Research progress in problem-solving nickel-titanium rotary instrument in endodontics. [PDF]
Hua Xi Kou Qiang Yi Xue Za ZhiCui C, Quan J, Wei X.
europepmc +1 more source
不锈钢渣矿化固定CO2的实验研究 Experimental Study on CO2 Sequestration by Mineralization of Stainless Steel Slag
, 2018 M. Li +3 more
semanticscholar +1 more source
双相不锈钢S32001角钢悬臂构件弯扭屈曲性能及设计方法研究
Jianzhu Gangjiegou Jinzhan双相不锈钢S32001兼具优异强度与经济性，但目前针对其制成结构钢构件的相关研究较为匮乏。文中选取双相不锈钢S32001冷弯角钢悬臂构件的弯扭屈曲性能为研究对象。首先，依托轨道交通区间冷弯角钢设备支架，开展了冷弯角钢悬臂梁弯曲试验研究，试验关键参数包括截面尺寸与悬臂长度；随后，基于试验结果建立有限元模型，并开展了系统性的参数分析。结果表明：试件均出现了所设计的弯扭屈曲破坏；减小长细比与肢长比能够显著提高试件承载力。最终，对比美国规范AISC 360-16中厚实截面角钢悬臂试件承载力计算公式的预测结果 ...
叶守杰 +5 more
doaj
[Latest research progress of rare earth-magnesium alloys in orthopedics]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoSun Z, Zuo K, Zhu X, Yue H, Gao Z.
europepmc +1 more source
[Research progress on the manufacturing technology of hollow microneedles]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiZhou S +9 more
europepmc +1 more source
[Progress in electric field assisted molecular imprinting technology]. [PDF]
Se PuWu JY, Huang XJ.
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1 000 kV特高压GIL气室SO2超标异常原因分析及改进措施
Dianci bileiqi本研究对一起1 000 kV特高压气体绝缘金属封闭输电线路（GIL）气室SO2超标展开分析。提出现场加压辅助定位方法进行诊断，对异常部位增加X光检测，发现C相气室4垂直段插接触头有疑似脱出部件和疑似点状凸起。现场解体检查发现母触头触指、压环及不锈钢挡圈从正常位置脱出，触指与公触头熔合。提出返厂模拟挡圈拉力测试，发现拉力达到116.5 kN时，挡圈从母触头处脱出。得出母触头内不锈钢挡圈未安装到位，运行中逐渐脱出后，导致触指与母触头接触不良，长期运行电流作用下母触头与触指过热烧蚀引起SF6气体分解 ...
乔振朋 +6 more
doaj
[Structural design and evaluation of bone remodeling effect of fracture internal fixation implants with time-varying stiffness]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiSun H +5 more
europepmc +1 more source
[Analysis of phthalate esters from vegetable oils by gas chromatography-mass spectrometry coupled with headspace solid-phase microextraction using cyclodextrin-based hypercrosslinked polymer coated fiber]. [PDF]
Se PuZhang PC +5 more
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