Results 71 to 80 of about 4,063,393 (390)

Optimization of the Antenna Array with Cosequences Pattern

Известия высших учебных заведений России: Радиоэлектроника, 2016
The method of partial directional diagrams (PDD) synthesized vertical omnidirectional in azimuth plane antenna arrays (AR) with cosequences PDD form in the vertical plane. The AR optimum height on the criterion of maximum gain is determinated.
A. D. Frantsuzov
doaj  

Design and analysis antennas of transverse polarization on the dielectric waveguide

EURASIP Journal on Wireless Communications and Networking
This paper addresses the issue of constructing millimeter band antennas using dielectric waveguide structures. A new type of linear antenna, incorporating metal pins on the side walls of the grooved dielectric waveguide, is proposed for generating ...
Mohamed N. Shaaban, Aydar R. Nasybullin, Yuri E. Sedelnikov   +2 more
doaj   +1 more source

Soft‐Layered Composites with Wrinkling‐Activated Multi‐Linear Elastic Behavior, Stress Mitigation, and Enhanced Strain Energy Storage

Advanced Engineering Materials, EarlyView.
In this study, exciting new bi‐/multi‐linear elastic behavior of soft elastic composites that accompany the activation of wrinkling in the embedded interfacial layers is analyzed. The new features and performance of these composite materials, including dramatic enhancements in energy storage, can be tailored by the concentration of interfacial layers ...
Narges Kaynia, Nicholas Xuanlai Fang, Mary C. Boyce   +2 more
wiley   +1 more source

News Improved: NPR's Transition from Public Radio to Public Media [PDF]

, 2011
In 2007, National Public Radio adopted a multiyear plan to increase the organization's digital footprint and begin transforming itself from a public radio company to a public media company.

core  

The radio luminosity, black hole mass and Eddington ratio for quasars from the Sloan Digital Sky Survey

, 2008
We investigate the $\mbh- \sigma_*$ relation for radio-loud quasars with redshift ...
Abazajian K, Akritas M G, Bonning E W, Boroson T A, Chen Hu, Dasyra K M, Drory N, Ferrarese L, Gebhardt K, Greene J E, Greene J E, Greene J E, Greene J E, Grupe D, Heckman T M, Ho L C, Ho L C, Kai Huang, Kaspi S, Kaspi S, Komossa S, Komossa S, Lacy M, Laor A, Laor A, Lauer T R, LaValley M P, Liu Y, Nelson C H, Netzer H, Onken C A, Peterson B M, Richards G T, Salviander S, Schneider D P, Shen J-J, Shields J C, Sikora M, Storey P J, Strittmatter P A, Terashima Y, Tremaine S, Treu T, Vanden B, Wang J M, Wang R, Wei-Hao Bian, Whalen D J, Woo J H, Woo J H, Xu C, Yan Xu, Yan-Mei Chen, Yuan F, Zhou H, Zhou H Y   +55 more
core   +1 more source

Current Trends and Future Perspective for Cold Spray Metal‐Ceramic Composites

Advanced Engineering Materials, EarlyView.
The use of cold spray (CS) technology for creating cermet deposits, combining ceramic and metallic components, is advancing rapidly. Cermets offer excellent temperature handling and erosion resistance for diverse applications. This review outlines the current state of the art, focusing on the deposition dynamics and strategies to optimize the ...
Romario A. Wicaksono, Amir Ardeshiri Lordejani, Sara Bagherifard   +2 more
wiley   +1 more source

Discovery of a Radio-Selected z ~ 6 Quasar

, 2011
We present the discovery of only the second radio-selected, z ~ 6 quasar. We identified SDSS J222843.54+011032.2 (z=5.95) by matching the optical detections of the deep Sloan Digital Sky Survey (SDSS) Stripe 82 with their radio counterparts in the ...
Abazajian, Becker, Carilli, Fan, Fan, Fan, Ferrarese, Gordon T. Richards, Gregory R. Zeimann, Hodge, Hopkins, Jacqueline A. Hodge, Jiang, Jiang, Jiang, Khatri, Kimball, McGreer, McGreer, McMahon, Prevot, Richard L. White, Richards, Robert H. Becker, Spencer A. Stanford, Vanden Berk, White, White, Willott, Willott, Willott, Worseck   +31 more
core   +1 more source

Ultra‐Shallow Flat Heat Waves on Low Thermal Conductivity Flexible Polyimide Substrate for Millisecond Thermal Analysis of Materials and Bioelectronic Applications

Advanced Engineering Materials, EarlyView.
An electronic system is presented consisting of a silver thin‐film electrode on a polyimide substrate working both as a heating element and a resistive temperature sensor, generating millisecond heat pulses with very fast heating and cooling rates and a flat peak temperature with a tunable duration.
Bahman K. Boroujeni, Jan Frede, Simon T. Herrmann, Natalie Heinen, Hans Kleemann, Stephanie Pfaender   +5 more
wiley   +1 more source

RANCANG BANGUN SITEM E-RADIO SUARA AL-MANAR UNIVERSITAS MUHAMMADIYAH PONOROGO

Multitek Indonesia, 2019
Penelitian ini mengangkat tema rancang bangun sitem radio online di radio Suara Almanar Ponorogo. Sistem yang di bangun berupa radio streaming menggunakan server edcaststandalone dengan metode satu pc desktop sebagai source client server dan sebagai ...
Didik Riyanto, Ghulam Asrofi Buntoro
doaj   +1 more source