Results 31 to 40 of about 205,865 (354)

A Broadband Planar Spiral Antenna Design for Electromagnetic Signal Monitoring

IEEE Access, 2020
In order to meet the wide-band full-space radio monitoring task, the design of a circular-polarized planar dual-arm composite spiral antenna is presented in this paper.
Daifu Chen, Hongxin Zhang, Jun Xu
doaj   +1 more source

Switchable filtering in vivaldi antenna [PDF]

, 2010
Presented is a new frequency switchable Vivaldi antenna that has a capability to operate in a wideband mode (1-3 GHz) and reconfigure to six different subbands of operations.
Gardner, P., Ghanem, F., Hall, P. S., Hamid, Mohamad Rijal   +3 more
core   +1 more source

Analysis of integrated UWB MIMO and CR antenna system using transmission line model with functional verification

Scientific Reports, 2022
This paper discusses the equivalent circuit model and functional verification of an integrated antenna system as its main focus. The integrated antenna system consists of two independent antenna systems, namely the Cognitive Radio antenna and the Ultra ...
P. Prabhu, Malarvizhi Subramani, Kyung-sup Kwak   +2 more
doaj   +1 more source

Aβ42 promotes the aggregation of α‐synuclein splice isoforms via heterogeneous nucleation

FEBS Letters, EarlyView.
The aggregation of amyloid‐β (Aβ) and α‐synuclein (αSyn) is associated with Alzheimer's and Parkinson's diseases. This study reveals that Aβ aggregates serve as potent nucleation sites for the aggregation of αSyn and its splice isoforms, shedding light on the intricate interplay between these two pathogenic proteins.
Alexander Röntgen, Zenon Toprakcioglu, Michele Vendruscolo   +2 more
wiley   +1 more source

Software Holography: Interferometric Data Analysis for the Challenges of Next Generation Observatories

, 2008
Next generation radio observatories such as the MWA, LWA, LOFAR, CARMA and SKA provide a number of challenges for interferometric data analysis. These challenges include heterogeneous arrays, direction-dependent instrumental gain, and refractive and ...
Bhatnagar, Clark, Condon, Cornwell, Cornwell, Cornwell, Lonsdale, Matejek, McEwen, Michael Matejek, Miguel F. Morales, Mitchell, Ng, Sault, Sault, Scott, Tegmark, Tegmark   +17 more
core   +1 more source

Dual-Fed DRA Subarrays Featuring Versatile Polarization Reconfigurability With High Port Isolation and Suppressed Cross-Polar Radiations

IEEE Open Journal of Antennas and Propagation
near square Dielectric Resonator Antenna (DRA) geometry with dual-aperture feeding has been explored. This aims in achieving a number of attractive features from a standalone unit as well as a 4-element subarray.
Satyajit Chakrabarti, Debatosh Guha
doaj   +1 more source

CREATING THE RT-32 RADIO TELESCOPE ON THE BASIC OF MARK-4B ANTENNA SYSTEM. 2. ESTIMATION OF THE POSSIBILITY FOR MAKING SPECTRAL OBSERVATIONS OF RADIO ASTRONOMICAL OBJECTS

Radio Physics and Radio Astronomy, 2019
Purpose: Technical capabilities of the MARK-4B antenna system necessary for its further using as a 32-meter radiotelescope (RT-32) and making simultaneous spectral radioastronomical observations in the C and K frequency ranges, are investigated ...
A. V. Antyufeyev, A. M. Korolev, O. M. Patoka, V. M. Shulga, O. M. Ulyanov, O. M. Reznichenko, V. V. Zakharenko, V. I. Prisiazhnii, A. V. Poichalo, V. V. Voityuk, V. N. Mamarev, V. V. Ozhinskii, V. P. Vlasenko, V. M. Chmil, V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdyn, A. S. Shubny, A. A. Kirilenko, D. Y. Kulik, A. M. Pylypenko   +25 more
doaj   +1 more source

Interaction of class III cellobiose dehydrogenase with lytic polysaccharide monooxygenase

FEBS Open Bio, EarlyView.
The activity of lytic polysaccharide monooxygenase (LPMO) is supported by its auxiliary enzyme cellobiose dehydrogenase (CDH). The catalytic activity of both enzymes is coupled by electron transfer and a cyclic cascade generating substrates for both enzymes – hydrogen peroxide for LPMO and oxidized and non‐oxidized cellobiose and cello‐oligosaccharide ...
Angela Giorgianni, Florian Csarman, Peicheng Sun, Mirjam Kabel, Roland Ludwig   +4 more
wiley   +1 more source

DSS-13 26-meter antenna upgraded radiometer system [PDF]

, 1992
The Deep Space Station (DSS)-13 26-m antenna radiometer system was upgraded with an IBM-compatible computer-controlled configuration with improved supporting hardware and software.
Bury, G., Skjerve, L., Stelzried, C. T.
core   +1 more source

CREATING THE RT-32 RADIO TELESCOPE ON THE BASIC OF MARK-4B ANTENNA SYSTEM. 1. MODERNIZATION PROJECT AND FIRST RESULTS

Radio Physics and Radio Astronomy, 2019
Purpose: Creating a radio telescope based on the MARK-4B antenna system being developed for telecommunication applications, determining the possibilities of using the broadband multirange operation of a beam wave-guided antenna system and to evaluate ...
O. M. Ulyanov, O. M. Reznichenko, V. V. Zakharenko, A. V. Antyufeyev, A. M. Korolev, O. M. Patoka, V. I. Prisiazhnii, A. V. Poichalo, V. V. Voityuk, V. N. Mamarev, V. V. Ozhinskii, V. P. Vlasenko, V. M. Chmil, V. I. Lebed, M. I. Palamar, A. V. Chaikovskii, Yu. V. Pasternak, M. A. Strembitskii, M. P. Natarov, S. O. Steshenko, V. V. Glamazdyn, A. S. Shubny, A. A. Kirilenko, D. Y. Kulik, A. A. Konovalenko, L. M. Lytvynenko, Ya. S. Yatskiv   +26 more
doaj   +1 more source