Results 51 to 60 of about 1,582 (191)

Key Technologies and Engineering Practices for On-Orbit Dynamics of Large and Complex Spacecraft [PDF]

中国工程科学
With the deepening implementation of major aerospace projects, large and complex spacecraft are evolving toward larger scales, higher performance, and multi-payload integration, leading to increasingly complex on-orbit dynamics issues. This study focuses
Yujun Chen, Mingle Deng, Feng Li, Shaokui Liu, Fuxiang Dong, Shiwei Pang, Yuandong Ji, Youxia Li, Zhicheng Zhou   +8 more
doaj   +1 more source

Perovskite Photodetectors at the Intelligence Frontier: From Tunable Materials to Adaptive Optoelectronic Systems

Carbon Energy, EarlyView.
This comprehensive review presents a progressive roadmap for perovskite vision detectors. Centered on perovskite‐based artificial perception, the graphic illustrates a systematic evolution: starting with fundamental material engineering and device architectures, advancing toward complex functional strategies such as flexible neuromorphic imaging ...
Chenglong Li, Wei Qu, Deepak Kumar, Naini Jain, Nur Wardina Syahirah binti Mohamad Fadil, Nur Najiha binti Ahmad Rasid, Emannuel Kymakis, Maria Vasilopoulou, Chunxiong Bao, Feng Gao, Peng Gao, Sanjeev Kumar Sharma, Mohammad Khaja Nazeeruddin, Abd. Rashid bin Mohd Yusoff, Haotong Wei   +14 more
wiley   +1 more source

Exponential Attitude⁃Orbit Coordinated Control for Gravitational⁃Wave Detection Spacecraft Formation with Large⁃Scale Communication Delays

Transactions of Nanjing University of Aeronautics and Astronautics
This paper concerns the exponential attitude-orbit coordinated control problems for gravitational-wave detection formation spacecraft systems. Notably， the large-scale communication delays resulting from oversized inter-satellite distance of space-based ...
XING Youpeng, SONG Yinsheng, YIN Zeyang, CHEN Xiaofang   +3 more
doaj   +1 more source

Engineering Halide Perovskites With Chalcogen‐Based Compounds: Insights Into Stability, Interfaces, and Device Integration

Carbon Energy, EarlyView.
Chalcogen‐based compounds are explored as versatile tools to enhance the stability and performance of halide perovskites. Their roles in defect passivation, ion migration suppression, and interface engineering are analyzed, along with impacts on device efficiency.
Atanu Jana, Deblina Das, Sourav Mal, Tarak Nath Mandal, Sangeun Cho   +4 more
wiley   +1 more source

Molecular‐Level Modulation of Proton Transport via Electron‐Proton Coupling in Bio‐p‐n Junctions

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
We developed a pH‐sensing device capable of operating in biological environments. A biohybrid p–n junction was constructed using bacteriorhodopsin (bR) and the photoconductive polymer poly(3‐hexylthiophene) (P3HT). Under light illumination, the photocurrent exhibits distinct transitions across various pH gradients, demonstrating the system's high ...
Chen Song, Yujia Lv, Haotian Pang, Haoqi Fan, Jiayin Huang, Weibin Zhou, Dan Luo, Aochen Wang   +7 more
wiley   +1 more source

RF-Assisted Uncertainty Cone Reduction in Free-Space Optical Inter-Satellite Links

IEEE Open Journal of the Communications Society
One of the space communications industry’s current focuses is developing high-throughput communication terminals for satellite-to-satellite communication links.
Elena Fernandez-Nino, Juan A. Fraire, Adriano Camps, Joan A. Ruiz-De-Azua   +3 more
doaj   +1 more source

ZnO Nanowires by Chemical Bath Deposition: A Review on Doping and Functional Devices

Electron, EarlyView.
This review reports the most recent and well‐established state‐of‐the‐art and scientific challenges related to the doping of ZnO nanowires by chemical bath deposition, encompassing native point and hydrogen‐related defects, as well as extrinsic dopants.
Clément Lausecker, Adrien Baillard, Estelle Appert, Vincent Consonni   +3 more
wiley   +1 more source

A μrad Accuracy and nW Detection Sensitivity Four-Quadrant Heterodyne Coherent Angular Measurement System

Photonics
In gravitational wave measurement and inter-satellite laser communication systems, the relative rotation and motion between the transmitter and receiver terminals introduces small angular deviations over a link distance of thousands of kilometers, which ...
Ziqi Zhang, Shoufeng Tong, Peng Lin, Dixiang Zeng, Xiaonan Yu   +4 more
doaj   +1 more source

Overcoming spectral limits of perovskite photodetectors for the infrared region

InfoScience, EarlyView.
Infrared (IR) photodetectors are vital for modern optoelectronics, but traditional inorganic semiconductors face limitations in cost, processing, and bandgap tunability. This review provides a summary of advanced strategies to extend metal halide perovskites into the IR region, categorizing approaches into intrinsic material engineering, physical ...
Jiean Li, Bobo Li, Mingxia Qiu, Wang Zhang, Xuan Fang   +4 more
wiley   +1 more source

Multi‐command wearable magnetic human‐machine interface enabled by low‐noise sensing and time‐series deep learning

InfoScience, EarlyView.
This study integrates a wrist‐worn sensing platform based on a low‐noise planar Hall magnetoresistive sensor with time‐series deep learning to enable long‐range, single‐sensor, multi‐command gesture recognition with high accuracy. Further evaluations show reliable generalization across different days, previously unseen users, wearing‐position ...
Guannan Mu, Proloy Taran Das, Jan Schmidtpeter, Andreas Knüpfer, Rui Xu, Denys Makarov   +5 more
wiley   +1 more source