Results 161 to 170 of about 7,276 (303)

Improvements in PPP by Integrating GNSS with LEO Satellites: A Geometric Simulation. [PDF]

Sensors (Basel)
Alghisi M, Zallemi N, Biagi L.
europepmc   +1 more source

Toward a Rational Design of Conjugated Copolymers with Oxygenated Side Chains for Boosting Thermoelectric Properties

Advanced Energy Materials, EarlyView.
The molecular design strategy that integrates both side chain and backbone engineering in diketopyrrolopyrrole‐based conjugated polymers to identify the optimal balance between doping efficiency and microstructural order is demonstrated. Comprehensive spectroscopic, electrochemical, morphological, and structural characterizations reveal that the ...
Taewoong Han, Suhui Sim, Hoimin Kim, Taewoong Yoon, Hyungju Ahn, Seungjoo Chang, Namgyu Park, Hajeong Kim, Shabaz Alam, Dongki Lee, Sungjun Park, Sungjoo Lee, Jaewon Lee, Boseok Kang   +13 more
wiley   +1 more source

Accuracy Bounds for Positioning of Geostationary Data Relays using LEO Satellites

, 2012
The use of Low Earth Orbit (LEO) satellites as navigation satellites for geostationary data relays promises positioning with centimetre accuracy. Thereby, the number of visible LEO satellites, the geometry of the LEO constellation, the antenna gains and ...
J.S. Knogl, P. Henkel, and C. Günther
core  

Integrated Communication and Navigation Measurement Signal Design for LEO Satellites with Side-Tone Modulation. [PDF]

Sensors (Basel)
Li X, Feng Y, Xue L.
europepmc   +1 more source

Comparative Insights and Overlooked Factors of Interphase Chemistry in Alkali Metal‐Ion Batteries

Advanced Energy Materials, EarlyView.
This review presents a comparative analysis of Li‐, Na‐, and K‐ion batteries, focusing on the critical role of electrode–electrolyte interphases. It especially highlights overlooked aspects such as SEI/CEI misconceptions, binder effects, and self‐discharge relevance, emphasizing the limitations of current understanding and offering strategies for ...
Changhee Lee, Zachary T. Gossage, Shinichi Kumakura, Shinichi Komaba   +3 more
wiley   +1 more source

Frequency Tracking and Synchronization Strategy for Low Earth Orbit Satellites Based on Compensation and Prediction

天地一体化信息网络
As an important supplement to the ground network, the low earth orbit (LEO) satellite network is an important component of the integrated network of space and earth. Due to the high moving speed of LEO satellites, a large Doppler frequency offset and its
DUAN Xianglong, LIU Liu, SU Zhaoyang, CAI Yuchen, GAO Yibo, YIN Yi, NING Lipeng   +6 more
doaj  

A Beam Hopping Scheme Based on Adaptive Beam Radius for LEO Satellites. [PDF]

Sensors (Basel)
Chen J, Jiang Q, Yan M.
europepmc   +1 more source

Decoupling Chemical and Mechanical Contributions to Capacity Fading in Ni‐Rich Cathodes for Sulfide‐Based All‐Solid‐State Batteries

Advanced Energy Materials, EarlyView.
Ni‐rich cathodes in sulfide‐based ASSBs undergo intertwined (electro)chemical and mechanical degradation. Here, a new diagnostic framework is presented to decouple each contribution by partitioning capacity fading into charge and discharge fading.
Jangwhan Seok, Chanyou Chung, Hyunbeom Lee, Subin Ahn, Seongeun Lee, Sangbin Park, Sunhyun Hwang, Jaeyoung Kim, Jeonghyun Seo, Sungwoo Noh, Juyeong Seong, Sangheon Lee, Won‐Sub Yoon   +12 more
wiley   +1 more source

Collision avoidance maneuver design based on multi-objective optimization

, 2014
The possibility of having collision between a satellite and a space debris or another satellite is becoming frequent. The amount of propellant is directly related to a satellite’s operational lifetime and revenue.
Morselli, A, Bernelli-Zazzera, F, Armellin, Roberto, Armellin, R, Bernelli-Zazzera, Franco, Morselli, Alessandro, Di Lizia, P, Di Lizia, Pierluigi, BERNELLI ZAZZERA, FRANCO   +8 more
core  

GNSS Radio Frequency Interference Monitoring from LEO Satellites: An In-Laboratory Prototype. [PDF]

Sensors (Basel)
Troglia Gamba M, Polidori BD, Minetto A, Dovis F, Banfi E, Dominici F.   +5 more
europepmc   +1 more source