Results 11 to 20 of about 1,122 (146)
Soil Erosion and Its Spatial Distribution Characteristics in Three-River-Source National Park [PDF]
, 2023 [Objective] The Three-River-Source National Park (TRSNP) is considered to be the “water tower of China”, and is an important ecological security barrier in China.
Huang Tingting +5 more
core +1 more source
Shuitu Baochi Xuebao, 2021 明晰砒砂岩坡面侵蚀泥沙颗粒输移特征是研究黄河泥沙淤积问题的关键。采用水力、风力、冻融复合侵蚀实体模拟技术，研究在35°坡度和110 mm/h雨强条件下单一水蚀、冻融+水蚀、冻融+风蚀+水蚀3组不同侵蚀动力复合作用下，砒砂岩坡面侵蚀泥沙颗粒变化特征。结果表明：砒砂岩坡面在单一水蚀作用下以整体侵蚀为主，侵蚀泥沙颗粒变化稳定；冻融+水蚀作用下粗颗粒产出明显，冻融作用对粗颗粒的影响凸显；冻融+风蚀+水蚀作用下坡面稳定性最差，侵蚀泥沙颗粒变化最剧烈。复合侵蚀作用下坡面侵蚀过程以搬运粒径较大的泥沙颗粒为主 ...
高玄娜 +4 more
doaj
Differential Scanning Calorimetry Analysis of Vacuum Freeze-Dried Goat Milk and Fractionation Products(真空冷冻干燥的羊乳及其分离产物的差示扫描量热法分析) [PDF]
Shipin kexue jishu xuebao, 2021 To study the characteristics of differential scanning calorimetry (DSC) of freeze-dried goat milk and guide the production and processing of goat milk, the fractionation of raw goat milk was carried out by means of centrifugal separation, isoelectric ...
ZHANG Haoyang(张昊阳) +4 more
doaj +1 more source
Progress of the special-subjects study on the construction of comprehensive geological disaster prevention and control system in Yunnan Province [PDF]
, 2023 The establishment of the comprehensive geological disaster prevention and control system in Yunnan province stands as China’s most extensive and grand-scale endeavor in safeguarding the prevention and control of geological disasters in China.
Cheng HUANG +8 more
core +1 more source
Shuitu Baochi Xuebao, 2021 量化东北黑土区多种外营力作用的坡面复合土壤侵蚀过程，将为坡面水保措施的精确布置提供重要科学依据。基于野外模拟试验，分析了东北典型薄层黑土区（宾县）、中层黑土区（海伦市）和厚层黑土区（克山县）多营力叠加作用的坡面水蚀特征。野外模拟降雨的试验处理包括仅水蚀的试验处理（I）、冻融+水力叠加作用的试验处理（Ⅱ）和冻融+风力+水力叠加作用的试验处理（Ⅲ）。结果表明：与仅有水蚀作用的试验处理相比，冻融作用使典型薄层、中层和厚层黑土厚度区的坡面径流深度分别减小29.4%，39.3%，32.1 ...
何煦, 桑琦明, 郑粉莉, 王一菲
doaj
Creep characteristics of sandstone during freezing/thawing process [PDF]
The rock mass in cold regions is always subjected to the load and freeze-thaw. If the impact of long-term freeze-thaw mechanical behavior on sandstone mass is neglected, it would lead to significant hazards to the construction and safe operation of ...
Huimin YANG +5 more
core +1 more source
Shuitu Baochi Xuebao, 2022 为探究施加生物炭对冻融期盐渍化土壤蓄水保墒、保温、保肥的作用,以盐渍化土壤为研究对象,连续2年在河套灌区开展田间小区原位冻融试验,设置生物炭用量为15 t/hm2(D15),30 t/hm2(D30),不施加生物炭(CK)3种处理。结果表明:在冻融条件下,0—40 cm土层较40—100 cm土层水分垂直分布规律明显、储水能力强;除在试验第1年的初冻期施加生物炭使0—40 cm土层储水量有所降低外,随生物炭施加时间的增长,生物炭的持水作用逐渐显现,其中与CK相比D30处理更有利于土壤水分保持 ...
张如鑫 +4 more
doaj
Shuitu Baochi Xuebao, 2020 东北黑土区农田晚春冻融作用通过改变土壤物理性质而对风蚀作用有重要影响。基于室内冻融模拟试验与风洞试验，分析了东北典型黑土区前期冻融作用对土壤风蚀的影响。试验处理包括3个土壤含水量（16.5%，24.8%，33.0%）、3个风速（9，12，15 m/s）、1次冻融循环。试验过程是先将装有不同含水量土壤的试验土槽进行冻融循环模拟，然后将冻融后的土壤在室温下自然风干（至其土壤含水量为6.0%~7.0%）后进行风洞试验。结果表明：前期土壤冻融作用显著增加了风蚀量和输沙量 ...
王一菲 +6 more
doaj
Methods in Ecology and Evolution, Volume 17, Issue 4, Page 1143-1160, April 2026.Abstract DNA barcode‐based species identification has become pivotal in biodiversity research. Current barcoding‐based deep learning methods have advantages in species identification but exhibit significant limitations. By using COI barcoding alone, previous studies were unable to fully capture species identification features. Prior methods showed that
Bin Ye +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Harnessing solar energy for self‐heating presents an effective strategy to suppress surface ice formation. In this paper, we fabricated nano‐silver‐modified multilayer graphene sheets (Ag@MGs) that integrate photothermal and superhydrophobic properties for anti‐icing applications.
Yihan Zhang +7 more
wiley +1 more source