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中导向偏心注聚器及配套工具的研究与应用
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作者 于浩波 段宏 +1 位作者 闫继承 李海成 《采油工程》 2012年第1期1-5,16,73,共7页
Ⅱ类、Ⅲ类油层聚合物驱分注管柱中在用的几种偏心注聚器,受结构设计的限制,投捞成功率低于常规偏心配水器。为提高偏心注聚器的投捞成功率,综合考虑上、下两种导向方式的优缺点,开展了中导向偏心注聚器及配套工具的研究,介绍了中导向... Ⅱ类、Ⅲ类油层聚合物驱分注管柱中在用的几种偏心注聚器,受结构设计的限制,投捞成功率低于常规偏心配水器。为提高偏心注聚器的投捞成功率,综合考虑上、下两种导向方式的优缺点,开展了中导向偏心注聚器及配套工具的研究,介绍了中导向偏心注聚器的结构原理和工艺参数。室内性能实验表明,采用该偏心注聚器的分注管柱的一次投捞成功率可达98%,节流元件在70m^3/d流量范围内,最大节流压差可达2.5MPa,对聚合物溶液黏度损失率小于9.2%;379口井的现场应用情况及效果表明,应用基于该注聚器的分注管柱后,动用程度提高了10.3个百分点。该偏心注聚器的性能完全可满足Ⅱ类、Ⅲ类油层聚合物驱分注的要求。 展开更多
关键词 聚合物驱 偏心注聚器 中导向 现场应用
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以职业为导向的高职英语课程设计——基于中高职英语课程衔接研究 被引量:2
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作者 代小玲 《科技资讯》 2014年第25期187-188,共2页
本文基于中高职英语课程衔接研究,以教育学、心理学以及语言学相关理论为依据,以学生未来职业发展为导向,探讨高职英语课程设计原则、思路及其具体内容,旨在促进中高职英语课程的有效衔接和高职英语的科学发展。
关键词 职业导向 高职英语课程衔接课程设计
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对行全身麻醉下胃肠手术的患者进行术中目标导向容量治疗的效果探析
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作者 夏娟 唐莉 《当代医药论丛》 2017年第3期28-29,共2页
目的 :探讨分析对行全身麻醉下胃肠手术的患者进行术中目标导向容量治疗的临床效果。方法 :选取重庆医科大学附属第二医院收治的行全身麻醉下胃肠手术的患者100例作为研究对象,将其随机分为对照组和观察组,对对照组患者进行传统的术中... 目的 :探讨分析对行全身麻醉下胃肠手术的患者进行术中目标导向容量治疗的临床效果。方法 :选取重庆医科大学附属第二医院收治的行全身麻醉下胃肠手术的患者100例作为研究对象,将其随机分为对照组和观察组,对对照组患者进行传统的术中液体治疗,对观察组患者进行术中目标导向容量治疗,然后比较两组患者的并发症发生率及住院的时间。结果 :观察组患者的并发症发生率明显低于对照组患者,观察组患者的住院时间明显短于对照组患者,差异均具有统计学意义(P<0.05)。结论 :对行全身麻醉下胃肠手术的患者进行术中目标导向容量治疗的临床效果显著,且安全性较高。此方法不仅能明显缩短患者的住院时间,还能降低其术后肠梗阻的发生率,值得在临床上推广应用。 展开更多
关键词 全身麻醉 胃肠手术 目标导向容量治疗 临床效果 探析
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液压导向对中装置设计及实践
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作者 徐祖敦 夏天 《清远职业技术学院学报》 2012年第3期1-7,共7页
本文结合某钢厂板材热处理线工程,对钢板导向对中装置的设计特点进行了分析,并对该装置的现场调试进行了总结。
关键词 宽厚板 导向 液压 齿轮齿条
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浅谈问题导向教学法在中职数学教学中的应用——以直线和平面平行为例
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作者 解学良 邴启星 《饮食科学》 2017年第6X期167-168,共2页
本文以直线与平面平行的判定和性质为例,详解问题导向教学法在解决中职数学某些章节中遇到的知识难讲、学生参与性较差的问题,从而提高学生课堂参与性,进而提高课堂教学效率。
关键词 职数学问题导向学生参与
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关于公布《工业行业近期发展导向》的通知
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《中华人民共和国国务院公报》 北大核心 2003年第13期23-34,共12页
各省、自治区、直辖市、计划单列市及新疆生产建设兵团经贸委(经委),各直管协会:为贯彻落实《国民经济和社会发展第十个五年计划纲要》和"十五"工业及行业规划精神,根据广大企业及金融、证券等部门的要求,国家经贸委研究提出... 各省、自治区、直辖市、计划单列市及新疆生产建设兵团经贸委(经委),各直管协会:为贯彻落实《国民经济和社会发展第十个五年计划纲要》和"十五"工业及行业规划精神,根据广大企业及金融、证券等部门的要求,国家经贸委研究提出了机械、汽车、冶金、有色金属、石油、石化、化工、医药、煤炭、建材、轻工、纺织等行业近期发展方向,旨在加强宏观调控,引导全社会固定资产投资方向,优化资源配置,减少重复建设,促进各行业健康、稳定发展,以提高我国工业整体竞争力。近期工业行业发展必须坚持市场导向、突出重点、技术进步、协调发展、可持续发展等五项原则,坚持从市场出发,充分发挥市场机制配置资源的基础性作用。以产品结构、技术结构和企业组织结构调整为切入点,紧紧围绕新产品开发,产品质量改善、技术进步和降低成本,防治污染,加大技术改造力度,提高工艺和技术装备水平,努力形成拥有自主知识产权和关键技术的名牌产品。发挥工业整体优势,优化工业生产力布局和区域经济结构。 展开更多
关键词 《工业行业近期发展导向 行业规划 机械工业 汽车工业 冶金工业 石化工业
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超大型风电安装船液压升降系统结构件有限元分析 被引量:5
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作者 李毓洲 仇明 +3 位作者 张永康 张笛 郑和辉 薛驰 《船海工程》 北大核心 2020年第4期77-81,85,共6页
针对安装平台液压升降系统的单腿的结构形式中焊接结构件力学安全性能问题,如上部导向及铰接梁(yoke),其结构较为复杂,是主要的承力构件,必须要进行设计有限元力学计算以确保结构的安全性。利用有限元分析的方法对液压升降系统的单腿结... 针对安装平台液压升降系统的单腿的结构形式中焊接结构件力学安全性能问题,如上部导向及铰接梁(yoke),其结构较为复杂,是主要的承力构件,必须要进行设计有限元力学计算以确保结构的安全性。利用有限元分析的方法对液压升降系统的单腿结构的上部导向和铰接梁在风电安装船或平台上升、桩腿下降和预压载工况下进行应力及变形分析计算。结果表明,设计符合材料和规范要求,该结构的力学强度满足要求,不会由于应力集中而带来安全问题。 展开更多
关键词 风机安装船舶(平台) 上部导向部件 铰接梁
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R1轧机后推床结构改进设计 被引量:2
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作者 肖正娟 《设备管理与维修》 2019年第22期119-120,共2页
分析推床设备的故障原因,提出结构改进方案,验收改进效果。
关键词 后推床 导向 结构改进
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Unfaithfulness or Expressiveness? On KU Hung-ming's Translation of Chinese Classics From the Perspective of Translation Norms
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作者 CHE Huan-huan ZOU Xiao-ling 《Sino-US English Teaching》 2012年第6期1253-1257,共5页
As a beak with the traditional "prescriptive" approach and an important complement to translation theories, translation norms thus open up a descriptive and target-oriented perspective for the translation practice a... As a beak with the traditional "prescriptive" approach and an important complement to translation theories, translation norms thus open up a descriptive and target-oriented perspective for the translation practice and study. For the successful access of the translation text into the target culture, the translator has to make choices between two languages, texts and cultures, etc.. Thus the translation norms are revealed. This paper shows the operation of translation norms as seen from the English version of Chinese classics by KU Hung-ming and analyzes why KU Hung-ming's translation of Confucian classics such as Lun Yu and Zhong Yong enjoyed greater popularity among Western readers than the translation of Western missionaries. The paper also holds that the unfaithful translations regarded by a source text-oriented approach were actually where KU was most successful in implementing his translation strategies to achieve expressiveness. 展开更多
关键词 Chinese classics KU Hung-ming translation norms target culture
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Study of Strange Quark Mass in CFL Phase
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作者 LI Xin Lü Xiao-Fu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第5X期905-908,共4页
In this paper we introduce bilocal fields in the global color symmetry model and consider color and electrical neutrality conditions simultaneously to study the effect of strange quark mass Ms for the momentum-depende... In this paper we introduce bilocal fields in the global color symmetry model and consider color and electrical neutrality conditions simultaneously to study the effect of strange quark mass Ms for the momentum-dependent condensate of color-flavor locked phase. Consequently we find that there will be a quantum phase transition occurring. 展开更多
关键词 global color model color superconductivity
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The mediating role of export-oriented Japanese foreign direct investment in China
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作者 Chen-Chen Yong Siew-Yong Yew Pei-Lee Teh 《Chinese Business Review》 2010年第9期1-12,共12页
Since the early 1990s, China has become the largest destination of Japanese foreign direct investment (FDI). Observing this trend, the authors analyzed whether Japanese FDI did promote exports from China to the rest... Since the early 1990s, China has become the largest destination of Japanese foreign direct investment (FDI). Observing this trend, the authors analyzed whether Japanese FDI did promote exports from China to the rest of the world, and more importantly, whether this is a strategy adopted by Japanese multinationals to penetrate not only the Chinese market but also the global market. This analysis takes into account not only the direct effects of FDI on exports, but also the indirect effects, by examining the mediating role of export oriented Japanese FDI in China from 1998 to 2007 through panel analysis. The study contributes to the conceptual framework of indirect relationship among the macroeconomic variables, FDI and exports provides some insights into the strategy of export oriented Japanese FDI in creating a win-win platform for Japan and China. 展开更多
关键词 foreign direct investment EXPORTS panel analysis indirect effects
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Entrepreneurial Orientation,Knowledge creation process and New Product Development Performance
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作者 Shoujian Luo Yalin Yu 《International English Education Research》 2015年第9期1-4,共4页
This paper analyzed the relationship between entrepreneurial orientation and new product development perlormance based on the perspective of knowledge creation process. Through a questionnaire survey, we found that en... This paper analyzed the relationship between entrepreneurial orientation and new product development perlormance based on the perspective of knowledge creation process. Through a questionnaire survey, we found that entrepreneurial orientation is positively related to new product performance, and knowledge creation process plays a mediating role in this relationship. This article examines the role of entrepreneurial orientation on new product innovation performance in Chinese situations, and it is the first time to check the intermediary functions on each dimension of knowledge test between entrepreneurial orientation and new product development performance. 展开更多
关键词 Entrepreneurial Orientation Knowledge Creation Process New Product Development Performance SECI Model
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自动药品分包机的使用经验及用药安全
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作者 王晓宇 陈丽芳 +2 位作者 李民 耿魁魁 刘圣 《安徽医药》 CAS 2017年第5期934-936,共3页
目的总结该院自动药品分包机使用经验,确保病人用药安全。方法对该院自动药品分包机在各环节中的使用经验及出现的问题进行总结,并提出改进措施。结果自动药品分包机使用过程中未发生因加药原因产生的错误,但因机器原因出现的包药错误... 目的总结该院自动药品分包机使用经验,确保病人用药安全。方法对该院自动药品分包机在各环节中的使用经验及出现的问题进行总结,并提出改进措施。结果自动药品分包机使用过程中未发生因加药原因产生的错误,但因机器原因出现的包药错误频率较高;处方审核、药品核对环节采取措施,可排除部分安全隐患。结论在处方审核、加药、药品核对等环节规范操作可确保安全用药,机器维护方面仍需加强。 展开更多
关键词 自动药品分包机 使用经验 用药安全
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Perspectives of the Brazilian Poultry Industry for the Chinese Consumer Market
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作者 Cesar Augustus Winck Miguelangelo Gianezini +2 位作者 Clandio Favarini Ruviarot Joao Armando Dessimon Machado Homero Dewes 《Journal of Food Science and Engineering》 2012年第1期24-37,共14页
The objective of this article was to analyze the poultry and derivatives commerce between Brazil and China, taking into account the current market and the perspectives for the next years. The method used was the bibli... The objective of this article was to analyze the poultry and derivatives commerce between Brazil and China, taking into account the current market and the perspectives for the next years. The method used was the bibliographic review and analysis of secondary data from different sources, associated with the Market Orientation Theory and the Value Chain Theory. Nowadays, China is Brazil's main commercial partner in the international market, but taking into account the chicken meat and its derivatives, having Brazil as the first worldwide exporter and China, the second largest consumer, an effective commercial relationship has not been established yet. To understand the poultry market exchanges between Brazil and China, a framework was built to demonstrate the characteristics and factors found to influence country negotiations, considering current reality and future perspectives. Considering the Theory of Market Orientation, it is concluded that Brazil has effective conditions to consolidate itself as a major supplier of chicken meat and derivatives to China, because it shows determinant characteristics and market factors that allows the association of the national poultry value chain to the demands of the Chinese consumers, but some adjustments are needed in the sphere of international politics. 展开更多
关键词 Chicken meat market orientation Brazil China agribusiness.
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Gone with the wind: Seasonal trends in foraging movement directions for a central-place forager 被引量:2
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作者 Jesus HERNANDEZ-PLIEGO Carlos RODRIGUEZ Javier BUSTAMANTE 《Current Zoology》 SCIE CAS CSCD 2014年第5期604-615,共12页
Lesser kestrels Falco naumanni are migratory central-place foragers that breed in dynamic arable landscapes. After arriving from migration, kestrels have no knowledge of the distribution of crops, and consequently pre... Lesser kestrels Falco naumanni are migratory central-place foragers that breed in dynamic arable landscapes. After arriving from migration, kestrels have no knowledge of the distribution of crops, and consequently prey, around their colony. The energy demand of pairs increases as breeding season progresses, but at the same time prey abundance, and their knowledge on prey distribution, also increases. Wind can have a strong influence on flight cost and kestrels should try to reduce energy expendi- ture when possible. When prey abundance is low, kestrels have little knowledge of prey distribution, and pairs have no chicks, they could reduce foraging flight cost by leaving the colony with tailwinds. When prey is abundant, knowledge on prey distribu- tion has increased, and chick demand is high, kestrels should fly to the most favorable foraging patches. We analyzed foraging trips directions in a lesser kestrel colony along the breeding season and in relation to wind speed and direction. We recorded 664 foraging trips from 19 individuals using GPS-dataloggers. We found that outward flights direction changed from uniform to a concentrated distribution along the season, as prey abundance and individual experience increased. We also found a temporal trend in the angular difference between outward flights and wind directions, with low values early in the season and then increa- sing as expected, but again low values at the end, contrary to expectation. Results suggest changes in kestrels foraging strategy along the season in relation to wind. Kestrels depart more with tailwinds in exploratory flights early in the season, while there is a spurious coincidence in direction to preferred foraging patches and dominant wind direction at the end [Current Zoology 60 (5): 604-615, 2014]. 展开更多
关键词 Falco naumanni Movement ecology Foraging behavior Wind effect GPS-dataloggers
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The Yin and Yang of Wnt/Ryk axon guidance in development and regeneration 被引量:4
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作者 CLARK Charlotte EJ LIU Yaobo COOPER Helen M 《Science China(Life Sciences)》 SCIE CAS 2014年第4期366-371,共6页
In the developing embryo,nascent axons navigate towards their specific targets to establish the intricate network of axonal connections linking neurons within the mature nervous system.Molecular navigational systems c... In the developing embryo,nascent axons navigate towards their specific targets to establish the intricate network of axonal connections linking neurons within the mature nervous system.Molecular navigational systems comprising repulsive and attractive guidance cues form chemotactic gradients along the pathway of the exploring growth cone.Axon-bound receptors detect these gradients and determine the trajectory of the migrating growth cone.In contrast to their benevolent role in the developing nervous system,repulsive guidance receptors are detrimental to the axon’s ability to regenerate after injury in the adult.In this review we explore the essential and beneficial role played by the chemorepulsive Wnt receptor,Ryk/Derailed in axon navigation in the embryonic nervous system(the Yin function).Specifically,we focus on the role of Wnt5a/Rykmediated guidance in the establishment of two major axon tracts in the mammalian central nervous system,the corticospinal tract and the corpus callosum.Recent studies have also identified Ryk as a major suppressor of axonal regeneration after spinal cord injury.Thus,we also discuss this opposing aspect of Ryk function in axonal regeneration where its activity is a major impediment to axon regrowth(the Yang function). 展开更多
关键词 RYK Derailed WNT Wnt signalling axon guidance axonal regeneration spinal cord injury
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