香烟滤咀用细旦二醋纤纺丝技术研究

本文用面△０．０６—０．０６—２５０孔喷丝板单甬道干纺工艺连续纺制２．７５ｄｔｅｘ烟滤咀用细旦二醋纤，其强、伸度分别为１．２０ｃＮ／ｄｔｅｘ、０．２２．异形度为０．７７８结果达到烟用二醋纤的技术要求．     

高温法棉浆二醋片与木浆二醋片可纺性之比较

本文比较了高温法木浆二醋片和棉浆二醋片丙酮纺丝原液的透明度、过滤性、可纺性及其纤维的结构和性能．认为木浆二醋片纺丝原液的透明度和最大纺丝速度较低，而过滤性能较好．由二者生产的二醋纤结构及性能相近．     

HTCA—丙酮溶液流变行为与可纺性关系的研究

用气压式毛细管流变仪研究了高温法二醋酸纤维素（ＨＴＣＡ）—丙酮纺丝溶液的非牛顿指数ｎ，结构粘度指数△η和粘液活化能△Ｅη与可纺性的关系．结果表明，ｎ值的增大和△η的减小有利于改善ＨＴＣＡ—丙酮溶液的可纺性，但难以作为可纺与不可纺的判据．而△Ｅη能较好地表征ＨＵＣＡ—丙酮溶液的可纺性，△Ｅη值越高．流动性和可纺性越差，实验表明△Ｅη高于８０ＫＪ／ｍｏｌ时．其溶液不可纺．在ＨＴＣＡ—丙酮溶液中加入１０—１５％左右的助溶剂Ｄ，可提高丙酮的溶解能力，使ｎ值增大，△η和△Ｅη降低，从而改善了可纺性。     

用0.89dtex细特涤纶短纤纺制4.9tex特细纱的实践

用０．８９ｄｔｅｘ细特涤纶短纤纺制４．９ｔｅｘ特细纱的实践朱建华（江苏如皋市丁堰纺织厂）我厂最近运用０．８９ｄｔｅｘ×３８ｍｍ的细特涤纶短纤成功地纺出５．４ｔｅｘ、４．９ｔｅｘ纯涤纶纱，为细特纤维的应用积累了一定的经验，现介绍如下。１原料选择及工艺流...     

醋酸纤维直接纺丝工艺的探讨

普通醋酯纤维是天然纤维素以醋酐为乙酰化剂,醋酸或二氯甲烷为溶剂,经酯化反应生成纤维素醋酸酯,再纺制成的纤维。醋酯纤维自一九二一年首先在英国开始工业生产,到现在已经有五十多年的历史。工业和科技部门经长期不断地研究,新的工艺路线和新技术获得不断发展。目前国内醋酯纤维的生产,都是采用醋酸溶剂法生产二醋酸纤维素,再将干燥后的二醋酸纤维素溶于丙酮,制成纺丝浆液,然后在热空气中喷纺成纤维(干法纺丝)或在丙酮水溶液中喷纺     

细特涤纶纺制混纺纱线的工艺探讨

本文介绍了使用０．８９ｄｔｅｘ涤纶短纤纺制７．４特粘涤混纺纱线的工艺分析与探讨。     

钛白在CA丙酮溶液中的分散

ＴｉＯ２在ＣＡ丙酮溶液中的分散效果．直接影响到原液的增白、过滤性和可纺性．本文在对比多种分散方式下，选用胶体磨配制ＴｉＯ２浆液，其分散性高，显微镜下观察其粒径较匀，电镜显示其粒径较小，均在５ｕｍ以内，符合烟用二醋纺丝要求．且制法简单，快速。     

涤纶超细纤维的生产技术：（二）工艺

本文主要介绍了在ＮＥＵＭＡＧ细旦丝专用生产设备上纺制单丝纤度为０．４ｄｔｅｘ超细纤维的生产工艺，提出了超细纤维生产对原料的要求，并对喷丝板孔径的选择进行了理论分析和实验总结。     

高温法二醋片可纺性表征方法初探

本文利用毛细管流变仪研究了几种二醋片（ＣＡ）丙酮纺丝原液的流变性。分析了粘流活化能（ΔＥη）与可纺性的关系．认为ΔＥη可作ＣＡ－丙酮纺丝原液可纺性的表征参数．ΔＥη越小，可纺性越好．ΔＥη大于８０ＫＪ．ｍｏｌ－１时，可纺性差．     

聚酯细旦双捻向低弹网络丝生产工艺探讨

本文介绍采用ＰＯＹ－ＤＴＹ工艺路线生产单丝纤度０．８７ｄｔｅｘ细旦双捻向低弹网络丝的生产技术，讨论了切片干燥、熔融纺和牵伸假捻及异捻合股网络等条件的控制。     

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。     

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。     

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.     

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.     

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.     

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．     

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。     

基于复合运动理论推导求点的速度及加速度的球坐标法

本文基于点的复合运动理论,用球坐标法推导出点的速度及加速度的计算公式,进一步论证了理论力学中点的速度,加速度公式的正确性。     

灵芝不同部位多糖含量测定

采用苯酚-硫酸法对灵芝菌盖表皮层、木栓层、菌柄、孢子粉、发酵菌丝体等部位中的灵芝多糖进行了测定,结果发现,灵芝发酵菌丝体中的多糖含量明显高于灵芝的其它部位,其含量顺序分别为：发酵菌丝体〉菌盖表皮层〉孢子粉〉菌柄〉木栓层。     

棉浆粕制备条件对粘胶生产适用性的影响

本文论述了过低的棉短绒成熟度会引致粘胶生产过程压榨困难和过滤障碍。描述了在蒸球内设置中通管、来用重蒸轻漂、稳定漂白聚合度、以及漂后的除杂疏解等先进的工艺制造棉浆粕，有助于反应性能的提高，改善粘胶的过滤性能。但打浆时过分切断使纤维长度过短，会影响碱纤维素的压榨。采用干毯抄浆、浆粕存放（一段时间）均有助于浆粕水份均匀性的提高。