Results 71 to 80 of about 962 (103)

砒砂岩泻溜侵蚀的坡向分异及其与气象因素的响应

Shuitu Baochi Xuebao
[目的] 泻溜作为砒砂岩区典型的重力侵蚀方式,已成为沟道内重要的粗砂物质来源,严重威胁流域生态安全,明确该地区侵蚀机理对黄河流域生态保护和高质量发展战略具有重要意义。[方法] 以内蒙古砒砂岩沟坡系统为研究对象,基于野外定位监测,利用三维激光扫描技术,分析不同坡向下沟坡侵蚀界面微地形变化与侵蚀特征的时空变化规律及其与气象要素之间的响应关系。[结果] (1)砒砂岩沟坡存在明显的泻溜侵蚀现象,且坡向分异较为明显。其中,阴坡平均侵蚀面积占研究区总面积的43.11%,阳坡平均侵蚀面积占研究区总面积的45.48 ...
任亚楠, 李龙, 张尚轩, 张宇, 周星辰   +4 more
doaj  

[Adolescent depressive disorder: prevalence, risk factors, current status of diagnosis and treatment, and challenges]. [PDF]

Zhongguo Dang Dai Er Ke Za Zhi
Cong EZ.
europepmc   +1 more source

[Bioactive substances delivery for bone repair via nanocomposites: advantages, mechanisms, and emerging trends]. [PDF]

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ma Y, Du Z, Wang J, Li X.
europepmc   +1 more source

[Clinical analysis of endoscopic transnasal resection of skull base chondrosarcoma]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Yang X, Yan B, Wei W, Liu J, Wang Z.
europepmc   +1 more source

[Ectopic pituitary tumor of sphenoid sinus: a case report]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Pang Y, Zhu D, Sha J, Zheng J, Yang M, Jin G.   +5 more
europepmc   +1 more source

[Tonsillar malignant melanoma presenting as sore throat and tonsillar mass: a case report and literature review]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Xu Z, Xu K, Lu X.
europepmc   +1 more source

[A single-center study on the clinical characteristics of 15 cases of large granular lymphocytic leukemia]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Xie X, Li HL, Wang Q, Li J, Liu L, Wang L, Luo XH.   +6 more
europepmc   +1 more source

[Analysis and Projection of the Burden of Chronic Respiratory Diseases Attributable to Smoking in China, 1990-2021]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Xie X, Lin D, Li M, Ye X, Fang J, Zhang X, Xue A.   +6 more
europepmc   +1 more source

[Characterastics and determinants of upper airway collapse in OSA patients with different genioglossus negative pressure reflex patterns during DISE]. [PDF]

Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Zhou Y, Xu J, Cao X, Yin G, Zhang Y, Ye J.   +5 more
europepmc   +1 more source

[Analysis of setup errors and their correlation with clinical factors in image-guided radiotherapy for prostate cancer using different immobilization devices]. [PDF]

Nan Fang Yi Ke Da Xue Xue Bao
Guo X, Liu Y, Xiong Y, Liu B, Song T, Li Y.   +5 more
europepmc   +1 more source