Results 151 to 160 of about 107,844 (297)

Integrated Routing and Switching Technology for LEO Satellites

天地一体化信息网络
Low Earth Orbit (LEO) satellites are capable of delivering more precise and efficient multi-source data fusion information services. This paper delves deep into the impact exerted by the on-orbit characteristics of low-orbit satellites on the ...
ZHANG Shiceng, ZHANG Dong, AN Shaoyi, SUN Yanhong, WANG Limin   +4 more
doaj  

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source

Characterisation of low earth orbit satellite channels

, 1999
Satellite propagation studies had been widely covered in various literature. Researchers had derived numerous models to describe various aspects of the channel. Many such works were done for the microwave frequencies using geostationary satellites or helicopters.
openaire   +1 more source

Interference analysis in low earth orbit satellite systems

, 2002
The LEO satellite systems will play an important role in the future personal communications networks because of their several advantages over GEO and MEO satellite systems. The extensive frequency reuse in a LEO Satellite System, in order to enhance the capacity, produces cochannel interference no matter what kind of multiple access scheme it is based ...
Torres Torres, Elsa Yolanda; 490085, Torres Torres, Elsa Yolanda   +1 more
openaire   +1 more source

Datagram routing for low earth orbit satellite networks

, 2012
published_or_final_version ; Electrical and Electronic Engineering ; Master ; Master of ...
openaire   +2 more sources

Elastomeric Micro‐Balloons for Remote Control of Cerebral Blood Flow and Real‐Time In vivo Imaging of Rodent Brain Response to Hypoperfusion

Advanced Materials, EarlyView.
This study reports the fabrication of MRI‐compatible elastomeric micro‐balloons via a multi‐step bubble casting process, where the monolithic elastomeric wall is selectively stiffened for reversible and controlled inflation and elasticity, depending on the target vessels for graded occlusion of cerebral arteries.
Jong Bin Kim, Jinghui Wang, Yinding Chi, Jingxian Wu, Alicia Ng, Guanda Qiao, Honglin Tan, Miroslaw Janowski, Piotr Walczak, Yajie Liang, Shu Yang   +10 more
wiley   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Resilient Intelligent Routing Technology for LEO Satellite Networks Based on Environmental Reliability Prediction

天地一体化信息网络
Low earth orbit satellite networks face severe reliability challenges in the complex space environment, where conventional routing protocols, with their reactive mechanisms, struggle to address the link instability risks induced by space environment ...
Chen Xiao, Ji Zhe, Wu Sheng, Ji Sijing, Sheng Min   +4 more
doaj  

The optimization of low Earth orbit satellite constellation visibility with genetic algorithm for improved navigation potential. [PDF]

Sci Rep
Qin C, Gao Y, Wang Y.
europepmc   +1 more source

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

Advanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz, Lukas E. Lehner, Stepan Demchyshyn, Bekele Hailegnaw, Phillip Jahelka, Magdalena Breitwieser, Sercan Özen, Andrea Denker, Jürgen Bundesmann, Alina Hanna Dittwald, Dilara Karabulut, Philipp Tockhorn, Steve Albrecht, Felix Lang, Markus C. Scharber, Michael D. Kelzenberg, Harry A. Atwater, Martin Kaltenbrunner   +17 more
wiley   +1 more source