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RIPRAP STABILITY ON STEEP SLOPES

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International Journal of Sediment Research 1998年第2期 44-53页

作者： howard h.chang 1

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ＲＩＰＲＡＰＳＴＡＢＩＬＩＴＹＯＮＳＴＥＥＰＳＬＯＰＥＳＨｏｗａｒｄＨ．ＣＨＡＮＧ１ＡＢＳＴＲＡＣＴＳｔｅｅｐｃｈａｎｎｅｌｓｌｏｐｅｓａｒｅｏｆｔｅｎｌｉｎｅｄｗｉｔｈｒｉｐｒａｐａｓａｐｒｏｔｅｃｔｉｏｎａｇａｉｎｓｔｐｏｔｅｎｔｉａｌｅｒｏｓｉ...

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跨越太平洋的“宿缘”——张少书先生访谈录

文化发展论丛 2018年第2期 26-36页

作者：张少书邹浩斯坦福大学东亚研究中心

时间:2017年12月6日地点:斯坦福大学历史系张少书办公室邹浩:张教授,谢谢您抽出宝贵的时间接受我代表《文化发展论丛》对您的采访。《文化发展论丛》是由社会科学文献出版社出版的一本专注于文化研究的中国学术集刊。集刊的编辑同人很... 详细信息

时间:2017年12月6日地点:斯坦福大学历史系张少书办公室邹浩:张教授,谢谢您抽出宝贵的时间接受我代表《文化发展论丛》对您的采访。《文化发展论丛》是由社会科学文献出版社出版的一本专注于文化研究的中国学术集刊。集刊的编辑同人很兴奋有这样一个机会能将您和您的学术研究介绍给中国读者。您的教学和研究集中在中美关系史和亚裔美国人政治与文化的历史方面。

关键词：访谈录太平洋文化发展学术研究科学文献出版社办公室美国人

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Plasticity Enhancement Processes in NiAl and MoSi_2

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Journal of Materials Science & Technology 1993年第6期9卷 405-415页

作者： R.Gibala h.chang C.M.Czarnik K.M.Edwards A.Misra Department of Materials Science and Engineering,University of Michigan,Ann Arbor,Michigan 48109-2136,USA

This paper demonstrates that plasticity enhancement processes previously observed in bcc metals and associated with the presence of surface films and precipitates or dispersoids are operative in or- dered intermetallic compounds.' Some specific results are given for NiAl-and MoSi_2-based *** plasticity of NiAl and related B2 ordered alloys at room temperature during monotonic deformation can be enhanced by application of surface films such as electroless nickel ***- nificant effects are also observed during cyclic *** presence of ductile second phases such as fcc γ or the ordered phase γ' introduced by alloying also enhances the plasticity of NiAl. MoSi_2 exhibits similar effects of surface films and second phases,but primarily at elevated tempera- tures,T>900℃.In this paper,we illustrate the effects of ZrO_2 surface films deposited near room temperature and TiC particulate additions introduced by powder processing *** all cases, the plasticity enhancement is associated with enhanced dislocation generation processes under the conditions of constrained deformation at the film-substrate or precipitate/dispersoid-matrix inter- face of the composite system.

关键词： plasticity ordered intermetallics NiAl MoSi_2

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Outcomes in refractory diffuse large B-cell lymphoma:results fromamulticenter real-world study in China

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Cancer Communications 2021年第3期41卷 229-239页

作者： Shuo Wang Li Wang Jianda hu Wenbin Qian Xi Zhang Yu hu Qi Zhu Bobin Chen Depei Wu Chung-Chou h.chang Pengpeng Xu Xiaoyun Zheng Juying Wei Yao Liu Guohui Cui Yong Tang Yan Ma haiwen huang hongmei Yi Weili Zhao Shanghai Institute of hematology State Key Laboratory of Medical GenomicsNational Research Center for Translational Medicine at ShanghaiRui Jin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200025P.R.China Chinese-French Research Center in Living Science and Genomics Laboratory of Molecular PathologyShanghai 200025P.R.China Fujian Institute of hematology Fujian Medical University Union HospitalFuzhouFujian 350001P.R.China The First Affiliated hospital of Medical School of Zhejiang University HangzhouZhejiang 310003P.R.China Department of hematology Xinqiao HospitalArmy Medical UniversityChongqing 400037P.R.China Union hospital Tongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022P.R.China Shanghai Ninth People’s hospital Shanghai 200011P.R.China huashan hospital Affiliated with Fudan University Shanghai 200040P.R.China Jiangsu Institute of hematology Institute of Blood and Marrow Transplantationthe First Affiliated Hospital of Soochow UniversitySuzhouJiangsu 215006P.R.China Department of Biostatistics Graduate School of Public HealthUniversity of PittsburghPittsburghPennsylvania 15213United States of America Department of Pathology Rui Jin Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200025P.R.China

Background:Diffuse large B-cell lymphoma(DLBCL)patients refractory to rituximab-based immunochemotherapy have a dismal ***,the definition of refractory DLBCL remains inconsistent and no large cohort study data is available from Asian *** validate the definition and outcomes of refractory DLBCL in China,we conducted a multicenter,retrospective cohort ***:The REtrospective AnaLysis of Treatment REspoNse of refractory DLBCL(REAL-TREND)study was performed using real-world data from 8 centers in *** patients with curative intent were included in the REAL-TREND *** survival(OS)was estimated using the Kaplan-Meier method and compared by the log-rank *** to heterogeneity in response rates among different centers,the response rates of refractory patients were pooled using random-effect *** survival analysis was performed using the Cox regression ***:A total of 2778 DLBCL patients diagnosed between January,2010 and December,2015 were enrolled to this *** validating previous definitions,the SChOLAR-1 study was most suitable to define refractory *** estimated 5-year cumulative incidence of refractory patients was 20%(95% confidence Interval[CI]=18%-22%).After the determination of refractory disease,overall response rate and complete remission rate were 30%(95%CI=22%-38%)and 9%(95%CI=4%-15%),*** with either no response to immunochemotherapy or relapse within 12 months after stem-cell transplantation had inferior survival with a median OS of 5.9 months(95%CI=5.5-7.1 months)and 2-year OS rate of 16%(95%CI=12%-20%).International prognostic index score 4-5(hazard ratio[hR]=2.22;95%CI=1.47-3.35),central nervous systemrelapse(hR=1.43;95%CI=1.04-1.97),and best response status(hR=2.68;95%CI=1.42-5.03 for partial ***=5.97,95%CI=3.21-11.11 for stable disease/progressive disease)were independent unfavorable prognostic ***:This is the first large-scale

关键词： diffuse large B-cell lymphoma multicenter cohort study refractory relapse rituximab immunochemotherapy treatment response prognosis

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磁存貯器的设计概要

电子计算机参考资料 1966年第6期 25-29页

作者： h.chang 宋安民

目前磁存贮器的工作方式和采用的磁元件材料不尽相同,形式多样。本文阐述了各种磁元件、电路和磁芯体中传输线工作时的主要物理现象。给出了为设计存贮器的几个基本公式,并确定了其最终极限,还指出了存贮器在未来的改进方法。

关键词：方程式方程乘积几何形状分布电容横向电磁波铁氧体毫微秒放大器电子设备条状存贮器存储器脉冲宽度脉冲特性

作为巷道检测手段的层析成象反演:三维物理模型模拟的可行性研究

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作为巷道检测手段的层析成象反演:三维物理模型模拟的可行性研究

Mixed Phospholipid/Plasma Protein Layer Behavior at Air/Liquid Interfaces under Cyclic-Area Conditions

美国勘探地球物理学家学会第61届年会

作者： A.h.Balch h.chang 于锋玉 Colorado School of Mines Colorado School of Mines

巷道检测问题最近引起了从事废弃矿道检测和“复杂”巷道网识别方面的有关人员的关注。该项研究使用了一个三维弹性物理模型,在其上采集了15000个地震记录并据此得到几组实际比例模拟井间地震资料。这些资料均用于探讨用弯曲射线路径层...

巷道检测问题最近引起了从事废弃矿道检测和“复杂”巷道网识别方面的有关人员的关注。该项研究使用了一个三维弹性物理模型,在其上采集了15000个地震记录并据此得到几组实际比例模拟井间地震资料。这些资料均用于探讨用弯曲射线路径层析成象旅行时和振幅反演来检测巷道的可能性。物理模型是根据所掌握的真实野外资料而精心设计的,因此物理模拟结果可按比例放大来反映实际的野外问题。通过层析旅行时反演得到了高质量的巷道图象。但是,要求具有较小的井间间隔和较小的时间和空间采样以便能够检测到由地道引起的微小旅行时延迟（在有噪声的情况下）。由于旅行时反演对时间拾取误差很敏感,故精确地拾取初至时间亦很必要。层析振幅反演结果的分辨率低的原因是振幅响应的分辨率低,震源和接收器的耦合甚不一致以及对震源-接收器的方向特性了解甚少。不过,在做旅行时反演的同时兼做振幅反演所增加的费用是微不足道的,因此,我们可以把振幅反演结果作为旅行时反演结果的一种附助解释手段。按比例放大的物理模拟层析成象结果表明, 当介质的P波平均速度为12800英尺／秒,井间距为109英尺,炮点距和检波点距为1．65英尺的条件下直径为6．6英尺的巷道能够得以清楚地成象。

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Mixed Phospholipid/Plasma Protein Layer Behavior at Air/Liqu...

Urban Air Pollution May Enhance COVID-19 Case-Fatality and Mortality Rates in the United States

中国化学会第十三届胶体与界面化学会议

作者： C.-L.Yin,Dorcas,C.-h.chang~* Department of Chemical Engineering,National Cheng Kung University, Tainan 701,Taiwan

＜正＞Mixed dipalmitoyl phosphatidylcholine（DPPC）/plasma protein layer behavior at continuously compressed-expanded air/liquid interfaces was analyzed in situ by Brewster angle microscopy（BAM）and infrared reflection-absorption spectroscopy（IRRAS）.For mixed layers of DPPC with plasma proteins at interfaces,the soluble plasma protein molecules were expelled from interfaces upon the interface compression stage apparently due to the presence of insoluble DPPC ***,the

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The Innovation 2020年第3期1卷 114-122页

作者： Donghai Liang Liuhua Shi Jingxuan Zhao Pengfei Liu Jeremy A.Sarnat Song Gao Joel Schwartz Yang Liu Stefanie T.Ebelt Noah Scovronick howard h.chang Gangarosa Department of Environmental health Rollins School of Public HealthEmory University1518 Clifton Road NEAtlantaGA 30322USA Surveillance and health Services Research Program American Cancer SocietyAtlantaGAUSA School of Earth and Atmospheric Sciences Georgia Institute of TechnologyAtlantaGAUSA GeoDS Lab Department of GeographyUniversity of Wisconsin-MadisonMadisonWIUSA Department of Environmental health Harvard T.H.Chan School of Public HealthBostonMAUSA Department of Biostatistics and Bioinformatics Rollins School of Public HealthEmory UniversityAtlantaGAUSA

BACKGROUND The novel human coronavirus disease 2019(COVID-19)pandemic has claimed more than 600,000 lives worldwide,causing tremendous public health,social,and economic *** the risk factors of COVID-19 are still under investigation,environmental factors,such as urban air pollution,may play an important role in increasing population susceptibility to COVID-19 *** We conducted a cross-sectional nationwide study using zero-inflated negative binomial models to estimate the association between longterm(2010–2016)county-level exposures to NO2,PM2.5,and O3 and county-level COVID-19 case-fatality and mortality rates in the United *** used both single-and multi-pollutant models and controlled for spatial trends and a comprehensive set of potential confounders,including state-level test positive rate,county-level health care capacity,phase of epidemic,population mobility,population density,sociodemographics,socioeconomic status,race and ethnicity,behavioral risk factors,and *** From January 22,2020,to July 17,2020,3,659,828 COVID-19 cases and 138,552 deaths were reported in 3,076 US counties,with an overall observed case-fatality rate of 3.8%.County-level average NO2 concentrations were positively associated with both COVID-19 case-fatality rate and mortality rate in single-,bi-,and tri-pollutant *** adjusted for co-pollutants,per interquartile-range(IQR)increase in NO2(4.6 ppb),COVID-19 case-fatality rate and mortality rate were associated with an increase of 11.3%(95%CI 4.9%–18.2%)and 16.2%(95%CI 8.7%–24.0%),*** did not observe significant associations between COVID-19 case-fatality rate and long-term exposure to PM2.5 or O3,although per IQR increase in PM2.5(2.6 mg/m3)was marginally associated,with a 14.9%(95%CI 0.0%–31.9%)increase in COVID-19 mortality rate when adjusted for *** Long-term exposure to NO2,which largely arises from urban combustion sources such as traffic,may enhanc

关键词： AIR POLLUTION NITROGEN DIOXIDE COVID-19 CASEFATALITY RATE MORTALITY

Long-term effects of PM_(2.5) components on incident dementia in the northeastern United States

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The Innovation 2022年第2期3卷 95-102页

作者： Jing Li Yifan Wang Kyle Steenland Pengfei Liu Aaron van Donkelaar Randall V.Martin howard h.chang W.Michael Caudle Joel Schwartz Petros Koutrakis Liuhua Shi Department of Environmental health Harvard T.H.Chan School of Public HealthBostonMA 02115USA Gangarosa Department of Environmental health Rollins School of Public HealthEmory UniversityAtlantaGA 30322USA School of Earth and Atmospheric Sciences Georgia Institute of TechnologyAtlantaGA 30332USA Department of Energy Environmental&Chemical EngineeringWashington University at St.LouisMO 63130USA Department of Biostatistics and Bioinformatics Rollins School of Public HealthEmory UniversityAtlantaGA 30322USA

Growing evidence has linked long-term fine particulate matter(PM_(2.5))exposure to neurological *** is known about the individual effects of PM_(2.5) components.A population-based cohort study investigated the association between long-term(1-year average)exposure to PM_(2.5) components and dementia incidence among the elderly population(age,R65 years)in the United States.

关键词： northeastern incident exposure