Results 131 to 140 of about 864,738 (314)

Expanding the NMR toolbox for nucleosome studies [PDF]

, 2019
The way a cell controls which part of its long DNA to access and read, which part not, and the way it maintains the integrity of the genome, are crucial for the proper functioning of an organism. These processes depend to a large extent on the packing of
NMR Spectroscopy, Sub NMR Spectroscopy, le Paige, Ulric Bernard Agnès   +2 more
core  

Experimental Study on Fluid Dissipation Effects in Core Samples by NMR Measurement

Applied Sciences
Laboratory core nuclear magnetic resonance (NMR) relaxation measurements offer geological information, including rock porosity and oil saturation, relevant to logging. When core samples drilled from wells are exposed to air, the fluids within their pores
Zhongshu Liao, Gong Zhang, Yingying Ma
doaj   +1 more source

NUCLEAR MAGNETIC RESONANCE (NMR) PROPERTIES OF SYNTHETIC AND SANDY SAMPLES

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2007
Fluids can be cletennined on samples directly using NMR technique [1 ,2,3]. The aınplitude of the NMR signal isrelated to the nun1ber of hydrogen protons, the technique can be use d in geophysics to ıneasure the water conteniof rocks and so i ls [ 4,5 ...
Fatih Sünbül
doaj   +1 more source

Enhanced Mechanical Recycling of Polymer Mixtures by a Trifunctional Dynamic Crosslinker

Advanced Materials, EarlyView.
A self‐catalyzed, trifunctional dynamic crosslinker that incorporates three desired properties into one system and is compatible with reactive extrusion can compatibilize waste plastic mixtures containing high Tm polymers and impart the recycled mixtures with superior thermoset properties such as enhanced creep resistance and thermomechanical stability
Xavier Westworth, Essa Shamsan, Yunpeng Gao, Nevaya Carr, Eugene Y.‐X. Chen   +4 more
wiley   +1 more source

Relaxation-Assisted Separation of Overlapping Patterns in Ultra-Wideline NMR Spectra

, 2016
Efficient acquisition of high-quality ultra-wideline (UW) solid-state NMR powder patterns in short experimental time frames is challenging. UW NMR powder patterns often possess inherently low signal-to-noise (S/N) and usually overlap for samples ...
Robert W. Schurko (1273611), Lucio Frydman (555737), Michael J. Jaroszewicz (3608933)   +2 more
core   +1 more source

Field-frequency lock approach for 21.3-MHz high-performance NMR relaxation analyzer

AIP Advances, 2018
Low-field NMR (LF-NMR) relaxation analyzers have been more and more widely used in food science, biomedicine, and petroleum exploration in recent years.
Shanshan Chen, Luoyuan Xu, Hongzhi Wang, Shuguang Dai   +3 more
doaj   +1 more source

Bifunctional Catalysis Drives Efficient and Ethanol‐Producing Aqueous Zn‐CO2 Batteries

Advanced Materials, EarlyView.
A unified bifunctional catalyst breaks the trade‐off between CO2 reduction and O2 evolution, delivering high efficiency, ethanol production, and long‐term stability in Zn‐CO2 batteries while revealing degradation pathways for next‐generation bifunctional electrocatalysts.
Divyani Gupta, Jinshuo Zou, Anoja Kawsihan, Jodie A. Yuwono, Zhaoliang Wu, Jun Yu, Yameng Fan, Sailin Liu, Jianfeng Mao, Zaiping Guo   +9 more
wiley   +1 more source

Dynamic Electrophoretic Assembly Coupled With Water‐Splitting‐Induced pH Control Enables Precision Ion Sieving Membranes

Advanced Materials, EarlyView.
A green, external‐catalyst‐free route grows defect‐free covalent organic framework membranes directly on ion‐exchange supports using an alternating electric field and in situ‐generated acid. Through a self‐regulating, self‐healing mechanism, the membranes achieve near‐complete, ultra‐fast separation of monovalent ions such as Li+, Na+, and K+, offering
Mohammad Hossein Jandaghian, Petric Marc Ruya, Ipek Ozyurt, Ali Atyabi, Samuel Eyley, Wim Thielemans, Alexander Volodin, Riccardo Alessandri, Xing Yang   +8 more
wiley   +1 more source

NMR relaxation and internal dynamics of ubiquitin from a 0.2 mu s MD simulation [PDF]

, 2005
A 0.2 mu s molecular dynamics simulation of ubiquitin in water is presented, which allows us to assess both the global tumbling in solution and the internal dynamics. The latter reveals slow motions outside the classical NMR timewindow, in agreement with
Nederveen, A.J., Bonvin, A.M.J.J.
core  

A Multifunctional Ionograsper Enabling Ion‐Redistribution Proximity Sensing and Structural‐Reconfiguration‐Driven Bidirectional Actuation

Advanced Materials, EarlyView.
A solid‐state ionic actuator integrates sensing, actuation, and memory within one material. A brief UV pulse induces long‐lasting deformation via coupled network rearrangement, dehydration, and rehydration, while ionic redistribution enables self‐powered sensing, supporting multifunctional, energy‐efficient soft robotic functions without continuous ...
Yong Min Kim, Jin Han Kwon, Hyeon Woo Yang, Sungryong Kim, Gyeong Rok Lee, Hong Chul Moon   +5 more
wiley   +1 more source