Results 101 to 110 of about 30,500 (193)
Shuitu Baochi Xuebao[目的] 为明晰降雨能量和初始含水率对土壤团聚体溅蚀过程机制的影响。[方法] 选取东北典型耕层黑土为研究对象,通过人工模拟降雨试验,探讨不同初始含水率、降雨能量和团聚体初始粒径的团粒溅蚀特征。[结果] (1)4种初始粒径黑土团聚体的溅蚀量均在初始含水率4%时最大,其中初始粒径＜0.25 mm团聚体溅蚀量是相同降雨能量下各粒径团聚体溅蚀量的1.21~5.50倍。随初始含水率的增加各初始粒级团聚体溅蚀量呈减小趋势,而初始含水率＞25%后则呈增大现象。(2 ...
张转敏, 王彬, 饶伟, 王文刚
doaj
[Effect of porous surface structure on fatigue strength of 3D printed zirconia]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanZhao J +6 more
europepmc +1 more source
Shuitu Baochi Xuebao目的 明确冻结作用对沙丘土壤可蚀性及抗蚀性的影响，可加深黄河乌兰布和沙漠段冬季风沙入黄过程机理的认识，并为区域入黄沙量建模与估算提供重要科学依据。方法 通过流动沙丘迎风坡表层干沙、湿沙及冻结土层的沙粒粒径筛分试验和不同水分冻结前后的土壤进行抗剪强度测试，研究沙丘土壤冻结后抗风蚀能力。结果 沙丘不同坡位沙粒在水分的黏结作用下粒径增加，粒径峰值由0.15~0.2 mm向0.3~0.355 mm集中，约35.12%细砂颗粒黏结在一起形成较大的中砂颗粒。冻结后出现极细砂，粒径峰值为0.5~0.6 mm ...
李锦荣 +4 more
doaj
[Synthesis of a temperature-responsive multimodal motion microrobot capable of precise navigation for targeted controllable drug release]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhao X +5 more
europepmc +1 more source
[Polydopamine-modified phycocyanin nanoparticles with photothermal antimicrobial activity promote skin wound healing in mice]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoZhang C +8 more
europepmc +1 more source
[Advances in inhalable nano-formulations]. [PDF]
Zhejiang Da Xue Xue Bao Yi Xue BanLuo Y, Yue X, Zhao Z, Zhang X.
europepmc +1 more source
結晶粒径の異なる1100アルミニウムにおけるIn-situ X線回折法を用いた引張変形中の転位密度測定
, 2014 大樹 足立 +3 more
semanticscholar +1 more source
[Progress in metabolomics of multiple myeloma]. [PDF]
Zhonghua Xue Ye Xue Za ZhiYe X, Sun ZX, Qu XY, Fan L.
europepmc +1 more source