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1.
本文是“滚齿加工误差分析与检验组”一文的第三部分。这部分的主要内容是分析与研究滚齿加工时产生切向误差(亦称运动偏心)的原因,切向误差的特征,切向误差与检验项目的关系、数学模型等。  相似文献   

2.
本文是“滚齿加工误差分析与检验组”一文的第七部分。这部分的主要内容是论述轴向误差的产生原因,数学模型以及轴向误差与第Ⅲ公差组之间的关系。  相似文献   

3.
本文是“滚齿加工误差分析与检验组”一文的第二部分。这部分的主要内容是分析与研究滚齿加工时产生径向误差(亦称几何偏心)的原因,径向误差的合成方法、特征,径向误差与检验项目的关系、数学模型、几何意义。  相似文献   

4.
本文是“滚齿加工误差分析与检验组”一文的第四部分。这部分的主要内容是分析与研究滚齿加工时既有几何偏心又有运动偏心的情况下应如何考虑其合成与补偿方法、数学模型和几何意义。通过补偿,可以减少加工误差(偏心误差)对齿轮加工精度的影响。  相似文献   

5.
本文是“滚齿加工误差分析与检验组”一文的第六部分。这部分的主要内容是论述机床周期误差、刀具误差对齿形误差的影响,导出了有关计算的数学模型以及与第Ⅱ公差组的关系。  相似文献   

6.
本文是“滚齿加工误差分析与检验组”一文的第一部分。这部分主要介绍滚齿加工误差的种类及齿轮误差的读数系统两个内容,通过这些内容的介绍可为后面的分析与研究做好准备并奠定基础。  相似文献   

7.
根据船舶检验及安全检查的管理规定与流程,理清船舶检验与安全检查之间的关系,探讨提高船舶检验及安全检查工作效率的措施。  相似文献   

8.
随着股票市场的发展,股票市场和经济增长的关系也成为热点问题.本文运用Johansen协整检验、格兰杰因果检验等计量经济学方法,通过分析我国近年来宏观数据及股市规模、流动性和波动性的季度数据,对中国股票市场发展与经济增长的关系进行了计量学检验.得出的结论是:总体上,中国股票市场和经济增长之间存在长期的均衡关系,经济增长对股市的发展具有一定促进作用,但股票市场对经济增长的作用十分有限.  相似文献   

9.
本文论证虚拟经济体系价格波动与实体经济体系价格波动之间的关系,以此来分析虚拟经济与宏观经济的稳定。全文分为四个部分:第一部分为引言,是虚拟经济与实体经济关系的理论探讨;第二部分为模型推导;第三部分经验分析,主要分析20世纪80年代后美国与日本经济运行特征;第四部分是全文总结。  相似文献   

10.
日前,记者从广东顺德检验检疫局获悉,进出口儿童服装已纳入到新法检目录。在半年的过渡期结束后,将于今年7月1日正式实施检验检疫。据悉,检验检疫行业标准SN/T1932.8-2008《进出口服装检验规程/第8部分/儿童服装》已于2008年11月1日开始实施,此标准为新制订的行业标准,  相似文献   

11.
This study examines ambiguity tolerance, perceived quality, and willingness to pay for remanufactured products. We found evidence to support a direct relationship between a consumer's tolerance for ambiguity and their willingness to pay for remanufactured products. There was also support for an indirect relationship between ambiguity tolerance and willingness to pay that is mediated through perceived quality. Extant literature often lacks an empirical justification regarding costing and quality assumptions for remanufactured products. This research provides such justification while also offering an explanation as to why consumers view remanufactured products as being of lower quality and are less willing to pay for them. Those employed in the remanufacturing industry are advised to reduce the level of ambiguity associated with their remanufacturing processes in order to command higher prices for their products in the marketplace.  相似文献   

12.
分析了直缝埋弧焊管直度偏差对钢管交货、钢管防腐和钢管生产检验进度的影响,探讨了钢管生产过程中直度偏差形成的原因,并提出防止直度偏差产生的建议,为直缝埋弧焊管生产过程中的尺寸精度控制提供理论依据。  相似文献   

13.
Despite the established importance of buyer–seller relationships in B-to-B markets, research to determine the differential effects that keep suppliers and customers in a relationship has been scarce. Referring to transaction cost analysis, this study investigates how switching costs and relationship value as perceived by each side unfold their bonding forces in such a relationship. Based on a large scale survey administered in Germany, Korea, New Zealand, and Argentina among marketing/sales and purchasing managers the study shows that relationship value has a stronger impact on intentions for relationship enhancement, search for alternatives and switch intention than switching costs for both buyers and sellers. Only with regard to relational tolerance and only for buyers do switching costs play a greater role than relationship value. Furthermore, buyers base their future relationship intentions more on the current state of the relationship than suppliers. Our results suggest that role differences must be taken into account when studying institutional arrangements in B-to-B markets.  相似文献   

14.
Sponsorship B2B relationships generally are entered into by sponsors seeking brand-related benefits through association with a sport entity brand. Negative incidents involving athletes representing the sport entity may threaten the brands of both the sport and sponsor and can weaken or even dissolve the partnership. The management of these episodes is critical in protecting the sport entity's brand equity, as well as the sponsor's brand, and ultimately the relationship. This study explores multiple stakeholders' perspectives on these degenerative episodes and the potential relational outcomes using a series of depth interviews with major sponsors and sport entities. We identify key constructs such as attribution of blame, societal norms, zone of tolerance and perceived severity which influence whether this behavior acts as a degenerative episode in the relationship. Factors such as existing relationship quality and episode management can affect the impact on the relationship as well as the extent of relational change.  相似文献   

15.
钻井液用重晶石粉密度测定不确定度的评定   总被引:1,自引:0,他引:1  
在钻井液化学剂性能的检验工作中,各种参数的数学关系比较复杂,且很难搜集到该方面不确定度的评定先例借鉴。如何对测量结果的不确定度进行合理的评定是困扰检测实验室的一个难题。依据测量不确定度的评价原则,通过实例,简要阐述了钻井液用重晶石粉密度测量不确定度的评定方法,对钻井液化学剂检测领域测量不确定度评定具有借鉴意义。  相似文献   

16.
Merger literature suggests that the relationship between shareholder gains and the relatedness of merging firms is contingent upon the compatibility of the two firms' top management cultures. This hypothesis is tested by surveying the perceptions of cultural differences of top management teams of recently acquired firms, and then relating these perceptions to related stock market gains to the buying firms. The findings suggest a strong inverse relationship between perceptions of cultural differences and shareholder gains, after controlling for perceptions of the buying firm's tolerance for multiculturalism and the relative size of the merging firms.  相似文献   

17.
This paper investigates the relationship between business group factors and affiliated firm innovation in terms of patents granted. We examine the following factors for business groups: group affiliation, group diversification, inside ownership, and family ties. In emerging markets, business groups act not only as an internal capital market, but also as a platform for resource sharing among affiliates. We use Taiwan's business groups as a research sample to investigate how these group factors affect affiliated firms' innovation. The findings indicate that firms that are affiliated with business groups innovate better than their unaffiliated counterparts. Group diversification and family ties have positive effects on firm innovation, while inside ownership has no significant positive effect. Our study contributes to the innovation literature by shedding light on business group factors and firm innovation.  相似文献   

18.
通过对检泵维修的日常工序管理及影响检泵维修质量的客观因素及关键部件工况环境的分折,寻找出提高检泵作业质量的有效途径。制定出切实可行的对策措施,全方位的提高检泵维修质量水准。  相似文献   

19.
The selling prices of used houses may not fully reflect the maintenance spending of current owners when prospective buyers are unable to conduct a thorough inspection before purchase. This article investigates how this resale externality problem affects the maintenance expenditures of homeowners. After considering both observable and unobservable repair expenses, the analysis shows that the resale externality reduces not only maintenance expenditures, but also household mobility. A treatment effects model is used to estimate the simultaneous relationship between mobility and maintenance in the Japanese resale housing market. The results indicate that the resale externality has a significant negative impact on maintenance expenditures.  相似文献   

20.
从论述油田企业发展与质量技术监督的关系入手,阐述了石油工业质量技术监督工作的发展历史:分析了油田企业质量技术监督的特点,提出 了油田企业质量技术监督的趋势。认为:质量技术监督管理机构和技术检测机构的双重建设将得到进一步加强;建立施工作业质量监督与监理制度,实施勘探开发工程项目监理体制和运行体制,将成为油田企业积极探索并必须取得突破的一大课题。  相似文献   

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