2000—2018年全球恐怖袭击事件危害评价及时空演变研究

本文运用模糊综合评价、K-Means聚类等方法,探讨了全球恐怖袭击事件的危害程度及时空演变特征。研究发现：①发生频次最高的年份为2010年和2011年,地区为南亚、中东和北非,袭击类型为轰炸/爆炸,国家包括印度、伊拉克、巴基斯坦等;②危害程度越高的恐怖袭击事件其集中化程度越高;一级、二级事件主要分布在中东和北非、南亚等地区,三级、四级和五级事件主要分布在南亚、中东和北非及东南亚等地区;③空间上大致分为中东、中亚和南亚三大活跃区,菲律宾群岛等九大次级活跃区,爪哇岛和苏门答腊岛等其他风险区。本文对理解恐怖主义特征以及全球共同抵制恐怖主义具有重要参考价值。     

我国精神损害赔偿数额评定因素之分析

本文依据2001年2月26日最高人民法院出台的《关于确定民事侵权精神损害赔偿责任若干问题的解释》条款,就我国精神损害赔偿数额评定所参考因素问题作一分析。     

Paper 4: Mechanical Properties of Bricks of the Coudenberg Archaeological Site in View of a Proper Conservation Strategy

Abstract

Archaeological sites are essentially submitted to decay phenomena inherent on their history as well as the environment to which they are exposed after excavation. The history of such archaeological sites is particularly related to their long-term underground conservation conditions during which they were subject to salt migration into the architectural remains. This paper describes the results of drill resistance measurements using a drill resistance measurement (DRMS) device to evaluate the mechanical damage resulting from salt crystallization pressures. Further tetraethoxysilane (TEOS) was applied on powdered bricks of often moist archaeological remains. It was noticed that TEOS serves as potential nutrient for present moulds. The mechanical consolidation effect was evaluated by comparing the hardness profiles after treatment with the reference ones. Bricks used for the construction of the Aula Magna, situated underneath the Royal Square, are characterized by severe patterns of fissures for which the damage diagnosis was built up.     

违约的精神损害赔偿

我国立法和司法实践长期拒绝违约责任中的精神损害赔偿,理论上固守于违约行为和侵权行为的立法界限,司法上用责任竞合理论解决此类纠纷。然而以侵权之诉追究违约行为人不利于受害人的保护,应当赋予受害人可以提起违约的精神损害赔偿。     

Taphonomy and Paleoichnology of Olduvai Hominid 1 (OH1), Tanzania

This paper presents a case study of the Late Pleistocene skeletal remains of Olduvai Hominid 1, which were unearthed in Tanzania. Excavated in 1913, this fossil shows severe damage due to subterranean termites (Insecta: Isoptera). By combining methods to quantify and locate traces on the skeleton with the study of the different taphonomic processes that altered the deposit, we demonstrate a non‐arbitrary pattern of termite alteration of the skeletal remains. These results shed new light on the possibility to reconstruct the original position of a skeleton in a deposit and the potential to infer the space of decomposition and past funerary practices. Copyright © 2017 John Wiley & Sons, Ltd.     

土质文物盐害中硫酸钠的研究——从微观到宏观

土遗址和壁画遗址可溶盐主要为NaCl和Na_2SO_4,其中Na_2SO_4是破坏程度最严重的盐。一般认为,硫酸钠只有在温度、湿度变化时才不稳定,才发生得失结晶水引起的晶型及体积变化。为研究土质文物盐害的形成机制及内在原因,调研了全国几处典型土遗址和壁画遗址的盐害状况并取样分析。分析发现:1)土遗址和壁画遗址中硫酸钠的形貌、结构是动态变化的(无论在任何极端干燥环境甚至真空条件下);2)环境因素如温度、相对湿度的变化只是加剧上述变化进程。硫酸钠结晶析出时,其体积膨胀约4倍。这一系列的过程,深刻影响着硫酸钠的相变复杂性和对依存土质文物本体的破坏性。本工作从微观和宏观两个层面探讨了这些发现,并通过不同盐分(不同浓度氯化钠、硫酸钠)侵蚀破坏模拟试验、不同温度条件下模拟试验、不同相对湿度下模拟试验,从宏观层面印证了上述微观机制在土遗址和壁画遗址本体的外在表现。本研究发现土遗址中硫酸钠的形貌、结构是动态变化的,该工作弥补了以往研究和认识上的局限。本研究将对阻止、延缓及预测土质文物盐害的发生、发展提供科学参考。     

STRUCTURAL REHABILITATION OF DAMAGED RC BUILDINGS AFTER THE 1 OCTOBER 1995 DİNAR EARTHQUAKE

This paper contains technical information related to the Dinar project for the rehabilitation of moderately damaged reinforced concrete buildings after the 1 October 1995 Dinar earthquake. The structural appraisal of the damaged buildings, analytical studies leading to decisions regarding structural rehabilitation or demolition, the supervision on site of the rehabilitation and the overall coordination of the project was entrusted to the Middle East Technical University Earthquake Engineering Research Center [METU-EERC] by the Turkish Ministry of Public Works and Settlement. The project involved the rehabilitation of 35 moderately damaged RC buildings with a total floor plan area of 22 000 square metres.     

FRAGILITY ASSESSMENT OF SLAB-COLUMN CONNECTIONS IN EXISTING NON-DUCTILE REINFORCED CONCRETE BUILDINGS

Fragility functions that estimate the probability of exceeding different levels of damage in slab-column connections of existing non-ductile reinforced concrete buildings subjected to earthquakes are presented. The proposed fragility functions are based on experimental data from 16 investigations conducted in the last 36 years that include a total of 82 specimens. Fragility functions corresponding to four damage states are presented as functions of the level of peak interstory drift imposed on the connection. For damage states involving punching shear failure and loss of vertical carrying capacity, the fragility functions are also a function of the vertical shear in the connection produced by gravity loads normalised by the nominal vertical shear strength in the absence of unbalanced moments. Two sources of uncertainty in the estimation of damage as a function of lateral deformation are studied and discussed. The first is the specimen-to-specimen variability of the drifts associated with a damage state, and the second the epistemic uncertainty arising from using small samples of experimental data and from interpreting the experimental results. For a given peak interstorey drift ratio, the proposed fragility curves permit the estimation of the probability of experiencing different levels of damage in slab-column connections.     

SEISMIC RELIABILITY ASSESSMENT OF EXISTING REINFORCED CONCRETE BUILDINGS

Structures designed according to earlier codes with inadequate seismic provisions have not performed satisfactorily during recent earthquakes. The seismic performance of an existing three-storey reinforced concrete building designed according to the 1963 ACI 313-63 is evaluated and compared to the performance of a similar frame designed according to current code provisions. Non-linear static and dynamic analyses of the reinforced concrete frames are conducted. In this study, a probabilistic approach is adopted where a large number of artificially generated ground motion records is used as input motion to the structure. The results of the analysis indicated the probability of various degrees of damage to be expected when the existing frame is subjected to different ground motion levels. This information is useful in the design of the required rehabilitation scheme to provide an identified level of protection.     

清宫流散书画损毁摭拾

作者辑录了清宫流散于外被损毁的书画名作,介绍了它们损毁的状