Results 81 to 90 of about 2,853,694 (244)

Tailoring Symmetry Breaking in Engineered van der Waals Superlattices

open access: yesAdvanced Materials, EarlyView.
We pioneer a scheme to tailor superpotentials in graphene based on intrinsic substrate electronic orders rather than twist angle. The resulting superpotential folds graphene's Dirac cones to either Γ$\Gamma$ or K‐points, leading to distinct symmetry behaviors.
Keda Jin   +7 more
wiley   +1 more source

Large Scale LEO Satellite Internet Routing Algorithm Based on Load Balancing

open access: yes天地一体化信息网络, 2022
The expanding market demand has set off an upsurge of large-scale LEO constellation deployment.With the characteristics of large bandwidth, low delay and continuous coverage, it provides broadband internet services for users all over the world.Aiming at ...
Yijie WANG   +4 more
doaj  

CREATION OF THE ARCHITECTURE OF "DISTRIBUTED SATELLITE" FOR LOW-ORBITAL INFORMATION-TELECOMMUNICATION SYSTEMS BASED ON THE GROUPING OF MICRO AND NANO SATELLITES

open access: yesАвіаційно-космічна техніка та технологія, 2018
Presented are the results of an analysis of the growing interest in the use of low Earth orbits (up to 1500 km high) for the introduction and development of the Internet of things (Internet of Things - IoT).
Михаил Ефимович Ильченко   +4 more
doaj   +1 more source

International Internet Preservation Consortium 2011 General Assembly, May 9-13, 2011

open access: yes, 2011
Programme for the 2011 International Internet Preservation Consortium General ...
International Internet Preservation Consortium
core  

Polyphenol‐Inspired Materials for Agricultural Applications

open access: yesAdvanced Materials, EarlyView.
This review outlines the use of polyphenol‐inspired materials for sustainable agriculture, highlighting their molecular design, interfacial assembly, structure–property relationships, and prospects toward precision agriculture, climate resilience, ecosystem protection, and circular bioeconomy strategies.
Haofu Liu   +8 more
wiley   +1 more source

Vulnerability Assessment of Starlink User Terminals: Firmware and gRPC Communication Analysis

open access: yesIEEE Access
Modern society relies on communication networks; however, geographic constraints and infrastructure disparities perpetuate the global digital divide. Low Earth orbit (LEO) satellite communication has emerged as a promising solution.
Seoyul Kim, Seunghun Han
doaj   +1 more source

Application of the Systems Engineering methodology to the design of the AOCS of an Earth Observation satellite [PDF]

open access: yes, 2013
This document describes the application of enhanced functional flow block diagrams (eFFBD) on the attitude and orbital control system (AOCS) of an Earth Observation satellite.
Lizy-Destrez, Stéphanie   +2 more
core  

Atomic‐Scale Detection of Néel Vector Switching in the Single‐Layer A‐Type Antiferromagnet Cr2S3‐2D

open access: yesAdvanced Materials, EarlyView.
Interfacial electron donation from graphene redistributes charge within single‐layer Cr2S3‐2D, preferentially accumulating at the lower Cr/S plane. The resulting minute magnetic imbalance lifts the equivalence of the two magnetic sublayers, enabling atomic‐resolution identification and field‐induced control of Néel‐vector states in a two‐dimensional A ...
Affan Safeer   +11 more
wiley   +1 more source

Tech Diplomacy: A Comprehensive Framework for Addressing Critical Technologies

open access: yesENP Engineering Science Journal
This paper discusses the problem of addressing critical technologies through tech diplomacy. The latter hasrecently emergedas a strategic response to manage the geopolitical consequences that are induced by rivalry over the control of critical ...
Kamel D. Remili   +3 more
doaj   +1 more source

Sub‐Nanometer Cobalt on Tungsten Titanium Carbide MXene (W2TiC2Tx): An Electrocatalyst for Highly Efficient and Stable Alkaline Hydrogen Evolution at Industrial‐Scale Current Density

open access: yesAdvanced Materials, EarlyView.
A novel W2TiC2Tx MXene prepared through a MAX‐phase route supports sub‐nanometer Co for highly efficient alkaline hydrogen evolution. Strong Co–W interfacial interactions optimize hydrogen adsorption and catalytic activity, enabling low overpotentials of 63 mV at 10 mA cm−2, small Tafel slope of 44.3 mV dec−1, and exceptional durability at industrially
Xiaopeng Liu   +15 more
wiley   +1 more source

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