Results 131 to 140 of about 663,106 (345)

Impedance‐Matched High‐Overtone Thickness‐Shear Bulk Acoustic Resonators With Scalable Mode Volume

open access: yesAdvanced Science, EarlyView.
A bottom‐electrode‐free high‐overtone bulk acoustic resonator is achieved by lateral excitation of antisymmetric thickness‐shear modes on a lithium‐niobate‐on‐silicon platform. Planar electrode geometry eliminates conventional loading along the resonance path and confines acoustic energy within the electrode gap.
Zi‐Dong Zhang   +7 more
wiley   +1 more source

Research on Radio Resource Management for Hierarchical Heterogeneous Wireless Network

open access: yesDianxin kexue, 2013
With the development of communication technology, the hierarchical heterogeneous characters of coverage in networks become more and more clear, which is caused by the need of high quality for wireless applications to users.
Feng Tian, Hantao Liu, Liang Zhou
doaj   +2 more sources

Triple‐Mode Ferroelectric Thin‐Film Transistor for Hybrid Electrical–Optical Reservoir Computing

open access: yesAdvanced Science, EarlyView.
A triple‐mode ferroelectric thin‐film transistor is developed by integrating Si3N4/HZO/IGZO layers to realize three independent memory modes: electric long‐term, electric short‐term, and optical short‐term. This single‐device architecture functions as both a reservoir and readout layer, achieving 92.43% MNIST accuracy. It offers a fully hardware‐based,
Hyeonho Lee   +9 more
wiley   +1 more source

Power-optimised multi-radio network under varying throughput constraints for rural broadband access

open access: yes, 2013
The use of complementary radio access technologies within a network allows the advantages of each technology to be combined to overcome individual limitations.
Weiss, Stephan, McGuire, Colin
core  

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

open access: yesAdvanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang   +3 more
wiley   +1 more source

A Data‐Driven Inverse Design Methodology for Magnetic Soft Millirobots Navigating in Confined Spaces

open access: yesAdvanced Science, EarlyView.
A data‐efficient inverse design framework automates the optimization of magnetic soft millirobots for confined‐space navigation. Integrating a physics‐based Cosserat rod model with Bayesian optimization efficiently identifies high‐performance geometries.
Ziyu Ren   +5 more
wiley   +1 more source

Unidirectional Evaporation‐Induced Tunable and Continuous Gradient Composite Structure for Absorption‐Dominant Electromagnetic Interference Shielding

open access: yesAdvanced Science, EarlyView.
A continuous conductivity gradient is formed in a porous MXene/melamine foam via directional evaporation, thereby improving impedance matching and enhancing electromagnetic attenuation. The resulting monolithic composite delivers absorption‐dominant EMI shielding with ultralow reflection, offering a simple route toward lightweight EMI shielding ...
Dawei Zhang   +6 more
wiley   +1 more source

Heterogeneous Wireless Communication Devices- Present and Future

open access: yes, 2008
ABSTRACK Summary form only given. Convergence of communication and computing technologies is rapidly changing the requirement of wireless devices. While wireless wide area network (WWAN) based on cellular radios was evolving, a new set of wireless LAN ...
Nair Vijay
core  

Nucleic Acid Therapeutics for “Undruggable” Cancer Targets: Mechanisms, Challenges, and Prospects

open access: yesAdvanced Science, EarlyView.
Nucleic acid therapeutics bypass the structural limitations of conventional drugs by targeting mRNA rather than proteins. This review examines how antisense oligonucleotides, siRNAs, miRNAs, aptamers, and mRNA vaccines intervene against historically undruggable oncoproteins including Ras, MYC, and p53, highlighting mechanistic advances, delivery ...
Feng Xu   +6 more
wiley   +1 more source

Cloud-Assisted Safety Message Dissemination in VANET–Cellular Heterogeneous Wireless Network

open access: yesIEEE Systems Journal, 2017
Bingyi Liu   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy