Using REE Tracers to Measure Sheet Erosion Changing to Rill Erosion
, 2003 利用REE元素示踪法,采取沿坡面垂直分层布设的新的试验布设方法,通过室内模拟降雨试验,研究了次降雨条件下坡面侵蚀形态的转变过程和细沟的发育发展过程。研究结果表明,降雨初期坡面以面蚀为主,细沟出现后,坡面侵蚀将加快加剧;随着降雨时间的延续,累积面蚀量和细沟累积侵蚀量都将逐渐增加,后者的增加速率大于前者,面蚀所占总侵蚀量的百分比随降雨时间呈曲线形式逐渐递减,细沟侵蚀则逐渐增加;试验结束时细沟侵蚀量分别为面蚀量的4～5倍。本研究为定量区分片蚀和细沟侵蚀量以及坡面侵蚀过程中片蚀向细沟侵的转变以细胞侵蚀发生 ...
刘普灵, 宋炜, 杨明义, 薛亚洲
core
[Aesthetic goals of hypospadias repair]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiTang Y.
europepmc +1 more source
Coupling Relationship Between Detachment Rate with Sediment Load and Rill Length
, 2001 土壤剥蚀是指由侵蚀动力引起的土壤颗粒从土壤母质移动的过程。细沟剥蚀土粒随着细沟股流中含沙量的增加而减少 ,已有的一些侵蚀模型 (如 WEPP)均提到了这一点。用黄土高原一种典型的粉壤土 ,在 5种坡度、3种流量下进行了细沟侵蚀模拟试验。对试验结果进行了回归 ,分析了黄土高原斜坡及陡坡地、细沟股流剥蚀率随含沙量以及沟长变化的函数关系。这对细沟侵蚀动力过程的研究深入 ...
张晴雯, 赵军, 雷廷武
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[Beckwith-Wiedemann syndrome with ganglioneuroblastoma: a case report]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiTou JF, Feng CY, Xu B, Ye JJ.
europepmc +1 more source
, 2017 细沟侵蚀规律的解译对于坡面治理具有重要的理论与实践意义． 通过 10m 坡长条件下 10°和 25°坡面人工模拟降雨试验与高清摄像技术，研究了细沟侵蚀 的时空动态变化特征． 结果表明 10°坡面单位坡长总侵蚀量和细沟侵蚀量均随 距坡顶距离的增加先增大后减小，而 25°坡面却呈现不断增加的趋势，但其增加 速率逐渐减小． 10°坡面平均含沙量随降雨历时先减少后增加，而 25°坡面却先 增加后减少． 高清摄像技术可表征降雨过程中细沟平面形态变化，25° ...
孙莉英, 盛贺伟, 蔡强国
core
[Association between Y chromosome microdeletions and tes-ticular development in male pediatric patients with congenital reproductive system diseases]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLiang Y +5 more
europepmc +1 more source
[Retrospective analysis of localized juvenile spongiotic gingival hyperplasia]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiLin Y, Cao R, Yao R, Shang J.
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[46,XY disorder of sex development caused by <i>PPP1R12A</i> gene variants: a case report]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiSu W +6 more
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[Neonatal-onset multisystem inflammatory disease in a neonate caused by a <i>de novo</i><i>NLRP3</i> variant]. [PDF]
Zhongguo Dang Dai Er Ke Za ZhiGao FH +4 more
europepmc +1 more source
[Clinicopathological analysis of mesonephric-like adenocarcinoma in the corpusuteri: A report of 3 cases]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanWang X, Li L, Zhang W, Wang H.
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