Results 91 to 100 of about 25,846 (298)

Rapidly Deployable Satellite-Based Emergency Communications Infrastructure

IEEE Access
Communication infrastructure is crucial during emergencies because it ensures reliable coordination and information dissemination for effective search and rescue missions.
Francis Kagai, Philip Branch, Jason But, Rebecca Allen, Mark Rice   +4 more
doaj   +1 more source

Secure Communication in Non-Geostationary Orbit Satellite Systems: A Physical Layer Security Perspective

IEEE Access, 2019
Satellite communication systems serve as an indispensable component of wireless heterogeneous networks in 5G era for providing various critical civil and military applications.
Yeqiu Xiao, Jia Liu, Yulong Shen, Xiaohong Jiang, Norio Shiratori   +4 more
doaj   +1 more source

Engineering Neuronal Network Connectivity Through Precise and Scalable Electrical Modulation

Advanced Science, EarlyView.
This study presents a scalable all‐electrical method for precise neuronal‐circuit reconfiguration based on high‐density microelectrode arrays. By employing biologically inspired plasticity rules, targeted connectivity changes were successfully induced and quantified across diverse neuronal preparations.
Sreedhar S. Kumar, Yannaël Bossard, Rachel Sava, Tobias Gänswein, Lorenca Sadiraj, Jean‐Samuel Dupré, Manuel Schröter, J. Gray Camp, Fernando Cardes, Julian Bartram, Andreas Hierlemann   +10 more
wiley   +1 more source

Optimizing Resource Planning for Next-Generation Satellite Communication Systems [PDF]

peer reviewedA satellite communication system will be vital in providing services for increasingly heterogeneous 5G and beyond applications. However, before the satellite can be launched or operated in space, the service operator and manufacturers ...
ABDU, Tedros Salih, HA, Vu Nguyen, CHATZINOTAS, Symeon, LAGUNAS, Eva   +3 more
core  

Natural Resistance to Ovarian Hyperstimulation Syndrome in Estrildid Finches Reveals Macrophage GPR183 as a Potential Therapeutic Target

Advanced Science, EarlyView.
Ovarian macrophage depletion reverses OHSS resistance in estrildid finches and exacerbates OHSS symptoms in rats. Activating macrophage GPR183 alleviates OHSS by reducing pro‐inflammatory factors, increasing immunomodulatory molecules, remodeling CD44/SDC4‐mediated communication, and restoring immune homeostasis.
Xiaofei Yan, Yongjie Huang, Jiabao Yang, Su Ma, Songsong Liu, Xuan Huang, Juergen Brosius, Huaping Zheng, Bing Yao, Li Chen, Shanshan Lai, Cheng Deng   +11 more
wiley   +1 more source

An Efficient Authentication Protocol for Mobile Satellite Communication Systems

, 2009
[[abstract]]Nowadays, wireless communication becomes more and more popular. In 2003, Hwang et al. proposed an authentication scheme for mobile satellite communication systems.
Chang, Y. F. ; Chang, C. C
core   +1 more source

Coupled Vacancy and Phonon‐Scattering Engineering Drive Defect Evolution Toward Multifunctional High‐Performance Bi2Te3 Thermoelectrics

Advanced Science, EarlyView.
ZnSb reduces carrier concentration and suppresses Te volatilization, while Se substitution within QLs softens phonons and enhances anharmonicity. Swapped bilayers near twin boundaries strengthen phonon scattering and interlayer bonding. As a result, the optimal sample achieves an ultra‐high zT ∼1.51, cooling temperature difference of ∼70 K, power ...
Ruiheng Li, Minwen Yang, Huangshui Ma, Jie Zheng, Shengqiang Cui, Xiaobo Tan, Xuri Rao, Xiang An, Zongxiang Kan, Siqi Huo, Jing Shuai, Min Hong, Ran Ang   +12 more
wiley   +1 more source

A cellular neural networks based DiffServ switch for satellite communication systems

, 2003
The importance of DiffServ technique, based on cellular neural network (CNN), for satellite communication systems is discussed. In satellite communication systems, DiffServ policy computational capabilities are placed at the edge points.
Gubellini R., Pecorella T., Tarchi D., Fantacci R.   +3 more
core  

Ray-tracing model of satellite to aircraft communication in aeronautical satellite communication systems

, 1999
In aeronautical traffic systems, reliable propagation simulation and modelling are absolutely necessary to achieve safe aeronautical communication.
Lai, K., Lai, H. K., Cherniakov, M., Cherniakov, M. S.   +3 more
core   +1 more source

Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures

Advanced Science, EarlyView.
Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu, Liya Zheng, Ruopeng Liu, Chunlin Ji, Bin Li   +4 more
wiley   +1 more source