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role of geometrical features in the architectural-structural interaction: Some case studies of the Iranianancient architecture

Maryam ZANDIYEHVAKILI, Isa HOJAT, Mehdi MAHMUDI

《结构与土木工程前沿（英文）》 2019年第13卷第3期页码 716-724 doi: 10.1007/s11709-018-0508-0

摘要： This research aims to enhance the interaction between a structure and its architectural form. Having a qualitative approach, the present work discovers some successfully used geometrical features of the Iranian ancient architecture in terms of the architectural-structural interaction. We define four qualitative criteria for this assessment, i.e., construction-ability, cost effectiveness, participation of the structure in fulfillment of the visual, and functional-semantic needs of the architectural form. For this purpose, two case studies including the Jamé Mosque of Isfahan and the Soltaniyeh building are investigated. The outcomes of this research help designers to not only design efficient structures by adapting non-load bearing elements with the general form of the structure, but also meet concepts such as the unity or perfectionism in the structure.

关键词： architectural-structural interaction geometrical features structure architectural form Iranian ancient architecture

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Scientific significance of ancient maps of Yellow River and Grand Canal for water conservancy in China

Xiaocong LI,

《结构与土木工程前沿（英文）》 2009年第3卷第4期页码 445-454 doi: 10.1007/s11709-009-0063-9

摘要： Based on the study of ancient maps preserved in China and abroad, the systematic nature and practical meaning of the maps of the Yellow River and Grand Canal is demonstrated. It is pointed out that the ancient maps not only record the spatial information of the established water conservancy engineering for river harnessing but also the management systems of the rivers in history. Besides, the maps provide abundant information on nature, humanity, and geography and possess high value in academic research and art appreciation.

关键词： information management established appreciation practical

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Advances in structural mechanics of Chinese ancient architectures

YU Maohong, ODA Yoshiya, FANG Dongping, ZHAO Junhai

《结构与土木工程前沿（英文）》 2008年第2卷第1期页码 1-25 doi: 10.1007/s11709-008-0002-1

摘要： Chinese ancient architectures are valuable heritage of ancient culture of China. Many historical building have been preserved up to now. The researches on the structural mechanics of ancient architectures show the different aspects of structure and mechanics. Systematical studies on the structural mechanics of ancient architectures have been carried out at Xi’an Jiaotong University since 1982. It is related with the need of repair of some national preservation relics in Xi’an. These studies include: 1) Ancient wooden structures including three national preservation relics Arrow Tower at North City Gate, City Tower at East City Gate, and Baogao Temple in Ningbao, Zhejiang province. 2) Ancient tall masonry building, the Big Goose Pagoda and Small Goose Pagoda in Xi’an. 3) Mechanical characteristics of ancient soil under foundation and city wall; the influence of caves in and under the ancient City Wall on the stability of the wall. 4) The typical Chinese ancient building at the center of city: the Bell Tower and Drum tower. 5) The behavior of Dou-Gong and Joggle joint of Chinese ancient wooden structure. 6) The mechanical behavior of ancient soils under complex stress state. A new systematical strength theory, the unified strength theory, is used to analyze the stability of ancient city wall in Xi’an and foundation of tall pagoda built in Tang dynasty. These researches also concern differential settlements of Arrow Tower and resistance to earthquake of these historical architecture heritages. Some other studies are also introduced. This paper gives a summary of these researches. Preservation and research are nowadays an essential requirement for the famous monuments, buildings, towers and others. Our society is more and more conscious of this necessity, which involves increasing activities of restoration, and then sometimes also of repair, mechanical strengthening and seismic retrofitting. Many historical buildings have in fact problems of structural strength and stability; the need for further studies on structural mechanics and materials is definitely growing.

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In quest of the origin of ancient northern city of China: An implication from the Book of Odes

DAI Fudong

《结构与土木工程前沿（英文）》 2007年第1卷第4期页码 389-392 doi: 10.1007/s11709-007-0052-9

摘要： Sorting out some paragraphs in (collection of the earliest poetry in China), this paper makes analysis of the formation, construction process and technology of the ancient northern city of China. Relevan

关键词： analysis construction formation collection paragraphs

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中国古代的矿物加工技术——传承与发展

王淀佐,姚国成

《中国工程科学》 2009年第11卷第4期页码 9-13

摘要：

介绍了中国古代的矿物加工技术，包括早期的石器和陶瓦制作，中国先民使用矿物制作器件，古代铁矿的矿冶加工利用，古代的湿法提铜，古代重选淘洗技术的使用和记述，古代的浮选技术，古代铜、铁矿冶生产规模等；也简要阐述了近现代中国选矿工业的兴起与科技发展，总结归纳了现代矿物加工科学技术的创新成就。

关键词：中国古代的矿物加工技术传承与发展

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Structural synthesis of ancient Chinese foot-operated silk-reeling mechanism

Kuohung HSIAO, Yuhsun CHEN, Hongsen YAN,

《机械工程前沿（英文）》 2010年第5卷第3期页码 279-288 doi: 10.1007/s11465-010-0101-2

摘要： This work synthesizes the structures of the foot-operated silk-reeling mechanism, which was vaguely depicted in many literatures in ancient China. Based on the analysis of the mechanism, the structural characteristics and design constraints of the mechanism with indeterminate links and joints are concluded. Then, according to the concepts of generalization and specialization subject to the concluded design constraints, all feasible structures of the mechanism that met the technological standards of the subject’s time period are reconstructed. This reconstruction process provides a logical foundation to better understanding, clarification, and suggestions for the issue of ancient mechanical drawings with indeterminate links and joints.

关键词： silk-reeling mechanism structure of mechanism reconstruction design history of machinery

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Rolling-element bearings in China: From ancient times to the 20th century

Lie SUN,Ang LI

《机械工程前沿（英文）》 2016年第11卷第1期页码 33-43 doi: 10.1007/s11465-016-0373-2

摘要：

The development of rolling-element bearings in China has spanned a long period. Based on several typical and important cases, the present article reconstructs the history of rolling-element bearings in China by dividing it into four stages according to the various characteristics of the bearings. The first stage represents the origin of rolling bearings in China, which remains controversial because of several suspected races and cages that were likely the components of bearings more than a millennium ago. At the second stage, a type of simple roller bearing was used for astronomical instruments not later than the 13th century based on clear philological and physical evidence. A similar bearing was also applied to an abridged armillary in the 17th century. Another type of spherical thrust bearings with rolling elements, which is a key component of a traditional Chinese windmill, could support a rotating shaft that moves rotationally and at an angle. At the third stage, the Chinese began studying and using the so-called European-style bearing since the 17th century. Moreover, over the last 100 years, the modern rolling bearing industry was gradually established in China, particularly because of the technology transfer from the Soviet Union in the 1950s. At the fourth stage, the Chinese government initiated the relatively rapid development of bearing technology. The government launched the “bearing movement” from the 1950s to the 1960s to establish the modern bearing industry and to promote rolling bearings as replacement for traditional sliding bearings. Furthermore, a number of large professional factories and institutions in China have continually introduced advanced technology and equipment. At present, these companies and institutions play a significant role in the international bearing industry.

关键词： bearing movement rolling-element bearing China early rolling bearings technology transfer

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Animage-based approach to the reconstruction of ancient architectures by extracting and arranging 3D

Divya Udayan J,HyungSeok KIM,Jee-In KIM

《信息与电子工程前沿（英文）》 2015年第16卷第1期页码 12-27 doi: 10.1631/FITEE.1400141

摘要： The objective of this research is the rapid reconstruction of ancient buildings of historical importance using a single image. The key idea of our approach is to reduce the infinite solutions that might otherwise arise when recovering a 3D geometry from 2D photographs. The main outcome of our research shows that the proposed methodology can be used to reconstruct ancient monuments for use as proxies for digital effects in applications such as tourism, games, and entertainment, which do not require very accurate modeling. In this article, we consider the reconstruction of ancient Mughal architecture including the Taj Mahal. We propose a modeling pipeline that makes an easy reconstruction possible using a single photograph taken from a single view, without the need to create complex point clouds from multiple images or the use of laser scanners. First, an initial model is automatically reconstructed using locally fitted planar primitives along with their boundary polygons and the adjacency relation among parts of the polygons. This approach is faster and more accurate than creating a model from scratch because the initial reconstruction phase provides a set of structural information together with the adjacency relation, which makes it possible to estimate the approximate depth of the entire structural monument. Next, we use manual extrapolation and editing techniques with modeling software to assemble and adjust different 3D components of the model. Thus, this research opens up the opportunity for the present generation to experience remote sites of architectural and cultural importance through virtual worlds and real-time mobile applications. Variations of a recreated 3D monument to represent an amalgam of various cultures are targeted for future work.

关键词： Digital reconstruction 3D virtual world 3D spatial components Vision and scene understanding

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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

《机械工程前沿（英文）》 2009年第4卷第2期页码 147-152 doi: 10.1007/s11465-009-0025-x

摘要： Based on the analysis of the principle and flame movement of a pipe cutting machine tool, a retrofit NC flame pipe cutting machine tool (NFPCM) that can meet the demands of cutting various pipes is proposed. The paper deals with the design and implementation of an open architecture CNC system for the NFPCM, many of whose aspects are similar to milling machines; however, different from their machining processes and control strategies. The paper emphasizes on the NC system structure and the method for directly creating the NC file according to the cutting type and parameters. Further, the paper develops the program and sets up the open and module NC system.

关键词： flame pipe cutting flame incision tracks CNC open architecture CNC system

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Modular architecture model of CSCD system

Hongxue XU, Hong ZHENG, Xiuying GUO

《机械工程前沿（英文）》 2010年第5卷第4期页码 470-475 doi: 10.1007/s11465-010-0119-5

摘要： A modular architecture model of a computer-supported collaborative design (CSCD) system is proposed on the basis of the hierarchical structure characteristics of a distributed collaborative design system and advanced component object technology. The model mainly regards the module as the core organizing and managing design objects and uses the common object request broker architecture (CORBA) specifications as an interactive platform to achieve object communication. The browser/server computing model deals with the remote heterogeneous collaborative design problem. Product design strategies and mechanisms for collaborative design are separated to facilitate the application of distributed collaborative design environment for quick implementation. The open design framework for CSCD system developers can support the implementation of distributed collaborative design to improve product design speed and reduce product development time. The modular CSCD system (MCSCDS) model and its implementation are achieved in the modular CSCD, a prototype system.

关键词： computer-supported cooperative work (CSCW) computer-supported collaborative design (CSCD) distributed system component object technology modular architecture model

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Windmills: Ancestors of the wind power generation

Cesare ROSSI, Flavio RUSSO, Sergio SAVINO

《机械工程前沿（英文）》 2017年第12卷第3期页码 389-396 doi: 10.1007/s11465-017-0414-5

摘要：

A brief description of the windmills from the second millennium BC to the Renaissance is presented. This survey is a part of several studies conducted by the authors on technology in the ancient world. The windmills are the first motor, other than human muscles, and are the ancestors of the modern wind turbines. Some authors’ virtual reconstructions of old windmills are also presented. The paper shows that the operating principle of many modern machines had already been conceived in the ancient times by using a technology that was more advanced than expected, but with two main differences, as follows: Similar tasks were accomplished by using much less energy; and the environmental impact was nil or very low. Modern designers should sometimes consider simplicity rather than the use of a large amount of energy.

关键词： windmills ancient machines history of windmill

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2017年度土木、水利与建筑工程前沿

土木、水利与建筑工程项目组

《全球工程前沿》 2017年第1卷第1期页码 125-151

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ROLE OF NITROGEN SENSING AND ITS INTEGRATIVE SIGNALING PATHWAYS IN SHAPING ROOT SYSTEM ARCHITECTURE

《农业科学与工程前沿（英文）》 2022年第9卷第3期页码 316-332 doi: 10.15302/J-FASE-2022441

摘要：

● The Green Revolution broadened the trade-off between yield and nitrogen-use efficiency.

关键词： Nitrogen root system architecture phytohormone crosstalk nitrogen-use efficiency breeding strategy

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Towards a next-generation production system for industrial robots: A CPS-based hybrid architecture for

Qingmeng TAN, Yifei TONG, Shaofeng WU, Dongbo LI

《机械工程前沿（英文）》 2020年第15卷第1期页码 1-11 doi: 10.1007/s11465-019-0563-9

摘要： Given the multiple varieties and small batches, the production of industrial robots faces the ongoing challenges of flexibility, self-organization, self-configuration, and other “smart” requirements. Recently, cyber physical systems have provided a promising solution for the requirements mentioned above. Despite recent progress, some critical issues have not been fully addressed at the shop floor level, including dynamic reorganization and reconfiguration, ubiquitous networking, and time constrained computing. Toward the next generation production system for industrial robots, this study proposed a hybrid architecture for smart assembly shop floors with closed-loop dynamic cyber physical interactions. Aiming for dynamic reorganization and reconfiguration, the study also proposed modularized smart assembly units for the deployment of physical assembly processes. Enabling technologies, such as multiagent system (MAS), self-organized wireless sensor actuator networks, and edge computing, were discussed and then integrated into the proposed architecture. Furthermore, a multijoint robot assembly process was selected as a target scenario. Thus, an MAS was developed to simulate the coordination and negotiation mechanisms for the proposed architecture on the basis of the Java Agent Development Framework platform.

关键词： cyber physical system robot assembly multiagent system architecture

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Architecture design of Exit-Entry Administration Building of Shanghai Municipal Public Security Bureau

JIANG Limin, JIANG Du

《结构与土木工程前沿（英文）》 2007年第1卷第2期页码 234-239 doi: 10.1007/s11709-007-0029-8

摘要： In retrospect of the architecture design of Exit-Entry Administration Building of Shanghai Municipal Public Security Bureau, this paper elaborates on the architect s pursuit of the symbol of the image, the fluidity of the space and the sequence of the function. It promotes a case which deals with the harmony of the architecture individuality and the urban space commonness in city center.

关键词： commonness retrospect sequence architecture individuality architect