Results 61 to 70 of about 1,418 (108)

喀斯特地区不同时间尺度农业干旱对局地

Shuitu Baochi Xuebao
[目的] 为定量解析喀斯特地区农业干旱对单因子的响应机制。[方法] 利用泰森多边形及K阶均值聚类对贵州省83个站点年平均降雨量进行面积计算及分类,将贵州省划分为5个区域,并基于各分区降雨量(Pre)、平均气温(T)、潜在蒸散发(E)、风速(W)、气压(P)、土壤水分(SW)、标准化土壤水分指数(SSI)建立向量自回归(VAR)模型,通过脉冲响应与方差分解分析不同时间尺度农业干旱对各气象因子及土壤水分含量的响应机制。[结果] (1)农业干旱呈现西高东低,总体由南往北逐渐减轻;春、夏季农业干旱强于秋冬季 ...
余欢, 贺中华, 顾小林, 许明金, 谭红梅, 杨树平, 杨秋云   +6 more
doaj  

[Association between indicators of arterial stiffness and all-cause mortality and cardiovascular deaths: A prospective cohort study]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Fan M, Wang M, Wang S, Peng H, Wang X, Guo H, Hou T, Qin X, Chen D, Hu Y, Li J, Wu Y, Wu T.   +12 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

[Chain mediating role of family care and emotional management between social support and anxiety in primary school students]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Li ZW, Wei JH, Chen KB, Ruan XR, Wen YT, Zhou CL, Tang JP, Wang TT, Tan YQ, Qin JB.   +9 more
europepmc   +1 more source

[Simultaneous detection of 34 pesticide and metabolite residues in vegetables and fruits using improved QuEChERS-gas chromatography-tandem mass spectrometry with carboxylated multi-walled carbon nanotubes]. [PDF]

Se Pu
Zhang XZ, Wang XM, Chen J, Zhang Z, Ding H, DU XZ, Lu XQ.   +6 more
europepmc   +1 more source

[Magnetic one-step purification-high performance liquid chromatography-triple quadrupole/composite linear ion trap mass spectrometry for the determination of 54 veterinary drug residues in carp]. [PDF]

Se Pu
Wen YP, Huo WD, Zhang CY, Liu H, Mu YC, Wu LD, Li JC.   +6 more
europepmc   +1 more source

[Latent profile types and influencing factors of medication adherence mechanisms among rural older adults with multiple chronic conditions]. [PDF]

Zhong Nan Da Xue Xue Bao Yi Xue Ban
Yan Z, Zhou J, Chen X, Wang Y.
europepmc   +1 more source

[Rapid screening of 111 pesticides and veterinary drugs in livestock and poultry meat by ultra performance liquid chromatography-quadrupole-time of flight mass spectrometry]. [PDF]

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

[Recent applications of porous-material-based adsorbents for extracting pesticide residues from environmental and foodstuff samples]. [PDF]

Se Pu
Xu QT, Yu M, Xie C, Cao Y, Mei SR.
europepmc   +1 more source

[Simultaneous identification and detection of four novel isoxazoline drugs in bovine-origin foods using ultra-high performance liquid chromatography coupled to quadrupole/linear ion trap mass spectrometry]. [PDF]

Se Pu
Yang C, Zhu WX, Liu YF, Wei W, Zhao F, Hu K, Zhao WJ.   +6 more
europepmc   +1 more source