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Journal of Central South University 2013年第5期20卷 1221-1225页

作者： M.A.Mellal S.Adjerid D.Benazzouz S.Berrazouane E.J.Williams Solid Mechanics and System Laboratory Faculty of Engineering Sciences (FSI)M'Hamed Bougara University Faculty of Engineering Sciences (FSI) M'Hamed Bougara University Decision Sciences College of BusinessUniversity of Michigan Industrial and Manufacturing Systems Engineering Department College of Engineering and Computer ScienceUniversity of Michigan

Nowadays, rapid technological progress influences the dependability of equipments and also causes rapid obsolescence. The mechatronic and electronic equipment components are mostly affected by obsolescence. A new challenger unit possesses identical functionalities, but with higher performances. This work aims to find the optimal number of components which should be replaced by new-type units, under budgetary constraints. In this work, the new challenger unit is characterized by lower energy consumption and the optimization steps are based on genetic algorithm (GA). The result shows the importance of this type of replacement in order to economize energy consumption and to deal with obsolescence.

关键词： obsolescence lower energy consumption mechatronic and electronic components genetic algorithm

An empirical research on the field of wireless charging based on patent life length

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High Technology Letters 2018年第1期24卷 95-102页

作者：施敏 Wang Juncheng Zhou Xiaodan Hu Yiyuan Zhao Zelong School of Information Management Wuhan University Wuhan 430072 P. R. China Institute of Scientific and Technical Information of Guangxi Nanning 530022 P. R. China Institute of Scientific and Technical Information of China Beijing 100038 P. R. China School of Information Resource Management Renmin University of China Beijing 100872 P. R. China

With the aid of patent life cycle theory,and from the perspective of patent life span,this paper choose the ‘times of citation-time sequence'data of patents as an observation index to research on related patents in the field of wireless charging by applying the adjusted ‘double-proportion'obsolescence method. The research reveals the rules of patent life span in the field of wireless charging,finding that the first 5 years since patents were authorized is the core period for the patents to play their full value,and also discovers the development law of merging technology patents.

关键词： life span of patent patent information 'double-proportion' obsolescence method

The management of water heritage in Portuguese cities:Recent regeneration projects in Évora,Lisbon,Braga and Guimarães

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Frontiers of Architectural Research 2022年第1期11卷 73-88页

作者： Celia López-Bravo JoséPeral López Eduardo Mosquera Adell Department of Architectural History Theory and CompositionUniversity of SevilleSevilleSpain

Given the cultural and environmental potential presented by historical water infrastructures in urban contexts,this article states the evidence of a not much documented urban phenomenon in Portugal,the refurbishment of water heritage protected areas motivated by European-based regeneration *** employing a case-study design,four good practices-placed inÉvora,Lisbon,Braga and Guimarães-are chosen to enlighten this growing and aware *** assets located there-theÁgua de Prata Aqueduct,theÁguas Livres Aqueduct,the Sete Fontes water-supply system and the Zona de Couros industrial area,respectively-are geographical,historical and culturally characterised,while the projects that concern them are documented by visiting the areas and analysing the available ***,open-data platforms and heritage protection decrees are processed to graphically code the topography,hydrology,urban land use,infrastructures,landmarks and protected areas,employing QGIS free software for Geographic Information *** a result,the four practices are documented,discussed and compared.A table assesses and summarises their pre-existing and currently added values and a series of diagrams illustrates the landscape changes *** graphics validate the practices and update the status of the assets,enhancing the rediscovery of the existing landscapes and showing the main challenges and future opportunities faced by these areas.

关键词： Heritage characterization Infrastructures Landscape obsolescence Urban planning Waterworks

Useful Life of Astrophysical Scientific Facilities

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World Journal of Engineering and Technology 2021年第4期9卷 804-815页

作者： Patricia Marquez Oibar Martinez Jose Miguel Miranda Department of Matter Structure Thermal Physics and Electronics Faculty of Physics Complutense University of Madrid Spain

Large-scale astrophysical facilities have become increasingly relevant in certain key areas of scientific research but typically require strong financial investments. It is, therefore, crucial to gain a deep understanding of what could be a foreseeable lifespan of a given instrument before providing the required fund to build it. In this paper, we intend to contribute to this understanding with a study of the lifespan of past, current and future observatories and telescopes. The methodology has been based on the compilation of relevant data from twenty telescopes, three of them mounted on space satellites and the other seventeen distributed worldwide. An analysis of the main limiting factors that affect the lifetime of an astrophysical facility is also presented.

关键词： Lifespan obsolescence Astrophysical Instruments Telescopes

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知识网络的演化（I）：增长与老化动态

知识网络的演化（Ⅱ）：增长老化与知识产生时点的关系

图书馆学情报学 2012年第1期

作者：马费成刘向

为了考察不同增长模式下知识网络的拓扑结构及知识节点的历时老化，建立了知识网络的增长模型。模型采用了泛增长函数的方式进行了一般的分析。数理分析和模拟仿真发现：当知识增长率为线性等收敛函数时，知识网络的度分布与增长模式无... 详细信息

为了考察不同增长模式下知识网络的拓扑结构及知识节点的历时老化，建立了知识网络的增长模型。模型采用了泛增长函数的方式进行了一般的分析。数理分析和模拟仿真发现：当知识增长率为线性等收敛函数时，知识网络的度分布与增长模式无关，且知识节点的历时被引是一直衰减的；而当增长率函数为发散性的指数函数时，知识节点的度分布指数较前者要小，节点的历时被引数则是单调上升的；增长速度越快，指数增长模式具有越平坦的度分布，知识的利用率越高，相反，收敛性的线性增长等在知识利用上分化则相对更大，知识利用率相对低些。

关键词：知识演化网络增长老化模型 Knowledge Complex networks Evolution obsolescence Model

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The Neue Nationalgalerie by Mies van der Rohe between Preservation and Minimal Improvement

图书馆学情报学 2012年第1期

作者：马费成刘向

针对知识老化与增长的关系及老化与知识产生的时间的关系问题，构建了知识的演化网络模型，提出了知识老化曲线形成的一种客观性的新解释。演化模型通过在无标度演化网络的基础上引入知识节点的logistic增长，对演化网络的拓扑结构和节... 详细信息

针对知识老化与增长的关系及老化与知识产生的时间的关系问题，构建了知识的演化网络模型，提出了知识老化曲线形成的一种客观性的新解释。演化模型通过在无标度演化网络的基础上引入知识节点的logistic增长，对演化网络的拓扑结构和节点的历时被连接数进行了数理分析和仿真实验。模型揭示了知识产生的时点与知识增长老化之间的关系：在所属学科的扩展期产生的知识节点历时被连接数先上升后下降，而在衰退期产生的节点的历时被连接数一直是衰减的；知识的利用效率随其所属知识领域的扩张而增加，随衰退而减少。

关键词：知识演化网络增长老化模型 Knowledge Evolution networks Growth obsolescence Model

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Journal of Civil Engineering and Architecture 2020年第4期14卷 226-232页

作者： Andrea Canziani Sara Di Resta Ministry of Cultural Heritage Activities and TourismDepartment ArchaeologyFine Arts and LandscapeGenoa 16126Italy Department of Architecture and Arts Iuav University of VeniceDorsoduro 2206Venice 30123Italy

The Neue Nationalgalerie(1968)is considered an icon of the 20th century and part of the legacy of Mies van der *** 50 years after its construction the building showed some physiological decay;however,it has been considered obsolete due to the changing standards of use and comfort of an international art gallery affected also by a growing flux of *** paper investigates the future of such an icon of modern architecture moving from some open issues of the intervention carried out by David Chipperfield started up in 2015 and now in an advanced *** refurbishment is pursuing the modernization of the building,but trying to match the historical values with the requirements of climate control and *** binomials memories/requirements and authenticity/form are at the base of the *** the intervention confirms the continuity of original use and it is aimed at keeping the image of the icon,it imposes transformations that belong to very different strategies,sometimes incompatible with the preservation of material meanings and *** restoration work on modern heritage outlines how new cultural and socio-economic needs confront themselves with respecting/reproducing the appearance of the monument.

关键词： Neue Nationalgalerie Mies van der Rohe modern architecture heritage authenticity obsolescence preservation improvement.

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计划报废的两面性

现代装饰（理论） 2011年第7期 188-188页

作者：李新宇汕头大学长江艺术与设计学院广东汕头515063

早在20世纪中前期的西方大规模生产时,计划报废(Planned obsolescence)这个设计概念就已经被提出,时至今日仍然在不断沿用和发展,这种涉入式的过期手段成为了二战以后西方国家在产品设计领域里的一个显著特点。作为一种设计现象,多角度... 详细信息

早在20世纪中前期的西方大规模生产时,计划报废(Planned obsolescence)这个设计概念就已经被提出,时至今日仍然在不断沿用和发展,这种涉入式的过期手段成为了二战以后西方国家在产品设计领域里的一个显著特点。作为一种设计现象,多角度认识计划报废,对指导设计具有重要的理论和现实意义。

关键词： Planned obsolescence 计划报废积极消极两面性设计伦理

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知识网络的演化（Ⅲ）：连接机制