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61.
在对平板电脑生产线进行全面调查的基础上,采用AHP法通过2项评价因素和6项评价因子对其生产线方案选择进行了综合评价。结果表明：平板电脑生产线评价因素层中,经济效益是评价中最重要的因素,应着重考虑影响经济效益的相关因素,以提高生产线的效率。 相似文献
62.
Commonality in product line design refers to using identical product features or modules in multiple products. The use of commonality in product line extensions is a growing practice in many industries. We consider vertical product line extensions to lower- and higher-end products, and study the effects of identical feature levels on consumers' evaluation of original products. Using a between-subject experimental design, we examine the effect of commonality using the bicycle as the example product. This experiment is then extended to eight different service and manufactured products. Results show that in many cases identical feature levels increase the perceived similarity between original and extension products. This influences the valuation of original products: valuation of the original low-end product increases while valuation of the original high-end product decreases. However, the amount of valuation change is not necessarily the same for the original low- and high-end products. This valuation change occurs regardless of buyers' knowledge level of the product and is sometimes moderated by a large difference in a differentiated feature.
This study suggests the importance of accounting for the demand-side effect of commonality in product design decisions. Change in customers' valuation may call for an adjustment in price—the price of a high-end product may have to be lowered due to valuation discount, and the price of a low-end product could be raised to take advantage of valuation premium. This change in valuation does not occur for every feature in every product. Therefore, by properly selecting the features that are identical, a firm may be able to take advantage of valuation premium without sacrificing valuation discount and enjoy the economies of scale in manufacturing and logistics due to commonality. 相似文献
This study suggests the importance of accounting for the demand-side effect of commonality in product design decisions. Change in customers' valuation may call for an adjustment in price—the price of a high-end product may have to be lowered due to valuation discount, and the price of a low-end product could be raised to take advantage of valuation premium. This change in valuation does not occur for every feature in every product. Therefore, by properly selecting the features that are identical, a firm may be able to take advantage of valuation premium without sacrificing valuation discount and enjoy the economies of scale in manufacturing and logistics due to commonality. 相似文献
63.
There have been more and more accidents in the world. Since 1919, numerous accident causation theories (models) have been proposed. However, due to the complexity of previous accident causation models, it cannot avoid accidents effectively. The liners cannot understand the logical relationship between these causations and apply them in practice. The author and the group think that one of the methods used in preventing accidents is to enable people to remember the cause of an accident (namely, human errors) and do the right thing. We offer 24Model (human-thinking, simple and easy-applying) to conduct people to do the right thing for avoiding the accidents. While using the 24Model to explicitly analyze the causes of accidents and then store them in a database in split fields, the statistical law governing accident causation can be deduced. To prevent accidents, Gui Fu and the group call for open data of accident causations for the future preventions. The accumulation and sharing of safety knowledge could promote the safety behaviors, and thus create a safety culture that safety is about doing the right thing. Keypoints: (a) The three kinds and source of unsafe acts directly triggering accidents and disasters are described. (b) The model is a simple, but comprehensive, analytical framework for integrating the findings from accidents. (c) The model can be used to analysis the causes of accidents, form a logical body of accident causes and store them in a database in split fields to enable people to remember and know them. Precis: The unsafe acts arise from the lack of cognition and assessment on hazardous situations, such situations can be improved by reinforcing the safety knowledge of the employees to identify hazards. © 2019 American Institute of Chemical Engineers Process Saf Prog: e12044 2019 相似文献
64.
建立了涡旋压缩机径向间隙泄漏的数学模型和模拟压缩机热力过程的计算模型。分析了不同的径向间隙量对其泄漏量的影响,以及对压缩机性能的影响。 相似文献
65.
主要对哈拉沟煤矿的矿井给排水系统进行设计,为了使哈拉沟煤矿的矿井给排水系统能更好地利用并合理配置矿井资源,本文从哈拉沟煤矿矿井特有的生产作业环境以及地质水文特点进行考虑,分析煤矿矿井给排水系统可能存在的问题,讨论的技术重点问题主要包括煤矿矿井供水水源选择,矿井井下供水以及煤矿废水处理等,对哈拉沟煤矿矿井的生产生活给水系统,消防供水系统以及生产废水排水系统进行设计。 相似文献
66.
67.
探讨了 GB/ T16 6 75 .1～ 16 6 75 .2— 1996《技术制图 简化表示法》标准中某些简化规则中存在的合理性、统一性问题 ,提出了相应的修订建议 ,以期标准制定部门适时纠正。 相似文献
68.
冯儒梅 《中小企业管理与科技》2021,(9)
随着我国电网逐渐向智能电网迈进,信息技术在电能传输、转换、分配、调度等方面的应用,使电力企业可以进行结构调整,提高电力系统管理水平。据统计,2011年,我国电力信息化投资达220亿元,2012-2015年,电力工程建设稳步推进。为了促进电力企业全面开展项目成本核算和有效控制,提高电力工程项目的效益,确定了典型方案设计模块,通过定额规则库与典型方案设计相匹配的方法,解决了安装过程中定额第一版遗留的一些问题,并通过设计选型等措施加强了成本控制。 相似文献
69.
洞庭湖区是湖南省的"鱼米之乡",对湖南经济社会的发展具有十分重要的战略意义,"十五"规划以来,洞庭湖区域经济迅速发展,但受特殊人、地、水关系和其他各种因素的影响,区内仍存在着区域协调发展不合理,水资源匮乏和环境污染严重等问题,因此,合理规划湖区生态经济区,对调整洞庭湖生态经济区的产业结构和经济发展方向,促进区内经济与环境保护协调发展,实现人地协调共生有着重大意义。 相似文献
70.
本文通过对北东口水道特大桥海上平台的研究,系统地介绍了海上钢管桩的防腐制作工艺——钢管桩表面涂敷技术。在实际应用的质量检验中证明该技术有良好的效果,有效的控制了钢管桩的腐蚀破坏。 相似文献