加强计量过程管理 提高计量效益

文章以加强计量过程管理运作能力为基础,叙述了石钢公司在计量管理过程的设计中如何将生产周期、生产率、成本控制和外部顾客、供应商、合作伙伴的需要等内容进行充分分析、运作,来达到提高计量效益的目的。     

法定计量检定机构标准化建设刍议

旧的运作机制是制约国有企事业单位发展的一个共性问题,法定计量检定机构也不例外。随着检定/校准市场的放开,大量民营计量检定机构进入检定/校准市场,法定计量检定机构需进行体制机制创新,以在激烈的市场竞争中立于不败之地。笔者总结了法定计量检定机构标准化运作过程中亟需加以重视的关键事项,提出标准化十则,供业界参考。     

以数据管理为中心开拓计量管理新途径

2000年是跨入21世纪的第一年,面对严峻的经济形势与新的挑战,武钢计量工作在新一年的指导思想是:以计量数据管理为中心,以有效的测量设备运行、检修、备件及量值溯源管理为保障,通过追求技术进步,深化科学管理,脚踏实地的为公司的生产提供及时可靠的计量数据,努力实现武钢各种物料、能源投入与产出的平衡,形成符合国际国内市场需求的武钢计量管理运作体系.为此我们制定了2000年武钢计量工作目标.     

完善检测体系巩固认证成果

1999年 12月 3日锦州铁合金 (集团 )有限责任公司通过辽宁省技术监督局评审员现场评审 ,进入ＩＳＯ10 0 12计量标准认证合格企业行列整整一年了。一年来 ,我们的计量工作不满足于仅是符合国际计量标准模式的基本要求 ,而是注重计量体系的良性运作 ,在计量工作满足生产经营预期使用要求的过程中 ,建立了自我发现问题、自我改善和自我改进的机制 ,对已经查出或潜在不合格项作出纠正和预防措施 ,使计量体系步入良性循环 ,巩固了认证成果。1　定期内审自我发现问题公司计量认证半年后 ,企业主管部门组织企业内部审核员以计量管理手册和程序文件…     

贯彻JJF1069-2007考核规范持续改进管理体系的有效性

本文阐述了计量机构贯彻新版考核规范,管理体系运作方面持续改进工作的应用.     

中铝山东运用前沿科技提高物资计量水平

中国铝业山东分公司通过不断完善由其自主开发适合企业现行管理运作模式的“物资计量网络智能远程操作系统”．实现了区域性物资计量网络智能远程操作，使计量过程标准化、规范化、程序化，收到良好的工作效果和显著的经济效益。     

建立现代企业制度必须加强计量管理

文章结合大量企业实例，阐述了计控一体化、加强计量管理对于建立现代企业制度、提高企业经济效益的重要性。首次提出了计量功能全程化、管理体系科学化、运作综合化、手段现代化的企业计量工作“四化”目标。     

“公平”让百姓活得更踏实

计量是国民经济的重要基础。计量在整个社会生活当中的作用犹如机器运行中润滑油的作用,离开计量,科技、经济和社会都无法正常运作,更不要说发展。     

至诚自信知善--广州市计量测试所所长周伦彬

在国内计量系统，长期在一线从事专业技术工作并担任单位主要领导，而且还对计量技术机构的运作与管理有着自己深刻而独到见地的人并不多，广州市计量测试所所长周伦彬就算是其中之一了。     

计量确认对医院管理的促进作用

测量设备的计量确认是对医院计量管理的作用进行评价,计量确认共包含三个级别：计量合格确认、计量保证确认、管理体系确认,它是从总体上对医院计量管理的组织机构、管理制度、管理指标、运行状态等进行评审,其目的是使医院计量管理按制度化要求运作,     

检定和校准证书的异同与应用

本文介绍了检定和校准以及证书的两点相同、五点不同之处,说明了对检定证书和校准证书的正确应用。     

Synthesis and luminescent properties of alkali-metal and ammonium fluorosulfatozirconates and fluorosulfatohafnates

We have synthesized a variety of alkali-metal and ammonium fluorosulfatometallates (titanates, zirconates, and hafnates). The alkali fluorosulfatozirconates and fluorosulfatohafnates have been shown to exhibit efficient roentgenoluminescence (RL) in the UV through visible spectral region, with a maximum at 390–440 nm. Their RL spectra depend significantly on their composition (cation, anion, and water content), coordination of KF and K₂SO₄, and relative amounts of fluorine and SO₄ groups. We have examined the effect of heat treatment on the RL of these compounds. The rubidium and cesium fluorosulfatozirconates Rb₃Zr₂F₉SO₄ · 2H₂O, Cs₂ZrF₂(SO₄)₂ · 2H₂O, Cs₈Zr₄F₂(SO₄)₁₁ · 16H₂O, and Cs₂ZrF₄SO₄ offer the most efficient RL.     

Heat and Mass Transfer and Modeling and Prediction of Environmental Catastrophes

Basic definitions and concepts of the physicomathematical theory of natural catastrophes are given. Possibilities of mathematical modeling of natural and technogenic catastrophes are discussed in the context of the theory of heat and mass transfer and the mechanics of reacting media. The importance of taking into account conjugate heat and mass exchange in modeling catastrophes is emphasized. A formula for evaluating the probability of a collisional catastrophe is given.     

凝固科学技术与材料

从凝固科学与实践发展的角度介绍了当前凝固材料体系的基本框架和凝固科学主要发展阶段的基本理论。作为材料科学与工程的基本组成，凝固科学技术正在现代科学理论的基础上针对传统材料的改性提高和新材料的发展需求，以控形、控构、控性为目标开展优质铸件的定向、晶体生长、快凝、深过冷及各种新型和超常领域凝固过程的研究，并介绍了其中某些方面和展望了可能的发展趋势。     

Multi-ferroic and magnetoelectric materials and interfaces

The existence of multiple ferroic orders in the same material and the coupling between them have been known for decades. However, these phenomena have mostly remained the theoretical domain owing to the fact that in single-phase materials such couplings are rare and weak. This situation has changed dramatically recently for at least two reasons: first, advances in materials fabrication have made it possible to manufacture these materials in structures of lower dimensionality, such as thin films or wires, or in compound structures such as laminates and epitaxial-layered heterostructures. In these designed materials, new degrees of freedom are accessible in which the coupling between ferroic orders can be greatly enhanced. Second, the miniaturization trend in conventional electronics is approaching the limits beyond which the reduction of the electronic element is becoming more and more difficult. One way to continue the current trends in computer power and storage increase, without further size reduction, is to use multi-functional materials that would enable new device capabilities. Here, we review the field of multi-ferroic (MF) and magnetoelectric (ME) materials, putting the emphasis on electronic effects at ME interfaces and MF tunnel junctions.     

CellML and associated tools and techniques

We have, in the last few years, witnessed the development and availability of an ever increasing number of computer models that describe complex biological structures and processes. The multi-scale and multi-physics nature of these models makes their development particularly challenging, not only from a biological or biophysical viewpoint but also from a mathematical and computational perspective. In addition, the issue of sharing and reusing such models has proved to be particularly problematic, with the published models often lacking information that is required to accurately reproduce the published results. The International Union of Physiological Sciences Physiome Project was launched in 1997 with the aim of tackling the aforementioned issues by providing a framework for the modelling of the human body. As part of this initiative, the specifications of the CellML mark-up language were released in 2001. Now, more than 7 years later, the time has come to assess the situation, in particular with regard to the tools and techniques that are now available to the modelling community. Thus, after introducing CellML, we review and discuss existing editors, validators, online repository, code generators and simulation environments, as well as the CellML Application Program Interface. We also address possible future directions including the need for additional mark-up languages.     

热交换器的分类及优缺点分析

热交换器是将不同温度介质之间的热量通过热传导的形式,由高温介质传递给低温介质,使介质达到生产所需温度的工艺设备,也可作为一种节能设备使用.通过对不同热交换器的结构分析,总结不同热交换器的优缺点、适用环境,为生产工艺设计人员及设备制造单位在选择可降低能耗、提高效率的设备上提供参考.