Photo-activation of the hydrophobic membrane probe 1, 5 iodonaphthylazide (INA) by irradiation with UV light (310-380 nm) results in the covalent modification of transmembrane anchors of membrane proteins. This unique selectivity of INA towards the transmembrane anchor has been exploited to specifically label proteins inserted in membranes. Previously, we have demonstrated that photo-activation of INA in enveloped viruses resulted in the inhibition of viral membrane protein-induced membrane fusion and viral entry into cells. In this study we show that photo-activation of INA in various cell lines, including those over-expressing the multi-drug resistance transporters MRP1 or Pgp, leads to cell death. We analyzed mechanisms of cell killing by INA-UV treatment. The effects of INA-UV treatment on signaling via various cell surface receptors, on the activity of the multi-drug resistance transporter MRP1 and on membrane protein lateral mobility were also investigated. INA treatment of various cell lines

Aim of study: The purpose of this study was to evaluate the effect of Quartz tungsten halogen, Light emitted diode & soft start light curing units on temperature rise..

Some of the results come as a surprise: contrary to expectations, the reaction rate is not so much limited by the concentration of the molecules in solution, but decisively by the permeability of the nanoreactors shell. This is extremely interesting since chemists today can often fine tune or even switch the permeability of these shells to specific molecules via variations in temperature or other parameters, explains co-author Dr. Won Kyu Kim.. Photo-activation taken into account. The new model is a big step forward from the older theory done many decades earlier that could handle only one molecule. Our model is applicable to research on energy materials, and it can even take into account photo-activation of one of the molecules at the shell by sunlight, Dzubiella states. He has achieved with this work one of the goals of his European Research Council (ERC) Consolidator Grant (2015-2020).. ...

How to Replace a Lightbulb in an Outdoor Halogen Light Fixture. Outdoor halogen light fixtures offer a brilliant light radius which can often illuminate your entire yard. The light is so powerful, that it often only requires one well-placed light fixture to do it.. When you have a halogen light fixture outside and the bulb happens to go out, the difference is like, well, it is like night and day! A great source for home security or for simply being able to keep an eye on your dog as he does his business, halogen light fixtures are a wonderful addition to any backyard.. But, these powerful lights do not use a conventional light bulb. Halogen light bulbs are long and thin, and they do not get screwed in, which can confuse some people. So to help keep your yard illuminated, heres how to change a lightbulb in an outdoor halogen light fixture.. ...

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The present application provides a multi-dimensional light-emitting device electrically connected to a power supply system. The multi-dimensional light-emitting device comprises a substrate, a blue light-emitting diode array and one or more phosphor layers. The blue light-emitting diode array, disposed on the substrate, comprises a plurality of blue light-emitting diode chips which are electrically connected. The multi-dimensional light-emitting device comprises a central area and a plurality of peripheral areas, which are arranged around the central area. The phosphor layer covers the central area. When the power supply system provides a high voltage, the central area and the peripheral areas of the multi-dimensional light-emitting device provide a first light and a plurality of second lights, respectively. The first light and the second lights are blended into a mixed light.

A high energy filament lamp light source, such as a quartz tungsten halogen lamp, operated in a pulsed mode with a high voltage input, creates a particular energy output. Applications of such apparatus and methods include treatment of the dermis and/or sub-epidermal tissues for the purpose of skin recontouring, thermal destruction of hair follicles for the purpose of hair removal, and others, and a method which selectively preheats a subsurface region in targeted tissue to sub-thermal modification threshold values without significant heat damage to surrounding layers prior to further treatment.

Electrophoretic Deposition: Fundamentals and Applications III: Monitoring Constrained Sintering of YSZ Coatings Using Fluorescence Spectroscopy and Micro-Hardness

TY - JOUR. T1 - Towards a better understanding of polymer-based light-emitting diodes. T2 - A theoretical insight into the basic phenomena. AU - Cornil, J.. AU - Beljonne, D.. AU - Dos Santos, D. A.. AU - Shuai, Z.. AU - Bredas, Jean-Luc. PY - 1996/4/15. Y1 - 1996/4/15. N2 - In this contribution, we try to illustrate that quantum-chemistry calculations can prove useful to comprehend better the phenomena occurring in the active layer of polymer-based light-emitting diodes. We review the results of recent theoretical calculations conducted at the correlated level on conjugated oligomers that address several topics of prime interest in the search of new routes towards the achievement of devices with enhanced characteristics. These studies performed on oligomers representative of poly(para-phenylenevinylene) and polythiophene deal with: (i) the modeling of the optical properties of the conjugated polymers involved in the emitting layer; (ii) the investigation of the relative locations of, and ...

A color tunable light-emitting device is provided which comprises a first light-emitting element, a second light-emitting element, an active light transformative element disposed between the first light-emitting element and the second light-emitting element; and at least one light transmissive element, wherein the first and second light-emitting elements emit light at different wavelengths. Active light transformative elements which may be employed are illustrated by electrochromic elements, photochromic elements, and thermochromic elements.

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The luminous device, which is provided in particular for use in the medical sector, has a luminous unit (1) which comprises at least one light-emitting diode (11) and which is connected or can be connected to a power supply device (3) via electrical lines (21, 22). According to the invention, a connecting element (2) is provided, which has a strip-type, flexible and insulating base substrate (21) coated with metal on one side or on both sides, into which are incorporated the electrical lines (22; 23), which are led to connections (25) of the luminous unit (1) at one end of the connecting element (2) and to connections (26) of the power supply device (3) at the other end of the connecting element (2), wherein the metal layers (22, 23, 24) provided on one or both sides of the base substrate (21) are dimensioned in such a way that they hold the base substrate (21) in a chosen form.

The modular design of the WITec microscope serried allows the attachment of a time correlated single photon counting module to the alpha300 or alpha500 confocal microscope series. This makes possible several types of spatial and time-resolved measurements such as fluorescence lifetime imaging or electro- and photo-luminescence decay imaging. This application note covers spatially resolved µElectroluminescence (EL) studies of a blue, light-emitting diode (LED).

Read Applying the selective Cu electroplating technique to light-emitting diodes, Research on Chemical Intermediates on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

FIG. 1 is a front, right side perspective view of an adjustable halogen lamp showing my new design;. FIG. 2 is a top, rear, right side perspective view thereof with the lamp in an alternate position;. FIG. 3 is a left side elevational view thereof;. FIG. 4 is a front elevational view thereof;. FIG. 5 is a rear elevational view thereof;. FIG. 6 is a top plan view thereof; and,. FIG. 7 is a bottom plan view thereof.. ...

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A flexible piston rod includes a piston and a row of elements, each having top, bottom, and lateral surfaces, the top surface of one element being connected to the bottom surface of an adjacent element by a hinge that allows the two adjacent elements to pivot from a first position, where a portion of the top surface of one element abuts a corresponding portion of the bottom surface of the adjacent element and corresponding to a rectilinear, relatively stiff configuration of the piston rod, to a second position wherein the top surface of one element is spaced from the bottom surface of the adjacent element and corresponding to a curved configuration of the piston rod. The lateral surface of each element has first and second mutually-opposed cylindrical surface portions incorporating a thread for meshing with a corresponding thread of an actuator for displacing the piston rod longitudinally.

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The cell imaging centre BICEL-IFR114, IBISA certified, offers different activities as trainings, support, monitoring and consulting to a wide scientific community present within the site but also to national and international entities academic organizations or private companies. Studies using imaging equipment such as confocal microscope, conventional microscope or times series microscope are designed to localize, by immunofluorescence techniques, fusion proteins or histological stainings, molecules of interest in tissues and cells, fixed or alive. These systems also allow the visualization and quantification of many dynamic processes in biology such as cell survival, cell migration, changes in membrane potential or intracellular calcium concentration. Experiments of FRET, FRAP or photo-manipulation (photo-activation, photo-conversion) are also achievable through advanced microscopy techniques dynamics. The platform also offers studies in molecular biology with the technique of laser ...

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When I found LCU, it changed my life! Human words cannot describe how LCU put me on the path God had for me. The spiritual atmosphere and anointing, plus the deep knowledge of the Word and passionate teaching all worked to guide me into what I was searching for. I now feel equipped to do the work of the ministry. My studies at LCU gave me the confidence to preach: I always hoped for this! Once I took the steps to become prepared, God opened doors for me. I have already preached in several churches, and more are opening up, both in the U.S. and in Puerto Rico. I want to encourage you: if you have the desire to serve God, LCU can help you achieve your dream ...

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Light-emitting diodes (LEDs) come in many varieties and with a wide range of radiation patterns. We propose a general, simple but accurate analytic representation for the radiation pattern of the light emitted from an LED. To accurately render both the angular intensity distribution and the irradiance spatial pattern, a simple phenomenological model takes into account the emitting surfaces (chip, chip array, or phosphor surface), and the light redirected by both the reflecting cup and the encapsulating lens. Mathematically, the pattern is described as the sum of a maximum of two or three Gaussian or cosine-power functions. The resulting equation is widely applicable for any kind of LED of practical interest. We accurately model a wide variety of radiation patterns from several world-class manufacturers.. ©2008 Optical Society of America. Full Article , PDF Article ...

I have worklights and with some diffusion and reflection they work great to light scenes but Im using standard bulbs and I could really use pure

Pulling force 800 - 3200 daN - It has a light weight, compact, high tensile aluminium al-loy housing with a large flat bottom surface for increased stability in horizontal as well as vertical working position.

If you look at the trends in the physical properties of the halogens, Cl2, Br2, I2 you can make predictions about the properties of the other halogens.

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Halogen lamp is an incandescent lamp with an advanced design and is also called a tungsten or quartz halogen lamp. The filament of the light bulb consists of ductile tungsten, while the light bulb itself consists of quartz, aluminum silicate or silica. The gas contained in the light bulb has a higher pressure than an ordinary light bulb.. WORK OF THE HALOGEN LAMP The halogen lamp contains halogen gas in the lamp. This gas prevents the bulb from turning black, unlike conventional ones, and also lowers the thinning of the tungsten filament. As a result, the filament can be heated to a much higher temperature while the life of the light bulb is also significantly improved. There are many elements called halogen but not all are used in the design of such lamps. Iodine and bromine are used in the halogen lamps.. Chemistry involved in a halogen lamp includeis the chemical combination of the vaporized tungsten atoms with the halogen gas which is then re-deposited on the tungsten filament. This prevents ...

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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 ...

The A1U10 group showed significantly lower mean hardness than the other two groups (A1U20 and A1U40) for the U surface of this composite resin shade (A1) (£0.05). At the L surface of A1 shade a significantly higher mean hardness was found at 40 s irradiation time (A1L40) than for the A1L10 and A1L20 groups, which means that values were also statistically different (p£0.05). Both surfaces (U and L) of A3 shade composite revealed significantly greater mean hardness values at 40 s curing time, followed by the 20-s and the 10-s curing time groups (p£0.05). Statistically significant differences were found between U and L surfaces of each composite shade-IT combination (p=0.0001) and among the irradiation times of same shade-surface combination (p=0.0001), except between A1U20 and A1U40 groups. DISCUSSION. The polymerization of light-cured composite resins starts and is sustained when the rate of delivery photons from the source of light is sufficient to maintain the photo-absorbing compound, ...

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The PWM (Pulse Width Modulation) operation of theautomotive halogen lamps will be forced by theautomobile manufactures with the introduction of theincreased voltage batteries.

where P is applied a load in kg, A is uncovered projected area of indentation in mm2, L is the length of the long diagonal in mm and C is a constant related to the length of a projected area for each indentor supplied by the manufacturer.. One can calculate the Knoop hardness from the projected area of the impression or indentation rather than the area of contact as in the case of indentation tests.. We must note that micro-hardness require extra care in all stages of testing. A good polishing of the surface is required, i.e. the surface of the specimen must be prepared carefully.. ...

We evaluated the effect of different light combinations on powdery mildew resistance and growth of melon seedlings. Light-emitting diodes were used as the light source and there were five light combinations: white light (420-680 nm); blue light (460 nm); red light (635 nm); RB31 (ratio of red and blue light, 3: 1); and RB71 (ratio of red and blue light, 7: 1). Compared with other treatments, blue light significantly decreased the incidence of powdery mildew in leaves of melon seedlings. Under blue light, H2O2 showed higher accumulation, and the content of phenolics, flavonoid and tannins, as well as expression of the genes involved in synthesis of these substances, significantly increased compared with other treatments before and after infection ...

A light-reflective anisotropic conductive paste is used as an anisotropic conductive paste when a light-emitting device is produced by flip-chip mounting a light-emitting element such as a light-emitting diode element (LED) on a wiring board. The light-reflective anisotropic conductive paste includes light-reflective insulating particles, in order to improve light emission efficiency without providing, in the LED, a light-reflecting layer that causes an increase in manufacturing cost. With the light-reflective anisotropic conductive paste, a reduction in bonding strength of the light-emitting element to the wiring board in a high-temperature environment can be suppressed, and a reduction in conduction reliability after a TCT can also be suppressed. In the light-reflective anisotropic conductive paste, conductive particles and the light-reflective insulating particles are dispersed in a thermosetting resin composition. The thermosetting resin

Intense room temperature emission at 3.7 mu m is reported from light-emitting diodes (LEDs) which contain ten InAsSb/InAs type II multi quantum wells grown by molecular beam epitaxy. Interpretation of the spectra revealed the existence of two confined heavy-hole states with emission peaks of 0.33 and 0.37 eV at 4 K. Analysis of the temperature dependence of the electroluminescence shows that emission occurred predominantly from the excited heavy-hole state at high temperatures. At room temperature, the devices produced a quasi-cw power of 12 mu W at 100 mA injection current corresponding to an internal quantum efficiency of 2.2%.. ...

All-inorganic perovskite materials, i.e. cesium lead halide (CsPbX3 (X = I, Br, Cl)), have attracted much attention in the application of photoelectronic devices, especially in solar cells and light-emitting diodes (LEDs). However, the solubility issue of CsPbX3 restricts their utilization in solution-proces

Blue light-emitting diodes (LEDs) offer new opportunities in practical solid-state lighting and could play a significant role in reducing global energy consumption. Here, for the first time, we report the synthesis of highly fluorescent InP/ZnS small-core/thick-shell tetrahedral shaped QDs for blue LED appli

Page contains details about organic light-emitting diode structure . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com

Page contains details about iridium-containing polymer organic light-emitting diode . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com

View Notes - fulltext9 from SPECTOGRAP 545 at AIB College of Business. Frequency Domain Fluorometry with Pulsed Light-Emitting Diodes P ETR H ERMAN AND J AROSLAV V ECER Faculty of Mathematics and

The Report Global Light-Emitting Diode Lighting Module Market 2017-2021 provides information on pricing, market analysis, shares, forecast, and company...

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Attention: Either you have JavaScript disabled or your browser does not support JavaScript. To work properly, this site requires that you enable JavaScript.. ...

DPSS DMP LH series is a compact, diode-pumped solid-state (DPSS) laser providing high-power, continuous-wave (CW) power at 532nm in a near- perfect TEMoo mode with extremely low optical noise and excellent long-term stability. DPSS DMP LH series is truly a next-generation laser designed and manufactured using many years of experience to provide a sealed, turn-key source of collimated green light with high spectral purity.. A number of key technologies guarantee this performance. Sealed technology keeps all dirt, dust and moisture out of the laser head to provide years of uninterrupted usage without need for cleaning or maintenance. All cavity optics is permanently locked in perfect alignment.. The laser head is a monolithic 3-dimensional design for ruggedness and compactness to minimize the space consumed in your lab or instrument. The fiber-coupled pump diode package, contained in the power supply, has an expected lifetime of more than 20,000 hours to minimize cost-of-ownership. The power ...

Tender and Leads information for Transport of Hydrocarbons category - Oil & Gas Projects and Opportunities in Pakistan, Asia: Bottom Surface Preparation of Storage Tank#213

Double Beam UV Visible Spectrophotometer LUVSD-202 • Wavelength range 190-1100nm • Spectral Bandwidth 0.5, 1.0, 2.0, 4.0nm • Optical System Monochromator with 1200 lines/mm blazed holographic grating • Detector Silicon Photodiode • Stray Light Stray light is achieved at ≤0.05%T at 220nm and 360nm • Light source Deuterium and tungsten halogen lamp • Sample size A wide range of standard cuvettes to be use based on the sensitivity or sample volume requirements. • Sophisticated and simplified sample analysis software The sample analysis software provides the scanning, fixed wavelength analysis, quantitative analysis, data collection, storage, export, and reporting. With additional feature of an easy access USB port available in the unit that enables results to be stored directly to a USB memory stick for

Double Beam UV Visible Spectrophotometer LUVSD-201B • Wavelength range 190-1100nm • Spectral Bandwidth 0.5, 1.0, 2.0, 4.0nm • Optical System Monochromator with 1200 lines/mm blazed holographic grating • Detector Silicon Photodiode • Stray Light Stray light is achieved at ≤0.05%T at 220nm and 360nm • Light source Deuterium and tungsten halogen lamp • Sample size A wide range of standard cuvettes to be use based on the sensitivity or sample volume requirements. • Sophisticated and simplified sample analysis software The sample analysis software provides the scanning, fixed wavelength analysis, quantitative analysis, data collection, storage, export, and reporting. With additional feature of an easy access USB port available in the unit that enables results to be stored directly to a USB memory stick for

Plasma Arc Vortex Speaker: In this instructable, I will show you how to make your very own plasma arc vortex speaker! I set out to make the loudest plasma arc speaker with the fewest components. You can choose to make the vortex speaker or just a regular plasma arc speake...

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; ...

A desk comprising: a writing board, the writing board defining a top surface and a substantially opposed bottom surface; at least three sleeves, each of the at least three sleeves extending substantially away from the bottom surface, each of the at least three sleeves defining a respective free end substantially opposed to the bottom surface; at least three legs, each of the at least three legs being removably insertable into and securable to a respective one of the at least three sleeves; a first one of the at least three sleeves defining a ridge extending substantially longitudinally therefrom at the free end of the first one of the at least three sleeves and a second one of the at least three sleeves defining a recess extending substantially longitudinally thereinto at the free end of the second one of the at least three sleeves, the recess being configured and sized for substantially snugly receiving the ridge. Two of the desks are stackable on top of each other with legs detached therefrom by

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Laserglow lasers are integrated into several OEM cytometry systems where our DPSS systems provide the light source in a stable, cost-effective manner.

A method of designing a skeletal implant comprises measuring physical characteristics of the bone to be implanted, generating a macro-design of the implant based on the physical characteristics, and determining a micro-design for the implant to ensure that strain in the bone is kept between 100 and 3000 microstrain to promote bone growth and to minimize bone resorption during functional loading. In an alternate embodiment, a dental implant comprises a crest portion having a circular bottom surface, an opposite circular top surface, and a side wall intermediate the bottom surface and the top surface, the top surface being adapted for attaching the dental prosthesis thereto. A circular base portion has a crestal end, an opposite apical end, and a core section intermediate the crestal end and the apical end having an outer surface. A helical thread extends about a portion of the outer surface of the core section that secures the device within existing bone. The bone contacting surface area of the

Abstract from Ellen Bruzells lecture at symposium MED-10 Dentistry. (Organized by Ellen Bruzell). ESP-IUPB World Congress, Light & Life, Barcelona, Spain. August 25-30. 2019.. Dental personnel encounter a number of optical sources emitting a broad spectrum of wavelengths. Along with the usefulness, to various extents, of optical radiation in treatment and diagnostics, comes the risk of radiation exposure to the operators eyes and the patients oral tissues. The presentation will cover the involuntary and voluntary use of different light sources. The curing light used for photopolymerisation of dental materials is an everyday procedure in the clinic. Curing lights have evolved from emitting moderate intensities of UV to high intensity blue light LEDs of several watts per centimeter squared. Dental bleaching procedures combined with light is a controversial topic. It is debated whether the light improves the efficiency. Thereby, the justification of the use is questionable. The bleaching ...

Halogen Lamp Lamp Type Double Ended Lamp Shape T3 Base Type Recessed Single Contact (R7S) 150 Watts 120 Voltage Lamp Dia 3/8 In. Lamp Finish Clear Initial Lumens 2400 Color Temp 2950K Lamp Designation Q150T3/CL/CD Average Life 1500 hr. Max Overall Length 3-1/8 In. Meets 2012 Lighting Legislation Energy Primary Application Motion-Sensing And Security Torchiere Shatter-Resistant No

Additionally to having an API key associated with your account, exporting private event information requires the usage of a persistent signature. This enables API URLs which do not expire after a few minutes so while the setting is active, anyone in possession of the link provided can access the information. Due to this, it is extremely important that you keep these links private and for your use only. If you think someone else may have acquired access to a link using this key in the future, you must immediately create a new key pair on the My Profile page under the HTTP API and update the iCalendar links afterwards ...

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