Television systems

At present, all over the world the X-ray television systems, instruments based on magnetic heat and eddy-current methods are used to check the air-passengers luggage and to check staff when entering the hazardous objects. In banks, security services and etc. the optic-television and endoscopic technical vision systems are widely used. 

National Television System Committee (NTSC), 525- line television standard, 19 146-147... 

We were among the first clinical laboratories to have a closed circuit television system. The recorder was an upright piano-sized Ampex console, with two 14-inch spools. They shuttled four-inch wide videotapes back and forth, like... 

The electrical control system is powered by means of 24-V batteries which are charged automatically from a rectified a.c. supply. All the control devices are located beyond the safety wall. The separator is monitored by a closed circuit television system. 

MATERIALS STANDARDS AND SPECIFICATIONS] (Vol 1(5) National Television System Committee... 

ATSC, 1995] ATSC (1995). Digital audio compression (AC-3) standard. Doc. A/52/10, U.S. Advanced Television Systems Committee. 

As a rule OPCW equipment is used for sample collection and handed to the ISP/facility representative who will perform the sampling activity. If ISP equipment is used for sample collection, the IT will prepare a respective equipment blank sample. Sampling can be observed either directly by an inspector or from an on-site close circuit television system. The sampling operation and subsequent chain of custody procedures must be well established between the ISP and the IT before activities commence. 

Medical Sources. All medical encapsulations are done in a facility which consists of a series of five interconnected stainless steel boxes which provide primary containment of process equipment and materials. Interconnections include transfer ports, drop-through tubes, and ventilation ducts. Each containment enclosure has a floor area of 1.52 m x 0.91 m the floor level is 0.76 m above the building floor. A pair of master-slave manipulators serve each containment box. A closed circuit television system and a telescope are provided for close-up viewing of incell operations and can be moved from cell to cell as needed. General arrangement of the facility is shown in Figures 13 and 14. 

Some TEMs have a closed circuit television system fitted so that the images can be fed directly to an automatic image analysis system. 

Another PF copolymer 28, composed of alternating DOF and thieno-[3,2-b]thiophene, was reported by Iim et al. [59]. The incorporation of electron-rich thieno- [ 3,2- b ] thiophene moiety in the polymer backbone led to lower HOMO (5.38 eV) and higher LUMO (2.4 eV) levels than those of PFO (HOMO 5.8 eV, LUMO 2.12 eV [12]). The device ITO/PEDOT PSS/28/IiF/Al exhibited a pure green emission with a peak at 515 nm and CIE coordinates of (0.29, 0.63), which is very close to the standard green required by the National Television System Committee (NTSC) (0.26, 0.65). In addition, the maximum brightness and efficiency of this device were 970 cdm 2 and 0.32 cd A-1, respectively. 

Fagrell, B., Fronek, A., and Intaglietta, M., 1977, A microscope-television system for studying flow velocity in human skin capillaries. Am. J. Physiol., 233, H318-H321. 

Polymers can also be used to manufacture lenses and screens for projection television systems. These are most conveniently made from PMMA, or combinations of glass and PMMA, to counteract the high thermal expansion of the polymer. The use of ultraviolet curable coatings for lens replication and protective layers is widespread, and these systems are based on diacrylate or dimethacrylate monomers mixed with photoinitiators such as... 

If the software to be developed is part of a more general system, such as a television system, which includes many devices, a crucial requirements activity wiU be responsible for decomposing the overall system requirements into software and other requirements. The responsibilities of the software component within the overall system must be defined. The choice of what functionality to place in software and what to do in hardware must sometimes remain flexible because it could be dependent on current technology. 

Swedish-born US electronics engineer Ernst Alexanderson (1878-1975) invents an all-electronic television system... 

On occasion, a traveler to a foreign country has purchased a DVD only to find upon returning home that the disc cannot be played. That is because two different formats are in use National Television System Committee (NTSC) and Phase Alternating Line (PAL). The NTSC format runs thirty frames per second, and each frame inclndes 525 scan fines. The PAL format runs twenty-five frames per second, and each frame inclndes 625 scan fines. Becanse PAL has more scan fines, it is considered to have a higher resolution and therefore a higher-quality image. NTSC is used in the United States, while PAL is prevalent in Europe. 

High-Definition Television (HDTV) Digital television system that has twice as many scan lines per fi-arne, a wider format, and sharper image quality than conventional television. 

In 1960, producers experimented with television systems that released odor during programs called SmeU-O-Vision. 

Motion (often called real time or dynamic) radiography uses geometric collimators, neutron energy filters, shutters and a television system and is capable of producing high resolution images in real time. 

Where A/ is the available bandwidth frequency in Hz. The constants 30 and 525 represent the frame and fine frequencies, respectively in the conventional U.S. vision system. A factor of 2 is introduced because in one complete cycle both a black and a white fine are obtainable. The factor 0.75 is necessary because of the receiver aspect ratio the picture height is three-fourths of the picture width. There is an additional reduction of about 15% (not included in the equation) in the theoretical value because of horizontal blanking time during which retrace takes place. A bandwidth of 4.25 MHz—typically that of the conventional terrestrial television system—thus makes possible a maximum resolution of about 345 fines. 

Schade, O.H. 1948. Electro-optical characteristics of television systems. RCA Review 9 5-37, 245-286, 490-530, 653-686. 

Video. Video projectors provide resolution suitable for National Television Systems Committee (NTSC) level images. Display performance of 380-480 TV lines is typical. 

Fujio, T, Ishida, J., Komoto,T., andNishizawa, T. 1980. High definition television systems—signal standards and transmission. /. SMPTE 89(Aug.). 

Howe, R. and WeUiam, B. 1980. Developments in plastic optics for projection television systems. IEEE Trans. Consumer Elec. CE-26(1) 44—53. 

Color subcarrier In a composite television signal, the frequency division multiplexed carrier placed within the visual passband which carries the color modulation. In the National Television Systems Committee (NTSC) (United States) system, it is placed approximately 3.579 MHz higher that the visual carrier. 

Overview of the ATSC Digital Television System Video... 

---