A Method for Selecting Ground Motions that Considers Target Response Spectrum Mean and Variance as Well as Correlation Structure

This study proposes a method for selecting ground motions from a ground motion library with response spectra that match the target response spectrum mean, variance, and correlation structures. The proposed method is conceptually simple and straightforward. In this method, a desired number of ground motions are sequentially selected from first to last. The accuracy and consistency of the proposed method are verified through comparisons of the ground motions selected using the proposed method with those selected using conventional methods. This study shows that the seismic responses of the frames vary according to ground motion selection and correlation structures.     

Firing temperature of a clay core sample in a bronze tripod from Daxinzhuang Site in China using TL techniques

In this paper, we studied the thermal history of a clay core sample from one leg of a bronze tripod unearthed at Daxinzhuang Site, Shandong, China. The properties of the luminescence signals of quartz depend on the maximum temperature at which the quartz was annealed in the past. We examined the feasibility of measuring the thermoluminescence (TL) sensitivity change of quartz for exploring the firing temperature of archaeological materials. The sensitization factor of the 110°C TL peak (S₂/S₁) and the ratio of the 210°C TL peak to the 110°C TL peak at different annealing temperatures were utilized to unveil the firing temperature in the clay core sample. The firing temperature of the clay core sample was approximately 700°C–800°C, proving the clay core has been fired. This result proved that the clay core has been fired by human agencies and indicated on the temperature of the clay core in drying and firing given by the foundry workers before the actual casting step.     

胡汉交融视角下唐代披袍女俑形象新探

唐代墓葬陪葬俑、石质葬具与壁画出现一些女性披袍形象,亦见于敦煌、新疆等佛教洞窟壁画,披袍形制、装饰展现出多元文化交融特征,属于广义胡服体系,在北朝至隋唐时期女性易装背景下,反映了这一时期女性身份与地位的变化、女性服饰中西域文化的影响以及胡汉交融之性别重构与意义。     

16世纪至20世纪60年代滇池沿岸的 低田与深水稻种植

明清以降,滇池在岁修制度下常年疏浚海口,水域范围基本稳定,但受季风气候影响,其水位存在明显季节性变化,夏秋上涨,冬春下降,主要表现为沿岸低田在雨季即周期性被湖水淹没的特点。随着滇池流域坝田开发趋于饱和,滇池沿岸低田的深水稻“水涨谷”,在明清之际逐步系统种植,实现滨湖低田稻作与滇池水位季节性变化的生态耦合。这种局面到20世纪60年代末彻底改变,入滇河道上游大小水库的修建,使滨湖低田逐渐干田化,水涨谷生长的水域环境发生变化。观察滇池水域环境与稻作生态互动的关系,发现当区域环境呈现出长时段的规律性变化,就可能变“害”为“利”,这是人与自然相处中适应并利用自然的智慧展现。     

对称赞语回应之“thank you”的研究

致谢作为一种和谐性的言语行为,本质上是礼貌的,与道歉,命令,祝贺和许诺一样,它与人们的日常生活密切相关。致谢同时又是我们日常生活中发生频率很高的一种言语行为。正确地表达致谢有着重要的社会价值。本研究从理论上增进了我们有关致谢言语行为的知识,从实践上可以帮助我们建立一个良好的人际关系和和谐的社会氛围。     

资源型城市旅游形象设计研究——以淮南市为例

资源型城市有其独特的发展规律。本文以淮南市为例,指出实施旅游形象设计对资源型城市的可持续发展具有重大意义,并通过对影响淮南市旅游形象主要因素的分析,运用旅游形象设计的理论和方法,构建了淮南市旅游形象识别系统。     

学术事功俱隆文章道德并富(下)——回忆先师顾廷龙先生

三 顾老是中国图书馆事业的前辈,德高望重,他一生辛勤从事图书馆事业.他是怎么会和图书馆结下不解之缘的呢?顾老在《纪念袁同礼先生百龄冥诞》一文中曾说:"一九二九年北平图书馆新馆落成,其址与北海相邻,美轮美奂,藏书丰富,编目和管理等均采用新法,与世界先进国家相应接,为我国第一所新型的图书馆.     

学术事功俱隆文章道德并富(上)——回忆先师顾廷龙先生

顾老走了,永远地走了.这是所有认识他和了解他的人十分遗憾的.顾老是1998年8月22日晚上9时6分病逝于北京人民医院的.24日晨9时(美国东部时间为23日晚9时)上海图书馆办公室即时将这个消息用电话通知了我,次日我即向哈佛燕京图书馆馆长请假,并向旅行社订购飞往北京的机票,赶在追悼仪式的前一天下午抵达北京.     

旅游行为意象图相关问题探讨

为了促进意象图在旅游中的理论及应用研究,分析了旅游行为意象图的相关概念,探讨了不同旅游时段的旅游行为意象图的形成过程;总结了旅游行为意象图的个性与共性,动态性与主观性、不完整性与不确定性,可操作性等特点;并以西安市旅游意象为实例,分析了旅游行为意象图构成要素和认知内容,认为旅游行为意象图对旅游行为的发生、旅游资源的评价、旅游规划和旅游行为空间的合理表达都有积极的作用。