几种不同组织结构的衬衫面料保形性研究

根据常见的衬衫面料组织结构,使用JC9.7 tex纱线设计了6种不同组织结构的面料,研究不同组织结构对织物保形性的影响。对面料的保形性(尺寸稳定性、抗折皱性、外观平整度、抗起毛起球性、顶破性、悬垂性)及舒适性(透气、透湿性)进行了测试。结果表明:组织结构对织物的折皱回复角、外观平整度等级、顶破强力、透湿量与透气率有直接影响;织物紧度太大、太小都不利于织物的折皱回复,相同紧度下斜纹组织的抗皱性比平纹好;6种组织结构中2/2斜纹组织抗折皱性最好,2/2方平组织的顶破强力、抗起毛起球等级最高,2/2破斜纹透气、透湿性最好,2/2斜纹组织具有良好的保形性。     

混纺比与纬密对绢／棉混纺织物性能及风格的影响

选用4种绢／棉混纺纱,以纬纱密度和混纺比为参量,设计制织了9种产品,研究了纬密以及混纺比对绢／棉混纺织物的抗皱性、透气性和悬垂性等服用性能的影响,并对其风格进行了客观评价。研究发现,随着纬纱中棉纤维含量的增多,绢丝×绢／棉织物的折皱回复性改善,悬垂性变好,透气性下降;随着纬密的增加,绢丝×绢／棉织物的纬向紧度线性增加,折皱回复性逐渐变差,悬垂性先变差后变好,透气性逐渐变差。对织物风格的客观评价结果显示,棉纤维的加入,使绢丝织物的硬挺度、平展度、光滑度稍微变差,悬垂度和滑爽度均有所改善,丰满度基本没有变化;随着纬密的增加,织物的硬挺度和滑爽度增加,丰满度和光滑度逐渐减小,悬垂度和平展度的变化分别呈下凹形和上凸形。     

纱线合股数对3种组织织物保形性的影响

研究纱线合股数和织物组织对织物保形性能的影响。采用细度相同的9.6 tex单纱和4.8 tex×2、3.2 tex×3和2.4 tex×4股线,以相同经纬密分别制织成平纹、二上二下方平、二上二下左斜纹组织的织物。测试了各织物的折皱回复性,采用人工主观评价和客观评价方法评价了织物平整度。结果表明:随着纱线合股数的增加,织物的折皱回复性变差,平纹双股线织物折皱回复性最好,方平织物中单纱和双股线织物折皱回复性相近,斜纹单纱织物的折皱回复性好于其他织物;平纹和方平单纱织物的平整度等级高于股线织物,纱线合股数对斜纹织物的平整度无明显影响;织物组织结构交织点少、浮线长,结构越松散,其保形性越好。认为:纱线合股数和织物组织对织物保形性具有一定影响。     

芦荟改性粘胶衬衫用织物性能研究

探讨不同混纺比、织物组织、纬纱密度的芦荟改性粘胶织物的服用性能。采用芦荟改性粘胶纯纺纱和芦荟改性粘胶/棉75/25、50/50、25/75混纺纱,通过改变织物组织和纬纱密度,设计了9种织物,并对织物的规格、透气性、透湿性、悬垂性、折皱回复性、导热性、抗起毛起球性进行了测试。试验结果表明:芦荟改性粘胶纤维含量较多时,织物的透气性、透湿性和悬垂性较好;经纬纱密度较小时,织物透气性、透湿性、悬垂性和折皱回复性好;与平纹织物相比,平纹地小提花织物的透气性、折皱回复性和抗起毛起球性好。认为:芦荟改性粘胶纤维含量较多的、组织为平纹地小提花、密度较小的织物综合性能较优,适宜用作夏季轻薄衬衫面料。     

强捻纱竹浆织物舒适性和折皱回复性研究

普通捻度竹浆织物有着优良的舒适性能,但存在抗皱性缺陷。对强捻度和普通捻度竹浆纱及其织物性能的测试分析表明：由于强捻纱实际直径变小,强捻度竹浆织物透气性、透湿性优于普通捻度竹浆织物;实际生产中,可通过提高强捻竹浆织物的实际紧密度和纱线弹性回复性改善织物的折皱回复性能,且纱线弹性回复性能影响显著。     

基于自动织样机的珍珠纤维/棉衬衫面料的设计

珍珠纤维织物具有养颜护肤、远红外线发射、吸湿透气、防紫外线功能等优异性能,是高档功能性贴身面料的理想选择.本文根据珍珠纤维的特性选择纱线规格、织物组织结构,设计织物的经纬密后在自动织样机上设计研究珍珠纤维/棉衬衫面料;对设计好的珍珠纤维/棉衬衫面料与纯棉面料在织物热湿舒适性(透气性、透湿性、芯吸性)、抗紫外性、折皱回复性上进行分析比较.     

精纺毛织物结构参数与折皱回复性的关系

为探究精纺毛织物结构参数与折皱性能的关系,收集了18 种精纺毛织物,应用JN-1型织物折皱回复性能动态测试仪进行折皱回复角测试,通过数据分析,得出结构参数与折皱回复角间的关系。为了进一步分析各结构参数对织物抗皱性能的影响程度,找出对折皱回复角影响较大的结构参数,同时研究了织物结构参数与折皱回复角的相关性。结果表明：精纺毛织物的折皱回复性不仅与织物原料、纱线线密度和捻度有关,还与织物经纬密、织物紧度以及面密度有关;除了纤维原料以外,纱线捻度对织物折皱回复性的影响最为显著。     

PIRAY纤维织物综合性能探讨

对3种PIRAY纤维织物的导湿性、透湿性、透气性、抗折皱性、耐磨性及抗紫外等性能进行了测试.结果表明:由于PIRAY纤维内加入了矿物质,织物具有良好的导湿性和抗紫外性能.由于织物结构的差异,纱卡的导湿性与抗折皱性较好,而耐磨性较差;府绸的线密度与紧度小,透湿性与透气性好;三利格织物由于紧度较大,色泽较深,所以具有很好的防紫外性能.     

抗菌阻燃整理对棉/竹浆交织物性能的影响

为了更好地研究棉/竹浆交织物的抗菌、阻燃性能,设计织造了棉/竹浆14.7 tex×14.7 tex,433×315根/10 cm,146.5 cm织物,对织物抗菌、阻燃整理前后的拉伸断裂强力、撕破强力、折皱回复角、透气率、透湿量、吸水率、抗弯刚度、悬垂系数、燃烧损毁长度、织物水洗尺寸变化率等指标进行了测试分析,并对整理后的抑菌率进行测试。结果表明:经抗菌、阻燃整理后,织物的拉伸性能、撕破性能、折皱回复性、透气性、透湿性、吸水性变差;织物的刚柔性、悬垂性、阻燃性、抗菌性、缩水性变好。     

纯棉纱线合股数对织物性能的影响

为研究纯棉纱线合股数对织物力学性能和保形性的影响,采用线密度相同的单纱、双股线、3股线、4股线4种股线类型,以适当的经、纬密分别织制成平纹、斜纹、缎纹组织的织物。对织物的拉伸性能、撕裂强力、拉伸弹性、折皱回复性、悬垂性、弯曲性进行测试与分析。结果表明:3股线织物的断裂强力和撕裂强力较大,4股线织物的断裂伸长率较大,双股线织物的拉伸弹性回复率较大;平纹织物仅有双股线织物的折皱回复性优于单股线织物,斜纹和缎纹织物的折皱回复性随合股数的增加均变差;双股线平纹织物悬垂性相对较好,但均没有斜纹和缎纹织物的悬垂性好;单纱织物的弯曲性能比股线织物好。     

蛋白质水解度测定方法综述

对目前国内外常用的蛋白质水解度测定方法进行了综述，其中pH—state方法是通过滴定水解过程中释放的质子测定DH；OPA、TNBS及国内常用的水合茚三酮和甲醛等测定方法是利用游离氨基的反应测定DH。     

SEROLOGIC IDENTIFICATION OF SPECIES OF ORIGIN OF SAUSAGE MEATS

SUMMARY: A partially purified immunoglobulin G (lgG) solution prepared from the serum of species to be tested was heated to the specifications for sausages. The resulting supernatant fluid was decanted and the precipitate washed with saline and used to immunize rabbits. The supernatant fluid was used to sensitize tanned sheep red blood cells. The immune serum was rendered monospecific by absorptions with heterologous, heated lgG precipitates. A sample of monospecific immune serum was absorbed with a washed homogenate of sausage. Aliquots of the monospecific immune serum, both untreated and sausage absorbed, were tested with cells sensitized with the homologous heated lgG supematant fluid. A significant reduction of titer by sausage absorption indicated that the sausages contained the meat homologous to the immune serum.     

聚多元羧酸盐的合成及应用

研究了聚多元羧酸盐的合成方法及反应机理,将其应用于洗涤剂和PVC制品中分别代替三聚磷酸钠和邻苯二甲酸二丁酯,证明有良好效果。     

BASIS OF STABILITY OF AMINE SALTS OF LINOLEIC ACID

SUMMARY— The mechanism and generality of the known stabilization against autoxidation conferred on linoleic acid by certain basic amino acids, such as lysine and arginine, was investigated. Basic amino acids were the only class of compounds found to confer the effect. However, the smallest basic amino acid, 2,3-diaminopropionic acid, was not effective, nor was αβω-diaminc acid, 3,6-diaminohexanoic acid, although a simple isomer of lysine. The stabilization was observed only in the solid phase. Inclusion of sodium chloride in the solid matrix was deleterious to the effect. A large number of physical and chemical observations were made and correlated but it has not been possible to draw detailed conclusions about the mechanism of stabilization, nor can a detailed structure of the stabilized complex be suggested. The cause of the phenomenon appears to be closely associated with the physical arrangement of the ions in the crystal lattice.     

STABILITY OF AQUEOUS EMULSIONS OF THE ESSENTIAL OIL OF HOPS

Hop oil emulsions prepared from different varieties of hops have been found to exhibit enhanced physical stability on the addition of blends of the emulsifiers Span 20/Tween 80 or Span 60/Tween 60. Examination of the particle size and volume distributions of an emulsion by use of a Coulter Counter was found to be an excellent method of monitoring its stability. An indication as to the relative efficiency of emulsifiers can be obtained from Coulter Counter measurements on hop oil emulsions after storage for 4 days. The use of an ultracentrifuge provies a rapid means of testing emulsion stability and hence the effectiveness of emulsion stabilizers.     

百年风尚

一场流光溢彩、赏心悦目的展览,一段百年风尚演进的传奇旅程,一次东西方文化艺术的完美对话。2013年9月13日,“博萃臻艺一中西方珍宝艺术展”在辽宁省博物馆举行了隆重的开幕仪式,法兰西共和国驻华大使白林女士、辽宁省文物局局长丁辉先生、辽宁省博物馆馆长马宝杰先生、卡地亚全球总裁兼首席执行官邓阁仕先生、卡地亚区域行政总裁（北亚洲）陆慧全先生、卡地亚中国区首席执行官陆意斯先生、辽宁省文物店总经理张春鹰先生,以及众多文化界与文博界的贵宾齐聚一堂,共同见证了这场文化艺术盛事。     

ANALYTICAL CHARACTERIZATION OF THE PRODUCTS OF NONENZYMATIC GLYCOSYLATION OF LYSOZYME

The quantitative analysis of the reaction products of the water activity dependent nonenzymatic glycosylation of lysozyme was not straightforward. Difficulties arose in the determination of the number of bound glucose molecules because glycosylation leads to glucose mediated protein aggregation, and the likely presence of a mixture of relatively labile Schiff-base intermediates, and the more stable ketoamine products generated by Amadori rearrangement. Polyacrylamide gel electrophoresis was used to monitor protein aggregation; periodate oxidation, nuclear magnetic resonance (NMR), and oxalic acid hydrolysis combined with HPLC, emerged as the most promising methods to quantitate the degree of glycosylation. Possible interpretations are advanced to explain the apparent discrepancies in degree of glycosylation suggested by the different analytical methods evaluated.     

EFFECTS OF TYPES OF FAT AND OF RATES AND TEMPERATURES OF COMMINUTION ON DISPERSION OF LIPIDS IN FRANKFURTERS

ABSTRACT— The effect of time, temperature and rpm of comminution of emulsions was determined on the dispersion of approximately 25% of beef fat, pork fat or cottonseed oil in frankfurters. The numbers of lipid particles 5 μ or less in diameter increased in frankfurters containing either beef or pork fat as comminution was continued to higher temperatures, with pork fat dispersed more thoroughly. Fat tended to separate from frankfurters containing beef fat in particles 200 μ or more in diameter. In contrast, no specific degree of dispersion of particles 5 μ or less in diameter consistently indicated emulsion stability, or its lack. Increased rpm during comminution produced an increased dispersion of beef or pork fat. Under the same conditions pork fat was dispersed more finely than beef fat. Dispersion of cottonseed oil produced finely dispersed particles beyond the resolution of light microscopy, as was confirmed by electron microscopy which showed a substantial number of particles to be less than 1 μ in diameter.     

DEVELOPMENT OF CHAINS OF CELLS OF SACCHAROMYCES CEREVISIAE DURING FERMENTATION

The lengths of chains of cells of Saccharomyces cerevisiae were studied during fermentation. Pitching yeast generally contained about half of the total number of cells as two-celled chains. The chain lengths varied during the subsequent fermentation and the variations were characteristic of the strain. Electronic counting assessments of chain length were unreliable.     

矩阵乘积的行式,列式

给出了ｍ×ｍ矩阵与ｍ×ｎ矩阵的行（列）式的表达式．若Ａ＝ａ１１ａ１２…ａ１ｍａ２１ａ２２…ａ２ｍ……ａｍ１ａｍ２…ａｍｍＢ＝ｂ１１ｂ１２…ｂ１ｎｂ２１ｂ２２…ｂ２ｎ……ｂｍ１ｂｍ２…ｂｍｎ分别是ｍ×ｍ，ｍ×ｎ矩阵，则｜Ａ｜｜Ｂ｜＝｜ＡＢ｜＋∑ｉ１＜ｉ２＜…＜ｉｔｊ１＜ｊ２＜…＜ｊｔ１≤ｔ≤ｍｎ－ｔ≥ｍＮＢｉ１ｉ２…ｉｔｊ１ｊ２…ｊｔＮＡＢ１…ｍ（－１）ｓｔ＋１ｊｔ＋１…（－１）ｓｎｊｎ其中ｉ１，ｉ２，…，ｉｔ是１，２，…，ｍ中ｔ个数码；ｊ１，ｊ２，…，ｊｔ，ｊｔ＋１，…，ｊｎ是１，２，…，ｎ的一个排列；ｓｒ＝π（ｊ１，ｊ２，…，ｊｔ，ｊｒ）（ｒ＝１，２，…，ｎ）是排列ｊ１，ｊ２，…，ｊｔ，ｊｒ的反序数．