基于质量成本计划配置的质量成本控制

围绕项目运行过程,分析了质量成本管理系统的结构和功能.构建质量成本计划配置结构,并阐述了计划配置的必要性和优越性.核定质量成本数据范围,提出多维度的质量成本数据结构,并基于该数据结构对质量成本进行多层次的计划分解.最后,针对项目实施的关键阶段,提出了质量成本控制局部反馈结构,为质量成本计划的细节性调整提供理论依据.     

浅谈实验室质量控制计划

如何制定实验室质量控制计划,以确保试验结果准确性,进行初步探讨,进行学习和交流。     

工程项目质量计划在施工质量控制中的作用

工程项目质量计划是按照ISO90 0 2质量保证标准的要求 ,针对具体的安装项目而规定的专门质量措施、资源和活动顺序的文件 ,它是工程质量内部审核的依据 ,是工程项目质量管理的纲领性文件 ,也是施工单位向建设单位作出的质量承诺。     

A Markov Model for Quality Control Plan Selection

A Markov chain model is developed which provides a measure of the cost of using alternative plans to control the output quality of productive processes. Such a model provides a yardstick for selecting the “best” control plan structure for a given process. The model structure is explained by presenting the example of a two-state process controlled by a plan which executes corrective action on the first defective sampled.     

2015 Action Plan on the Development of Quality Released

<正>2015 Action Plan on the Development of Quality(Action Plan for short)has been recently released by the State Council to make further deployment on the priorities of Quality Development Outline(2011 to 2020).A total of 102 specific tasks covering 4 aspects were developed in the Action Plan according to the Government Work Report     

ISO／TC176的新战略计划及我国质量管理标准化工作近况

2006年2月,ISO/TC176质量管理和质量保证技术委员会制定了新的战略计划(BusinessPlan)草案,并广泛征求各个成员国意见,本文将介绍该战略计划草案的主要内容以及我国质量管理标准化的工作近况。一、ISO/TC176的愿景和使命ISO/TC176的愿景是通过全球范围内的广泛接受和采纳的ISO9000族标准,为各组织提供一项提高业绩的有效方法,并为个人或组织对所购买产品(物资或服务)的质量能够满足期望提供信心,以达到促进全球贸易和繁荣,以及提高人民生活水平的最终目的。ISO/TC176的使命是:●识别并理解质量管理领域中,社会、标准使用者以及消…     

Beijing Action Plan 2016 Released to Support the City's Quality Development

正The Beijing Action Plan 2016 for Implementing the Quality Development Outline(hereinafter referred to as the Action Plan)is the key measure of Beijing government to carry out the State Council’s Action Plan 2016 for Implementing the Quality Development Outline and also provides the overall arrangement of quality work during the first year of 13~(th) Five-Year period(2016-2020),playing a guiding role     

Dental Enamel Quality and Black Tooth Stain: A New Approach and Explanation by using Raman and AFM Techniques

This contribution takes in account investigation of dental enamel regarding “quality” of hydroxyapatite material involved in the mineralization process. Areas damaged by black stain were investigated in order to evaluate changes in chemical composition as compared to those of healthy dental enamel.

Different sectors on tooth surfaces were analyzed using micro-Raman spectroscopy. The integral areas of ν₁ (960 cm^?1) phosphate peak as well as of B-type carbonate peak ν₂ (1070 cm^?1) were obtained to investigate structural differences between the specimens (healthy/unhealthy enamel tooth and different sectors on unhealthy surface tooth). A complete list of chemical specimens involved in chemical processes on dental enamel surface was obtained by Energy Dispersive x-rays (EDX) investigation.

It was noticed that mineralized carbonate peak at 1070 cm^?1 decreased significantly for unhealthy tooth enamel or spots areas (as fluorite groups), suggesting that carbonate ions are easily dissolved in the presence of fluoride.

The present study is confirming an organic origin for the dental “black stain.” The “black stain” is the result of a complex generation process from the damaged enamel, thus explaining their reappearance after the mechanical removing. A possible model for the “black stain” generation process is advanced.     

Biocompatibility of Dental Alloys

Modern dental alloys have been used for 50 years to produce prosthetic dental restorations. Generally, the crowns and frames of a prosthesis are prepared in dental alloys, and then veneered by feldspar ceramics or composites. In use, the alloys are exposed to the corrosive influence of saliva and bacteria. Metallic dental materials can be classified as precious and non‐precious alloys. Precious alloys consist of gold, platinum, and small amounts of non‐precious components such as copper, tin, or zinc. The non‐precious alloys are based on either nickel or cobalt, alloyed with chrome, molybdenum, manganese, etc. Titanium is used as Grade 2 quality for dental purposes. As well as the dental casting alloys, high purity electroplated gold (99.8 wt.‐%) is used in dental technology. This review discusses the corrosion behavior of metallic dental materials with saliva in “in vitro” tests and the influence of alloy components on bacteria (Lactobacillus casei and Streptococcus mutans). The test results show that alloys with high gold content, cobalt‐based alloys, titanium, and electroplated gold are suitable for use as dental materials.     

Designing and Selection of Mixed Sampling Plan with Chain Sampling as Attribute Plan

This paper deals with the operating procedure of mixed acceptance sampling plans with chain sampling as attribute plan. The operating characteristics function and other associated measures of the plan are provided. The plan is designed through AQL and IQL. Tables are constructed for easy selection of the plan. Illustrations are also provided.     

Design and Evaluation of Tinidazole Dental Implants

Tinidazole dental implant was formulated, in vitro release, stability and in vivo therapeutic efficacy of these dental implants were evaluated. Tinidazole dental implant had efficient antibacterial activity with 400 times decreased dose.     

牙齿形态图像的记录与鉴定

在现代法庭科学中，人体特征识别主要采用下列四种技术：指纹识别、虹膜纹识别、DNA技术和牙齿形态识别。指纹载体是综合性有机物，虹膜是软组织，在重大灾难性案件中，他们极易毁坏，且我国尚未建立非犯罪人口档案库。DNA技术虽然鉴定精确，但成本高，检验周期较长，因此三种技术都有不足之处。相比之下牙齿形态鉴定法效果较好，本文对此作详细介绍。     

Balancing accountability and improvement: a case study from Massachusetts

BACKGROUND: The Massachusetts Health Quality Partnership (MHQP), a coalition of health care providers and insurers, and business and government organizations, conducted a voluntary statewide survey about patients' experiences with inpatient care at Massachusetts hospitals in 1998, and made the results public. METHODS: MHQP contracted with The Picker Institute (Boston) to conduct the statewide survey about seven dimensions of care for adult medical, surgical, and maternity patients at 58 hospitals across Massachusetts. The communications strategy for public report release was designed to promote fair reporting by the news media and emphasize the improvement goals of performance measurement above evaluation. Along with critical agreements on report design, trial surveys, advertising, and commitments from coalition members about the use of survey results, these measures sought to drive out fear of participation and unfair evaluation. RESULTS: Statewide news media coverage reflected the project's communications goals. Editorial praise for the report was widespread. The project stimulated numerous hospital quality improvement efforts and focused hospital leaders on the need to improve patients' experiences with hospital care. All participating hospitals voluntarily renewed their enrollment for a third survey and public report cycle, and new hospitals joined the project. DISCUSSION: Voluntary public release of performance information by health care providers is possible when the risks, motivations, rewards, and penalties of measurement and public reporting are understood and carefully managed. The goals of public accountability reporting will be realized sooner when it is wedded to the spirit of continuous quality improvement and when providers are engaged as partners at every step of the measurement and reporting process.     

Viscoelasticity of Dental Hard Tissues

Strength of Materials - The results of a study of the mechanical properties of dental hard tissues by nanoindentation are presented. With quasi-static nanoindentation, the analysis of the Berkovich...     

关于加速推进我国"十四五"新材料产业高质量发展的几点思考

材料是科技和产业发展的基础和先导.作为战略性基础产业的新材料是各国科技竞争的关键领域和研发焦点.目前我国新材料产业虽已初具规模,但部分关键新材料在原始创新和"卡脖子"技术上依然需依赖进口,或存断链风险.目前,我国"十四五"新材料发展的征程已经开启,在加速推进新材料产业高质量发展的道路上,新材料产业发展命运共同体整装待发,经过科研人员的不断创新探索,终将走出一条材料创新强国之路.     

Zirconium Alloys for Orthopaedic and Dental Applications

Zirconium alloys for biomedical applications are receiving increasing attention due to their two unique properties: 1) the formation of an intrinsic bone‐like apatite layer on their surfaces in body environments, and 2) better compatibility with magnetic resonance imaging (MRI) diagnostics due to their low magnetic susceptibility, as well as their overall excellent biocompatibility, mechanical properties, and bio‐corrosion resistance. In particular, since both of the MRI quality and speed depend on magnetic field strength, there is a compelling drive for use of high magnetic field strength (>3 Tesla) MRI systems. This paper provides a comprehensive review of the characteristics of commercially pure (CP) Zr and Zr‐based alloys as orthopaedic and dental implant materials. These include their 1) phase transformations; 2) unique properties including corrosion resistance, biocompatibility, magnetic susceptibility, shape memory effect, and super‐elasticity; 3) mechanical properties; 4) current orthopaedic and dental applications; and 5) the d‐electron theory for Zr alloy design and novel Zr‐alloys. The mechanical properties of Zr‐based bulk metallic glasses (BMGs) and their application as implant materials are also assessed. Future directions for extending the use of Zr‐alloys as orthopaedic and dental implants are discussed.