[Digital aesthetic-driven flowable resin injection restoration]. [PDF]
Li Y +6 more
europepmc +1 more source
[Clinical effects of free transplantation of expanded ilioinguinal flaps in the reconstruction of severe scar contracture deformity after extensive burns]. [PDF]
Chen L, Zhang W, Xie WG, Yang F, Li Z.
europepmc +1 more source
坡面土壤侵蚀过程和机理历来是土壤侵蚀研究的重点,直接影响到土壤侵蚀预报模型的建立和发展。由于问题的复杂性以及研究手段的相对局限性,对坡面土壤侵蚀过程尤其是侵蚀形态转变等问题的定量描述仍需进一步研究。本文以黄土坡面土壤侵蚀形态演变规律为研究重点,以新的核素示踪技术为手段,采用水动力学与核素示踪技术相结合、室内人工模拟降雨与稳定性REE元素示踪相结合的方法,利用先进的INAA技术,定量研究了不同雨强次降雨条件下细沟间侵蚀向细沟侵蚀的转变过程、细沟发生发育过程,为深入了解坡面侵蚀过程 ...
宋炜
core
[Clinical effects of harvesting superficial circumflex iliac artery PSP flaps via the subdermal approach to repair skin and soft tissue defects in hands and feet]. [PDF]
Zhu XW +5 more
europepmc +1 more source
[Effect of modified titanium loaded with endothelial progenitor cells-exosomes on osteogenic and angiogenic differentiations of adipose-derived stem cells]. [PDF]
Wang J, Tang L, Liu H, Qiu Y.
europepmc +1 more source
该文通过野外调查、定位监测和野外人工径流冲刷试验,结合土壤容重试验资料,在对沟坡道路侵蚀分类研究的基础上,对不同沟坡道路侵蚀的影响因素进行了综合分析 ...
周保林, 赵克信, 郑世清
core
[Resin short post retention for reattachment of a fractured crown in a young permanent tooth with complicated crown-root fracture and root fracture: a case report]. [PDF]
Wang Y, Chang H, Zhang B, Liao Z.
europepmc +1 more source
Coupling Relationship Between Detachment Rate with Sediment Load and Rill Length
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 ...
雷廷武, 赵军, 张晴雯
core
[Application and challenges of tissue engineered scaffolds in treatment of long-segment laryngotracheal stenosis]. [PDF]
Yu Q +7 more
europepmc +1 more source
[目的] 为研究降雨、汇流和坡度对浅沟侵蚀的影响,实施精确的水土保持措施。[方法] 通过室内模拟降雨和汇流试验,设计2个降雨强度(50,100 mm/h)和2个坡度(3°,7°),并在4种降雨强度和坡度组合下设置5个依次增加的汇流强度(15,30,45,60,75 L/min),分析降雨、汇流和坡度及其交互作用对浅沟坡面侵蚀的影响,明确浅沟侵蚀对坡面侵蚀的贡献。[结果] (1)坡度和汇流强度对浅沟坡面侵蚀的影响均大于降雨强度。当降雨强度由50 mm/h增加到100 mm/h时,3°和7 ...
耿华杰 +6 more
doaj

