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Transfusion medicine education in the United States:a review for International medical audiences
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作者 J.K.Karp h.shan 《中国输血杂志》 CAS CSCD 北大核心 2010年第10期836-839,共4页
Background US and international medical audiences not infrequently inquire about the US medical education system with regards to the training of transfusion medicine specialists.Methods Relevant websites were reviewed... Background US and international medical audiences not infrequently inquire about the US medical education system with regards to the training of transfusion medicine specialists.Methods Relevant websites were reviewed to summarize the current methods by which technologists or specialists in blood banking and physicians specializing in transfusion medicine are trained in the US.Results Specialized training in blood bank/transfusion medicine requires additional years of education and specific certifications.Medical technologists/medical laboratory specialists can pursue additional training to become technologists and/or specialists in blood banking.Similarly,physicians can pursue fellowship training in transfusion medicine.Conclusion The education of future specialists in transfusion medicine is particularly important for maintaining the field's tradition of growth and development.This is true at the level of the medical laboratory scientist and at the level of the physician. 展开更多
关键词 医学教育 医疗水平 输血 美国 国际 医学实验室 评论 教育体系
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沉积和离子散射对亚微米SiO_2刻蚀剖面控制的影响
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作者 h.shan 李祥 《微电子技术》 1995年第6期54-61,共8页
本文阐述了在亚微米接触孔,通孔及沟槽的SiO2刻蚀工艺中,沉积和离子散射对剖面的影响,对多层结构SiO2的刻蚀也进行了研究。我们观察到总的气体流量、局部沉积和温度都将对剖面产生很大影响,与其它有关大功率单片刻蚀系统的研究结果... 本文阐述了在亚微米接触孔,通孔及沟槽的SiO2刻蚀工艺中,沉积和离子散射对剖面的影响,对多层结构SiO2的刻蚀也进行了研究。我们观察到总的气体流量、局部沉积和温度都将对剖面产生很大影响,与其它有关大功率单片刻蚀系统的研究结果一致。另外,我们的实验结果还表明,CD一样时,3维(3D)的接触孔和通孔剖面比2维(2D)的沟槽要更陡些,且小尺寸比大尺寸的剖面更陡。对相同的纵横比,我们注意到2D的沟槽蚀速比3D通孔的更快。通过改变沉积速度,可使沟槽蚀速比大窗口快或慢,而通孔的蚀速总比大窗口的侵。根据我们的实验结果,认为亚微米SiO2刻蚀主要与立体角(solidangle)有关。 展开更多
关键词 沉积 离子散射 二氧化硅 刻蚀 多层互连工艺
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Experimental and numerical study on the bending performance of GFRP/Kraft honeycomb panel after natural aging
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作者 Z.Kong N.S.Kalutskiy +1 位作者 h.shan Z.Yang 《Aerospace Systems》 2024年第1期57-65,共9页
Three-point bending tests on glass-fiber reinforced polymer GFRP/Kraft honeycomb sandwich panels after natural aging were undertaken to explore the bending performance of composite honeycomb sandwich panels after long... Three-point bending tests on glass-fiber reinforced polymer GFRP/Kraft honeycomb sandwich panels after natural aging were undertaken to explore the bending performance of composite honeycomb sandwich panels after long-term aging.The specimens’failure modes and ultimate damage patterns were recorded,and the pertinent data from the tests were statistically analyzed.A finite element model was developed to investigate the process of fiber failure based on the Hashin failure criterion.The results showed that the bending performance increased significantly,with a small dispersion of the test data;the specimen failure forms were consistent with expectations;the failure mode and result of FEM are in general agreement with the tests. 展开更多
关键词 Honeycomb sandwich panels Natural aging Bending test Numerical simulation
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