Microwave radar

MCMILLAN, EDWIN M. (1907-1991). An American physicist who won the Nobel prize in chemistry in 1951 along with Glenn T. Seaborg lor their discoveries In the chemistry of the transuranium elements. His work included research in nuclear physics and particle accelerator development as well as microwave radar and sonar. He and his colleagues discovered neptunium and plutonium. He was the recipient of the Atoms for Peace prize in 1963. His Ph D. in Physics was awarded from Princeton University. 

B. L. Givot et al., 14th International Conference on Microwaves, Radar and Wireless Communications, mikon-2002,401 (2002). 

Gamma rays X-rays Ultraviolet 0) (/) > Infrared Microwaves/radar Radio waves TV/FM AM... 

Things moved rapidly after the magnetron showed its stuff at Bell Labs. Just a little over two weeks later, the decision was made to locate a federally supported laboratory at the Massachusetts Institute of Technology for the development of microwave radar. 

Long-term microwave radar monitoring of ocean slicks at low grazing angles... 

The detection of ocean surface slicks by microwave radars at intermediate incidence angles is well established. The all-weather day-and-night capabilities of microwave remote-sensing has resulted in its wide operational use by harbour authorities for the control of oil pollution in the coastal zone (Attema and Hoogeboom 1978, Sherman 1992). In research, microwave radars can also help further our understanding of air-sea interactions and hydrodynamic processes by providing extensive synoptic two-dimensional maps of the slicks spatial distribution (Espedal et al. 1996, da Silva et al. 1998). 

Huhnerfuss H, Alpers W, Jones WL, Lange PA, Richter K (1981) The damping of ocean surface waves by a monomolecular film measured by the wave staffs and microwave radars. J Geophys Res 86 429-438 Huhnerfuss H, Alpers W, Witte F (1989) Layers of different thickness in mineral oil spills detected by grey level textures of real aperture radar images. Int J Remote Sensing 10 1093-1099... 

J Dabrowski, et al, Design and performance of low noise eascode IC for wireless applications , 15 int conf Microwaves, Radar and Wireless Communications, 3 882-885 May 2004. 

Gamma rays X rays Ultra- violet Visible Near IR Infrared Far Infrared Microwave (radar) Television... 

Photonics-based broadband phased-array antenna beamformers have been extensively investigated over the last decade for applications ranging from modern microwave radar to wireless communication systems. A broadband phased-array antenna requires the generation of variable true-time delays at each antenna element to realize beam or null steering. Several approaches have been adopted to realise tunable true-time delay units, including the use of in-... 

A pure rotation spectrum may be observed using microwaves (radar waves or, more correctly, EM waves in the wavelength range 1 mm < k < 30 cm). Rotational spectra can be seen in the gas phase for molecules with a dipole moment and for molecular groups rotating around a bond in larger molecules, for example, in proteins or transition metal complexes. 

Resonance, rotating paddle, capacitance, microwave/ radar, diaphragm, laser and photocell, magnetoresistance, air bubbling... 

Radiofrequency energy with a range of 10-3,000 MHz is widely used for communications and radar equipment. The peak electric field strengths in public areas close to the transmitter source are less than 200 V/m, except for those of ham radios, which can be 325 V/m, and microwave radar, which is estimated to be as high as l,400V/m. Aircraft radio communication... 

Gamma rays Xrays Far ultra- violet Near ultra- violet JD 3 "53 > Near infrared Far infrared Microwaves Radar TVFMAM Radio waves... 

Microwave/radar level transmitters 5% Three devices are mounted with separation and utilize two dissimilar technologies... 

Microwave radar level systems are also possible, which are not affected by density changes in the beam path as are ultrasonic beam techniques. 

Pieraccini M, Luzi G, Mecatti D, Noferini L, Atzeni C (2003) A microwave radar technique for dynamic testing of large structure. IEEE Trans Microwave Theory Tech 51(5) 1603-1609... 

Electrochromism can be said to encompass any property of CPs that varies with applied potential or doping. This may include conductivity. An application for conductivity electrochromism may be envisioned for instance with a Au grid on a flexible substrate on which a CP is deposited. When the CP is cycled between conductive and non-conductive states, the dielectric permittivity of the material, affecting its microwave/radar signatures, changes dramatically. We thus have a CP microwave/radar electrochromism" of sorts. Such uses are dealt with in the Applications section of this book. 

Radio Waves- Microwaves, Radar- infrared,visibie iight-> UV iight- X rays- Gamma rays... 

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