Results 131 to 140 of about 282,726 (290)
Selective Hydrodemethylation of Methylalkylbenzenes on Potassium Hydride
Angewandte Chemie, EarlyView.Selective catalytic hydrodealkylation of methylalkylbenzenes on carbon‐supported potassium hydride is reported. The reaction exhibits a reactivity trend of 1° ∼ 2° ∼ 3° < CH3, which is opposite to traditional dealkylation and hydrodealkylation. DFT calculations on the (001) facet of KH with ortho‐ethyltoluene suggest that selectivity is controlled by ...
Puyang Tian +5 more
wiley +2 more sources
Impact of eigenvalues on the electron-phonon coupling strength of aluminium and its binary alloys
Bibechana, 2014 Aluminium is a third group element according to the periodic table. Chemically it is a reactive metal often forming complexes within its binary alloys.
B. K. Kantha +3 more
doaj
Recent advances on eigenvalues of matrix-valued stochastic processes [PDF]
, 2021 Jian Song, Jianfeng Yao, Wangjun Yuan
openalex +1 more source
On the distribution of the largest eigenvalue in principal components analysis
, 2001 I. Johnstone
semanticscholar +1 more source
Advanced Intelligent Systems, EarlyView.This paper presents a degeneracy‐aware light detection and ranging (LiDAR)‐inertial framework that enhances LiDAR simultaneous localization and mapping performance in challenging environments. The proposed system integrates a dual‐layer robust odometry frontend with a Scan‐Context‐based loop‐closure detection backend.
Haoming Yang +4 more
wiley +1 more source
Angewandte Chemie, EarlyView.Stable aggregates of a new hydrogen‐bond mediated porphyrin‐perylenebisimide (PBI) bola‐type supra‐amphiphile have been synthesized by lyophilization of solutions of both single molecules in THF/water mixtures, followed by redispersion in pure water. Cryogenic transmission electron microscopy verifies the spherical morphology.
Erik J. Schulze +6 more
wiley +2 more sources
Advanced Intelligent Systems, EarlyView.Adaptive multi‐indicator contrastive predictive coding is introduced as a self‐supervised pretraining framework for multivariate EHR time series. An adaptive sliding‐window algorithm and 2D convolutional neural network encoder capture localized temporal patterns and global indicator dependencies, enabling label‐efficient disease prediction that ...
Hongxu Yuan +3 more
wiley +1 more source
Eigenvalue problems for nonlinear elliptic equations with unilateral constraints
, 2007 Michael Ε. Filippakis +2 more
openalex +1 more source
Current‐Limiting Control Strategies in Variable Capacitance Electrostatic Energy Harvesters
Advanced Intelligent Systems, EarlyView.This work introduces control strategies for electrostatic energy harvesters that balance energy yield with current limitations. Two approaches are explored: traditional peak‐triggered controls, and newly developed quadrature controls, which use smooth voltage profiles.
Alireza Jalaliankhakshour +4 more
wiley +1 more source
A Remark on: Lower bounds for Eigenvalues of Hypersurface Dirac Operators [PDF]
, 1999 Xiao Zhang
openalex +1 more source