Results 71 to 80 of about 4,712 (148)

Effect of Arginine on Microwave-Induced Pre-gelation of Sturgeon Myofibrillar Protein under Low Salt Condition [PDF]

open access: yes
In order to investigate the effect of arginine (Arg) on the microwave-induced pre-gelation of myofibrillar protein (MP) from sturgeon under low salt condition, MP added with different concentrations of Arg was microwaved and evaluated for physicochemical,
SHI Tong, XIE Yu, ZHANG Hao, WANG Xin, LI Mengzhe, GAO Ruichang
core   +1 more source

Theoretical Studies on Nonlinear Optical Materials and Biological Enzyme Systems [PDF]

open access: yes, 2009
材料化学和生物化学是近年来化学领域中最具应用前景的两个研究方向,也是计算化学探讨的热点方向。在材料化学中,非线性光学材料是近四十年才发展起来的一种新型材料。从技术领域到研究领域,它的应用都十分广泛,如制成电光开关、实现激光频率的调谐、进行光学信息处理等。本论文前四章即是针对无机和有机非线性光学材料进行计算,并讨论了非线性极化率和体系电子结构之间的关系。在生命活动中,生物酶起着至关重要的作用,和我们的生活也密切相关。但对它们酶催化反应机理的研究,无论在实验测定还是理论计算领域,仍存在着诸多挑战 ...
张欣
core  

Physicochemical Properties of Soybean 11S Globulin-Based Films Affected by Linoleic Acid Concentration [PDF]

open access: yes
In order to explore the interaction between lipid and protein in film-forming solutions and films, the effects of linoleic acid concentration (0%, 10%, 20%, 30% and 40% relative to protein mass) on the viscosity of 11S globulin film-forming solutions ...
ZHOU Rongxue, ZHAO Yuan, SHI Linfan, REN Zhongyang, WENG Wuyin
core   +1 more source

复合绝缘子伞裙护套材料耐冲击力学特性研究

open access: yesGaoya dianqi, 2023
鸟啄复合绝缘子为输电线路的安全运行带来了严重的隐患。为进一步理解材料特性与鸟啄损伤程度之间的关系,文中基于冲击动力学理论,对复合绝缘子的伞裙护套材料的耐冲击力学特性进行了研究。建立了包含材料弹性模量、密度、泊松比、鸟嘴形状系数等相关参数的复合绝缘子鸟啄冲击模型。模型根据鸟啄速度分为弹性变形、塑性变形与流体变形3个阶段,描述了复合绝缘子伞套材料的鸟啄深度与鸟啄速度之间的关系。设计了模拟鸟啄的人工冲击试验,以硅橡胶与脂环族环氧树脂两种伞套材料为例,对比了两种材料的耐冲击特性。结果发现 ...
尹立   +4 more
doaj  

Advances in the Application of Molecular Dynamics to Plant Protein, Lipid and Polysaccharide [PDF]

open access: yes
Food ingredients undergo complex changes during processing, and it is difficult to predict and analyze test results at the molecular level using traditional methods.
Binglin LU   +6 more
core   +1 more source

Computational Simulations of Zinc Enzyme:Challenges and Recent Advances [PDF]

open access: yes, 2012
锌酶在人体中分布非常广泛,种类繁多,是当前最受关注的金属酶之一。由于在锌配位结构上的多样性以及zn2+饱和的d轨道带来的“光谱寂静“性,导致许多实验研究手段受限。计算模拟在锌酶的研究中发挥着越来越重要的作用,已经成为不可或缺的研究工具。现代量子化学计算模拟方法,特别是被视为研究生物大分子体系非常有效的QM/MM组合方法,目前已经被广泛应用于探讨复杂多变的锌配位结构以及锌酶催化反应机理。通过在QM/MM水平下开展的分子动力学模拟,可以揭示锌酶体系中结构与功能间的相互关系。此外 ...
巫瑞波, 张颖凯, 曹泽星
core  

Research and application status of molecular simulation technology in food field [PDF]

open access: yes
In the food field, a large number of phenomena and problems that are difficult to be macroscopically explained by traditional experimental methods occur during the process of research and development in upstream laboratories to production in downstream ...
BI Xinjian   +5 more
core   +1 more source

The Study of Ruthenium Catalysts with Metal-NH Ligand Cooperation for Hydrogenation of Esters to Alcohols [PDF]

open access: yes, 2016
设计合成具有金属-NH配体协同作用的优秀催化剂是催化加氢研究的重要组成部分。本论文新合成了多种不同结构的o-PPh2C6H4NH2-Ru化合物并成功将它们应用于催化酯类化合物加氢制醇的反应研究中。在对系列催化剂结构进行系统表征的基础上,结合它们的催化活性进行了构效关联。鉴于o-PPh2C6H4NH2-Ru体系难以有效催化位阻较大底物的加氢这一问题,进一步将与o-PPh2C6H4NH2结构相似的柔性膦胺配体以及N,N’-二烷基取代的乙二胺配体引入到催化剂结构中,合成出了多种新型催化剂 ...
方霄龙
core  

Adsorbed gas density model and re-understanding of gas adsorption behavior in coal seam [PDF]

open access: yes
Clarifying the adsorbed gas density of coal seam is the basis of studying the adsorption characteristics and the real gas content of coalbed methane, but the existing calculation methods of adsorbed gas density do not reflect the influence of temperature
Shouya WU, Weiguo LIANG
core   +1 more source

Self-assembly of diblock copolymer in bulk and solution(两嵌段共聚物在本体及溶液中的自组装)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2014
采用耗散粒子动力学(DPD)模拟方法对两嵌段共聚物AmBn在本体和溶液中的自组装行为进行了研究.在本体情况下,对环形和线形两嵌段共聚物AmBn的相行为进行了系统的对比分析,观察了体系的有序-无序相转变规律,以及具体构型的相周期.在亲B选择性溶剂情况下,保持体系的浓度不变,改变环形两嵌段共聚物的链长,观察到了一系列丰富的相结构,有球状、圆盘状、片状、空心柱状、空心球状等.
PANHongwei(潘洪伟)   +2 more
doaj   +1 more source

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