Cathode Ray Tube: A vacuum tube equipped with an electron emitting CATHODE and a fluorescent screen which emits visible light when excited by the cathode ray. Cathode ray tubes are used as imaging devises for TELEVISIONS; COMPUTER TERMINALS; TEXT TELECOMMUNICATION DEVICES; oscilloscopes; and other DATA DISPLAY devices.Data Display: The visual display of data in a man-machine system. An example is when data is called from the computer and transmitted to a CATHODE RAY TUBE DISPLAY or LIQUID CRYSTAL display.Computer Terminals: Input/output devices designed to receive data in an environment associated with the job to be performed, and capable of transmitting entries to, and obtaining output from, the system of which it is a part. (Computer Dictionary, 4th ed.)Liquid Crystals: Materials in intermediate state between solid and liquid.Electrodes: Electric conductors through which electric currents enter or leave a medium, whether it be an electrolytic solution, solid, molten mass, gas, or vacuum.Bioelectric Energy Sources: Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.Electricity: The physical effects involving the presence of electric charges at rest and in motion.Dosage Compensation, Genetic: Genetic mechanisms that allow GENES to be expressed at a similar level irrespective of their GENE DOSAGE. This term is usually used in discussing genes that lie on the SEX CHROMOSOMES. Because the sex chromosomes are only partially homologous, there is a different copy number, i.e., dosage, of these genes in males vs. females. In DROSOPHILA, dosage compensation is accomplished by hypertranscription of genes located on the X CHROMOSOME. In mammals, dosage compensation of X chromosome genes is accomplished by random X CHROMOSOME INACTIVATION of one of the two X chromosomes in the female.Patents as Topic: Exclusive legal rights or privileges applied to inventions, plants, etc.Magnetic Fields: Areas of attractive or repulsive force surrounding MAGNETS.Color: The visually perceived property of objects created by absorption or reflection of specific wavelengths of light.Electromagnetic Fields: Fields representing the joint interplay of electric and magnetic forces.Magnetics: The study of MAGNETIC PHENOMENA.Color Perception: Mental processing of chromatic signals (COLOR VISION) from the eye by the VISUAL CORTEX where they are converted into symbolic representations. Color perception involves numerous neurons, and is influenced not only by the distribution of wavelengths from the viewed object, but also by its background color and brightness contrast at its boundary.Lenses, Intraocular: Artificial implanted lenses.Radius: The outer shorter of the two bones of the FOREARM, lying parallel to the ULNA and partially revolving around it.Lenses: Pieces of glass or other transparent materials used for magnification or increased visual acuity.Spectroscopy, Electron Energy-Loss: A technique for analysis of the chemical composition of molecules. A substance is bombarded with monochromatic ELECTRONS. Some of the electrons passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The energy loss is element dependent. Analysis of the energy loss spectrum reveals the elemental composition of a specimen. ENERGY-FILTERED TRANSMISSION ELECTRON MICROSCOPY is a type of electron energy loss spectroscopy carried out in electron microscopes specially outfitted to analyze the spectrum of electron energy loss.X-Ray Intensifying Screens: Screens which absorb the energy in the x-ray beam that has penetrated the patient and convert this energy into a light pattern which has as nearly as possible the same information as the original x-ray beam. The more light a screen produces for a given input of x-radiation, the less x-ray exposure and thus shorter exposure time are needed to expose the film. In most film-screen systems, the film is sandwiched between two screens in a cassette so that the emulsion on each side is exposed to the light from its contiguous screen.Microscopy, Energy-Filtering Transmission Electron: An analytical transmission electron microscopy method using an electron microscope fitted with an energy filtering lens. The method is based on the principle that some of the ELECTRONS passing through the specimen will lose energy when they ionize inner shell electrons of the atoms in the specimen. The amount of energy loss is dependent upon the element. Analysis of the energy loss spectrum (ELECTRON ENERGY-LOSS SPECTROSCOPY) reveals the elemental composition of a specimen. It is used analytically and quantitatively to determine which, how much of, and where specific ELEMENTS are in a sample. For example, it is used for elemental mapping of PHOSPHORUS to trace the strands of NUCLEIC ACIDS in nucleoprotein complexes.Computer Simulation: Computer-based representation of physical systems and phenomena such as chemical processes.ComputersWireless Technology: Techniques using energy such as radio frequency, infrared light, laser light, visible light, or acoustic energy to transfer information without the use of wires, over both short and long distances.Periodicals as Topic: A publication issued at stated, more or less regular, intervals.Firearms: Small-arms weapons, including handguns, pistols, revolvers, rifles, shotguns, etc.Microscopy, Electron: Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen.Computer Communication Networks: A system containing any combination of computers, computer terminals, printers, audio or visual display devices, or telephones interconnected by telecommunications equipment or cables: used to transmit or receive information. (Random House Unabridged Dictionary, 2d ed)Lasers: An optical source that emits photons in a coherent beam. Light Amplification by Stimulated Emission of Radiation (LASER) is brought about using devices that transform light of varying frequencies into a single intense, nearly nondivergent beam of monochromatic radiation. Lasers operate in the infrared, visible, ultraviolet, or X-ray regions of the spectrum.Argon: Argon. A noble gas with the atomic symbol Ar, atomic number 18, and atomic weight 39.948. It is used in fluorescent tubes and wherever an inert atmosphere is desired and nitrogen cannot be used.Telescopes: Instruments used to observe distant objects.Micronucleus Tests: Induction and quantitative measurement of chromosomal damage leading to the formation of micronuclei (MICRONUCLEI, CHROMOSOME-DEFECTIVE) in cells which have been exposed to genotoxic agents or IONIZING RADIATION.Micronuclei, Chromosome-Defective: Defective nuclei produced during the TELOPHASE of MITOSIS or MEIOSIS by lagging CHROMOSOMES or chromosome fragments derived from spontaneous or experimentally induced chromosomal structural changes.Practice Guidelines as Topic: Directions or principles presenting current or future rules of policy for assisting health care practitioners in patient care decisions regarding diagnosis, therapy, or related clinical circumstances. The guidelines may be developed by government agencies at any level, institutions, professional societies, governing boards, or by the convening of expert panels. The guidelines form a basis for the evaluation of all aspects of health care and delivery.Editorial Policies: The guidelines and policy statements set forth by the editor(s) or editorial board of a publication.Publications: Copies of a work or document distributed to the public by sale, rental, lease, or lending. (From ALA Glossary of Library and Information Science, 1983, p181)Hepatitis, Infectious Canine: A contagious disease caused by canine adenovirus (ADENOVIRUSES, CANINE) infecting the LIVER, the EYE, the KIDNEY, and other organs in dogs, other canids, and bears. Symptoms include FEVER; EDEMA; VOMITING; and DIARRHEA.African Americans: Persons living in the United States having origins in any of the black groups of Africa.Publishing: "The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.Photochemotherapy: Therapy using oral or topical photosensitizing agents with subsequent exposure to light.Light: That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.Photosensitizing Agents: Drugs that are pharmacologically inactive but when exposed to ultraviolet radiation or sunlight are converted to their active metabolite to produce a beneficial reaction affecting the diseased tissue. These compounds can be administered topically or systemically and have been used therapeutically to treat psoriasis and various types of neoplasms.Molecular Sequence Data: Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.Base Sequence: The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence.Sphygmomanometers: Instruments for measuring arterial blood pressure consisting of an inflatable cuff, inflating bulb, and a gauge showing the blood pressure. (Stedman, 26th ed)Mercury: A silver metallic element that exists as a liquid at room temperature. It has the atomic symbol Hg (from hydrargyrum, liquid silver), atomic number 80, and atomic weight 200.59. Mercury is used in many industrial applications and its salts have been employed therapeutically as purgatives, antisyphilitics, disinfectants, and astringents. It can be absorbed through the skin and mucous membranes which leads to MERCURY POISONING. Because of its toxicity, the clinical use of mercury and mercurials is diminishing.Organomercury Compounds: Organic compounds which contain mercury as an integral part of the molecule.Mercury Compounds: Inorganic compounds that contain mercury as an integral part of the molecule.Phenylmercury Compounds: Organic mercury compounds in which the mercury is attached to a phenyl group. Often used as fungicides and seed treatment agents.Blood Pressure Determination: Techniques for measuring blood pressure.p-Chloromercuribenzoic Acid: An organic mercurial used as a sulfhydryl reagent.Dictionaries, MedicalDictionaries as Topic: Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.Dictionaries, ChemicalPollen Tube: A growth from a pollen grain down into the flower style which allows two sperm to pass, one to the ovum within the ovule, and the other to the central cell of the ovule to produce endosperm of SEEDS.Neural Tube Defects: Congenital malformations of the central nervous system and adjacent structures related to defective neural tube closure during the first trimester of pregnancy generally occurring between days 18-29 of gestation. Ectodermal and mesodermal malformations (mainly involving the skull and vertebrae) may occur as a result of defects of neural tube closure. (From Joynt, Clinical Neurology, 1992, Ch55, pp31-41)Neural Tube: A tube of ectodermal tissue in an embryo that will give rise to the CENTRAL NERVOUS SYSTEM, including the SPINAL CORD and the BRAIN. Lumen within the neural tube is called neural canal which gives rise to the central canal of the spinal cord and the ventricles of the brain. For malformation of the neural tube, see NEURAL TUBE DEFECTS.Electrons: Stable elementary particles having the smallest known negative charge, present in all elements; also called negatrons. Positively charged electrons are called positrons. The numbers, energies and arrangement of electrons around atomic nuclei determine the chemical identities of elements. Beams of electrons are called CATHODE RAYS.

[Effect of ambient light variations on luminance ratio of CRT monitor and image contrast in ultrasonography]. (1/6)

Variation in the luminance ratio of a cathode ray tube(CRT)monitor and the ultrasonographic images at different levels of ambient light(0-150 lux)was investigated to obtain optimum ambient light in the ultrasonography suite. The maximum and minimum luminances of test patterns and ultrasonographic images were measured after three technicians independently optimized the brightness and contrast of the CRT monitor and ultrasonographic images at different levels of ambient light. Furthermore, the luminance ratio was calculated from the maximum luminance divided by the minimum luminance. When ambient light increased, it was difficult for the technicians to optimize the brightness and contrast settings of the CRT monitor to maintain a high luminance ratio at 0 lux. The luminance ratio decreased rapidly as ambient light increased up to 20 lux. However, the luminance ratio decreased gradually when ambient light was higher than 20 lux. It is necessary to take into consideration the ambient light to maintain a high luminance ratio of ultrasonographic images.  (+info)

Neural response dynamics of spiking and local field potential activity depend on CRT monitor refresh rate in the tree shrew primary visual cortex. (2/6)

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Detection of changes in luminance distributions. (3/6)

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Temporal properties of liquid crystal displays: implications for vision science experiments. (4/6)

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Assessment of age changes and repeatability for computer-based rod dark adaptation. (5/6)

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Evaluation of an organic light-emitting diode display for precise visual stimulation. (6/6)

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Nov. 29, 1966 o. E. HULL. 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Deo. 7, 1962 9 sheets-sheet 1 k Kivu, Nov. 29, 1966 o. EA HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 2 Filed Dec. Nov. 29, 1966 o. E. HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 5 Filed Deo. 7, 1962 f f e .y L C, 5 Il 7 5 /MM 5 2 j f 6 Y f6 lita i114. .c A Nov. Z9, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. 7, 1962 9 sheets-sheet 4 Nov. 29, 1966 o. E. HULL CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY 9 Sheets-Sheet 5 Filed Dec. Nov. 29, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. 7, 1962 9 Sheets-Sheet 6 fw i m w www ww www. Nm uw. www mmm A www SNN Nov. 29, 1966 o. E. HULL 3,289,196 CATHODE RAY TUBE DISPLAY WITH MEANS FOR RECORDING THE TUBE DISPLAY Filed Dec. ...
CARBONARI, Karina et al. Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display monitors . Genet. Mol. Biol. [online]. 2005, vol.28, n.3, pp.469-474. ISSN 1415-4757. http://dx.doi.org/10.1590/S1415-47572005000300024.. It is well recognized that electromagnetic fields can affect the biological functions of living organisms at both cellular and molecular level. The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. We studied the effects of occupational exposure to VDMs in 10 males and 10 females occupationally exposed to VDMs and 20 unexposed control subjects matched for age and sex. Genetic damage was assessed by examining the frequency of micronuclei in exfoliated buccal cells and the frequency of other nuclear abnormalities such as binucleated ...
TY - JOUR. T1 - Organic light-emitting diodes with an electro-deposited copper(I) thiocyanate (CuSCN) hole-injection layer based on aqueous electrolyte. AU - Tsai, Chi Ting. AU - Gottam, Sandeep Reddy. AU - Kao, Po Ching. AU - Perng, Dung Ching. AU - Chu, Sheng Yuan. PY - 2019/10. Y1 - 2019/10. N2 - Copper(I) thiocyanate (CuSCN) has been drawing much attention in optoelectronics due to its exceptional optical and electrical properties, as well as its processing versatility. The first organic light-emitting diodes (OLEDs) integrated with electro-deposited CuSCN crystalline thin films based on aqueous electrolyte were fabricated. With precisely tuned deposition parameters, the CuSCN thin films with satisfactory surface roughness and sufficient grain density were realized. We found that the driving voltage (voltage at a current density of 100 mA/cm2) and turn-on voltage of OLEDs using CuSCN as the hole injection layer (HIL) can be reduced by 1.41 and 1.79 V, respectively, compared with devices ...
An improved lens system for a projection television is described. The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor elements mounted thereto. The aspheric surface of the face glass has its maximum radius at the optical axis and is of lesser radius outwardly thereof. From the screen, the lens system companies a first aspheric lens of relatively weak power, a second biconvex lens of relatively high positive power, a third aspheric lens of weak positive power and a fourth lens having a concave face on its screen sider and of relatively large negative power.
A flexible organic light emitting diode (FOLED) is a type of organic light-emitting diode (OLED) incorporating a flexible plastic substrate on which the electroluminescent organic semiconductor is deposited. This enables the device to be bent or rolled while still operating. Currently the focus of research in industrial and academic groups, flexible OLEDs form one method of fabricating a rollable display. An OLED emits light due to the electroluminescence of thin films of organic semiconductors approximately 100 nm thick. Regular OLEDs are usually fabricated on a glass substrate, but by replacing glass with a flexible plastic such as polyethylene terephthalate (PET) among others, OLEDs can be made both bendable and lightweight. Such materials may not be suitable for comparable devices based on inorganic semiconductors due to the need for lattice matching and the high temperature fabrication procedure involved. In contrast, flexible OLED devices can be fabricated by deposition of the organic ...
Page contains details about TTPPCCuI-based organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Page contains details about organic light-emitting diode with polyvinylpyrrolidone-passivated vanadium oxide film after UV-O3 treatment as hole transport layer . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
Organic electroluminescent materials play an important role in improving the optoelectronic performance of organic light-emitting diodes (OLEDs). Aromatic imide/amide-based organic small-molecule emitters have caught increasing attention due to their unique properties, such as strong electron-withdrawing characteri
Introduction The purpose of this book is to bring a broad spectrum of information related to cathode ray tube (CRT)-based displays into a single easy-to-understand narrative. It requires no working knowledge of a television or how one programs a video cassette recorder (VCR). The starting point of each chapter will be basic information that is followed by detailed explanations and insight into the design trade offs that influence the image observed. The sequence of topics follows that in a workshop prepared by the author, and the chapters may be read in any order. However, the information in each chapter does build upon the material in the preceding chapters. It should be noted that all references to a cathode ray tube in this book are to only the glass part giving off light in a display. They do not include the entire display or monitor with the associated electronics, a point of confusion at times even within the industry. All CRTs use glass as a starting point; formulas involved (glass melt) ...
Three scanners are disclosed; common to all is an argon ion laser. In the first two versions, light passes through a telescope, which is provided to expand and collimate the laser beam, through a servo-driven iris whose function is to adjust the length of the slit image to be formed by the optics. The beam enters a rotating cradle, passes through a cylindrical lens, and strikes a galvanometer-driven mirror. Rotating the galvanometer about its axis deflects the image of the laser beam on the main scanning mirror. A second lens images the galvanometer mirror onto the CRT panel. In the first version, the main scanning mirror is a flat reflector; in the second version, the scanning mirror is either a prism or a mirror set at 45 degrees to the incident laser beam. In both versions, a motor-driven optical rotator is between the galvanometer-driven mirror and the scanning mirror. Several important features include the servo-driven image rotator and the motor-driven iris. In the third version, the optical
The moving images that it receives from a nearby broadcasting station is projected in three dimensions by the cathode ray tube or "CRT" and it also has an audio decoder to reproduce the sounds from the transmitted radio signals through the audio speakers. It is mainly used for entertainment, information and education. It is also referred to as a television set, television transmission or television program.. Unlike the internet where it is still struggling to compete with TV even nearing the completion of its third decade since it was made for public use; TV took over print media and radio broadcasting overnight! The world quickly catch on and before we knew it, TV had become a global phenomenon. Today there are approximately 4.7 billion units of television throughout the world and they range from the old cathode ray tubes to the flat LCD and plasma screens and all the way up to the latest LED curved TVs. In fact, there are more TV sets than computers in the world today and it seems computers ...
An examination of the human heart is carried out by means of ultrasound waves emitted by piezo-electric crystals. The crystals are inserted in a holder adapted to be placed on the body of a patient; they are arranged in a row and have parallel axes of radiation. The crystals are cyclically excited at a high scanning frequency, and the echo signals reflected by the heart walls and received by the crystals are displayed on the screen of a cathode ray tube to obtain a cross-sectional picture of the heart. In a modification of the invention, the holder comprises two or more rows of crystals radiating at different angles; in this case the echo signals related to a common point of the heart wall are superposed on the screen of the cathode ray tube by means of a coordinate transformation.
To sequence DNA, DNA samples marked with flourscent infrared dye are applied at a plurality of locations for electrophoresing in a plurality of channels through a gel electrophoresis slab. The channels are scanned with a laser and a sensor, that include a microscope focused on the gel slab. The focal point and slab are adjusted with respect to each other so that the focal point of the microscope remains on the gel slab during a scan. The data from the scan is directly used to amplitude modulate density readings on a display, and the scan is displayed in a horizontal sweep of a cathode ray tube, whereby said cathode ray tube provides intensity displays of bands representing DNA. Different sizes of glass gel sandwiches may be mounted to the same console for different sequencing tasks.
Feb. 2, 1954 M G, WHlTE 2,668,286 MOVING OBJECT SELECTIVE DETECTION SYSTEM Filed 001:. 25, 1943 ELE; #Magg/c Patented Feb. 2, 1954 assise UNITED STATES ATENT OFFICE MOVING OBJECT SELECTIVE DETECTION SYSTEM 15 Claims. Ihis invention relates to radio echo detection systems and particularly to a method and apparatus for improving the indication in such systems. One system of radio-echo detection which has been successfully used comprises a transmitter and associated antenna system for radiating a beam oi electromagnetic radiation into space toward the horizon and rotating the beam about a substantially vertical axis, so as to scan the horizon in repeated cycles. The radiation is modulated, so as to form discrete pulses and is reflected back from objects within the field of scanning which intercept the radiation, causing the electron beam of a cathode ray tube to be intensied, so as to produce spots of light on the face of the tube. The electron beam oi the cathode ray tube is caused to sweep ...
Thermal ground data and thermal reference data acquired by an airborne scanner are recorded on magnetic tape along with timing signals synchronized with the scanning. At some later time, the signals are played back and processed to produce a color image on a line-scanned cathode ray tube and the image is recorded on a continuous color film strip. Ground data signals are processed by a particular analog-to-digital converter to provide signals according to the instantaneous level of the thermal ground data compared to discrete reference levels which in turn are calibrated according to the thermal reference data. The digital signals gate color guns in the cathode ray tube at fixed intensity levels so that the color image is composed of a predetermined number of colors.
Scientists from Tohoku University in Japan have created a new type of energy-efficient flat light source. The light source, which employs carbon nanotubes, has a very low power consumption of around 0.1 Watt for every hours operation.
A method is disclosed for making multi-component phosphor structures whose emission color depends on the energy of the electrons used to excite them. The method comprises the mixing of two or more component phosphors, each component phosphor having particles with non-luminescent interior core regions and non-luminescent exterior surface regions separated by a luminescent region, the region dimensions and emission color of each component being distinct. These structures are formed by diffusing activating and/or coactivating impurities partially into the particles, or by growth of activated material on the outside of non-luminescent material, and by the subsequent diffusion of luminescence killing impurities partially into the luminescent region.
Local field potential (LFP) recordings from patients with deep brain stimulation electrodes in the basal ganglia have suggested that frequency-specific activities correlate with force or effort, but previous studies have not been able to disambiguate the two. Here, we dissociated effort from actual force generated by contrasting the force generation of different fingers while recording LFP activity from the subthalamic nucleus (STN) in patients with Parkinsons disease who had undergone functional surgery. Patients were studied while on their normal dopaminergic medication. We investigated the relationship between frequency-specific oscillatory activity in the STN and voluntary flexion of either the index or little finger at different effort levels. At each tested effort level (10%, 25%, and 40% of the maximal voluntary contraction force of each individual finger), the index finger generated larger force than the little finger. Movement-related suppression of beta-band power in the STN LFP was
TY - JOUR. T1 - Light-emitting diodes fabricated from biomolecular compounds. AU - Tajima, H.. AU - Shimatani, K.. AU - Komino, Takeshi. AU - Ikeda, S.. AU - Matsuda, M.. AU - Ando, Y.. AU - Akiyama, H.. PY - 2006/8/15. Y1 - 2006/8/15. N2 - We fabricated ITO/biomolecule/Al junctions using chrolophyll a, cytochrome c, myoglobin, hemin, Vitamin B12. All the junctions worked as organic light-emitting diode (OLED). The quantum efficiencies of the fabricated OLED were of the order of 1 × 10-7 around V = 10 V, and did not seriously depend on whether or not a compound exhibits photoluminescence. Based on the energy diagram of the ITO/cytochrome c/Al junction, we discuss the difference of the EL spectrum from the photoluminescence or absorption spectrum.. AB - We fabricated ITO/biomolecule/Al junctions using chrolophyll a, cytochrome c, myoglobin, hemin, Vitamin B12. All the junctions worked as organic light-emitting diode (OLED). The quantum efficiencies of the fabricated OLED were of the order of 1 ...
Abstract: Proponents for sustainable alternative lighting and display options advocate for organic light-emitting diodes (OLEDs), particularly polymer-based organic light-emitting diodes (P-OLEDs), because of their potential for low-cost fabrication, more versatile device formats and lower power consumption compared to traditional options. Here, an economic, energy and CO2 emissions assessment is carried out for four different laboratory-scale, blue-emitting P-OLED device architectures: bottom-emitting conventional; bottom-emitting inverted; top-emitting conventional; and top-emitting inverted. Additionally, comparisons with a standard, commercial-scale, blue inorganic light-emitting diode (LED) device architecture are made. The various P-OLED device architectures are investigated due to their potential to increase operational lifetime (inverted) and light out-coupling efficiency (top-emitting). The following metrics are used in this assessment: device cost per area; yearly operating cost; ...
0151] The hole transport layer comprises hole transport material. Examples of hole transport materials for the hole transport layer have been summarized for example, in Kirk-Othmer Encyclopedia of Chemical Technology, Fourth Edition, Vol. 18, p. 837-860, 1996, by Y. Wang. Both hole transporting small molecules and polymers can be used. Commonly used hole transporting molecules include, but are not limited to: 4,4,4-tris(N,N-diphenyl-amino)-triphenylamine (TDATA); 4,4,4-tris(N-3-methylphenyl-N-phenyl-amino)-triphenylamine (MTDATA); N,N-diphenyl-N,N-bis(3-methylphenyl)-[1,1-biphenyl]-4,4-diamine (TPD); 4,4-bis(carbazol-9-yl)biphenyl (CBP); 1,3-bis(carbazol-9-yl)benzene (mCP); 1,1-bis[(di-4-tolylamino)phenyl]cyclohexane (TAPC); N,N-bis(4-methylphenyl)-N,N-bis(4-ethylphenyl)-[1,1-(3,3-dimethyl)bip- henyl]-4,4-diamine (ETPD); tetrakis-(3-methylphenyl)-N,N,N,N-2,5-phenylenediamine (PDA); α-phenyl-4-N,N-diphenylaminostyrene (TPS); p-(diethylamino)benzaldehyde diphenylhydrazone (DEH); ...
Non-doping white organic light-emitting devices (WOLEDs) based on an ultrathin yellow-emitting layer of rubrene inserted between the blue-emitting layer 4,4-bis(2,2-diphenylvinyl)-1,1-biphenyl (DPVBi) and the electron transport layer tris-(8-hydroxyquinoline)aluminum (Alq3) fabricated by combinatorial sliding shutter technique are reported. Three of the the sixteen devices made had Commission Internationale de lEclairage (CIE) coordinates within the white region at 8 - 16 V, ranging from (0.31, 0.38) to (0.34, 0.42). All three devices had a 5-nm thickness of DPVBi layer and an ultrathin rubrene layer of thickness of 0.05-, 0.10-, and 0.15 nm, respectively. A maximum luminance of 12,900 cd/m2 at 17 V and an efficiency of 5.5 cd/A at 8.5 V were obtained in the devices with 0.05 nm rubrene layer. These devices can be fabricated rather easily due to their simple device structure and they are very appealing to low-cost general lighting applications ...
THIN FILM DEPOSITION APPARATUS, METHOD OF MANUFACTURING ORGANIC LIGHT-EMITTING DISPLAY DEVICE BY USING THE THIN FILM DEPOSITION APPARATUS, AND ORGANIC LIGHT-EMITTING DISPLAY DEVICE MANUFACTURED BY USING THE METHOD - A thin film deposition apparatus that is suitable for manufacturing large-sized display devices on a mass scale and that can be used for high-definition patterning, a method of manufacturing an organic light-emitting display device by using the thin film deposition apparatus, and an organic light-emitting display device manufactured by using the method. The thin film deposition apparatus includes: a deposition source that discharges a deposition material; a deposition source nozzle unit disposed at a side of the deposition source and including a plurality of deposition source nozzles arranged in a first direction; a patterning slit sheet disposed opposite to the deposition source nozzle unit and including a plurality of patterning slits arranged in the first direction; a first ...
Alloys, Cathode, Cathode Ray, Cathode Ray Tubes, Electrodeposition, Electron, Electron Microscopy, Fluorescence, Microscopy, PH, Scanning Electron Microscopy, Solutions, X-ray
A system for transferring data from a CRT (cathode ray tube) video display monitor on a personal computer to a portable information device such as a multifunction electronic wristwatch. The CRT video display has a video signal generator providing raster scanning of the screen and a program for formatting the binary coded data into blocks of serial data bits, with start bit and stop bit. The blocks of data are supplied to the video signal generator in synchronism with raster scanning of the screen so as to provide an integral number of one or more blocks of data for each vertical frame, and modulated to vary the brightness of the screen and provide light pulses corresponding to presence or absence of binary coded transmitter pulses. The portable information device is manipulated within line of sight of the CRT screen and has a photosensor to detect light pulses when the photosensor is directed toward the screen. Signals from the photosensor are amplified and filtered to remove ambient light source
This ARP describes methods for measuring the visual performance of direct view cathode ray tube displays used in aircraft flight decks and cockpits. Procedures may vary depending upon the type of display (for example, monochrome, color shadowmask, beam index, etc.), but all types are considered.. This ARP describes the methods to be used in measuring those performance characteristics important for color and luminance use in direct view airborne electronic display systems.. ...
The visual stimuli used to map response properties consisted of sine wave gratings at 80% contrast drifting across the central 60° of visual space (mean luminance, 27.5 cd/m2). The portions of areas 17 and 18 that were imaged correspond to the central 5-10° of visual space (Tusa et al., 1978, 1979). All stimulus sets included four randomly interleaved mean-luminance gray stimuli; the responses averaged over these four stimuli were used to produce a "blank" response image. Stimuli were generated by computer and displayed on a gamma corrected 21 inch cathode ray tube (CRT) monitor using the Psychophysics Toolbox extensions for Matlab (MathWorks, Natick, MA) (Brainard, 1997; Pelli, 1997). The contrast linearity of the stimulus system was confirmed by imaging the CRT using a 1M30 CCD camera (supplemental Fig. 1, available at www.jneurosci.org as supplemental material).. Stimulus gratings first appeared as stationary images for 6 s (the interstimulus interval) and then drifted across the screen for ...
A cathode ray tube (CRT) monitor uses about 74 watts to display an all white web page, but only uses 59 watts to display an all black page. Worldwide, about 25 percent of the monitors currently in use are CRT, which means that they waste energy displaying white backgrounds. Read the stats ...
In an airborne radar system, moving ground targets are identified on a cathode ray tube (CRT) display and their motion tracked to allow precise delivery of air-to-ground weapons. Target location errors, due to the effect of target motion upon the doppler frequency of the received ...
the preparation of drugs in anticipation of drug orders based on routine, regularly observed prescribing patterns. Pharmaceutical compounding must be in compliance with FFDCA Section 503A and any regulations promulgated by FDA concerning compounding, pertaining to this section.. "Computer" Programmable electronic device, capable of multifunctions including but not limited to storage, retrieval and processing of information.. "Controlled Substance" Those drug items regulated by Federal (CSA of 1970) and/or State Controlled (dangerous) Substances Act.. "CRT" Cathode Ray Tube used to impose visual information on a screen.. "Delivery" The transfer of a dispensed prescription to the ultimate user (patient) or his/her agent.. "Dispensing" To furnish or deliver a drug to an ultimate user by or pursuant to the lawful order of a practitioner; including the preparation, packaging, labeling or compounding necessary to prepare the drug for that delivery.. "Downtime" That period of time when a computer is ...
Looking for kinescoping? Find out information about kinescoping. picture tube television picture tube, a cathode ray tube used to reproduce television images. The kinescope is used for viewing black-and-white or color... Explanation of kinescoping
In the cathode ray tube, another electron beam is produced.This beam is made to cross the screen 625 times, so making the 625 lines. At the end of each line the beam flies back and starts the next line. These 625 lines are produced in 1/30 second and each set of 625 lines is called a frame. beam crosses the back of the picture screen it gets weaker and stronger in accordance with the signals picked up from the photosensitive dots in the camera. The tube contains a special fluorescent screen , Coated with chemicals, which glow under the impact of the electron beam. The stronger the beam, the brighter the light. The set also contains a loudspeaker for producing the sound and a synchronizing ...
A getter is a deposit of reactive material that is placed inside a vacuum system, for the purpose of completing and maintaining the vacuum. When gas molecules strike the getter material, they combine with it chemically or by absorption. Thus the getter removes small amounts of gas from the evacuated space. The getter is usually a coating applied to a surface within the evacuated chamber. A vacuum is initially created by connecting a closed container to a vacuum pump. After achieving a vacuum, the container can be sealed, or the vacuum pump can be left running. Getters are especially important in sealed systems, such as vacuum tubes, including cathode ray tubes (CRTs), and vacuum insulated panels, which must maintain a vacuum for a long time. This is because the inner surfaces of the container release absorbed gases for a long time after the vacuum is established. The getter continually removes this residual gas as it is produced. Even in systems which are continually evacuated by a vacuum pump, ...
A camera for selectively filming at least two separate types of input images through a first and second object lenses respectively. A mask is positioned between the film and a rotatable lense carrier upon which is mounted the first object lense and mirror which directs the image of the second object lense to the film. The camera may be a microfiche camera for recording a document through the first object lense and for recording the image from a cathode ray tube through the second object lense.
Scanning Electron Microscopy (SEM). A more recent and extremely useful investigative tool is the scanning electron microscope (SEM). The surface of the specimen to be examined is scanned with an electron beam, and the reflected (or back-scattered) beam of electrons is collected, then displayed at the same scanning rate on a cathode ray tube (similar to a TV screen). The image on the screen, which may be photographed, represents the surface features of the specimen. The surface may or may not be polished and etched, but it must be electrically conductive; a very thin metallic surface coating must be applied to nonconductive materials. Magnifications ranging from 10 to in excess of 50,000 diameters are possible, as are also very great depth-of-field. Accessory equipment permits qualitative and semiquantitative analysis of the elemental composition of very localized surface areas.. The figure bellow schematically illustrates its principles of operation. Basically, an electron gun produces an ...
Someone found a rather unique way to play The Last of Us Remastered. Twitter user Kamirenko connected his PlayStation 4 to an old cathode ray tube TV, making the survival horror experience of The Last of Us even more realistic. You wont see shiny textures, and high resolution characters, but youll feel like in a genuine horror movie.. I dont know about you, but is looks like he found the perfect way to play The Last of Us. If you have a forgotten TV in your attic, you should try plugging in a next-gen console, and play games like no one has before. Or you can just forget about it, and keep using your 100 inch TV.. #gallery-2 { margin: auto; } #gallery-2 .gallery-item { float: left; margin-top: 10px; text-align: center; width: 33%; } #gallery-2 img { border: 2px solid #cfcfcf; } #gallery-2 .gallery-caption { margin-left: 0; } /* see gallery_shortcode() in wp-includes/media.php */ ...
The term random patterns is used to describe the phenomenon that occurs when the human brain if faced with perceiving chaos. The human brain is uniquely organized to recognize patterns. It also creates them when faced with deciphering chaos. This can be exemplified by staring at a television screen that is tuned to receive no signals. Try turning your television on and select a channel with no broadcast ("snow"). The particles, which are ejected by the cathode ray tube onto a television screen, are in no way directed unless a broadcast is being received. When a non-broadcast channel is selected the particle stream is a completely random occurrence. A small percentage of the particles which impact the screen to make "snow" are stray cosmic particles left over from The Big Bang, and other stray particles, protons, neutrons, electrons, neutrinos and quarks ...
The 19th and early 20th centuries saw great advances in our understanding of the atom. This module takes readers through experiments with cathode ray tubes that led to the discovery of the first subatomic particle: the electron. The module then describes Thomsons plum pudding model of the atom along with Rutherfords gold foil experiment that resulted in the nuclear model of the atom. Also explained is Millikans oil drop experiment, which allowed him to determine an electrons charge. Readers will see how the work of many scientists was critical in this period of rapid development in atomic theory.
Consumers are changing their buying habits as they become aware of the effect gadgetry is having on the climate.. A survey of 1,010 adults conducted by the Energy Saving Trust found people are increasingly considering environmental impacts in their electronics purchases.. A report from the body familiarly entitled "The Rise of the Machines" said more than half want the energy efficiency labelling currently found on white goods to be extended to consumer electronics like mp3 players and laptops.. Energy Saving Trust chief executive Philip Sellwood said: "As the consumer electronics market continues to grow, further development of energy efficient products will be vital to help in the fight against climate change.". Consumer electronics currently account for 16 per cent of domestic electricity consumption and their demand is expected to double by 2010, with plasma screens eating up four times the energy of cathode ray tubes. Set-top boxes will cost £780m annually in energy by 2010 and the ...
Directory of patents published on November 4, 1981 (1,499 patents): Method for winding several turns of wire on a case, in particular for the winding of deviation rings for cathode ray tubes, machine for carrying out the method and winding obtained by the method.; Solid state control for motor-generator welder.; Brake magnet for magnetic rail brakes of rail vehicles.; Mannich-base hydroxamic acid prodrugs for the improved bioavailability of non-steroidal anti-inflammatory agents, a process for preparing and a pharmaceutical composition containing them.; Article carrier
You are at: Home » Products » Diagnosis Equipment » Stationary Glass X-ray tubes Paranoiac X ray tube In total 213268 number ofProductsinfo,Released today. 0 number of ...
PIXEL AND ORGANIC LIGHT EMITTING DIODE DISPLAY USING THE SAME | POWER SUPPLY CIRCUIT, ARRAY SUBSTRATE, AND DISPLAY DEVICE | METHOD OF MANUFACTURING CONNECTION STRUCTURE CONNECTING CATHODE ELECTRODE TO AUXILIARY CATHODE ELECTRODE AND... | Organic Light-Emitting Diode Display Device | Pixel Circuit And Driving Method Thereof, Array Substrate, Display Panel And Display Device |
The RadSeeker radioisotope identifier and detector features a rugged design with self-calibrating capability. It is 30.5cm-long, 17.8cm-wide and 11.4cm-high, and has energy level varying between 25keV and 3MeV. Weights of the CS, CL and CS-G variants are 2.4kg, 2.24kg and 2.27kg respectively.. The device locates the source of suspicious substances with high accuracy in shielded or concealed conditions. The detection results are displayed in real-time on a high-contrast, organic light-emitting diode (OLED) colour display with a screen resolution of 428px x 272px.. The background gamma or neutron radiation is indicated by high-sensitivity detection alarms / alerts. The alarm indications are made by audio, visual, earphone, vibrator and discrete ultra-bright light emitting diodes. The threshold for audio alarm is adjustable.. Accessories of the RadSeeker include USB cables, transportation case, AC power adapter, desktop battery charger, additional battery pack, 12V DC car adapter, bumpers, sling ...
Rafael Gomez-Bombarelli joined the MIT faculty in January 2018. He received a B.S., M.S., and Ph.D. in Chemistry from Universidad de Salamanca in Spain, followed by postdoctoral work at Heriot-Watt University and Harvard University after which he was a senior researcher at Kyulux NA applying Harvard-licensed technology to create real-life commercial organic light-emitting diode (OLED) products. Dr. Gomez-Bombarellis research trajectory has evolved from experimental mechanistic studies of organic molecules with emphasis on environmental toxicity to computer-driven design of molecular materials. By combining first-principles simulation with machine learning on theoretical and experimental datasets he aims to accelerate the discovery cycle of novel practical materials. Through his research at MIT he plans to address the role of molecular transformation in materials discovery, in areas such as catalyst design, the environmentally-minded development of novel and replacement chemicals, and designing ...
Candace helps to prosecute patents in the fields of chemistry and materials science, including: batteries, catalysis, OLEDs (organic light-emitting diodes), and solar fuel cells, drawing on her experience in inorganic, organic, and materials chemistry.
Mechanochromic luminescent (MCL) materials change their color in response to a change in their environment, like pressure and temperature. To date, most MCL materials only change between two colors, limiting their applications. The international research team comprising of chemists at Osaka University and physicists at Durham University has developed tricolor-changing MLC materials. Not only that, the developed materials exhibited efficient thermally activated delayed fluorescence (TADF) and allowed high performance organic light-emitting diodes (OLEDs) devices. The findings can be read about in Chemical Science.. "Most MCL materials generate two colors by switching between a stable state and one metastable state. To realize multi-color MCL, more metastable states are necessary," explain Professors Youhei Takeda and Satoshi Minakata at the Department of Applied Chemistry, Graduate School of Engineering of Osaka University. To create these states, the chemist team led by Takeda and Minakata ...
Ultimate device performances of blue phosphorescent organic light-emitting diodes, an external quantum efficiency of 27.6%, a device lifetime over 10 000 h at 100 cd m−2, and pure blue color coordinates of (0.12, 0.13), were simultaneously achieved using a device architecture employing an electroplex host. A
The AK240 can play WAV, FLAC, WMA, MP3, OGG, APE (Normal, High, Fast), AAC, ALAC, AIFF, DFF, DSF, DSD64, and DSD128 files; word lengths of 8, 16, or 24 bits; and sample rates up to 192kHz -- in short, just about everything. Its claimed frequency response is 20Hz-20kHz, +/-0.02dB, or 10Hz-70kHz, +/-3dB. It supports Bluetooth v.4.0 and 802.11b/g/n (2.4GHz) Wi-Fi. The specified signal/noise ratio is 116dB at 1kHz (balanced, 117dB), and the crosstalk is 130dB at 1kHz (balanced, 135dB). The AK240s spec of total harmonic distortion plus noise is an impressive 0.0007% (balanced, 0.0005%).. Discoveries. Not only can the AK240s active-matrix organic light-emitting diode (AMOLED) touchscreen deliver gorgeous images, its the most responsive touchscreen Ive ever used. Its impressively resolving, so youll want to capture album-cover art thats at least 500x500 pixels. Some of my recordings are obscure -- I cant always find an album cover of that high a resolution, and when I cant, it shows. Once you ...
Lumicures treatment is a new twist on an existing treatment called photodynamic therapy. It starts with a cream containing aminolevulinic acid, which becomes photosensitive when it comes in contact with a cancer lesion. When exposed to light, the cream interacts with only the cancerous cells, making it a very selective skin treatment.. Lumicures light source is a low-powered organic light-emitting diode embedded in a small adhesive device. Its battery module - roughly the size of an MP3 player - fits easily in a pocket.. The device is estimated to cost about $200 to $300, compared with roughly $15,000 to $20,000 for the standard therapy. Human trials are ongoing and the company hopes to launch the device in about two years.. ...
Cytocompatibility studies of organic light-emitting diodes (OLEDs) have been carried out on cell cultures for the first time at the Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP to test how well OLEDs are tolerated by cells. The results offer promising prospects for the use of OLEDs in the medical field, such as in light therapy. The findings will be published in a white paper entitled "Preliminary cytocompatibility studies for encapsulated OLEDs" and likewise be presented at the 4th Industry Partners Day of the Fraunhofer FEP in Dresden on September 28, 2016. (Mehr in: Pressemitteilungen - idw - Informationsdienst Wissenschaft). ...
Bragg scattering effects in bottom-emitting organic light-emitting diodes (OLEDs) grown on corrugated aluminum-doped zinc oxide electrodes are analyzed. Periodic corrugation is introduced by structuring the oxide electrode via UV laser ablation, a process that enables flexible adjustment of the period and height of corrugation. We demonstrate that fabrication of stable and electrically efficient OLEDs on these rough substrates is feasible. Sharp spectral features are superimposed onto the broad emission spectra of the OLEDs, providing clear evidence for Bragg scattering of light from guided modes into the air cone. Theoretical analysis based on an emissive dipole model and conservation of momentum considerations allows a quantitative description of scattering and the associated dispersion relations.. © 2013 Optical Society of America. Full Article , PDF Article ...
Researchers at the Georgia Tech Center for Organic Photonics and Electronics (COPE) were presented the Academic R&D Award at IDTechEx Printed Electronics USA, an industry event held in Santa Clara, Calif. on December 10.. COPE won this award after having discovered a universal technique to reduce the work function of a conductor for organic electronics. Using a polymer modifier containing simple aliphatic amine function groups to reduce the work function in a wide range of conductors, including noble metals such as gold (Au) and silver (Ag), conducting polymers, metal oxides, or graphene, air-stable low-work function electrodes were created. These polymers are inexpensive, environmentally friendly, and compatible with existing roll-to-roll mass production techniques. The method is applicable to organic electronic devices including organic solar cells, organic thin-film transistors, and organic light-emitting diodes.. Established in 2003, COPE is a premier national research and educational ...
LG has unveiled a new concept laptop they call the e-Book. No, this isnt an eBook reader. Its a forward-thinking laptop, sporting an OLED (Organic Light-Emitting Diode) screen (which is much more energy-efficient than an ordinary LCD screen), a second OLED screen for the keyboard, and a fuel-cell battery. Heres where things get confusing. Some sources report the battery uses .... Read More » ...
B) GENERAL 7 RADIATION PHYSICS 1) Structure of matter: The Atom, the nucleus, elemental particles, Atomic Mass and energy units, extra nuclear structure, molecular structure and Bonds, Atomic Energy Levels, Nuclear Energy levels, Electro magnetic Radiation, Quantum Nature of Radiation. The Electro magnetic Spectrum, Radiation Energy, Particle Radiation. 2)The Fundamentals of Nuclear physics: Natural & Artificial Radio- Activity, Exponential Decay, and activity. The Half life and Radio Active Series, Growth of Radio Active Daughter (Equilibrium) Modes of Radioactive Decay, Alpha Decay, Beta decay, Internal conversion Isomeric Transition, Nuclear Reaction, The (Alpha, P) (Alpha, N) Reactions, Proton, Bombardment photo Disintegration, Fission, Fusion, Activation of Nucloides. 3)Production of X- Rays: The X- Ray Tube: - Anode, Cathode, Basic X- Ray, Circuit, Voltage rectification Diagnostic X- ray tube, The Ray X- ray tube physics of X- rays production, Bremasstrahlung Characteristics X-ray: ...
Thank you for your interest in spreading the word on Proceedings of the Royal Society of London A: Mathematical, Physical and Engineering Sciences.. NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.. ...
Frank J. Diekmann is Publisher of Credit Union Journal, the nation�s leading newsweekly serving the credit union community. Diekmann co-founded the Journal in 1997, and prior to that co-founded and developed another credit union newsweekly in 1990. During his career Mr. Diekmann has traveled to all over the U.S. and from Sydney to Prague covering credit union-related developments, has been a frequent judge of credit union marketing competitions, is a frequent speaker to credit union audiences, and is the only journalist to ever graduate from the National Credit Union Foundation�s Development Education program. Prior to covering credit unions, Mr. Diekmann covered the nations banking and thrift industries for five years, and prior to that worked as a sports reporter in Cincinnati. Mr. Diekmann is also author of the book, Cathode Rays, the story of Cathode Ray�s Bar & Grill, where classic television characters go when they are no longer on TV. Mr. Diekmann is currently doing post-graduate work
At Paragon Vision Sciences, we are committed to understanding and meeting the quality and expectations of our customers worldwide. Our Research and Development Center is located at our headquarters in Mesa, Arizona, where we conduct basic research into contact lenses and product development. We insist on prioritizing eye safety and providing optimum products for each customer while maintaining a stringent safety system. We have established a comprehensive quality management system, which allows our organization to comply with ISO requirements that ensure our products meet the safety and effectiveness that your patients expect and deserve. ...
Enter Paragon CRT Dual Axis® Contact Lenses!! Paragon Vision now has the ability to custom design spherical lenses with different RZDs or LZAs 90 degrees from each other to mimic the contours of corneas that have uncommon elevations. This course details how the lenses are designed and what criteria are necessary to determine the correct combinations of RZD and LZA that will solve under-treatment or positioning issues.. ...
Dr. Paul SievingDr. Paul Sieving is a long-time vision researcher and director of the National Eye Institute, a part of the National Institutes of Health. FFB recently spoke with Dr. Sieving about his work.
Medical Xpress is a web-based medical and health news service that features the most comprehensive coverage in the fields of neuroscience, cardiology, cancer, HIV/AIDS, psychology, psychiatry, dentistry, genetics, diseases and conditions, medications and more.
At Contacts America we guarantee your Fluoroperm 60 contacts to be exactly as your eye doctor prescribed! Take advantage of our discounted prices (as low as $29.99) and purchase your Fluoroperm 60 contact lenses online.
Single Element Atomax hollow cathode lamp (HCL) for the detection of elemental Magnesium (Mg).. PerkinElmer Atomax 1.5"" hollow cathode lamps are crafted to the same high standards that have made our 2"" Lumina™ hollow cathode lamps the best in the industry. Drawing on more than 40 years of HCL design and manufacturing expertise, Atomax lamps now offer laboratories around the world a dependable, top-quality lighting source, regardless of the brand of AA instruments used.. All 1.5"" Atomax hollow cathode lamps are thoroughly tested to ensure maximum light output and spectral purity. Comparative results show that Atomax lamps provide equal or better performance than other AA lamps in the market. Precision engineered for high sensitivity, stable light output, low noise, and long life, you can rely on Atomax lamps for the accurate results you need.. ...
DESCRIPTION provided by applicant This project will lead to the development of an optimized X ray tube with focal spots that can be placed immediately below and around the multi leaf collimator MLC of a radiotherapy system By steering a focused electron beam e beam on a series of cooled tungsten targets in sequence this system will provide a set of projection images that can be reco .... ...
This paper evaluates the performance of a bimodal carbon fiber cathode and a carbon-epoxy multicapillary cathode operating within a reflex-triode sealed-tu
Accomplishing advancements in vision science requires clinician researchers with training that spans many disciplines. The Vision Clinical Scientist Program at...
For more than a year, the NEI has focused significant resources on establishing what it calls an "audacious goal" to fundamentally change the game in vision research and eye care. With so many great breakthroughs occurring in a variety of eye research areas, the NEI recognized it was the ideal time to consolidate energies of the vision science community and present a challenging goal that NEI Director Dr. Paul Sieving said is "big, important and inspiring." The development of the initiative included review of more than 500 suggested research goals, which were read by more than 80 experts.. I am delighted to report that the NEIs unveiling of its audacious goal at the annual meeting of the Association for Research in Vision and Ophthalmology is an enormous boost and affirmation for those of us on the front lines of fighting retinal degenerative diseases. The goal, "to regenerate the neurons and neural connections in the eye and visual system," is exactly what people with retinal diseases need to ...
Webvision summarizes recent advances in knowledge and understanding of the visual system through dedicated chapters and evolving discussion to serve as a clearing house for all things related to retina and vision science.. Contact: [email protected] ...
This work will, directly and indirectly, lead to a change in clinical practice, which will result in improved outcomes for patients with or at risk of developing this blinding condition," Professor Craig says.. "We are currently monitoring approximately 1,500 patients to investigate how genes and eye tests can be used to predict the risk of developing severe glaucoma in people with early signs of the disease.. "This will ensure that high-risk individuals can access treatment early, while those at low risk can be spared unnecessary treatment and seen less often by vision experts.". Flinders University Vice-Chancellor Professor Colin Stirling says the major new NHMRC Program Grant in ophthalmology highlights the level of expertise within Flinders Universitys leading College of Medicine and Public Health.. "Eye and vision science is one of our key strengths in both teaching and research at Flinders University," Professor Stirling says.. "Its long been known that a family history of glaucoma means ...
Webvision summarizes recent advances in knowledge and understanding of the visual system through dedicated chapters and evolving discussion to serve as a clearing house for all things related to retina and vision science.. Contact: [email protected] ...
Au Coded Hollow Cathode Lumina™Lamp Adapter from PerkinElmer. An essential item from our line of Hollow Cathode Lamp Adapters, Coded Lumina.
Might I preface this by saying i know little to nil regarding cathodes, anodes, and CRTs. Reading the cathode and anode nodes only confused me further, ...
Gold (Au) Lumina Hollow Cathode Lamp from PerkinElmer. Diameter: 50mm (2in). From our full range of Lumina Hollow Cathode Lamps -- Single Element.
Platinum (Pt) Lumina Hollow Cathode Lamp from PerkinElmer. Diameter: 50mm (2in). From our full range of Lumina Hollow Cathode Lamps -- Single Element.
Multi-Element Cu-Fe-Ni Lumina Hollow Cathode Lamp from PerkinElmer. Diameter: 50mm (2in). From our full range of Lumina Hollow Cathode Lamps.
Cu-Fe-Mn-Zn Coded Hollow Cathode Lumina™Lamp Adapter from PerkinElmer. An essential item from our line of Hollow Cathode Lamp Adapters, Coded Lumina.
Multi-Element K-Na Lumina Hollow Cathode Lamp from PerkinElmer. Diameter: 50mm (2in). From our range of Lumina Hollow Cathode Lamps-- Multi Element.
A two channel tube mic pre I designed and built into a completely gutted Dynakit PAS-2 case. B+ is still rectified by a 12X4, the filament supply uses fast recovery diodes. Signal path: Beyerdynamic input transformer, 12AT7 common cathode gain stages, and paralled 12AU7 cathode follwer output (unbalanced transformerless). Not ideal for driving 600ohm loads, but fine for most modern equipment with bridging inputs. Largely wired point to point, external 48V supply. ...
This is a display module with Max7219 Single module can drive an 8 * 8 dot matrix common cathode Module Operating voltage: 5V Module dimensions: length 3.2 cm X ...
This is a display module with Max7219 Single module can drive an 8 * 8 dot matrix common cathode Module Operating voltage: 5V Module dimensions: length 3.2 cm X ...
The half-cell, Tl , Tl+(1 mol L-1), is connected to a Pt , H+ , H2(1 atm) half-cell in which the concentration of H+ is unknown. The measured cell voltage is 0.0841 V and the Pt , H2 , H+ half-cell is the cathode. Standard reduction ...
National Psoriasis Foundation Helps People Live, Work and Play with PsA Portland, Ore. (April 26, 2017) - May is Psoriatic Arthritis Action Month and the National Psoriasis Foundation (NPF) wants to ensure people living with the disease understand the best way to live, work and play with PsA.
AbeBooks.com: Vision Science: Photons to Phenomenology: Quarto in black boards (black spine, white text); illus.; 810 pp., 26 cm. In English. || Association copy from the library of Dr. Donald A. Glaser, inventor of the bubble chamber and recipient of the Nobel Prize in Physics, 1961. Dr. Glasers name stamp is on the upper open corner of the ffep.; Search keyword DGLSR to see dozens of volumes from The Glaser Collection. Contents: An introduction to vision science -- Theoretical approaches to vision -- Color vision : a microcosm of vision science -- Processing image structure -- Perceiving surfaces oriented in depth -- Organizing objects and scenes -- Perceiving object properties and parts -- Representing shape and structure -- Perceiving function and category -- Perceiving motion and events -- Visual selection : eye movements and attention -- Visual memeory and imagery -- Visual awareness -- Appendices : Psychophysical methods -- Connectionist modeling -- Color technology. Very good(+) copy; previous
Original versions of thermal imagers displayed thermal images through the use of black and white cathode ray tubes (CRTs)! Permanent records were possible with
In this day and age, technology most certainly has become an integral part of our life. Modern day technology has undoubtedly made our daily lives much more efficient while bringing us more convenience and flexibility along the way. The evolution of technology has also changed the way we socialize, entertain ourselves, and now quite possibly the way we behave. The existence of video games began approximately 65 years ago. What began as a simple "Cathode Ray Tube Amusement Device" has now transformed itself into modern day video game platforms. These platforms consist of using a personal computer, video game consoles, arcade games, and smartphones as a fundamental requirement to run the video game software. Video games along with modern day technology have now joined forces to create high definition video with high end graphics to deliver a realistic virtual gaming experience. The ultimate gaming experience however, comes with consequence and is now finding itself in the midst of a controversial ...
Pacific University students who are interested in a career in optometry and vision science may choose to complete a pre-optometry and vision science track along with their bachelors degree in preparation for optometry school, such as Pacifics College of Optometry.
Researchers are developing technologies that they hope will put entire computers and large-format screens onto wafer-thin glass, or even plastic that can be rolled up; most promising technology is based on Kodaks organic light-emitting diode, which is less bulky and consumes less power than liquid-crystal displays, technology at heart of most of todays flat screens; photo (M)
Organometallic complexes of iridium have gained importance because of their novelty, reactivity and applications in diverse fields. In this book, the authors present current research in the study of the occurrence, characteristics and applications of iridium. Topics include the synthetic methods of different classes of volatile organometallic and coordination compounds of iridium; homogeneous iridium catalysts in aqueous solution; applications of iridium catalysts in green chemistry; iridium-carbonyl complexes of nitrogen-oxygen and phosphorous-oxygen donor ligands; iridium-catalyzed allylic substitutions; a novel amperometric transducer electrode with iridium-niobium binary alloys; and highly efficient electrophosphorescent organic light-emitting diodes based on iridium (III) complexes containing carbazole units. (Imprint: Nova). ...
Frequency up-conversion is demonstrated in a polyfluorene-based conjugated polymer. Up-converted emission is observed upon excitation to the red of the 0-0 luminescence band. The emission intensity depends strongly on temperature and provides an accurate probe of the operating temperature of organic light-emitting diodes. Temperature rises of up to 30 K are observed at standard operating current densities of 225 mA/cm2. Due to the low thermal conductivity and heat capacity of the polymer film, the temperature of the film is found to rise slowly on a time-scale of seconds. Upon termination of the current, the temperature decreases again on a time-scale of minutes. © 2002 American Institute of Physics ...
Pyrene-cored [5]helicenes were prepared by a facile, efficient Wittig reaction and an intramolecular photocyclization reaction utilising 2,7-di-tert-butylpyrene-4-carbaldehyde and naphthalene/pyrene-based phosphorus ylides. Optical properties based on UV À vis absorption and fluorescence spectra were investigated. X-ray crystallography revealed that the pyrene-based [5]helicenes exhibited strong face-to-face p À p interactions and edge-to-face p À p interactions. HOMO and LUMO energies and molecular orbitals were also studied by density functional theory (DFT) calculations. This study has revealed that the torsion angle of the helical structure plays a role in determining the p À p interactions and the frontier molecular orbital energy levels. Thus, pyrene-based helicenes need to be considered when one designs new highly efficient organic light-emitting diodes and organic semiconductor materials.
Emil J. W. List1,2,* and Norbert Koch3,4,5 1NanoTecCenter Weiz Forschungsgesellschaft m.b.H., Franz-Pichler-Straße 32, A-8160 Weiz, Austria 2Institut für Festkörperphysik, Technische Universität Graz, Petersgasse 16, A-8010 Graz, Austria 3Helmholtz Zentrum Berlin für Materialien und Energie GmbH Elektronenspeicherring BESSY II Albert-Einstein Str. 15, 12489 Berlin, Germany 4Institut für Physik, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 6, D-12489 Berlin, Germany [email protected] *Corresponding author: [email protected] ...
Consider that not so long ago, considerable concern was expressed among optometric educators that our focus on optics was diminishing with the increases in biologic sciences training related to eye disease management responsibilities. Many challenged the NBEO to reflect soberly on student performance in optics on the National Board examinations and some practitioners warned that there was a diminished interest in optics. However, it is now clear that the "new" optics has more, not less, relevance to the practice of optometry than it did just 10 years ago. As a result of new developments in measuring and correcting the aberrations of individual human eyes, two excellent and prophetic editorials in Optometry and Vision Science heralded these changes in optometric and ophthalmologic practice.1,2 Now the modern "new visual optics," the ability to characterize, measure, correct, and even begin to relate the eyes optical aberrations to vision expectations in simple ways beyond the spherical and ...
To access the journal online, American Academy of Optometry Members can access all current content published in Optometry and Vision Science by completing login at the AAO website using the journal link to come back to this site and view content. Click the Current Issue or Previous Issues navigation buttons and select an issue to view full-text article content. ...
... Conference is going to be held from May 14-15 in Singapore. Global optometry 2017 discusses on the
A tubular cathode was prepared by subsequently dipcoating the gas diffusion layer, Pt/C catalyst layer and Nafion membrane on the outside of the tubular Ti mesh. The single direct methanol fuel cell composed of the above electrodes was discussed under normal pressure, and the factors that affected the cell performance were discussed. The results also show that the diffusion layer and catalyst layer prepared by dip coating have mesoporous microstructure which is beneficial to mass transport. With catalyst loading increasing, the cell performance improves. When the Pt loading on cathode is 4.3 mg/cm2, the power density of DMFC reaches 12.3 mW/cm2 at room temperature by using air as the cathode feed. With the oxygen as the cathode feed, the power density of DMFC can reach 40.0 mW/cm2 at 60°C. This indicates that the temperature and oxidant type are as important as the cathode catalyst loading. The stability test of the cell after working for 100 h shows that the tubular cathode has a perfect ...
This is thermoluminescence. Diamond, marble, and fluorite are examples. Only certain varieties of fluorite show the phenomenon well. A crystal of one of these varieties heated in the bunsen flame on an iron spoon will give off a white light long before any trace of redness appears in the iron. Other crystals may luminesce in hot water. In all, this luminescence is dependent on a previous illumination or radiation of the crystal. If kept in the dark for a long time no trace of light appears when fluorite is placed at a temperature of 100°, but after a short exposure to the light of an incandescent bulb, although no light can be observed in the fluorite at room temperature, quite a bright glow appears at 100°. Calcium, barium, strontium, magnesium and other sulphates containing traces of manganese sulphate, show a similar phenomenon after exposure to cathode rays (Wiedemann and Schmidt, 1895 b). They emit light during bombardment, but this soon ceases when the rays are cut off. If the sulphates ...
The https://www.levitradosageus24.com/ generic brand levitra does it work principles of career guidance and planning are the same for everyone..... ...
Profile: Dr Maria Markoulli: Ive been singing in a choir since 2012. At that time, Id just finished my PhD and really craved a musical group environment. Attending my first rehearsal was a bit nerve wracking. Part of me was worried that I would embarrass myself and never come back. But on the contrary, choir turned out to be an amazing experience. I was struck by how inspiring it was to watch a group of people come together and create such beautiful music. They sang so effortlessly and yes, harmoniously. ...
This is the collection for the University of Waterloos School of Optometry and Vision Science .. Research outputs are organized by type (eg. Master Thesis, Article, Conference Paper).. Waterloo faculty, students, and staff can contact us or visit the UWSpace guide to learn more about depositing their research.. ...
An cathode is the terminal from which electrons enter a system. In a device which consumes power the cathode is negative, and in a device which provides power the cathode is positive. In electrolysis, the cathode is the negatively charged electrode, connected to the negative terminal of an electric supply. It attracts positive ions, which then gain electrons at the cathode.. ...
2014 AIP Publishing LLC. The oscillations of free-falling drops with size range from pl to μl have been used to measure the transient shear viscosity and the dynamic surface tension of shear-thinning fluids on the timescale of 10 -5 -10 -2 s. The method is first validated with Newtonian fluids. For a given surface tension, the lower and upper limits for accurate measurement of the viscosity are determined as a function of drop size. The dynamic properties of two types of shear-thinning fluids with varying viscoelasticity are reported: aqueous suspensions of the antifungal drug griseofulvin and of the organic light-emitting diode material poly( 3,4-ethylenedioxythiophene): polystyrene-sulphonate. In both cases, the free-falling drop retains the high-shear viscosity.. ...
This invention relates to a liquid crystal display element comprising a pair of transparent substrates, electrodes formed on the individual surfaces thereof facing each other, a liquid crystal material layer held between the substrates, and gap controlling material for keeping the gap between the substrates, and is characterized in that the gap controlling material is dispersed and fixed on the substrate surface by an insulating coating film such as an orientation controlling film. When the gap controlling material is thus dispersed and fixed, it does not move between the substrates, and hence the change of the gap length between the substrates is prevented, so that there can be obtained a liquid crystal display element in which the distance between the substrates is uniform. Moreover, when the insulating coating film is an orientation controlling film, the dispersion and fixation of the gap controlling material is completed simultaneously with the formation of the orientation controlling film, so that
In an active color liquid crystal display element in which display electrodes are arranged in a matrix form within a liquid crystal cell, color filters of three primary colors are each disposed opposite one of the display electrodes, the color filters of the three colors being distributed substantially uniformly, and a thin film transistor connected to each display electrode is controlled, by switching, in accordance with an input color image signal to charge and discharge the display electrode for displaying a color image, the structures of the thin film transistors are selected corresponding to the color filters of the three primary colors so that substantially the same light transmission-voltage characteristic is provided for all the three color filter portions.
The improvement of LiFePO{sub 4} (LFP) cathode performance has been performed by addition of Graphene (LFP+Graphene). The cathode was prepared from the active material with 5 wt % graphene and 10 wt % polyvinylidene fluoride in an n-methyl pyrrolidone solvent. Another cathode material used only 5% artificial graphite for comparison (LFP+Graphite). The crystal structure, microstructure, electronic conductivity, electrochemical impedance spectroscopy (EIS) of the cathodes were characterized by X-ray diffraction, SEM, and Impedance spectroscopy, respectively. Two half cell coin batteries were assembled using a lithium metal as an anode and LiPf{sub 6} as an electrolyte, and two cathodes (LFP+Graphene) and (LFP+Graphite). Charge discharge performance of battery was characterized by Battery analyser (BTS 8). The electronic conductivity of cathode with grapheme increased of about one order magnitude compared with the only cathode with graphite, namely from 1.97E-7S/cm (LFP+Graphite) to 1.92E-6S/cm ...
Lithium ion batteries (LIB) with high energy density, power density and long charge-discharge life, are considered to be one of the most promising energy storage systems for portable electronic devices as well as electric vehicles applications. Cathode material plays an important role in LIB technology and LiCoO2 is the most widely used cathode materials in LIB technology. Use of LiMn2O4 (LMO) over LiCoO2, as a cathode, has many advantages like natural abundance, environmental friendly, lowest production cost, high reduction potential, good performance, etc. Recently, all-solid-state thin film micro-batteries have attracted more and more interests due to many advantages such as corrosion free, leak proof, ruggedness, long self life, long cycle life, thermal stability, miniaturization, light weight, specific capacity, high power density, etc., and also their potential applications as power sources for micro- and nano-devices such as smart cards, implantable medical devices, complementary metal oxide
Lithium ion batteries are widely used to power portable electronic devices such as cell phones and laptop computers due to their high energy density. However, the currently used layered LiCoO2 cathode could deliver only 50 % of its theoretical capacity in practical lithium ion cells (140 mAh/g) due to the chemical and structural instabilities at deep charge with (1-x) , 0.5 in Li1-xCoO2. Also, cobalt is relatively expensive and toxic. These difficulties have generated enormous interest in alternative cathode hosts. In this regard, solid solutions between layered Li[Li1/3Mn2/3]O2 (commonly designated as Li2MnO3) and LiMO2 (M = Mn, Ni, Co)) have become appealing as some of them exhibit much higher capacity (~ 250 mAh/g on charging to 4.8 V) with lower cost and better safety compared to LiCoO2. This dissertation investigates the (1-z) Li[Li1/3Mn2/3]O2 - (z) Li[Mn0.5-yNi0.5-yCo2y]O2 (y = 1/12, 1/6 and 1/3 and 0.25 ≤ z ≤ 0.75) layered oxide cathodes, which belong to a solid solution series ...
Switching to aflibercept among patients with treatment-resistant neovascular age-related macular degeneration: a systematic review with meta-analysis Kimberly Spooner,1–3 Thomas Hong,1,2 Wijeyanthy Wijeyakumar,1–3 Andrew A Chang1–3 1Sydney Retina Clinic & Day Surgery, 2Sydney Institute of Vision Science, Sydney, 3Save Sight Institute, Department of Ophthalmology, University of Sydney, Camperdown, NSW, Australia Purpose: To systematically review anatomical and functional outcomes subsequent to switching from bevacizumab/ranibizumab to aflibercept monotherapy in patients with treatment-resistant neovascular age-related macular degeneration (nAMD). Design: Systematic review and meta-analysis. Methods: Medline, PubMed, Embase, and Cochrane databases were searched up to July 2016 for available scientific literature which met inclusion criteria. Eligible studies reported visual and anatomical outcomes with at least 6 months of follow-up among patients with nAMD and persistent or
CONTACT LENS SOLUTION MATTERS - This study in Optometry and Vision Science concludes:Ocular comfort and symptoms in symptomatic CL wearers can be perceptibly improved by switching to an
The projection cathode ray tubes can be arranged in various ways. One arrangement is to use one tube and three phosphor (red, ... Main article: Cathode Ray Tube. Though large-screen CRT TVs/monitors exist, the screen size is limited by their impracticality ... This is done to overcome the cathode ray tube size limit which is about 40 inches, the maximum size for a normal direct-view- ... CRT rear-projection television: Small cathode ray tubes create the image in the same manner that a traditional CRT television ...
Accelerators capable of 100 keV are fairly simple to build, even cathode ray tube televisions often reach energies around 20 kV ... Coleman, Lawrence (7 June 1998). "The Cathode-Ray Tube". UC Davis Department of Physics. Maglich 1973, p. 213. Rostoker, N.; ...
"Cathode Ray Tube Phosphors" (PDF). bunkerofdoom.com. Archived (PDF) from the original on 19 January 2013. Retrieved 1 May 2012. ... This material, zinc sulfide silver, is still one of the most efficient phosphors in cathode ray tubes. It is used as a blue ... Cathode ray tubes produce signal-generated light patterns in a (typically) round or rectangular format. Bulky CRTs were used in ... Shionoya, Shigeo (1999). "VI: Phosphors for cathode ray tubes". Phosphor handbook. Boca Raton, Fla.: CRC Press. ISBN 0-8493- ...
Patente E.U.A. 2 251 124: Cathode ray amplifying tube (filed 10 August 1935, issued 29 July 1941) ... Patente E.U.A. 2 139 814: Cathode ray tube (filed 2 November 1936, issued 13 December 1938) ... Patente E.U.A. 2 184 910: Cold cathode electron discharge tube (filed 4 November 1936, issued 26 December 1939) ... Patente E.U.A. 2 228 388: Cathode ray amplifier (filed 6 July 1935, issued 14 January 1941) ...
Cathode ray tubes (used in TVs, computer monitors, ATM, video cameras, and more). Breaking and removal of yoke, then dumping. ... A typical 15-inch cathode ray tube may contain 1.5 pounds of lead,[5] but other CRTs have been estimated as having up to 8 ... Cathode ray tubes (CRTs) are considered one of the hardest types to recycle.[4] ... thus avoiding the expense of removing items like bad cathode ray tubes (the processing of which is expensive and difficult). ...
The IBM 740 Cathode Ray Tube Output Recorder was also available, which is a 21-inch vector display with a very long phosphor ... "IBM Archives: 704 Cathode Ray Tube Output Recorder". Retrieved 10 December 2012. "IBM Archives: IBM 737 Magnetic core storage ... Changes from the 701 include the use of core memory instead of Williams tubes and the addition of three index registers. To ... Like the 701, the 704 uses vacuum tube logic circuitry. ... of the Computer Revolution GM-NAA I/O List of vacuum tube ...
About 8% by weight of cathode ray tubes is strontium oxide, which has been the major use of strontium since 1970. Color ... Méar, F; Yot, P; Cambon, M; Ribes, M (2006). "The characterization of waste cathode-ray tube glass". Waste management. 26 (12 ... color cathode ray tubes sold in the United States are required by law to use strontium in the faceplate to block X-ray emission ... these X-ray emitting TV's are no longer in production). Lead(II) oxide can be used in the neck and funnel, but causes ...
... the primary use for strontium is in glass for colour television cathode ray tubes, where it prevents X-ray emission. This ... "Cathode Ray Tube Glass-To-Glass Recycling" (PDF). ICF Incorporated, USEP Agency. Archived from the original (PDF) on 19 ... Méar, F.; Yot, P.; Cambon, M.; Ribes, M. (2006). "The characterization of waste cathode-ray tube glass". Waste management. 26 ( ... With the displacement of cathode ray tubes by other display methods, consumption of strontium has dramatically declined. ...
Zworykin, V. K. (October 1933). "Television with cathode ray tubes". Journal of the IEE. Institution of Electrical Engineers ( ... the first practical cathode ray tube television camera. Museum of Science and Industry (Chicago) first opens to the public, as ... November 1 - Dijen K. Ray-Chaudhuri, Bengali-born mathematician. December 22 - Thomas Stockham (died 2004), American electrical ...
Physics FAQ The Cathode Ray Tube site Bell, Mary; Green, S. E. (1933), "On Radiometer Action and the Pressure of Radiation", ... The prefix "radio-" in the title originates from the combining form of Latin radius, a ray: here it refers to electromagnetic ... Photophoresis Thermophoresis Marangoni effect Nichols radiometer Solar energy Solar wind Crookes tube Worrall, J. (1982), "The ...
In July 1946, Kilburn and Williams collaboratively developed a storage device based on a Cathode Ray Tube (CRT) called the ... Kilburn, Tom (1990). "From Cathode Ray Tube to Ferranti Mark I". Resurrection. The Computer Conservation Society. 1 (2). ISSN ... With Freddie Williams he worked on the Williams-Kilburn Tube and the world's first stored-program computer, the Small-Scale ... that replaced the vacuum tube diodes with solid state ones. This permitted an order of magnitude increase in the clock rate. To ...
A high vacuum exists within all cathode ray tubes. If the outer glass envelope is damaged, a dangerous implosion may occur. Due ...
The image was built into the tube, hence the name. The tube resembled a small cathode ray tube (CRT). Monoscopes were used ... "TH9503 Character generating cathode ray tube data sheet" (PDF). Compagnie Française Thomson-Houston division tubes ... "CK1414 Symbolray character generating cathode ray tube data sheet" (PDF). Raytheon Company components division, industrial ... Monoscope tubes The Museum of the Broadcast TV Camera, picture and description of the Marconi BD617B portable Monoscope camera ...
Lee, Ching-Hwa; Hsi, C. S. (2002). "Recycling of Scrap Cathode Ray Tubes". Environmental Science & Technology. 36 (1): 69-75. ... was used in black and white television phosphors and in the blue and green phosphors of color television cathode ray tubes. ... This was discovered with X-ray absorption fluorescence spectroscopy (XAFS). The highest concentration of cadmium is absorbed in ...
Philo Taylor Farnsworth refined a version of his picture tube (cathode ray tube, or CRT) and called it an "Iatron". It could ... Cathode-ray tube indicators and appropriate controls were also added. Edwin McMillan was primarily responsible for building and ... Range, azimuth, and elevation were shown on a cathode-ray tube display. There was no provision, however, for feeding this ... A cathode-ray display, made from an oscilloscope, was used to show range information. In July 1940, the new system was ...
In a cathode-ray tube (CRT), such as that for an oscilloscope, a beam of electrons is accelerated by an electromagnet coil ... The technology is discussed in the article Cathode ray tube. An alternative expedient to the electromagnetic deflection of ... around the neck of the tube. The electrons' speed (and therefore energy, and therefore illuminating effect) is proportional to ...
The early meteorologists had to watch a cathode ray tube. During the 1970s, radars began to be standardized and organized into ... using a cavity magnetron or klystron tube connected by a waveguide to a parabolic antenna. The wavelengths of 1 - 10 cm are ...
J. J. Thomson's cathode ray tube experiments (discovers the electron and its negative charge) (1897) ...
The deflection yoke has two sets of coils, perpendicular to each other and to the neck of the cathode ray tube. The coils are ... The cathode ray tube allowed the development of all-electronic television. Electromagnetic deflection yokes are also used in ... A deflection yoke is a kind of magnetic lens, used in cathode ray tubes to scan the electron beam both vertically and ... Compared with electrostatic deflection, magnetic deflection has fewer obstructions inside the tube and so allows for a larger- ...
The zero point would be displayed on the cathode ray tube. The participant would turn the knob in order to keep the indicator ... Early versions of compensatory tracking tasks included a display made of an cathode ray oscilloscope with a rack and pinion ...
In 1897 he built the first cathode-ray tube (CRT) and cathode ray tube oscilloscope. CRT became the cornerstone in developing ... ISBN 0-9631559-0-3. Keller, Peter A.: "The 100th Anniversary of the Cathode-Ray Tube," Information Display, Vol. 13, No. 10, ... Keller, Peter A.: The cathode-ray tube: technology, history, and applications. New York: Palisades Press, 1991. ... The CRT is still called the "Braun tube" in German-speaking countries (Braunsche Röhre) and in Japan (ブラウン管: Buraun-kan). ...
The results appear on a cathode ray tube with circular sweep. This instrument penetrates haze and mist in daylight or darkness ...
Time of flight Mass spectrometry Cathode ray tube Liebl, Helmut (2008). Applied Charged Particle Optics. Berlin Heidelberg: ... einzel lens principle in a simplified form was also used as a focusing mechanism in display and television cathode ray tubes, ... It consists of three or more sets of cylindrical or rectangular apertures or tubes in series along an axis. It is used in ion ... and has the advantage of providing a good sharply focused spot throughout the useful life of the tube's electron gun, with ...
... concept was central to the cathode ray television because of his proposed modification of the cathode ray tube that allowed its ... The cathode-ray tube was the system of electronic television that was subsequently developed in later years, as technology ... When Swinton gave his speech others had already been experimenting with the use of cathode ray tubes as a receiver, but the use ... This was to be done by using cathode ray tubes (CRTs) at both the transmitting and receiving ends. The photoelectric screen in ...
Metallic lead exists in the electrical circuit boards and lead oxide is a component of the cathode ray tubes (CRTs) and is used ... Facilities that store cathode ray tubes (CRT) are particularly contaminated. Soil and dust samples collected at these locations ... "Final Rules on Cathode Ray Tubes and Discarded Mercury-Containing Equipment". U.S. Environmental Protection Agency. Wenzel, ... Minnesota legislation also outlaws the dumping of cathode ray tubes in landfills. A law in the state of Washington took effect ...
Everyday examples of particle accelerators are cathode ray tubes found in television sets and X-ray generators. These low- ... A small-scale example of this class is the cathode ray tube in an ordinary old television set. The achievable kinetic energy ... High-energy X-rays are useful for X-ray spectroscopy of proteins or X-ray absorption fine structure (XAFS), for example. ... In an X-ray generator, the target itself is one of the electrodes. A low-energy particle accelerator called an ion implanter is ...
The tubing from the bag of fluid being administered that connects to directly to the patient is called the primary tubing. Any ... A port (often referred to by brand names such as Port-a-Cath or MediPort) is a central venous line that does not have an ... An X-ray must be used to verify that the tip is in the right place when fluoroscopy was not used during the insertion. More ... Once a medicine has been injected into the fluid stream of the IV tubing, there must be some means of ensuring that it gets ...
Edison Swan (or later Siemens Edison Swan) produced a wide range of vacuum tubes and cathode ray tubes under the names "Ediswan ... In 1956, a new cathode ray tube plant was opened in Sunderland. The company was renamed Siemens Ediswan following the takeover ... which also made light bulbs and electronic tubes under the Mazda brand The Edison and Swan Electric Light Company Limited. ...
Thus, the projection cathode ray tube is capable of reducing the deterioration of the light output with time, by suppressing ... A high-quality projection cathode ray tube is for projecting the image, displayed on a fluorescent surface, as an enlarged ... cathode ray tube is lowered with the operation time is disadvantageously larger than in a projection cathode ray tube having no ... Cathode ray tube with color filters aligned with phosphors. US6071657 *. Jan 28, 1999. Jun 6, 2000. Sony Corporation. Cathode ...
A color cathode-ray tube apparatus has a compensation mechanism for generating a magnetic field that compensates a change in a ... This invention relates to a color cathode-ray tube apparatus, and more particularly to an in-line color cathode-ray tube ... The color cathode-ray tube apparatus also includes an in-line electron gun assembly 4 located in the neck 3 of the funnel 2. ... 1, a color cathode-ray tube apparatus according to a first embodiment has an envelope formed of a panel 1 and a funnel 2 ...
... narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube i... ... Define cathode-ray tube lens: A high-quality, ... cathode-ray tube lens. A high-quality, narrow-angle lens of ... high aperture designed for low magnification in the recording of cathode-ray tube images.. ...
The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor ... a cathode ray tube having an face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ... a cathode ray tube having a face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ... a cathode ray tube having a face glass, said face glass having a convex surface to which are mounted a plurality of phosphor ...
Because of this complexity, conventional cathode ray tubes are much more difficult and expensive to manufacture than tubes ... Whereas the cathode ray tube described above is a twocomponent screen and the accessible colors are limited to a straight line ... For example, a cathode ray tube having a two-component phosphor constructed in accord with the instant invention when excited ... An alternate approach to controlling the emission color of a cathode ray tube is that of the penetron principle such as those ...
Five numerical techniques are presented which permit simulation of cathode-ray tube electron guns with speed and accuracy on a ...
Yes, Its the Cathode-Ray Tube Show! was a British television comedy programme which aired on ITV during 1957. It was produced ... Yes, Its the Cathode-Ray Tube Show! on IMDb. ...
Method of and device for the manufacture of a cathode-ray tube for displaying coloured pictures, as well as cathode-ray tube ... A face panel 52 for a color cathode ray tube is placed on top of the translating jig plate 41, over the cut-out 44. When the ... constructing a cathode ray tube having a viewing screen structure with a field of phosphor elements fabricated in accordance ... xvi) a translating jig plate, having a cut-out therewithin for supporting a face panel of a cathode ray tube, supported on said ...
The frame has a shape conforming to the cathode ray tube so as to be detachably secured to the cathode ray tube. ... A filter to be secured to a cathode ray tube of a display device of an office automation equipment such as a compu- ter or a ... EP0183491A3 - Filter for cathode ray tube - Google Patents. Filter for cathode ray tube Download PDF Info. Publication number. ... The frame has a shape conforming to the cathode ray tube so as to be detachably secured to the cathode ray tube. ...
Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to ... Cathode-ray tube claims struck out by UK court for lack of territorial connection * - United Kingdom ... Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to ... Producers of glass for cathode ray tubes for TV and computer screens settle with a £128m cartel Nabarro LLP ...
... cathode-ray tube explanation free. What is cathode-ray tube? Meaning of cathode-ray tube medical term. What does cathode-ray ... Looking for online definition of cathode-ray tube in the Medical Dictionary? ... cathode ray tube. See Video display unit. cath·ode ray tube. (CRT) (kathōd rā tūb) An evacuated tube containing a beam of ... Related to cathode-ray tube: Colour CRT. cath·ode ray tube (CRT), an evacuated tube containing a beam of electrons that can be ...
hot-cathode roentgen-ray tube answers are found in the Tabers Medical Dictionary powered by Unbound Medicine. Available for ... tube. Hot-cathode Roentgen-ray Tube [Internet]. In: Venes D, editors. Tabers Medical Dictionary. F.A. Davis Company; 2017. [ ... tube. Accessed April 22, 2019.. Hot-cathode roentgen-ray tube. (2017). In Venes, D. (Ed.), Tabers Medical Dictionary. ... "Hot-cathode Roentgen-ray Tube." Tabers Medical Dictionary, 23rd ed., F.A. Davis Company, 2017. Tabers Online, www.tabers.com/ ...
Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display ... of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube ...
Ferdinand Braun and the Cathode Ray Tube The indicator tube developed by "Braun" in the 1890s leasured electrical quantities ...
The Cathode Ray Tube and its Applications. Methods of Construction, and Use as an Oscillograph and as a Wattmeter ...
Thomsons cathode-ray-tube experiment.. Daltons atomic theory.. Rutherfords metal foil experiment ...
Figure 3-2. Cathode Ray Tube Television, ca. 1953. Cathode ray tubes found their greatest use in television sets and computer ... Figure 3-3. Cathode Ray Tube. When high-voltage electricity is applied across the electrodes at either end of the tube, ... Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. Early cathode ray ... Today, cathode ray tubes are being replaced by sleeker flat screen technology. (Unit 3, Section 2) ...
Figure 3-3. Cathode Ray Tube. When high-voltage electricity is applied across the electrodes at either end of the tube, ... Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. Early cathode ray ... By adding mercury to the open end of a J-tube, Boyle increased pressure on air trapped at the closed end of the tube. (Unit 2, ... Two containers of water are connected by a tube. If water is added or removed from one side, water will flow from one side to ...
... known as the Torricellis tube, was invented by Evangelista Torricelli. Today there are two types of barometers: the aneroid ... Who invented the cathode-ray tube?. A: The cathode-ray tube, also called Brauns electrometer, was invented by Ferdinand Braun ... The cathode-ray tube was the technology behind most displa... Full Answer , Filed Under: * Inventions ... A: In 1854, Frenchman Hippolyte Marie-Davey invented the first naval periscope, which was a sight tube made of two mirrors at ...
All written material is copyright © 2007-2019 Cathode Ray Tube and Frank Collins. Cathode Ray Tube is a not for profit ... Cathode Ray Tube by Frank Collins is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 2.0 UK: England & ... CATHODE BLU-RAY ROUNDUP (89) CHANNEL SURFING (30) CLASSIC DOCTOR WHO ARCHIVE (83) COMPETITION (15) CONTINUITY ANNOUNCEMENT (36) ...
Explain the operation of a cathode-ray tube. Describe the deflection of cathode rays by electrically charged pl.... General ...
... not having a picture tube Tubes, parts thereof Cathoderay television picture tubes, color Tubes, parts thereof Cathoderay ... bulbs and tubes) for cathoderay tubes, and glass parts thereof cathoderay tubes or the like ... CRT Monitors Cathode Ray Tube Monitors, works in conjunction with computers . Flat Panel NonCRT monitors including ... IV Jennifer Atlee, Jeremy Gregory, and Randolph Kirchain, 2005, An overview of cathode ray tube recycling ...
A cathode-ray tube in which electrostatic deflection is used on the electron beam Explanation of electrostatic cathode-ray tube ... Find out information about electrostatic cathode-ray tube. ... electrostatic cathode-ray tube. electrostatic cathode-ray tube ... cathode-ray+tube,electrostatic cathode-ray tube,/a,. *Facebook ... A cathode-ray tube in which electrostatic deflection is used on ... Electrostatic cathode-ray tube , Article about electrostatic cathode-ray tube by The Free Dictionary https://encyclopedia2. ...
Cathode Ray Tube. This animation shows how a cathode ray tube works and describes some of the basic science behind the control ...
ATN - Cathode Ray Tube Separation Plant Dry Cutting. End of life televisions have to be recycled. The C(athode) R(ay) T(ube) ... A separate module is available that will allow you to purge aqueous samples onto an adsorbent tube at ambient temperatures. ...
  • Retailers that sell Cathode Ray Tube (CRT) televisions or computer monitors may voluntarily choose to accept CRTs for reuse and recycling or post a DNR-provided sign with the nearest location were CRTs are collected for recycling or reuse. (iowadnr.gov)
  • Cathode ray tubes (CRTs) are considered one of the hardest types to recycle. (archive.org)
  • A filter to be secured to a cathode ray tube of a display device of an office automation equipment such as a compu- ter or a word processor, wherein an electrically conductive filament is stretchedly provided on a frame. (google.com)
  • K hot filament cathode, W tungsten plate. (scribd.com)
  • The cavity magnetron doesn't suffer from the main disadvantages of vacuum tubes - there's no heater filament that can fail, and there's no fragile envelope like the glass envelope found on most familiar vacuum tubes. (slashdot.org)
  • The lens system is designed to be used with a cathode ray tube having a face glass with an aspheric surface having phosphor elements mounted thereto. (google.de)
  • PRE NE ELECTRON ENERGY SENSITIVE PHOSPHORS FOR MU LTI-COLOR CA'I'I-IODE RAY TUBES This invention relates to luminescent materials and more particularly, to methods for preparing phosphor particles containing both luminescent and non-luminescent regions arranged such that the efficiency with which the particles generate light when they are excited by a beam of electrons depends on the energy of those electrons in a controllable manner. (google.ca)
  • a vacuum tube that focuses a beam of electrons onto a spot on a screen coated with a phosphor, creating a visible image of information on the face of the tube. (thefreedictionary.com)
  • The potential damaging effects of electromagnetic fields and very low frequency and extremely low frequency radiation emitted by computer cathode ray tube video display monitors (VDMs) has become a concern within the scientific community. (scielo.br)
  • It provides a comprehensive treatment of applications including lamps and cathode-ray tubes, x-ray and ionizing radiation, and for vacuum fluorescent and field emission displays and covers inorganic and organic electroluminescence materials. (routledge.com)
  • The value is measured for X-ray, ultraviolet, visible, infrared, and radiofrequency radiation emissions were considerably below current threshold limit values or standards and did not represent an occupational hazard to the eyes. (cdc.gov)
  • ABSTRACT: Background In a typical "generic" baghouse application, the cleaning is accomplished by back-flushing the filter with compressed air that travels through an orifice hole in a purge tube (blow pipe) and through a venturi. (environmental-expert.com)
  • A high-quality projection cathode ray tube is for projecting the image, displayed on a fluorescent surface, as an enlarged image on a screen in front of the fluorescent surface through a projection lens disposed at a given distance ahead. (google.com)
  • A high-quality, narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube images. (photonics.com)
  • Four producers of cathode ray tubes used for television and computer screens have agreed to a settlement in response to European Commission allegations of involvement in an EU-wide co-ordinated price cartel between 1999 and 2004. (lexology.com)
  • Main mechanical parts: tube stand, examination table, grid for removing scattered photons (Bucky), X-ray detector: cassette with radiographic film and adjacent fluorescent screens (in radiography) or image intensifier (both on the way out) or flat panel digital detector (in fluoroscopy). (scribd.com)
  • Phosphorescent materials are known for their use in radar screens and glow-in-the-dark materials, whereas fluorescent materials are common in cathode ray tube (CRT) and plasma video display screens, fluorescent lights , sensors, and white LEDs . (wikipedia.org)
  • Thus, the projection cathode ray tube is capable of reducing the deterioration of the light output with time, by suppressing the browning phenomenon of the glass surface of the face panel and the multilayer optical interference film. (google.com)
  • A CT system includes a gantry, an x-ray source, a generator configured to energize the x-ray source to a first kVp and to a second kVp, a detector, and a controller. (freepatentsonline.com)
  • Inside the CRT, a tightly focused beam of electrons, steered by electromagnets, hits a detector on the inside face of the tube, which glows and creates the image as the beam is scanned quickly across and up and down over the detector. (learner.org)
  • A Guide to Gas Detector Tubes. (environmental-expert.com)
  • Gas detector tubes are easy to use, are low cost, and the method is intrinsically safe, allowing it to be deployed in all industries. (environmental-expert.com)
  • Sony Electronics Incorporated's San Diego Manufacturing Center (SDMC), home of the Trinitron picture-tube and color television set assembly, is a 1994 Best Plants award winner. (industryweek.com)
  • The cathode ray tube, prematurely pronounced dead on many occasions, was the subject of an international symposium at SCHOTT, Europe's biggest television glass manufacturer. (schott.com)
  • In an evacuated glass tube, objects fall at the same rate independent of their size, shape, and mass. (wisc.edu)
  • Engelbart was cited for this award for his role in creating the foundations of personal computing, including continuous real-time interaction based on cathode-ray tube displays and the mouse, hypertext linking, text editing, online journals, shared screen teleconferencing, and remote collaborative work. (thefreedictionary.com)
  • Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. (learner.org)
  • Today, cathode ray tubes are being replaced by sleeker flat screen technology. (learner.org)
  • A larger screen size requires a longer tube, making a CRT television with a large screen (50 to 80 inches) unrealistic because of size. (wikipedia.org)
  • Lite Array is a California-based company that, for the past few years, has been a pioneer in the research and development of thin film electroluminescent (TFEL) and organic light emitting diode (OLED or OEL) flat-panel, solid-state displays which possess performance characteristics superior to conventional cathode-ray tube (CRT) or liquid-crystal displays (LCD) principally in terms of resolution, brightness, and durability. (thefreedictionary.com)
  • The flat cathode may consist of a cermet or amorphic diamond. (google.co.uk)
  • The flat cathode may consist of a cermet or amorphic diamond or some other combination of a conducting material and an insulating material such as a low effective work function material. (google.co.uk)
  • The Dell 1900FP greatly improves viewing area compared with traditional 19-inch cathode-ray tube (CRT) monitors, and allows for viewing angles of up to 85 degrees from all sides of the monitor. (thefreedictionary.com)
  • Implementation of Helios Tube Cleaning System improves chiller efficiency by 8% and reduces energy consumption by over 2 million kW -hrs.Helios BACKGROUND In December 2014, VCU Medical Center in Richmond, VA installed Innovas Technologies' Helios Tube Cleaning System on a 1200 -ton Trane chiller identified as N. Hospital Chiller #1. (environmental-expert.com)
  • The large majority of protein structures are determined by x-ray crystallography, where measured diffraction data are used to derive a molecular model. (sciencemag.org)
  • A separate module is available that will allow you to purge aqueous samples onto an adsorbent tube at ambient temperatures. (environmental-expert.com)
  • A liquid thermometer works by using the thermal expansion of a liquid within a capillary tube to measure temperature. (reference.com)
  • In 1854, Frenchman Hippolyte Marie-Davey invented the first naval periscope, which was a sight tube made of two mirrors at 45-degree angles. (reference.com)
  • The major application areas of coiled tubing includes wellbore cleaning, well stimulation, logging, nitrogen pumping, perforations and drilling. (environmental-expert.com)