基于RFID技术的板式定制家具企业生产过程监管系统研究

针对板式定制家具企业生产过程信息不及时性、模糊性、临时性等问题,分析了板式车间生产流程及ERP系统架构。基于RFID技术的应用设想,在拟定RFID监管系统架构的同时对系统监管范围进行划分,从而构建出一个适用于板式定制家具企业的信息采集及反馈的监管系统架构方案。通过构建板式定制家具企业生产车间RFID监管系统,可以达到实时监控板件加工过程及采集生产过程信息和车间生产异常信息的目的,从而提高管理人员对车间的管控能力,并保障生产计划的灵活性和达成率。     

RFID方车定位系统的研究与应用

针对目前针织厂存在的产品堆积量大、车间拥堵、现场乱放及方车查找困难等问题,研究并应用RFID方车定位系统。概述该系统的方案设计、系统组成、技术原理、技术指标及功能。介绍RFID方车定位系统的登录方式、软硬件以及具体功能和应用情况,主要功能包括系统管理功能、查询功能、预判功能和用户管理功能。最后总结应用RFID方车定位系统的收益效果。该系统与传统查找方车方式相比,查找合格率提升,出错率和工作量降低,能够快速准确地实现方车定位,提升效率。     

轮转网印在RFID标签印刷中的应用

1.印刷 RFID 标签天线的简单工艺采用轮转网印方式印刷 RFID 天线是非常高效的工艺,也是惟一一种可以使印刷墨层厚度从几微米到300微米之间变化的工艺,轮转网印的墨层厚度是胶印、柔性版印刷、凹印墨层厚度的数十倍。Stork 是世界著名的轮转网印公司,有40多年的实践经验,形成了一套能够快速、高效印刷 RFID 标签天线的系统。该系统支持传统的印刷 RFID 标签天线工艺,即腐蚀、电镀或直接印刷。     

机械加工行业数字化车间的开发与研究

针对济源市机械加工企业生产中存在的问题,构建了机械加工行业数字化车间管理系统,提出了具体的APS高级计划排程,并利用RFID结合KW21Z技术具体设计出了制造车间物联网系统平台,研究开发适应机械加工行业车间生产特点的数字化车间管理系统,实现机械加工行业生产过程的数字化,全面提高车间生产效率,优化生产工序,降低了物料消耗和企业成本,促进了信息化和工业化深度融合。     

细纱车间制造执行系统的设计

开发用于管理细纱车间生产的制造执行系统。通过对纺织企业细纱车间的生产管理特点的分析,结合MES的管理理念,对系统的体系结构、数据流程、主要功能模块进行了设计,并阐述了MES与ERP及下位机控制系统之间的关系,MES与ERP系统的集成技术、MES与下位机的通信技术。指出:该系统实现了计划层和控制层之间建立起沟通的桥梁和纽带,为细纱车间提供快速反应及精细化的生产管理系统,有助于提高产品质量和劳动生产率、降低资源能源消耗,实现先进制造的管理要求。     

艺术收藏品采用RFID防伪

Art Channel GauerIes是一家专注于艺术品和体育纪念品市场的直销公司,该公司宣布将采用RFID技术对其产品进行防伪,同时购买了一套RFID软硬件,计划将RFID追踪和防伪软件集成进到企业的EPR系统。     

基于 RFID 技术的超市自动计费付费系统的设计与开发

作为基于 RFID 的超市管理系统解决方案的一部分，提出一种新的模式设计：结构模型、RFID通道、防碰撞及勘误机制、结算软件功能结构、数据库设计等，该系统最重要的设计是 RFID 通道设计及勘误算法的设计，在 RFID尚未普及零售业的当前，具有较强的前瞻性、创新性和指导性。     

基于电子标签技术的物资管理系统

无线射频识别技术(RFID)已成为现代物资管理的热点技术,对物资管理的信息化发展具有十分重要的作用。现提出一种基于RFID电子标签的物资管理系统,系统采用RFID电子标签、打印机模块、数传电台、GPRS等模块来实现物资管理,利用RFID电子标签做货物识别,利用打印机模块来现场打印货物信息,用数传电台和GPRS模块与PC机进行远程通信。现给出了系统的总体设计方案,介绍了系统的硬件设计部分的各个模块及其作用,软件系统的工作流程。该系统可节省物资管理过程中大量的时间和人力,提高了工作效率。     

射频识别技术助力史丹利百得提高工作效率

近日,有源射频识别解决方案提供商Aero Scout工业为其母公司史丹利百得提供了一套物联网系统。该解决方案让史丹利百得提高了工作效率以及产品质量并减少了现场库存。 由于基于WiFi的RFID技术的使用,车间主管现在可以实时了解公司五条生产线的状况。当现场出现物料紧缺、机器故障、终检未通过等状况时,系统还将自动发送短信给管理人员。     

滤棒防差错监控系统的设计

为实现滤棒供给过程的实时监控,基于WINCC平台,通过集成PLC、RFID、OPC等关键技术,开发了滤棒防差错监控系统。通过对滤棒使用的全过程进行数据采集、处理、显示和监控,实现了滤棒交换中心配置状态与滤棒实物的实时比较和状态显示,并能将监控界面远程发布到各末端分布式节点。应用结果表明:该系统实现了生产车间滤棒发送工艺过程的实时防差错管理,对于提升卷烟企业的精益管理水平取得了较好的效果,也能为食品工业流程制造过程的防差错提供很好的借鉴。     

Textural Properties of Cold-set Gels Induced from Heat-denatured Whey Protein Isolates

A 9% whey protein (WP) isolate solution at pH 7.0 was heat-denatured at 80°C for 30 min. Size-exclusion HPLC showed that native WP formed soluble aggregates after heat-treatment. Additions of CaCl2 (10–40 mM), NaCl (50–400 mM) or glucono-delta-lactone (GDL, 0.4–2.0%, w/v) or hydrolysis by a protease from Bacillus licheniformis caused gelation of the denatured solution at 45°C. Textural parameters, hardness, adhesiveness, and cohesiveness of the gels so formed changed markedly with concentration of added salts or pH by added GDL. Maximum gel hardness occurred at 200 mM NaCl or pH 4.7. Increasing CaCl2 concentration continuously increased gel hardness. Generally, GDL-induced gels were harder than salt-induced gels, and much harder than the protease-induced gel.     

Occurrence of bisphenol-F-diglycidyl ether (BFDGE) in fish canned in oil

The levels of bisphenol-F-diglycidyl ether (BFDGE) were quantified as part of a European survey on the migration of residues of epoxy resins into oil from canned fish. The contents of BFDGE in cans, lids and fish collected from all 15 Member States of the European Union and Switzerland were analysed in 382 samples. Cans and lids were separately extracted with acetonitrile. The extraction from fish was carried out with hexane followed by re-extraction with acetonitrile. The analysis was performed by reverse phase HPL C with fluorescence detection. BFDGE could be detected in 12% of the fish, 24% of the cans and 18% of the lids. Only 3% of the fish contained BFDGE in concentrations considerably above 1mg/kg. In addition to the presented data, a comparison was made with the levels of BADGE (bisphenol-A-diglycidyl ether)analysed in the same products in the context of a previous study.     

Contribution of European research to risk analysis

The European Commission's, Quality of Life Research Programme, Key Action 1—Health, Food & Nutrition is mission-oriented and aims, amongst other things, at providing a healthy, safe and high-quality food supply leading to reinforced consumer confidence in the safety of European food. Its objectives also include the enhancing of the competitiveness of the European food supply. Key Action 1 is currently supporting a number of different types of European collaborative projects in the area of risk analysis. The objectives of these projects range from the development and validation of prevention strategies including the reduction of consumers risks; development and validation of new modelling approaches; harmonization of risk assessment principles, methodologies, and terminology; standardization of methods and systems used for the safety evaluation of transgenic food; providing of tools for the evaluation of human viral contamination of shellfish and quality control; new methodologies for assessing the potential of unintended effects of genetically modified (genetically modified) foods; development of a risk assessment model for Cryptosporidium parvum related to the food and water industries; to the development of a communication platform for genetically modified organism, producers, retailers, regulatory authorities and consumer groups to improve safety assessment procedures, risk management strategies and risk communication; development and validation of new methods for safety testing of transgenic food; evaluation of the safety and efficacy of iron supplementation in pregnant women; evaluation of the potential cancer-preventing activity of pro- and pre-biotic ('synbiotic') combinations in human volunteers. An overview of these projects is presented here.     

低温带皮菜籽粕微粉的不同粒级部分的功能特性

为研究低温带皮菜籽粕微粉的不同粒级部分的功能特性,以经低温脱脂的带皮菜籽粕为原料,经微粉碎后筛分成212~425μm、150~212μm和106~150μm的3个不同粒级的微粉样品,检测这些样品的吸水性、吸油性、乳化性和乳化稳定性、蛋白质体外消化率。结果表明:1 3个不同粒级的微粉样品之间的粗纤维含量存在显著差异,表明三者的结构组成成分有一定差异。23个微粉样品的乳化活性和乳化稳定性随粒度级别的减小而显著增加(P0.01)。33个微粉样品的蛋白质体外消化率随粒度级别的减小而显著增加(P0.01)。4不同粒级带皮菜籽粕微粉样品的吸水性与吸油性受其结构组成物质不同和粒度的双重影响,与粒度的相关性不明显。     

Microbiology of food taints

Fresh and processed foods are often spoilt by the presence of undesirable flavours and odours caused by microbial action. The aim of this paper is to review the current knowledge of microbiologically induced taints that occur in a wide range of foodstuffs, including meats, poultry, fish, crustaceans, milk, dairy products, fruits, vegetables, cereals and cereal products. Examples have been chosen where the compounds responsible for the taint have been identified and sufficient data obtained to demonstrate the involvement of microorganisms. However, in some cases the full identity of the causative organism may not have been elucidated. The types of microorganisms covered by this review include bacteria, fungi, yeasts, actinomycetes and cyanobacteria. Although cyanobacteria do not in general infect foods, their presence in aqueous systems and water supplies can lead to off-flavours in aquatic organisms and processed foodstuffs. Several examples of each of these processes are discussed. Wherever possible, the likely biosynthetic pathway used by the microorganism to produce the offending compound in a foodstuff is indicated.     

Analysis for organic residues from aids to polymerization used to make plastics intended for food contact

Polymers intended for food contact use have been analysed for organic residues which could be attributed to a range of substances employed as polymerization aids (e.g. initiators and catalysts). A wide range of polymers was extracted with solvents and the extracts analysed by gas chromatography-mass spectrometry (GC-MS). The overwhelming majority of substances identified were not derived from aids to polymerization but were oligomers, additives and adventitious contaminants. However, a small number of substances were identified as initiator residues. These included tetramethylsuccinonitrile (TMSN) which was observed in two polymers and it derived from recombination of two azobisisobutyronitrile (AIBN) initiator radicals. Methyl benzoate, benzoic acid, biphenyl and phenyl benzoate were detected in one poly(methyl methacrylate) sample and in two polyvinylchlorides and they are thought to be derived from benzoyl peroxide initiator. TMSN was subsequently targeted for analysis of poly-(methyl methacrylate) plastics using proton nuclear magnetic resonance spectrometry (¹     

Tests of potential functional barriers for laminated multilayer food packages. Part II: Medium molecular weight permeants

Experiments were performed to characterize the kinetics of the permeation of different medium molecular weight model permeants: bisphenol A, warfarin and anthracene, from liquid paraffin, through a surrogate potential functional barrier (25 microns-thick orientated polypropylene--OPP) into the food simulants olive oil and 3% (w/v) acetic acid. The characterization of permeation kinetics generally observed the permeation models previously reported to explain the experimental permeation results obtained for a low molecular weight group of model permeants. In general, the model permeants exhibited behaviour consistent with their relative molecular weights with respect to (a) the time taken to attain steady-state permeation into the food simulant in which they were more soluble, (b) their subsequent steady-state permeation rates, and (c) their partition between liquid paraffin and the OPP membrane.     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. I: Interlaboratory studies of methods of analysis

This paper describes the first part of a project undertaken to develop mussel reference materials for Paralytic Shellfish Poisoning (PSP) toxins. Two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin (STX) and decarbamoyl-saxitoxin (dc-STX) in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the second part of the project: the certification exercise. In the first study, 18 laboratories were asked to measure STX and dc-STX in rehydrated lyophilized mussel material and to identify as many other PSP toxins as possible with a method of their choice. In the second interlaboratory study, 15 laboratories were additionally asked to determine quantitatively STX and dc-STX in rehydrated lyophilized mussel and in a saxitoxin-enriched mussel material. The first study revealed that three out of four postcolumn derivatization methods and one pre-column derivatization method sufficed in principle to determine STX and dc-STX. Most participants (13 of 18) obtained acceptable calibration curves and recoveries. Saxitoxin was hardly detected in the rehydrated lyophilized mussels and results obtained for dc-STX yielded a CV of 58% at a mass fraction of 1.86 mg/kg. Most participants (14 out of 18) identified gonyautoxin-5 (GTX-5) in a hydrolysed extract provided. The first study led to provisional criteria for linearity, recovery and separation. The second study revealed that 6 out of 15 laboratories were able to meet these criteria. Results obtained for dc-STX yielded a CV of 19% at a mass fraction of 3.49mg/kg. Results obtained for STX in the saxitoxin-enriched material yielded a CV of 19% at a mass fraction of 0.34mg/kg. Saxitoxin could not be detected in the PSP-positive material. Hydrolysis was useful to confirm the identity of GTX5 and provided indicative information about C1 and C2 toxins in the PSP-positive material. The methods used in the second interlaboratory study showed sufficiently consistent analysis results to undertake a certification exercise to assign certified values for STX and dc-STX in lyophilized mussel.     

The Ministry of Environmental Protection Issued "Feasible Technology Guidelines for Pollution Prevention and Control in Wood Pulping Process of the Paper Industry (Trial)" and Two Other Guiding Technical Documents

On December 27t＂, 2013, the Ministry of Environmenta Protection announced that, in order to implement ＂The Environmental Protection Law of the People＇ s Republic of China＂, improve the working system in environmenta protection technologies, and promote technologica advancement in pollution prevention, the Ministry of Environmental Protection sponsored the formulation of three guiding technical documents including ＂Feasible Technology Guidelines for Pollution Prevention and Contro n Wood Pulping Process of the Paper Industry （Trial）＂     

1~(st) Intelli-Tissue~ EcoEc Tissue Machine Supplied by PMP Group Successfully Put into Operation in China

正On April 29th,2014,Intelli-Tissue EcoEc tissue machine supplied by PMP Group successfully put into operation at Hebei Xuesong Paper Co.,Ltd.,this is the first such kind of paper machine of PMP Group in China.