试论机械加工质量技术控制

机械加工是工业建设中非常重要的一项工作,需要对其精度以及制作的质量进行保证。但是,在实际操作的过程中,还是可能会出现一定的误差情况,从而影响产品的整体质量。本文就机械加工质量技术控制的方式进行分析与探讨。     

导师制教学在小规模士官职业技术教育中的应用

小规模士官职业技术教育是军队院校职业技术教育的重要组成部分,分析了小规模士官职业技术教育的特点,详细论述了导师制教学流程及各个教学环节中的具体事项,并将导师制教学应用于《XX测试设备维修》课程,并取得了较好的教学效果。     

A Socio‐Technical Perspective To The Right To The City: Regularizing Electricity Access in Rio de Janeiro's Favelas

This article takes the contemporary transformation in electricity access in Rio de Janeiro's favelas as a starting point for a broader review of the relationship between the right to the city in informal settlements and the neoliberalization of the electricity service (introduction of full cost recovery and ‘the user pays' principle). It examines the socio‐technical process through which contractual customer relationships have been established or restored through regularization of the electricity service in two favelas, namely, the installation of meters and networks. I suggest that applying a science and technology study perspective to the right to the city helps explore both the materiality and the spatial dimension of power and politics and, in so doing, provides an insight into some of the forms of mediation that help reshape recognition, urban practices and the favela dwellers' position within such an essential service. Our analysis shows how the means of recognizing these city dwellers ‘by the network' are materially and symbolically reshaped by commercial processes. The question then is whether this right to the city, which is being reshaped by commercial processes, will be the source of new inequalities or new politicizations.     

When should workers embrace or resist new technology?

The question of how workers might respond to new technologies has lurked behind many debates on the subject. It has not been posed directly, in part because of concerns about the determinism of asking about the effects of a technology. A preliminary is to set aside these concerns by showing that effects can be identified without determinism. The main argument is that technologies can be assessed on six dimensions: intended or unintended effects; direct and indirect effects; degree of reconstitution in use; immanence; degree of success and degree of discontinuity with the past. These dimensions can then be used to pose questions about any one technology. Three illustrations suggest how such questions can be posed in concrete conditions. Technologies can be challenged so that alternatives to extant systems of work organisation can be considered.     

智能电能表在阶梯电价实施中的技术方案优化的探讨

通过对实施阶梯电价技术方案的探讨,指出了更新智能电表为最适合供电企业的方案。从本地费控预付费功能、多费率及阶梯电价计算选择功能、远程数传通信功能、负荷监控和控制功能四个方面,讨论了电能表技术方案的重点配置和优化,为电力部门在电能表的性能选择中提供了一个较佳的选型方案。     

平煤集团选煤工艺改造的探索与实践

本文介绍了自从2000年以后的平煤集团研究煤泥水处理工艺和选煤工艺的实践操作,对其所产生的应用效果做出合理的分析,同时在选煤厂的技术改造和设计上提供了丰富的实例参考与经验。     

中国队防守技术和对手的比较研究

中国男篮在第十六届世界男子篮球锦标赛的六场比赛中取得了一胜五负的战绩,与前两届相比成绩有所下降,但从整个比赛过程来看,中国队每场球打的都很顽强,尤其在防守端与以往相比还有一定进步。以下通过文献资料法、录像分析法和比较分析法等研究方法,第十六届世界男子篮球锦标赛中国队与对手之间的6场比赛的防守数据进行了多角度的比较研究,发掘中国队自身问题,找出与世界强队的差距,以期在今后的比赛中取得更好成绩。     

脱硝改造工程结构专业若干共性问题

本文结合国华电力公司烟气脱硝改造工程的实践经验,从脱硝支架结构选型、地基基础方案选择、结构可靠性鉴定等方面,总结了脱硝改造工程结构设计和组织管理中的共性问题,可为相关工程提供借鉴。     

浅谈CAD与标准化

介绍本公司ＣＡＤ软件的标准化进程。     

Embodied Technological Change,Learning‐by‐doing and the Productivity Slowdown*

The productivity slowdown in the US economy since the first oil shock has recently been associated with a larger decline rate of the relative price of equipment investment and a smaller rate of disembodied technical change. We set up a growth model in which learning‐by‐doing is the engine of both embodied and disembodied technological progress. A shift in the relative efficiency of learning‐by‐doing from the consumption to the investment sector is shown to imply a technological reassignment consistent with the above‐mentioned evidence. This result derives from the interaction between the obsolescence costs inherent in embodiment and the learning‐by‐doing engine.