Results 191 to 200 of about 11,866 (295)

Hierarchical Resource Management for Mega-LEO Satellite Constellation. [PDF]

Sensors (Basel)
Gou L, Bian D, Nie Y, Zhang G, Zhou H, Shi Y, Zhang L.   +6 more
europepmc   +1 more source

Satellite Telemetry and Command using Big LEO Mobile Telecommunications Systems

, 1998
Various issues associated with satellite telemetry and command using Big LEO mobile telecommunications systems are presented in viewgraph form. Specific topics include: 1) Commercial Satellite system overviews: Globalstar, ICO, and Iridium; 2) System ...
Huegel, Fred
core  

Multiscale Perspectives on Perovskite Instability: From Atomistic Deformation to Device Degradation in Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
Multiscale perspectives on how excess charges in soft lead halide perovskites induce operational instability in photovoltaic devices are presented. Localized carriers formed under thermodynamic non‐equilibrium states modify atomistic interactions and drive lattice distortions, accelerating device degradation.
Joo‐Hong Lee, Donghyeon Lee, Seoyoon Lee, Jin‐Wook Lee, Mansoo Choi, Min‐cheol Kim, Namyoung Ahn   +6 more
wiley   +1 more source

Simulation and Verification Platform for 5G-Integrated Low Earth Orbit Satellite Network Protocols Based on EXata

天地一体化信息网络
In response to the current lack of simulation and verification platforms specifically designed for 5G-integrated LEO network protocols, a system-level simulation platform for 5G-integrated LEO satellite networks had been implemented based on the EXata ...
HE Lei, LIU Zhanjun, LIANG Chengchao, GUAN Sijia, CHEN Qianbin   +4 more
doaj  

Handover Scheme in LEO Satellite Networks Based on QoE for Streaming Media Services. [PDF]

Sensors (Basel)
Feng H, Zhu L.
europepmc   +1 more source

Dual Impact of Long‐Lived Localized Carriers Induced by Restricted Hole Transfer in Organic Photovoltaics and Photocatalytic Hydrogen Evolution

Advanced Energy Materials, EarlyView.
This work clarifies why organic semiconductors perform differently in photovoltaic devices and photocatalytic nanoparticles. By examining D18:Y5 and PM6:Y6 systems, we show how aggregation, exciton lifetime, and interfacial charge transfer behavior govern energy‐conversion pathways.
Gayoung Ham, Sanghyeok An, Wooteak Jung, Hyun Min Kwon, Seonghyeon Kang, Jaehyuk Lee, Sowon Kim, Changwoo Park, Damin Lee, Young Yong Kim, Sungjin Jo, Chang Yun Son, Sae Byeok Jo, Dae Sung Chung, Hyojung Cha   +14 more
wiley   +1 more source

Adaptive Resource Optimization for LoRa-Enabled LEO Satellite IoT System in High-Dynamic Environments. [PDF]

Sensors (Basel)
Zhang C, Peng H, Ji Y, Hong T, Zhang G.
europepmc   +1 more source

Synthetic Surface Design of Transparent Electrodes for Enhanced Molecular Contact in Perovskite Solar Cells

Advanced Energy Materials, EarlyView.
A simple solution‐based ITO surface treatment unlocks the full potential of phosphonic‐acid SAMs by balancing surface hydroxylation, conductivity, and homogeneity. Moderately hydroxylated interfaces yield uniform, electronically favourable contacts, enhancing charge extraction, stability, and thermal‐cycling resilience, with broad applicability across ...
Rik Hooijer, Sunwoo Kim, Sebastian Klenk, Hao Zhu, Cem Yilmaz, Yenal Yalcinkaya, Doyun Im, Anna S. Backeberg, Jian Huang, Meriem Bouraoui, Ali Buyruk, Esma Ugur, Clément Maheu, Achim Hartschuh, Frédéric Laquai, Lukas Schmidt‐Mende, Georg S. Duesberg, Sangwook Lee, Erkan Aydin   +18 more
wiley   +1 more source

A Service-Caching Strategy Assisted by Double DQN in LEO Satellite Networks. [PDF]

Sensors (Basel)
Luan Y, Sun F, Zhou J.
europepmc   +1 more source

Suppressing Dendrite Formation through Au‐Driven Interfacial Engineering for Solid‐State Lithium‐Metal Batteries

Advanced Energy Materials, EarlyView.
A thin gold nanolayer on lithium metal enables stable and uniform lithium plating in solid‐state batteries, enabling nearly 1 year and 11 months of continuous operation. The conductive coating lowers interfacial resistance, suppresses dendrite growth, and improves cycling stability, attributed to homogeneous deposition of Li+ on the gold layer ...
Natalia Voronina, Seyo Oh, Bibin Jose, Jongchan Park, Sun Kim, Jinhong Park, Kwang Heo, Jae‐Hong Lim, Chan‐Woo Lee, Payam Kaghazchi, Seung‐Taek Myung   +10 more
wiley   +1 more source