, 2007 在亚微米/纳米尺度,材料强度按照Hall-Petch关系随晶粒尺度的减小而增加,然而却伴随拉伸延性的降低,变形参数、如变形温度和应变速率等显著影响延性。本文用等通道弯曲变形(ECAP)的方法制备超细晶铜材料。对其进行(准)静态压缩和动态冲击压缩(SplitHopkinsonPressureBar)实验,得出应变速率在10~(-4)～10~4s~(-1)范围的应力/应变响应。同时利用光学显微镜 ...
韩宇
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[Bottlenecks and breakthroughs in gastric cancer diagnosis and treatment: Towards a new era of precision and intelligent integration]. [PDF]
Beijing Da Xue Xue Bao Yi Xue BanJi J, Wei J, Ji K, Bu Z.
europepmc +1 more source
, 2002 纤维素酶压力脉动固态发酵周期（60h）比传统固态发酵周期缩短1/3，酶活（2036IU/g）比传统酶活（10.82IU/g）提高了一倍。利用环境扫描电镜观察压力脉动固态发酵与传统固态发酵微观动态过程表明，压力脉动固态培养的料层（9.0cm厚）上中下微生物生长状况均匀一致，且疏松；而传统固态发酵的料层中部几乎没有菌体生长。并且发现微生物产孢初期，其产酶即停止，压力脉动固态发酵在72h开始产生孢子，其产酶达到最高峰 ...
陈洪章
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[Protective effect and mechanism of TSPAN9-mediated mitocytosis in interleukin-1β-induced rat chondrocyte senescence]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiChen Q, Da W, Luo N, Shen B.
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Study on single CNT's accurate assembly and electrical contact for fabricating nanoelectronic device
, 2006 目前,利用单根碳纳米管进行纳电子器件的研制成为纳电子学界研究的前沿与热点,但在纳电子器件研制过程中,如何实现单根碳纳米管与微电极的精确装配与电连接成为关键技术难题之一。为探索实现此关键技术的新方法,本文尝试将介电电泳与具有实时力/视觉反馈的原子力显微镜操作方法相结合,从而结合粗、精两级操作方式,来实现单根碳纳米管的精确装配与电连接。单根多壁碳纳米管的精确装配与电特性测试实验验证了该方法的有效性,从而为装配研制基于单根纳米管/线的纳电子器件提供了一种新颖可行的方法。
王越超 +5 more
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[Screening of High-quality Spermatozoa Using Transwell Membrane Pores and Assessment of Their Performance]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi Y +7 more
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[Hollow copper sulfide nanocomposites combined with photothermal and photodynamic therapy inhibits malignant behaviors of esophageal cancer cells]. [PDF]
Nan Fang Yi Ke Da Xue Xue BaoYang P +8 more
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[Advances in the Application of Artificial Intelligence in Clinical Microbiological Testing]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanLi H, Song Z, Zhao Y, Li M.
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[Mesothelial impairment induced by peritoneal dialysis and its potential protective strategies]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiBan Y, Mei Y, Chen B, Tang W, Kang H.
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[Influence and mechanism of exosomes derived from rat bone marrow mesenchymal stem cells on rat Fbs under high glucose conditions]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiWu Y, Yin WH, Yu M, Wang D, Wu J.
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