Results 171 to 180 of about 55,438 (305)

Multi-Level Intelligent Decision Optimization Framework for 6G Satellite Internet

open access: yes天地一体化信息网络
With the development of 6G communication technology, LEO satellite Internet has become a key technology for constructing space-terrestrial integrated networks due to its advantages of global coverage and low latency.
LIU Huwei, ZHOU Li
doaj  

Signatures of Edge States in Antiferromagnetic Van der Waals Josephson Junctions

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The combination of superconductivity and magnetic textures leads to unconventional superconducting phenomena, including new correlated and topological phases. Van der Waals (vdW) materials emerge as a versatile platform for exploring the interplay between these two competing orders.
Celia González‐Sánchez   +10 more
wiley   +1 more source

A nova compreensão do setor das telecomunicações no Brasil em um contexto de inovações tecnológicas, conceituais e regulatórias [PDF]

open access: yes
Orientador: Prof. Dr. Emerson GabardoTese (doutorado) - Universidade Federal do Paraná, Setor de Ciências Jurídicas, Programa de Pós-Graduação em Direito.
Saikali, Lucas Bossoni
core  

Thermal‐Driven Diode Polarity Switching From Competing Helical Superconducting States in WTe2/α‐Fe2O3 Heterostructures

open access: yesAdvanced Materials, EarlyView.
A Nb‐proximitized Josephson junction based on a WTe2/α‐Fe2O3 heterostructure exhibits a robust superconducting diode effect with programmable polarity. The diode direction can be trained by magnetic fields and switched by temperature cycling, revealing tunable finite‐momentum pairing states and competing superconducting states in symmetry‐broken ...
Enze Zhang   +9 more
wiley   +1 more source

Multi-Layered Security Framework for Document Access Control

open access: yes, 2007
由於網路技術的快速發展,企業組織所建立的內部網路其所及範圍與複雜度都日趨增加。同時隨著病毒與木馬後門等惡意程式的攻擊型態產生, 以往被視為安全可信賴的內部網路環境,其安全性問題受到極大的威脅。新型的木馬後門程式利用網路穿隧技術,透過標準的網路服務通訊埠,輕易地穿透企業防火牆進行內外的溝通與監視。而另一方面,透過內部網路進行文件的分享與存取,已成為各企業組織運作不可缺少的部分,文件安全性的問題尤其關係整個企業組織的發展,如何才能確保其安全,避免遭受可能的網路攻擊,便成為主要的研究課題。在本論文中 ...
Pan, Chi-Chien, 潘啟諫
core  

n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz

open access: yesAdvanced Materials, EarlyView.
Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis   +19 more
wiley   +1 more source

Communication fault injection in multi-protocol applications

open access: yes, 2009
Aplicações de rede com altos requisitos de dependabilidade devem ser testadas cuidadosamente em condições de falhas de comunicação para aumentar a confiança no seu comportamento apropriado na ocorrência de falhas.
Cristina Ciprandi Menegotto   +1 more
core  

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