包装数字印刷的前景

根据SmithersPira的最新研究,2011年全球数字印刷包装和标签业市场价值为48亿美元。这份题为《包装数字印刷未来》的研究报告称:这个市场正在迅速增长,到2016年,这一数字有望接近122亿美元,2011年到2016年之间的复合年均增长率(CAGR)将达到20.6%,这相当于在2011年生产370亿印A4,2016年将达759亿印张。     

Evaluation for collagen products for cosmetic application

The assessment of ocular irritation potential is an important part of safety testing for cosmetic and consumer products. The purpose of this investigation was to examine ocular irritancy levels elicited in humans by various categories of a specific class of cosmetic and consumer products that have a potential to enter the eye inadvertently during use. Test materials assessed belonged to one of seven categories, which included liquid make-up, shampoo, baby wash, mascara, eye make-up remover, powder eye shadow, and facial cleanser. These test materials were evaluated by human ocular instillation, followed by examinations, for which subjective perceptions of irritation were recorded, and component areas of ocular tissues were individually examined for inflammation and for the area and density of fluorescein staining patterns at 30 s and at 5, 15, 60, and 120 min post-instillation. Subjective and objective ocular irritation scores of 410 eyes were analyzed by product classification. Average score levels were determined for subjective responses, inflammation, and fluorescein staining patterns. This investigation determined that irritation levels of the evaluated test materials varied markedly with respect to product category, type of ocular irritation, and ocular tissue, demonstrating that these factors are important considerations for the prediction of the ocular irritancy of a test material.     

The requirements for databases for sensory analysis

The large volume and complex organisational structure of sensory analysis data places particular demands on any database management system. Key advantages of a sensory database include independence of file structure, data organisation and data type, metadata, the ability to form multiple relationships and a standardised interface which allows interaction with a variety of sensory software packages. This paper discusses these issues in some detail.     

服装生产企业节能改造方案

针对服装生产企业高能耗的现状,分析了企业高能耗的原因,然后从照明节能、缝纫设备节能、熨烫设备节能3个方面探讨了节能降耗的有效对策与措施,并提出几种不同的改造方案,经过可行性分析、投资回收期计算等方面的综合分析找出最适合服装生产企业的改造方案.针对中小型企业缺乏改造资金,无力承担投资和技术风险的现状,提出采用国外比较成熟...     

疫情呼唤全球统一的口罩标准

冬去春来,万物复苏,流行病也潜滋暗长.无论是雾霾天气还是流行病发生,人们习惯于戴口罩出门.目前,整个世界都在关注发生在中国的H7N9禽流感.每当发生疫情,用得最多的是口罩,而全世界口罩却没有适用于所有国家的标准.目前医用口罩和工业口罩都有专业标准,但民用口罩并无专门的安全标准,挑选起来很令人纠结. 在这个冬季,弥漫中国许多地区的雾霾天气让平日里无人问津的口罩热销,那么,这些口罩能防护PM2.5、阻隔微尘颗粒吗?由于我们使用的口罩并无统一的鉴定标准,只能凭价格区别好坏.价格相差数千倍的口罩有何悬殊?无统一的鉴定标准导致很多口罩质量良莠不齐,除了留下一阵喧嚣,很难界定防护PM2.5口罩的真假.     

有利于生态环保的PEO纤维产品

据ＵＳＰ 60 1 0 971介绍 ,美国Ｋｉｍｂｅｒｌｙ ＣｌａｒｋＷｏｒｌｄｗｉｄｅ公司研制开发了一套生产氧化聚乙烯(ＰＥＯ)纤维产品的技术 ,能用于制造一次性非织造布等产品 ,废弃后很容易被细菌微生物分解成肥料。其主要成分是可被生物降解的氧化聚乙烯 ,用于加工成纤维、膜或挤压成非织造布等产品 ,是非常有利于生态环保的绿色产品。但由于许多因素使其加工和应用很难 ,如氧化聚乙烯树脂呈典型粉末状 ,其分子量小 ,熔融温度很低 ,而且一般ＰＥＯ聚合物是水溶性的 ,不适合生产常与水、尿或血液接触的产品。他们研发的这项技术是以ＰＥＯ聚…     

浸胶帘子布横向收缩问题的探讨

从浸胶液的作用、伸张作用、张力不匀的影响和弧形扩布器的扩布效果几方面分析了帘子布产生横向收缩的机理。认为造成帘子布横向收缩的主要原因是伸张、经丝纬纱收缩及直径变化、纬纱沿布面弯曲,降低收缩率必须提高织机性能、选用重型或特重型织机,注意经丝原料性能和经丝张力的均匀稳定,适当调节弧形扩布器。     

积分的超渐近展开与Stokes不连续性的光滑化

渐近分析中的经典最速下降法近十年来出现的重要新发展－超渐近展开,使人们对于历史上名的Stokes现象实质有了更深刻的认识。然而,有关这方面的资料却各自独立且不易读懂,尤其缺少思路清晰的综述。本力求通俗自然概括整理出其中的主要成果,有些地方不得不根据作的理解作了改动与补充,一些概念的中译名亦仅供参考。     

寻找调味品市场的蓝海——访抚顺市独凤轩食品有限公司市场营销总监陈鑫

初识陈鑫总监，是在2006‘中国国际调味品及食品配料博会的企业家高峰论坛上，当时在众多的知名企业家面前，他显的有点含蓄而矜持。当记者得知陈总的身份并与他交谈几句之后，给记者的感党一个词语就能形容：年轻有为。     

摩托车辐条钢丝生产工艺

介绍摩托车辐条钢丝的生产工艺流程，指出相应的产品标准和生产工艺。     

积分的超渐近展开与Stokes不连续性的光滑化

渐近分析中的经典最速下降法近十年来出现的重要新发展－超渐近展开,使人们对于历史上名的Stokes现象实质有了更深刻的认识。然而,有关这方面的资料却各自独立且不易读懂,尤其缺少思路清晰的综述。本力求通俗自然概括整理出其中的主要成果,有些地方不得不根据作的理解作了改动与补充,一些概念的中译名亦仅供参考。     

积分的超渐近展开与Stokes不连续性的光滑化

渐近分析中的经典最速下降法近十年来出现的重要新发展－超渐近展开，使人们对于历史上名的Stokes现象实质有了更深刻的认识。然而，有关这方面的资料却各自独立且不易读懂，尤其缺少思路清晰的综述。本力求通俗自然概括整理出其中的主要成果，有些地方不得不根据作的理解作了屐与补充，一些概念的中译名亦仅供参考。     

北京农产品质量安全学会征文专题

正北京农产品质量安全学会成立于2009年,依托于北京市农林科学院北京农业质量标准与检测技术研究中心。目前个人会员210名,团体会员单位45个,下设4个工作部(办公室、组织工作部、学术工作部、技术推广工作部)和6个专业委员会(产地环境安全专业委员会、安全生产技术专业委员会、标准化专业委员会、质量检测技术专业委员会、检测技术信息化专业委员会、企业工作委员会)。学会宗旨是为了促进北京地区农产品质量安全,团     

积分的超渐近展开与Stokes不连续性的光滑化

渐近分析中的经典最速下降法近十年来出现的重要新发展－超渐近展开,使人们对于历史上名的Stokes现象实质有了更深刻的认识。然而,有关这方面的资料却各自独立且不易读懂,尤其缺少思路清晰的综述。本力求通俗自然概括整理出其中的主要成果,有些地方不得不根据作的理解作了改动与补充,一些概念的中译名亦仅供参考。     

Method for screening barley and wheat samples for mercury

A flameless atomic absorption method on undigested crushed grain samples was used for screening large numbers of samples in Iraq in 1972 in an outbreak of methylmercury epidemy which occurred after the misuse of seed wheat treated with methyl-mercury fungicide. In the standard procedure 1 g of crushed grain was added to a reaction vessel with 1 ml of 1% cysteine, 20 ml of 1% saline and 10 ml of 16 N -H₂SO₄. Methylmercury and all the other forms of mercury were converted to atomic mercury by the combined SnCl₂–CdCl₂ reagent after the addition of 20 ml 45% NaOH. Atomic mercury was moved from the reaction vessel through the gas cell of a mercury vapour meter by an air pump. Deflection on the scale of the mercury vapour meter was recorded and by use of standard additions to the same sample mercury contents were calculated. It was found that from crushed grain approximately 60% of the mercury was released compared with estimations carried out on digests necessitating the use of a correction factor for quantitation. This screening technique which does not need elaborate instruments, special skill and care, made it possible for two people to screen approximately 30 samples per hour and to overcome the emergency situation which had been presented by the large number of wheat stocks suspected of containing methylmercury.