Results 301 to 310 of about 2,370,027 (358)

Compactness properties of locally compact groups

Transformation Groups, 1997
For a discrete group \(\Gamma\) and an integer \(n\), finiteness properties \(FP_n\) and \(F_n\) are considered. They are defined as follows: \(\Gamma\) is of type \(FP_n\) if there is a projective resolution of \(\mathbb{Z} \Gamma\) over the trivial \(\mathbb{Z} \Gamma\)-module \(\mathbb{Z}\) with finitely generated modules in dimension \(\leq n\). \(\
Abels, Herbert, Tiemeyer, A.
openaire   +3 more sources

Effects of cross‐linked networks on dielectric properties of epoxy resins based on molecular dynamics

Journal of Applied Polymer Science, 2023
In this paper, three epoxy resin systems commonly used in power equipment are prepared to obtain cross‐linked networks with structural differences. The relationship between microscopic structures and dielectric properties of epoxy resins is investigated ...
Yifang Wang, B. Du, X. Kong, Xiaolong Li
semanticscholar   +1 more source

Tuning Local Charge Distribution in Multicomponent Covalent Organic Frameworks for Dramatically Enhanced Photocatalytic Uranium Extraction.

Angewandte Chemie, 2023
Optimizing the electronic structure of covalent organic framework (COF) photocatalysts is essential for maximizing photocatalytic activity. Herein, we report an isoreticular family of multivariate COFs containing chromenoquinoline rings in the COF ...
Hui Yang, Mengjie Hao, Yinghui Xie, Xiaolu Liu, Yanfang Liu, Zhongshan Chen, Xiangke Wang, G. Waterhouse, Shengqian Ma   +8 more
semanticscholar   +1 more source

Correlation of Local Isomerization Induced Lateral and Terminal Torsions with Performance and Stability of Organic Photovoltaics.

Journal of the American Chemical Society, 2023
Organic photovoltaics (OPVs) have achieved great progress in recent years due to delicately designed non-fullerene acceptors (NFAs). Compared with tailoring of the aromatic heterocycles on the NFA backbone, the incorporation of conjugated side-groups is ...
Baobing Fan, Wei Gao, Rui Zhang, W. Kaminsky, Francis R. Lin, Xinxin Xia, Qunping Fan, Yanxun Li, Yidan An, Yuehua Wu, Ming Liu, Xinhui Lu, W. J. Li, H. Yip, Feng Gao, A. Jen   +15 more
semanticscholar   +1 more source

KNN Local Attention for Image Restoration

Computer Vision and Pattern Recognition, 2022
Recent works attempt to integrate the non-local operation with CNNs or Transformer, achieving remarkable performance in image restoration tasks.
Hunsang Lee, Hyesong Choi, K. Sohn, Dongbo Min   +3 more
semanticscholar   +1 more source

Comparison of the pharmacological properties of 0.375% bupivacaine with epinephrine, 0.5% ropivacaine and a mixture of bupivacaine with epinephrine and lignocaine – a randomized prospective study

Journal of Plastic Surgery and Hand Surgery, 2020
One of the methods of anesthesia for orthopedic and plastic procedures for the upper limb is the brachial plexus block. The aim of the study was to compare the pharmacodynamic and pharmacokinetic properties of three commonly used local anesthetic ...
Piotr Bobik, J. Kosel, Paulina Świrydo, Marcin Tałałaj, Igor Czaban, Wojciech Radziwon   +5 more
semanticscholar   +1 more source