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CATR also leads on export controls to protect the use of dual-use goods—including semiconductors—and prevent their use in ways that harm national security or abuse human rights. Back to Top White House
Keysight's F9650A Compact Antenna Test Range (CATR) is optimized to provide the most accurate over-the-air measurements for 5G NR millimeter-wave test. The F9650A integrates with Keysight's Network Emulation Solutions for RF design verification, RF conformance, radio resource management (RRM, one angle of arrival, AoA), RF demodulation and ...
Conventional Weapons Controls and Transparency CATR leads U.S. efforts to develop, coordinate, and implement policy to promote bilateral and multilateral coordination in export control policy for conventional weapons and related dual-use technology. It heads the U.S. delegations to the 41-nation Wassenaar Arrangement . Officers formulate, coordinate, and implement U.S. policy in the Wassenaar ...
A Compact Antenna Test Range (CATR) allows electrically large antennas to be measured at a significantly shorter distance than would be necessary in a traditional far-field test range. Compact ranges use a source antenna (feed) to radiate a spherical wave in the direction of a parabolic reflector, collimating it into a planar wave for aperture ...
CATR leads the development of U.S. policy on multilateral efforts on conventional weapons transfers, including the Arms Trade Treaty (ATT) and the U.N. Register of Conventional Arms. The ATT is an additional important step in our efforts to stem the illicit international trade in conventional weapons and reduce the risk that they will be used ...
A Compact Range System or Compact Antenna Test Range (CATR) makes direct far-field measurements of electrically large antennas in a shielded anechoic chamber. It uses a large parabolic reflector to project a small radiating source (feed) into the far field. The reflector is used to transform a spherical wave into a plane wave with far-field ...
Carboxyatractyloside (CATR) is a highly toxic diterpene glycoside that inhibits the ADP/ATP translocase.It is about 10 times more potent than its analog atractyloside. [1] While atractyloside is effective in the inhibition of oxidative phosphorylation, carboxyatractyloside is considered to be more effective. [2] The effects of carboxyatractyloside on the ADP/ATP translocase are not reversed by ...
# catR is an excellent tool for students who are curious about # how a computerized adaptive test might work. It is also useful # for testing companies that are interested in seeing how # their choices of number of items, or model, stopping rule, # or quite a few of the other options which are available # when designing a specific computerized ...
Provides routines for the generation of response patterns under unidimensional dichotomous and polytomous computerized adaptive testing (CAT) framework. It holds many standard functions to estimate ability, select the first item(s) to administer and optimally select the next item, as well as several stopping rules. Options to control for item exposure and content balancing are also available ...
thereby minimising the amplitude taper within the CATR QZ. As an example of the initial results of using the optimiser a 9-element rectangular horn array feed was used with a sector shaped CATR (based on the 3m CATR that forms the 8GHz to 60GHz CATR facility at Queen Mary University of London's (QMUL) Antenna Measurement Laboratory), and Fig. 2