清代莫晋绢本书法立轴的科学分析

上海博物馆藏清代进士莫晋(1761—1826)书法立轴(145 cm×50 cm),画芯为绢本。绢表面被红色涂层覆盖,上面有云纹、蝙蝠纹和"寿"字纹等手绘花纹,加工方式特殊。为科学保护这件文物,采用了视频显微镜、扫描电镜能谱仪、红外光谱、拉曼光谱和高光谱等无损(微损)检测技术对文物材料及制作方法进行研究。结果表明,该件文物用绢组织结构稀疏,背面采用三桠皮纸托裱;将铅白染色涂于绢表面进行加工,再采用高岭土和银粉绘制云纹、蝙蝠等;同时对文物模糊印章进行了有效提取。该研究结果为后续保护修复提供了科学依据。     

汉代陶俑彩绘颜料表征分析

为了建立汉代彩绘工艺、彩绘颜料等方面的数据库,为跨地域横向对比研究及彩俑的中长期保护和博物馆展出提供科学依据,本研究利用MINLTA CR-300色度仪、X—Rite Spectrodensitometer密度仪、XTL系列显微镜分析方法,对汉代陶俑彩绘6种颜料层61个样品的色度数据和5件陶俑残片颜料密度值的分布范围和表面显微结构信息特征进行了系统的分析测试。在大量色度数据的收集分析基础上,构建球体色度容差评估模型。球体色度容差评估结果表明,黑色样品保存较为完好,橙红色色度腐蚀现象严重,橙红色陶俑样品较其他样品分布均匀。颜料密度分析表明,橙红色陶俑腿残片保存状况相对较好,表面的颜料层较均匀且致密。显微分析发现,5％B72乙醇体系对表面颜料加固中,B72加固剂的分散性好,颜料表面无明显变化,在陶俑彩绘颜料保护过程中,B72-乙醇体系是可以选择的。     

六安白鹭洲M566和M585的年代及相关问题

本文通过随葬器物的详细对比,认为六安白鹭洲M566和M585的年代应属于战国晚期早段,墓主人为夫妻关系,属于下大夫阶层。两墓包含较多异质性的文化因素。     

高铁沿线旅游流网络结构及其互动关系研究——以合福高铁沿线地区为例

利用复杂网络分析方法,对合福高铁沿线城市和景区两个尺度上的旅游流网络结构和互动关系进行研究。结果表明:(1)合福高铁沿线旅游流网络规模大,覆盖面积广,但网络密度极低,具有显著的"中心—外围"结构;(2)合福高铁沿线核心旅游城市和重点旅游景区在网络中的功能突出、角色重要,其中高能级景区表现出较强的辐射效应,对周边节点具有较强的带动作用;(3)合福高铁沿线旅游景区之间已经形成了"一超多强"、"双核互动"和"单节点"三种合作关系,但网络中的合作关系受行政边界的屏蔽仍十分明显。     

Geographically Weighted Cox Regression for Prostate Cancer Survival Data in Louisiana

The Cox proportional hazard model is one of the most popular tools in analyzing time-to-event data in public health studies. When outcomes observed in clinical data from different regions yield a varying pattern correlated with location, it is often of great interest to investigate spatially varying effects of covariates. In this paper, we propose a geographically weighted Cox regression model for sparse spatial survival data. In addition, a stochastic neighborhood weighting scheme is introduced at the county level. Theoretical properties of the proposed geographically weighted estimators are examined in detail. A model selection scheme based on the Takeuchi’s model robust information criteria is discussed. Extensive simulation studies are carried out to examine the empirical performance of the proposed methods. We further apply the proposed methodology to analyze real data on prostate cancer from the Surveillance, Epidemiology, and End Results cancer registry for the state of Louisiana.     

Discussion on applying trombe wall technology for wall conservation and energy saving in modern historic buildings

Previous studies on modern historic buildings protection have been mainly conducted from the view of building history, culture and aesthetic, but rarely focus on the green building technology and energy-saving. With the increasingly serious crises of environment and energy, it is valuable to research how to carry out ecological protection to effectively reduce energy consumption in modern buildings while ensuring the authenticity and readability of building heritage information.

This article describes a new technical scheme to apply Trombe wall technology for wall conservation in modern historic buildings. The feasibility, key construction technologies and operating conditions in different seasons were demonstrated by an actual case in Beijing. Key findings show that the technical scheme not only protects the skin texture of the wall but also makes full use of passive solar energy. Energy consumption simulation results show that saving energy in winter is significant. Compared with the original building, the total energy consumption of the building that adopted the technical scheme was reduced by 10.77%, the heating energy consumption was reduced by 21.86%, and the cooling energy consumption was reduced by 1.02%. The research findings provide new inspiration and reference for studies on the protection of modern historic buildings, and serve as a technical reference for architects.     

珍稀的清宫紫檀雕龙纹宝座

这座宝座是由台湾收藏家陈先生从美国重金购得，今秋由中贸圣佳拍卖公司自台湾征集而来，是名副其实的海外回流的宫廷文物。     

明代“朝班”考述

朝班是朝会的基础,也是官员品秩及尊卑等差的直接体现。明初,朝班专准品级,其后兼隆侍从,又移于权势,改于因循,出现了次序参错,班行混淆的现象。班序的紊乱,直观地反映了政治情势的变迁。本文对明代朝班做了框架式的描述,并且分析了朝班变化的特点以及造成其变化的原因。