Results 61 to 70 of about 5,544 (107)

[Research progress on elbow joint rehabilitation robots]. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban
Li M, Xu F, Wang D, Xu J.
europepmc   +1 more source

冻融时期库布齐沙柳人工林土壤呼吸对降雪的响应

open access: yesShuitu Baochi Xuebao
[目的] 探究干旱半干旱地区春季冻融时期沙漠生态系统的土壤呼吸变化规律及其与环境因子的关系,为干旱半干旱地区沙地生态系统的碳收支提供数据支撑。[方法] 在内蒙古鄂尔多斯市达拉特旗沙柳林木种质资源库,以沙柳为研究对象,采用Li-6800土壤碳水通量测量室测定在无雪处理下,未整地未平茬(ww)、未整地平茬(wp)、整地未平茬(zw)、整地平茬(zp)的土壤呼吸速率,并同步测定大气温度和土壤温湿度。[结果] 冻融交替时期土壤呼吸的日变化规律呈单峰变化趋势,峰值出现在10:00—12:00 ...
王继璇   +8 more
doaj  

[<i>Poria cocos</i> polysaccharide alleviates cyclophosphamide-induced intestinal barrier dysfunction and inflammation in mice by modulating gut flora]. [PDF]

open access: yesNan Fang Yi Ke Da Xue Xue Bao
Zhang Y   +10 more
europepmc   +1 more source

基于生态水文最优性理论的坝上高原-乌兰察布地区植被承载力模拟

open access: yesShuitu Baochi Xuebao
目的以坝上高原与乌兰察布地区为研究区域,基于Eagleson生态水文模型,模拟在多年平均气候条件下的最优植被覆盖度,揭示气候水分约束下的植被承载力格局。方法利用2000—2020年MODIS NDVI数据和NOAA逐日气象数据,提取生长季实际植被覆盖度及降水过程参数,并结合中国高分辨率土壤水文数据集开展模型模拟与拟合验证。结果最优植被覆盖度整体呈由西向东逐渐升高的趋势,与多年平均实际覆盖度空间格局基本一致,相关系数为0.747,均方根误差为0.118 9,表明模型适用于本区域。分区分析显示 ...
林佳雯, 贾国栋, 余新晓
doaj  

[Application of infrared thermography in breast reconstruction and plastic surgery and limb reconstruction]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Jian H   +26 more
europepmc   +1 more source

[Neutrophil-derived Microvesicles Regulate DNA Methylation of the <i>LINE1</i> Gene in Human Fibroblast-like Synoviocytes]. [PDF]

open access: yesSichuan Da Xue Xue Bao Yi Xue Ban
Zhao Z   +8 more
europepmc   +1 more source

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