k-维格图的全染色

图的全染色是点染色和边染色的推广．图的所有元素（顶点和边）都将染色且任相邻或关联的元素染色不同。全色数ΧT（G）=min{k｜图G有k-全染色}。本文确定了k-维格图的全色数情况。     

一种直观判别两个表面色相对偏色的方法

本文介绍了一种利用分色差概念，精确计算出两个表面色的相对偏色，并对ＣＩＥＬＡＢ色差分析图上直观显示出来。     

图的一个强染色问题

设Ｇ（Ｖ，Ｅ）是一个图，△（Ｇ）为图ＧＫ 顶点的最大度，图Ｇ的一个Ｋ－染色ｆ，若使得任意的两个距离小于等于２的顶点ｕ，ｖ满足ｆ（ｕ）≠ｆ（ｖ），则称ｆ是Ｇ的ｋ－强染色，并称Ｘｓ（Ｇ）＝ｍｉｎ｛ｋ：存在Ｇ的一个ｋ－强染色｝为强色数，对任意一个图Ｇ，是否存在常数Ｃ，使得Ｘｓ（Ｇ）≤Ｃ△（Ｇ）？该问题是在９９全国图论研讨会上提出来的，本文证明了对任意的常数Ｃ，都存在偶图Ｇ，使Ｘｓ（Ｇ）≤Ｃ△（Ｇ）。     

纺织品超声波染色的研究和进展

论述了超声波化学的基本原理和特点，及其在纺织品染色工艺中应用研究所取得的成果，并对其应用前景进行了分析和评价。     

Study on Application of Natural Plant Dye Gardenia on Cotton Coloration and the Dyeing Mechanism

IntroductionIn thelast fewyears ,the application of natural dyes intextile dyeing is being explored worldwide .In comparisonwith synthetic dyes , the natural dyes are generallyenvironmental friendly and nontoxic . Natural dyes canexhibit better biodegradability and generally have a highercompatibility with the environment . Correlative researchwork is being under way around the world on theapplication of natural dyes . The introduction of naturaldyes into modern dyeing procedures that can be …     

环氧树脂包埋块半薄切片进行免疫组化染色的方法

为应用环氧树脂包埋的电镜制样切片进行光镜免疫组化观察，探讨脱树脂试剂的浓度、新鲜度、作用时间及切片的厚度对Ｅｐｏｎｅ－８１２环氧树脂包埋的人体子宫平滑肌组织经氧化醇钠脱树胆处理后，进行ＡＢＣ法α－肌动球蛋白免疫组化染色效果的影响。结果显示新鲜配制的过饱和氧化醇钠，作用５ｍｉｎ共脱树脂效果良好且不掉片，免疫组化染色显色明显、清晰。表明脱树脂试剂的浓度、新鲜度和作用时间是实验成功的关键因素。切片厚度未     

关于算子组(β)性质的几个讨论

讨论关于算子组α=（α1，…，αn）包含B（X）（β）性质的几个问题。主要结果是关于交叉交换算子组ab-z和ba-z在A（U，X）（C^∞，X））上的单射性和有闭值域是等价的。     

Synthesis and Application of a Polymeric Crosslinking Agent for Improving Fixation of Vinylsulfone-type Dyes on Cotton by a Pad-drycure Process

A new class of novel polymeric crosslinging agent （NPCA）, which contained silane coupling group and the epoxy groups, was designed and synthesized in our laboratory. NPCA was a non-formaldehyde multifunctional crosslinking polymer. The cotton fabrics dyed with 8.0% （owf） Vinylsulpone-type dyes were treated with 3.0%- 4.0% NPCA, 0.5 mol/L potassium thiocyanate as a catalyst, then padded through two dips and two nips to reach a wet pickup of 80%- 85%, then dried at 80℃ for 2 minutes and cured in oven at 140- 150℃ for 3 minutes. Crocking fastness and fixation （%） were improved with up to 1.0 -1. 5 units, 35%- 50%, respectively. And there was little difference between the color yield of dyed fabrics before and after the treatment at certain conditions. The possible crosslinking mechanism of NPCA was also investigated. It was concluded that NPCA can improve colorfastness of cotton fabric by means of the three-dimensional network, covalent bonding and other molecular forces.     

细胞角蛋白免疫组化染色在乳癌腋淋巴结转移检测中的价值

13例乳癌共取腋淋巴蛄189枚,每例平均14.69±4.42枚。每枚淋巴结分别作连续6张切片H、E染色和1张切片细胞角蛋白免疫组化(CKIHC)染色,光镜下现察。结果H、E染色检查13例中7例淋巴姑转移,转移率53.85％,淋巴结转移数目19枚,转移度10.05％;CKIHC染色检查淋巴结转移8例,转移率61.54％,淋巴结转移数目21枚,转移度11.11％。虽然二种方法检查腋淋巴结转移率和转移度结果无显著性差异(P>0.05),但不仅HE染色发现有转移的淋巴结CKIHC染色皆为阳性,而且HE染色未能发现的微小转移CKIHC染色亦可检出。即CKIHC染色使腋淋巴结癌转移的检出增加。因而可以认为1张切片CKIHC染色可替代连续6张切片HE染色。     

一类图的邻强边色数的上界

证明了当图G的最大度Δ(G)恰以n的某个函数为界时,G的邻强边色数χ′as(G)≤│cn│,其中0相似文献