Results 101 to 110 of about 68,865 (333)
Performance analysis of multi-relay DF cooperative communication system based on directional antenna
Dianxin kexue, 2016 In order to achieve reliable communication in multi-relay cooperative communication，the directional antenna combining multi-relay cooperative communication system and optimal relay selection decode-and-forward cooperative strategy was presented.Firstly ...
Mingwei WANG +3 more
doaj +2 more sources
Perancangan Dan Implementasi Antena Yagi 2.4 GHz Pada Aplikasi WIFI (Wireless Fidelity)
Jurnal Elkomika, 2013 ABSTRAK Penggunaan teknologi komunikasi dengan menggunakan kabel kini sudah tergantikan oleh teknologi komunikasi tanpa kabel, dimana kebanyakan pengguna menggunakan perangkat access point yang memiliki jangkauan pancaran terbatas karena pola radiasi ...
BUDI PRATAMA +2 more
doaj +1 more source
Optimizing Geographic Routing for Millimeter-wave Wireless Networks with Directional Antenna [PDF]
, 2009 Lin Cai +4 more
openalex +1 more source
Tailoring the Properties of Functional Materials With N‐Oxides
Advanced Functional Materials, EarlyView.The properties of materials bearing N‐oxide groups are often dominated by the polar N+─O− bond. It provides hydrophilicity, selective ion‐binding, electric conductivity, or antifouling properties. Many of the underlying mechanisms have only recently been discovered, and the interest in N‐oxide materials is rapidly growing.
Timo Friedrich +5 more
wiley +1 more source
Some Basic Radio System OPSEC Considerations [PDF]
, 2014 This is an unscientific introduction to basic radio frequency system OPSEC aspects that I have found to be overlooked and lacking in high security system deployments that may have benefited from ...
Davis, Joshua
core
Multifunctional Microstructured Surfaces by Microcontact Printing of Reactive Microgels
Advanced Functional Materials, EarlyView.Reactive poly(N‐vinylcaprolactam‐co‐glycidyl methacrylate) microgels are used as functional inks to create surface‐grafted arrays on glass via microcontact printing. The patterns (10–50 µm widths and spacings) enable stable binding and post‐functionalization with dyes and peptides.
Inga Litzen +4 more
wiley +1 more source
UWB Antenna with Enhanced Directivity for Applications in Microwave Medical Imaging
SensorsMicrowave medical imaging (MMI) is experiencing a surge in research interest, with antenna performance emerging as a key area for improvement. This work addresses this need by enhancing the directivity of a compact UWB antenna using a Yagi-Uda-inspired ...
Dawar Awan +4 more
doaj +1 more source
Impact of Directional Antennas on Ad Hoc Routing [PDF]
, 2003 Romit Roy Choudhury, Nitin H. Vaidya
openalex +1 more source
Advanced Functional Materials, EarlyView.A unidirectional cerebral organoid–organoid neural circuit is established using a microfluidic platform, enabling controlled directional propagation of electrical signals, neuroinflammatory cues, and neurodegenerative disease–related proteins between spatially separated organoids.
Kyeong Seob Hwang +9 more
wiley +1 more source
A Reconfigurable WiMAX Antenna for Directional and Broadside Application
International Journal of Antennas and Propagation, 2013 A novel reconfigurable compact patch array antenna for directional and broadside application is proposed. The presented antenna has successfully been able to function for directional beam at 320° or 35° and divisive broadside beam at 43° and 330°.
M. Jusoh +3 more
doaj +1 more source