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海上平台多工况大型离心压缩机的选型设计 被引量:4
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作者 安维峥 赵新君 《风机技术》 2013年第2期31-36,共6页
基于南海某大型气田的实际工程需求,对多种工况下大型气田外输离心压缩机进行选型设计。在压缩机选型设计时考虑了实际配产的逐年流量和压力以及最大规模下的流量与压力。同时,海洋平台对机组的数量要求严格,过多的机组数量将导致平台... 基于南海某大型气田的实际工程需求,对多种工况下大型气田外输离心压缩机进行选型设计。在压缩机选型设计时考虑了实际配产的逐年流量和压力以及最大规模下的流量与压力。同时,海洋平台对机组的数量要求严格,过多的机组数量将导致平台面积增大,采用较少的机组并满足所有工况点的运行才是合理可行的选型方案。本文通过选型分析,在减少机组数量的前提下,完成了海上平台外输压缩机组的合理与配置,机组选型兼顾了实际配产与设计规模,该方案不仅降低了项目投资,还使得机组在不同运行工况下保持较高的运行效率。 展开更多
关键词 离心压缩机 外输气压缩机 多工况 选型设计 海上平台 气田
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The influence of different types of satisfaction on loyalty on C2C online shopping platform:From the perspective of sellers and the platform
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作者 Yanan Lu Qian Huang Yuting Wang 《中国科学技术大学学报》 CAS CSCD 北大核心 2024年第5期36-48,I0007,共14页
With the rise and development of major types of platforms,the competition for resources has become extremely fierce,and the market share of C2C platforms has been seriously threatened by the loss of resources.Therefor... With the rise and development of major types of platforms,the competition for resources has become extremely fierce,and the market share of C2C platforms has been seriously threatened by the loss of resources.Therefore,building and maintaining buyers’satisfaction and loyalty to C2C platforms is critical to the survival and sustainability of C2C platforms in China.However,the current knowledge on how platform satisfaction and loyalty are constructed in the C2C e-commerce environment is incomplete.In this study,seller-based satisfaction and platform-based satisfaction are constructed separately.We further distinguish seller-based transaction satisfaction into economic and social satisfaction and explore their antecedents and consequences.To test our research hypotheses,we conduct a survey and collect data from a real online market(Taobao website).The results show that seller-based transaction satisfaction positively affects platform-based overall satisfaction and loyalty,and that perceived product quality,perceived assurance,and perceived price fairness all have a significant effect on economic satisfaction,whereas perceived relationship quality and perceived empathy significantly influence social satisfaction.These findings help us understand the literature related to customer satisfaction in the context of C2C in China and provide inspiration for online sellers and platforms. 展开更多
关键词 transaction-specific satisfaction social and economic satisfaction various antecedents of satisfaction overall satisfaction C2C online shopping platform
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无失真可靠移植的优平台适应性引擎
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作者 陈园园 王竝 《科技通报》 北大核心 2014年第4期59-61,共3页
研究基于OpenGL ES嵌入式系统的开源图形库通用简易引擎开发方法。在嵌入式技术发展下,人们对图形图像处理要求逐步提高,构建基于嵌入式系统的通用图形图像接口是发展下一代嵌入式图像处理必须解决的问题。传统图形引擎接口复杂,并且各... 研究基于OpenGL ES嵌入式系统的开源图形库通用简易引擎开发方法。在嵌入式技术发展下,人们对图形图像处理要求逐步提高,构建基于嵌入式系统的通用图形图像接口是发展下一代嵌入式图像处理必须解决的问题。传统图形引擎接口复杂,并且各个图形引擎不能够很好地兼容所有嵌入式系统。提出一种基于OpenGL ES嵌入式系统的开源图形库通用简易引擎开发方法,采用通用设计的思想开发图形引擎,达到图形引擎的跨平台实现,在异平台图像失真方面,采用特征谱提取方法补偿各个平台之间差异性带来的图像失真问题。最后采用一组实际的三维地形图来验证引擎和算法性能。结果显示,补偿后的图像能较好地解决异平台时的图像失真问题,并且图像引擎能够方便地在各个平台之间移植,具有很好的通用性和工程价值。 展开更多
关键词 OpenGLES 跨平台 图形引擎
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