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Engineering Design of High Quality GaN Epitaxy on Silicon Substrate Using Varying GaN/AlGaN Composite Buffer Structures

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稀有金属材料与工程 2012年第S1期41卷 57-60页

作者： Wu, G. M. Tu, K. N. Kuo, C. C. Univ Calif los angeles Dept Mat Sci & Engn Los Angeles CA 90095 USA Chang Gung Univ Inst Electroopt Engn Tao Yuan 333 Taiwan

High quality GaN epitaxy thin films have been desired for the energy-efficient,solid-state semiconductor illuminating *** substrates offer high crystal quality,low wafer cost,large wafer size,and potential integration with the well-established silicon processing ***,due to the large mismatch in lattice constants and thermal expansion coefficients,it is still challenging to grow high quality GaN on silicon *** this study,high quality GaN epitaxy has been engineering designed to grow on Si(111)substrate using varying GaN/AlGaN composite buffer structures by an Axitron 200 metal-organic vapor phase epitaxy deposition system.A thin AlN seed layer of 25 nm was firstly grown at 720℃.AlGaN layer of different thickness was then grown at 1050℃with subsequent GaN thin film until the total thickness reached 500 *** thickness of the subsequent GaN thin film could be increased by reducing the AlGaN thickness in the composite buffer *** results have shown that the lower GaN/AlGaN thickness ratio would decrease the dislocation density and provide crack-free,mirror-like upper GaN crystal thin *** the other hand,the GaN/AlGaN thickness ratio could be designed to be 2-6 to balance the processing cost and the thin film quality for engineering *** dislocation density has been about 2×10 9 *** addition,dislocation close loop was observed near the GaN/AlGaN *** annihilation mechanism could be depicted by the reduction in dislocation strain energy.

关键词： gallium nitride dislocation density silicon substrate buffer layer

Preliminary study on climatic signals of stable isotopes from Holocene speleothems under monsoon condition

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Chinese Science Bulletin 1998年第6期43卷 506-509页

作者： Ming Tan Dongsheng Liu Hua Zhong Xiaoguang Qin Hongchun Li Shusen Zhao Tieying Li Jinbo Lu Xiangyang Lu Chinese Acad Sci Inst Geol Beijing 100029 Peoples R China Univ So Calif Dept Earth Sci Los Angeles CA USA inst Geol Survey Beijing Beijing 102206 Peoples R China Peking Univ Tech & Phys Dept Beijing 100871 Peoples R China

Within the East Asian monsoon zone the change in oxygen isotope of Holocene stalagmite is mainly related to monsoon rain rather than to temperature. And carbon isotope can be taken as a comprehensive signal which contains the natural information and the information of anthropogenic activity. Isotopic analysis is also compared with the annual layer records.

关键词： speleothem stable isotopes monsoon.

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Author Spotlight

CCS Chemistry 2021年第2期3卷 303-305页

作者： Yang, Ying-Wei Hong, Ran Chen, Long Arizona State Univ Tempe AZ 85287 USA Univ Calif los angeles Los Angeles CA 90024 USA Univ Calif Irvine Irvine CA 92717 USA Jilin Univ Coll Chem Changchun Jilin Peoples R China Max Planck inst Polymer res MPIP Mainz Germany Tianjin Univ Tianjin Peoples R China

Ying-Wei Yang(杨英威)***-Wei Yang graduated from the Department of Chemistry at Nankai University with a *** *** received his *** Physical Chemistry from Nankai University in 2005 under the direction of *** *** 2005 to 2010,he worked as a postdoctoral fellow at Arizona State University(with Professor John Chaput),University of California.

关键词： doctor Arizona California

Signaling pathways for germ cell death in adult cynomolgus monkeys（Macaca fascicularis） induced by mild testicular hyperthermia and exol enous testosterone treatment

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南京医科大学学报（自然科学版） 2007年第10期27卷 1142-1142页

作者： Jia, Y. Hikim, A.P.S. Lue,Y.H. Swerdloff, R.S. Vera,Y. Zhang,X. S. Hu, Z. Y. Li, Y. C. Liu, Y. X. Wang, C Univ Calif los angeles Med Ctr David Geffen Sch Med Div Endocrinol Torrance CA 90509 USA. Univ Calif los angeles Med Ctr David Geffen Sch Med Dept Med Torrance CA 90509 USA. los angeles biomed res inst Torrance CA 90509 USA. Chinese Acad Sci Inst Zool State Key Lab Reprod Biol Beijing 100080 Peoples R China. Nanjing Med Univ Affiliated Hosp 1 Dept Endocrinol Nanjing 210029 Peoples R China

Variant alleles of TGFB1 and TGFBR2 are associated with a decreased risk of gastric cancer in a Chinese population

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南京医科大学学报（自然科学版） 2007年第5期27卷 456-456页

作者： Jin, G. F. Wang, L. N. Chen, W. S. Hu, Z. B. Zhou, Y. Tan, Y. F. Wang, J. M. Hua, Z. L. Ding, W. L. Shen, J. Zhang, Z. F. Wang, X. R. Xul, Y. C. Shen, H. B. Nanjing Med Univ Sch Publ Hlth Dept Epidemiol ＆ Biostat Canc Res Ctr Nanjing 210029 Peoples R China Nanjing Med Univ Sch Publ Hlth Toxicol Lab Nanjing Peoples R China Yixing Peoples Hosp Yixing Jiangsu Peoples R China Yangzhong Canc inst Yangzhong Jiangsu Peoples R China Univ Calif los angeles Sch Publ Hlth Dept Epidemiol Los Angeles CA 90024 USA

Nat Genet:科学家发现相同肿瘤中存在不同遗传复杂性的癌细胞

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现代生物医学进展 2017年第3期17卷 I0004-I0004页

作者： Hao, Jia-Jie Lin, De-Chen Dinh, Huy Q. Mayakonda, Anand Jiang, Yan-Yi Chang, Chen Jiang, Ye Lu, Chen-Chen Shi, Zhi-Zhou Xu, Xin Zhang, Yu Cai, Yan Wang, Jin-Wu Zhan, Qi-Min Wei, Wen-Qiang Berrnan, Benjamin P. Wang, Ming-Rong Koeffler, H. Phillip Chinese Acad Med Sci Natl Canc Ctr Canc Hosp State Key Lab Mol Oncol Beijing Peoples R China Peking Union Med Coll Beijing Peoples R China Univ Calif los angeles Cedars Sinai Med Ctr Sch Med Div Hematol Oncol Los Angeles CA 90048 USA Sun Yat Sen Univ Sun Yat Sen Mem Hosp Med Res Ctr Guangdong Prov Key Lab Malignant Tumor Epigenet & Guangzhou Guangdong Peoples R China Cedars Sinai Med Ctr Biomed Sci Ctr Bioinformat & Funct Genom Los Angeles CA 90048 USA Natl Univ Singapore Canc Sci Inst Singapore Singapore Singapore Kunming Univ Sci & Technol Fac Med Kunming Peoples R China Linzhou Canc Hosp Dept Pathol Linzhou Henan Peoples R China Chinese Acad Med Sci Natl Canc Ctr Canc Hosp Dept Canc Epidemiol Beijing Peoples R China Natl Univ Singapore Inst Canc Natl Univ Singapore Hosp Singapore Singapore

近日，一项刊登于国际杂志Namre Genetics上的研究报告中。来自美国洛杉矶希达-西奈（Cedars-Sinai）医学院的研究人员通过研究在食管肿瘤的组织样本中鉴别出了2000多个基因突变，从而详细阐述了癌症的复杂性。本文研究表明。单一肿瘤... 详细信息

近日，一项刊登于国际杂志Namre Genetics上的研究报告中。来自美国洛杉矶希达-西奈（Cedars-Sinai）医学院的研究人员通过研究在食管肿瘤的组织样本中鉴别出了2000多个基因突变，从而详细阐述了癌症的复杂性。本文研究表明。单一肿瘤的不同区域或许具有多种遗传模式。

关键词：食管肿瘤遗传模式复杂性 Nat 癌细胞科学家基因突变研究人员

Celebrating the 95th birthday of Professor Karl *** Part 1-Biography and tributes

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Computer Modeling in Engineering & Sciences 2021年第12期 1077-1122页

作者： Sheila Humphreys Univ Maryland Dept Civil & Environm Engn College Pk MD 20742 USA Peter ODonnell Jr Chair Computat & Appl Math Austin TX USA Aerosp Engn & Engn Mech Austin TX USA Univ Pacific Stockton CA 95211 USA Univ Maryland Glenn L Martin Prof Aerosp Engn College Pk MD 20742 USA Dev Engn Grad Grp Educ Blum Ctr Developing Econ MEng Program Chair Roscoe & Elizabeth Hughes Prof Mech Engn Product Berkeley CA USA Univ Texas Austin Oden Inst Computat Engn & Sci Cockrell Family Regents Chair Engn Austin TX 78712 USA Univ Texas Austin Aerosp Engn & Engn Mech Austin TX 78712 USA Univ Texas Austin Math Austin TX 78712 USA Univ Texas Austin Comp Sci Austin TX 78712 USA Univ Calif Berkeley Berkeley CA USA UC Santa Cruz Santa Cruz CA USA Univ Colorado Engn & Appl Sci Emeritus Lab Atmospher & Space Phys Boulder CO 80309 USA Ramon Llull Univ ESADE Business Sch Barcelona Spain Univ Stuttgart Inst Baustat & Baudynam Inst Struct Mech Stuttgart Germany Cooper Union Adv Sci & Art Strateg Initiat & Inst Effectiveness New York NY 10003 USA Univ Colorado Dept Aerosp Engn Sci Boulder CO 80309 USA Univ Colorado Aerosp Mech Res Ctr Boulder CO 80309 USA Software Engn Apple Inc Los Angeles CA USA Stanford Univ Mech Engn Stanford CA 94305 USA

Celebrating the 95th birthday of Professor Karl *** In Part 1,a biography of Professor Karl Pister is followed by seventeen individual tributes,penned by a diverse group from university presidents to an elementary school teacher,with the longest tribute by *** Humphreys focusing on Professor Pister’s endeavor to increase the enrollment of minorities in engineering.

关键词： engineering. birthday ster

CD4(＋)CD25(＋) treg induction by an HSP60-derived peptide SJMHE1 from schistosoma japonicum is TLR2 dependent

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南京医科大学学报（自然科学版） 2010年第1期30卷 138-138页

作者： Wang, Xuefeng Zhou, Sha Chi, Ying Wen, Xiaoyun Hoellwarth, Jason He, Lei Liu, Feng Wu, Calvin Dhesi, Shawn Zhao, Jiaqing Hu, Wei Su, Chuan Nanjing Med Univ Jiangsu Key Lab Pathogen Biol Dept Pharmacol Dept Pathogen Biol & Immunol Nanjing 210029 Jiangsu Peoples R China. Univ So Calif Keck Sch Med Dept Educ Affairs Los Angeles CA 90033 USA. Chinese Ctr Dis Control & Prevent Natl Inst Parasit Dis Shanghai Peoples R China.

Chronic schistosome infection results in the suppression of host immune responses, allowing long-term schistosome survival and restricting *** theories suggest that Treg play an important role in this ***, the mechanism of Treg induction during schistosome infection is still *** aim of this study was to determine the mechanism behind the induction of CD4(+)CD25(+) T cells by Schistosoma japonicum HSP60(SjHSP60)-derived peptide SJMHE1 as well as to elucidate the cellular and molecular basis for the induction of CD4(+)CD25(+) T cells during *** *** immunized with SJMHE1 or spleen and LN cells from naive mice *** SJMHE1 in vitro all displayed an increase in CD4(+)CD25(+) T-cell *** of IL-10 and TGF-beta by SJMHE1 stimulation may contribute to *** transferred SJMHE1induced CD4(+)CD25(+) T cells inhibited delayed-type hypersensitivity in BALB / c ***, SJMHE1-treated APC were tolerogenic and induced CD4(+) cells to differentiate into suppressive CD4(+)CD25(+) ***, our data support a role for TLR2 in SJMHE1-mediated CD4(+)CD25(+) Treg *** findings provide the basis for a more complete understanding of the ***-host interactions that contribute to host homeostatic mechanisms, preventing an excessive immune response.

关键词：血吸虫病治疗方法临床分析细胞

Bilateral endogenous endophthalmitis secondary to group B streptococcal sepsis

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Chinese Medical Journal 2014年第10期127卷 1999-1999页

作者： Wu Ziqiang Huang Jingjing Huynh, Scott Sadda, Srinivas Ctr Adv Eye Care Carson City NV USA Sun Yat Sen Univ Zhongshan Ophthalm Ctr State Key Lab Ophthalmol Guangzhou 510060 Guangdong Peoples R China Univ Nevada Reno NV 89557 USA Doheny Eye inst Doheny Image Reading Ctr Los Angeles CA 90033 USA

To the editor： Endogenous bacterial endophthalmitis accounts for a small minority （2%-6%） of cases of endophthalmitis, but the visual outcome is almost always poor.＇ Group B streptococcus （GBS） accounts for only 5.2% among 267 endogenous endophthalmitis cases,1 and only about 30 cases have been reported in literature. We describe a rare case of bilateral GBS endogenous endophthalmitis and suggest that GBS should be a leading suspect in bilateral endogenous endophthalmitis.

关键词： Bilateral secondary streptococcal sepsis