梳棉机盖板踵趾面耐磨性研究

分析了传统的铸铁盖板骨架踵趾面耐磨性差的原因,通过研制加入微量元素的铸铁盖板骨架并进行试验论证,证明其踵趾面的耐磨性能明显提高。     

集体落纱快装纱管用铝杆锭子设计

为提高空纱管安装效率,分析集体落纱细纱机特点,介绍了锭子杆盘结构型式,说明目前国内铝杆锭子多采用支持器弹簧加支持器帽的结构,虽能基本满足集体自动落纱细纱机的生产需要,但仍存在机械手安装空纱管时动作较多、动作精度不高、且易撞到锭子问题,易对锭子造成损坏并缩短锭子使用寿命的缺陷,重点对新设计的快速安装纱管的铝杆锭子的结构及原理进行分析,指出将弹簧支持器帽换成钢珠,可以大大缩短集体落纱细纱机机械手安装空纱管时间、降低对机械手动作精度的要求,且不损坏锭子、不影响锭子使用寿命,实现了节能降耗、安装效率高的目的。     

翻领成型器曲面几何形状研究

翻领成型器曲面为可展曲面,用微分几何方法描述了翻领成型器曲面的数学模型,推出了肩曲面为左右对称顶点不同的锥面时的圆形料管翻领成型器的交接曲线以及边界曲线的数学模型,并用Pro/E建立其三维曲面参数化数字模型,为翻领成型器其他截面形状、其他曲面形状的研究提供新的研究方法,为翻领成型器设计制造提供一定的理论依据。     

Relation of the lipid level of the blood plasma to the nature of the nutrition of the population

The incidence of disorders in the lipid and lipoprotein metabolism and the character of nutrition were studied in a non-organized population of males aged 20-59 (n-2888). Strictly standardized methods applicable in epidemiologic investigations were used. A reliable relationship has been revealed between the excessive consumption of fats, saturated fatty acids, cholesterol, saccharose, the insufficient content of polyunsaturated fatty acids, starch, ascorbic acid, retinol, and magnesium in the diets and the incidence of disorders in the lipid metabolism.     

浅述电子清纱器检测头电磁铁的设计

在电子清纱器检测头工作原理的基础上,引入了对电磁铁的介绍,并运用拍合式电磁铁工作原理对磁路进行了分析、计算,并得出了电磁铁吸合力的计算方法。明确了电磁铁吸合力的计算、实验是电子清纱器检测头设计的重要基础环节,进而对电子清纱器检测头电磁铁的设计方法给出指导意见。     

肌肉嫩度的影响因素及pH调节牛肉嫩化技术研究进展

嫩度是牛肉的重要品质指标,提高牛肉嫩度可以显著提高牛肉品质。大量研究表明,调节pH能有效改善牛肉嫩度、提高牛肉的品质,且该嫩化方法安全有效、成本较低,正在受到越来越多学者和企业的关注。本文综述了决定肌肉嫩度的主要因素、pH调节嫩化技术的机理及国内外pH调节改善牛肉嫩度的应用的研究进展,为新型牛肉嫩化技术的研究与应用提供参考。     

棉精梳机钳板托脚装配工艺改进及效果

为了解决钳板结合尺寸超差、上钳板偏斜造成的钳板质量不稳定并影响精梳棉条质量的问题,分析钳板结构及组装工艺,通过对钳板左、右托脚原组装工艺进行改进并设计出工装夹具,提高了零件的互换性、可靠性和钳板装配的生产效率,为提高产品质量提供了强有力保证。     

从智能服装的现状探寻钮扣的发展趋势

从智能服装的开发和应用现状入手,对未来钮扣的功能及研究方向进行了详细的阐述,并对其未来的发展进行了有益的探索.钮扣已从最初的实用功能发展为兼有装饰功能、信息功能的多功能混合物,在制作技术上也进入了一个更加高级的阶段,正日益影响到人们生产生活的各个方面.     

胶辊胶圈对成纱质量影响的分析与控制

为了提高成纱质量及胶辊、胶圈的使用寿命,分析了纺纱过程中胶辊、胶圈的硬度、直径、材质以及与工艺的配合,对成纱质量的影响及控制,通过生产实践说明胶辊、胶圈与罗拉组成的牵伸区是须条内纤维运动引导力和控制力平衡的关键,指出采取优选工艺管理措施对不利因素进行控制,能够有效提高成纱质量。     

也谈胶辊胶圈的应用

介绍了棉纺工程用胶辊、胶圈的分类、技术要求、应用及发展方向,重点讨论了条卷工序、精梳工序、并条工序、粗纱工序及细纱工序中胶辊、胶圈对其半制品质量的影响,通过不同品种试纺对比分析了如何选用产品的原则;指出应系统进行胶辊、胶圈应用技术研究,稳定并提高其使用一致性,同时保证相关牵伸部件的一致性,从而提高器材工作效率,合理进行成本管理;牵伸胶辊、胶圈应适应现代纺纱技术重定量、高速度、大卷装的发展趋势,提高其耐磨性、耐高温性能,优化其弹性和硬度。     

规范木工机床管理 确保操作者的人身安全

文章简要叙述了产生木工机床事故的原因、种类、安全管理的要求,并提出了木工机床使用的有关规定。     

印刷机滚筒轴向串动测试方法研究

印刷滚筒采用斜齿轮传动是现代印刷机的基本要求,传动过程中必然在轴线方向产生一个分力,这个分力会使滚筒在轴向方向上产生一个较小的位移,即轴向串动。印刷过程中,滚筒的轴向位移量过大或过小,都会对印刷品产生不不良影响。同时,滚筒的轴向串动量是鉴定印刷机性能的重要指标之一。现代高速印刷机,对机械性能和滚筒的轴向串动量要求越来越高。为了解决在高速运转情况下,有效地掌握和控制滚筒轴向串动量,采用了激光多普勒测振仪,测试并分析各滚筒轴向串动量。以某四色印刷机作为测试对象,通过合理地在滚筒上选定测点,采集了的橡皮滚筒、压印滚筒及传纸滚筒的轴向振动信号,并通过求积分,得到各滚筒的在不同速度下的轴向串动量,并进行了分析,说明印刷速度越高,同种滚筒的轴向串动量越大,表明串动量的大小跟印刷速度有关。在相同速度下,橡皮滚筒与压印滚筒、传纸滚筒的串动量差距较大,表明滚筒串动量大小跟滚筒的装配结构有关,测试结果与滚筒的实际结构和装配情况一致,可作为控制串动量大小的依据。     

梳棉机气流原理分析与实例剖析

利用气流原理,分析了梳棉机气流情况、梳棉机气流不正常的表象以及气流控制的原则、方法和手段,针对梳棉工序几种典型的气流故障进行分析,并提出了解决问题的主要方法与措施。指出：梳棉机的气流控制至关重要,要领会原理,认真观察与摸索。     

The evaluation of the uncertainty of the research method on the geometrical parameters of the embroidery elements

The indirect measurement method of the contour width deformation of the embroidery element is presented in the work. The square-shaped, directly measured, embroidery element is compared to its digital image. Together with the used test methods steps, the reliability criteria for this method are presented as well. The reliability of the method of measuring the geometrical parameters of a closed contour element of an embroidered square shape is evaluated by analyzing its systematic and random errors and by calculating the total standard uncertainty. In assessing the accuracy of the measurement method, there is also a talk about a comprehensive assessment of measurement uncertainty. Measurement uncertainties are considered to be one of the most important parameters of the ability of a method to determine the possibilities of using and applying the method. When measuring the parameters of real samples, the components of total uncertainty related to the characteristics of the specimen (weave, surface density, filling characteristics, direction of the fabric yarn), their variation within certain limits and possible correlation among these components, influence of the standard means, data processing, digital image calibration were evaluated. It has been determined during the research that a negative error ～2.4% with expanded uncertainty ～3.3% complying with the requirements of the reliability of the method is typical for the deformation measurement method applied for the measurement of the five (6, 10, 14, 18, and 22?mm) elements of different contour widths. Because of that the evaluation of the uncertainty according its components is useful while analyzing the factors which have an impact on the deformation.     

器材、专件在提高纺纱设备整体水平中占有重要地位

介绍了2006年中国纺织工业发展态势,分析了国内外主要纺织器材、专件的差距,指出自主创新是竞争力的核心,要实现纺织工业"十一五"发展目标,加快结构调整,转变增长方式,增强纺织产品竞争力,就应着力提高纺纱装备的整体水平,着力提高关键器材、专件的质量.     

Species‐specific differences in the fatty acid profiles of the lipids of the yolk and of the liver of the chick

Differences between four avian species of commercial importance (chicken, turkey, duck and goose), in terms of the relationship between the dietary fatty acids supplied in the diet of the layers and the fatty acid composition of the egg yolk lipids, were investigated. Laying hens of the four species were provided with diets with very similar fatty acid compositions. The polyunsaturated fatty acid content of the diets consisted of linoleic and α‐linolenic acids at approximately 50% and 6% (w/w of total fatty acids), respectively, for all four species. In spite of the very similar dietary provision of fatty acids, the subsequent fatty acid profiles of the yolk lipids differed markedly between the four species. In particular, the proportion of docosahexaenoic acid in the total lipid of the yolk was three to five times greater for the chicken compared to the other three species. By contrast, the proportion of arachidonic acid in total yolk lipid was approximately two times greater for the goose and duck than for the chicken and turkey. Thus the chicken was more efficient at incorporating long‐chain (C₂₂ ) fatty acid of the n‐3 series into yolk lipid whereas the duck and goose preferentially incorporated C₂₀ fatty acid of the n‐6 series. The turkey eggs contained a similar proportion of arachidonic acid but less docosahexaenoic acid than the chicken eggs. The main differences between the avian species in terms of the yolk levels of C_{20 –22} polyunsaturated fatty acids were in the phospholipid fraction since only low levels of these fatty acids were present in the triacylglycerol fraction. The relative proportions of docosahexaenoic acid in the phospholipid and triacylglycerol fractions of the livers of the newly‐hatched chicks of the four species reflected the differences displayed by the yolks. The proportions of arachidonic acid in these liver lipid fractions, however, did not reflect the species differences in yolk lipid composition. © 1999 Society of Chemical Industry     

家具展示设计的研究

家具展示设施是联系家具产品与展示场地的中介,其完备程度直接影响到家具展示的效果,本文探讨了家具展示空间设计入口、界面、交通、宣传等四个部分。     

挖掘国酒潜力打造文化品牌——国酒之乡旅游业发展刍议

酒文化是黔北地城文化丰厚底蕴的重要组成部分,更是黔北地区发展旅游的吸引力因素,随着贵州旅游业的超常规发展,文化旅游资源的开发已成为业内高度重视的理论问题和实践问题,充分挖掘黔北酒文化在旅游业发展的潜力,打造好国酒之乡、“中国酒都”等品牌形象,无论对于仁怀市旅游业乃至贵州旅游业,还是提升国酒企业文化品位、扩大经济效益等都具有其重要意义。     

针织服装缝线用量的估算方法

系统讲述针织服装缝用量的估算方法，指出缝线消耗量计算的影响因素，并附实例说明。     

织机长轴表面超声波光整技术的开发应用

为了提高织机长轴类零件的表面粗糙度,分析了宽幅剑杆织机后梁的特点,结合生产实际,对比分析了外圆磨床与豪克能超声波表面加工设备的投资成本、加工工艺及实施工艺,优化了投资方案,实现了绿色制造,开发应用了织机长轴表面超声波光整技术。指出:用超声波光整技术代替磨削加工,可提高织机后梁表面粗糙度3级以上,且节约加工成本约50%;新技术不仅解决了宽幅织机长轴类零件的加工难题,而且可推广至很多轴类零件的加工,提升加工工艺。