新型染发剂的制备与应用

以D＆C红No.17为原料与环氧氯丙烷进行醚化反应,再以硫氢化钠对醚化产物加以改性得到巯基改性D＆C红No.17,并通过红外光谱及HPLC-MS对其结构进行了表征.将巯基改性D＆C红No.17应用于染发剂配方,研究了其染发效果.实验结果表明,巯基改性D＆C红No.17具有良好的染发效果,可应用于永久性染发剂中.     

经中试加工的变色人发超微结构

本文介绍了用电子显微镜观察我所变色人发新工艺加工的色发超微结构,从而了解加工过程中各工序对头发表面及内部结构的损伤情况,结果表明该工艺对色发的品质没有影响,对增加色发的光泽有明显效果,从形态学为该工艺的可行提供理论依据。     

神经系统患者头发中11种微量元素分析测定

使用ICP-AES方法,对人体头发中11种微量元素测定分析,取样于神经系统患者,分析结果与标样值进行对比,并初步考察人发中微量元素对神经网络的影响.     

一种适用于超视距通信的OFDM技术探讨

正交频分复用(OFDM)是最近新发展起来的一种高效调制技术,正广泛地应用于无线超视距通信领域.本文简要叙述了OFDM技术的思想起源、工作原理和数学模型,分析了保护时隙CP的作用,对OFDM这一编码技术所具有的抗码间串扰(ISI)特性进行了探讨,最后对OFDM技术的主要优点和研究热点进行了简单的归纳.     

非织造人发黑炭衬的研制

黑炭衬是西服的高档辅料.为了利用人发固有的特性制造出优于耗牛毛的黑炭衬,作者已研制出一种采用非织造针刺技术生产出人发和化学纤维混和的人发针刺毡,再经后整理加工成人发黑炭衬。该法工艺流程短,产量高,含发率高,可生产出高附加值的人发黑炭村.文中对人发纤维与各类化纤的混和、混和比、非织适的工艺参数以及整理剂、后整理条件作了探索和分析.并用风格仪对树脂整理后的各类人发黑炭衬进行了光滑度、硬挺度、丰满度等性能测试.     

Molecular genetic basis for the rhino mouse from Chinese KM subcolony

Both the rhino mouse and hairless mouse resulted from hairless gene mutation, but they show different phenotypes of skin physiology. The rhino mouse has more similar histological characters to human papular alopecia.Therefore rhino mouse is a good experimental animal model for human papular alopecia. This study reports a hairless mouse named rhino KIZ, arose from KM colony in Kunming Institue of Zoology, by systematic studies on morphology,skin histopathology, gene sequence, pedigree and protein domain analysis. The results demonstrate that a C-to-T transition in exon 11 of hr gene (The mutant gene has been applied for a Chinese patent (patent No. 03135280)) results in the rhino KIZ. The rhino KIZ with clear genetic mechanism will be a useful animal model.     

绵羊角蛋白关联蛋白KAP6-1基因5′端调控区的分子克隆及测序结果比较

根据绵羊毛囊角蛋白关联蛋白(KAP 6-1)基因已知DNA序列设计合成了两个特异性引物,以绵羊基因组DNA为模板,PCR扩增出1 042 bp的特异性片段,连接到pM D 19T载体中获得该片段克隆.经过快速提质粒法筛选、限制性内切酶分析表明该克隆包含所需的目的片段.DNA测序结果也证明该克隆片段与原基因5′端调控区序列相比具有很高的一致性.研究结果为今后制备转基因克隆动物,在毛囊细胞中特异性表达绒毛生长调控基因奠定了基础.     

等厚干涉法测量应用实验研究

利用等厚干涉测量头发丝的直径,可以训练学生的实验操作技巧,加深对实验原理的掌握,丰富了实验内容,避免了实验结果的千篇一律,同时激发了学生的实验兴趣.     

Can hair width and scale pattern and direction of dorsal scapular mammalian hair be a relatively simple means to identify species?

Hair width and surface scale patterns (morphological characteristics) of hair from 21 selected species representing seven orders of mammals from the western United States were studied using scanning electron microscopy (SEM). The orders studied were Artiodactyla, Carnivora, Chiroptera, Didelphimorphia, Insectivora, Lagomorpha and Rodentia. Hair width, scale length and height, scale patterns, and scale position in relation to the shaft were used to characterize differences in morphology for both the species and orders. Specimens were taken from the dorsal scapular region and the centres of hair shafts of mature mammals were used for images. A key (identification chart) was created to characterize each species. These studies suggest that morphological differences in guard hair and underfur could provide a useful atlas for forensics, taxonomy and archaeology.     

5-Br-PADAP显色法同时测定人发中锌、铜、铁的含量

提出了在弱酸性介质及抗坏血酸和乳化剂存在下 ,以 5 -Br -PADAP为显色剂 ,选用了铜、锌、铁的最大吸收峰为 5 5 8,5 6 6和 76 0nm为测定波长 ,按系数倍率法和两波长标准加入法原理处理测量数据 ,直接测定了人发中铜、铁、锌的含量