Results 311 to 320 of about 20,381,326 (383)
PHARS: a C-Band Airborne SAR [PDF]
20th European Microwave Conference, 1990, 1990 For the study of microwave scattering of vegetation, forests, sea and other targets ground-based and airbome scatterometers and a digital SLAR system (X-band) are used since many years in The Netherlands. All these systems are absolutely calibrated.
Hoogeboom, P. +3 more
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C-Banding of Plant Chromosomes
2023C-banding visualizes regions of chromosomes containing constitutive heterochromatin. It creates distinct patterns along the chromosome length and allows precise chromosome identification if C-bands are present in sufficient numbers. It is performed on chromosome spreads generated from fixed material, usually root tips or anthers.
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Even-harmonic C-band modulator
IEEE Transactions on Microwave Theory and Techniques, 2005Direct modulation at microwave frequencies promises the advantages of compact size, low cost, and relatively simple system design. In this paper, a novel architecture of a direct-vector C-band modulator is described. In particular, a subharmonic mixer is used to overcome the high carrier leakage that is associated with conventional fundamental ...
Di Alessio, F. L. +2 more
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A high-resolution C-banding technique
Canadian Journal of Genetics and Cytology, 1986A high-resolution C-banding technique is described. The major advantages of this method are its simplicity and reliability. Because this technique allows the recognition of unusual C-band heteromorphisms, it can be very useful in population cytogenetic studies.Key words: karyotyping, banding (C), heterochromatin, high resolution.
M, De Braekeleer, M, Keushnig, C C, Lin
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Scanning Electron Microscopy of C-Banding
Zoological Science, 1996The mechanism of C-banding was analyzed on the basis of the structural changes of the 30 nm chromatin fibre using scanning electron microscopy (SEM). SEM of non-banded metaphase spreads of L-cells revealed chromosomes consisting of 30 nm chromatin fibre loops along the entire length.
S, Takayama, Y, Taketani, K, Bunno
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C-Band Heteromorphism in Breast Cancer Patients
Cancer Genetics and Cytogenetics, 1985The pattern of heteromorphism in the C-band-positive constitutive heterochromatin of human chromosomes #1, #9, and #16 was studied in peripheral lymphocytes of 54 breast cancer patients and 78 control individuals. The parameters of the heterochromatic regions analyzed were relative size, symmetry-asymmetry within homologous pairs, and prevalence of ...
R, Berger +4 more
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1980 International Electron Devices Meeting, 1980
The operating characteristics of a gyrotron travellng wave tube (gyro-TWT) operating at C-band are reported. Detailed testing showed that at higher beam voltage and current and with a magnetic field profile increasing in magnitude toward the rf output window, the output power could be increased from 50 kW at 16.6% efficiency to 128 kW at 24% efficiency.
P. Ferguson, R. Symons
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The operating characteristics of a gyrotron travellng wave tube (gyro-TWT) operating at C-band are reported. Detailed testing showed that at higher beam voltage and current and with a magnetic field profile increasing in magnitude toward the rf output window, the output power could be increased from 50 kW at 16.6% efficiency to 128 kW at 24% efficiency.
P. Ferguson, R. Symons
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C-Banding of Plant Chromosomes
2016C-banding is used to differentially stain metaphase chromosomes in organisms having appreciable amounts of constitutive heterochromatin. Its primary benefits are that it is an inexpensive and a relatively fast method of identifying individual chromosomes and morphological or karyotypic variation, including large chromosomal rearrangements and ...
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C-band coherent direct synthesizer
12th International Conference on Microwaves and Radar. MIKON-98. Conference Proceedings (IEEE Cat. No.98EX195), 2002The principle of operation of a direct coherent synthesizer is described. Practical realisation and measurement results of the C-band synthesizer are presented. Good parameters such as small frequency steps, fast switching time and low phase noise level are obtained.
W. Topilko, D. Startek
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C-Band Satellite Communications
30th AIAA International Communications Satellite System Conference (ICSSC), 2012Commercial satellite communications began in the early 1960s, building on C-band technologies developed in previous decades for point-to-point terrestrial microwave links. As the industry has grown, C-band usage in satellite communications has been augmented, but not replaced, by the usage of higher frequency bands.
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