双通道离子色谱法测定一件陶罐表面结晶盐以及脱盐溶液中的阴阳离子

陶器由于受环境的影响,表面容易出现结晶盐。在保护修复陶器的过程中,脱盐是重要的保护程序之一。本工作主要研究了双通道离子色谱法测定一件陶罐表面结晶盐以及脱盐溶液中的7种阴离子和5种阳离子时,淋洗液浓度、流速对测定结果的影响。实验表明:淋洗液浓度和流速会影响各离子的分离和峰形。当碳酸钠~碳酸氢钠浓度为2.5~1.7mmol/L、流速为0.6m L/min,吡啶二羧酸~硝酸浓度为0.8~1.6mmol/L、流速为0.7m L/min时,各离子峰形好,分离时间适中,分离效果很好。精密度和回收率实验表明,该分析方法的准确度满足定量分析的要求。由此可见,用双通道离子色谱法可以快速、简便、准确地测定结晶盐的离子种类和含量,可以实时监测脱盐溶液中的离子含量能较好地反映器物的脱盐程度。     

如何编写大事记

本文结合审查第二轮部分市（县）志稿实践,从四个方面阐述大事记在志书中的作用及撰写大事记应该注意的问题。一、大事记在志书中的地位及其作用;二、大事记的收录标准与大事遴选;三、大事记的编纂体例;四、大事记事条的撰写及应该注意的问题。     

第二轮修志应重视和加强非物质文化遗产的收录

地方志是收录和记载非物质文化遗产的重要载体。本文结合第二轮修志工作,简要论述了地方志收录非物质文化遗产的内容、原则、形式和方法。     

中国朝鲜族在"兴边富民行动"中的发展

我国有约200万朝鲜族,绝大多数居住在东北三省,约63%的人又集中在中朝、中俄边境,他们中有不少人与朝鲜、韩国、俄罗斯、日本、美国等国家的朝鲜人保持着密切的联系。改革开放以来,特别是"兴边富民行动"实施以来,边疆地区的朝鲜族充分利用海外的广泛联系,发挥人缘、地缘、文缘优势,积极引进国外资金、技术、先进经营管理经验,促进对外贸易、对外劳务合作和边境贸易,并努力发展民族地区经济,在"兴边富民行动"中发挥了重要的作用。     

Experimental Studies and Vulnerability Assessment of Timber-Arched Lounge Bridges

ABSTRACT

There are many preserved timber-arched lounge bridges in China and some of these bridges are hundreds of years old. The woven arch is the main bearing structure of a timber-arched lounge bridge. Few studies still exist about woven arch mechanical performance, a fact that contributes to the improper repair. This article concerns the structural performance of the woven arch. The results of experimental studies on deformation, stress distribution, force-transferring mechanism, and failure modes were presented. Two woven arch models with and without П-shape braces under symmetrical load and asymmetrical load were investigated. The results indicated that the woven arch had high bearing capacity, especially under symmetrical load. The comparison of experimental results obtained for models with and without brace showed that braces modified the failure mechanism and increased the load carrying capacity and integrity. Based on the failure conditions observed experimentally, limit criteria were defined in order to facilitate vulnerability assessment of timber lounge bridges.     

从幕府到书院看乾嘉汉学大吏阮元的尴尬与无奈

阮元是乾嘉汉学的领袖人物。他组织起清代最大的学术幕府,创办诂经精舍和学海堂,开展声势浩大的学术活动,成绩卓著。然而在与幕宾相处、主持学术研究、领导学术流向、创办书院进行教育改革及实践的过程当中,阮元也有着鲜为人知的尴尬与无奈。这是整个清代学术及士人的真实写照。     

《左传》女性人物形象探析

《左传》是我国先秦时期重要的历史典籍之一,具有很高的文学价值。新时期以来,《左传》中女性人物形象受到研究者的广泛关注,但是对《左传》中女性人物形象的全面研究相对较少。本文拟对《左传》中出现的所有女性人物形象进行总结、归纳和分类,并对其中的典型人物形象展开讨论。     

岫岩"太平香"祭祖还愿仪式圣/俗性论析

烧"太平香"是流传于辽宁省岫岩满族自治县及周边地区的一种民间还愿类祭祖仪式,当地人简称其为"烧香".本文记录了这一民俗事象的仪式过程.在与萨满教仪式的比较中,从岫岩地区的族群发展史、"烧香"仪式的某些程序及服装器具的制作与使用等方面对其神圣/世俗性进行分析,得出:岫岩"烧香"祭祖还愿仪式是一种世俗性裹夹下的"神圣"仪式.     

晚清至民国徽州小农的生产与生活——对5本婺源县排日账的分析

The Pairizhang (day-to-day accounts) found in Huizhou were mostly written by the pupils in old-style private school. They seem similar to a dairy in some way with the activities of family members (mostly male) as the main contents. However, they differ from modern diaries in many ways. It was a common practice in Wuyuan County to keep day-to-day accounts in the late Qing Dynasty and the Republic of China. By analyzing the 5 accounts found there, many underlying facts can be revealed, such as the time allocation of the main labor force, the composition of the peasant’s family economy, the general situation of productive activity and the days and ranges of their outdoor activity, etc. All these findings can help us have a better understanding of the peasants’ life in Huizhou at that time. __________ Translated by Li Dan from Jindaishi Yanjiu 近代史研究 (Modern Chinese History Studies), 2008, (2): 119–124