排序方式： 共有207条查询结果，搜索用时 15 毫秒
1.
本文通过研究追缴回来的三件"叔休器"和见于著录的五件"叔休器",判断目前所见所有"叔休器"均属同一器主。叔休可能为春秋早期管理当地盐业贸易的职官,身份地位均较重要。同时结合铭文内容等认为"叔休器"可能来源于淮河流域信阳一带的周代诸侯小国"冠"。冠、番、樊等可能是被淮河以外诸国称"繁"的不同小国,它们位于淮河流域信阳一带,在商周时期盐铜贸易环节发挥了重要作用,逐渐形成盐铜交易枢纽"繁阳"。 相似文献
2.
To thermally upgrade exterior masonry walls, interior insulation is often the only possible retrofitting technique, especially when dealing with historic buildings. Unfortunately, it is also the riskiest post-insulation technique, as frost damage, interstitial condensation, and other damage patterns might be induced. To diminish those risks, nowadays so-called capillary active interior insulation systems are often promoted. These systems aim a minimal reduction of the inward drying potential, while interstitial condensation is buffered.
Currently, several capillary active systems are on sale. These different types have, however, widely varying properties. In this article, a closer look at the hygrothermal properties and the working principle of a number of “capillary active” interior insulation systems is made. The spread in capillary absorption coefficients and the vapor diffusion resistances of the different systems is discussed and their influence is illustrated. Based on all this, a more nuanced view on capillary active insulation systems is pursued.
Abbreviations: AC: aerated concrete; CaSi: calcium silicate; GM: glue mortar; GB: gypsum board; HAMFEM: Heat Air and Moisture Finite Element Method; MW: mineral wool; PE: polyethylene; PIR: polyisocyanurate; PUR: polyurethane; VIP: vacuum insulation panel; WFB: wood fiber board; XPS: extruded polystyrene; sddry: dry vapor diffusion resistance factor; µdry: dry vapor diffusion resistance 相似文献
3.
Roel Hendrickx Hilde De Clercq Roald Hayen 《International Journal of Architectural Heritage》2016,10(1):84-95
Salt-accumulating renders are usually applied in several layers with different specific properties of moisture transport. An extensive experimental programme was carried out to establish a relationship between those properties of individual layers and the performance of combined systems on a salt-laden substrate. Each of the 20 renders was characterized separately in absorption and drying tests, vacuum saturation tests, dry cup tests, mercury intrusion porosimetry, and ultrasound wave velocity measurements. Each of the 12 combined render systems was applied on a brick, which was then saturated with a concentrated NaCl solution by free capillary uptake. Subsequently the assembly was closed at the bottom and subjected to an accelerated drying test (50° C and 15% relative humidity). Moisture and salt profiles over the depth were taken regularly during 1 month. The results reveal very different degrees of effectiveness and levels of risk for the substrate, which are related to the moisture transport properties. 相似文献
4.
Haipeng Zhang 《Journal of Modern Chinese History》2016,10(1):52-66
Although the factual chronology of World War II is not in dispute, how to best make sense of these facts and how to objectively evaluate that history have always been limited by political circumstances and personal biases. Viewing WWII seven decades later, we need to move away from Eurocentrism and to stop seeing the war from the prism of a European war or Pacific war. The entire history of WWII, from beginning to end, including its several phases characterized by fermentation, outbreak, climax, and conclusion, is extremely complex. This paper argues that the war has two origins or starting points because it resulted from disparate prewar conditions in Europe and Asia. Viewed from this perspective, the strategic importance of the China Theater in WWII and the enormous sacrifices and contributions the Chinese people made to the victory over Fascism and for world peace ought to be given due credit. 相似文献
5.
Sandra Arnold Scham 《Journal of Archaeological Method and Theory》2001,8(2):183-213
The question of multivocality has been much explored and debated in recent archaeological publications. Clearly, the objective of such work is to assure the inclusion of the views of disadvantaged minorities and disenfranchised peoples in the presentation of their own pasts. This objective has not been achieved with much success, however, partly because mainstream archaeologists have had some difficulties in grappling with what appear to be a proliferation of alternative archaeological theories. Few discussions have approached alternative archaeologies as constituting a definable archaeological paradigm that might be termed The Archaeology of the Disenfranchised. Four different models within this paradigm are discussed and a strategy for a more widespread inclusion of alternative archaeological discussions and projects is suggested. 相似文献
6.
Anders Andrén 《International Journal of Historical Archaeology》2000,4(4):315-334
During every war between Denmark and Sweden from at least 1505 to 1676 popular peace treaties were concluded by common men on both sides of the national border. These treaties were negotiated in contrast to the aggressive policy of the political leaders and to the nationalistic discourse of the elite. The aim of this article is to use archaeology to give an economic, social, and mental background to these treaties, and to the regional identity across the border that they presuppose. Above all a specific building tradition seems to have given the peasants a mental affinity across the border. 相似文献
7.
Saltpetre (KNO3) manufacture was a principal monopoly industry in early Modern India when the United Kingdom governed the social and economic systems. The process represented microbial transformation of excrementitious livestock and human wastes deposited around habitats, resulting in formation of salt efflorescence at an economic scale. Low caste people collected these wastes for extraction and production of rough saltpetre under the administrative control of British India. Stable isotope composition (δ15N and δ18O) was used to trace details of the microbial transformation processes, often involving the isotopic fractionation of nitrogen and oxygen. Marked elevation in δ15N and δ18O values for nitrates in soils and deposits, relative to those of primary organic nitrogen in diets and water sources, characterizes the unique processes of historic saltpetre manufacture in British India. 相似文献
8.
Martin Danyluk 《对极》2023,55(5):1368-1389
Recent studies of logistics have embraced the “choke point” thesis: the notion that a strategically positioned group of workers or insurgents can exercise outsize power by disrupting the circulation of goods through the supply chain. This article examines this proposition through the case of Coco Solo, Panama, an informal community situated at the epicentre of Panama’s transit economy but persistently excluded from its benefits. Between 2001 and 2014, as part of a protracted struggle over housing, Coco Solo residents repeatedly blockaded key ports and logistics facilities. Despite their location at a critical node in global capitalist commodity circuits, the community’s actions met with limited success. I draw on the case to refine existing theorisations of logistical resistance, emphasising the contingent factors that influence the effectiveness of such tactics, the diverse contexts in which they are mobilised, and the value of going beyond workerist and insurrectionist accounts of supply chain disruption. 相似文献
9.
Meg Sherval 《Geographical Research》2023,61(2):222-233
Global energy policies embracing a transition to unconventional oil and gas development are hallmarks of many developed nations. Among these, the United Kingdom has framed the development of shale gas as one means to transition from high-carbon fossil-fuel consumption to low-carbon alternatives. Yet the introduction of this industry and recent legislation associated with it have not been without controversy. Communities throughout the United Kingdom are engaged in sustained debates concerning climate change, health, the scale of extraction footprints, securitisation, and governance. Places such as Kirby Misperton, the focus of this article, are representative of many villages where questions abound about the role of justice at all stages and scales of governmental decision-making. Using a legal geographic lens, this article examines narratives among local residents who are actively resisting the arrival of unconventional gas. I consider how the relationships between and among energy transition, policy, and justice have been interpreted by communities and argue for inequity and risk to be addressed in more transparent ways. I contend that highlighting counter-narratives remains essential if powerful arguments by governments and others are to be negated. Fundamentally, true justice can only prevail when all stakeholders are considered legitimate and their opinions valid. 相似文献
10.
Joost Morsink 《Environmental Archaeology》2019,24(2):149-160
ABSTRACTThe metaphor of catalytic environments adequately accentuates the key role of natural factors in social change without superseding the significance of human agency. In this approach, natural resources are integrated into social practices and strategies while avoiding an environmentally deterministic perspective. The case study of MC-6, Middle Caicos, Turks & Caicos Islands, demonstrates how the natural availability of salt, fish, and cotton affected processes of social change, including settlement practices, food procurement strategies, and long-distance exchange. The inhabitants of MC-6 chose these resources within a social framework of historic practices and regional interaction, while simultaneously depending on local natural conditions and environmental factors. Although environmental diversity in the Caribbean highlights the relevance of catalytic environments, this approach is a tool to examine the dialectic interaction between humans and environments at a global scale. 相似文献