侯仁之 经世致用的学术人生

"我作为一个青年学生对当时称作文化古城的北平,心向往之,终于在一个初冬的傍晚,乘火车到了前门车站。当我在暮色苍茫中随着拥挤的人群走出车站时,巍峨的正阳门和浑厚的城墙蓦然出现在我眼前。一瞬之间,我好像突然感到一种历史的真实。从这时起,一粒饱含生机的种子就埋在了我的心田中。在相继而来的岁月里,尽管风雨飘摇,甚至狂飙陡起,摧屋拔木,但是这粒微小的种子,却一直处于萌芽状态,把我引进历史的殿堂。"——侯仁之     

Study on Low-Frequency Characterizations of Pulse-Type Ground Motions through Multi-Resolution Analysis

This article makes an attempt to investigate the low-frequency characterizations of pulse-type ground motions through ground motion components instead of original records. A decomposed method based on multi-resolution analysis is introduced in this article. The accuracy and validity of the method is tested in frequency domain, time domain and dynamic response. A dataset of 398 low-frequency components is obtained after the decomposition of 91 typical pulse-type records. A probabilistic model to describe the proportion of low-frequency components in corresponding original ground motions is established. At last, the decomposed method is used to investigate the impulsive characterizations of pulse-type ground motions.     

Performance-Based Seismic Assessment of Superelastic Shape Memory Alloy-Reinforced Bridge Piers Considering Residual Deformations

The application of superelastic Shape Memory Alloy (SMA) reinforcement in plastic hinge regions of bridge piers has been proven to reduce the residual displacement after a strong shaking owing to its unique shape recovery characteristics; however, the maximum deformation of the piers could increase due to the relatively lower modulus of elasticity of SMA bars and lower hysteretic energy dissipation capacity. In this context, this article applies a recently formulated probabilistic performance-based seismic assessment methodology that considers both the maximum and the residual deformation simultaneously to evaluate the performance of SMA reinforced bridge piers.     

我国墓葬壁画的保护方法

壁画的发展与不同民族在各个历史时期的生活习俗、宗教、哲学、美学观念等紧密相连。同时,壁画的制作也与当时社会的政治、经济、文化、技术发展水平相适应,因此古代壁画极具历史、艺术、科学技术价值。墓葬壁画出现并最终形成一种丧葬文化现象是在汉代。汉代墓葬壁画自西汉前期形成以后,不断发展演变并形成了一套非常系统完整的体系,表达了深邃而复杂的信仰和丧葬观念,丰富和发展了中国古代绘画的造型技巧和艺术表现形式,因此墓葬壁画在早期绘画史和思想史上都占有非常重要的地位。本研究对发表在《考古学报》、《考古与文物》等十余种期刊自创刊至2015年的有关墓葬壁画方面的资料进行了系统整理,据此研究了我国墓葬壁画的分布区域及其特征,总结墓葬壁画的保护模式与方法,并就墓葬壁画保护的研究方向提出建议。     

养心殿正殿外檐窗罩海墁彩画年代考证及其工艺特征

故宫博物院养心殿正殿保留了明代嘉靖年间至清代末期多种类型的彩画遗迹,其中正殿东暖阁后檐东西明瓦窗罩和梅坞西窗罩绘制了海墁彩画,与整体区域的和玺彩画、旋子彩画风格迥异。作者通过实地勘察、科学检测分析并结合历史文献,考证了养心殿正殿外檐窗罩海墁彩画遗存的工艺和材料特征及其确切年代,揭示了彩画所折射出的皇帝、太后的审美喜好。     

布哈林《历史唯物主义理论》在20世纪30年代中国的传播与理论扬弃北大核心CSSCI

20世纪30年代是近代中国大量译介国外各种唯物史观理论书籍的时期,一本多译的情况比较普遍。布哈林《历史唯物主义理论》一书便是其中中译本较多的著作。民国时期《历史唯物主义理论》多种译本的广泛流行,对传播历史唯物主义理论起到了积极作用。但是,时人注意到布哈林的理论中存在机械性等问题,故在将其作为知识资源时,逐渐扬弃之。深入考察《历史唯物主义理论》一书在20世纪30年代中国的译介、传播和理论扬弃,可以一窥民国时期国外同类理论著述影响中国思想界、学术界的复杂面相。研究唯物史观在近代中国的构建,不仅应梳理理论内在的演变逻辑,也须梳理其文本传播的演进脉络。在此基础上,对唯物史观理论中国化的具体历程,则会有更深入的认识。     

基于旅游资源“公地悲剧”的乡村旅游发展模式研究——基于河北省乡村旅游实地调查

乡村旅游资源的公共产品特性使得乡村旅游开发中"公地悲剧"成为普遍现象,影响了乡村旅游的可持续发展。通过对河北省乡村旅游资源开发的实地调查分析各地区旅游资源开发的现状,利用博弈模型分析"公地悲剧"产生的原因,并探讨如何利用村民在集体联合组织约束下的行为选择来解决"公地悲剧"问题。最后,论文指出应组建乡村旅游联合组织,规范组织行为并健全农村环境保护法规以克服"公地悲剧"问题。     

Characterization of dyes in ancient textiles from Yingpan,Xinjiang

In this paper we analyzed the natural dyes in well-preserved, ancient textiles from Yingpan, an important archaeological site on the Silk Road, using high-performance liquid chromatography with diode array and mass spectrometric detection. Dyes were removed from textile fibers using a soft extraction method (pyridine, water and oxalic acid). Two species of madder-type plants, Rubia tinctorum and Rubia cordifolia were identified as the dye sources in red and brown samples. We also were able to detect unusual flavonoid glycosides in yellow and green woolen yarns, although we have not been able to pinpoint with certainty a specific plant that may have been used to produce this dye(s). On the other hand, we found that yellow and green silk threads had been colored with protoberberine-type dyes, probably obtained from species of cork tree, Phellodendron spp., and/or other protoberberine producing plant. We propose that the textile dyes found at Yingpan reflect a merging of Eastern and Western practices and technologies during the 800-year period (206 BCE–618 CE) encompassing the early years of the Silk Road.     

《阅微草堂笔记》中的杀生故事

《阅微草堂笔记》中有十余则笔记和杀生有关,从这些笔记中可看出纪昀对屠宰耕牛持坚决反对态度。对其他动物,则既不反对杀生,又反对过度杀生。纪昀形成这种观点既是受到佛教思想的影响,更是受到儒家思想的影响。他创作这些笔记的目的是用因果报应的方式劝戒人心,以弥补法律实施上所存在的不足,维护封建伦理道德,但其中也包含着劝善惩恶的朴素思想。