Discovery of Iron Grapnel Anchors in Early Modern Ryukyu and Management of Underwater Cultural Heritage in Okinawa,Japan

The Yarabuoki underwater site contains seven iron grapnel anchors and Early Modern Okinawan ceramic jars and is dated to the 16th–19th centuries. The site lies at a depth of 12–32 m off the western coast of Ishigaki Island in Okinawa, Japan. Based on underwater archaeological and broadband multibeam surveys, as well as historical research of the artefacts and Early Modern Ryukyuan shipping, we discuss the possible anchor and vessel types in Ryukyu and Eastern Asia in Early Modern times. We also discuss the efficacy of low‐cost ROV for assisting surveys in shallow‐water environments and the value of educational programmes for promoting the management and conservation of underwater cultural heritage.     

文化信息的空间扩散分析

本文从信息论的角度探讨了文化的空间扩散过程;初步探讨了文化扩散的信息内涵,提出了文化源地、文化宿地、文化扩散媒介等文化信息扩散要素,简要地分析了文化信息扩散的类型;着重探讨了影响文化信息扩散的作用因素,分析了环境约束,区域引力,空间距离、地形摩擦、文化惯性和文化革新等6个因素的作用。     

硼氢化钾对于氧化纸质文物的还原作用研究

纸质文物的病害主要来自纤维素的水解和氧化。对于纸质文物的保护通常采取脱酸处理,但对于纤维素的氧化病害并没有起到作用。本文提出在纸质文物的保护处理中加入硼氢化钾作为还原剂,重点作用于纤维素氧化造成的病害。通过还原作用使纤维素分子链上的氢键作用得以恢复,进而达到提高纤维自身强度的目的。本文开展一系列实验研究,通过pH值、色差的改变,以及羰基含量变化和纤维素结晶度对研究硼氢化钾的还原作用效果进行综合评价。     

绍兴西施山遗址出土文物研究

近年来,浙江绍兴西施山遗址出土了一大批春秋战国时期的遗物,据不完全统计,总数不下五六百件。绍兴市博物馆征集到的器物共有200余件,有青铜器、铁器、原始瓷器、陶器等。其中青铜器包括礼器、农具和兵器,数量众多,类型丰富,制作精良,为本遗址最重要的发现。铁器的出土则表明越国在战国中期前后已有了冶铁业,标志着手工业的发达和生产力的进步。同时,众多春秋战国器物的出土还证明了西施山是越国的重要遗址。     

A Comparison Study of Middle Bronze Age II Daggers and Their Rivets as a Tool for a Better Understanding of Their Production

The Middle Bronze Age II is a period during which there exists a contemporaneous usage of arsenic copper and tin bronze for metal weaponry production. In order to learn more about the alloys used in this period, the blades and rivets from 65 daggers of two significantly different types, which were discovered at the Rishon LeZion (RL) cemetery, Israel, were tested by the non‐destructive method of X‐ray fluorescence (XRF). The results reveal new knowledge of the alloys selected for dagger and rivet production, both of which represent fine examples of the Middle Bronze Age II Southern Levant in metal industry.     

重点开发区域工业空间格局、集疏差异及影响机制——以福建沿海地区为例

以福建沿海地区为例,利用微观工业企业数据库,探究了重点开发区域工业空间演化、产业集疏差异及其形成机制。研究表明：福建沿海地区工业发展水平大幅提升且空间差距逐渐缩小,空间形态向成熟的产业带演进,产业空间分工表现出同质化特征;不同类型行业的空间集疏过程呈现出显著差异,其中资本密集型产业表现为持续扩散趋势;地形和生态可占性、资源环境承载力对产业空间形态具有基础性作用,地区经济技术是产业空间格局演化的重要驱动力,临港区位和交通条件改善不断促进产业发生空间集聚与扩散,区域发展战略以及产业政策为工业空间调整提供了具体方向。研究结论可为重点开发区域工业空间布局优化提供一定的借鉴。     

馆藏文物保护中数字建模技术应用研究

随着三维扫描技术的发展,三维扫描技术的应用范围逐步扩大。在文物保护领域,三维扫描技术也有着重要的应用。同时,作为博物馆数字化的一个重要组成部分,馆藏文物保护与修复的数字化技术也在不断深入。因此,首都博物馆文物保护分析实验室应用三维激光扫描技术开展了一系列在文物保护分析过程中的数字建模工作,特别是对文物修复和复制的辅助作用进行了有益的尝试。针对工作过程中遇到的技术难点诸如偏色、背景干扰等进行了分析,并提出解决办法,旨在供文物保护领域和计算机技术领域共同探讨研究。     

新疆草原文化区域系统研究

新疆草原文化是古代新疆草原游牧民族创造的一种游牧文化,其活动区域主要分布在天山及其以北的地区。本文试图从新疆草原文化形成的过程入手,探讨新疆草原文化系统的内涵、基本特征、草原文化的形成与地理环境的关系。     

STRUCTURAL ESTIMATION OF RESIDENTIAL MOBILITY AND HOUSING TENURE CHOICE*

ABSTRACT. This study is devoted to studying households'decisions to move and whether to rent or own after moving. It employs dynamic discrete choice models which condition households'decisions on their circumstances at every point in time during the length of the observation while accounting for individual heterogeneity. The results show that key dynamic elements, captured by means of lagged dependent variables, as well as household heterogeneity, are significant determinants of the tenure choice and mobility decisions. Moreover, homeowners are found to be responsive to housing market conditions when adjusting their housing stock. Housing-price appreciation is found to discourage renters from becoming homeowners. Finally, our results reject the proportional monetary transaction costs specification suggesting that monetary transaction costs might be fixed.