Light-emitting diode

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    Abstract- this paper presents OLEDs (Organic Light Emitting Diodes).How they work, what they are prepared of, and different policies to manufacture them with layers thicknesses, and the many functions for them. OLEDs function as both light source and color array at the same time; they are used to generate digital displays in devices. Due to their early stage of improvement, they normally release fewer lights per unit area than inorganic solid-state based LED point-light sources. Introduction-An OLED (organic light-emitting diode) is a sort of LED (light-emitting diode), where the emissive electroluminescent level is a film of organic compound which releases light in response to an electric current. This layer of organic semiconductor material…

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    Benzenethiol Ligand Study

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    In this study, the effect of benzenethiol ligand on CdSe/ZnS core/shell quantum dots was investigated. Conventional long-chain oleic acid (OA) and trioctylphosphine (TOP) capping ligands were partially replaced by short benzenethiol ligands, and the improvement in the luminescence performance was observed in quantum dot light emitting diodes (QD-LED). Approximately 1.8 fold improvement was achieved for both the maximum luminance and maximum current efficiency for the QD-LEDs fabricated with…

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    Pulse Oximeter Essay

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    The emitters and photo detector are placed so as to face each other through tissue about 5-10 mm in thickness. The diodes are switched turn on and turn off in rapid sequence so that each measurement set include an estimate of transmission of infrared light, red light and ambient illumination. The ratio of red to infrared light is determined and the corresponding oxyhemoglobin saturation is found from an empirically determined table. The individual measurements are made each second and fed into…

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    Shmood's Executive Summary

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    Every woman wants to “light up the room” when she attends an event. Be it walking the red carpet, walking down the aisle, walking into the prom, or walking into a major charity event. Her dress for the evening should enhance her elegance and confidence, while bringing her the compliments she deserves. Fashion, fit, and flare can now be “lit” too with the introduction of our luminous garments. For the ultimate in unique style, Shmood dresses that are exactly as our motto states is exactly our…

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    in Houston is one of the pioneering venues that recently installed a complete LED lighting system in 2015. Since the instillation, the stadium uses about 337 kilowatts at full power which is about 60% less electricity than that required for the previous lighting system (Fabiano). In addition to energy savings, LED lighting automated systems offer a greater level of sophistication that enrich fan experiences through dimming and color combinations. Sports Authority Field has already incorporated…

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    Sleep Patterns

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    Another study has shown that taking electrical devices, like a cell phone, to bed during the night can affect sleeping patterns. The handheld devices emit a blue LED light that tricks the brain into staying awake longer. The brain produces a chemical hormone called melatonin that prepares the body for sleep. The light from the screen however throw a person’s internal clock off and make them stay awake. Why does the blue light keep people up? A study in 2002 found that light signals in our eyes…

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    BP Oil Spill Scandal

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    energy costs of other building types by a factor of 10”. The solution to this problem is a technique called ‘retrofitting’. Retrofitting is adding on to an object that did not have it when manufactured. This can be compared to adding a new efficient engine to one’s car. There are multiple areas in the hospitals that can be retro fitted. The first is energy-draining lights found in many hospitals. An obvious retro solution is replacing incandescent bulbs with LED lights or transitioning from T12…

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    of the LED chips, the LED high bays are being used to replace the traditional lighting industry. Therefore, most users will buy the LED high bay since it is the most effective means of energy conservation. Since the LED lights came into the market, the price has been high due to its properties such as energy saving, environmental protection as well as its efficiency. Due to the above reason, most of the manufacturers are targeting the desire of users in LED high bay. They use the advantage of…

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    Jenny Holzer Essay

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    neo-conceptual artist who creates thought provoking narratives through her installations. Her medium includes billboards, buildings, posters, stickers, light projections, plaques, photographs, and perhaps her most famous medium, LED signs. No matter which medium she uses, however, her work never fails to incite and arouse the public. Holzer’s aesthetic includes language and narratives as art, which continues to inspire people around the world. Jenny Holzer was born on July twenty ninth,…

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    change their preferences and for business that sells products or services, it can be less profitable for that company if they don’t adapt to the changes (Small Business - Chron.com, 2015). Have a diverse population locally or nationally can cause issues if a company doesn’t have employees that can speak the language. Not being able to speak or understand can cause the customer to choose another company to hire. Energy Consultants operates in the energy efficiency industry. In this industry,…

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