木材

Pinus massoniana and Albizzia falcata was treated by the new product of SLB fire retardant, Meanwhile the fire-retardant properties had been measured in SLB fire-retardant.

选用新型木材阻燃剂SLB对马尾松和南洋楹两种木材进行了阻燃处理，并用氧指数法和木垛法对处理后木材的阻燃性能进行了测试。

The building rules of GLCM （ the best gray levels and pixels interval） were confirmed by experiment. GLCM texture parameters of 300 wood specimens were calculated and assayed, and then placed into a Competitive Neural Network for classification output. The results are as follows: 1） GLCM parameters Angular Second Moment contrast , correlation , entr

以"角二阶矩"、"对比度"、"相关"、"熵"、"方差"、"逆差矩"作为描述木材纹理的特征参数是合适的。2）在比例为1：1的512×512木材图像情况下，生成灰度共生矩阵的最佳像素间距为4，最佳图像灰度级数为128.3）木材纹理图像灰度共生矩阵的"角二阶矩"、"相关"和"熵"值最大的方向为纹理方向。4）竞争神经网络的分类正确率为88％。

In wood, three distinct types of fungal decay can be distinguished: white rot, brown rot, and soft rot (Eriksson et al., 1990). White rot fungi are the most abundant degraders of wood in nature. Their strategy is to decompose the lignin in wood so that they can gain access to the cellulose and hemicelluloses that are embedded in the lignin matrix.

在木材，三清楚的类型真菌的衰退可能是区别：白色的腐烂，褐色腐烂，和软的腐烂白色的腐烂真菌是最丰富的自然的木材他们的策略要分解木材的木质素以便他们能得到对纤维素的通路而且正在埋入的在木质素点阵式。

Wood is the product of cambial activity in trees, and the seasonal activity style of cambium directly influences wood biomass production, structures and properties.

木材是树木形成层细胞分化的产物，形成层的活动方式不仅影响木材的产量，而且影响木材的结构和性质。

Fractal dimension of wood texture image can represent a lot of texture features, and it is an important characteristic parameter of timber species.

木材纹理图像的分形维数可以代表木材很多的纹理特征，它是木材树种的一项重要数字特征参数。

The water-saturated and boiled specimens of China fir are hot pressed with the average compression rate of 50%. Then they are heat treated in a common oven or in a vacuum oven, with the temperatures of treatment of 140,160,180,200,220℃, respectively. Then the brightness, chromatism, infra red spectra of the specimens are measured and discussed.

为了探讨热处理过程中杉木压缩木材的材色变化规律，以及材色和木材化学主成分变化之间的关系，该研究测定了空气介质和真空中热处理杉木压缩木材(热处理温度范围140～220℃，时间范围0～36h)的明度、色差以及红外光谱。

Obviously treating wood makes it more expensive. But because it does not need to receive further treatments—a shed made from treated wood would not need regular applications of creosote, for example—it should prove economical over its lifetime.

显然木材处理的花费很大，但是因为不需要再次的维护处理，所以在使用期内是划算的，例如由处理过的木材建造的屋舍不再需要常用的家具木材防腐油。

In the paper four aspects have been studied:(1) tree and distributing, belonging to the correlative contents of the dendrology,(2) the macroscopical character in virtue of magnifier and entitative microscope observing the three sections (cross section, radial section and tangential section );(3) the microcosmic character, in virtue of light microscope observing slices.

本文从以下四个方面进行了研究：(1)树木及分布，树木学方面相关的内容；(2)木材宏观特征，借助扩大镜和实体显微镜，在木材的三个标准切面，即横切面、径切面和弦切面上进行观察；(3)木材微观特征，借助光学显微镜观察切片。

This paper reviews the status of resources and utilization of wood from eucalypt plantation abroad from the viewpoints of eucalypt resources, wood properties, processing technologies and market development.

摘 要：从桉树人工林的资源现状、桉树人工林的木材性质、加工利用技术以及桉树木材产品的市场发展4个方面，概述了国外桉树人工林的发展及其木材利用状况。

This paper analyzes both wood supply from commodity limber, peasant wood, artificial board and import lumber and demand from main building industry, peasant wood, firewood, export wood. It collect the data of log, converted timber, plywood, fiberboard, shaving board, paper and cardboard, paper pulp and wastepaper output, import and export volume from 2000 to 2005, forming the quantitative result. At last it analyses the cause that wood supply and demand breach produces and gives resolving method.

本研究对木材市场的商品材、农民自用材、人造板和进口材的供给分析以及对木材市场的主要工业建筑业用材、农民自用材和薪炭材和出口材的需求分析，并收集2000~2005年间原木、锯材、胶合板、纤维板、刨花板、纸及纸板、纸浆和废纸产量、进口量以及出口量数据，按照经验比例折算成原木量，得出各年度木材需求总量的定量分析结果，最后分析了木材供需缺口产生的原因和采取的对策。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。