Results 111 to 120 of about 107,589 (196)
本工作进行了板状焊接钢接头在空气中的常幅疲劳试验;和在海水中的常幅腐蚀疲劳试验(加载频率为0.2Hz,应力比 R=-1,海水温度~20℃,阴极保护负电位~850mV,SCE)。将两者试验结果比较,初步表明,钢接头海水腐蚀疲劳的平均寿命约为空气中的1/2到1/3。本工作还进行了焊缝经过 TIG 熔修的试件的试验,初步结果表明,TIG 熔修处理明显地增加了焊接接头的海水腐蚀疲劳(有阴极保护 ...
薛以年, 徐纪林, 李禾, 李延苹
core
[Impact of tibial tunnel position in artificial posterior cruciate ligament reconstruction on postoperative knee function and stability]. [PDF]
Zhao Y, Wang C.
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[Effect of TVT-Abbrevo in the treatment of female stress urinary incontinence]. [PDF]
Guo R +8 more
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[Expert consensus on clinical randomized controlled trial design and evaluation methods for bone grafting or substitute materials in alveolar bone defects]. [PDF]
Liao X +19 more
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[The guideline for the diagnosis and treatment of marginal zone lymphoma in China (2025)]. [PDF]
Hematological Oncology Committee of China Anti-Cancer Association +5 more
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本发明公开一种基于材料试验机加载技术的准静态约束切削实验装置,其包括切削支座、切削滑轨、切削刀具和切削试样约束件,切削支座的中心开设有切削作业空间,切削滑轨可滑动地安装在切削支座的纵向安装孔内,其一端伸入切削作业空间内,且在该端安装切削试样,另一端置于切削支座外,以传递材料试验机的加载力,切削刀具安装在切削支座的横向安装孔内,其刀头置于切削试样前端的切削路径上,切削试样约束件紧贴切削试样前部的侧面。本发明结构简单,操作方便,能通过一次切削就使材料产生严重塑性变形,且塑性变形程度可控 ...
汪海英 +4 more
core
一种绝缘体上硅的波导光栅耦合器,所述耦合器采用绝缘体上硅材料,包括:一衬底;一限制层,该限制层制作在衬底上;一波导层,该波导层制作在限制层上,该波导层上面的一端横向制作有衍射光栅;一光子器件 ...
俞育德, 李智勇, 周亮, 余金中
core
[Determination of vitamin A and vitamin E in human tear by liquid chromatography-tandem mass spectrometry and analysis of their relationship with dry eye]. [PDF]
Luo BB, Jiao JR, Bai J, Liu XY.
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