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.
Bioelectric Energy Sources
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.
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.
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.
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
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.
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.
Hepatitis, Infectious Canine
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.
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.
[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)(+info)
Detection of changes in luminance distributions. (3/6)(+info)
Temporal properties of liquid crystal displays: implications for vision science experiments. (4/6)(+info)
Assessment of age changes and repeatability for computer-based rod dark adaptation. (5/6)(+info)
Evaluation of an organic light-emitting diode display for precise visual stimulation. (6/6)(+info)
Patent US3289196 - Cathode ray tube display with means for recording the tube display - Google Patents
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. ...
ORGANIC LIGHT-EMITTING DIODE, ORGANIC LIGHT-EMITTING DIODE SUBSTRATE, AND METHOD OF MANUFACTURING SAME - Patent application
1. An organic light-emitting diode produced from an organic light-emitting diode substrate in which a concave-convex structure is provided in at least a part of a surface, wherein the concave-convex structure is capable of obtaining an atomic force microscope image in which a plurality of dots are dispersed when observed by an atomic force microscope, wherein the organic light-emitting diode is produced by a method comprising: measuring a diameter of each of the plurality of dots present in a randomly selected region having an area of 25 μm2 on the atomic force microscope image; obtaining a frequency distribution from a number of dots having a diameter corresponding to each of sections obtained by partitioning a diameter range for each 20 nm; calculating a total area of dots, which are present in each of the sections from the frequency distribution; and creating a histogram in which the total area is shown in a Y-axis and the diameter of the dot is shown in an X-axis, the histogram has a ...
DIY Cathode Ray Tube: Interacting With Electrons : 12 Steps (with Pictures) - Instructables
DIY Cathode Ray Tube: Interacting With Electrons: Electrons: they are all around us, but we cannot really see or interact with them. Luckily, there is a device that will let you. A cathode ray tube, or CRT, is a glass tube with electrodes on either end. When there is a vacuum drawn and a high vo…
Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display...
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 ...
Similarities and differences of alkali metal chlorides applied in organic light-emitting diodes<...
TY - JOUR. T1 - Similarities and differences of alkali metal chlorides applied in organic light-emitting diodes. AU - Lü, Zhaoyue. AU - Deng, Zhenbo. AU - Hou, Ying. AU - Xu, Haisheng. N1 - Funding Information: We thank the Science and Technology Commission of Suzhou Municipality (contract no. ZXG2012037 ) and the National Natural Science Foundation of China (contract nos. 60977027 and 91123034 ) for financially supporting this work. PY - 2012/12/15. Y1 - 2012/12/15. N2 - The similarities and differences of alkali metal chlorides (sodium chloride (NaCl), potassium chloride (KCl), rubidium chloride (RbCl) and cesium chloride (CsCl)) applied in organic light-emitting diodes (OLEDs) are investigated. The behavior is similar for the OLEDs with these four chlorides as electron injection layer (EIL). Their maximum luminance and efficiency at 100 mA/cm 2 are within the ranges of 18 550 ± 600 (cd/m2) with an error of 3.23% and 4.09 ± 0.15 (cd/A) within an error of 3.67%, respectively. The similar ...
Organic light-emitting diodes with an electro-deposited copper(I) thiocyanate (CuSCN) hole-injection layer based on aqueous...
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 ...
Patent US4824224 - Lens system for a cathode ray tube projection system - Google Patentsuche
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.
Flexible organic light-emitting diode - Wikipedia
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 ...
organic light-emitting diode with polyvinylpyrrolidone-passivated vanadium oxide film after UV-O3 treatment as hole transport...
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
TTPPCCuI-based organic light-emitting diode
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
Management of excitons for highly efficient organic light-emitting diodes with reduced triplet exciton quenching: synergistic...
Non-doped architecture has achieved great success as a universal method for simplifying the structure of organic light-emitting diodes (OLEDs). Currently, great challenges remain in the quest to further enhance the efficiency and reduce the pronounced roll-off for ultrathin emitting layer (UEML) based device
2,7-Bis(diarylamino)-9,9-dimethylfluorenes as Hole-Transport Materials for Organic Light-Emitting Diodes<...
TY - JOUR. T1 - 2,7-Bis(diarylamino)-9,9-dimethylfluorenes as Hole-Transport Materials for Organic Light-Emitting Diodes. AU - Hreha, Richard D.. AU - George, Candace P.. AU - Haldi, Andreas. AU - Domercq, Benoit. AU - Malagoli, Massimo. AU - Barlow, Stephen. AU - Bredas, Jean-Luc. AU - Kippelen, Bernard. AU - Marder, Seth R.. PY - 2003/12/1. Y1 - 2003/12/1. N2 - 2,7-Bis(p-methoxyphenyl-m′-tolylamino)-9,9-dimethylfluorene (1′), 2,7-bis(phenyl-m′-tolylamino)-9,9-dimethylfluorene (2′) and 2,7-bis(p-fluorophenyl-m′-tolylamino)-9,9-dimethylfluorene (3′) have been synthesized using the palladium-catalyzed reaction of the appropriate diarylamines with 2,7-dibromo-9,9-dimethylfluorene. These molecules have glass-transition temperatures 15-20 °C higher than those for their biphenyl-bridged analogues, and are 0.11-0.14 V more readily oxidized. Fluorescence spectra and fluorescence quantum yields for dimethylfluorene-bridged and biphenyl-bridged species are similar, but the peaks of the ...
Aromatic imide/amide-based organic small-molecule emitters for organic light-emitting diodes - Materials Chemistry Frontiers ...
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
Image Performance in CRT Displays | (2003) | Compton | Publications | Spie
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) ...
Cathode Ray Tube: ASHES TO ASHES - Series 3: Episode Six / Review
This game between Gene and Jim, for that is the implication with the symbolic object of the football, is about following or bending the rules. In the Ashes To Ashes universe these games are about anarchy versus order, from Genes unpremeditated assumption of control over the riot to Keats premeditated by the book attempts to use his colleagues to undermine him as well as, having foreknowledge of Vivs fate (he whistles the Bubbles tune as he leaves Genes domain). Gene also counters Keats desire to see him fail with the visitor records to the prison, suggesting Keats is causally linked to the riots. Tit for tat, again. There is also Alexs strange dream of Chris, Shaz and Ray all sitting round a table in a field (rather like a family) unwrapping a present or a parcel. A bit like the childrens game of pass the parcel, it is revealed to be the tin box that is then found in Paul Thordys possessions and in the desk drawer in Genes office. Each opening of the box reveals a clue and it ...
Patent US4176925 - Laser scanner for photolithography of slotted mask color cathode ray tubes - Google Patents
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 ...
Brevet US3789833 - Heart examination by means of ultrasound waves - Google Brevets
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.
Brevet US5534125 - DNA sequencing - Google Brevets
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.
Patent US2668286 - Moving object selective detection system - Google Patents
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 ...
Patent US3752914 - Method and apparatus for making a color strip map of thermal variations - Google Patents
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 Create Carbon Nanotube-based Light Source that Behaves Like Cathodes Ray Tubes
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.
Cathode Ray Tube: DOCTOR WHO: The Time of the Doctor / Review
DOCTOR WHO: THE PANDORICA OPENS (2010). A worthy addition to serious texts on Doctor Who - Doctor Who Magazine 431, February 2011 an impressive work, imbued with so much analytical love and passion, and is an absolute must-read for any fan N. Blake - Amazon 4/5 stars ...mixes the intellectual and the emotional very well...its proper media criticism 9/10 - The Medium Is Not Enough ... an up-to-date guide that isnt afraid to shy away from the more controversial aspects of the series 8/10 - Total SciFi Online ...well-informed new angles on familiar episodes... this is a great read from start to finish - Bertie Fox - Amazon 4/5 stars Frank Collins has produced a book that is fiercely idiosyncratic, displays a wide-ranging intellect the size of a planet, but which is also endearingly open and inclusive in its desire to share its expansive knowledge... 4/5 - Horrorview.com The book is great! It makes you think, it makes you work. It encourages you to go back and watch the series with a ...
Gadolinium - Simple English Wikipedia, the free encyclopedia
Gadolinium is a chemical element. It has the chemical symbol Gd. It has the atomic number 64. It is part of a group of chemical elements in the periodic table named the Lanthanides. It is a rare earth element. It is silvery white, malleable and ductile. Its main uses are as chemical compounds in color televisions and nuclear magnetic resonance radio contrast agents. In color cathode ray tube televisions (the type first produced, not flat televisions) some of the pixels are dots gadolinium compounds. When the electrons from the cathode ray tube hit the pixels and transfer energy to the gadolinium compounds they give out light as energy. Nuclear magnetic resonance (NMR) imaging is used in medicine where it is named MRI (Magnetic resonance imaging). It is used to take picture of inside the body. How the pictures look is changed by the gadolinium compounds and how much water is around. It makes the images clearer because it makes the difference in the concentration of water in different parts of the ...
European Cathode Ray Tube Cartels
FCMD tracks contractor misconduct, including fraud, poor performance, and noncontract violations, in order to improve transparency and public awareness of how Uncle Sam spends billions annually.
Patent US3664862 - Electron energy sensitive phosphors for multi-color cathode ray tubes - Google Patents
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.
Subthalamic nucleus local field potential activity helps encode motor effort rather than force in parkinsonism. - Nuffield...
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
Light-emitting diodes fabricated from biomolecular compounds<...
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; ...
ORGANIC LIGHT-EMITTING DIODE LUMINAIRES - Patent application
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); ...
Molecular self-assembly approaches to multilayer organic light-emitting diode structures - Fingerprint - University of...
Joshua E. Malinsky, Weijin Li, Homer Chou, Wuping Ma, Lifeng Geng, Tobin J. Marks, Ghassan E. Jabbour, Sean E. Shaheen, Bernard Kippelen, Nasser Peyghambarian, Pulak Dutta, Andrew J. Richter, Neal R. Armstrong, Paul A. Lee, Jeffrey D. Anderson ...
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Combinatorial fabrication and study of white organic light-emitting devices based on non-doping ultrathin 5,6,11,12...
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 ...
Organic light-emitting device comprising buffer layer and method for fabricating the same - Noh, Jeoung Kwen
Disclosed herein are an organic light-emitting device having a structure formed by the sequential deposition of a substrate, a first electrode, at least two organic layers and a second electrode, in w
JoVE Author Search: Ilea P
Alloys, Cathode, Cathode Ray, Cathode Ray Tubes, Electrodeposition, Electron, Electron Microscopy, Fluorescence, Microscopy, PH, Scanning Electron Microscopy, Solutions, X-ray
J. J. Thomson - Wikipedia
Several scientists, such as William Prout and Norman Lockyer, had suggested that atoms were built up from a more fundamental unit, but they envisioned this unit to be the size of the smallest atom, hydrogen. Thomson in 1897 was the first to suggest that one of the fundamental units was more than 1,000 times smaller than an atom, suggesting the subatomic particle now known as the electron. Thomson discovered this through his explorations on the properties of cathode rays. Thomson made his suggestion on 30 April 1897 following his discovery that cathode rays (at the time known as Lenard rays) could travel much further through air than expected for an atom-sized particle. He estimated the mass of cathode rays by measuring the heat generated when the rays hit a thermal junction and comparing this with the magnetic deflection of the rays. His experiments suggested not only that cathode rays were over 1,000 times lighter than the hydrogen atom, but also that their mass was the same in whichever ...
Innovative pattern reversal displays for visual electrophysiological studies<...
TY - GEN. T1 - Innovative pattern reversal displays for visual electrophysiological studies. AU - Toft-Nielsen, J.. AU - Bohorquez, Jorge. AU - Ozdamar, Ozcan. PY - 2011/12/26. Y1 - 2011/12/26. N2 - Pattern Reversal (PR) stimulation is a frequently used tool in the evaluation of the visual pathway. The PR stimulus consists of a field of black and white segments (usually checks or bars) of constant luminance, which change phase (black to white and white to black) at a given reversal rate. The Pattern Electroretinogram (PERG) is a biological potential that is evoked from the retina upon viewing PR display. Likewise, the Pattern Visual Evoked Potential (PVEP) is a biological potential recorded from the occipital cortex when viewing a PR display. Typically, PR stimuli are presented on a Cathode Ray Tube (CRT) or Liquid Crystal Display (LCD) monitor. This paper presents three modalities to generate pattern reversal stimuli. The three methods are as follows: a display consisting of array of Light ...
Patente US5488571 - Method and apparatus for downloading information from a controllable light ... - Google Patentes
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
Vision Science: Photons to Phenomenology by Palmer, Stephen E.: MIT Press, Cambridge, Mass Hardcover - Owl & Company Bookshop ...
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
Did You Know… | Thermal Imaging Blog from Fluke Thermography
Original versions of thermal imagers displayed thermal images through the use of black and white cathode ray tubes (CRTs)! Permanent records were possible with
Best Health - Page 2 - Jaynes Better Health
Are Computers Bad For Health? Love them or hate them, computers are essential in most things we do. They can provide hidden dangers, however. With the old type of screen with the cathode ray tube, the electrons would emit electromagnetism which is not good for health. They are very rare these days and the flat screens dont carry this risk. Excessive computer work can still damage your health. The blue light of a computer monitor and other digital devices, like televisions…. ...
Research Paper Video Games Leading to More Violence? - 3153 Words
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 ...
Pre-Optometry & Vision Science | Pacific University
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.
A Combined Study of Mesomorphism, Optical and Electronic Properties of by Shuai Chen
Columnar mesophases of discotic liquid crystals (DLCs) are a separate class of organic semiconductors. Anisotropic charge transport, high charge carrier mobility, and self-organizing properties have been regarded as superior properties of DLCs but their performance in devices, such as organic light-emitting diodes, has been inferior to the best performing conventional organic semiconductors. Our group recently demonstrated that a DLC of donor-acceptor structure can bias electron over hole conduction if the occupied and unoccupied frontier orbitals are localized on different parts of the molecule and only the unoccupied frontier orbitals electronically interact in columnar stacks. This thesis describes the first systematic approach to different types of donor-acceptor DLCs and the investigation of their mesomorphism and optoelectronic properties. In spite of their large aspect ratios, four board-shaped donor-acceptor-donor quinoxalinophenanthrophenazine (QPP) dyes (Chapters 2 and 3) induce complex
E-Commerce Report; Liquid-crystal display screens may one day face competition from skinny, roll-up screens. - The New York...
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)
Iridium: Occurrence, Characteristics and Applications - Nova Science Publishers
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). ...
Synthesis, Structure and Photophysical Properties of Pyrene-based Helicenes: an Experimental and Theoretical Study
Pyrene-cored 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 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.
Frequency up-conversion as a temperature probe of organic opto-electronic devices
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. Â© 2002 American Institute of Physics ...
OSA | Focus Issue: Organic light-emitting diodes-status quo and current developments
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] ...
The New Visual Optics : Optometry and Vision Science
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 ...
global optometry and vision science
Global Optometry and Vision Science Conference is going to be held from May 14-15 in Singapore. Global optometry 2017 discusses on the
March 2016 - Volume 93 - Issue 3 : Optometry and Vision Science
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. ...
OSA | Real-world stimuli show perceived hue shifts in the peripheral visual field
Neil R. A. Parry,1,* Athanasios Panorgias,2,4 Declan J. McKeefry,3 and Ian J. Murray2 1University of Manchester Health Science Research Centre and Vision Science Centre, Manchester Royal Eye Hospital, Manchester M13 9WH, UK 2Faculty of Life Sciences, Carys Bannister Building, The University of Manchester, Manchester M13 9PT, UK 3Bradford School of Optometry & Vision Sciences, University of Bradford, Bradford BD7 1DP, UK 4Current address: Department of Ophthalmology and Vision Science, University of California, Davis, Sacramento, California 95817, USA *Corresponding author: [email protected] ...
Preparation and cell performance of tubular cathode for direct methanol fuel cell - ePrints - Newcastle University
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 ...
Lateral Science: LUMINESCENCE & INCANDESCENCE by E. Newton Harvey, 1920
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 ...
TFOS DEWS II Epidemiology Report | Optometry & Vision Science | University of Waterloo
The subcommittee reviewed the prevalence, incidence, risk factors, natural history, morbidity and questionnaires reported in epidemiological studies of dry eye disease (DED). A meta-analysis of published prevalence data estimated the impact of age and sex. Global mapping of prevalence was undertaken. The prevalence of DED ranged from 5 to 50%. The prevalence of signs was higher and more variable than symptoms. There were limited prevalence studies in youth and in populations south of the equator. The meta-analysis confirmed that prevalence increases with age, however signs showed a greater increase per decade than symptoms. Women have a higher prevalence of DED than men, although differences become significant only with age. Risk factors were categorized as modifiable/non-modifiable, and as consistent, probable or inconclusive. Asian ethnicity was a mostly consistent risk factor. The economic burden and impact of DED on vision, quality of life, work productivity, psychological and physical ...
Visual Illusions | Vision Science and Advanced Retinal Imaging Laboratory
The https://www.levitradosageus24.com/ generic brand levitra does it work principles of career guidance and planning are the same for everyone..... ...
News | School of Optometry and Vision Science
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. ...
Optometry and Vision Science
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.. ...
Optometry and Vision science
Meet leading Scientists, Professors, Researchers, Partial Neuro Opthalmology Doctors, Scientists, Directors of Neuro Opthalmology companies, Neuro Opthalmology Researchers from London UK
Twig USA - Cathode
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.. ...
Mercury (Hg) Atomax Hollow Cathode Lamp | PerkinElmer
Single Element Atomax hollow cathode lamp (HCL) for the detection of elemental Mercury (Hg).. 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.. ...
Tellurium (Te) Atomax Hollow Cathode Lamp | PerkinElmer
Single Element Atomax hollow cathode lamp (HCL) for the detection of elemental Tellurium (Te).. 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.. ...
NOPR: Synthesis and characterization of LaCoO₃ based cathode and its chemical compatibility with CeO₂ based electrolytes for...
The use of alternate cathode materials with improved performance and without any chemical reaction with adjoining electrolyte is required for a reduction in operating temperature of SOFC from 1273 K to about 1073 K (ITSOFC). Cobalt containing perovskite oxides such as LaCoO₃ tend to exhibit a higher ionic conductivity due to a greater concentration of oxygen vacancies than other perovskite oxides. The mixed ionic and electronic conducting cathode of the La₁₋xSrxCoO₃₋δ systems has shown the lowest cathodic overpotential for an SOFC air electrode. In this research work, fine powders of La₀․₇₀Sr₀․₃₀CoO₃₋δ (LSC) cathode and Ce₀․₉₀Gd₀․₁₀O₂₋δ (GDC) and Ce₀․₈₀Sm₀․₂₀O₂₋δ (SDC) are synthesized by glycine nitrate combustion synthesis and systematically characterized by XRD and particle characteristics. The electrical properties of LSC cathode and GDC and SDC electrolytes are also studied. But, the crucial requirement for ...
American Manganese Sends Sample from RecycLiCo Process to International Cathode Manufacturer | Prospector NewsProspector News
RecycLiCo™ Sample Outperformed Commercial Grade Cathode Precursor Purity American Manganese Inc. (TSX-V: AMY) (OTCQB: AMYZF) (FSE: 2AM) a pioneer in advanced lithium-ion battery cathode recycling, is pleased to report that the recycled product, produced from recycled NCA (lithium-nickel-cobalt-aluminum oxide) cathode waste has been shipped to an international cathode manufacturer for the …
Patente US4790914 - Electrolysis process using concentric tube membrane electrolytic cell - Google Patentes
The invention is a method for operating a vertically disposed, electrolytic cell of the type having: a hydraulically permeable, hollow, cylindrically shaped cathode; a hydraulically permeable, hollow, cylindrically shaped anode concentric with and surrounding said cathode to define an annular space therebetween; and a hollow, cylindrically shaped, ion permeable membrane interposed between, and concentric with, said cathode and said anode, said membrane separating and defining an anode compartment containing the anode and a cathode compartment containing the cathode; wherein said process comprises: (a.) flowing a catholyte from a lower portion of the cathode compartment, upward toward the upper portion of the cathode compartment, at least a portion of said flow passing adjacent to the cathode at a rate sufficient to sweep away at least a portion of any gas, formed during electrolytic operation of the cell; wherein at least a portion of said catholyte flow is through the annular space between the cathode
DNP Clarifies Optical Principle for Measurement of Display Sparkle Contrast | Whats New | DNP Group
In order to reduce annoying reflection of ambient light, anti-glare film has been developed and applied to electronic displays, such as PCs and smartphones.. However, as a side-effect of applying anti-glare film, sparkle pattern becomes obvious as fine and irregular luminance distribution caused by the combination of uneven surface-structure of anti-glare film and display matrix structure.. In the past, the degree of sparkle was evaluated visually by skilled personnel based on professional experience, but individual differences affected the reproducibility of the results. Furthermore, there was another problem regarding how to quantify the measurement results.. This led to a series of developments in the market of quantitative sparkle measurement methods, i.e. measurement of display sparkle contrast.. However, even with the same sample, it has been difficult to get reliable and quantitatively comparable data from different parties. This is largely because the measurement parameters from each ...
THE VISION REVOLUTION...
Buy the book at Amazon. German, Korean, Japanese. Praise for THE VISION REVOLUTION: Made Best Books of 2009 story. -- New Scientist. Among Best of the Year books. ...this book is indispensable. -- Daniel Piza, Estadao, Aug, 2010. I think Vision Revolution is one of the best works of theoretical vision science since Gibson. --…
The development of protocols and norms for sports vision evaluations | Buys | African Vision and Eye Health
The African Vision and Eye Health journal publishes original peer-reviewed papers of scientific and clinical research in optometry, ophthalmology, vision science and other related fields.
vision problems in albinos - Webvision
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] ...
Courses | RIT Center for Imaging Science
Special Topics courses for 2017-2018. IMGS-789-01 Robot Vision (Fall 2181). Special Topics courses for 2016-2017. IMGS-789-01 Deep Learning for Vision (Fall 2161). IMGS-789-01 Modern Astronomical Imaging (Spring 2165). IMGS-789-02 Introduction to Radiative Transfer In Media (Spring 2165). IMGS-789-03 Optical Components, System Design and Performance (Spring 2165). Special Topics courses for 2015-2016:. IMGS-789-01 Introduction to Radiative Transfer in Media (Spring 2155). IMGS-789-02 Interactive Virtual Environments (Spring 2155). IMGS-789-03 Optical Component, System Design and Performance (Spring 2155). Special Topics courses for 2014-2015:. IMGS-789-01 Introduction to Radiative Transfer in Media (Fall 2141). IMGS-789-01 Advanced Topics in Radiative Transfer in Media (Spring 2145). IMGS-789-02 Eye-tracking Methods (Spring 2145). IMGS-789-03 Optical Component, System Design and Performance Evaluation (Spring 2145). IMGS-789 Vision Science Seminar. Suggested Graduate Courses Offered Outside of ...
Visual Perception, The Minds Eye, And Change Blindness
The other day I mentioned that Ive been studying visual cognition, and in particular Ive been reading Vision Science: Photons To Phenomenology, by Stephen
Glen McCormack, OD, PhD, Professor of Optometry
Dr. McCormack, a professor of optometry in the Vision Science Department, has been a faculty member at the college since 1976. He teaches Binocular Vision and Ocular Motility and co-teaches Binocular and…
The African Vision and Eye Health journal publishes original peer-reviewed papers of scientific and clinical research in optometry, ophthalmology, vision science and other related fields.
shadow-mask cathode-ray tube | Encyclopedia.com
Source for information on shadow-mask cathode-ray tube: A Dictionary of Computing dictionary. ... shadow-mask cathode-ray tube A type of cathode-ray tube that has a perforated mask between the electron guns and the phosphor- ... Gamma Rays , gamma rays Cathode-ray Tube , cathode ray Radiation emitted by the cathode of a thermionic electron valve ... shadow-mask cathode-ray tube A type of cathode-ray tube that has a perforated mask between the electron guns and the phosphor- ...
Cathode-ray tube - Wikipedia
"Cathode ray tube color screen and method of producing same". "The Cathode Ray Tube site, Cathode Ray Tubes". www.crtsite.com. " ... "Colour cathode ray tube". "In-line electron gun structure for color cathode ray tube having oblong apertures". "Cathode ray ... "Samsung 4FNG45 4" Flat Display Picture Tube". lampes-et-tubes.info. "The Cathode Ray Tube site, Radar tubes". The Cathode Ray ... "Flat tension mask type cathode ray tube". "Cathode ray tube with bracket for mounting a shadow mask frame". "Color cathode ray ...
Patent US5126626 - Projection cathode ray tube - Google Patents
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 ...
Patent US6686688 - Color cathode-ray tube apparatus - Google Patents
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 ...
Cathode-ray tube amusement device - Wikipedia
The cathode-ray tube amusement device consists of a cathode ray tube connected to an oscilloscope with a set of knobs and ... US patent 2455992, Goldsmith Jr., Thomas T. & Mann, Estle Ray, "Cathode Ray Tube Amusement Device", issued 1948-12-14 Blitz, ... The cathode-ray tube amusement device was invented by physicists Thomas T. Goldsmith Jr. and Estle Ray Mann. The pair worked at ... This makes the cathode-ray tube amusement device a forerunner to other games in the early history of video games. As the device ...
cathode-ray tube lens | Photonics Dictionary® | Photonics Marketplace
... 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.. ...
Patent US4824224 - Lens system for a cathode ray tube projection system - Google Patentsuche
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 ...
Simulation of cathode-ray tube electron guns on a medium-sized computer - IEEE Journals & Magazine
Cathode-ray tube | definition of cathode-ray tube by Medical dictionary
... 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 | Taber's Medical Dictionary
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/ ...
Safety Q and A: Cathode Ray Tubes | STAO
DIY Cathode Ray Tube: Interacting With Electrons : 12 Steps (with Pictures) - Instructables
A cathode ray tube, or CRT, is a glass tube with electrodes on either end. When there is a vacuum drawn and a high vo… ... DIY Cathode Ray Tube: Interacting With Electrons: Electrons: they are all around us, but we cannot really see or interact with ... how does a cathode ray tube work?. A cathode ray tube consists of a ray going from the cathode to the anode, and it is made up ... but these cathode ray tubes as screens are a little bit more complicated than the simple cathode ray tube that we are going to ...
Increased micronucleated cell frequency related to exposure to radiation emitted by computer cathode ray tube video display...
How Cathode Ray Tube TVs Work - GoldPundit™.com
Cathode Ray Tube. While experimenting with the Crookes tube, Crookes noticed that when a phosphor was placed at the end of the ... So, that is the cathode ray tube. Most of the circuitry in a CRT goes to powering the tube, the coils, and the signal ... Cathode ray tubes need to have a vacuum inside them; there need to be very small amounts of air molecules within. So, before ... Cathode Ray Tubes were the display technology for around seventy years. Their rule spanned from 1934, when Telefunken released ...
Cathode Ray Tube: GREY GARDENS - HBO DVD Review
All written material is copyright © 2007-2020 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 Ray Tube Grey Gardens Drew Barrymore and Jessica Lange Big Edie And Little Edie. ... CATHODE BLU-RAY ROUNDUP (90) CHANNEL SURFING (30) CLASSIC DOCTOR WHO ARCHIVE (83) COMPETITION (15) CONTINUITY ANNOUNCEMENT (36) ...
March 1974 - Scientific American
August 25, 1917 - Scientific American
The current model of the atom in which essentially | bartleby
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 ...
Who invented the barometer? | Reference.com
... 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 ...
Which of Einstein's postulates of special relativity | bartleby
Electrostatic cathode-ray tube | Article about electrostatic cathode-ray tube by The Free Dictionary
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. ...
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Large-screen television technology - Wikipedia
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 ...
Glossary - c
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AnodeElectronsOscilloscopePhosphorFerdinand BraunRaysFluorescentCRTs1897Vacuum tubesFilamentDeflectionBeamsTelevisionsWilliam CrookesDiodeRadiationTargetsTelevisionParticleMoleculesPhosphorsBraunCapillary tubeAbstractLensColorInventionGeneratorDisplayDetectorScreenTypeElectrodes at eitherTest tubesGlass chamberGeisslerImprovesFlatExplainVideoTransistorTechnology
- citation needed] The introduction of hot cathodes allowed for lower acceleration anode voltages and higher electron beam currents, since the anode now only accelerated the electrons emitted by the hot cathode, and no longer had to have a very high voltage to induce electron emission from the cold cathode. (wikipedia.org)
- A cathode ray tube consists of a ray going from the cathode to the anode, and it is made up of electrons. (instructables.com)
- The cathode, because it has a negative high voltage with respect to the anode, will have a large amount of electrons on it. (instructables.com)
- When high-voltage electricity is applied across the electrodes at either end of the tube, electrons are knocked off gas molecules inside the evacuated tube and travel toward the positive anode. (learner.org)
- A matrix addressable flat panel display includes a flat cathode operable for emitting electrons to an anode when an electric field is produced across the surface of the flat cathode by two electrodes placed on each side of the flat cathode. (google.co.uk)
- An electric field produced between the anode and the cathode causes these electrons to bombard a phosphor layer on the anode. (google.co.uk)
- It is directly proportional to the voltage U across the , anode and cathode. (scribd.com)
- The energy of the individual photons can be increased by increasing the voltage between the anode and cathode. (scribd.com)
- A CRT works by electrically heating a tungsten coil which in turn heats a cathode in the rear of the CRT, causing it to emit electrons which are modulated and focused by electrodes. (wikipedia.org)
- In 1897, J. J. Thomson succeeded in measuring the charge-mass-ratio of cathode rays, showing that they consisted of negatively charged particles smaller than atoms, the first "subatomic particles", which had already been named electrons by Irish physicist, George Johnstone Stoney in 1891. (wikipedia.org)
- 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)
- In nearly all present day color television tubes, the emission color is controlled by directing the exciting electrons to one of three physically separated phosphors having a distinct emission color. (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)
- When the electrons in the ray hit an oxygen atom, it moves to a higher energy state. (instructables.com)
- The reason that you can bend this ray with a magnet is because electrons are negative. (instructables.com)
- Inside the tube, this stream of electrons hits a specially coated screen and is visible as a bright line. (learner.org)
- 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)
- The diagonal screen size of a CRT television is limited to about 40 inches because of the size requirements of the cathode ray tube, which fires three beams of electrons onto the screen, creating a viewable image. (wikipedia.org)
- The electric field produced causes electrons to hop on the surface of the cathode at the conducting-insulating interfaces. (google.co.uk)
- The cathode-ray tube amusement device consists of a cathode ray tube connected to an oscilloscope with a set of knobs and switches. (wikipedia.org)
- used in the cathode ray oscilloscope. (thefreedictionary.com)
- They are still used widely today as oscilloscope screens, but these cathode ray tubes as screens are a little bit more complicated than the simple cathode ray tube that we are going to be building in this instructable. (instructables.com)
- It was an ancestor of the oscilloscope and television picture tube. (scientificamerican.com)
- shadow-mask cathode-ray tube A type of cathode-ray tube that has a perforated mask between the electron guns and the phosphor-coated surface to ensure that each electron gun can only hit phosphor spots of the appropriate color. (encyclopedia.com)
- c) coating a transparent film of an inorganic material on an outermost surface of the multilayer optical interference film closest to the phosphor layer, to a thickness of at least 1.0 μm to thereby prevent the Browning phenomenon of deterioration of optical characteristics of the multilayer optical interference film, caused over time by bombardment of electron beams while the projection cathode ray tube is active. (google.com)
- It was a cold-cathode diode, a modification of the Crookes tube with a phosphor-coated screen. (wikipedia.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)
- wherein a surface of said face glass of said cathode ray tube to which phosphor elements are mounted is aspheric and wherein the radius of curvature of said surface is greatest at the optical axis and is less radially outward thereof to reduce the amount of light from said phosphor elements which undergoes total internal reflection from a central portion of said concave face of said fourth lens. (google.de)
- Cathode rays were discovered by Julius Plücker and Johann Wilhelm Hittorf. (wikipedia.org)
- Hittorf observed that some unknown rays were emitted from the cathode (negative electrode) which could cast shadows on the glowing wall of the tube, indicating the rays were traveling in straight lines. (wikipedia.org)
- In 1890, Arthur Schuster demonstrated cathode rays could be deflected by electric fields, and William Crookes showed they could be deflected by magnetic fields. (wikipedia.org)
- These cathode rays are able to be used in televisions because they can be effected by magnetic fields. (instructables.com)
- The Geissler tube was the first type of vacuum tube to have an extremely low pressure within, a vacuum so high that interesting phenomena, such as cathode rays, could be observed. (goldpundit.com)
- Describe the deflection of cathode rays by electrically charged pl. (bartleby.com)
- He made fundamental contributions to the field of analytical geometry and was a pioneer in the investigations of cathode rays that led eventually to the discovery of the electron . (wikipedia.org)
-  It was later shown that the glow was produced by cathode rays. (wikipedia.org)
- 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)
- The present invention relates to a projection cathode ray tube for projecting the image, displayed on a fluorescent surface, on a screen in front of the fluorescent surface through a projection lens as an enlarged image. (google.com)
- In an ordinary cathode ray tube, the light emitted from the fluorescent surface assumes a state approximate to what is called perfect diffusion light. (google.com)
- He found that the discharge caused a fluorescent glow to form on the glass walls of the vacuum tube, and that the glow could be made to shift by applying an electromagnet to the tube, thus creating a magnetic field. (wikipedia.org)
- 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)
- 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)
- CR excitable phosphors are used, for example, in cathode ray tubes while U.V. excitable phosphors are used in fluorescent lamps and mercury lamps and x-ray excitable phosphors are employed in x-ray tubes. (google.es)
- The European Commission (EC) fined seven companies including Philips a total of €1.47 billion ($1.92 billion) for participating in either one or both of two distinct cartels in the sector of cathode ray tubes (CRTs). (contractormisconduct.org)
- 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)
- It was this property of the cathode ray that let JJ Thompson discover and prove the existence of the electron as a subatomic unit of an atom in 1897. (instructables.com)
- Without the ability to make a high vacuum, the Geissler tube and subsequent vacuum tubes would have been impossible to make. (goldpundit.com)
- In 1858, after a year of working with vacuum tubes of his Bonn colleague Heinrich Geißler ,  he published his first classical researches on the action of the magnet on the electric discharge in rarefied gases. (wikipedia.org)
- 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)
- A color cathode-ray tube apparatus has a compensation mechanism for generating a magnetic field that compensates a change in a horizontal-deflection magnetic field due to a change in the temperature of horizontal-deflection coils. (google.com)
- The indicator tube developed by "Braun" in the 1890's leasured electrical quantities by the deflection of an electron beam. (scientificamerican.com)
- A cathode-ray tube in which electrostatic deflection is used on the electron beam. (thefreedictionary.com)
- No. 4,642,695, filed by the applicant of the present invention, is disclosed a method of ameliorating the defect of a projection television set, namely, the poor convergence ratio exhibited when the beams of the respective monochromes emitted from the projection cathode ray tube are received by the projection lens unit. (google.com)
- A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, the beams of which are manipulated to display images on a phosphorescent screen. (wikipedia.org)
- These are likely to be the integrated digital televisions, whereas at the moment people are using cathode-ray tube TVs and set top boxes which give off a lot of energy as heat. (thefreedictionary.com)
- In Japan, more and more cathode-ray tube televisions are replaced by liquid crystal, plasma, and other types of television, the association said. (thefreedictionary.com)
- Early cathode ray tubes were perfected by the British physicist, William Crookes and further developed by J.J. Thomson. (learner.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 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)
- Such luminescent compositions, known generally as phosphors, emit visible light or other radiation when excited or irradiated by a different form of radiation, such as ultraviolet (U.V.), cathode ray (CR) or X-radiation. (google.es)
- The device simulates an artillery shell arcing towards targets on a cathode ray tube (CRT) screen, which is controlled by the player by adjusting knobs to change the trajectory of a CRT beam spot on the display in order to reach plastic targets overlaid on the screen. (wikipedia.org)
- A CRT on a television set is commonly called a picture tube. (wikipedia.org)
- In television sets and computer monitors, the entire front area of the tube is scanned repeatedly and systematically in a fixed pattern called a raster. (wikipedia.org)
- The pair worked at television designer DuMont Laboratories in Passaic, New Jersey specializing in the development of cathode ray tubes that used electronic signal outputs to project a signal onto television screens. (wikipedia.org)
- 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)
- The CyberPro5350 merges multiple, independent sources of audio, video, text, graphics and animation simultaneously and delivers a high-quality output stream to devices such as traditional cathode-ray tube television, digital television panel displays and other graphics-intense multiple display devices. (thefreedictionary.com)
- These tubes have been used as television screens for all of the 20th century and for the early part of the 21st century. (instructables.com)
- Cathode ray tubes found their greatest use in television sets and computer monitors. (learner.org)
- These technologies have almost completely displaced cathode ray tubes (CRT) in television sales, due to the necessary bulkiness of cathode ray tubes. (wikipedia.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)
- A television picture tube for image display. (nasa.gov)
- 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)
- to take care (of) / to control / to manage / to be in charge of / to look after / to run / to care about / tube / pipe / woodwind / classifier for tube-shaped objects / particle similar to 把 in 管 . (mdbg.net)
- Because the vacuum is not perfect, there will still be air molecules in the tube. (instructables.com)
- The selection of phosphors to be used in a cathode ray tube is very important. (jrank.org)
- In 1908 Alan Archibald Campbell-Swinton, fellow of the Royal Society (UK), published a letter in the scientific journal Nature in which he described how "distant electric vision" could be achieved by using a cathode ray tube (or "Braun" tube) as both a transmitting and receiving device. (wikipedia.org)
- In a Sprengel pump, a reservoir of mercury is attached to a very narrow capillary tube. (goldpundit.com)
- At the top of the capillary tube, a big glass chamber, to hold the vacuum, is connected. (goldpundit.com)
- Mercury is fed at a slow drip into a chamber at the top of the capillary tube. (goldpundit.com)
- This trapped air is released at the end of the capillary tube when the mercury drips down into an open container. (goldpundit.com)
- A liquid thermometer works by using the thermal expansion of a liquid within a capillary tube to measure temperature. (reference.com)
- 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, narrow-angle lens of high aperture designed for low magnification in the recording of cathode-ray tube images. (photonics.com)
- the other cartel involved color display tubes used in computer monitors. (contractormisconduct.org)
- Around the time of the invention of the Geissler tube, in 1865, the Sprengel pump was invented by Hermann Sprengel. (goldpundit.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)
- The cathode-ray tube amusement device is the earliest known interactive electronic game with an electronic display. (wikipedia.org)
- Nevertheless, it is the earliest known interactive electronic game to incorporate an electronic display, as no prior games, such as the 1936 Seeburg Ray-O-Lite, had such a display or primarily used electronic components-ones which modify an electrical signal, rather than simply using electricity as power. (wikipedia.org)
- founded in 1980, focused on designing, manufacturing and marketing cathode-ray tube (CRT) displays that were sold to original equipment manufacturers and display system integrators. (thefreedictionary.com)
- Cathode Ray Tubes were the display technology for around seventy years. (goldpundit.com)
- To present a new stimulation method based on the use of a head -mounted display (HMD) during pattern reversal visual evoked potential (PR-VEP) testing and to compare variables of HMD to those of conventional cathode ray tube (CRT). (bvsalud.org)
- 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)
- Today, cathode ray tubes are being replaced by sleeker flat screen technology. (learner.org)
- H01J1/28 - Dispenser-type cathodes, e.g. (google.com)
Electrodes at either1
- The simplest cathode ray tube is a sealed glass chamber that has electrodes at either end and a port to be able to draw a vacuum from. (instructables.com)
- Artist Helga Griffiths transforms SCHOTT Petri dishes and test tubes into unusual works of art. (schott.com)
- The Geissler tube was special because it was the first time that a very low air pressure, near a vacuum, was reached in a glass chamber. (goldpundit.com)
- This happened in 1855, when Heinrich Geissler invented the Geissler tube. (goldpundit.com)
- But these could not attain a low enough vacuum pressure to make a Geissler tube. (goldpundit.com)
- Most sources say that Geissler invented some sort of mercury vacuum pump to evacuate his tubes (possibly hand cranked, but probably not). (goldpundit.com)
- So, it is plausible that Geissler tubes were made in later years with this pump or that Giessler invented a similar version of the pump. (goldpundit.com)
- Mercury pump technologies are what enabled Geissler to make his high vacuum tube. (goldpundit.com)
- Usually, Geissler tubes were not completely emptied of gas. (goldpundit.com)
- Geissler would remove most of the air from the tube and then introduce gasses such as Argon, Neon, Mercury Vapor, and so on. (goldpundit.com)
- He was the first to use the vacuum tube with the capillary part now called a Geissler tube , by means of which the luminous intensity of feeble electric discharges was raised sufficiently to allow of spectroscopic investigation. (wikipedia.org)
- 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)
- It is quite possible that eventually LCDs will completely replace the traditional CRT, just as the transistor replaced the vacuum tube. (newworldencyclopedia.org)
- So, before this cathode ray technology could be discovered, there had to be a way to pump most of the air out of a container. (goldpundit.com)
- It was a magnificent achievement, both because of the fact that this tube was the first human made tube to be almost completely emptied of air, and because of the further scientific discovery and technology that it enabled. (goldpundit.com)
- The cathode-ray tube was the technology behind most displa. (reference.com)