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关键词： Biophysics   Chemistry   Protein Biochemistry   Structural Biology  

摘要： In the exact nuclear Overhauser enhancement (eNOE) method, tight upper and lower interatomic distance restraints for structure calculations and comparison are extracted from NMR nuclear Overhauser enhancement spectroscopy (NOESY) spectra of biomolecules recorded with different mixing times. Here, we present a protocol for exporting the resonance assignments of NOESY spectra from CCPNmr (v.2) into nmrDraw to obtain peak intensities. We then detail procedures for converting them into distances using either the CYANA- or MATLAB-based “exact NOE by relaxation matrix analysis” (eNORA) program. © 2025 The Author(s)

关键词： Afterglow   LED   Luminescence   Sensor   SrAlO4:Eu, Yb  

摘要： The paper studies variation in luminescence and thermal intensities through MatLab. Luminescence images are taken from a Sony α7S II DSLR mirrorless camera; snapshots are taken from the experimental video and converted in grey images. The intensity variation is calculated in MatLab. Through this analysis, the stress detection is easy and the afterglow through image analysis is reported. The afterglow intensities from the phosphor materials are analyzed without a spectrometer, and the fast and slow decay time is calculated. The path of light through a WLED torch with 0°, 30° and 45° angles is detected, measured, and studied. The obtained intensity variation can be useful for lighting in the room/hall. Thermal imaging of red-hot iron rods and their intensity variation are obtained at a 5 min time difference. In the present work, it is easy to develop a stress sensor that is useful for structural health monitoring systems.

关键词： 晶界工程   微合金   纯铜   电导率   热稳定性  

摘要： 利用晶界工程对Cu-Ti-S微合金化纯铜组织结构进行调控,并结合电子背散射衍射(EBSD)和光学显微镜(OM)分析了晶界工程处理对导电性和热稳定性的影响与作用机理.结果表明,晶界工程处理(每道次工艺为:冷轧20%→再结晶退火530℃×10 min→水冷,循环4道次)可显著提高微合金化纯铜的晶粒尺寸热稳定性,并保持高导电性能.经0道次和4道次晶界工程处理试样的电导率分别为58.66、58.89 MS/m,在900℃×30 min高温加热后的晶粒尺寸分别为129.52、50.76 μm,有效抑制了晶粒长大.这主要与晶界工程处理增加了Σ3n CSL晶界比例有关,特别是Σ3 CSL晶界比例,具有低的晶界能量和迁移率.