某水源地取水工程的取水量保证程度分析

通过分析某水源地的含水层特征、富水性及水质,探讨了将其作为电厂供水水源的可行性.结果表明,该水源地的地下水总排泄量为12.05 m^3/s,其水质、水量均能满足要求;适宜的开采方案为陕西开采2.5 m^3/s,山西开采3.0 m^3/s.根据开采放水试验资料推算,自流开采区的自流量为2.41 m^3/s,用泵开采区的可开采量为0.71 m^3/s,总开采量可达3.12 m^3/s;消除山西铁匠铺水源地同时开采的影响,开采量仍可达2.75 m^3/s,其中自流量为2.08 m^3/s.另外,开采地下水对天桥大坝的稳定性无影响.     

浅谈现浇混凝土质量的保证措施

结合现浇混凝土施工实践,通过对混凝土原材料进厂、拌和、运输、施工技术、养护、施工缝处理、外观修饰等施工环节注意要点的论述,提出了改善混凝土外观质量的技术措施,从而达到内外质量兼备的目的.     

浅谈工程质量的细节管理

筒述了强化工程质量细节管理的重要性,结合川荫线路面大修工程实例,就如何从细节入手狠抓工程质量进行了阐述,提出了工程质量细节管理的具体措施,以确保工程质量,圆满完成工程任务.     

浅谈铁路营业线施工中的安全保证措施

结合铁路营业线施工特点,从组织领导、措施制定及措施落实等方面,阐述了施工单位在铁路营业线施工中应采取安全保证措施,以消除安全隐患,有效保证行车和施工安全,从而实现安全生产目标。     

地下防水混凝土施工实践

结合工程实例，介绍了混凝土自身防水的施工措施，从模板支设、混凝土的搅拌、浇筑、养护等方面阐述了地下防水混凝土的施工过程，提出了后期管理以及质量保证措施。     

基于顾客满意的个性化定制质量保证体系研究

针对个性化定制生产模式最关键的质量保证问题,提出了一种基于顾客满意的个性化定制质量保证模型,并给出了其功能体系结构.该模型综合运用了质量设计、统计过程控制、神经网络和综合评价等理论和技术,以建立个性化定制质量保证系统.详细研究了基于顾客满意的个性化定制产品的协同质量设计、面向多品种小批量的工序质量控制技术、面向产品全生命周期的质量综合评价技术、基于可扩展标记语言的系统集成等关键使能技术,并以某重型机械集团的双进双出磨煤机为例,初步开发了基于顾客满意的个性化定制质量保证原型系统,为企业发展个性化定制生产模式提供了一条有效的途径.     

The NIST Length Scale Interferometer

The National Institute of Standards and Technology (NIST) interferometer for measuring graduated length scales has been in use since 1965. It was developed in response to the redefinition of the meter in 1960 from the prototype platinum-iridium bar to the wavelength of light. The history of the interferometer is recalled, and its design and operation described. A continuous program of modernization by making physical modifications, measurement procedure changes and computational revisions is described, and the effects of these changes are evaluated. Results of a long-term measurement assurance program, the primary control on the measurement process, are presented, and improvements in measurement uncertainty are documented.     

并行工程环境下的质量保证系统

根据并行工程的特点,对传统串行开发存在的质量管理问题进行了分析,提出建立产品开发业务职能之间的动态关系是实现 Ｃ Ｅ质量保证系统的关键。针对传统 Ｑ Ｆ Ｄ 方法在应用中存在的问题,建立了 Ｃ Ｅ 环境下基于广义 Ｑ Ｆ Ｄ 的质量保证系统模型,并对系统的结构进行了分析。     

关于有机污染物监测的质量保证

本文主要总结了日本在１９７５—１９９４年间八年内环境有机污染物的实验室分析精度调查结果,并以ＰＣＢ、ＴＢＴ、ＶＯＣ、农药为例比较了不同的前处理方法、分析方法的测定结果。结果表明,有机污染物的ｃ.ｖ％一般在２０％以上,这主要是因为试样前处理过程长、新的分析方法和新仪器掌握不够熟练及一些有机污染物的化学活性强、易挥发、不稳定造成的。要得到准确度好的测定结果,环境监测工作者还必须进行大量的调查研究工作。     

Dairy cow handling facilities and the perception of Beef Quality Assurance on Colorado dairies

A survey was conducted on Colorado dairies to assess attitudes and practices regarding Dairy Beef Quality Assurance (DBQA). The objectives were to (1) assess the need for a new handling facility that would allow all injections to be administered via DBQA standards; (2) establish if Colorado dairy producers are concerned with DBQA; and (3) assess differences in responses between dairy owners and herdsmen. Of the 95 dairies contacted, 20 (21%) agreed to participate, with a median herd size of 1,178. When asked to rank the following 7 traits—efficiency, animal safety, human safety, ease of animal handling, ease of operation, inject per Beef Quality Assurance (BQA) procedures, and cost—in order of priority when designing a new handling facility, human and animal safety were ranked highest in priority (first or second) by the majority of participants, with ease of animal handling and efficiency ranked next. Interestingly, the administration of injections per BQA standards was ranked sixth or seventh by most participants. Respondents estimated the average annual income from the sale of cull cows to be 4.6% of all dairy income, with 50% receiving at least one carcass discount or condemnation in the past 12 mo. Although almost all of the participating dairy farmers stated that the preferred injection site for medications was the neck region, a significant number admitted to using alternate injection sites. In contrast, no difference was found between responses regarding the preferred and actual location for intravenous injections. Although most participating producers are aware of BQA injection guidelines, they perceive efficiency as more important, which could result in injections being administered in locations not promoted by BQA. Dairy owners and herdsmen disagreed in whether or not workers had been injured in the animal handling area in the last 12 mo. Handling facilities that allow for an efficient and safe way to administer drugs according to BQA guidelines and educational opportunities that highlight the effect of improved DBQA on profitability could prove useful. Dairy producers play a key role in ensuring that dairy beef is safe and high quality, and just as they are committed to producing safe and nutritious milk for their customers, they should be committed to producing the best quality beef.