[Determination of sixteen antibiotics and four β-agonists in human urine samples using ultra-performance liquid chromatography-tandem mass spectrometry based on high-throughput automatic solid-phase extraction]. [PDF]
Li ZH, Hu XJ, Lu YF, Xie LN, Zhu Y.
europepmc +1 more source
[Research advance of solid-phase microextraction based on covalent organic framework materials]. [PDF]
Cheng YC +8 more
europepmc +1 more source
[Polyamidoamine dendrimer-functionalized silica nanocomposite with polydopamine coating for dispersive micro solid-phase extraction of benzoylurea insecticides in water samples]. [PDF]
Cui X, Ma W, Lin X, Lu R, Gao H, Zhou W.
europepmc +1 more source
[Advances in the development of analysis techniques for organophosphate diesters in water]. [PDF]
Chen J +8 more
europepmc +1 more source
[Recent developments of pesticide adsorbents based on cyclodextrins]. [PDF]
Zhang J, Li P, Ma J, Jia Q.
europepmc +1 more source
为了减小杆塔接地装置的占地面积,提出杆塔基础和长垂直接地体组合接地方案,为输电线路杆塔接地工程设计提供参考和依据。首先比较了传统接地装置和组合接地装置的占地面积,然后分析了各种影响因素作用下接地装置的接地电阻,最后考虑人身安全因素,得到了满足接地电阻和电位差要求的土壤电阻率范围。结果表明:组合接地方案能够满足小于2 000 Ω·m土壤环境的接地电阻要求,能够满足小于200 Ω·m土壤环境的接触电压要求。在季节性冻土地区或深层土壤电阻率较低时,宜采用组合接地装置进行杆塔接地设计。
李望增, 谭金河, 王琳
doaj
[Application of nanocellulose in flexible sensors]. [PDF]
Sun P, Du Y, Yuan X, Hou X, Zhao J.
europepmc +1 more source
[Annual review of capillary electrophoresis technology in 2020]. [PDF]
Wei B, Ma Y, Tian W, Zhao X, Qu F.
europepmc +1 more source
[Molecularly imprinted polymers: novel green preparation methods and cutting-edge applications review]. [PDF]
Li F +5 more
europepmc +1 more source
目的为深入了解土壤电阻率与土壤水分的关系,以实现土壤水分非侵入、高分辨率、连续监测的需求。方法以黄土丘陵区典型小流域的草地、玉米地和山地苹果园为研究对象,采用电阻层析成像技术(ERT),结合烘干法实测数据,构建不同土地利用类型下的电阻率-含水率反演模型,并评估其在不同土层和季节下的稳定性与适用性。结果各类型样地土壤电阻率与含水量之间呈幂函数关系,模型均方根误差(RMSE)均低于5%,其中天然草地模型精度最高(R²=0.735,RMSE=1.70%)。2024年7—9月3期ERT数据表明,发生有效降雨后 ...
周书仪 +4 more
doaj

