Television set

Gadolinium yttrium garnets are used in microwave applications and gadolinium compounds are used as phosphors in color television sets. 

Strontium Titanate. Strontium titanate [12060-59-2], SrTiO, is a ceramic dielectric material that is insoluble in water and has a specific gravity of 4.81. It is made from strontium carbonate and is used in the form of 0.5-mm thick disks as electrical capacitors in television sets, radios, and computers. 

Evacuating 8 seoling equipment for refrigerotion units, electric light bulbs, rodio tubes, ond vocuum tubes for rodor equipment, television sets, and other types of electronic equipment 8 research apparatus... 

During the last century and a half, two new closely related classes of material have been introduced which have not only challenged the older materials for their well-established uses but have also made possible new products which have helped to extend the range of activities of mankind. Without these two groups of materials, rubbers and plastics, it is difficult to conceive how such everyday features of modern life such as the motor car, the telephone and the television set could ever have been developed. 

If designs are compared on the basis of count, then failure rates of each type of pint cither must be about the same, or be adjusted for the variations. For example, the parts count of vacuum-tube and solid-state television sets (using discrete components) are approximately the same, but their reliabilities are considerably different because of the better reliability of solid state components. 

EVACUATING a SEALING EOUIPMENT FOR. REFRIGERATION UNITS, ELECTRIC LIGHT BULBS, RADIO TUBES AND VACUUM TUBES FOR RADAR EOUIPMENT, TELEVISION SETS, AND OTHER TYPES OF ELECTRONIC EOUIPMENT a RESEARCH APPARATUS... 

The experiment conducted by Rutherford and his co-workers involved bombarding gold foil with alpha particles, which are doubly charged helium atoms. The apparatus used in their experiment is shown in Figure 14-9. The alpha particles are produced by the radioactive decay of radium, and a narrow beam of these particles emerges from a deep hole in a block of lead. The beam of particles is directed at a thin metal foil, approximately 10,000 atoms thick. The alpha particles are delected by the light they produce when they collide with scintilltaion screens, which are zinc sulfide-covered plates much like the front of the picture tube in a television set. The screen... 

On Wednesday night, a small friendly room with a jukebox, not a television set, decorated as if it were in the middle of the ocean and not the desert, with the kind of silly-cocktails costuming that could have entertained even troops, seemed exactly the place to be in April 2003. 

The most common imaging device that we encounter is probably the picture tube in a television set. It s a bulky device and it requires a lot of electrical power to operate. These two disadvantages have sparked the search for a better alternative—a display with the imaging power of the picture tube, but one that is more portable and that has lower power requirements. 

The brain could be likened to a television set in which the amino acids are providing the basic positive and negative power lines, while the other NTs (the multi-coloured wires) control the colour, contrast and brightness. All are required for a perfect picture but some are obviously more important than others. 

In this context, Benson and Ponton declare that while the chemical industry has made considerable achievements in reactor performance, safety and control, comparable to those in the microelectronics business, this success is by no means evident to the public, in deep contrast to the latter [139], It is said that this is mainly and in a way simply due to the visual recognition of chemical production plants. From a distance and for somebody outside the field, the chemical plants of the late 1940s and the early 1990s look virtually similar, whereas one is able immediately to see the big differences in, e.g., television sets and automobiles. Hence it is not evident that notable improvements were made over the decades. 

Thomsons picture of the atom emerged from his work with cathode ray tubes. It was a milestone on the road to understanding atomic structure. But it was not the only major advance to come out of cathode ray experiments. Almost every television set in existence today is a cathode ray tube. The electrons stream from the cathode and are deflected by electromagnetic coils guided by signals from the television station. When an electron hits the televisions screen, which is coated with a phosphorescent material, it produces a dot of color. The dots form the picture you see on the screen. 

The main aims of this chapter are to provide estimates for the amounts of pollutants emitted from processed electronic waste (e-waste) and assess the magnitudes of human exposure to these pollutants. Specifically in this chapter, e-waste is defined as the sum of discarded personal computers, electronic/electrical equipment, electronic entertainment devices, cell phones, television sets, and refrigerators. In another word, e-waste explicitly refers to electronics at their end of life cycle and disposed by end users rather than surplus electronics (brand new products). In addition, e-waste also does not include reusable (e.g., repairable electronics or second hand electronics) and secondary scraps (e.g., noble metals, plastics, and rubbers). 

A truck is carrying 1,000 television sets each set weighs 21.48 pounds. What is the total weight, in pounds, of the entire load ... 

In the cavernous halls of the Shanghai Industrial Exhibition, one can see a cornucopia of consumer goods (clothes of polyester, polyacrylic, and polyvinyl alcohol fiber shoes and sandals of polyvinyl chloride suitcases and television set frames of acrylonitrile-butadiene-styrene plastic toys and containers of polyethylene, and many other plastic products (China produced approximately 800,000 tons of plastics in 1980) of convenience we take for granted in the West) that the Chinese government will try to deliver, in quantity, to its citizens in the years to come. 

Optoelectronics covering of displays, from small LCDs in cellular phones to large rear-projection television sets or screens designed for audio-visual presentations... Transparent technical parts indicators, dials, inspection holes, caps, casings, hoods and other electrical parts... 

Some phosphorus compounds glow in the dark as they emit light after absorbing radiation. This makes them useful in special fluorescent lights and the color screens of television sets and computers. 

Conceptualizations, once arrived at, interact to produce new conceptualizations, new technology, from which, once more, new concepts and new needs may emerge. Television, for instance, derives as a concept from motion pictures and radio and, even though it was introduced only a comparatively short time ago, has rapidly become a central part of homes at all levels of society in our culture. Watching television has tended to produce a more uniform culture through greater exposure to common stimuli, has reduced the amount of time available for free interaction by members of any particular household, and has resulted in the creation of such implements as "TV trays" and "TV dinners" to accommodate the need for more time around the television set. Automobiles have made possible the movement to the suburbs, the virtual end of public transportation in many parts of our country, and a resultant increased dependency on private means of transportation. In its turn, this has produced a more mobile population, a proliferation of roads, a tendency to think of distance in terms of units of time, the destruction of the countryside, and an increased need to deal with air pollution. 

Barium titanate has many important commercial apphcations. It has both ferroelectric and piezoelectric properties. Also, it has a very high dielectric constant (about 1,000 times that of water). The compound has five crystalline modifications, each of which is stable over a particular temperature range. Ceramic bodies of barium titanate find wide applications in dielectric amplifiers, magnetic amplifiers, and capacitors. These storage devices are used in digital calculators, radio and television sets, ultrasonic apparatus, crystal microphone and telephone, sonar equipment, and many other electronic devices. 

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