Results 121 to 130 of about 305 (134)

[Synthesis of fluorinated nitrogen-rich porous organic polymers and removal of perfluorooctanoic acid from water]. [PDF]

Se Pu
Chen X, Qian WP, Chen TQ, Shao LY, Zhang WF, Zhang SS.   +5 more
europepmc   +1 more source

一种测量地表温度的方法

, 2010
本发明涉及一种测量地表温度的方法，该方法是利用了土壤蒸发渗透仪进行测量地表温度，将土壤蒸发渗透仪的口缘固定水平，高出地面7.5cm，并在蒸发渗透仪内的土面上安装地温表，每天定时向蒸发渗透仪内加水，至溢流为止，按照加排水量的差+降水量计算出土面日蒸发量，再按照地面气象观测规范要求对地温表读数，采用常规计算方法进行计算日平均温度即可。采用该方法增加了站际间地表温度和土面蒸发的可比性，克服了由于各站的土壤含水量不同 ...
王积强.
core  

[Comprehensive undergraduate experiment: determination of phenylurea herbicide in tea by magnetic solid-phase extraction-high performance liquid chromatography]. [PDF]

Se Pu
Liu Z, Su Y, Yang DW, Li LM, Xu X.
europepmc   +1 more source

Research on the Different Techniques for Soil Water Retention under drip-irrigation with saline waterin the Hinterland of Taklimakan Desert

, 2010
极端干旱区大气蒸发潜力极强，农田和生态工程灌溉水的很大部分都以土壤蒸发形式损失掉，同时土壤蒸发还造成次生盐渍化。因此，抑制土壤水分蒸发成为干旱区节水的重要途径。为比较不同土壤蒸发抑制技术的应用效果，在位于塔克拉玛干沙漠腹地的塔中地区应用三种保水技术（土壤蒸发抑制剂、塑料地膜、干沙覆盖）开展两个试验：微型蒸渗仪（Micro–lysimeter）控制试验和田间试验。试验监测了剖面土壤含水量、剖面土壤盐分含量；计算了土壤水分蒸发损失量；分析了土壤温度变化特征及沙拐枣幼苗生长状况。得到如下主要结论：（
孙旭伟
core  

[Determination of 26 perfluorinated and polyfluoroalkyl compounds in human serum by solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Yue YX, Bian YT, Cheng YF, He L, Wang D, Yan PX, Yan W, Liu GY, Song H, Liu LP.   +9 more
europepmc   +1 more source

[Determination of 17 perfluorinated/polyfluoroalkyl compounds in serum by high-throughput solid-phase extraction-ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Lin Q, Wang J, Li JJ, Su DX, Li ML, Wang J, Niu YM, Shao B.   +7 more
europepmc   +1 more source

滴灌与沟灌马铃薯覆膜效应研究

田间对照试验研究薄膜覆盖对滴灌土壤水分分布与消散过程及滴灌和沟灌马铃薯生长的影响结果表明 ,马铃薯生长前期覆膜能明显减少表层土壤蒸发 ,并使表层土壤维持较高的含水量。马铃薯生长中后期蒸腾作用占主导地位 ,覆膜对减少表层土壤蒸发作用较小 ...
刘士平, 康跃虎, 王凤新
core  

[Application advances of mass spectrometry imaging technology in environmental pollutants analysis and their toxicity research]. [PDF]

Se Pu
Li F, Luo Q.
europepmc   +1 more source

[Preparation and antitumor activity of sulfated exopolysaccharide from Rhizopus nigricans]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao, 2019
Qin G, Shao T, Li P, Zhou Y, Li Y, Hong X, Li Z, Wang G.   +7 more
europepmc   +1 more source

[Determination of eight neonicotinoid pesticides in wastewater by solid phase extraction combined with liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Wang HT, Li HY, Lu QW, He SL.
europepmc   +1 more source