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某冷却塔坐于大面积填土地基上,由于地基土的压缩模量较小,势必造成有较大的沉降量。本文介绍了该冷却塔地基情况及对其沉降量的计算过程,而后进行了地基处理方案的比选。 相似文献
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我厂空压站循环冷却水采用GBNL3-125型冷却塔,使用过程中发现冷却塔布水器存在一些问题,不但影响冷却效果,而且故障频繁,检修困难较大。针对存在的问题,我们对布水器进行了改造,由转动式改为固定喷淋式,效果良好。 一、原冷却塔工作原理。 见图1,待冷 相似文献
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《Telecommunications Policy》2014,38(5-6):415-425
There is an ongoing discussion in the market which Next Generation Access (NGA) architecture best suits future needs and which investment and cost differences exist. The discussion can be subsumed as P2P vs. GPON, which is somewhat misleading as this article reveals. The discussion is driven by the fact that the high capital cost and the long asset life time of fibre mean that the technology choices made today will dominate the opportunities for telecommunication business of all market players, incumbents, competitors, content providers and business and residential users for many years in the future.The paper analyzes the cost and other differences between Fibre-to-the-Home (FTTH) access network architectures and their related different wholesale approaches by using the well-known and understood steady state approach applied in other NGA analyses in the past. In addition to the steady state analysis a dynamic cost evaluation is included taking into account the different investment behaviour of the FTTH architectures over time. The results describe investment and cost differences between architectures, incumbents and wholesale based competitive operators. The analysis has been performed for different geotypes (clusters) of decreasing population density in a representative European settlement structure. 相似文献
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In indigenous communities the nutrition transition characterized by a rapid westernization of diet and lifestyle is associated with rising prevalence of chronic disease. Field work and literature reviews from two different policy environments, Argentina (Jujuy) and Canada (Nunavut), identified factors that add to indigenous peoples’ disease risk. The analytical framework was the emerging human right to adequate food approach to policies and programmes. Indigenous peoples’ chronic disease risk tends to increase as a result of government policies that infringe on indigenous peoples’ livelihoods and territories, undermining their economic system, values and solidarity networks. Policies intended to increase food security, including food aid, may also fuel the nutrition transition. There is a need to explore further the connection between well-intended policies towards indigenous peoples and the development of chronic diseases, and to broaden the understanding of the role that different forms of discrimination play in the westernization of their lifestyles, values and food habits. Food policies that take due account of indigenous peoples’ human rights, including their right to enjoy their culture, may counteract the growth of chronic disease in these communities. 相似文献
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A strategic skill based model of supplier integration and its effect on supply management performance 总被引:1,自引:0,他引:1
Supplier integration is a tool to help organizations gain competitive advantage. Strategic supply management skills and the supply management function's perceived status are hypothesized as antecedents to supplier integration leading to supply management performance. The sample for this study includes 152 executive level supply management professionals. The empirical results suggest that strategic skills and perceived status are essential antecedents to supplier integration and subsequent performance. Further, the relationship between strategic skills and performance is mediated by supplier integration. Results of a dominance analysis also suggest which strategic skills are most likely to explain status integration, and performance. These findings have significant implications for supply management theory and practice. 相似文献
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A consistent theme in cross-cultural management research is that collectivists are more cooperative than individualists. We
use Hofstede's measure for individualism–collectivism and combine it with an experimental measure of cooperation to test this
relationship in China. In contrast to the established paradigm, we find that groups with higher individualistic scores are
more cooperative than those groups with higher collectivistic scores. We attribute these results to groups being composed
of outgroup members. In addition, we find that subjects from the more developed coastal area are more individualistic and
cooperative than are subjects from inland China.
Bradley J. Koch , PhD, is a Teaching Fellow at Nanyang Technological University. His research is focused on China where he studies a variety of topics including cognitive institutional environments, foreign direct investment, social capital, gender, and Internet and society. Pamela Tremain Koch , PhD, is an Assistant Professor in the School of Communication and Information, Nanyang Technological University. Her current research is focused on organisational communication, conflict management, internet, work, and society as well as information communication technologies and development. 相似文献
Bradley J. KochEmail: |
Bradley J. Koch , PhD, is a Teaching Fellow at Nanyang Technological University. His research is focused on China where he studies a variety of topics including cognitive institutional environments, foreign direct investment, social capital, gender, and Internet and society. Pamela Tremain Koch , PhD, is an Assistant Professor in the School of Communication and Information, Nanyang Technological University. Her current research is focused on organisational communication, conflict management, internet, work, and society as well as information communication technologies and development. 相似文献
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This study estimates cost-based prices for wholesale voice and data services provided to 3G (WCDMA) MVNOs according to their distinct types. For estimation, 3G MVNOs are classified into different types, and the overall cost of WCDMA facilities are separated into voice and data components based on their subscriber rates, actual traffic rates, as well as efficiency consideration of traffic rates. The study then calculates cost-based wholesale prices of voice and data services for each of the 3G MVNO types. The result of this study shows that a cost-plus pricing scheme can help achieve the policy goals of the regulator, namely, lowering telecommunications tariffs and facilitating the introduction of new convergent-type services, far more effectively than the current retail-minus pricing scheme. The findings of this study may assist firms in developing business models based on 3G networks and telecom regulators in designing policies related to interconnection, mVoIP, prepaid calls, wholesale services, and network neutrality. 相似文献
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倪卫高 《石油化工技术经济》2011,27(1)
文章对SPYRO裂解模拟软件在石化企业烯烃生产原料优化方案测算中的应用进行了比较深度的概括分析.结合该软件在上海石化的实际应用,认为在劣质化原油加工份额不断增加的趋势下,SPYRO裂解模拟软件有助于石化企业在烯烃生产原料优化选择、生产计划合理安排、原油加工生产效益比较等方面为企业相关决策者提供有效地帮助. 相似文献
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工程项目的一次性决定了工程项目部的一次性,而工程项目成本中心与企业利润中心地位又辱致工程项目部的临时性,在工程项目实践过程中,项目经理部的一次性在实现其功能的过程中可能会产生很多局限和负面影响,故项目部应具有相对的稳定性,在此基础上,本对工程项目部建设实践进行了初步总结并提出了建议。 相似文献
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《Food Policy》2014
The European Union (EU) nutrition labelling policy aims to facilitate consumers’ food choice, stimulate innovation and facilitate the circulation of foods bearing claims across countries. However, the beef industry has not fully taken advantage of utilizing nutrition and health claims based on the EU nutrition labelling policy to differentiate beef products in the market. This study investigates consumer preferences for nutrition and health claims on lean beef steak. Two choice experiments were conducted among 2400 beef consumers in four EU countries (Belgium, France, the Netherlands, United and United Kingdom). Multinomial logit and error component models were estimated. Our results generally suggest that consumer valuation of nutritional and health claims varies across countries. In Belgium, the Netherlands and France, nutrition and health claims on saturated fat yielded higher utilities than claims on protein and/or iron, while the opposite was found among consumers in the UK. The results imply that marketing opportunities related to nutrition and health claims on beef are promising, but that different nutritional marketing strategies are necessary within different countries. 相似文献