Results 11 to 20 of about 426,792 (131)
, 2005 本发明公开了一种便携式降雨模拟装置，该装置包括支撑架、降雨模拟喷管、模拟降雨供水装置，支撑架由支腿和框架构成，框架安装在支腿上，并通过支腿与地面相固定，降雨模拟喷管包括输水主管和一组喷管，各喷管相互平行排列在一个平面内，每根喷管上均设置有一定数量和一定间隔的喷头，输水主管架设并固定在支撑架上，所述输水主管一端与模拟降雨供水装置相连通，模拟降雨供水装置包括水泵及水箱。本便携式降雨模拟装置克服了天然降雨的无法测量降雨量的缺点，还因其可拆卸的优点，为在野外，自然山体的环境下研究山体滑坡的原体测量提供了方便 ...
李连祥, 刘曰武
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, 2015 本发明公开一种人工模拟降雨雾化的方法和装置，所述装置包括：水气两用喷头、高压导气管、空气压缩机和变频器，其中，所述水气两用喷头的进水口与降雨管路的供水端口连接，所述水气两用喷头的进气口与高压导气管的一端连接，所述高压导气管的另一端连接空气压缩机，所述空气压缩机与变频器相连。本发明在小雨强降雨的时候打开空气压缩机将带有压力的空气通过水气两用喷头与被降雨水混合，通过高压气体将被降雨水喷射，从而达到预设喷射角度和雾化效果，避免了现有人工降雨设备的不足。另外，通过调节变频器，可以根据雨强调整空气压缩机的输出气压，
李世海 +5 more
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Integrative Conservation, Volume 4, Issue 3, Page 362-380, September 2025.Occurrences of dust storms and long‐distance movement of dust across landscapes is constantly increasing in south Asia. This dust is expected to have profound impact on vegetation health and sustainability as dust may contribute to nutrient budgets of the forest ecosystems, while it could impart various stresses to the plants.
Shree P. Pandey +2 more
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Conservation Biology, Volume 39, Issue 4, August 2025.Abstract Marine protected and conserved areas (MPCAs) are promoted as an ecosystem‐based adaptation (EbA) approach to increase community and ecosystem resilience to climate change. However, traditional approaches to MPCA design typically do not consider climate risk or habitat condition under a climate threat.
Alyssa L. Giffin +6 more
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Veterinary Dermatology, Volume 35, Issue 5, Page 500-507, October 2024.Abstract Background Canine atopic dermatitis (cAD) is a hereditary, generally pruritic and predominantly T‐cell‐driven inflammatory skin disease, involving an interplay between skin barrier abnormalities, allergen sensitisation and microbial dysbiosis.
L. Widorn +2 more
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Integrative Conservation, Volume 3, Issue 3, Page 168-182, September 2024.Using long‐term field data, we examined the impact of severe droughts on the health, reproductive success, and behavior of the critically endangered Verreaux's sifaka (Propithecus verreauxi) in Madagascar's seasonally dry tropical forest. Despite reduced availability of high‐quality foods, sifaka exhibited stable body condition and reproductive success,
Carrie C. Veilleux +2 more
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运用Gash修正模型对祁连山北麓中段青海云杉林降水截留的模拟
Shuitu Baochi Xuebao, 2020 选择祁连山北麓中段排露沟流域青海云杉林为研究对象，基于2019年生长季（5—9月）降水截留观测数据、气象数据和林地调查资料，对其降水截留过程进行分析，运用Gash修正模型模拟青海云杉林降水截留过程。结果表明：研究期间林外大气降雨总量为418.7 mm，降雨主要为中、小雨。穿透雨量、树干茎流量、林冠截留量分别为284.5，6.7，127.5 mm，占大气降雨总量的比例分别为67.94%，1.60%，30.46%。根据Gash修正模型模拟结果，穿透雨量、树干茎流量、林冠截留量值分别为302.2，3.7 ...
武秀荣 +7 more
doaj
Shuitu Baochi Xuebao, 2023 通过野外微小区原位观测试验,基于降雨过程中降雨的集中时段对2017—2021年34次侵蚀性降雨雨型进行划分,系统分析雨型变化对黄土坡面细沟间侵蚀的影响及坡度效应。结果表明:研究区以前期型降雨为主,占总场次的52%,中期型和后期型降雨各占24%。中期型降雨对总产流量的贡献(25.56%±3.83%)显著低于前期型(36.70%±2.07%)和后期型(37.74%±4.01%)(p中期型>前期型,后期型和中期型降雨显著高于前期型。而降雨的场均产沙量则表现为后期型>前期型>中期型,且后期型降雨显著高于中期型 ...
伍林 +6 more
doaj
, 2011 利用北川地区土性参数和地形条件,对降雨作用下的渗流特性进行了数值模拟。采用修正的Mohr-Coulomb模型,引入了非饱和理论用于饱和-非饱和渗流的分析。通过数值模拟得出了土体饱和度、孔隙水压力分布及其随降雨历时的变化情况,使得对降雨坡体失稳问题的认识更加直观和清楚。土体饱和度增加,孔隙水压力增大,基质吸力减小,使得土体抗剪强度不断减小甚至丧失 ...
崔鹏, 鲁晓兵, 叶天立
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