Numerical model application for the restoration of the Racconigi Royal Park (CN, Italy)     

Paolo Cavagnero  Roberto Revelli   《Journal of Cultural Heritage》2009,10(4):514-519

After years of neglect and an almost complete lack of maintenance, the Racconigi Royal Park was in an inevitable and widespread state of decay. This decay also involved the waterways that were designed in the nineteenth-century by Xavier Kurten (1811–1840). The seasonal lack of water and the agricultural needs of the farms around the Park made it necessary, during the planning stage of the restoration project, to consider the practicability and the effectiveness of some measures that were conceived to optimize the operation of the restored waterways, without altering the historical structure of the system. The realization of a hydraulic numerical model of the system, which is briefly illustrated in the first part of this case study, resulted to be the most suitable tool to study different possible solutions of the problem. The model simulations in fact helped the restorers put into effect the right remedies to favour the correct flow of the water, to make the whole historical system more efficient and to make its future maintenance easier.  相似文献   

Conservation methods for unconventionally mounted works     

Zehua Yang 《文物保护研究》2014,59(5):S285-S286

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Conservation study of Ming dynasty silk costumes excavated in Jiangsu region,China     

Chen Wang 《文物保护研究》2014,59(5):S177-S180

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Installation of an environmental monitoring system in the Chapel of Our Lady Guia,Macao     

Zhong Tang  Shibing Dai 《文物保护研究》2014,59(5):S149-S152

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Pathways to unravelling the past: Conservation of silk borders of Buddhist paintings from China,Japan, Korea,and the Himalayas     

Jennifer Walker 《文物保护研究》2014,59(5):S173-S176

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Technical investigation of an eighteenth-century Chinese Imperial carved lacquer screen     

Václav Pitthard  Sabine Stanek  Martina Griesser  Christiane Jordan  Silvia Miklin-Kniefacz 《文物保护研究》2014,59(5):S124-S126

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Conservation of paper relics by electrospun PVDF fiber membranes     

《Journal of Cultural Heritage》2014,15(4):359-364

Electrostatic spinning (electrospinning) is a useful technique for producing ultrafine fibers with large specific surface areas and porous structures. Polyvinylidene fluoride (PVDF) is a chemically stable material with extraordinary properties. In this research, PVDF fiber membranes were produced directly on paper surfaces by electrospinning to protect brittle paper relics from environmental damage. Tensile strength and elongation tests for paper with and without the deposited PVDF membranes show that the PVDF fiber membranes can effectively protect paper under an externally applied force under both ambient and aging conditions. Water, insects, dust and mould can be isolated by the compact fiber structure while common gases can pass through freely to maintain a favorable environment for the paper relics.  相似文献   

吉安市战略性新兴产业发展现状及对策     

彭贵先  尹方 《科技广场》2011,(12)

本文介绍了吉安市培育和发展战略性新兴产业的基本现状和主要做法,分析了存在的主要困难和问题,重点阐述了推进吉安市战略性新兴产业发展的相应对策。  相似文献   

能量守恒下的噪声控制     

陈玉霞 《毕节学院学报》2008,26(4)

在噪声的控制中,从能量守恒分析到声强,考虑传播距离、介质吸收及阻挡层对声的穿透与吸收等因素,从而可采取相应的办法达到对噪声的控制。  相似文献   

保护管理权交易：非自然保护区所有的土地管理问题之探讨   总被引：1，自引：0，他引：1  

魏瑞芳  李文军 《资源科学》2005,27(6):95-102

土地权属不清是我国自然保护区普遍面临的重大问题之一,这给保护区的管理带来许多困难.而我国是一个正处于高速发展时期的人口大国,土地压力非常大,因此,约占国土面积14%的保护区不可能获得完全的土地权.本文在这样的背景条件下,探讨在没有土地使用权或仅拥有部分土地权的情况下,应用ConservationEasement(保护管理权交易)对自然保护区进行管理的可行性.本文以盐城自然保护区为研究地,采用问卷调查和实地访谈的方式,对保护管理权交易在生态、自然条件、生产方式转换及经济等方面的可行性进行了分析.鉴于篇幅所限,重点对经济可行性进行了分析和论证,得出在该地实施保护管理权交易需要一次性投入254×104元,每年投入203×104元.而经费可以通过当地财政、保护区管理局及国际保护组织等多渠道获得.基于上述分析,得出该管理模式对于解决没有土地权的非核心区管理具有可行性.继而对保护管理权交易模式可能遇到的长期资金来源、土地权属制度及税收制度等限制因素进行了探讨并给出了相应的解决建议.  相似文献