Mapping the IEC 62264 models onto the Zachman framework for analysing products information traceability: a case study

In order to face new regulation directives regarding the environment and also for improving their customer relationship, enterprises have to increasingly be more able to manage their product information during the entire lifecycle. One of the objectives among others in this paper is to deal with product traceability along the product lifecycle. To meet this objective, the information system has to be designed and, further built in such a way all information regarding products is recorded. The IEC 62264 standards define generic logical models for exchanging product and process information between business and manufacturing levels of enterprise applications. Thus, it can be a base for product information traceability. However, its complexity comes from the fact it mixes conceptual and implementation details while no methodology exists that defines how to instantiate it. Product traceability is then needed to increase its abstraction level in order to concentrate on its concepts and managing its application by providing a methodology for its instantiation. In this paper, we propose to map the IEC 62264 standard models to a particular view of Zachman framework in order to make the framework concrete as a guideline for applying the standard and for providing the key players in information systems design with a methodology to use the standard for traceability purposes.     

基于单片机的分体太阳能热水器测控系统

介绍了低功耗8位单片机P89LPC930和数字温度传感器LTM8871的基本特性。针对分体式太阳能热水器的使用要求,结合RC振荡电路、多功能时钟模块、固体继电器、4位LED显示模块,设计了一个小型测控系统;给出了系统框图及软件流程图。利用P89LPC930单片机的低功耗和20mA驱动能力以及LTM8871的单线接口方式,实现了整个系统的超低功耗,结构简单,性能稳定,经济实用。     

Examining the consistency of products derived from various ocean color sensors in open ocean (Case 1) waters in the perspective of a multi-sensor approach

During its lifetime, a space-borne ocean color sensor provides world-wide information about important biogeochemical properties of the upper ocean every 2 to 4 days in cloudless regions. Merging simultaneous or complementary data from such sensors to obtain better spatial and temporal coverage is a recurring objective, but it can only be reached if the consistency of the sensor-specific products, as delivered by the various Space Agencies, has first been carefully examined. The goal of the present study is to provide a procedure for establishing a coherency of open ocean (Case-1 waters) data products, for which the various data processing methods are sufficiently similar. The development of the procedure includes a detailed comparison of the marine algorithms used (after atmospheric corrections) by space agencies for the production of standard products, such as the chlorophyll concentration, [Chl], and the diffuse attenuation coefficient, K_d. The MODIS-Aqua, SeaWiFS and MERIS [Chl] products agree over a wide range, between ∼ 0.1 and 3 mg m^− 3, whereas increasing divergences occur for oligotrophic waters ([Chl] (from 0.02 to 0.09 mg m^− 3). For the K_d(490) coefficient, different algorithms are in use, with differing results. Based on a semi-analytical reflectance model and hyperspectral approach, the present work proposes a harmonization of the algorithms allowing the products of the various sensors to be comparable, and ultimately, meaningfully merged (the merging procedures themselves are not examined). Additional potential products, obtained by using [Chl] as an intermediate tool, are also examined and proposed. These products include the thickness of the layer heated by the sun, the depth of the euphotic zone, and the Secchi disk depth. The physical limitations in the predictive skill of such downward extrapolations, made from information concerning only the upper layer, are stressed.     

铀微粒定位及转移技术的研究

在裂变径迹法筛选铀微粒的技术中,热中子辐照后如何实现微粒与径迹的对应以及微粒的转移是非常关键的步骤。采用激光烧蚀仪在介质膜与裂变径迹基片分离前刻蚀出标记,根据标记形状及微粒间的相对位置可实现微粒与径迹的对应关系,不需要介质膜与径迹片复位。采用微区溶解的方法,显微镜下手工挑出微粒并用热表面电离质谱仪对其同位素比值进行了分析。     

Estimated output parameters at high neutron flux values for an experimental fission electric cell

The output parameters of an experimental fission electric cell (FEC) operating in the current generator mode have been estimated for the values of the neutron flux existing in the nuclear reactors. The estimation has been performed on the basis of the experimental values obtained in an investigation carried out at the Central Institute of Physcis (CIP) in Bucharest, Romania, concentrating on direct nuclear fission energy conversion into electrical energy. These experimental values are higher by orders of magnitude than those reported by other laboratories. The results of the estimation indicate that hundreds of microamperes, hundreds of kilovolts and hundreds of watts could be delivered by an FEC containing 1g of ²³⁵U and irradiated in a thermal neutron flux of 1.4 × 10¹³ neutron cm^?2s^?1. The research demonstrates the feasibility of efficient fission electric cells as potentially usable components in nuclear reactors.     

Needle in a haystack catalysis

A new configuration of catalyst loading in the Temporal Analysis of Products (TAP) reactor is presented. It is a single Pt particle packed in a bed with approximately 100,000 inert quartz particles. In TAP studies, the single particle configuration was proven to be sensitive enough to monitor and compare kinetic characteristics of the same catalyst particle at both high vacuum and atmospheric pressures. Catalytic CO oxidation reaction over platinum was used to illustrate these new possibilities. In the TAP single particle experiments under high vacuum conditions, a single particle provides high conversion (up to a total conversion of 95%) despite the catalyst particle occupies less than 0.1% of the total reactor volume. This phenomenon was proven in a variety of pulse response experiments. A mathematical probabilistic theory of this counterintuitive phenomenon will be published in the next paper. Also, an interesting similarity was found from both TAP vacuum and atmospheric pressure data, i.e. both sets of data are characterized by a “turning point” at the same temperature of 170 °C indicating a transition from an O₂ dominated regime to a CO dominated regime. This observation of pressure independent characteristic of the Pt particle creates a new possibility for bridging across the pressure gap.     

Formation of Oxamic Acid During Drinking Water Treatment

Although oxamic acid has been identified as an ozone oxidation product from several precursor compounds, concentrations for drinking water have not been published previously. This study shows results from a full-scale drinking water treatment plant, noting that the mean concentrations for oxamic acid reached 21.3 μg/L after ozonation and prior to filtration. Subsequent multiple-layer filtration removed 85% of oxamic acid on average, and mean concentrations in drinking water were 2 μg/L. Up to 5.9% of the oxamic acid found in ozone-treated groundwater may be formed from Chloridazon metabolites.     

Unity3d产品虚拟展示技术的研究与应用

本文是在介绍虚拟现实技术的基础上,阐述应用专业引擎Unity3D为工具,实现虚拟产品模型展示的设计流程以及各个环节,最终开发出基于网络的,数据精准．表现力强,交互性强的工业产品虚拟展示应用系统。通过搭建一个跨越时空局限性的交流互动平台,实现企业与消费者之间更加方便快捷的产品信息交流,满足信息化时代人们对高速高效电子商务的需求。     

"肉制品加工关键技术研究与新产品开发"课题简介

“肉制品加工关键技术研究与新产品开发”是我国科技部“十五”攻关课题(项目编号：2001BA501A11)。该课题针对我国肉品产量连续14年位居世界第一，但肉类加工率低，高档肉制品缺乏的实际情况，对影响我国冷却肉和发酵肉制品加工中的关键技术问题进行了分析研究，并针对这些关键技术进行了3年的联合攻关，以提高我国肉类加工产业的整体水平。通过该课题成果的实施，目前已使冷却肉的初始茵数控制在10^3～10^4CFU/g；冷却肉在0～℃二的情况下，货架期和颜色稳定期达20d以上；冷却肉汁液流失率控制在1．5％以内；建立推广了6家生猪屠宰示范基地；选育了17种适用于不同类型发酵肉制品并具有自主知识产权的优良微生物发酵剂；研制开发了10种适合我国人民消费习惯的中式发酵肉制品及12种具有我国特色的西式发酵肉制品，并在浙江金华建立一条年产1000t发酵肉制品示范生产线。课题组已获国家发明专利4项，分别是一种复合发酵剂(专利受理号03126226．0)、2种单菌株发酵剂(专利受理号03126225．2、03126227．9)、一种食品脱毛剂(专利受理号03126224．4)。该课题对我国肉制品加工现代化提供了技术支撑。