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Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI
《能源前沿(英文)》 2020年 第14卷 第4期 页码 867-881 doi: 10.1007/s11708-020-0707-y
关键词: concentrated solar power parabolic trough receiver heat loss solar energy annual performance
Corrigendum to “Multidecadal Trends in Large-Scale Annual Mean SATa Based on CMIP5 Historical Simulations Corrigendum
Nan Xing,Jianping Li,Lanning Wang
《工程(英文)》 2017年 第3卷 第3期 页码 428-428 doi: 10.1016/J.ENG.2017.03.015
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
《结构与土木工程前沿(英文)》 2018年 第12卷 第3期 页码 425-437 doi: 10.1007/s11709-017-0427-5
In recent decades, many public buildings, located in seismic-prone residential areas, had to grapple with abnormal loads against which the structures were unguarded. In this piece of research, an ordinary three dimensional reinforced concrete building is selected as case study. The building is located in an earthquake-prone region; however, it is designed according to seismic building codes. Yet, it is not shielded against abnormal loads, such as blasts. It is assumed that the building suffers a blast load, due to mechanical/thermal installation failure during or after intense seismic oscillations. These two critical incidents are regarded codependent and compatible. So the researchers developed scenarios and tried to assess different probabilities for each scenario and carried out an analysis to ensure if progressive collapse had set in or not. In the first step, two analysis models were used for each scenario; a non-linear dynamic time history analysis and a blast local dynamic analysis. In the second step, having the structural destructions of the first step in view, a pushdown analysis was carried out to determine the severity of progressive collapse and assess building robustness. Finally, the annual probability of structural collapse under simultaneous earthquake and blast loads was estimated and offered.
关键词: gas blast pushdown analysis progressive collapse annual probability of structural collapse 3D model of structure
梁骏吾
《中国工程科学》 2000年 第2卷 第6期 页码 33-35
文章简要评述了世界以及中国的电子级多晶硅的生产能力和市场需求。在2000年和2010年中国对多晶硅的需求分别是736 t/a和1304 t/a。但近几年中国的多晶硅生产仅达到80 t/a,所以在中国建设一座年产1000 t电子级多晶硅的工厂是很合理的。然而由最新统计数据可知,自1997年以来,世界多晶硅生产能力连年均超过市场需求,而且在最近的将来,这一趋势将会继续。为了占领国内多晶硅市场,未来的多晶硅工厂将面临挑战,产品质量和生产成本是应当考虑的最重要指标。为了占领国内市场,在保证多晶硅产品纯度的前提下,生产成本只能略微超过20美元/kg。
Zhaoyou Zhu, Guoxuan Li, Yao Dai, Peizhe Cui, Dongmei Xu, Yinglong Wang
《化学科学与工程前沿(英文)》 2020年 第14卷 第5期 页码 824-833 doi: 10.1007/s11705-019-1867-3
关键词: heuristic method solvent selection extractive distillation total annual cost
Probabilistic safety assessment of self-centering steel braced frame
Navid RAHGOZAR, Nima RAHGOZAR, Abdolreza S. MOGHADAM
《结构与土木工程前沿(英文)》 2018年 第12卷 第1期 页码 163-182 doi: 10.1007/s11709-017-0384-z
关键词: self-centering steel braced frame mean annual frequency safety assessment confidence level margin of safety
Fating LI, Pengfei JIE, Zhou FANG, Zhimei WEN
《能源前沿(英文)》 2021年 第15卷 第1期 页码 170-185 doi: 10.1007/s11708-020-0680-5
关键词: double pipes optimization model optimum insulation thickness minimum annual total cost
Functional trait differences between native bunchgrasses and the invasive grass
Huiqin HE, Thomas A. MONACO, Thomas A. JONES
《农业科学与工程前沿(英文)》 2018年 第5卷 第1期 页码 139-147 doi: 10.15302/J-FASE-2017175
关键词: annual grass comparative growth drought response invasive plant native grass specific leaf area soil-water use
Potential sources of unintentionally produced PCB, HCB, and PeCBz in China: A preliminary overview
Xiaotu Liu, Heidelore Fiedler, Wenwen Gong, Bin Wang, Gang Yu
《环境科学与工程前沿(英文)》 2018年 第12卷 第6期 doi: 10.1007/s11783-018-1036-9
A preliminary analysis of potential sources for unintentionally produced PCB, HCB and PeCBz in China. Activity rates of sources for reference years from 2000 to 2015 provided. Emissions from a number of sources summarized and compared. Implications for future research and regulation discussed.
关键词: Unintentionally produced POPs Polychlorinated biphenyls Hexachlorobenzene Pentachlorobenzene sources of releases Annual production activities
Performance-based and performance-driven architectural design and optimization
Xing SHI
《结构与土木工程前沿(英文)》 2010年 第4卷 第4期 页码 512-518 doi: 10.1007/s11709-010-0090-6
关键词: performance optimization architectural design simulation sustainability
钢产量增长机制的解析及2000—2007年我国钢产量增长过快原因的探索
陆钟武,岳强
《中国工程科学》 2010年 第12卷 第6期 页码 4-11
分两步解析钢产量的增长机制,首先在若干假设条件下提出了钢产量增长的基准模式,其主要特点是钢产量与GDP同步增长,分析了基准模式下的钢产量、在役钢量、GDP以及它们的年增长率;然后讨论偏离基准模式的各种可能性,及其对钢产量增速的影响。在此基础上得到了钢产量年增长率的基本计算式。分析了偏离基准模式对单位GDP钢产量的影响。在对钢产量增长机制进行解析的基础上,广泛联系全社会发生的各种现象,提出使我国钢产量增速远远超过GDP增速的16种现象,提出在宏观调控工作中,要区别对待这些现象。从中、日、美三国单位GDP钢产量数据对比可见,我国降低单位GDP钢产量的空间很大。文章为我国钢铁行业的宏观调控提供了新思路。
思维的两重性及其向创造性思维的转化 纪念钱学森院士《关于思维科学》发表15周年
梁桂明
《中国工程科学》 2003年 第5卷 第2期 页码 26-34
进入21世纪的新时代,带来与思维相关的两个特征:创新与共融。关于创新,如何激发创造性思维?成为热门的话题。从唯物辩证法的哲学的认识论和真理的相对性的高度来探索,发现任何一种思维形式(包括演绎法思维和定势-习惯思维)都具有两重性,即非创造性与创造性并存,在一定条件下,非创造性思维可以转化或激发为创造性思维,产生新知识,获得创新成果。关于共融,如何进行思维的界定和分类,有许多种说法。笔者把心理学与生理学的成果融合起来,形成两大类,即左半脑主导的理性思维和右半脑主导的悟性思维。其基本的思维形式的分类与思维的大类结合,成为两大类7种。把辩证法和共融结合,得到下列结论:理性思维与感性思维的统一,原有知识与新知识的统一,设想与验证的统一,发现与发明的统一,科学(真感)与艺术(美感)的统一。对最后一个结论,笔者以工业产品造型设计原理的探索为例加以说明。此原理在工业设计上属首次推出。
《结构与土木工程前沿(英文)》 2023年 第17卷 第5期 页码 704-721 doi: 10.1007/s11709-023-0941-6
关键词: precast steel–UHPC composite beam flexural performance longitudinal shear performance parametric study transverse reinforcement ratio
Experimental research on cyclone performance at high temperature
LI Wenqi, CHEN Jianyi
《机械工程前沿(英文)》 2007年 第2卷 第3期 页码 310-317 doi: 10.1007/s11465-007-0055-1
关键词: diameter definite function nondimensional experimental cyclone performance influence
Comparison of indices for stiffness performance evaluation
Giuseppe CARBONE, Marco CECCARELLI,
《机械工程前沿(英文)》 2010年 第5卷 第3期 页码 270-278 doi: 10.1007/s11465-010-0023-z
标题 作者 时间 类型 操作
Potential of performance improvement of concentrated solar power plants by optimizing the parabolic trough
Honglun YANG, Qiliang WANG, Jingyu CAO, Gang PEI, Jing LI
期刊论文
Corrigendum to “Multidecadal Trends in Large-Scale Annual Mean SATa Based on CMIP5 Historical Simulations
Nan Xing,Jianping Li,Lanning Wang
期刊论文
Proposal of a probabilistic assessment of structural collapse concomitantly subject to earthquake and gas explosion
Gholamreza ABDOLLAHZADEH, Hadi FAGHIHMALEKI
期刊论文
Determination of a suitable index for a solvent via two-column extractive distillation using a heuristic method
Zhaoyou Zhu, Guoxuan Li, Yao Dai, Peizhe Cui, Dongmei Xu, Yinglong Wang
期刊论文
Probabilistic safety assessment of self-centering steel braced frame
Navid RAHGOZAR, Nima RAHGOZAR, Abdolreza S. MOGHADAM
期刊论文
Determining the optimum economic insulation thickness of double pipes buried in the soil for district heating systems
Fating LI, Pengfei JIE, Zhou FANG, Zhimei WEN
期刊论文
Functional trait differences between native bunchgrasses and the invasive grass
Huiqin HE, Thomas A. MONACO, Thomas A. JONES
期刊论文
Potential sources of unintentionally produced PCB, HCB, and PeCBz in China: A preliminary overview
Xiaotu Liu, Heidelore Fiedler, Wenwen Gong, Bin Wang, Gang Yu
期刊论文
Flexural and longitudinal shear performance of precast lightweight steel–ultra-high performance concrete
期刊论文