Gongye shui chuli, 2002 超声降解水体中有机污染物是近年来兴起的一项极具发展前景的新型水处理技术。在超声作用下,液体产生超声空化效应,可有效降解水中一些难降解大分子有机物。利用超声技术 (US)及超声与组合高级氧化技术(AOPs),例如US -H2O2,US -H2O2-FeSO4 对造纸废水进行处理。试验结果表明 :此技术可一定程度降解造纸废水中大分子有机物,造纸废水的CODCr及TOC均有一定程度降低 ...
周珊, 吴晓晖, 黄卫红, 陆晓华
doaj
Shuitu Baochi Xuebao目的为厘定不同水土保持措施下的径流小区发生产流产沙的场次降雨侵蚀性降雨标准，并探究侵蚀性降雨标准的影响因素。方法利用黄土丘陵区甘肃天水罗玉沟流域桥子沟试验场17个标准径流小区的2011—2020年降雨产流产沙观测资料，采用频率分析法和泥沙连通性IC值，评估不同水土保持措施下侵蚀性降雨标准及其影响因素。结果水土保持措施减小不同径流小区产流产沙，与对照小区相比，草地和林地小区的产流产沙下降最明显，减沙率分别为80.39%和79.78%，农地减沙率明显小于草地和林地，仅为47.41 ...
张继永 +3 more
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Shuitu Baochi Xuebao, 2016 以山东省禹城地区夏玉米农田为例，利用氢氧稳定同位素技术测定2015年夏玉米生长期茎干水、大气降水以及不同深度土壤水中δD和δ18O组成，利用直接对比法和多元线性混合模型法分析夏玉米对土壤水的利用情况，并分析农田降水-土壤水-作物水之间的转化规律。降水同位素测定结果显示禹城地区大气降水线方程为δD=6.55δ18O-3.03（R2=0.88），斜率和截距均小于全球大气降水线，表明蒸发是导致同位素富集的主要过程。对夏玉米生长期水分来源特征分析表明，出苗期主要利用表层0—15 cm土壤水，贡献率达73.9 ...
王冰洋, 孙少波
doaj
Shuitu Baochi Xuebao, 2011 在水稻黄熟期,通过对微区模拟稻田进行人工降雨试验,分析了60,48,17.4 mm/h 3个雨强处理(分别表示为y-b、y-m、y-s)条件下,不同滞水时间的田面水中氮磷的动态特征以及总氮、总磷的流失潜能,研究了不同雨强和滞水时间对稻田氮磷的减排效能。结果表明:(1)在3个雨强处理下,田面水中TN浓度在人工降雨后1 h为最高,y-s的田面水中TN浓度下降迅速;y-m和y-b的田面水积聚量较大,但在第5 d时其TN浓度也迅速下降到最低值。田面水中NH+4-N浓度整体水平较低,NO-3-N浓度总体水平较高 ...
冯国禄, 龚军慧
doaj
[Chronic iron overload induces diminished ovarian reserve in mice <i>via</i> iron metabolism dysregulation-mediated oxidative stress and endocrine dysfunction]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYu J, Chu J, Liang C.
europepmc +1 more source
[Bone marrow infiltration of large B-cell lymphoma with clinical manifestations similar to systemic lupus erythematosus: A case report]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanMa D +5 more
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[Establishment of an gastric dysfunction and depression comorbidity model simulating clinical etiology in mice using a combined stress protocol]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoHuang Q +7 more
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[<i>Wenyang Huazhuo Tongluo</i> Formula promotes angiogenesis in systemic sclerosis dermal microvascular endothelial cells by regulating the Sema3A/Nrp1 pathway]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoGuo K +7 more
europepmc +1 more source
[Finite element analysis of tibial fracture risk following lateral unicompartmental knee arthroplasty under varying bone conditions]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiLi Z, Huang T, Xu Y, Sun X.
europepmc +1 more source
[Expression and clinical significance of lymphocyte subsets in infectious pneumonia and immune-related interstitial lung disease]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhao D +7 more
europepmc +1 more source