Study on evolution law of mechanical properties of coal samples subjected to freezing and freeze-thaw cycles of liquid nitrogen [PDF]
, 2023 The permeability of coal reservoir is generally low in China, how to effectively improve the permeability of coal reservoir is a key and difficult point of coalbed methane exploitation, Liquid nitrogen fracturing technology as a kind waterless fracturing
Dongming ZHANG +6 more
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Mesostructure and strength characteristics of granite under freeze-thaw cycles based on CT scanning [PDF]
, 2023 Objective With the rapid increase in construction projects in the western regions in recent years, the impact of seasonal freeze-thaw cycles in the high-altitude areas of western China has become more pronounced.
CHEN Liang +8 more
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Methods in Ecology and Evolution, Volume 14, Issue 7, Page 1732-1746, July 2023., 2023 Abstract Our knowledge on the responses of permafrost ecosystems to climate warming is critical for assessing the direction and magnitude of permafrost carbon‐climate feedback. However, most of the previous experiments have only been able to warm the air and surface soil, with limited effects on the permafrost temperature.
Yuxuan Bai +8 more
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Response of Soil Respiration to Storage Irrigation and Freeze-thaw Cycles in Extremely Arid Areas [PDF]
, 2022 [Objective] The effects of water storage irrigation and seasonal freezing and thawing on soil respiration were determined in order to improve the utilization efficiency of irrigation water resources, and save irrigation water resources at Shiyang River ...
Gao Yayu +3 more
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Comparative Analysis on Engineering Performance of Stabilized Soil with Curing Agent and Glutinous Rice Slurry [PDF]
, 2022 [Objective] The a curing test of industrial waste iron tailings sand and loess mixed soil by adding an ionic curing agent or a glutinous rice slurry was conducted, and the curing effects of the two curing agents on the target soil sample were compared in
Chang Yu +4 more
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Study on the damage law of coal rock affected by different alternating periods of cold and heat [PDF]
, 2023 Temperature is an important factor affecting the physical properties of coal and rock, and as a solid medium, coal and rock have the properties of thermal expansion and contraction.
Hewan LI +4 more
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Influence of area-to-volume ratios on dissolution characteristics and mechanical properties of acid-corroded sandstone [PDF]
, 2023 To study the effect of area-to-volume ratio on the dissolution and deterioration characteristics of sandstone in the static acid-rock reaction system, the HCl and H2SO4 solutions with pH=2 and 5 are selected as corrosion environments, and the different ...
Aihua XIONG +5 more
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Analysis of mechanical properties, permeability and fracturing mechanism of coal samples at different fracturing time of liquid nitrogen [PDF]
, 2023 In order to study the influence of liquid nitrogen cracking time on mechanical properties and permeability of coal samples, the independently developed WYS-800 triaxial gas seepage test device and acoustic emission detection system were used to conduct ...
Hao WANG +5 more
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Research Progress on the Effect of New Electrophysical Processing on Multiscale Protein Structure [PDF]
, 2023 Protein is an important nutrient required by the human body. The change of protein structure during processing will lead to changes in its functional properties, in turn affecting the quality of foods.
CONG Haihua, CUI Baowei, ZHANG Ziwei, ZHOU Qian, SONG Jingcheng, GAO Yue, LU Xiaoyan, LI Moke
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Shuitu Baochi Xuebao, 2022 冻融循环作用下的土壤结构变化被认为是融雪期黑土坡面土壤侵蚀加剧的主要原因之一, 土壤团聚体稳定性与团聚体微结构是影响土壤可蚀性的关键因子。基于控制条件土壤冻融模拟试验, 采用湿筛法、扫描电子显微技术(SEM)和Image-Pro Plus(IPP)图像分析处理相结合的方法, 分析了冻融循环过程中黑土团聚体微结构的动态变化特征, 阐明了土壤团聚体水稳定性与团聚体微结构特征的内在联系。结果表明: (1)冻融循环对黑土团聚体水稳定性整体呈破坏作用。该作用在微观层面上表现为冻融循环驱动土壤孔隙趋于长条状发育 ...
王文刚 +4 more
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