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21.
陈晓亮 《东南文化》2016,(6):95-101
中国近代始有机制币,铸造机制币的核心技术部件是铸币模具,包括祖模(亦称原模、母模)及工作模。由于多种原因,铸币模具存世量稀少,历来为研究者所重视。南京博物院藏有十八件近代铸币钢模,是目前已知世界范围收藏中数量最大的,为研究中国近代经济、货币史提供了重要的资料。  相似文献   
22.
The microstructure and chemical composition of blue cakes, found during the archaeological excavation of the Ayanis fortress (Eastern Anatolia, Turkey), have been investigated by means of scanning electron microscopy combined with energy dispersive spectrometry (SEM–EDS), X-ray diffraction (XRD), micro-Raman (μ-Raman) and optical microscopy (OM) techniques. The analysis of the Ayanis cakes has shown the presence of Egyptian blue (i.e. CuCaOSi4O10, cuprorivaite), as the major component, intermixed with minor amount of other phases such as partially reacted quartz grains, an adherent glass phase and copper oxides. Since the finding of Egyptian Blue in Turkey has been never reported so far, great attention has been paid to its characterisation. The micro-chemical and micro-structural investigations of the Ayanis cakes have allowed a further insight into the manufacturing process and into the sources of the starting materials. The results of the characterisation have revealed some significant differences with respect to Egyptian blue cakes found in Egypt and Mesopotamia, as for instance the absence of tin excluded the use of bronze scraps or filings in their preparation differently from those produced in Egypt and Mesopotamia. Furthermore, some peculiarities of Egyptian blue found in Ayanis, as the detection of zinc in the cakes, allow to put forward the hypothesis of a local production considering that a large part of the bronze artefacts found at the Ayanis fortress is characterised by the presence of zinc as minor alloying element.  相似文献   
23.
Advanced manufacturing continues to be an important sector for emerging and industrialized economies, therefore, remaining an important topic for economic geography education. This article describes a case study created for the Association of American Geographer's Center for Global Geography Education and its implementation. The international machine tool industry is particularly useful for introducing students to the regional impacts of broader economic processes.  相似文献   
24.
The author got a chance to visit Turkey for investigating the damage of industrial facilities in the 1999 Kocaeli Earthquake which occurred on 17 August 1999 in the Kocaeli province of Turkey.

This report provides a brief investigation obtained through the seismic damage survey, particularly, focused on the damages to industrial facilities. The epicentral area in the Kocaeli province is the most industrial region of Turkey. Severe excitation attacked this region and industrial plants and structures were more or less damaged. Since the author could only visit a few sites, the report mainly describes the damages of two plants; TÜPRA? oil refinery where big fire occurred and TOYOTA-SA car manufacturing factory where no significant damage appeared.  相似文献   
25.
A senior Japanese authority on the Russian economy and its energy sector addresses the country's exposure to the so-called Dutch disease, suggesting that Russia did suffer from the potentially ruinous overdependence on oil and gas exports. The author argues, however, that the symptoms of the disease were actually not severe, attributing his interpretation to: (1) drastic decline of noncompetitive domestic manufacturing industries in the 1990s, which prompted a huge inflow of imports in the 2000s, but left competitive manufacturing enterprises in a position to survive; (2) extraordinary oil price increases in the 2000s, which significantly raised household and business incomes, creating augmented demand for products of domestic origin; (3) large differences between Russian and world prices of oil and gas, which functioned as subsidies for domestic manufacturing; and (4) massive intervention in foreign exchange markets by the Central Bank of Russia, which restricted the growth of imports and thus strengthened the surviving domestic manufacturing enterprises.  相似文献   
26.
This article presents a case study of the rise of Pfizer as a leading pharmaceutical company, with a focus on changing relationships between manufacturing technology and R&D between the mid 1940s and the mid 1960s. Pfizer first moved into pharmaceuticals through participation in the US government's penicillin effort during World War II. The company had expertise in deep tank, biological fermentation for the production of chemicals that it adapted to the manufacture of penicillin. Having greatly expanded its biological manufacturing capacity to meet state needs, Pfizer adopted an R&D program to find new microbial antibiotics suited to its manufacturing technology after the war ended. Pfizer's successes in this antibiotic era established the firm as a major pharmaceutical company. In looking to larger commercial markets for drugs, Pfizer, like its competitors, pursued medicines for chronic diseases rather than acute infections. For this pursuit, in the 1950s and 1960s, Pfizer transformed itself into a chemistry‐orientated pharmaceutical firm by reorienting its R&D toward chemistry. This led to a growing divergence between R&D and manufacturing and the eventual replacement of biological manufacturing with chemical manufacturing. The article explores the changing trajectories of R&D and manufacturing at Pfizer, their shifting positions within the firm, and the consequences of these changes and shifts for the firm's strategy and organization.  相似文献   
27.
周蕾  杨山  王曙光 《人文地理》2016,31(4):102-111
制造业发展及其区位演变是中国近30年来城乡空间发展的主要动力,不同所有制制造业区位变迁是解读经济体制改革作用于城乡空间发展机制的重要视角。基于1985、2004、2013年制造业企业数据,运用空间分析技术及计量模型,探讨无锡不同所有制制造业区位演变规律及其体制动因。结果表明:无锡制造业空间从以中心城区为主的"单中心"格局向以郊区为主的"多中心"格局演进,表现出显著的郊区化和空间不均衡特征,其中土地有偿使用的市场力量和各类开发区设立的行政引导是重要驱动机制,而区位通达性因素的影响相对较弱;不同所有制制造业的区位演变呈现出差异化的体制响应特征。本研究对无锡的产业布局优化和城乡规划具有重要参考意义。  相似文献   
28.
京津冀协同发展大背景下,北京市制造业转型升级和空间布局调整面临新的挑战。本文基于微观企业数据,采用偏离-份额模型剖析了1996-2010年北京市制造业发展的时空演化特征,基于空间偏离-份额模型,提出京津冀协同发展背景下,未来北京不同功能区制造业疏解方向。研究发现,从功能区层面来讲,北京市制造业由首都功能核心区向城市功能拓展区、城市发展新区以及生态涵养发展区渐次外迁,在此过程中高新技术产业、机械与装备制造业呈集聚发展态势,都市型工业近年来有所回迁,其余制造业逐渐退出北京市。在此基础上,以京津冀协同发展纲要为指导,结合京津冀都市圈各城市产业功能定位和集聚区建设分析了北京市不同功能区制造业未来疏解策略与方向。  相似文献   
29.
全球化背景下的广东省制造业地理集中研究   总被引:3,自引:0,他引:3  
本文利用2004年经济普查的数据,分析了广东省制造业的地理分布特征。广东省大多数的制造业地理集中程度都较高,并且主要集中在珠三角地区,很多地理集中程度较高的制造业分布都存在较高的空间自相关性。对广东省制造业集中的实证研究表明,资源和能源投入强度较高的产业较为集聚,并且出口显著提高了产业集聚程度。尽管外资是广东省制造业发展的重要力量,但是并没有促进产业的集聚,说明制造业外资已经进入扩散阶段。本文的结果和全国尺度的研究结果存在差异,这说明地理尺度对于研究产业集聚非常重要。  相似文献   
30.
We analyze the firm-level labor productivity growth returns of social capital—defined as a synthetic measure of “generalized trust,” “active participation,” and “social norms”—using a large sample of manufacturing firms in France, Germany, Italy, Portugal, and Spain. We find that firms' labor productivity growth is higher in areas with a better social capital endowment. The positive returns of social capital are, nevertheless, unevenly distributed across firms, with smaller, less productive, less capital-endowed, and low-tech firms benefitting the most from operating in strong social capital ecosystems.  相似文献   
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