Results 91 to 100 of about 59,947 (271)

Millimeter wave satellite concepts, volume 1 [PDF]

The identification of technologies necessary for development of millimeter spectrum communication satellites was examined from a system point of view.
Gallagher, J. G., Hilsen, N. B., Holland, L. D., Thomas, R. E., Wallace, R. W.   +4 more
core   +1 more source

Recent Advances in Electrospun Nanofibers for Triboelectric Nanogenerators: Performance Enhancement Strategies and Emerging Applications

Advanced Materials, EarlyView.
This review highlights recent advances in electrospun nanofiber‐based triboelectric nanogenerators, emphasizing how material design, fiber architecture, and interface engineering collectively enhance output performance and mechanical durability. Key developments in porous, aligned, core‐shell, and hierarchical nanofibers are discussed alongside ...
MD Fajla Rabbi, Jee Hwan Ahn, Duy Linh Vu, Kyoung Kwan Ahn   +3 more
wiley   +1 more source

Perspectives of the use and development of the equipment of the millimeter radio communication equipment by communication operators

Физика волновых процессов и радиотехнические системы, 2018
The article highlights advantages and examples of using millimeter-wave packet radio communication equipment for telecom operators. Specific features of propagation of radio waves of millimeter range in the atmosphere are indicated.
D.S. Klyuev, S.A. Korshunov, S.V. Sitnikova, Yu.V. Sokolova, S.E. Platonov   +4 more
doaj  

Increased Endurance of Nonvolatile Photonics Enabled by Nanostructured Phase‐Change Materials

Advanced Materials, EarlyView.
Tapered and segmented islands of the phase‐change material (PCM) antimony selenide (Sb2Se3) integrated on silicon microring resonators enable ultra‐low‐loss, high‐endurance, non‐volatile photonic tuning. The nanostructured PCM design suppresses interfacial scattering and thermal stress, achieving record endurance over 100 million electrical switching ...
Jayita Dutta, Andrew Tang, Brian Mills, Rui Chen, Arnab Manna, Gokul Nath SJ, Virat Tara, Dennis Callahan, Cosmin Constantin Popescu, Juejun Hu, Arka Majumdar   +10 more
wiley   +1 more source

High‐Sensitivity Terahertz Gas Sensing Enabled by Undercut Metal‐Dielectric‐Metal Metamaterial

Advanced Materials Interfaces, EarlyView.
A terahertz (THz) metamaterial gas sensor is demonstrated using a metal–dielectric–metal (MDM) absorber with an undercut dielectric layer, which enlarges the gas‐replaced volume and strengthens refractive‐index perturbation of the resonant mode. A reflection dip at 0.766 THz is observed, and acetone–nitrogen tests yield concentration‐dependent shifts ...
Naoki Inomata, Yuki Sakai, Yoshiaki Kanamori   +2 more
wiley   +1 more source

Millimeter waves in communication systems as a prospect for the development and application of robotic means and complexes

Физика волновых процессов и радиотехнические системы
Background. Millimeter-wave communication systems are becoming more and more relevant in conditions of saturation of the low-frequency spectrum and growing requirements for data transmission speed.
Vladislav R. Skrynskij
doaj   +1 more source

Gold Nanorods in Cardiac Millitissues: Assessing Mechanical and Contractile Dynamics in a Living Engineering Myocardium Model

Advanced Materials Technologies, EarlyView.
This study presents a novel platform for assessing the active mechanical behavior of living cardiac microbundles through localized nanoindentation, integrated with temperature regulation and dual‐camera imaging systems. The developed system enables quantitative evaluation of dynamic micromechanics in engineered cardiac tissues in vitro, offering ...
Lihua Lou, Lia Paolino, Alberto Sesena Rubfiaro, Jin He, Arvind Agarwal   +4 more
wiley   +1 more source

A depolarization and attenuation experiment using the CTS satellite. Volume 1: Experiment description [PDF]

An experiment for measuring precipitation attenuation and depolarization on the Communications Technology Satellite (CTS) 11.7 GHz downlink is described.
Bostian, C. W., Holt, S. B., Jr., Kauffman, S. R., Manus, E. A., Marshall, R. E., Stutzman, W. L., Wiley, P. H.   +6 more
core   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

ETS-5, ETS-6, and COMETS projects in Japan [PDF]

Three satellite communication projects now in progress in Japan are described. The first is a project to establish a telecommunication network for tele-education, TV conference, and tele-medicine in the Asia-Pacific region by using the Japan's ...
Iida, Takashi, Obara, Noriaki, Wakana, Hiromitsu   +2 more
core   +1 more source