[Preparation of porous boron nitride-doped polypyrrole-2,3,3-trimethylindole solid-phase microextraction coating for polycyclic aromatic hydrocarbon detection]. [PDF]
Se Pu, 2023 DU J +5 more
europepmc +1 more source
Gaoya dianqi输电电缆线路运行电流较大，电缆支架涡流损耗和温升的问题被广泛关注，急需寻找一种损耗小、温升低、经济性能良好的支架材料。文中采用多物理场耦合的有限元分步仿真计算方法对220 kV电缆线路的钢、不锈钢和新型玄武岩复合材料支架的涡流损耗和温升进行计算。首先在频域下计算涡流损耗，之后再以涡流损耗作为热源，在瞬态下进行电磁场—温度场—流体场三场耦合计算，从而计算出支架温度分布。该方法在保证计算精度的前提下极大降低了计算的复杂度。计算结果表明：钢支架涡流损耗远大于不锈钢支架和玄武岩支架的涡流损耗。电缆电流为1 ...
周秀 +7 more
doaj
[Solid phase microextraction of benzenes in river water by pomelo peel biochar]. [PDF]
Se Pu, 2022 Chen J +5 more
europepmc +1 more source
[Preparation and application of graphene oxide functionalized melamine-formaldehyde aerogel coated solid-phase microextraction tube]. [PDF]
Se Pu, 2022 Sun M +6 more
europepmc +1 more source
[Recent advances in the use of graphene for sample preparation]. [PDF]
Se Pu, 2022 Feng J +5 more
europepmc +1 more source
[Determination of ethylene oxide and acetaldehyde in petrochemical exhaust based on thermal desorption- gas chromatography-mass spectrometry]. [PDF]
Se PuLi YJ.
europepmc +1 more source
[Construction and practice of the "Construction Supports Competitions-Competitions Nurture Teaching-Teaching Promotes Learning" closed-loop innovative teaching mode： a case study of micro-plasma emission spectrometer setup and trace element analysis experiment]. [PDF]
Se PuXue WY +8 more
europepmc +1 more source
Gaoya dianqi, 1971 广州所研制成功了#132不去锈涂料,经试验性能良好,可以在机械、化工、交通和其它钢板结构件的制造和维修中推广使用,对不宜喷砂和不宜酸洗的大型零部件,#132涂料最适合。 以前金属表面涂漆之前,都要进行除锈,这要花费大量的人力、物力和时间 ...
doaj
[Research advance of solid-phase microextraction based on covalent organic framework materials]. [PDF]
Se PuCheng YC +8 more
europepmc +1 more source
[Applications of molecularly imprinted solid-phase microextraction coupled with chromatography/mass spectrometry for determination of drug residues]. [PDF]
Se PuYan J +8 more
europepmc +1 more source