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1.
长期以来文物保存环境一直受到人们的关注,文章着重论述了文物保存环境对文物的影响,并通过多个实例说明了文物保存环境的破坏给文物带来的种种损害,指出了整治文物保存环境和文物保护的重要性,为整治文物保存环境和文物保护提供了新的思路.  相似文献   

2.
文物保护就是采取管理与技术措施控制文物病害,减缓文物的劣化,保存文物所蕴含的价值信息,是一门应用性学科,长期以来,一直缺乏自己的基础理论,难以形成一门独立的学科.控制论和风险管理理论为研究文物保护提供了科学手段,基于文物保护学的特点,探讨了通过风险管理理论对文物的风险进行识别、评估、决策,采用控制论研究文物风险系统,进...  相似文献   

3.
环境问题与人为因素对文物的保护构成了威胁,本文简要讨论了文物保护的相关技术,并对工业计算机断层扫描技术及其在文物中的应用进行了分析,通过一个实例实现了文物的断层扫描与图像重建的应用过程,以达到文物保护与研究的目的.  相似文献   

4.
文物保护单位是我国对确定纳入保护对象的不可移动文物的统称。建立有针对性的文物保护单位安全防范系统风险评估模型,可以有效识别文物保护单位安防系统风险,及时采取应对措施,预防或降低文物保护单位的损失。在通用的风险评估方法基础上,结合文物保护单位特点,构建了文物保护单位安全防范系统风险评估模型。通过对文物犯罪司法案例分析,提出以分级量化方式确定风险可能性PA和文物损失后果C的方法,构建文物保护单位安全防范系统有效性指标体系和基于此指标体系的确定安防系统有效性概率PE的计算方法,提出针对所设计风险评估模型的文物保护单位安防系统风险评价等级。  相似文献   

5.
边质洁 《科技资讯》2014,(26):215-216
本文基于笔者从事文物保护的相关工作经验,以科学技术在文物保护中的运用为研究对象,笔者在研读大量相关文献的基础上,研究探讨了化学、生物等自然科学专业技术应用到文物保护中的现状和显著成果,笔者认为,现代的文保工作者继承前辈的丰富实践经验,利用现代分析仪器对文物加以检测,获取各项分析数据,通过丰富的经验解读分析数据,从中寻找最佳修复材料和保护方法,可以文物藏品进行更科学有效的保护修复。  相似文献   

6.
通过将现代信息技术与传统学科相结合发展新应用已然成为一种新的技术探索模式,信息网络化、虚拟技术等新技术对传统的陶瓷文物修复产生重要的影响和冲击。同时对陶瓷文物展示保护提供新的思考方向和科学手段,对传统文物保护和展示将产生深远的影响。  相似文献   

7.
王宜飞  赵雄伟  刘盼华 《江西科学》2021,39(6):1098-1102,1114
针对可移动文物保护修复工作的特点和需求,提出了基于知识库、VR等相关数字技术的可移动文物智能修复与管理平台,并进行了技术设计和实现,从可移动文物信息采集、病害评估、方案编制、修复实施、修复档案整理以及项目管理等方面为可移动文物保护修复工作提供较为全面的信息化支撑和智能辅助,有效提升了文物保护修复工作效率和水平.  相似文献   

8.
总结了石质文物病害机理研究及病害检测技术、石质文物清洗方法、石质文物保护材料、石质文物监测方法、现代化信息技术,在石质文物科技保护中的应用等方面的研究现状和取得的重要成就,并针对石质文物科技保护在保护材料、仪器设备等方面现存的问题提出了一些建议。  相似文献   

9.
曹晋 《创新科技》2015,(3):77-80
纸质文物由于其材质纤细娇弱,容易受环境因素发生病变,是文物中较难保存的藏品。本文主要针对河南省纸质文物保护工作现状及存在的主要问题进行了分析研究,并提河南省馆藏纸质文物保护的发展建议及对策。  相似文献   

10.
罗源县历史悠久、文物丰富,现有全国重点文物保护单位2处,县重点文物保护单位29处.该文就罗源县“十一五”期间文物工作主要成绩及存在的主要问题,提出文物保护工作建议,探讨新形势下文物开发和利用的一些思路及对策.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

20.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

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