Results 21 to 30 of about 43,951 (232)
Geomechanics and Geophysics for Geo-Energy and Geo-Resources, 2023 The shear strength of rock joints is critical in determining rock mass stability. However, the reliability of shear strength determined by testing only a few rock joint specimens is questionable due to the inherent heterogeneity of rock joints.
Rui Yong +4 more
doaj +1 more source
Angewandte Chemie, EarlyView.Despite its promise for producing metastable materials, the mechanisms underlying solid‐state microwave synthesis remain poorly understood. By combining in situ thermography with x‐ray diffraction and solid‐state NMR, this study uncovers a surprising order–disorder–order reaction pathway during the microwave synthesis of the Li1.1Mn0.9O1.9F0.1${\rm Li ...
Erick A. Lawrence +8 more
wiley +2 more sources
Angewandte Chemie, EarlyView.High‐resolution proton detection is preserved under cryogenic dynamic nuclear polarization (DNP) by combining fast MAS, extensive deuteration and selective methyl protonation. This strategy enables proton‐detected structural studies of biomolecular solids with enhanced sensitivity under DNP conditions.
James Tolchard +16 more
wiley +2 more sources
Fundamentos y analogías para entender mejor la espectroscopía de RMN
Educación Química, 2022 La Resonancia Magnética Nuclear (RMN) es una técnica espectroscópica utilizada en diversas áreas de las ciencias químicas, biológicas y de la salud.
Mariel Anahí García González +3 more
doaj +1 more source
Focus on the Outer Membrane Factor OprM, the Forgotten Player from Efflux Pumps Assemblies
Antibiotics, 2015 Antibiotics have been used extensively during several decades and we are now facing the emergence of multidrug resistant strains. It has become a major public concern, urging the need to discover new strategies to combat them.
Gilles Phan +2 more
doaj +1 more source
Journal of Arrhythmia, 2017 Background: Percutaneous transcatheter radiofrequency ablation of atrial fibrillation with remote controlled magnetic navigation (RMN) has been shown to reduce radiation exposure to patients and physicians compared with conventional manual (MAN) ablation
Paul Chun Yih Lim +8 more
doaj +1 more source
Revista Cubana de Anestesiología y Reanimación, 2007 Introducción: En los últimos años ha cobrado interés los procedimientos diagnósticos invasivos y radiológicos en pacientes pediátricos.Objetivos: Identificar las ventajas de la asociación intravenosa de midazolam-ketamina-propofol para la sedación de ...
Sara Fernández Abreu +5 more
doaj +2 more sources
Etude quantitative de copolymères par RMN compacte [PDF]
, 2022 Le but de ce mémoire consiste à analyser le degré de copolymérisation par RMN de deux copolymères. - Dans le chapitre 1 nous allons voir par le biais de quelques exemples l’intérêt grandissant de la RMN de paillasse.
El Hassar, Samir
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American Journal of Botany, EarlyView.Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely +7 more
wiley +1 more source
Estudo espectrocópico por RMN de scutianinas [PDF]
, 2009 TCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Curso de Química.No presente trabalho foram estabelecidas as estruturas da Scutianina C e do Scutianeno D, com a finalidade de esclarecer dúvidas ...
Slaviero, Rodrigo
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