Results 101 to 110 of about 13,102,569 (286)

Passive Radar Using LEO Communication Satellite Signals: An Overview and Prospect

Leida xuebao
Compared to ground-based external radiation source radar, satellite signal-based external radiation source radar (i.e., satellite signal external radiation source radar) offers advantages such as global, all-time, and all-weather coverage, which can ...
Hongwei FU, Zhang ZHANG, Yu LUO, Zhichao ZHOU, Zhanye CHEN, Xin JIAN, Hao CHA   +6 more
doaj   +1 more source

Neuromorphic Near‐Sensor and In‐Sensor Computing Enabled by Next‐Generation Material‐Based Sensors

Advanced Science, EarlyView.
This Review presents a structural framework that classifies neuromorphic sensing into near‐sensor and in‐sensor architectures, clarifying physical coupling between sensing and computation. The framework connects neural and synaptic device functions with recent advances in optical, mechanical, and chemical sensing, compares energy consumption and ...
Su Yeon Jung, Gwang Ya Kim, Sejin Kim, Hyunjong Seo, Se Gi Lee, Sang Min Won, Dongjoon Rhee, Joohoon Kang   +7 more
wiley   +1 more source

An Authentication and Key Agreement Protocol for Satellite Communications

, 2014
[[abstract]]In 2009 and 2011, Chen et al. and Lasc et al. proposed two separate authentication schemes for mobile satellite communication systems. Unfortunately, their schemes are unable to protect security in the event of smart card loss. In this paper,
張真誠;CHang, Chin-Chen;*;Ch, Ting-Fang;Cheng, Ting-Fang;Hsiao-Ling, W;Wu, Hsiao-Ling
core  

A Machine Vision‐Guided Microphysiological Platform With Automated Microfluidics Enables Longitudinal Biomarker Monitoring and Emulation of Translationally Relevant Exposure Scenarios

Advanced Science, EarlyView.
A pneumatically actuated multi‐tissue microphysiological system is integrated with AI‐based machine vision and automatic sampling and replenishment systems. The platform allows for the emulation of translationally relevant long‐term pharmacokinetic exposure scenarios for multiple weeks while enabling longitudinal monitoring of response biomarkers ...
Jibbe Keulen, Yi Zhong, Laura Dangel, Sonia Youhanna, Reza Zandi Shafagh, Jinhye Ryu, Domnica‐Gabriela Gurau, Mathias Haag, Thomas E. Mürdter, Yingxin Liang, Iro Beligiani, Nicole Ziegler, Sabine Willems, Nayere Taebnia, Wouter van der Wijngaart, Volker M. Lauschke   +15 more
wiley   +1 more source

UNSW-IoTSAT: A hybrid testbed-derived dataset for enabling cybersecurity research in the smart satellite domain

Cyber Security and Applications
Satellite communications are rapidly evolving into the Internet of Things (IoT) era, driven by the rise of CubeSats and lightweight platforms that enable faster deployment cycles, reduced launch costs, and the integration of diverse, often unregulated ...
Osama Abdelhameed, Benjamin Turnbull, Nickolaos Koroniotis   +2 more
doaj   +1 more source

Anisotropic Memristive Switching in NbOCl2 Enabled by Directional Oxygen Ion Migration

Advanced Science, EarlyView.
This study investigates strongly orientation‐dependent memristive switching in anisotropic NbOCl2, observed exclusively along the in‐plane c‐axis. The switching originates from direction‐selective oxygen‐ion migration and vacancy propagation that modulate the Pd/NbOCl2 Schottky barrier, enabling short‐term plasticity.
Caokun Wang, Yun Ji, Sanchali Mitra, Yufei Shi, Haofei Zheng, Yee Sin Ang, Kah‐Wee Ang   +6 more
wiley   +1 more source

Engineering Ultrastable Intrinsic Radicals: Graphene Quantum Dots With NIR‐II Emission for Dynamic Deep‐Tissue Bioimaging

Advanced Science, EarlyView.
Stable radicals are attractive for photonic and quantum information technologies but are often limited by instability. We stabilize intrinsic radicals in graphene quantum dots via 2D polymerization of perylene derivatives, where bilayer defect confinement suppresses quenching (100–500 K).
Qin Xu, Yijie Hou, Bingzhe Wang, Tesen Zhang, Yupeng Liu, Shuaiqi Li, Maohua Chen, Guichuan Xing, Dongbo Guo, Songnan Qu   +9 more
wiley   +1 more source

Structural Analysis of Digital Transceiver Unit (DTU) for 400kg-Class Communication Satellite Considering Launch Environment

IEEE Access
Since Starlink’s introduction, global social and technical demands for satellite-based telecommunication systems have rapidly increased. In South Korea as well, research on communication satellites began several years ago.
Hyun-Guk Kim, Jiye Bak, Jungil Cho, Seong-Ju Lee, Kyoung Youl Park, Won-Seok Lee, Ki Chul Kim   +6 more
doaj   +1 more source

A pH‐Switchable Cerium Single‐Atom Enzyme for Peri‐Implantitis Therapy via JAK‐STAT Signaling Axis‐Mediated Macrophage Reprogramming

Advanced Science, EarlyView.
A pH‐switchable cerium single‐atom enzyme is developed for stage‐specific peri‐implantitis therapy. Acidic conditions trigger antibacterial peroxidase‐like activity, whereas neutral conditions activate an antioxidant superoxide dismutase ‐ and catalase ‐like enzymatic relay. This microenvironment‐adaptive catalytic strategy suppresses the IL‐6/JAK‐STAT
Xiaomin Xia, Haojie Wu, Xingyun Li, Lining Liu, Kaiqing Song, Jinpei Cui, Jie Liu, Jiaxuan Yin, Emtiaz Ahmed, Yusuke Yamauchi, Xue Li   +10 more
wiley   +1 more source

The Preliminary Design Of A Nano Satellite Engineering Model For Remote Sensing Expe [PDF]

, 2003
Nanosatellite means small satellites where the total mass are less than 10kg including the main payloads an Small satellite missions was not only driven by reduction of the space budgets but it was also made possible by of the technology and ...
Md. Said, Md. Azlin, Othman, Mohd Helmi, Zakaria, Kamal Azli, Kamal Adnan, Muhammad Shamsul, Syed Hassan, Syed Idris, Allaudin, Mohd Faizal   +5 more
core   +1 more source