Results 61 to 70 of about 962 (103)

[Accuracy of dynamic navigation-assisted trephine method for bone harvesting]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Liu J, Zhu N, Chang Y, Gao X, Zhang Y.
europepmc   +1 more source

DEM坡度因子对坡耕地语义分割的敏感性研究

open access: yesRenmin Zhujiang
探究数字高程模型(Digital Elevation Model,DEM)及其衍生坡度因子在坡耕地语义分割任务中的敏感性,提升坡耕地提取精度;以贵州黔西坡耕地为研究区,构建融合DEM与坡度因子的多源数据集,对比单一光学影像数据集,采用ResNet-UNet、DeepLabv3和SegNet三种语义分割模型进行训练与验证,通过测试集评估分类性能;融合地形数据后,ResNet-UNet与DeepLabv3性能显著提升,其中DeepLabv3整体精度达0.834 4,交并比(Intersection over
姚飞   +5 more
doaj  

[An investigation study on the technology and training level of ski patrol]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Bai P   +7 more
europepmc   +1 more source

[Research progress in central aortic pressure estimation algorithms]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Du S, Zhou S, Wang G, Zhu H, Xu L.
europepmc   +1 more source

[Comparative study on accuracy of three imaging methods in diagnosis of subacromial impingement syndrome]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zi L   +7 more
europepmc   +1 more source

[Design and analysis of shoulder type exoskeleton stretcher for individual soldier]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023
Mao Y   +5 more
europepmc   +1 more source

不同人工林在草原露天矿区排土场边坡的水土保持效益及其环境影响

open access: yesShuitu Baochi Xuebao, 2000
分析研究了3种不同人工灌木林地在草原露天矿区排土场边坡的水土保持效益和对周围环境的影响,结果表明:山杏和丁香两种人工林生长缓慢,很难在短时间形成郁闭灌丛,而沙棘可以迅速形成郁闭度很高的人工林,护坡和土壤培肥作用显著。露天矿区排土场的形成将会根本改变其周围地区的土壤环境和植被类型。如无有效措施,坡下汇水区土壤将发生盐碱化,植被向耐盐的水生和湿地植物群落演替 ...
doaj  

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