Results 91 to 100 of about 109,418 (318)

Dipole‐Manipulated Built‐In Electric Field Enables Ultrafast Charge Separation in Perylene Diimide Polymers for Photoelectrochemical Water Splitting

Advanced Science, EarlyView.
Molecular dipole engineering in dendritic perylene diimide polymers through nitrogen‐rich heterocyclic linkers amplifies the built‐in electric field, enabling sub‐picosecond charge separation and efficient multi‐electron accumulation. This structure–dynamics–performance relationship establishes a versatile design strategy for high‐performance organic ...
Ying‐Xin Qiao, Zicong Situ, Yi‐Jing Chen, Shuo‐Xiang Liu, Jing‐Lan Zhang, Xingqing Li, Luo‐Han Xie, Si‐Hang Xie, Qing‐Xiao Tong, Andong Xia, Zhuoran Kuang, Jing‐Xin Jian   +11 more
wiley   +1 more source

Communication paradigms for mobile computing [PDF]

ACM SIGMOBILE Mobile Computing and Communications Review, 2002
The widespread deployment and use of wireless data communications causes the need for middleware to interconnect the components that comprise a mobile application. Middleware for mobile computing must deal with the increased complexity that comes with a dynamically changing population of application components and the resulting dynamic reconfiguration ...
openaire   +2 more sources

Inequality Measures Applied to the Diffusion of Mobile Communications within the European Union [PDF]

Mobile communications has recently been popular in innovation diffusion studies: Researchers have conducted studies on a nation, a multi-nation, and on a worldwide level.
Lauri Frank
core  

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Smart grid sensor data collection, communication, and networking: a tutorial

, 2012
The smart grid is an innovative energy network that will improve the conventional electrical grid network to be more reliable, cooperative, responsive, and economical.
Niyato, Dusit, Hossain, Ekram, Kayastha, Nipendra, Han, Zhu   +3 more
core   +1 more source

A review of personal communications services [PDF]

, 2008
This article can be accessed from the link below - Copyright @ 2009 Nova Science Publishers, LtdPCS is an acronym for Personal Communications Service. PCS has two layers of meaning.
Wang, X, Hui Cheng, Cheng, Hui, Hui Cheng (195456), Yang, S, Xingwei Wang (6019421), Min Huang (161268), Shengxiang Yang, Cheng, H, Min Huang, Yang, Shengxiang, Shengxiang Yang (7582940), Wang, Xingwei, Huang, M, Xingwei Wang, Huang, Min   +15 more
core   +1 more source

Superlattice Architectures for Advancing Photothermal Catalysis: Mechanisms and Applications

Advanced Science, EarlyView.
This paper provides a timely overview of superlattice architectures in photothermal catalysis, with a systematic review on mechanisms at both atomic and macroscopic scales in different processes, challenges, and future opportunities. ABSTRACT Photothermal catalysis has emerged as a powerful strategy to complement photocatalysis by harnessing full ...
Yuzhao Wu, Xiaoguang Duan, Haijun Chen, Hongqi Sun, Jinqiang Zhang, Shaobin Wang   +5 more
wiley   +1 more source

Uplink Spectral Efficiency Analysis of Distributed Massive MIMO With Channel Impairments

IEEE Access, 2017
In this paper, considering the practical channel impairments known as pilot contamination and channel aging induced by both Doppler shift and phase noise, we analyze the uplink spectral efficiency of multi-cell multi-user distributed massive multi-input ...
Jiamin Li, Dongming Wang, Pengcheng Zhu, Xiaohu You   +3 more
doaj   +1 more source

Enabling Mobile Communications for the Needy: Affordability Methodology, and Approaches to Requalify Universal Service Measures [PDF]

This paper links communications and media usage to social and household economics boundaries. It highlights that in present day society, communications and media are a necessity, but not always affordable, and that they furthermore open up for addictive ...
Louis-Francois PAU
core  

Strain‐Modulated Reconfigurable Optical Information Processing in Flexible Graphene/PDMS

Advanced Science, EarlyView.
Graphene/PDMS—a stable, mechanically robust, and highly tunable flexible composite, exhibits excellent strain‐tunability. The spatial self‐phase modulation (SSPM) effect can be reversibly and continuously modulated by strain. A strain‐gated optical switch can be constructed, thereby realizing reconfigurable optical logic gates and reversible switching ...
Zexin Cui, Lihua Tong, Yuehua Wang, Mengting Jiang, Jiaxu Sun, Huabo Song, Qifan Li, Guangyuan Cui, Churui Guo, Wentao Meng, Shaoya Wang, Yuee Chen, Yanling Wu, Xiaodan Xu   +13 more
wiley   +1 more source