利用mRNA差异显示技术筛选绵羊毛性状相关基因

利用mRNA差异显示技术（DD-PCR）,比较绵羊肩、腹、腿三部位皮肤中mRNA的差异表达,共获得差异表达的cDNA片段16条,其中肩部、腹部与腿部之间的差异较大;对所有16条差异片段进行测序并在GENBANK中进行检索,未发现有同源序列.提示16条cDNA片段可能为未发现的基因片段,也可能存在假阳性片段.     

羊毛变性为仿羊绒的技术与应用研究

得到了一种将羊毛变性为仿羊绒的酸预处理─氯化法处理技术，优选了处理的工艺流程和主要工艺参数．开发出仿羊绒毛织物产品牙签条呢，取得了好的经济效益     

羊毛接枝改性Ⅰ.羊毛与丙烯腈辐射接枝共聚反应

本文以新疆细羊毛为接枝基体,采用共辐照法,研究了剂量、剂量率和单体浓度对羊毛与丙烯腈伽玛辐射接枝共聚反应的影响,同时,用IR谱、X射线衍射谱和热分析仪对纤维接枝共聚物进行了结构表征。     

成衣生产中毛纺织面料缸差及裁损问题的研究

分析了成衣生产过程中因毛纺织面料的缸差和裁损对裁剪工艺的影响，提出了处理面料的缸差及降低裁损的方法．同时指出，要做好从面料仓库到裁剪车间的衔接，以及从裁剪车间到缝制车间的衔接．为服装企业在生产过程中节省面料，加快工厂的生产周期，提高效率提供依据．     

岩棉生产线主传动控制系统的分析与改进

根据笔者近年来从事岩棉生产线电气系统设计的经验,对目前国内引进的岩棉生产线主传动电气控制系统,特别是主传动系统的结构及控制器的设计原则作一简要分析,并提出了一种基于单片机的新型主传动控制器。     

Effect of the carbon dioxide modifier on the lipid composition of wool wax extracted from raw wool

Wool wax or lanolin is a unique substance secreted by sheep and forms a natural protective coating on wool fibres. It is widely used in pharmaceutical and cosmetic formulations. However, different systems of wool wax recovery from scouring liquour provide a dark impurified greasy product. This product has a lipid composition that differs from the wool wax present on wool fibres. The wool wax extraction method from raw wool with pressurised CO₂ and different modifiers at constant pressure and temperature was studied. Thin-layer chromatography coupled to an automated flame ionisation detection system (TLC/FID) was used to analyse the different lipid classes present in the collected extracts. Moreover, a detailed structural comparison of the cholesteryl esters and hydroxycholesteryl esters was carried out by means of sub-ambient pressure chromatography mass spectrometry in the electron impact and in the ammonia positive chemical ionisation modes. For comparison, qualitative and quantitative analyses of the lanolin extracted in Soxhlet with dichloromethane and commercial cosmetic lanolin were carried out. Differences in the quantity of wool wax extraction and in the lipid composition of different wool wax extracts were detected by changing the modifier polarity.     

羊毛-钯配合物催化反式-2-丁烯酸的不对称水合反应 Efficient Asymmetric Hydration of trans-2-Butenoic Acid Catalyzed by Wool-Palladium Complex

 羊毛-钯配合物作为一种生物高分子金属催化剂制备简单,性能稳定,具有很高的立体选择性. 它能有效地催化反式-2-丁烯酸水合,得到手性化合物(S)-(+)-β-羟基丁酸,其产率和光学收率分别为88.4%和93.0%. 钯的负载量、底物/催化剂比、反应温度和反应时间对产物产率和光学收率有很大的影响. 催化剂重复使用多次后,产物产率和光学收率没有明显变化.     

Application of solid‐phase microextraction with gas chromatography and mass spectrometry for the early detection of active moulds on historical woollen objects

The goal of this work was to determine the microbial volatile organic compounds emitted by moulds growing on wool in search of particular volatiles mentioned in the literature as indicators of active mould growth. The keratinolytically active fungi were inoculated on two types of media: (1) samples of wool placed on broths, and (2) on broths containing amino acids that are elements of the structure of keratin. All samples were prepared inside 20 mL vials (closed system). In the first case (1) the broths did not contain any sources of organic carbon, nitrogen, or sulfur, i.e. wool was the only nutrient for the moulds. A third type of sample was historical wool prepared in a Petri dish without a broth and inoculated with a keratinolytically active mould (open system). The microbial volatiles emitted by moulds were sampled with the headspace solid‐phase microextraction method. Volatiles extracted on solid‐phase microextraction fibers were analyzed in a gas chromatography with mass spectrometry system. Qualitative and quantitative analyses of chromatograms were carried out in search of indicators of metabolic activity. The results showed that there are three groups of volatiles that can be used for the detection of active forms of moulds on woollen objects.     

Comparison of Low Stress Mechanical Properties of Light Weight Wool and Wool Blend Fabrics using the KES-F and FAST Instruments

This study compares the test results of the FAST (Fabric Assurance by Simple Testing) with those of the KES - F (Kawabata Evaluation Systems for Fabrics) for a range of nineteen light weight wool and wool blend fabrics in terms of the low - stress mechanical properties of bending, shear, and tensile deformation. It is found that there are very significant correlations between the corresponding parameters for extensibility and shear rigidity obtained from the test results of the two systems. The correlation between the values of bending rigidity obtained from the two systems is only moderate. Furthermore, for the fabrics tested in this study, the values of bending rigidity, shear rigidity, and extensibility measured using the KES - F instruments are higher than those of the corresponding parameters measured using the FAST instruments. The linear regression equation is given for each pair of corresponding parameter.