Results 41 to 50 of about 2,358 (93)

土壤初始含水率对浑水膜孔灌自由入渗特性影响

Shuitu Baochi Xuebao, 2016
为揭示土壤初始含水率对浑水膜孔灌单点源自由入渗的影响，通过开展不同初始含水率的室内浑水膜孔灌试验，研究了土壤初始含水率对浑水膜孔灌自由入渗特性、减渗特性以及土壤含水率分布的影响，并建立了基于土壤初始含水率和累积入渗时间的浑水膜孔灌自由入渗模型和减渗模型。研究表明：当浑水的含沙率和膜孔的直径一定时，随土壤初始含水率的增大，相同时间内的单位膜孔面积累积入渗量呈逐渐减小的趋势，初始含水率为4.96%，7.43%，10.07%和12.40%的分别较风干条件下的减少了19%，33%，45%和56%，减渗效果明显 ...
金世杰, 费良军, 傅渝亮, 王锦辉, 钟 韵, 陈 琳   +5 more
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[Determination of perfluorinated compounds， antibiotics and pesticides in drinking water by automated solid phase extraction with ultra-performance liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Liang J, Feng J, Zeng D, Zhou L, Zhong X, Li Y, Chen D.   +6 more
europepmc   +1 more source

[Effect of different induction chemotherapy regimens on autologous hematopoietic stem cell mobilization in patients with multiple myeloma in the new drug era]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Wang XL, Pan MM, Jin SW, Gao S, Pan ZK, Wang Y, Tao Y, Mi JQ, Zhang WP.   +8 more
europepmc   +1 more source

[Tumor-secreted dentin sialophosphoprotein induces oxaliplatin resistance in colorectal cancer through an integrin αvβ3-dependent pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Liu C, Ning Z, Wu J, Liu W, Lin C, Xu J, Zhou R, Zhao L.   +7 more
europepmc   +1 more source

[Determination of 38 antibiotic residues in honey by magnetic dispersive solid-phase extraction-liquid chromatography-tandem mass spectrometry]. [PDF]

Se Pu
Sun J, Zhang Y, Liu FM, Zhao W, Jin Y, Zhang L, Xue XF, Chen R, Zhou HT.   +8 more
europepmc   +1 more source

[<i>Huayu Tongbian</i> Decoction promotes efferocytosis of interstitial Cajal cells in rats with slow transit constipation by inhibiting the PI3K/Akt signaling pathway]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Qiu J, Chen M, Man R, Chen X, Qiu D, Chang Q, Ma H.   +6 more
europepmc   +1 more source

[Antimicrobial resistance characteristics of <i>Escherichia coli</i> in infants younger than 90 days]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Zhang DM, Zhou L, Chen Y, Zou PC, Xiao RQ, Ma LJ, Wang YJ.   +6 more
europepmc   +1 more source

北方土石山区冻融与水力复合作用对土壤侵蚀的影响

Shuitu Baochi Xuebao
[目的] 揭示冻融与水力作用在不同条件下对北方土石山区土壤侵蚀的影响。[方法] 以北京市鹫峰地区土壤为研究对象,采用室内径流冲刷及冻融设备进行模拟试验,探讨在冻融与水力作用下冻融循环次数、坡度、流量、土壤初始含水率和冻融温差这5个影响因素对土壤产沙量与抗冲性的影响。[结果] (1)土壤抗冲系数对各因素敏感程度大小为坡度>流量>冻融温差>冻融循环次数>初始含水率,其中坡度与流量对其具有显著影响(p 坡度>冻融温差>土壤含水率>冻融循环次数,其中流量对其具有极显著影响(p
杨浩宇, 马岚, 陈仕媛
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[Ethanol promotes oxaliplatin resistance in colorectal cancer by activating the TGF‑β/Smad/P21 signaling axis]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Tan B, Weng N, Zeng W, Gu J, Weng L, Wen H, Xiao H, Zheng K.   +7 more
europepmc   +1 more source

桑干河流域淤地坝沉积泥沙特征及其来源解析

Shuitu Baochi Xuebao
[目的] 为查明桑干河流域的泥沙主要策源地和侵蚀产沙变化。[方法] 选取阳原县高墙乡典型淤地坝沉积泥沙为研究对象,利用复合指纹识别技术,测定沉积泥沙及其源地的土壤粒径、SOC、TN、137Cs、低频质量磁化率等9种指纹因子,研究了不同淤积阶段的泥沙策源地及坝控小流域侵蚀产沙演变规律。[结果] (1)沉积泥沙中137Cs平均含量较低,与沟壁土壤无显著差异(p>0.05),但极显著小于林草地和耕地的137Cs含量(p耕地(15.36%±8.46%)>林草地(1.96%±0.33%);(3 ...
谢骁健, 苏正安, 周涛, 王丽娟, 周铃   +4 more
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