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Development and utilization of underground space for the protection of relics in the Yang Emperor Mausoleum of the Han Dynasty

CHEN Zhilong, ZHANG Ping, LI Juxi

《结构与土木工程前沿（英文）》 2007年第1卷第2期页码 229-233 doi: 10.1007/s11709-007-0028-9

摘要： By analyzing the ten burials that have been unearthed at the Yang Emperor Mausoleum of the Han Dynasty, and China s first wholly underground protection and exhibition hall of relics that is under construction, the article expounds the importance of relic site protection through underground space. In particular, it discusses the preservation of historical and cultural relics, the harmonious relationship between architecture and nature, and the collection and security of cultural relics.

关键词： importance architecture preservation harmonious relationship construction

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The Origin and System Analysis of Harmonious Management for Engineering

Mao-guang Lin,Qian-kun Wang,Hua-tao Peng,Yu-dong Wang

《工程管理前沿（英文）》 2015年第2卷第3期页码 241-248 doi: 10.15302/J-FEM-2015040

摘要： Engineering is a production activity aimed at increasing people’s utility; however, serious crises are frequently reported to be caused by engineering constructions, both for nature and human beings. Based on engineering theories of philosophy, systems and ecology, this paper analyzed the prevailing defects of traditional project management approaches, explored the importance of harmony in engineering and engineering management, and discussed the developmental inevitability, concept connotation and system structure of harmonious management for engineering.

关键词： engineering harmony management

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军事工程建设和谐管理的哲学解析

林茂光,王乾坤,王松俊,王予东

《中国工程科学》 2013年第15卷第11期页码 62-66

摘要：

本文从工程哲学的视角，对军事工程建设和谐管理理论基础从本体论、认识论和方法论的层面进行了剖析。

关键词：军事工程建设和谐管理哲学

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Influence of freeze–thaw damage gradient on stress–strain relationship of stressed concrete

《结构与土木工程前沿（英文）》页码 1326-1340 doi: 10.1007/s11709-023-0014-x

摘要： Influence of freeze–thaw damage gradient on stress–strain relationship of stressed concrete

关键词： strain relationship concrete

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Feasibility analysis of mixed-income housing in China

TIAN Ye, BI Xiangyang, LI Dexiang

《结构与土木工程前沿（英文）》 2007年第1卷第3期页码 371-377 doi: 10.1007/s11709-007-0050-y

摘要： In this paper, it is demonstrated that mixed-income housing is a feasible and beneficial pattern nowadays. This pattern is propitious for good living and harmonious development of society. Based on practice, data are gathered from the field, and the social investment and social distance analysis of the social network theory are used from the perspective of cross-disciplinary fields. The hypothesis is tested and the feasible and beneficial characteristics of mixed-income housing are pointed out.

关键词： beneficial distance analysis harmonious development hypothesis perspective

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Mesh relationship modeling and dynamic characteristic analysis of external spur gears with gear wear

《机械工程前沿（英文）》 2022年第17卷第1期页码 9-9 doi: 10.1007/s11465-021-0665-z

摘要： Gear wear is one of the most common gear failures, which changes the mesh relationship of normal gear. A new mesh relationship caused by gear wear affects meshing excitations, such as mesh stiffness and transmission error, and further increases vibration and noise level. This paper aims to establish the model of mesh relationship and reveal the vibration characteristics of external spur gears with gear wear. A geometric model for a new mesh relationship with gear wear is proposed, which is utilized to evaluate the influence of gear wear on mesh stiffness and unloaded static transmission error (USTE). Based on the mesh stiffness and USTE considering gear wear, a gear dynamic model is established, and the vibration characteristics of gear wear are numerically studied. Comparison with the experimental results verifies the proposed dynamic model based on the new mesh relationship. The numerical and experimental results indicate that gear wear does not change the structure of the spectrum, but it alters the amplitude of the meshing frequencies and their sidebands. Several condition indicators, such as root-mean-square, kurtosis, and first-order meshing frequency amplitude, can be regarded as important bases for judging gear wear state.

关键词： gear wear mesh relationship mesh stiffness transmission error vibration characteristics

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工程和谐与工程创新的互动关系研究

何继善,王进,喻珍

《中国工程科学》 2008年第10卷第12期页码 4-9

摘要：

工程作为人类生存和发展过程中重要而复杂的实践活动，其管理实效的提升是确保社会发展的关键环节。当前工程活动中出现了一系列创新不足及不和谐的现象，如集成化创新度较低、事故频发等。提升工程管理实效，其核心在于工程管理者在完善工程和谐与创新的基础上，实现和谐与创新的互动发展。界定工程和谐及工程创新之后，提出和谐是创新的出发点和归属；反过来，创新是维持和谐的原动力，又是实现更高层次和谐的内驱力。和谐与创新的互动关系研究，有利于人类改变传统的工程创新观，追求工程组织内部、工程和生态环境的和谐，以符合可持续发展的需要。

关键词：工程管理和谐创新和而不同

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Mapping the structure-activity relationship of

Worawan PANPIPAT, Hasene KESKIN, Zheng GUO

《化学科学与工程前沿（英文）》 2015年第9卷第1期页码 105-113 doi: 10.1007/s11705-015-1502-x

摘要： The phase behavior of twelve synthesized -sitosteryl fatty acid esters with acyl moieties with different chain lengths (C2:0-C18:0) and different degrees of unsaturation (C18:1-C18:3) were investigated in pure and mixed Langmuir monolayers with phospholipids. The surface-pressure isotherms showed that short chain -sitosteryl fatty acid esters gave smaller mean molecular areas and had decreased monolayer stability and the long chain steryl esters did not produce collapsed plateaus. All the steryl esters displayed strong condensing effects, but there was a pronounced structural dependency: medium chain esters (C8 and C10) were less efficient than short and long chain esters. Atomic force microscopy imaging demonstrated that monolayers mixed with dipalmitoyl phosphatidylcholine (DPPC) displayed both DPPC-rich and steryl lipid-rich domains. However, the height and area differences between the two phases and the roughness and morphologic patterns were very dependent on the steryl lipid concentrations as well as the length, the degree of unsaturation and the molecular conformations of the acyl segments. These findings not only provide a better understanding of the interactions between phytosteryl hydrophobic derivatives and biomembranes, but also may be of general use for the design and engineering of phytosterol structural derivations for specific food and pharmaceutical applications.

关键词： β-sitosteryl fatty acid esters dipalmitoyl phosphatidylcholine Langmuir monolayer condensing effect structure-activity relationship

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Property-performance relationship of core-shell structured black TiO photocatalyst for environmental

《环境科学与工程前沿（英文）》 2023年第17卷第9期 doi: 10.1007/s11783-023-1711-3

摘要：

● Properties and performance relationship of CSBT photocatalyst were investigated.

关键词： Black TiO₂ Core-shell structure Property-performance relationship Agro-industrial effluent Environmental remediation

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Stress-strain relationship with soil structural parameter of collapse loess

SHAO Shengjun, YU Qinggao, LONG Jiyong

《结构与土木工程前沿（英文）》 2008年第2卷第3期页码 293-293 doi: 10.1007/s11709-008-0100-0

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工程和谐管理的源起与系统分析

林茂光,王乾坤,彭华涛,王予东

《中国工程科学》 2014年第16卷第10期页码 15-21

摘要：

工程是以人的使用为目的的造物活动，人造的各种“工程”已经带来了自然环境及人类自身的严重危机。通过对工程及工程管理和谐性需求剖析，特别是工程管理发展阶段与工程项目管理缺陷性分析，基于工程哲学、工程系统、工程生态等思想，论述了工程和谐管理的发展必然性、概念内涵及其系统架构。

关键词：工程和谐管理

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Stress-strain relationship with soil structural parameters of collapse loess

SHAO Shengjun, LONG Jiyong, YU Qinggao

《结构与土木工程前沿（英文）》 2008年第2卷第2期页码 151-160 doi: 10.1007/s11709-008-0020-z

摘要： Through the tri-axial shearing tests of unsaturated intact loess and based on the concept of comprehensive soil structural potential, this paper reveals the changing laws of soil structural property under the tri-axial stress conditions and establishes a mathematical expression equation of structural parameters, whereby reflecting the effects of unsaturated loess water content, stress and strain states, which is introduced into the shearing stress and shearing strain relation to obtain the structural stress-strain relation. The tests reveal that the loess dilatancy is of shearing contraction and shearing expansion, whereby indicating that there is a good linear relation between the stress ratio and shearing expansion strain ratio. The larger consolidation confining pressure is, the larger the stress of shearing contraction and expansion critical point is; and the larger water content is, the smaller the strain ratio of shearing contraction and expansion critical point is. Finally, the constitutive model is established to reflect the variation in loess structure, stress-strain softening and hardening, and shearing contraction and shearing expansion features. Through the comparative analysis, the stress-strain curves described by the constitutive relationship are found to be in good conformity with test results, whereby testing the rationality of the model in this paper.

关键词： hardening shearing expansion unsaturated structural property mathematical expression

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Relationship between expression of hepatocyte grow factor and apoptosis of trophoblasts in hypertensive

OUYANG Shan, ZHANG Qinghua, QIAO Fuyuan

《医学前沿（英文）》 2007年第1卷第4期页码 386-389 doi: 10.1007/s11684-007-0075-6

摘要： The aim of this study was to investigate the expression of hepatocyte growth factor (HGF) and Fas in placentas of uncomplicated pregnant women and those with hypertensive disorder complicating pregnancy (HDCP), and elucidate the possible relationship between HGF and apoptosis of trophoblasts. Reverse transcription-polymerase chain reaction (RT-PCR) was undertaken to examine the concentration of HGF mRNA and Fas mRNA obtained from 34 cases of HDCP and 30 cases of uncomplicated pregnancy. The expression of HGF mRNA in mild preeclampsia, severe preeclampsia and eclampsia cases was significantly lower than that in the uncomplicated cases (0.43±0.12, 0.38±0.09, 0.19±0.17 versus 0.67±0.19, <0.05), while the expression of Fas mRNA in mild preeclampsia, severe preeclampsia and eclampisa cases was significantly higher than that in the uncomplicated cases (1.58±0.26, 2.96±0.14, 5.98±1.17 versus 1.01±0.36, <0.05). For HGF mRNA and Fas mRNA, there was no difference between gestational hypertension cases and control cases. Decreased HGF mRNA or increased Fas mRNA was found along with the progress of HDCP. Negative correlation was found between the expressions of HGF and Fas. These results indicate that HGF inhibits the apoptosis mediated by Fas, and the reduced expression of HGF in HDCP may be responsible for the apoptosis of trophoblasts.

关键词： pregnancy concentration possible relationship responsible hepatocyte

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Stress-strain relationship of concrete in freeze-thaw environment

ZOU Chaoying, ZHAO Juan, LIANG Feng

《结构与土木工程前沿（英文）》 2008年第2卷第2期页码 184-188 doi: 10.1007/s11709-008-0029-3

摘要： Adopting the ASTM C666 quick freeze-thaw method, freeze-thaw tests with the number of freeze-thaw cycles being 0, 100, 150, 200, 250, and 300, were carried out on eighteen concrete prism specimens, the frost-resistant level of which, reaches D300 grade. The internal micro-structures of these specimens were observed by means of scanning electron microscopy (SEM) in order to detect damages caused by the freeze-thaw action. Afterwards these frozen-thawed specimens were tested on monotonic axial load; stress-strain testing curves after the freeze-thaw action were obtained. The testing results show that with the increasing time of freeze-thaw cycles, both the internal micro-structures and the basic mechanical parameters, including the ultimate bearing capacity, the Poisson ratio and the modulus of elasticity, degenerate in various degrees. Finally, stress-strain theoretical curvilinear equations and correlated parameters relating to the loss of relative dynamic modulus of elasticity were proposed. These results provide great reference for further research on the behavior and the calculation model of concrete structures in a freeze-thaw environment.

关键词： stress-strain theoretical freeze-thaw capacity reference eighteen concrete

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Stress-strain relationship of recycled self-compacting concrete filled steel tubular column subjected

Feng YU, Cheng QIN, Shilong WANG, Junjie JIANG, Yuan FANG

《结构与土木工程前沿（英文）》 2020年第14卷第3期页码 760-772 doi: 10.1007/s11709-020-0618-3

摘要： As a typical compression member, the concrete-filled steel tube has been widely used in civil engineering structures. However, little research on recycled self-compacting concrete filled circular steel tubular (RSCCFCST) columns subjected to eccentric load was reported. In this study, 21 specimens were designed and experimental studies on the stress-strain relationship of were carried out to study the mechanical behaviors. Recycled coarse aggregate replacement ratio, concrete strength grade, length to diameter ratio and eccentric distance of specimens were considered as the main experimental parameters to carry out eccentric compression tests. The corresponding stress-strain relationship curves were used to analyze the influence of concerned parameters on eccentric load-bearing capacity of RSCCFCST columns. The experimental results show that the strain of the eccentric compression stress-strain curves increase with the increase of recycled coarse aggregate replacement ratio and concrete strength grade. With increase of eccentric distance, the ductility of specimens increases while the bearing capacity decreases. Moreover, a phenomenological model of RSCCFCST columns is proposed, which exhibits versatile ability to capture the process during loading. The present study is expected to further understanding the behaviors and to provide guidance of RSCCFCST columns in design and engineering applications.

关键词： concrete filled circular steel tubular columns recycled self-compacting concrete eccentric compression recycled coarse aggregate replacement ratio stress-strain relationship