Mechanical behaviors of soft rocks based on the fractional thermal elastic-plastic theory [PDF]
, 2021 Soft rocks have complex thermodynamic behaviors and their strength maybe increase or decrease with temperature. In this paper, the soft rocks were considered as heavily over-consolidated clays and their preconsolidation pressure was assumed to be the ...
Li, H, Ma, B, Sheng, D, Zhang, S
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Study on mechanical properties and damage characteristics of granite under thermal shock based on CT scanning [PDF]
, 2023 During the exploitation of deep geothermal resources, the thermal fractures of high-temperature rocks are usually induced by the impact of low-temperature fluids to improve the permeability of reservoir rocks.
Jiamin WANG +5 more
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Experimental study on desorption characteristics of gas-containing coal under the action of overburden pressure and water injection [PDF]
, 2023 It is easy to form a coupling effect between ground stress and gas, and cause the accident of coal and gas outburst dominated by ground stress during deep mining.
Mei HAO +3 more
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Force-induced phase behavior of polymer chains(外力诱导下的高分子链相变)
Zhejiang Daxue xuebao. Lixue ban, 2009 采用nPERMis(new pruned-enriched rosenbluth method with importance sampling）算法,研究了吸附在表面的高分子链在外力诱导下的相变行为.以链长N = 60的高分子链为例,在外力的作用下相变临界温度比没有外力作用的相变临界温度要低,并随外力的增大相变临界温度降低,但比热容峰值会增大.当外力f= 1.0或者1.5时,在高温区域高分子链形状发生较大变化,但在低温区由于高分子链内部相互作用和界面的吸附作用 ...
YANGZhi-yong(杨志勇) +1 more
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Jianzhu Gangjiegou Jinzhan, 2021 落地式钢筒仓仓壁直接支承于混凝土环梁基础上,这种仓壁与基础的连接方式会使温度作用下筒仓根部产生显著的温度应力和变形,并对筒仓的屈曲性能产生影响。按照欧洲规范EN 1993-1-6推荐的5种壳体屈曲分析方法,分析太阳辐射作用下产生的非均匀温度场对大直径落地式平底圆柱钢筒仓稳定性的影响;并与均匀温度作用和无温度作用时筒仓的屈曲性能进行对比,得出不同温度作用对不同分析方法得到的筒仓屈曲模态和承载力的影响。最后通过参数分析得出缺陷的形式和幅值对钢筒仓屈曲的影响。
马越, 杨红霞, 李盛斌, 霍治澎
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Zhejiang Daxue xuebao. Lixue ban, 2011 用等温滴定热量计测定了牛血清白蛋白(BSA)与十二烷基二羟乙基甲基溴化铵(DDHAB)的相互作用焓，探讨了表面活性剂浓度、温度和盐浓度等对相互作用焓的影响.BSA与表面活性剂相互作用焓是静电作用、去水化作用、疏水作用和表面活性剂胶束化等协同作用的结果，在其他条件保持不变时，相互作用焓随表面活性剂浓度改变，在临界胶束浓度(CMC)前后区域分别出现吸热峰.加入NaCl可引起相互作用焓峰值及其位置的变化.
HUXiao-huan(胡晓环) +4 more
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Pore structure characteristics of middle and low rank coals and their influence on gas desorption characteristics [PDF]
, 2022 The pore structure of coal is an important factor affecting gas storage and migration. In order to further study the gas desorption characteristics of low and medium metamorphic coals, 6 sets of coal samples from the Fukang mining area were selected for ...
Bang REN, Cuixia WANG, Jikun LIU
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Browning mechanism of indigo juice during processing prevention and control technology [PDF]
, 2023 Objective: Indigo fruit juice is prone to browning during processing. Methods: A kinetic model was fitted by determining the changes in browning degree, vitamin C （VC） content, and 5-hydroxymethylfurfural （5-HMF） content of indigo fruit juice during the ...
HAN Chunran +4 more
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Synthesis, Structure Modulation and Photoluminescence Properties of Silver Coordination Compounds [PDF]
, 2015 由于具有丰富的结构和多样的性能，近二三十年来配合物是科研的热点领域。实现对配合物结构和性质的控制是晶体工程的重要目标。然而，配合物自组装反应受金属离子、配体、阴离子、溶剂等很多因素的影响。一价银离子具有d10的电子构型，配位几何多变，且可能形成亲银作用，银配合物还可能具有荧光性质。本文研究的是阴离子、羧酸、溶剂调控的银与几种含N配体的配合物。 第二章论述的是阴离子调控的1:1的银-2,4-二氨基-6-[2-(2-甲基-1-咪唑基)乙基]-1,3,5-三嗪(L1)配合物。1,5 ...
梅洪鑫
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Experimental study on unloading creep of sandstone under temperature-seepage coupling conditions [PDF]
Environmental factors (such as temperature and water) and their coupling effects will change the unloading creep properties of surrounding rock after tunnel excavation, threatening the stability of surrounding rock and the safety maintenance of ...
Gongyu HOU +7 more
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