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A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

《工程管理前沿（英文）》 2014年 第1卷 第4期   页码 341-347 doi: 10.15302/J-FEM-2014060

摘要： The healthy and stable development of energy efficiencies in existing buildings cannot be separated from effective policy operation, and evaluating policy effectiveness contributes to scientifically-sound government decision-making. This paper creates an evaluation index system and a grey comprehensive evaluation model for policy effectiveness for energy efficiency in existing buildings using three dimensions: 1) the effect of the policy itself; 2) the administrative effect of the policy; and 3) policy implementation effects. It chooses the government’s subsidy policy and preferential tax policy at market cultivation stage for its empirical comparative evaluation. The evaluation indicates that the former is more effective. Finally, it puts forward policy development suggestions from the perspective of: 1) clarifying incentive object; 2) broadening incentive scope; 3) increasing incentive intensity; and 4) innovating incentive mode.

关键词： grey comprehensive evaluation     existing buildings     energy efficiency     policies effectiveness    

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A constrained neural network model for soil liquefaction assessment with global applicability

Yifan ZHANG, Rui WANG, Jian-Min ZHANG, Jianhong ZHANG

《结构与土木工程前沿（英文）》 2020年 第14卷 第5期   页码 1066-1082 doi: 10.1007/s11709-020-0651-2

摘要： A constrained back propagation neural network (C-BPNN) model for standard penetration test based soil liquefaction assessment with global applicability is developed, incorporating existing knowledge for liquefaction triggering mechanism and empirical relationships. For its development and validation, a comprehensive liquefaction data set is compiled, covering more than 600 liquefaction sites from 36 earthquakes in 10 countries over 50 years with 13 complete information entries. The C-BPNN model design procedure for liquefaction assessment is established by considering appropriate constraints, input data selection, and computation and calibration procedures. Existing empirical relationships for overburden correction and fines content adjustment are shown to be able to improve the prediction success rate of the neural network model, and are thus adopted as constraints for the C-BPNN model. The effectiveness of the C-BPNN method is validated using the liquefaction data set and compared with that of several liquefaction assessment methods currently adopted in engineering practice. The C-BPNN liquefaction model is shown to have improved prediction accuracy and high global adaptability.

关键词： soil liquefaction assessment     case history dataset     constrained neural network model     existing knowledge    

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Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

《结构与土木工程前沿（英文）》 2023年 第17卷 第1期   页码 37-52 doi: 10.1007/s11709-022-0920-3

摘要： An analytical model is proposed to estimate the discontinuous mechanical behavior of an existing shield tunnel above a new tunnel. The existing shield tunnel is regarded as a Timoshenko beam with longitudinal joints. The opening and relative dislocation of the longitudinal joints can be calculated using Dirac delta functions. Compared with other approaches, our method yields results that are consistent with centrifugation test data. The effects of the stiffness reduction at the longitudinal joints (α and β), the shearing stiffness of the Timoshenko beam GA, and different additional pressure profiles on the responses of the shield tunnel are investigated. The results indicate that our proposed method is suitable for simulating the discontinuous mechanical behaviors of existing shield tunnels with longitudinal joints. The deformation and internal forces decrease as α, β, and GA increase. The bending moment and shear force are discontinuous despite slight discontinuities in the deflection, opening, and dislocation. The deflection curve is consistent with the additional pressure profile. Extensive opening, dislocation, and internal forces are induced at the location of mutation pressures. In addition, the joints allow rigid structures to behave flexibly in general, as well as allow flexible structures to exhibit locally rigid characteristics. Owing to the discontinuous characteristics, the internal forces and their abrupt changes at vulnerable sections must be monitored to ensure the structural safety of existing shield tunnels.

关键词： tunnel–soil interaction     discontinuous analysis     longitudinal joints     existing shield tunnel     Timoshenko beam     Dirac delta function    

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removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration, pH, and co-existing

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

《环境科学与工程前沿（英文）》 2009年 第3卷 第4期   页码 428-433 doi: 10.1007/s11783-009-0146-9

摘要： A laboratory-scale investigation was performed to study arsenic (As (V)) removal by negatively charged GE-HL nanofiltration (NF) membrane in simulated drinking water. Effects of As (V) concentration (0–200μg·L), pH, and co-ions and counter-ions were investigated. The NF membrane presented good stability, and the rejection rates exceeded 90%. The rejection rates of As (V) decreased with the increase of As (V) concentration, while it increased with the increase of pH (reached 96% at pH 6.75). Moreover, a negative relationship was observed between the co-existing ions of Cl, Na, SO, and Ca and the removal of As (V), in which bivalent ions presented more significant effects than monovalent ions.

关键词： nanofiltration (NF)     rejection rate     co-existing ion     co-ion     counter-ion    

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Seismic retrofit of existing SRC frames using rocking walls and steel dampers

Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA

《结构与土木工程前沿（英文）》 2011年 第5卷 第3期   页码 259-266 doi: 10.1007/s11709-011-0114-x

摘要： A retrofit of an existing 11-story steel reinforced concrete frame that features the innovative use of post-tensioned rocking walls and shear steel dampers is presented. The main components of the retrofitting plan and important design considerations are described. The retrofitting system is expected to effectively control the deformation pattern of the existing structure and significantly reduce damage to the existing structure during major earthquakes.

关键词： building structure     seismic retrofit     rocking wall     steel damper    

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Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

《结构与土木工程前沿（英文）》 2009年 第3卷 第2期   页码 111-116 doi: 10.1007/s11709-009-0022-5

摘要： In this paper, a novel “composite reaching law” was explained in details: 1) the equation of discrete motion for a control system; 2) the design of discrete-time variable structure control. In addition, the model of a three-storey shear-type building structure was used to verify the effectiveness of the discrete variable structure control method. The results of numerical example analysis of the model show that the control law can effectively reduce the peak value of seismic response of the building structure and the chattering effect of the control system.

关键词： discrete-time variable structure control     composite reaching law     chattering effect     saturated control law    

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Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

《环境科学与工程前沿（英文）》 2022年 第16卷 第11期 doi: 10.1007/s11783-022-1581-0

摘要：

● The co-existing metals in WPCBs has positive catalytic influence in pyrolysis.

关键词： Waste printed circuit board     Catalyst     Pyrolysis     Kinetics    

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既有居住建筑节能改造外部性及其量化研究

赵琰,刘晓君

《中国工程科学》 2014年 第16卷 第10期   页码 100-105

摘要：

既有商品住宅节能改造具有一定程度的外部性，阻碍了节能改造的深入开展。通过分析节能改造外部性的产生原因和外部性表现，建立外部性测算方法，为外部性内部化，构建节能改造外部性偿还机制提供必要依据。采用经济学理论与方法对既有商品住宅节能改造外部性的产生和表现等进行了分析，在识别外部性供体与受体的基础上，提出了节能改造外部性的测算方法。通过案例分析论证了外部性测算方法的适用性。结果表明，应减轻或消除外部性对节能改造的影响，采取必要手段将节能改造外部性内部化，构建统一的节能改造外部性测算方法，建立节能改造外部性偿还与节能量交易机制。

关键词： 既有商品住宅     节能改造     外部性     测算    

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Standard model of knowledge representation

Wensheng YIN

《机械工程前沿（英文）》 2016年 第11卷 第3期   页码 275-288 doi: 10.1007/s11465-016-0372-3

摘要：

Knowledge representation is the core of artificial intelligence research. Knowledge representation methods include predicate logic, semantic network, computer programming language, database, mathematical model, graphics language, natural language, etc. To establish the intrinsic link between various knowledge representation methods, a unified knowledge representation model is necessary. According to ontology, system theory, and control theory, a standard model of knowledge representation that reflects the change of the objective world is proposed. The model is composed of input, processing, and output. This knowledge representation method is not a contradiction to the traditional knowledge representation method. It can express knowledge in terms of multivariate and multidimensional. It can also express process knowledge, and at the same time, it has a strong ability to solve problems. In addition, the standard model of knowledge representation provides a way to solve problems of non-precision and inconsistent knowledge.

关键词： knowledge representation     standard model     ontology     system theory     control theory     multidimensional representation    

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知识论框架 通向信息-知识-智能统一的理论

钟义信

《中国工程科学》 2000年 第2卷 第9期   页码 50-64

摘要：

知识是人类所创造的宝贵财富，但至今没有形成系统的知识理论。文章旨在提出和建立知识论的框架体系，包括它的基础和主体两部分。基础部分主要给出知识的概念、定义、表示、度量、推理和决策规则；主体部分的核心是阐明由信息提炼知识（知识生成）以及由知识形成智能（知识激活）的机理。知识论的建立将为信息论-知识论-智能论的统一理论奠定坚实的基础，促进人们在更高的水平上利用信息和知识，研究、设计和应用各种智能机器，推动经济和社会的发展。

关键词： 知识     知识量     知识生成     知识激活     信息-知识-智能的统一理论    

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Research on Knowledge Sharing and Transfer in Remanufacturing Engineering Management Based on SECI Model

Ling-ling Zhang,Ming-hui Zhao,Qiao Wang

《工程管理前沿（英文）》 2016年 第3卷 第2期   页码 136-143 doi: 10.15302/J-FEM-2016030

摘要： In this paper, an application mode and method of knowledge management in remanufacturing engineering management is established based on Nonaka’s SECI model. The relationships between knowledge transfer, knowledge sharing and remanufacturing engineering management are highlighted. It is noticeable that a great deal of knowledge transfer and sharing activities, which can improve the performance of remanufacturing engineering management constantly, are involved in remanufacturing engineering.

关键词： remanufacturing     engineering management     knowledge transfer and sharing     knowledge management    

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perspectives and future research directions for the phytoremediation of heavy metal-contaminated soil: A knowledge

《环境科学与工程前沿（英文）》 2022年 第16卷 第6期 doi: 10.1007/s11783-021-1507-2

摘要：

• The overall global perspective of the PHMCS field was obtained.

关键词： Heavy metal-contaminated soil     Hot topics     Knowledge mapping analysis     Knowledge base     Phytoremediation    

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知识管理系统的运用与深化

李华

《中国工程科学》 2011年 第13卷 第8期   页码 87-93

摘要：

在知识经济时代，企业已经开始认识到最宝贵的资产是知识，知识不但是生产的关键要素，而且还是企业保持持续竞争优势的重要手段。企业知识管理系统的有效实施，要在正确的思想指导下，建立适于知识共享的组织结构和企业文化，在理解和实施知识管理时必须坚持积累、信任、共享、交流、学习五项原则。知识管理的目标是实现组织总体发展战略，因此知识共享的过程也必须以实现组织战略目标为前提，重视对共享知识的甄选，建立知识共享平台和存储管理单元，引导知识交流，实施奖励政策。

关键词： 知识管理     知识共享     知识论坛    

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Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

《机械工程前沿（英文）》 2012年 第7卷 第4期   页码 376-384 doi: 10.1007/s11465-012-0352-1

摘要：

This article is dedicated to present a review on existing challenges and latest developments in surgical robotics in attempts to overcome the obstacles lying behind. Rather than to perform an exhaustive evaluation, we would emphasize more on the new insight by digesting the emerging bio-inspired surgical technologies with potentials to revolutionize the field. Typical approaches, possible applications, advantages and technical challenges were discussed. Evolutions of surgical robotics and future trends were analyzed. It can be found that, the major difficulties in the field of surgical robots may not be properly addressed by only using conventional approaches. As an alternative, bio-inspired methods or materials may shed light on new innovations. While endeavors to deal with existing strategies still need to be made, attentions should be paid to also borrow ideas from nature.

关键词： minimally invasive surgery     surgical robotics     haptic feedback     miniaturization     bio-inspiration     bionics    

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大数据知识工程发展现状及展望

郑庆华,刘欢,龚铁梁,张玲玲,刘均

《中国工程科学》 2023年 第25卷 第2期   页码 208-220 doi: 10.15302/J-SSCAE-2023.02.018

摘要：

大数据知识工程是人工智能的“基础设施”、诸多行业和领域面临的共性需求、信息化迈向智能化的必由之路。本文阐述了大数据知识工程产生的背景与概念内涵，提出了“数据知识化、知识体系化、知识可推理”的研究框架；梳理了知识获取与融合、知识表征、知识推理等大数据知识工程关键技术和智慧教育、税务风险管控、智慧医疗等典型场景中的工程应用；总结了大数据知识工程面临的挑战，研判了大数据知识工程的未来研究方向，包括复杂大数据知识获取、知识+数据混合学习、脑启发知识编码记忆等。研究建议，引导多学科交叉融合，设立重大和重点研发专项，推动大数据知识工程基础理论与技术攻关；加强企业和研究机构间交流合作，推广前沿研究成果并形成应用示范，建立大数据知识工程行业标准体系；以重大需求应用为导向，探索校企协同育人模式，加快大数据知识工程技术在重要行业的落地应用。

关键词： 大数据知识工程     知识获取     知识融合     知识表征     知识推理    

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标题 作者 时间 类型 操作

A Comprehensive Evaluation of Policy Effectiveness for Energy Efficiency in Existing Buildings

Xing Wei,Han-ding Guo

期刊论文

A constrained neural network model for soil liquefaction assessment with global applicability

Yifan ZHANG, Rui WANG, Jian-Min ZHANG, Jianhong ZHANG

期刊论文

Discontinuous mechanical behaviors of existing shield tunnel with stiffness reduction at longitudinal

期刊论文

removal from groundwater by GE-HL nanofiltration membrane: effects of arsenic concentration, pH, and co-existing

Xiaowei WANG, Wenjun LIU, Weifang MA, Desheng LI,

期刊论文

Seismic retrofit of existing SRC frames using rocking walls and steel dampers

Akira WADA, Zhe QU, Shojiro MOTOYUI, Hiroyasu SAKATA

期刊论文

Improving existing “reaching law” for better discrete control of seismically-excited building structures

Zhijun LI, Zichen DENG

期刊论文

Self-catalytic pyrolysis thermodynamics of waste printed circuit boards with co-existing metals

期刊论文

既有居住建筑节能改造外部性及其量化研究

赵琰,刘晓君

期刊论文

Standard model of knowledge representation

Wensheng YIN

期刊论文

知识论框架 通向信息-知识-智能统一的理论

钟义信

期刊论文

Research on Knowledge Sharing and Transfer in Remanufacturing Engineering Management Based on SECI Model

Ling-ling Zhang,Ming-hui Zhao,Qiao Wang

期刊论文

perspectives and future research directions for the phytoremediation of heavy metal-contaminated soil: A knowledge

期刊论文

知识管理系统的运用与深化

李华

期刊论文

Surgical robotics: A look-back of latest advancement and bio-inspired ways to tackle existing challenges

Yang LIU, Jing LIU

期刊论文

大数据知识工程发展现状及展望

郑庆华,刘欢,龚铁梁,张玲玲,刘均

期刊论文