抗冲性 - Open Access .click

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, 2016
本文研究了激光冲击强化对ZK60镁合金力学和摩擦磨损性能的影响,使用Nd:YAG脉冲激光器处理ZK60镁合金,分析了激光能量密度、单双面冲击和有无保护层等激光冲击强化工艺参数对ZK60镁合金力学性能的影响;同时测试了激光冲击强化处理前后ZK60镁合金耐磨性能的变化。实验结果表明:激光冲击强化可以提高ZK60镁合金的力学性能,高激光能量密度优于低能量密度的强化效果;单双面处理效果没有明显差别;没有保护层时激光冲击强化也可以提高材料的拉伸性能,但是激光会在镁合金表面产生蜂窝状烧蚀现象 ...
王浩 +4 more
core

[Rapid response to linperlisib in relapsed/refractory autoimmune hemolytic anemia: a case report]. [PDF]

Zhonghua Xue Ye Xue Za Zhi
Liu ZW, Chen M.
europepmc +1 more source

一种自冲洗抗堵塞滴灌灌水器

, 2004
本实用新型公开了一种具有自冲洗功能的抗堵塞滴灌灌水器，包括一普通纽扣式灌水器外壳，灌水器外壳的两端分别有一进水口和出水口，进水口的端口上设置有一过滤网，壳体内的进水口和出水口的通道上，设置有一具有弹性的橡胶内芯，橡胶内芯呈“+”字形状，上下部均为圆柱形，橡胶内芯的中间为片形，灌水器出水口的内侧带有多个梯形流道。其工作过程是当滴灌系统刚启动或关闭后，水流对内芯上的橡胶止水柱产生一定的压力，当压力较小时，内芯变形量不大，所以出水口开度较大，有利于将较大颗粒的堵塞物或杂质冲出 ...
范兴科,吴普特,冯浩,牛文全,杜敏,朱献文
core

[Methyltransferase-like protein 7B promotes glycolysis and malignant progression in papillary thyroid carcinoma cells via the USP28/HIF-1α axis]. [PDF]

Zhejiang Da Xue Xue Bao Yi Xue Ban
Xu F, Xie Q.
europepmc +1 more source

Soil anti-scouribility and its related physical properties on abandoned

, 2013
为了评价农地撂荒对土壤抗侵蚀性的影响,该文以黄土丘陵区自然撂荒地为研究对象,应用时空互代法,通过原状土冲刷试验对不同撂荒阶段(0～43a)的坡地土壤抗冲性进行了研究。结果表明:与对照(阶段Ⅰ)相比,随着撂荒年限的增加,表层(0～15cm)和中层(>15～30cm)土壤容重显著降低,而下层(>30～50cm)土壤容重变化较小(约下降0.5%)。土壤团聚体和抗剪强度(黏聚力C和内摩察角φ)在3个土层中均呈显著增加趋势,而土壤崩解速率在3个土层中均呈下降趋势,与表层相比 ...
李强, 许明祥, 刘国彬, 张正, 孙会 +4 more
core

[Menstrual blood-derived mesenchymal stem cell transplantation improves anti-fibrosis mechanisms in mouse models of alcoholic liver fibrosis]. [PDF]

Zhonghua Gan Zang Bing Za Zhi
Yang C +7 more
europepmc +1 more source

[Effects of glutathione on acute cutaneous photodamage in mice and its mechanism]. [PDF]

Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi
Wang Q, Zhou L, Deng Y, Qiu ZJ, Wu X, Zhao C. +5 more
europepmc +1 more source

[Expression of Rho-related BTB domain-containing protein 1 in tongue squamous cell carcinoma and its effect on cell proliferation, invasion, and migration]. [PDF]

Hua Xi Kou Qiang Yi Xue Za Zhi
Shao Y +6 more
europepmc +1 more source

[Prognostic analysis of anticoagulation therapy in elderly patients with cardioembolic stroke]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Meng Q +15 more
europepmc +1 more source

[Gout of the manubriosternal joints: A case report]. [PDF]

Beijing Da Xue Xue Bao Yi Xue Ban
Gan D, Fu Q, Tang X, Li C, Shu Z.
europepmc +1 more source

土壤抗冲性
火花效应
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