钒铁中硅、锰、铝、磷ICP-AES分析方法研究

研究了应用电感耦合等离子体光谱法(ICP-AES法)测定钒铁中硅、锰、铝、磷元素,进行了试样分解试验,考察了基体、共存元素对被测元素的影响,确定了分析谱线、最佳工作参数,建立了同时测定硅、锰、磷、铝元素的分析方法,同时还进行了加标回收试验、精密度试验及准确度试验.     

产品零件的标准化策略（下）

本文研究提出了产品零件的标准化策略,分析了零件标准化策略的目的和利益,构建了零件资源资格认定与管理、零件资源使用、新零件研制、零件变更的零件标准化策略关系,论述了零件资源来源、资格认定、资源建设、资源管理的内容,建立了零件资源使用的管理关系,分别构建了零件资源资格认定和新零件研制的管理程序,分析了零件资源使用与标准化的关系,论述了零件替换、代替、取代的三种零件变更类型及其实施模式,论述了零件标准化策略应用的要求。     

全面收益观在我国新会计准则体系中的应用

财政部发布的新企业会计准则体系反映了全面收益现在我国会计准则体系中的应用,重新定位了财务报告目标、转变了收益计量的观念、引入了利得和损失的概念、引入了公允价值计量属性、增加了所有者权益变动表。     

采用VRML的虚拟校园交互功能的实现

以某虚拟校园交互功能的实现为例,从信息获取、虚拟场景交互控制出发,探讨了VRML与HTML通信、VRML与JavaScript、VrmlScript在HTML中通信等技术,实现了校园内的各种数据、属性、图形的查询,实现了虚拟环境的工具菜单,实现了场景对象的移动、删除、修饰等,从而丰富了虚拟校园的交互手段,方便了用户的操作.     

矿用链条、刮板、链轮、中部槽标准化研究

本文介绍了国内外矿用链条、刮板、链轮、中部槽的标准现状,并介绍了神东煤炭集团如何制定矿用链条、刮板、链轮、中部槽及相互之间的配套等标准情况,重点介绍了采取的工作措施和关键技术研究情况,阐述了制定链条、刮板、链轮、中部槽等标准的意义,提出了标准下一步发展建议。     

电流表,电压表,功率表半自动检定系统

本文介绍了应用微机实现“三表”的半自动检定系统的工作原理、结构框图、软件模块功能。它提高了检定效率、增加了检测功能、提高了检测准确度，避免了人为误差，同时规范了仪表检定资料的存档、备查工作，通过软件开发应用还可与其它智能仪器相配置，为提高检测质量与经济效益创造了良好条件。     

系列化的理论和设计研究（上）

系列化的理论关系主要包括系列化的概念、分类、数学模型、设计方法、经济性分析方法等内容。本文论述了系列化的概念和关系模型。给出了系列化较全面的分类关系,分别研究给出感觉系列、组数系列、等差系列、模数系列、等比系列、指数系列的数学模型,并深入讨论了各种系列的数学关系,研究了系列化的设计方法,分析了系列化的经济关系。     

通用化的理论和设计方法(上)

本文从理性的角度,深入论述了通用化的概念,建立了通用化的关系模型和数学模型,给出了通用化对象的联系方式,归纳了通用化的借用、继承、压缩、开发、编号、定标6种形成模式,分析了通用化对象的范围和层次,建立了7种通用化设计技术的普遍方法和应用例子,这有利于指导通用化设计技术的发展,从通用化的相对与绝对、时间与空间、有利与不利等方面,深入讨论了通用化的关系。     

平版胶印水样测试分析

对印刷机台的水质、润湿液进行了取样测试,测试了硬度、酸碱值、电导率等重要指标,对测试结果作了评价并提出了合理的建议.同时对润湿液酸碱值、电导率、硬度、酒精添加量、水温、环境温湿度对印刷过程及印品质量产生的影响作了分析,对PH值、电导率的测试方法作了简单介绍并说明了测试注意事项,供印刷企业参考使用.     

基于虚拟仪器的振动台综合参数测试系统开发

介绍了振动台综合参数测试系统的开发.设计采用了虚拟仪器的设计理念,以虚拟软件开发平台LabWindows/CVI和基于USB接口的外挂式数据采集装置建立了一套适合于便携测试的振动数据采集与分析系统,系统简化了测试的流程、降低了测试成本、提高了系统的集成度、方便了数据的管理与维护,具有高性能、低价格、强扩展、易携带特点,系统经测试证明完全达到设计要求.     

Analysis according to the change in structure of ultrasonic sensors and the change in pressure inside the tank for measurement of fuel amounts in compressed natural gas (CNG) tank

The present study is a fundamental research for precise measurement of fuel amounts in a compressed natural gas (CNG) tank where an analysis of receiving sensitivity was conducted as a result of changes in the contact surface shape in the number of piezoelectric element of the ultrasonic sensor as well as in the internal pressure of the tank. Experiments were conducted as a function of changes in the contact surface shape between the ultrasonic sensor and outside of the aluminum tank and in the number of piezoelectric element as well as in the internal pressure of the tank. According to the experimental results, it could be confirmed that the maximum receiving sensitivity value was increased by about 60 % when the contact surface shape of the transmission and receiving ultrasonic sensors compared with the ultrasonic sensor in the Line-Line shape selected as the reference model was changed to the surface. As a whole, the highest receiving sensitivity values were observed when the transmission sensor of surface shape produced as multiple piezoelectric elements and the receiving sensor of surface shape produced as a single piezoelectric element were used. It could be confirmed that receiving sensitivities were improved at the same voltage value as a result of changes in the contact surface shape of the ultrasonic sensor and in the number of piezoelectric elements.     

Exploitation of Localized Surface Plasmon Resonance

Recent advances in the exploitation of localized surface plasmons (charge density oscillations confined to metallic nanoparticles and nanostructures) in nanoscale optics and photonics, as well as in the construction of sensors and biosensors, are reviewed here. In particular, subsequent to brief surveys of the most‐commonly used methods of preparation and arraying of materials with localized surface plasmon resonance (LSPR), and of the optical manifestations of LSPR, attention will be focused on the exploitation of metallic nanostructures as waveguides; as optical transmission, information storage, and nanophotonic devices; as switches; as resonant light scatterers (employed in the different near‐field scanning optical microscopies); and finally as sensors and biosensors.     

Vibrating Quartz Fork—A Tool for Cryogenic Helium Research

Oscillating objects such as discs, piles of discs, spheres, grids and wires have been widely used in cryogenic fluid dynamics and in quantum fluids research since the discovery of superfluidity. A new addition are quartz tuning forks, commercially available frequency standards. We review their use as thermometers, pressure- and viscometers as well as their potential as generators and detectors of cavitation and turbulence in viscous and superfluid He liquids.      

2D and 3D photonic crystal materials for photocatalysis and electrochemical energy storage and conversion

This perspective reviews recent advances in inverse opal structures, how they have been developed, studied and applied as catalysts, catalyst support materials, as electrode materials for batteries, water splitting applications, solar-to-fuel conversion and electrochromics, and finally as photonic photocatalysts and photoelectrocatalysts. Throughout, we detail some of the salient optical characteristics that underpin recent results and form the basis for light-matter interactions that span electrochemical energy conversion systems as well as photocatalytic systems. Strategies for using 2D as well as 3D structures, ordered macroporous materials such as inverse opals are summarized and recent work on plasmonic–photonic coupling in metal nanoparticle-infiltrated wide band gap inverse opals for enhanced photoelectrochemistry are provided.     

Industry environmental processes: beyond compliance

This paper discusses systems of good environmental management, adopted by industry, which go beyond (rather than replace) compliance with laws and regulations, as part of the quality revolution impacting both global and local companies and plants. From environmental auditing to environmental management systems, industry is increasingly focusing not just on compliance with laws—as important as that might be—but on continuous improvement in environmental practices as a marketplace demand. Movement has occurred in three directions: towards (1) enforcement strategies, (2) trade relations, including environmental cooperation, and (3) marketing of diligence as an attractive asset in environmental conduct. Consequently, the responsible green approach is also developing rapidly. That approach among management systems should be encouraged by industry, governments, environmental groups, and the public as a positive process that enhances sustainability as well as giving a competitive edge to local economies. Mexico's embrace of good environmental management as it responsibly develops is exemplary for, and evidence of, its leadership of other Latin American countries, and for other countries, such as China, that are making strides in achieving growth and environmental safeguards.     

Replica-based crack inspection

Surface replication has been proposed as a method for crack detection in space-shuttle main engine flowliner slots. The results of a feasibility study show that examination of surface replicas with a scanning electron microscope can result in the detection of cracks as small as 0.005 inch, and surface flaws as small as 0.001 inch, for the flowliner material.     

MBE—Technology for nanoelectronics

Molecular beam epitaxy (MBE) is presented as a powerful and flexible technology for research and development (R&D) as well as for mass production of nanoelectronic structures, based on a huge variety of materials. Its historical background, basic properties, advantages—in particular the production potential—as well as some trends in the field are shown.     

冬季北方平房通风换气的数学模型

提出了一种解决冬季北方室内空气交换问题的优化数学模型,利用该模型对典型北方居室换气问题进行了实例计算。结果表明,该模型能取得通风换气最优解,为制定通风换气量的最小值提供依据,在保证室内空气质量的同时,尽量使流通的空气量最少,从而达到节约能源的目的。     

Compact energy storage enabled by graphenes: Challenges,strategies and progress

Storing as much energy as possible in as compact a space as possible is an ever-increasing concern to deal with the emerging “space anxiety” in electrochemical energy storage (EES) devices like batteries, which is known as “compact energy storage”. Carbons built from graphene units can be used as active electrodes or inactive key materials acting as porous micro- or even nano-reactors that facilitate battery reactions and play a vital role in optimizing the volumetric performance of the electrode and the battery. In this review, we discuss and clarify the key issues and specific strategies for compact energy storage, especially in batteries. The use of shrinkable carbon networks to produce small yet sufficient reaction space together with smooth charge delivery is highlighted as the simplest structure–function-performance relationship when used in supercapacitors and is then extended to overcome problems in compact rechargeable lithium/sodium/potassium batteries. Special concerns about cycling stability, fast charging and safety in compact batteries are discussed in detail. Strategies for compact energy storage ranging from materials to electrodes to batteries are reviewed here to provide guidance for how to produce a compact high energy battery by densifying the electrodes using customized carbon structures.     

反设计的运用及现实意义

通过对实际产品设计的案例分析,初步阐述了反设计的运用规律,及反设计作为设计方法和设计观2个层面的现实意义.而其意义的考察,进一步凸现反设计对于目前物质世界的重要性,和人文层面的涵义.