Results 121 to 130 of about 224,382 (271)

An On‐Demand Neuromorphic Vision System Enabled by a Multi‐Paradigm Neuromorphic Device and Hierarchical Reconfigurability Designed from Device to System Level

Advanced Science, EarlyView.
An on‐demand ultra‐reconfigurable intelligent vision system with hierarchical reconfigurability from device to system levels is demonstrated. Through co‐design of a multi‐paradigm device, reconfigurable circuits, and adaptive system architecture/algorithms, the system enables seamless switching among spiking, non‐spiking, neuromorphic imaging (NI), and
Biyi Jiang, Jiayi Xu, Liang Ran, Xinhe Feng, Khalil Harrabi, Yida Li, Longyang Lin, Feichi Zhou   +7 more
wiley   +1 more source

Nickel‐Catalyzed Twofold Conjunctive Coupling via Philicity‐Alternating Radical Relay

Advanced Science, EarlyView.
Herein, we disclose a nickel‐catalyzed twofold conjunctive coupling that enables a four‐component assembly involving an activated alkene, a 1,3‐enyne, and both alkyl and aryl halides. Multiple C–C bonds are selectively constructed through a philicity‐alternating radical relay and the selective radical capture by the nickel catalyst.
Ji Hwan Jeon, Da Hye Kim, Gun Ha Kim, Gyuhwan Sim, Jan‐Uwe Rohde, Byunghyuck Jung, Sangwon Seo, Sung You Hong   +7 more
wiley   +1 more source

Reconfigurable Acoustofluidic Microvortices for Selective Microcargo Delivery

Advanced Science, EarlyView.
This work introduces a frequency‐encoded, reconfigurable acoustofluidic system that overcomes the low throughput and poor selectivity of conventional micro‐delivery methods. By exploiting discrete microbubble resonances to program adaptive microvortex modes, the platform enables real‐time switching and selective guidance of microscale payloads through ...
Lei Wang, Yiqiang Wu, Yiyang Tang, Hui Wei, Tianshi Lyu, Xin Zhang, Tian‐Yun Huang   +6 more
wiley   +1 more source

Photocatalytic Asymmetric C‐C Coupling for CO2 Reduction on Cu‐Zn Bimetallic Catalysts with Dipole‐Limiting Effects

Advanced Science, EarlyView.
Asymmetric Cu–Zn dual sites on EDTA‐grafted Ti‐MOF amplify the dipole‐limiting domain field (DLDF), facilitating C–C coupling. This strategy yields an exceptional C2H4 production rate of 308.72 µmol g−1 h−1 with 98.4% electron selectivity in photocatalytic CO2 reduction, highlighting the potential of asymmetric site engineering and local field ...
Peidong Ma, Ying Yu, Fan Wen, Hongyan Guo, Boyu Li, GuoZhi Deng, Xianyang Shi, Daochuan Jiang, Ruting Huang   +8 more
wiley   +1 more source

Intramolecular Synergy of CO2 Activation and H Spillover on Heteronuclear Dual‐Metal Phthalocyanine Assemblies for Selective CO2 Photoreduction

Advanced Science, EarlyView.
The CuNiPc/BiVO4 heterojunction is designed and synthesized for selective CO2 photoreduction. The cascade interfacial Z‐scheme charge transfer and the intramolecular synergy of Cu–Ni dual sites on CO2 activation and H spillover contribute to the high photocatalytic performance and selectivity. ABSTRACT Solar‐driven CO2 conversion holds great promise in
Ye Liu, Wei Qin, Panzhe Qiao, Ziqing Zhang, Zhuo Li, Yangyang Zhu, Jianhui Sun, Zhijun Li, Fuquan Bai, Liqiang Jing, Ji Bian   +10 more
wiley   +1 more source

Synergetic Relay Between Atomic Hydrogen and Chlorine Radicals Enables Efficient Nitrate‐to‐Nitrogen Gas Conversion

Advanced Science, EarlyView.
Using photoelectrochemical (PEC) deep denitrification technology, a novel synergistic reduction‐oxidation process enables efficient conversion of nitrate (NO3−) to nitrogen (N2), while suppressing key intermediate ammonium (NH4+) and toxic nitrite (NO2−) accumulation.
Yongjie Wang, Ying Tao, Chi Zhang, Shan Hu, Yuxin Shi, Jixing Wang, Jiacheng Zhang, Chen Cheng, Ying Wang, Guisheng Li, Zichao Lian, Dieqing Zhang   +11 more
wiley   +1 more source

Ultrafast Electron Transfer Coupled with a Proton Relay in an Anisotropic Dual S‐Scheme Heterojunction for Overcoming Kinetics Mismatch in H2O2 Photosynthesis

Advanced Science, EarlyView.
An anisotropic dual S‐scheme heterojunction (C3N4/SubPc‐1/C3N5) is constructed to overcome the electron–proton kinetics mismatch in photocatalytic H2O2 production. The imide bridge serves as a dual channel for ultrafast electron transfer and proton relay, synergistically enabling efficient dual‐pathway oxygen reduction and achieving a high H2O2 ...
Bing Wang, XiangBo Feng, Yao Liu, XinYi Wang, EnZhou Liu, YuZhen Zhao, ZongCheng Miao, Zhuo Li   +7 more
wiley   +1 more source

Orbital Hybridization‐Mediated Decoupling of Electrocatalytic Functions for Paired CO2 Electrosynthesis

Advanced Science, EarlyView.
This study constructs a dual‐scale Ag‐based catalyst on CeO2 nanorods via a facet‐guided strategy. This catalyst can induce a cascaded orbital hybridization effect, which synergistically optimizes oxygen vacancy stability, CO desorption kinetics, and charge transfer efficiency.
Youjia Wang, Bochen Tian, Yuxin Tian, Wenchao Wang, Xin Ma, Yansheng Liu, Junwei Hou   +6 more
wiley   +1 more source

Secure performance analysis of relay systems with multi-relay and multi-user selection

Dianxin kexue, 2019
The exact expressions for the non-zero secrecy capacity probability,secrecy outage probability of AF relay systems with transmit antenna selection and receive maximal ratio combining and its asymptotic secrecy outage probability at high signal to noise ...
Tingjie REN, Guangqiu LI, Ying CHENG
doaj   +2 more sources

Relay Selection for Full-Duplex Buffer-Aided Relaying

IEEE Access
In this paper, we consider buffer-aided (BA) relaying with full-duplex (FD) relays. The ability of the FD relays to simultaneously transmit and receive offers new degrees of freedom in the design of BA relay selection strategies. We take this feature into consideration to propose two novel FD BA relay selection schemes.
openaire   +2 more sources