Results 81 to 90 of about 5,077 (149)

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

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  

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

Dynamic evolution characteristics and microscopic mechanisms of contact between gas-bearing coal and water [PDF]

open access: yes
The effectiveness of coal seam water injection in controlling gas and dust is closely related to the wetting effect of water on the coal. A dynamic wetting process is formed after the contact between gas-bearing coal and water, which is crucial for ...
Biming SHI   +8 more
core   +1 more source

Screening of small molecule inhibitors targeting DNA polymerase η(DNA聚合酶η小分子抑制剂筛选)

open access: yes浙江大学学报. 农业与生命科学版
The repair of DNA damage and maintenance of genomic stability are essential for the normal growth and adverse defense of plants and animals. In view of the genomic instability caused by the misincorporation of DNA polymerase, this study took DNA ...
CAO Jiajia(曹佳佳)   +2 more
doaj   +1 more source

C4F7N/N2混合气体的分解机理研究

open access: yesGaoya dianqi, 2020
近年来,C4F7N(2,3,3,3-四氟-2-(三氟甲基)-丙腈)凭借优良的绝缘和环保性能得到了替代气体研究领域的广泛关注。目前针对C4F7N混合气体分解特性的研究较少,为明确其分解特性,文中基于ReaxFF分子动力学方法和量子化学DFT理论对C4F7N/N2混合气体的分解机理进行了研究,同时利用气体绝缘性能测试平台配合气相色谱质谱联用仪对C4F7N/N2混合气体多次工频击穿后的放电分解产物进行了检测。研究发现C4F7N/N2混合气体的主要分解产物有CF4、C2F6、C3F8、CF3CN、C2F4 ...
傅明利   +7 more
doaj  

Mudstone swelling characteristics and key interface response under water immersion [PDF]

open access: yes
The swelling of clay mineral-rich mudstones upon water exposure is a critical factor contributing to various geological hazards. However, there remains a lack of in-depth investigation into the microscopic and macroscopic response mechanisms of clay ...
Changdong LI   +4 more
core   +1 more source

Research progress on the structure of hydration films at solid–liquid interfaces [PDF]

open access: yes
Solid–liquid interfaces are pervasive across the material world, playing a crucial role in various fields such as mineral flotation, oil mining and processing, and soil improvement.
Chunbao SUN, Jue KOU, Na ZHANG
core   +1 more source

法国梧桐叶片炭和枝条炭对水中Pb2+的吸附特性影响

open access: yesShuitu Baochi Xuebao, 2019
以法国梧桐叶片和枝条为原料在500℃下通过限氧裂解法制成生物质炭,进而采用批量吸附法探究了不同溶液初始pH、吸附时间、溶液初始Pb2+浓度对生物质炭吸附效果的影响,并通过拟合吸附动力学曲线和吸附等温线方法初步研究吸附机理。结果表明,与法国梧桐枝条炭相比,叶片炭矿质元素组成相对较为复杂,官能团种类较丰富。2种生物质炭均在吸附时间为24 h时、初始pH为5时达到最大吸附量,叶片炭的最大吸附量比法国梧桐枝条炭高25.6%。2种生物质炭的动力学吸附过程均符合准二级动力学方程,表明吸附速率主要受化学因素控制 ...
温尔刚   +5 more
doaj  

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