Results 91 to 100 of about 941 (158)
[Clinical analysis of endoscopic esophageal dilation for the treatment of corrosive esophageal strictures in children]. [PDF]
Zhongguo Dang Dai Er Ke Za Zhi, 2023 Tang LJ, Lou JG, Zhao H, Peng KR, Yu JD.
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Shuitu Baochi Xuebao, 1994 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，并对沟坡防蚀道路进行规划设计和效益评价。
郑世清 赵克信
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Shuitu Baochi Xuebao[目的] 为明确长冲河小流域土壤侵蚀与水文泥沙连通性的分布特征及耦合关系,为该区的水土流失治理、土壤侵蚀科学防治提供依据。[方法] 通过GIS平台,采用RUSLE模型并引入连通性指数(IC)和地形湿度指数(TWI),定量评估长冲河小流域2021年的土壤侵蚀和水文泥沙连通性分布特征,探讨小流域不同坡度、土地利用、高程和坡向对不同土壤侵蚀强度、水文泥沙连通性等级的影响,并通过空间自相关分析土壤侵蚀与水文泥沙连通性的耦合关系。[结果] (1)长冲河小流域平均土壤侵蚀模数为380 t/(hm2·a ...
李嘉宁 +4 more
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Shuitu Baochi Xuebao, 2008 考察了三峡库区嘉陵江岸5种耐水淹植物的根系在土壤表层(0-30 cm)的分布特征,从抗冲性和抗蚀性两个方面明确了它们对土壤抗侵蚀的增强效能,并对其根长密度(RLD,root length density)进行了分析。研究发现:(1)狗牙根、空心莲子草、牛鞭草和野古草的根系生物量主要分布在土壤上表层(0-10 cm),荻根系生物量在土壤表层分布比较均匀;(2)狗牙根、牛鞭草和野古草的RLD及D(直径)≤1 mm RLD在土壤上表层分布较多,荻和空心莲子草的RLD及D≤1 mm RLD在上、中表层(10 ...
XU Shao-jun, ZENG Bo
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Shuitu Baochi Xuebao, 2001 通过径流冲刷试验，运用能量守恒原理，分析了坡面土壤侵蚀率（Dr)与径流能耗（ΔE）之间的关系，建立了给定土壤条件下坡面土 侵蚀率估算模型，结果表明，坡面土壤侵蚀的发生具有一定的临界能量条件，以径流能耗作为土壤侵蚀形成的临界参数具有明确的物理意义，当径流能耗大于7．387J时坡面开始有侵蚀发生。
丁文峰 李占斌 等
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[Defect modification of calcium silicate and its application in oral bacteriostasis and tooth remineralization]. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiHu Y +6 more
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[Risk factors associated with non-radiographic bone erosion in patients with gout]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLiu W +7 more
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[Effectiveness analysis of mini external fixator combined with bone cement spacer in treatment of gouty hallux rigidus with bone defect]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiPan P, Lin H, Wang L.
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[Advances in oral and craniofacial bone regeneration modulated by stem cells and biomaterials]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanLi Z +6 more
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Dental erosion caused by glucocorticoid therapy in a patient with optic neuritis: a case report. [PDF]
Hua Xi Kou Qiang Yi Xue Za Zhi, 2023 Shang M, Wei Y, Yu M, Zhang J, Cui P.
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