Results 301 to 310 of about 21,717,715 (348)

Boron Phosphide Nanoparticles: A Nonmetal Catalyst for High‐Selectivity Electrochemical Reduction of CO2 to CH3OH

Advances in Materials, 2019
Electrocatalysis has emerged as an attractive way for artificial CO2 fixation to CH3OH, but the design and development of metal‐free electrocatalyst for highly selective CH3OH formation still remains a key challenge.
S. Mou, Tongwei Wu, Junfeng Xie, Ya Zhang, L. Ji, Hong Huang, Ting Wang, Yonglan Luo, Xiaoli Xiong, B. Tang, Xuping Sun   +10 more
semanticscholar   +1 more source

Selection Guidelines for High-Performance Membrane

2011
The fundamental concept for the selection of high-performance membrane is based on solute removal capability and biocompatibility. From this principle, the selection guidelines for high-performance membrane are recommended as follows: (1) The currently available products do not provide coverage of the necessary 'balance between solute removal and ...
Tsutomu, Sanaka, Masahide, Koremoto
openaire   +2 more sources

Photocatalytic CO2 Conversion of M0.33WO3 Directly from the Air with High Selectivity: Insight into Full Spectrum-Induced Reaction Mechanism.

Journal of the American Chemical Society, 2019
Natural photosynthesis is a solar light-driven process utilized by plants to convert CO2 and water into carbohydrate molecules. The goal of artificial photosynthesis is the reduction of CO2 directly from air into high purity value-added products at ...
Xiaoyong Wu, Yuan Li, Gaoke Zhang, Hong Chen, Jun Li, Kai Wang, Yang Pan, Yan Zhao, Yongfu Sun, Yi Xie   +9 more
semanticscholar   +1 more source

A Nitrobenzoxadiazole Ether-Based Near-Infrared Fluorescent Probe with Unexpected High Selectivity for H2S Imaging in Living Cells and Mice.

Analytical Chemistry, 2019
H2S is an important endogenous gasotransmitter and its detection in living systems is of great significance. Especially, selec-tive and sensitive near-infrared (NIR) fluorescent H2S probes with rapid response and large Stokes shift are highly desirable ...
Shengyi Gong, Enbo Zhou, Jiaxin Hong, Guoqiang Feng   +3 more
semanticscholar   +1 more source

A high-selectivity β spectrometer

Instruments and Experimental Techniques, 2012
Measurements of β spectra from fission fragments are complicated by high background of γ rays and neutrons. A scintillation β spectrometer capable of precisely reconstructing the β particle spectra in the energy range of >1 MeV has been developed to reduce the effect of this background without deteriorating the high detection efficiency for β particles.
V. F. Apalin, K. A. Balygin, V. I. Zaitsev, M. D. Karetnikov, A. I. Klimov, V. I. Kopeikin, E. A. Meleshko, A. A. Sabel’nikov   +7 more
openaire   +1 more source

Ambient Electrochemical Ammonia Synthesis with High Selectivity on Fe/Fe Oxide Catalyst

ACS Catalysis, 2018
Electrochemical reduction of N2 to NH3 under ambient conditions can provide an alternative to the Haber–Bosch process for distributed NH3 production that can be powered by renewable electricity.
Lin Hu, A. Khaniya, Jun Wang, Gang Chen, W. Kaden, Xiaofeng Feng   +5 more
semanticscholar   +1 more source

Parallel Selection with High Probability

SIAM Journal on Discrete Mathematics, 1990
Given a set of n elements in some unknown order, parallel comparison algorithms to select the tth highest with probability $1- o(1)$ as $n \to \infty $ are considered, where each order is assumed to be equally likely. Such an algorithm is given using four rounds and $cn$ comparisons per round, and it is shown that no such algorithm exists using three ...
Béla Bollobás, Graham Brightwell
openaire   +1 more source

High selectivity gas sensing and charge transfer of SnSe2.

ACS Sensors, 2019
SnSe2 is an anisotropic binary layered material with rich physics, which could see it used for a variety of potential applications. Here, we investigate the gas sensing properties of SnSe2 using first-principles calculations, and verify predictions using
Óscar Leonardo Camargo Moreira, W. Cheng, H. Fuh, Wei-Chen Chien, Wenjie Yan, Haifeng Fei, Hongjun Xu, Duan Zhang, Yanhui Chen, Yanfeng Zhao, Yanhui Lv, Gang Wu, Chengzhai Lv, S. Arora, C. Ó Coileáin, C. Heng, Ching‐Ray Chang, Han-Chun Wu   +17 more
semanticscholar   +1 more source

High selectivity miniaturized broadband filter

Microwave and Optical Technology Letters, 2010
AbstractDesign of a compact broadband filter using tightly coupled line sections in defected (A slot is cut in the ground) microstrip medium operating from 3.1–6.8 GHz has been reported in this article. Filter has been designed and analyzed using an equivalent circuit model based on even and odd mode parameters of coupled line sections.
Packiaraj, D, Vinoy, KJ, Ramesh, M, Kalghatgi, AT   +3 more
openaire   +1 more source

Filtering Antenna With High Selectivity Using Multiple Coupling Paths From Source/Load to Resonators

IEEE Transactions on Antennas and Propagation, 2018
This communication presents a filtering antenna with high selectivity using multiple coupling path from source/load to resonators. The high selectivity of the filtering antenna’s boresight gain response is achieved by a novel coupling scheme, which ...
Bohai Zhang, Q. Xue
semanticscholar   +1 more source