Results 71 to 80 of about 298 (124)

[New pretreatment method for detecting petroleum hydrocarbons in soil: silica-gel dehydration and cyclohexane extraction]. [PDF]

Se Pu, 2023
Qu J, Ni YW, Yu HR, Tian HX, Wang LX, Chen JP.   +5 more
europepmc   +1 more source

[Determination of tetracyclines in animal muscle tissues by ultra performance liquid chromatography- tandem mass spectrometry]. [PDF]

Se Pu
Chu K, Li JH, Wang QQ, Li XT, Wu S, Chen C.   +5 more
europepmc   +1 more source

[Study on quantitative analysis of bracket-induced nonlinear response of labio-cheek soft tissue during the orthodontic process]. [PDF]

Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Hua J, Ji L, Dai Q, Liang Z, Guo L, Chen T.   +5 more
europepmc   +1 more source

大高宽比矩形钢管混凝土柱压弯性能研究

Jianzhu Gangjiegou Jinzhan
为了研究大高宽比矩形钢管混凝土柱的压弯性能，对大高宽比钢管混凝土短柱进行偏压试验并结合有限元模拟补充了4组试件进行对比，包括不同偏心率、高宽比、钢管壁厚度、截面尺寸情况下柱性能的对比分析。最后参考常用的4本国内外规范进行柱承载力计算，对比并判断现有规范是否适用。结果表明：试件破坏模式均为长边鼓曲，当荷载小于极限承载力的80%时，横截面高度上的应变分布服从平截面假定；随着偏心率增大，柱延性提升，在偏心率超过0.205后，柱延性开始下降；随着壁厚增加，柱延性提升，在壁厚达到8 mm后，柱延性开始下降 ...
陈安英, 王晨曦, 王瀚钦, 完海鹰, 王兆峰   +4 more
doaj   +2 more sources

[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]

Se Pu
Yan J, Huang J, Peng S, Man M, Sun D, Liu P, Chen L, Li J, Fan H.   +8 more
europepmc   +1 more source

[Determination of phenoxyacetic herbicides, metabolites of organophosphorus and pyrethroid pesticides in human urine using solid phase extraction coupled with ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu, 2023
Zhang X, Han LX, Qiu T, Hu XJ, Zhu Y, Yang YW.   +5 more
europepmc   +1 more source

[Modified <i>Chaihu Shugan</i> Powder alleviates cholesterol gallstones in mice with liver depression syndrome by regulating gut microbiota and bile acid metabolism]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Liang R, Wang H, Li Z, Chen H, Wang Y, Min L.   +5 more
europepmc   +1 more source

[Determination of 26 herbicide residues in soil， sediment， and surface water samples using modified QuEChERS method combined with ultra-high performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Zhao L, Ma L, Huang LQ, Chen JB, Zhu WF.
europepmc   +1 more source

[Determination of dazomet and its metabolite methyl isothiocyanate residues in plant-derived foods by gas chromatography-triple quadrupole mass spectrometry]. [PDF]

Se Pu, 2022
Rong J, Xu M, Zhang Z, Zou Q, Xu D, Zhong J, Zhang S, LE Y, She Z.   +8 more
europepmc   +1 more source

[Prevalence and influencing factors of scoliosis among primary and secondary school students in Hunan Province, 2023]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Zhou Y, Luo M, Luo J, Xiao S, Chen Y, Tan Y, Wang F.   +6 more
europepmc   +1 more source