Results 101 to 110 of about 532 (165)

光伏板配置对坡面产流产沙的影响

Shuitu Baochi Xuebao
目的为探究光伏板覆盖对坡面产流产沙的影响，探讨光伏场区的布设方式和水土保持措施。方法采用室内模拟降雨试验，设计光伏板倾角（30°、35°、40°），安装高度（0.4、0.6、0.8 m）及排列方式（光伏板长边与坡向垂直定义为横向排列L，光伏板长边与坡向平行定义为竖向排列V）3因素组合。对横向排列、安装高度0.8 m、倾角30°的光伏板坡面，增设条形石子与草垫防护措施，进行重复降雨试验。结果1）光伏板覆盖可降低坡面径流量和累计泥沙量，较裸露坡面（CK），最大降幅分别为26.8%、56.6 ...
杜月, 方怒放, 曾奕, 范锐, 胡雨点, 牛浩邦, 余颖, 常恒   +7 more
doaj  

户用沼气对三峡库区小流域农业面源污染的削减响应分析

Shuitu Baochi Xuebao, 2011
通过调查统计与现场采样,分析了三峡库区小流域农业面源污染的压力、状态和响应态势,确定了主要污染物、主要污染源、农业面源污染负荷容量及其削减量.采用清单分析方法,核算了小流域化学肥料施用、有机肥施用、农作物秸秆、畜禽养殖、农村生活污水、生活垃圾和农田土壤侵蚀等7个来源对农业面源污染化学需氧量(COD)、生化需氧量(BOD5)、全氮(TN)、全磷(TP)排放负荷及其贡献.并采用实地监测,分析了小流域水环境质量.王家沟小流域农业面源污染物COD、BODs、TN、TP的排放量分别为12 100,6 413,1 ...
杨志敏, 陈玉成, 陈庆华, 木志坚, 肖广全, 魏世强   +5 more
doaj  

深水钻井导管力学特性参数敏感性分析

Shiyou jixie, 2014
深水钻井导管受力复杂，影响因素较多，主要包括平台偏移、海流流速、土壤强度、固井质量和低压井口出泥高度等，确定各影响因素的优先等级是深水钻井导管钻前设计和现场作业急需解决的问题。建立了深水钻井导管力学分析模型，分析了导管的力学特性，采用正交试验方法安排仿真试验方案，对仿真试验结果进行极差分析和方差分析，从而确定各影响因素对深水钻井导管力学特性的影响大小和显著性。研究结果表明，导管最大应力值出现在泥线以下8 m左右，影响导管最大Mises应力的因素依次为平台偏移、导管外径、导管壁厚、海流 ...
李飞, 陈国明, 畅元江, 刘秀全, 刘康   +4 more
doaj  

[Risk factors for neonatal asphyxia and establishment of a nomogram model for predicting neonatal asphyxia in Hubei Enshi Tujia and Miao Autonomous Prefecture: a multicenter study]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi, 2023
Jin F, Chen Y, Liu YX, Wu SY, Fang CC, Zhang YF, Zheng L, Zhang LF, Song XD, Xia H, Chen EM, Rao XQ, Chen GQ, Yi Q, Hu Y, Jiang L, Li J, Pang QW, You C, Cheng BX, Tan ZH, Tan YJ, Zhang D, Yu TS, Rao J, Liang YD, Xia SW.   +26 more
europepmc   +1 more source

[Evaluating the performance of generative AI in assisting the differential diagnosis of weight loss]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Liu Y, Zhang Y, Cai D, Ren J.
europepmc   +1 more source

[Visual analysis of the current research status and hotspots of electric burns at home and abroad]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi, 2023
Chen HX, Huang YW, Liu WJ, Liu B, Chen GB, Zhang DD, Chen PY, Lai W.   +7 more
europepmc   +1 more source

[Preface for Special Issue on Advanced Molecular Imprinting Technology and its Cutting-Edge Applications]. [PDF]

Se Pu
Jia Q, Yang KG.
europepmc   +1 more source

[Evaluation of Gradient-Variant Quantum Dot Fluorescence Technology for Rapid Detection of <i>Brucella</i>]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Li J, Wang X, Wang J, Tian S, Zhao C, Wang X, Jian W, Li S, Zhang Q, Zhou L.   +9 more
europepmc   +1 more source

[Determination of polychlorinated naphthalenes in soil using accelerated solvent extraction-molecular sieves solid-phase extraction coupled with gas chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2022
Jin J, Liu H, Xue H, Yang J, Qu C, Ma H, Chen J.   +6 more
europepmc   +1 more source

[Expert Consensus on the Clinical Practice of Child Life Services]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Nursing Group Of Chinese Pediatric Society Chinese Medical Association, Nursing Branch China Maternal And Child Health A.   +1 more
europepmc   +1 more source