基于信息公理的车间布局问题评价方法

车间布局评价问题属于典型多属性决策问题.为了使信息公理更适合于解决多属性决策问题,通过增加满意度项改进了原有的信息量计算方法.属性值被划分为精确型、不确定型和模糊型,同时针对效益性、成本性、定值性和区间性属性给出了这三种数值类型的信息量的计算办法.改进后的信息量同时反映系统的成功概率以及决策者满意程度,并能够对包含多种数值类型的多属性决策问题进行评价.最后,作为实例,对焊接装配车间的布局方案进行了评价,结果验证了所改进的信息公理对于解决多属性决策问题的可行性和有效性.     

中温固化型PF树脂胶粘剂的研制

将竹帘胶合板的"冷进冷出"工艺改造成"热进热出"工艺,关键技术是降低热压温度,而一种中温固化型的酚醛树脂是实现该技术的主要条件.选取树脂反应终点的粘度、甲醛、氢氧化钠与苯酚的摩尔比、促进剂加量4个主要因素,以每个因素三个不同水平进行正交试验,合成各种不同配方的胶粘剂,然后进行竹帘胶合板的压制.通过对制品耐沸水性和耐老化性的检验,确定适合中温固化酚醛树脂的最佳工艺参数为:胶粘剂反应终点的粘度为1.08 Pa·s,甲醛、氢氧化钠与苯酚的摩尔比分别为1.75和0.30,促进剂加量为苯酚质量的4%.按这组参数合成的酚醛树脂胶粘剂可以在105～115℃的中温条件下实现快速和完全固化.     

The use of compensatory and non-compensatory multi-criteria analysis for small-scale forestry

Small-scale farm forestry has the potential to offer many benefits both to landholders and the wider community. As with all changes in land-use practices, there are associated benefits and costs and these are not uniformly distributed. They have varying impacts on the different values, aspirations, goals and objectives that exist within the community. Furthermore, the community does not consider these values, aspirations, goals and objectives of equal importance. The degree of concern can vary from minor to high and overriding all other considerations. When evaluating farm forestry options it is necessary to address all of these concerns. This paper examines the combined use compensatory and non-compensatory multi-criteria analyses to evaluate forestry options, in a case study for the Darling Downs region of Queensland, Australia. These aggregation techniques are found to be highly complementary and together provide a comprehensive analysis. The compensatory technique provides a sound measure of overall performance of a forestry system, whereas the non-compensatory technique alerts decision-makers to presence of particularly poor performance with respect to individual criteria. The compensatory technique used is simple and understandable even for those with non-mathematical backgrounds. This analysis can identify and aid communication of the relative benefits and costs, and trade-offs, between economic, environmental and social considerations.     

FORESTAR：A decision—support system for multi—objective forest management in Northeast China

Past monoculture forestry in China has contributed to countrywide ecological disasters and economic difficulties in forestry regions. China‘s new forestry programs, Natural Forest Conservation Program and Returning Farmlands to Forests Program, provide opportunities for ecosystem management of mountain forests in China. A decision support system, FORE-STAR, has been developed for better managing and protecting natural forests in Changbai Mountain area. It uses GIS-based forest inventory data at a scale of forestry bureau. The first version contains two sub-modules: forest operation and forest res-toration. Under each sub-module, users can compare several decision options and make optimal choices. It can help field for-esters, forest managers, and policy makers make multi-objective and consistent decisions in planning forest management at hierarchical administrative scales.     

居住区植物造景初探

居住区是居民最直接的生活空间,居住区环境的好坏直接关系到居民的生活质量,其环境的建设应以改善和维护小区生态平衡为宗旨,以人与自然和谐为目标。通过分析国外居住区植物造景动态和国内居住区植物造景现状,提出了居住区植物造景发展趋势。     

干涉测量土地利用影像分类决策树法森林识别研究

利用ERS－1和ERS－2 SAR串行轨道数据经干涉测量处理生成的干涉测量土地利用影像对森林识别方法进行初步研究。内容包括基于目标识别选择合成干涉测量土地利用影像处理方法、应用斜分类器（OCI）生成分类决策树以及在自主开发的软件中调整分类决策树、对分类结果进行像元级别上的精度检验和误差分析等。结果表明：ERS－1和ERS－2 SAR串行轨道数据经干涉测量处理，利用其强度影像和相干影像可以合成多种干涉测量土地利用影像；其中最小值影像和 标准差影像较之于其它强度影像和变化影像更有利于区分水体和森林；由于OCI生成决策树的算法决定了在分类处理中没有不可分类别的存在，所以在初期选择分类类别时，要尽可能多的覆盖原始影像的数值区间；选择的各类别样本数据要尽可能的“纯”，以减少类别间数值区间的重叠，从而减少误分类情况。     

决策分析中两种模糊综合评价模型的应用

模糊综合评价是决策分析中常用的方法,在不同的情况中应该采用不同的模型进行综合评价.介绍了两种评价模型.它们在出发点、建立方法、评价内容和实现过程上各不相同,各有千秋.相对模糊综合评价建模简单,运算方便,但不能确定方案本身的优劣程度.而多级模糊综合评价能区分影响因素的层次,降低了权重分配的难度,能判断出方案本身的好坏,但建模相对复杂,运算工作量大,隶属度构建复杂.     

国内外竹材造纸及其经济效益评价

本文根据国内外(包括中国、印度、日本、孟加拉国、缅甸、菲律宾、澳大利亚、苏联等)报道的竹材制浆造纸方面资料综合而成。文章内容有引言、竹材纤维形态与化学成分、世界竹材造纸工业简况和造纸竹材利用的经济效益。文章列举大量事实说明造纸工业用竹材为原料比用针叶材或阔叶材经济效益高。     

桂香18号茶树新品种不同茶类适制性中试研究

桂香18号是广西桂林茶叶科学研究所从广西凌云白毫茶群体种中采用系统选育法选育的新品种,用其原料与不同茶类国家级对照种进行制作绿茶、乌龙茶、黑茶的适制性对比试验,并与其亲本及国家级对照种进行感官审评对比。结果表明,桂香18号继承了母本适制性广的优良特性,产品品质独特,制作的各种茶类产品品质优,花香突显,其中绿茶、红茶品质均优于母本对照种和国家级标准对照种;乌龙茶品质与国家级乌龙茶标准对照种相当,优于母本对照种;黑茶品质与母本相当,优于广西六堡茶(黑茶)标准对照种。为今后推广该品种适制产品提供参考。