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Seismic fragility assessment of revised MRT buildings considering typical construction changes

Rakesh DUMARU, Hugo RODRIGUES, Humberto VARUM

《结构与土木工程前沿（英文）》 2020年 第14卷 第1期   页码 241-266 doi: 10.1007/s11709-019-0560-4

摘要： The present study investigates the vulnerability assessment of the prototype revised Mandatory Rule of Thumb (MRT) buildings initially designed and detailed for three storeys bare frame building; later modified through variable number of storeys (three, four, and five) and different arrangement of infill walls (bare frame, soft-storey, irregular infilled, and fully infilled). The application of infill walls increases the fundamental frequencies, stiffness, and maximum strength capacity, but reduces the deformation capability than the bare frame building. The vulnerability was also reduced through infill walls, where the probability of exceeding partial-collapse and collapse damage reduced by 80% and 50%, respectively. Furthermore, the increased in storeys (three to five) also increases the failure probability, such that partial-collapse and collapse for fully infilled increases by almost 55% and 80%, respectively. All obtained results and discussions concluded that the structural sections and details assigned for MRT building is not sufficient if considered as bare frame and soft-storey. And increase in number of storeys causes building highly vulnerable although the infill walls were considered.

关键词： mid-rise buildings     revised NBC 205: 2012     masonry infill walls     configurations of infill walls     vulnerability assessment and inter-storey drift    

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贯彻《节能法》推动节能工作

傅志寰

《中国工程科学》 2008年 第10卷 第12期   页码 13-16

摘要：

近年来我国能源消费增长快、利用效率低的问题比较突出，原有《节能法》已经不能适应当前节能工作的要求。为了推动全社会的节约能源工作，全国人大今年修订了这部法律。文章介绍了修订后的《节能法》基本思路、主要内容和实施后的初步效果。

关键词： 法律     能源     节约    

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The 2015 International Summit Forum on Engineering Science and Technology Development Strategy, the 205th

China Engineering Management Forum Organization Committee

《工程管理前沿（英文）》 2015年 第2卷 第2期   页码 195-197 doi: 10.15302/J-FEM-2015032

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软夹芯夹层梁最大弯曲正应力的计算

郝景新,刘文金,吴新凤

《中国工程科学》 2014年 第16卷 第4期   页码 92-95

摘要：

最大弯曲正应力是衡量夹层梁弯曲性能的重要参数之一，本文推导出了将软夹芯夹层梁等效成等 截面均质单层梁计算最大弯曲正应力的方法，并在此基础上进行三点弯曲试验的算例研究。结果表明：修正单层梁理论与层合梁理论计算的结果是一致的。当破坏载荷与夹层梁横截面的尺寸一定时，随着芯层与总厚度比的增加，修正单层梁理论计算的最大正应力值逐渐增加，而单层梁理论计算的结果为一恒定值。最大弯曲正应力修正公式的建立为夹层梁的工程应用提供理论基础。

关键词： 夹层梁     弯曲正应力     单层梁理论     弯曲特性    

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Experimental study of primary and secondary side coupling natural convection heat transfer characteristics of the passive residual heat removal system in AP1000

Zhimin QIU, Daogang LU, Jingpin FU, Li FENG, Yuhao ZHANG

《能源前沿（英文）》 2021年 第15卷 第4期   页码 860-871 doi: 10.1007/s11708-021-0744-1

摘要： Passive residual heat removal heat exchanger (PRHR HX), which is a newly designed equipment in the advanced reactors of AP1000 and CAP1400, plays an important role in critical accidental conditions. The primary and secondary side coupling heat transfer characteristics of the passive residual heat removal system (PRHRS) determine the capacity to remove core decay heat during the accidents. Therefore, it is necessary to investigate the heat transfer characteristics and develop applicable heat transfer formulas for optimized design. In the present paper, an overall scaled-down natural circulation loop of PRHRS in AP1000, which comprises a scaled-down in-containment refueling water storage tank (IRWST) and PRHR HX models and a simulator of the reactor core, is built to simulate the natural circulation process in residual heat removal accidents. A series of experiments are conducted to study thermal-hydraulic behaviors in both sides of the miniaturized PRHR HX which is simulated by 12 symmetric arranged C-shape tubes. For the local PRHR HX heat transfer performance, traditional natural convection correlations for both the horizontal and vertical bundles are compared with the experimental data to validate their applicability for the specific heat transfer condition. Moreover, the revised natural convection heat transfer correlations based on the present experimental data are developed for PRHR HX vertical and lower horizontal bundles. This paper provides essential references for the PRHRS operation and further optimized design.

关键词： passive residual heat removal heat exchanger (PRHR HX)     C-shape tube     revised heat transfer correlations     coupled natural convection    

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Introduction to the special issue on the 2012 EUCOMES European Conference on Mechanism Science

Marco CECCARELLI, Fernando VIADERO

《机械工程前沿（英文）》 2013年 第8卷 第1期   页码 1-2 doi: 10.1007/s11465-013-0368-1

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New Year’s Message

Yi QIAN

《环境科学与工程前沿（英文）》 2012年 第6卷 第1期   页码 1-1 doi: 10.1007/s11783-012-0398-7

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Social insurance for occupational diseases

null

《医学前沿（英文）》 2012年 第6卷 第2期   页码 221-223 doi: 10.1007/s11684-012-0187-5

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我国生态文明统计核算方法研究

石庆焱,周晶

《中国工程科学》 2017年 第19卷 第4期   页码 67-73 doi: 10.15302/J-SSCAE-2017.04.011

摘要： 本文从生态文明建设的实际需求出发，分析了我国在生态文明统计核算中存在的问题，在结合SEEA2012–CF的基础上构建了我国生态文明统计指标体系和核算框架，并就进一步完善我国生态文明统计核算体系提出建议

关键词： 生态文明     SEEA2012–CF     统计体系     核算框架     自然资源资产负债表     环境资产账户    

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MicroRNAs and lung cancers: from pathogenesis to clinical implications

null

《医学前沿（英文）》 2012年 第6卷 第2期   页码 134-155 doi: 10.1007/s11684-012-0188-4

摘要：

Lung cancer is the leading cause of cancer-related deaths in the US and worldwide. Better understanding of the disease is warranted for improvement in clinical management. Here we summarize the functions of small-RNA-based, posttranscriptional gene regulators, i.e. microRNAs, in the pathogenesis of lung cancers. We discuss the microRNAs that play oncogenic as well as tumor suppressive roles. We also touch on the value of microRNAs as markers for diagnosis, prognosis and the promising field of microRNA-based novel therapies for lung cancers.

关键词： lung biology     lung cancer     microRNA    

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Mechanisms and impacts of chromosomal translocations in cancers

null

《医学前沿（英文）》 2012年 第6卷 第3期   页码 263-274 doi: 10.1007/s11684-012-0215-5

摘要：

Chromosomal aberrations have been associated with cancer development since their discovery more than a hundred years ago. Chromosomal translocations, a type of particular structural changes involving heterologous chromosomes, have made a critical impact on diagnosis, prognosis and treatment of cancers. For example, the discovery of translocation between chromosomes 9 and 22 and the subsequent success of targeting the fusion product BCR-ABL transformed the therapy for chronic myelogenous leukemia. In the past few decades, tremendous progress has been achieved towards elucidating the mechanism causing chromosomal translocations. This review focuses on the basic mechanisms underlying the generation of chromosomal translocations. In particular, the contribution of frequency of DNA double strand breaks and spatial proximity of translocating loci is discussed.

关键词： DNA double strand breaks     chromosomal translocations     genomic instability     spatial proximity     carcinogenesis    

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Individualized medicine, health medicine, and constitutional theory in Chinese medicine

null

《医学前沿（英文）》 2012年 第6卷 第1期   页码 1-7 doi: 10.1007/s11684-012-0173-y

摘要：

The patterns of modern science and changes in the medical model can result in the transformation of the current state of individualized and health medicines into being the primary trend in medical development. Chinese and Western medical systems are dissimilar in terms of value orientations, thinking style, and research directions because of their different historical and cultural backgrounds. Individualized treatment in modern medicine is mainly established based on individual genome information and the differences in mononucleotide polymorphi-sms. However, such treatment method is expensive, creates an uncertain genetic marker, and leads to different result interpretations, among other problems. The Chinese constitutional theory developed in the 1970s expresses the principle behind Chinese health medicine and individual treatment and provides the corresponding methods. The Chinese constitutional theory divides the constitution of the Chinese population into nine categories based on established classification criteria. It promotes the study of the relationship of each constitution to diseases and Chinese medicine preparation toward adjusting the constitution and preventing diseases. The theory also provides methods and tools for individualized treatment. Constitution identification shows the direction and provides the core technology for the evaluation of the health status. By combining the developments in modern biotechnology, new diagnostic techniques and treatment models of constitution-differentiation, disease-differentiation, and syndrome-differentiation can be established for the development of individualized Chinese medicine treatment and health medicine for the international medical community.

关键词： individualized medicine     health medicine     constitutional theory in Chinese medicine    

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Evolutionary engineering of

Jixian GONG, Nan DUAN, Xueming ZHAO

《化学科学与工程前沿（英文）》 2012年 第6卷 第2期   页码 174-178 doi: 10.1007/s11705-012-1276-3

摘要： Evolutionary engineering is a novel whole-genome wide engineering strategy inspired by natural evolution for strain improvement. Astaxanthin has been widely used in cosmetics, pharmaceutical and health care food due to its capability of quenching active oxygen. Strain improvement of , one of the main sources for natural astaxanthin, is of commercial interest for astaxanthin production. In this study a selection procedure was developed for adaptive evolution of strains under endogenetic selective pressure induced by additive in environmental niches. Six agents, which can induce active oxygen in cells, were added to the culture medium respectively to produce selective pressure in process of evolution. The initial strain, 2-1557, was mutagenized to acquire the initial strain population, which was then cultivated for 550 h at selective pressure and the culture was transferred every 48h. Finally, six evolved strains were selected after 150 generations of evolution. The evolved strains produced up to 48.2% more astaxanthin than the initial strain. Our procedure may provide a promising alternative for improvement of high-production strain.

关键词： evolutionary engineering     astaxanthin     strain improvement    

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Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

《化学科学与工程前沿（英文）》 2012年 第6卷 第2期   页码 125-125 doi: 10.1007/s11705-012-1291-4

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Treatability aspects of urban stormwater stressors

Anthony N. TAFURI, Richard FIELD

《环境科学与工程前沿（英文）》 2012年 第6卷 第5期   页码 631-637 doi: 10.1007/s11783-012-0420-0

摘要： Pollution from diffuse sources (pollution from contaminants picked up and carried into surface waters by stormwater runoff) has been identified as a significant source of water quality problems in the U.S. scientists and engineers continue to seek solutions that will allow them to optimize existing technologies and develop new ones that will provide the best possible protection to people, wildlife, and the environment. This paper addresses the various pollutants or stressors in urban stormwater, including flow (shear force), pathogens, suspended solids/sediment, toxicants (organic and metals), nutrients, oxygen demanding substances, and coarse solids. A broad overview of the pollutants removed and the removal mechanisms by and of conventional best management practices (BMPs) is also presented. The principal treatment mechanisms of conventional wet ponds, vegetative swales/buffer strips, and wetlands are sedimentation and filtration. These mechanisms have the capability to remove significant amounts of suspended solids or particulate matter and are a vital component of strategies to reduce pollutant loads to receiving waters. In addition, because most of the nation’s receiving water violations are caused by pathogen indicator bacteria, it is of utmost importance that research efforts address this problem. Further research is also needed on the treatment of emerging contaminants in BMPs and on the costs and affects of maintenance and maintenance schedules on the long-term performance of BMPs.

关键词： stormwater     wet weather flow     urban runoff    

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标题 作者 时间 类型 操作

Seismic fragility assessment of revised MRT buildings considering typical construction changes

Rakesh DUMARU, Hugo RODRIGUES, Humberto VARUM

期刊论文

贯彻《节能法》推动节能工作

傅志寰

期刊论文

The 2015 International Summit Forum on Engineering Science and Technology Development Strategy, the 205th

China Engineering Management Forum Organization Committee

期刊论文

软夹芯夹层梁最大弯曲正应力的计算

郝景新,刘文金,吴新凤

期刊论文

Experimental study of primary and secondary side coupling natural convection heat transfer characteristics of the passive residual heat removal system in AP1000

Zhimin QIU, Daogang LU, Jingpin FU, Li FENG, Yuhao ZHANG

期刊论文

Introduction to the special issue on the 2012 EUCOMES European Conference on Mechanism Science

Marco CECCARELLI, Fernando VIADERO

期刊论文

New Year’s Message

Yi QIAN

期刊论文

Social insurance for occupational diseases

null

期刊论文

我国生态文明统计核算方法研究

石庆焱,周晶

期刊论文

MicroRNAs and lung cancers: from pathogenesis to clinical implications

null

期刊论文

Mechanisms and impacts of chromosomal translocations in cancers

null

期刊论文

Individualized medicine, health medicine, and constitutional theory in Chinese medicine

null

期刊论文

Evolutionary engineering of

Jixian GONG, Nan DUAN, Xueming ZHAO

期刊论文

Special issue on the Asian Congress on Biotechnology 2011

Bang-Ce YE

期刊论文

Treatability aspects of urban stormwater stressors

Anthony N. TAFURI, Richard FIELD

期刊论文