意大利沃拉公司研制自动化调色系统

最近,意大利沃拉公司开发出自动化调色系统。该系统分为自动化称料系统、传送与仓储系统、染料溶解系统以及染色机的配送系统。该系统具有以下特点：自动化称料系统与染料自动工艺称料装置连接,确保染料配比精确;传送与仓储系统适合于大批用量的染色设备,使染料称重、     

成像系统的探讨

成像系统指的是以某种信息存储(记录)材料为成像介质,将空间信息成像于该介质上的设备系统。纵观整个摄影发展史,可以将成像系统分为两大类:胶片记录成像系统和电子记录成像系统。胶片记录成像系统又可以分为银盐成像系统和非银盐成像系统;电子记录成像系统又可以分为模拟成像系统和数字成像系统。     

武汉地铁自动售检票系统研究

在地铁交通体系中,自动售检票系统(AFC系统)可以极大地提升乘客的进出站效率,是有效缓解地铁运营中人员流动瓶颈问题的重要手段。为充分挖掘AFC系统在自动化方面的价值,该文结合作者在工作中的具体实践,对武汉地铁自动售检票系统(AFC系统)的相关技术展开研究。首先分析武汉地铁AFC系统的发展历程,然后对其体系结构进行探究,并针对该体系中的车站计算机系统系统(SC系统)和车站终端系统系统(SLE系统)的实现机制进行讨论。     

一个新的分数阶混沌系统及其异结构同步

构造了一个新的三维混沌系统,该系统与Chen系统、Lorenz系统等各类经典的混沌系统都是拓扑不等价的.通过理论分析、数值仿真研究了该系统的混沌特性,且发现新系统在低于3阶时仍然呈现丰富的混沌现象.实现了该分数阶系统与其响应系统的异结构同步.     

说说系统的环境位移

系统,再通俗不过的现代词,网络是系统、电脑是系统、汽车是系统、学校是系统,小至细胞、原子,大到地球、宇宙,广义的说都是系统。我们每天生活在不同的系统中,有时平顺、有时出了问题,如果是系统的问题,就要用系统的方法去解决,几十年来研究系统的理论发展成形,用来侦测问题发生的原因,进一步寻求问题的解决答案。     

浅谈建筑施工现场临时用电的保护系统TN—S系统

按照国际IEC／TC64标准,临时用电的保护系统分为两种：一种是将电气设备的金属外壳作接地的保护系统称为TT系统;另一种是将电气设备的金属外壳作接零的保护系统称为TN系统。在TN保护系统中又分为两种型式：电气设备的保护零线与其工作零线合一的系统,称为TN—C系统;电气设备保护零线与工作零线分开的系统,称为TN—S系统。现行的建筑施工现场安全检查标准JGJ59—99中,明确规定临时用电必须实行三相五线制,即TN—S保护系统。文章就上述几种保护系统进行比较,来证实TN－S系统的实效性。     

自动化控制系统在黄酒灌装生产中的应用

论述了自动化黄酒灌装生产系统的流程;介绍了ERP系统、CRM系统、WMS系统的简述及相互结合运用,PLC控制系统在自动化黄酒灌装生产线系统的空瓶卸垛机和托板输送、验瓶、洗瓶灌装封盖、贴标、验标、裹包、喷码、码垛等应用,形成一体化自动化黄酒灌装系统;自动化黄酒灌装生产系统与自动化立体仓库系统、自动化酒体调配系统、与ERP...     

无亚硝或低亚硝酸盐的肉品腌制系统

介绍不使用亚硝酸盐或使用低量亚硝酸盐的肉品腌制系统。一是完全不使用亚硝酸盐的腌制系统,如麦芽酚、有机铁盐系统;用血液人工合成的亚硝基血红蛋白单一或多元腌制系统;红曲色素腌制系统;抗坏血酸、葡萄糖腌制系统;肉汤培养基腌制系统;二是抗氧化剂、抑菌剂和低量的亚硝酸盐组成的多元腌制系统。     

胸辊摇振系统在高速造纸生产线上的应用

介绍了摇振系统的工作原理,摇振系统的控制要求,摇振系统的操作数据设置,摇振系统的运行前提条件和系统参数设置.     

酵母振动膜过滤系统的应用研究

本文通过对酵母振动膜过滤系统的组成,系统分离的过程、原理,系统的优点,系统的运行状况,以及系统的经济技术特点进行论述,阐明了酵母振动膜过滤系统的应用价值。     

Quantitative risk-based approach for improving water quality management in mining

The potential environmental threats posed by freshwater withdrawal and mine water discharge are some of the main drivers for the mining industry to improve water management. The use of multiple sources of water supply and introducing water reuse into the mine site water system have been part of the operating philosophies employed by the mining industry to realize these improvements. However, a barrier to implementation of such good water management practices is concomitant water quality variation and the resulting impacts on the efficiency of mineral separation processes, and an increased environmental consequence of noncompliant discharge events. There is an increasing appreciation that conservative water management practices, production efficiency, and environmental consequences are intimately linked through the site water system. It is therefore essential to consider water management decisions and their impacts as an integrated system as opposed to dealing with each impact separately. This paper proposes an approach that could assist mine sites to manage water quality issues in a systematic manner at the system level. This approach can quantitatively forecast the risk related with water quality and evaluate the effectiveness of management strategies in mitigating the risk by quantifying implications for production and hence economic viability.     

改良型氧化沟工艺处理碱法草浆中段废水

介绍了采用FAS-Jet射流曝气系统的改良型氧化沟系统处理碱法草浆中段废水的设计及启动调试。改良型氧化沟采用全好氧曝气,沟中不存在缺氧区和厌氧区;氧化沟兼有完全混流式和推流式的独特水力特征,抗冲击能力强;FAS-Jet系统氧转移效率高、污泥沉淀性能好。运行结果表明,此工艺及参数选择合理、运转稳定,出水水质可达到造纸工业水污染物排放的国家标准。     

A Cooling System with Water Recycle for Blanched Vegetables

A water conserving cooling system with water recycle for blanched vegetables was designed to complement a previously developed water recycling blancher. The two stage cooler consisted of an evaporative cooling section with forced air and water sprays and a flume cooler with water, which was both refrigerated and recycled. A pilot scale blanching and cooling system was constructed, and broccoli spears were processed. The cooling system was effective at lowering the product temperature rapidly while maintaining the quality of the product at a high level as determined by ascorbic acid concentration, percentage of total solids, percentage of retained chlorophyll, and microbial counts.     

纺织印染企业的用水计量

根据纺织印染企业的实际情况,分析了用水的成本组成情况,阐明了节水的意义和作用.文章较详细的介绍了水表的分类、命名、特点和技术参数等,阐述了水计量的分级情况和选用水表的原则.文章还以一纺织企业为实例,介绍了水计量系统的建立.     

Artificial sweetener sucralose in U.S. drinking water systems

The artificial sweetener sucralose has recently been shown to be a widespread of contaminant of wastewater, surface water, and groundwater. In order to understand its occurrence in drinking water systems, water samples from 19 United States (U.S.) drinking water treatment plants (DWTPs) serving more than 28 million people were analyzed for sucralose using liquid chromatography tandem mass spectrometry (LC-MS/MS). Sucralose was found to be present in source water of 15 out of 19 DWTPs (47-2900 ng/L), finished water of 13 out of 17 DWTPs (49-2400 ng/L) and distribution system water of 8 out of the 12 DWTPs (48-2400 ng/L) tested. Sucralose was only found to be present in source waters with known wastewater influence and/or recreational usage, and displayed low removal (12% average) in the DWTPs where finished water was sampled. Further, in the subset of DWTPs with distribution system water sampled, the compound was found to persist regardless of the presence of residual chlorine or chloramines. In order to understand intra-DWTP consistency, sucralose was monitored at one drinking water treatment plant over an 11 month period from March 2010 through January 2011, and averaged 440 ng/L in the source water and 350 ng/L in the finished water. The results of this study confirm that sucralose will function well as an indicator compound for anthropogenic influence on source, finished drinking and distribution system (i.e., tap) water, as well as an indicator compound for the presence of other recalcitrant compounds in finished drinking water in the U.S.     

国内助留剂的现状和发展趋势

现代抄纸是一个水循环过程。助留剂直接改变白水的性质，对抄纸过程和成纸性质有十分重要的影响。常用助留剂已从单一聚丙烯酰胺逐渐过渡到微粒和超微粒系统。应用方面出现新的发展趋势：追求性价比更高的助留剂产品及系统、助留剂系统组份增多、助留系统化学品分别采购、加入点向网部移动等。     

Assessment of continuous and aerated fabric pressure-washing

A pressure-washing system was developed and assessed for the removal of residual dyes and washing of fabrics. The system was comprised of an acrylic water-tank, ultra-high molecular weight polyethylene rollers, a variable water pressure system rated at 1000 psi and a set of four linear spray nozzles with various exit divergence angles. To further decrease the water consumption, heated aerated impinging jets were added to the setup. Two cameras and 3D image processing algorithms were used to monitor fabric deformation during the washing process. Results show that increasing the water pressure up to 150 psi reduced the amount of water needed and did not cause fabric distortion. A small inclination angle of 20 degrees in the direction opposite to the flow of the fabric added some efficiency to the washing process. Although temperature alone did not exhibit a strong impact on efficiency, aerated-jet experiments under a water pressure of 100 psi at 60°C showed an increase of washing efficiency over non-aerated jets.     

毛纺印染行业节水减排评价体系的构建

针对中国毛纺印染行业尚未建立节水减排评价指标体系的现状,通过选取评价毛纺印染行业节水减排成效的多个指标,构建了毛纺印染行业节水减排评价体系,并采用层次分析法（AHP）对节水减排效果评价。该评价指标体系的建立,有助于毛纺行业有效开展节水减排工作。     

动力冷冻系统循环管道的改造

介绍了通过增加一内循环管路 ,降低出水温度 ,大幅提高盐水冷冻系统效率的方法。     

Bacterial community structure in the drinking water microbiome is governed by filtration processes

The bacterial community structure of a drinking water microbiome was characterized over three seasons using 16S rRNA gene based pyrosequencing of samples obtained from source water (a mix of a groundwater and a surface water), different points in a drinking water plant operated to treat this source water, and in the associated drinking water distribution system. Even though the source water was shown to seed the drinking water microbiome, treatment process operations limit the source water's influence on the distribution system bacterial community. Rather, in this plant, filtration by dual media rapid sand filters played a primary role in shaping the distribution system bacterial community over seasonal time scales as the filters harbored a stable bacterial community that seeded the water treatment processes past filtration. Bacterial taxa that colonized the filter and sloughed off in the filter effluent were able to persist in the distribution system despite disinfection of finished water by chloramination and filter backwashing with chloraminated backwash water. Thus, filter colonization presents a possible ecological survival strategy for bacterial communities in drinking water systems, which presents an opportunity to control the drinking water microbiome by manipulating the filter microbial community. Grouping bacterial taxa based on their association with the filter helped to elucidate relationships between the abundance of bacterial groups and water quality parameters and showed that pH was the strongest regulator of the bacterial community in the sampled drinking water system.