环保工程水处理过程中的超滤膜技术运用

针对超滤膜技术的原理及特点进行分析,其特点突出表现在耐受性特点、全面性特点以及便捷性特点等方面,并基于环保工程水处理过程的需求,提出超滤膜技术运用的相关对策,以期能够不断提升环保工程水处理的综合效果。     

大泽山地貌,土壤,气候与葡萄生产

产地特点对葡萄的质量起着极其重要的作用，因为区域内的土壤理化结构和气候特点决定了葡萄的品质，而气候特点又与区域的地理位置和地貌有关。通过对大泽山区域特点调查分析，论证其葡萄品质优良之因。     

盐业企业化验室内部质量控制方法

文章结合盐行业的特点,介绍了几种适合于盐业企业化验室特点的内部质量控制方法,并分析了各类方法的特点和适用范围。     

家具设计中的唯美女性主义设计应用分析

本文从分析女性主义的产生与唯美主义的结合,阐述了唯美女性主义家具设计的特点。对唯美女性主义题材家具设计的造型方法、色彩设计的特点以及材质选择运用的特点进行了设计应用分析。针对唯美女性主义的特点提出了家具设计的新方向。     

服装IE问题,有问必答

1 最近几年比较流行男式时装裤斜裁工艺,可以简单介绍一下应用此工艺的各类裤型特点吗?斜裁小直筒特点:做成直筒裤,穿着腿部挺拔。斜裁中直筒特点:使人腿型匀称、顺直。斜裁喇叭裤特点:前卫、夸张。低裆锥子裤特点:潮流前沿,穿着舒适。     

近代蜀绣绣鞋形制特点研究

依托四川地区民间及博物馆收藏的近3000余双绣鞋,以穿用特点和功能特点进行分类。分析研究了蜀绣绣鞋的材料、色彩、功能、结构和外观的特点。梳理和总结了蜀绣绣鞋的形制特点,以期促进传统文化、民间工艺的保护和创新发展。     

浅谈棉花颜色级实物标准特点

介绍了棉花颜色级实物标准构成,以及各级棉花的颜色特点,并对比品级实物标准说明棉花颜色级实物标准本身所具有的特点,这些特点弥补了品级实物标准本身的不足,从而说明了棉花颜色级实物标准的适用性强、覆盖面广、易操作等特点。     

通风发酵搅拌技术的研究

针对通风发酵搅拌过程的特点，分析了涡轮搅拌器的特点及其局限性；引入了先进的、具有高效节能特点的翼型轴流搅拌器，并对其流体动力学的性能进行了研究。     

鸡肉粉、鸡肉膏在方便面调味料中的应用

综述了方便面调味料的特点及发展趋势,以及纯鸡肉粉、鸡肉膏的生产工艺技术和产品特点,通过比较化学合成香精特点,利用其天然、营养、耐高温等特点应用于方便面鸡味调味料中,通过鸡味调味包配方应用举例,确定纯鸡肉粉、鸡肉膏对于提升方便面档次起到核心作用。     

浅谈低碳经济下的家具材料

通过阐述低碳经济的特点,简要分析低碳材料应具备的特点,结合常用的家具材料,初步探讨常用家具材料在低碳材料的特点方面呈现的情况,并提出家具材料的发展趋势。     

Reliable identification of grapevine rootstock varieties using RAPD PCR on woody samples

Since grapevine ( Vitis spp .) rootstock material is being traded increasingly as disbudded woody material a lack of distinctive morphological features on such material necessitates an alternative and reliable means of identification. Methods described here were developed for rapid and efficient extraction of DNA from woody samples rich in phenolic compounds and polysaccharides, and for subsequent identification of varieties by RAPD PCR. Using these methods, and with the application of only one selected RAPD primer, we were able to differentiate sixteen rootstock varieties, including the seven varieties most commonly used in Germany. Problems commonly encountered with reproducibility of RAPD patterns were avoided by choosing primers with a dinucleotide sequence and a high G/C content that allowed a rather high annealing temperature of 45°C. Methods described here should also be useful for other horticultural crops, especially those with woody tissues rich in phenolic compounds and polysaccharides.     

An internet compendium of analytical methods and spectroscopic information for monomers and additives used in food packaging plastics

An internet website (http://cpf.jrc.it/smt/) has been produced as a means of dissemination of methods of analysis and supporting spectroscopic information on monomers and additives used for food contact materials (principally packaging). The site which is aimed primarily at assisting food control laboratories in the European Union contains analytical information on monomers, starting substances and additives used in the manufacture of plastics materials. A searchable index is provided giving PM and CAS numbers for each of 255 substances. For each substance a data sheet gives regulatory information, chemical structures, physico-chemical information and background information on the use of the substance in particular plastics, and the food packaging applications. For monomers and starting substances (155 compounds) the infra-red and mass spectra are provided, and for additives (100 compounds); additionally proton NMR are available for about 50% of the entries. Where analytical methods have been developed for determining these substances as residual amounts in plastics or as trace amounts in food simulants these methods are also on the website. All information is provided in portable document file (PDF) format which means that high quality copies can be readily printed, using freely available Adobe Acrobat Reader software. The website will in future be maintained and up-dated by the European Commission's Joint Research Centre (JRC) as new substances are authorized for use by the European Commission (DG-ENTR formerly DGIII). Where analytical laboratories (food control or other) require reference substances these can be obtained free-ofcharge from a reference collection housed at the JRC and maintained in conjunction with this website compendium.     

Aroma characterization of various apricot varieties using headspace–solid phase microextraction combined with gas chromatography–mass spectrometry and gas chromatography–olfactometry

The characterization of the aromatic profile of several apricot cultivars with molecular tracers in order to obtain objective data concerning the aromatic quality of this fruit was undertaken using headspace–solid phase microextraction (HS–SPME). Six apricot cultivars were selected according to their organoleptic characteristics: Iranien, Orangered, Goldrich, Hargrand, Rouge du Roussillon and A4025. The aromatic intensity of these varieties measured by HS–SPME–Olfactometry were defined and classified according to the presence and the intensity of grassy, fruity and apricot like notes. In the six varieties, 23 common volatile compounds were identified by HS–SPME–GC–MS. Finally, 10 compounds, ethyl acetate, hexyl acetate, limonene, β-cyclocitral, γ-decalactone, 6-methyl-5-hepten-2-one, linalool, β-ionone, menthone and (E)-hexen-2-al were recognized by HS–SPME–GC–O as responsible of the aromatic notes involved in apricot aroma and considered as molecular tracers of apricot aromatic quality which could be utilized to discriminate apricot varieties.     

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

The advent of the functional barrier concept in food packaging has brought with it a requirement for fast tests of permeation through potential barrier materials. In such tests it would be convenient for both foodstuffs and materials below the functional barrier (sub-barrier materials) to be represented by standard simulants. By means of inverse gas chromatography, liquid paraffin spiked with appropriate permeants was considered as a potential simulant of sub-barrier materials based on polypropylene (PP) or similar polyolefins. Experiments were performed to characterize the kinetics of the permeation of low molecular weight model permeants (octene, toluene and isopropanol) from liquid paraffin, through a surrogate potential functional barrier (25 μm-thick oriented PP) into the food simulants olive oil and 3% (w/v) acetic acid. These permeation results were interpreted in terms of three permeation kinetic models regarding the solubility of a particular model permeant in the post-barrier medium (i.e. the food simulant). The results obtained justify the development and evaluation of liquid sub-barrier simulants that would allow flexible yet rigorous testing of new laminated multilayer packaging materials.     

Analysis of benzo[a]pyrene in spiked fatty foods by second derivative synchronous spectrofluorimetry after microwave-assisted treatment of samples

A simple, rapid and inexpensive method has been developed for the determination of benzo[a     

The development of reference materials for paralytic shellfish poisoning toxins in lyophilized mussel. II: Certification study

This paper describes the second part of a project undertaken to develop certified mussel reference materials for paralytic shellfish poisoning toxins. In the first part two interlaboratory studies were undertaken to investigate the performance of the analytical methodology for several PSP toxins, in particular saxitoxin and decarbamoyl-saxitoxin in lyophilized mussels, and to set criteria for the acceptance of results to be applied during the certification exercise. Fifteen laboratories participated in this certification study and were asked to measure saxitoxin and decarbamoyl-saxitoxin in rehydrated lyophilized mussel material and in a saxitoxin-enriched mussel material. The participants were allowed to use a method of their choice but with an extraction procedure to be strictly followed. The study included extra experiments to verify the detection limits for both saxitoxin and decarbamoyl-saxitoxin. Most participants (13 of 15) were able to meet all the criteria set for the certification study. Results for saxitoxin.2HCl yielded a certified mass fraction of <0.07 mg/kg in the rehydrated lyophilized mussels. Results obtained for decarbamoyl-saxitoxin.2HCl yielded a certified mass fraction of 1.59+/-0.20 mg/kg. The results for saxitoxin.2HCl in enriched blank mussel yielded a certified mass fraction of 0.48 +/- 0.06 mg/kg. These certified reference materials for paralytic shellfish poisoning toxins in lyophilized mussel material are the first available for laboratories to test their method for accuracy and performance.     

Announcing a new international peer-reviewed journal:Food Science and Human Wellness now accepting manuscript submission in English

<正>We are pleased to announce the launch of a new international peer-reviewed journal-Food Science and Human Wellness,ISSN 2213-4530,which is an open access journal,produced and hosted by Elsevier B.V.on behalf of Beijing Academy of Food Sciences.Food Science and Human Wellness is an international peer-reviewed English journal that provides a forum for the dissemination of the     

Chinese CTP Market

According to Printing and Printing Equipment Industries Association of China（PEIAC）＇s statistics to the plate manufucturer in China, in 2013, the actual offset plate production has reached 346 million square meters in China. Among them, the CTP production volume was 245 million square meters, up by 11% than that of last year; the total sales of the CTP plate was 239 million square meters, up by 13%.     

Preparatory Work of Print China 2015 is Going Smoothly

正Held at Guangdong Modern International Exhibition Center,Print China 2015 will cover 7exhibition halls,besides the original Hall No.3,4,5,6,7,the newly built F zone of Hall 3 will be used too.The total area will be140,000 square meters.Hall 3:Offset and large printing equipment,package printing equipment,post press