无线网络深度覆盖技术在石窟寺保护利用中的运用——以敦煌莫高窟为例

针对莫高窟在保护利用数据传输过程中出现的问题与发展趋势,提出了利用无线网络深度覆盖技术构建数据传输平台,解决莫高窟大型洞窟内保护利用数据无法传输的问题。为构建实用性强的传输平台,采取了如下措施。首先,针对莫高窟保护利用各项业务数据采集、传输模式、传输机制等各阶段特点,提出了基于无线网络深度覆盖技术构建数据传输试验平台的需求;其次,设计了试验平台构建方案,依据莫高窟洞窟分布与建筑形制确定了试验平台构建位置。结合莫高窟目前无线网络覆盖现状,通过选型分析确定了无线网络深度覆盖关键技术,并应用该技术构建试验平台;最后,对试验平台无线信号覆盖范围、信号强度、传输性能、安全性等进行验证,确保数据传输的完整性与连续性。此试验平台已运行一年有余,应用效果良好。     

国外进口瓷器修复专用材料的应用研究

国内外瓷器修复的基本流程没有很大差异,但是西方国家生产的修复专用材料品种较丰富,值得国内修复界吸收与应用。为此,本研究着重对Hxtal NYL-1、Golden Porcelain Restoration Glaze、Golden Polymer Varnish with UVLS三款瓷器修复专用产品开展分析研究。测试结果显示,在国内外5类环氧树脂中,Hxtal NYL-1的拉伸强度最低,断裂伸长率最高。Hxtal NYL-1在波长365nm的紫外线照射78d后,其色差变化最平稳。紫外可见光谱数据显示Golden Glaze仅吸收一定的中波紫外线UVB,Golden Varnish对长波紫外线UVA和中波紫外线UVB都具有吸收能力。波长365nm紫外老化实验可证明Golden Glaze和Golden Varnish都具备较好的光稳定性。而在254nm紫外老化环境下,Golden Varnish表现出更佳的抗紫外性能。此外,围绕瓷器修复实例,对这些产品的在修复中的使用方法进行了简要梳理。     

The impacts of parental migration on children’s subjective well-being in rural china: a double-edged sword

ABSTRACT

The emerging problem of left-behind children has attracted mounting academic and policy attention. Prior studies primarily cast light on left-behind children’s education, health, and behavior, while their subjective well-being is much less understood yet. Based on a nationally representative sample of rural children aged 10–15 in 2014, we examine the impacts of different types of parental migration on children’s subjective well-being and how these affects vary between boys and girls. The results show that parental migration is a double-edged sword: children from both-parent migrant families report compromised life satisfaction and relationship quality compared with those in integral families, and mother-only migration significantly lowers children’s subjective health. On the flip side, father-only migration enhances children’s aspiration for attaining college, an encouraging effect that is even stronger than that of parental education and family income. These effects are heterogeneous by children’s gender: boys seem to be more susceptible to the disruptive effects of both-parent migration; mother-only migration effectively promotes girls’ educational aspiration while father-only migration promotes boys’. This study portrays a comprehensive image of left-behind children. Relaxation of hukou restriction, equal access to education, and revitalization of rural economies are imperative to improve the well-being of left-behind children.

Abbreviations: LBC: Left-behing children; SWB: subjective well-being     

五代北宋高邮秦氏家族世系研究——以江苏扬州发现秦咏夫妇墓志为线索

扬州发现两合石质墓志,其主人北宋秦咏及其夫人朱氏,应系北宋著名文士秦观之祖父母。秦氏祖茔江都西山,即今西湖镇蜀岗村吕庄组七仙墩一带。通过对历史文献资料的梳理,可以对秦氏家族世系展开进一步考察,纠正秦氏家族部分成员在古代文献流传过程中出现的错误名讳记载,部分成员应因避讳等原因存在更改名字的现象;还可厘清包括秦咏及孙男秦观在内的秦氏十代家族世系,以及主要成员的生平事迹。     

《里耶秦简》(壹)所见作徒管理问题探讨

秦代编制作徒簿的机构有授予方的司空和仓,但二者分工不同;接收方包括库、田官、畜官、少内、属乡等。作徒簿分为临时付受与月度统计两种。秦代各级地方机构对刑徒管理的分工为:郡提出指导原则,县掌握本县刑徒的数据,县属机构负责具体管理。在当时人的观念中,徒隶是一个阶层的泛称,但在司法行政文书中则有特定的内涵,司寇不包括在内。     

从地方志的考察中看明清人的奢靡观

本文以地方志为基本资料进行考察,认为传统意义上广义的奢靡观念可以从以下几个方面界定:1.某事项的花费超过该事项的基本需要;2.某些不正当不应有的消费项目与活动;3.某消费与个人(或部分人)的收入不相称;4.消费者攀比浮夸。奢靡观念的新旧激荡反映出明清社会的变迁及其局限性。     

抗战时期国民政府的交通立法与交通管理

抗战时期,为保证大后方交通建设的顺利进行,提高交通运输效率,保障交通安全和畅通,国民政府制定了大量交通法规,涉及到交通人事、业务、工务和财务方面,也包含了国民政府在这些方面的具体管理内容,这些法规形成了比较完整系统的交通法规体系。大量交通法规的颁布,体现了国民政府在交通管理上的一些特点,包括实行交通统制、军需优先、提倡节约和地方协作等特点,但由于在实际的交通管理中存在交通机构变动频繁、运价过低、管理人员腐败和执法不严等问题,国民政府颁布的交通法规并没有达到预期的效果。     

新冠疫情下的博物馆:困境与对策

目前依然在全球肆虐的新冠疫情深刻影响着博物馆的当下与未来.纵观欧美各大博物馆,短期来看,疫情导致的闭馆直接引发了系列财务、减员等问题,而包括系统性歧视的平权运动在内的各类全新的社会议题同样亟待博物馆关注;长期来看,在疫情这场"持久战"面前,博物馆面临着应急、恢复、提升等三方面困境,以及将困境转变为机遇的挑战.为此,加拿...     

湖北省麻城余家寨遗址调查简报

余家寨遗址位于湖北麻城市,面积8300平方米。1991年,麻城市修建106国道将余家寨遗址西部边缘破坏,省、市、县文物部门对该遗址进行了全面调查勘探。遗址包含有新石器时代和西周两个时代的文化堆积。新石器时代标本中的主体是石家河文化,还兼有屈家岭文化、薛家岗文化及樊城堆文化等多种文化因素。在新石器时代遗址之上筑有一座面积约15000平方米的西周城堡,夯土城墙及护城河大部分保存完整。余家寨遗址为研究长江中下游原始文化之间的关系及南方商周文化与中原商周文化的关系提供了重要资料。     

Mississippian monumentality in the Yazoo Basin: recent investigations at the Carson site (22CO505), northwestern Mississippi

Investigations at the Carson site (22CO505), located in Coahoma County, Mississippi, have uncovered data on the development of a large Mississippian mound center dating to the period from A.D. 1200 through European contact. Recent sediment coring, excavation, artifact analyses, and radiocarbon and optically stimulated luminescence (OSL) dating shed light on earthworks and household structures at Carson, and on Mississippian culture in the Yazoo Basin more generally. Sediment coring demonstrates a laterally transgressing Mississippi River system deposited coarse sandy ridges and clay-filled swales underneath a surface horizon comprised of variously coarse to medium-fine sediment originating from generalized overbank flooding. In some instances, flood-borne sediments were found on mound flanks, indicating that at times river-based flooding may have interrupted mound construction. Sediment coring and trench excavation also demonstrate that Carson’s Mound D was built in four stages, with Stages II and III comprising the major stages of earth moving. Excavations on the mound summit reveal evidence of several superimposed structures that were burned in place and likely used for the production of stone, shell, and wooden craft items, perhaps related to Mississippi Ideational Interaction Sphere (MIIS) paraphernalia. Here we describe recent investigations at Carson and present preliminary findings; forthcoming publications will emphasize strategies of power, monumentality, craft production, and Mississippian exchange systems.