Unusual Overshooting in Steady-state Response for Structure-dependent Integration Methods

It is numerically illustrated that an unusual overshooting phenomenon might occur in the solution of a forced vibration response if a structure-dependent integration method is applied to conduct the analysis, such as Chang explicit method [2002] and CR explicit method [2008]. This overshooting may occur in the steady-state response of a high frequency mode and it becomes significant as the natural frequency of the mode increases. This unusual overshooting behavior can be successfully detected by using a local truncation error derived from a forced vibration response rather than a free vibration response. A missing loading term in the difference equation for displacement increment is responsible for this unusual overshoot. It is analytically and numerically verified that the unusual overshooting behavior will automatically disappear after introducing the missing loading term into the difference equation for displacement increment.     

田螺山遗址古菱角埋藏环境调查与保护对策的初步研究

本文运用多种化学分析方法分析了浙江省田螺山遗址的地层土壤和地下水环境,得出了不同地层中主要元素的分布规律：再对古菱角外壳遗存和现代菱角外壳进行扫描电镜和元素分析,总结古菱角经长期埋藏后,外壳结构和化学元素的变化规律：最后初步探索古菱角类植物遗存的科技保护时策。     

浙江越窑青瓷标本信息数据库管理系统的设计与实施

对文物标本进行系统分析归纳是传统工艺研究的必要途径,为实现越窑青瓷标本资料的资源共享,提高实验室工作效率,实现分析数据的科学管理,本研究开发设计了“浙江越窑青瓷标本信息数据库管理系统”.该系统基于B/S结构模式,以浙江省博物馆陶瓷标本中心的各类越窑瓷片标本来源、形态、化学成分、物理性能、显微结构、制作工艺等相关信息数据为基础,采用Wi ndows平台,以Visual Studi0 2010为开发环境,结合ASP.NET 4.0框架以及SQL Server数据库技术而构架.经过系统测试和实际运行证明,此管理系统具有良好的应用界面,交互性强,运行稳定,数据处理方便等优势,对实现古陶瓷研究信息资源共享,全面开展越窑青瓷的科学化研究提供了一个良好的数据平台.     

REVISITING PLATFORM MOUNDS AND TOWNHOUSES IN THE CHEROKEE HEARTLAND: A COLLABORATIVE APPROACH

Abstract

This article describes the development and initial results of the Western North Carolina Mounds and Towns Project, a collaborative endeavor initiated by the Tribal Historic Preservation Office of the Eastern Band of Cherokee and the Coweeta Long Term Ecological Research Program at the University of Georgia. The goal of this project is to generate new information about the distribution of late prehistoric mounds and historic period townhouses in western North Carolina. This ongoing research has produced updated location and chronological data for 15 Mississippian period mounds and historic Cherokee townhouses, and led to the discovery of a possible location for the Jasper Allen mound. Using these new data, I suggest that David Hally's model for the territorial size of Mississippian polities provides a useful framework for generating new research questions about social and political change in western North Carolina. I also posit that the cultural practice of rebuilding townhouses in place and on top of Mississippian period platform mounds, a process that Christopher Rodning describes as “emplacement,” was common across western North Carolina. In terms of broader impacts, this project contributes positively to the development of indigenous archaeology in the Cherokee heartland.     

Organisational Needs and Priorities of Heritage Areas in the USA

Academics and practitioners alike know relatively little about the core competencies that are transferable from one heritage-area initiative to another. Often those new to the field have had to look to consultants or peers for advice regarding the essential core competencies needed to make their emerging organisations a success.This research surveyed the executive directors of the known universe of 154 heritage areas in the USA for the purposes of identifying the essential core skills they feel are needed to create and sustain a multi-jurisdictional heritage-tourism initiative. In addition, the importance-performance methodology employed in the survey instrument made it possible to assess their critical needs and priorities for training. Results of this study contributed to the design of the Heritage Development Institute, recently created to serve the executive staff of the nation's heritage areas at the College of Charleston on behalf of the Alliance of National Heritage Areas (www.cofc.edu/~heritage).     

秦陵7号坑铜水禽彩绘保护及分析

K0007号陪葬坑出土了一批青铜水禽,在其中发现了少量残存的彩绘。本文从铜禽彩绘的保护、清理、彩绘颜料分析和彩绘施彩工艺分析等方面对铜水禽彩绘进行了分析研究。     

评“分析马克思主义”及其《新论》

分析马克思主义是马克思主义在当代西方资本主义社会的一种新的发展形式,是西方分析哲学、经验主义的社会科学以及新古典经济学的方法运用于马克思主义理论研究的产物。与传统西方马克思主义相比,这种新的现象有着自身的特点;《分析马克思主义新论》是分析马克思主义者的最新力作,既体现了对马克思主义的一种发展,同时也存在着某些问题和不足。对于这种新现象及《分析马克思主义新论》一书中存在的理论问题的剖析,有利于我们把握当代马克思主义发展的正确方向,坚定马克思主义的科学立场。     

当"石器研究"成为一门专业:王幼平著《石器研究:旧石器时代考古方法初探》评介

石器研究已经成为史前考古中相当专门的领域,西方学术界许多最具影响的入门指南一直未能在中国得到重视。近年中国旧石器时代考古学者中常有一些有关石器研究基本概念的争论,一方面显示出学界对于石器研究规范化的热情,另一方面也说明中国旧石器研究在基础方法论方面还亟待加强。王幼平著《石器研究:旧石器时代考古方泫初探》是由中国学者撰写的第一部系统介绍石器研究基本方法的著作,在中国旧石器考古学研究史上具有重要意义。     

定边郝滩东汉壁画墓绿色底层颜料分析研究

本研究以定边郝滩东汉壁画墓中绿色底层为研究对象,采用偏光显微镜(PLM)、带能谱的扫描电子显微镜(SEM/EDS)、X射线衍射仪(XRD)和拉曼光谱(RS)分析了绿色底层的成分与物相,同时和四种已知国外绿土相比较,得出绿色底色为绿土,对其进行深入分析研究以期为考古学和后期文物保护工作提供科学信息。     

The Airfall-pollen Budget of Archaeologically Important Caves: Creswell Crags, England

This paper investigates fundamental taphonomic issues for palynologists working on archaeologically important cave deposits—the extent to which the pollen and spores reaching the accumulating sediment surfaces reflect the vegetation in cave entrances, or reflect the more regional environments beyond the caves. The study sites were four adjacent caves at Creswell Crags, near Sheffield, England—Church Hole, Dog Hole, C7 and Robin Hood's Cave. The compositions of the pollen and spore assemblages caught in the caves over a one year period were shown to reflect the vegetation in the cave mouths and the wider area beyond. The AP:NAP ratio in the assemblages trapped in the caves corresponded with the proportions of woodland and open ground within a 5 km radius of the site. Comparatively high representations of fern spores in caves were a persistent feature and were attributed to the interactions of habitat, distribution and taphonomic processes—(i) the abundance of ferns in cave mouths, and (ii) the effects produced by a combination of diurnal micro-climatological process interacting with diurnal variations in spore production in the cave entrance. In two caves—Church Hole Cave and Dog Hole Cave—the numbers of grains caught appeared to decline with increasing distance into the cave. In Cave C7, the numbers of grains caught increased towards the back of the cave. The number of grains caught appears to be a principal determinant of the number of plant taxa identified. There were no clear relationships between the presence of a "flue" effect in the cave and the presence of an increase or a decrease in the number of grains caught with changing distance into the caves. It is concluded that as long as account is taken of the particular topographic, microclimatic and taphonomic conditions in these caves, it is possible to infer the character of the vegetation beyond their confines, from the airfall pollen and spores trapped with them at the cave sediment surface.