香菇胶囊菌种使用效果研究

就香菇胶囊菌种在生产上的应用进行了对比试验，结果(1)应用香菇胶囊菌种比用传统菌种可节约接种时间50％：(2)胶囊菌种的菌棒接种污染率比传统菌种降低11．65％；(3)胶囊菌种接种至菌丝萌发的时间和菌丝长满全袋时间分别较传统袋装菌种接种方式迟20h、6．33d，但菌丝日生长速度没有显著差异；(4)在产量上，两种接种方式没有显著差异，但在制作成本上，每1000袋菌棒，用胶囊菌种比用传统菌种可节约100.6元。因此，在生产上应用胶囊菌种具有接种方便快捷、接种成活率高、成本降低等优点。     

基于生态文明视角的鄂尔多斯模式反思

从生态文明建设视角,对＂鄂尔多斯模式＂进行了综合评判与深刻反思。在对＂鄂尔多斯模式＂所带来的产业结构失衡、生态环境代价沉重、人民收入水平低下等问题进行了梳理的基础上,对造成上述问题的原因进行了深层次挖掘。结果表明：鄂尔多斯市煤炭开采规模无序扩张导致资源环境代价沉重,产业层次低下导致全市高产出与低收入之间矛盾突出,而科技...     

数控技术的现状及发展趋势

阐述了数控技术的现状、发展历史及未来发展趋势。     

基于产业融合论西部产业集群发展模式创新

各种经济现象表明,产业融合已经成为当今社会产业经济发展的主流。毋庸置疑,西部产业集群要想真正发挥自身的特点与优势,成为西部地区经济发展的引领,就必须顺应产业融合的发展规律。笔者认为,关键是在构建集群的发展模式。有了良好适宜的模式,产业融合就有了发挥作用的平台,就能丰富产业发展的形式和内容,从而给西部产业集群的发展带来更多的机遇和更大的发展空间,最终促成集群整体能力的升级。     

我国经济增长质量评价的新思考

分析认为,目前对经济增长的评价中,不但评价指标存在缺陷,而且忽视了经济增长的波动和度、产业结构的合理性、资源和环境代价、生活质量问题等几个应考虑的重要因素.引用了大量数据分析了有关因素对经济增长质量的影响.     

遥感资料在呼和浩特市区城市工业区商业贸易区布局结构分析中的应用

本文介绍了应用彩红外航片、黑白航片分析呼和浩特市区城市工业区、商业贸易区布局结构的技术。     

The Design Strategies of Modern Industrial Architecture in China

According to the development trends of modem industrial architecture and combining with the situation of China, the essay first proposes the design strategies of modern industrial architecture in China, and then strongly verifies these strategies with deep analysis of advanced design precedents, in the end points out these strategies are very necessary and appropriate in China.     

A Genetic Algorithm Based on Repeating Crossover and Optimum Maintaining Strategy

A novel genetic algorithm,simply written as REGA, is proposed with the idea to limit the number of repeating crossover and replacing the worst individuals of the current generation by the best ones of the former generation. The algorithm overcomes the premature phenomenon of the simple genetic algorithm. According to Markov's limitation theorem, we prove its global convergence,explore the properties of the genetic algorithm written as RSGA only based on repeating crossover,and provide a method to calculate the mathematic expectation on the absorption time for the two algorithms. Finally,the simulation shows that the algorithm REGA can solve the optimization problem containing more than one global optimal solutions,on one hand,while eliminating the drawback of local optimum and rapidly enhancing the average fitness. On the other hand, REGA is valuable for function optimization.     

运用逐步聚类法进行农地适宜性评价

运用逐步聚类法进行农地适宜性评价需要完成一系列工作.首先,要根据种植某种作物的生长需要,选择评价因素,并需对获得这些因素的数据进行正确化、数量化、标准化处理.在这个基础上才能运用数学中的聚类分析,通过编纂程序,进行计算机运算,分出合理的类级,再根据每类聚类中心的高低,决定出每类的土地等级.     

Experimental Study of a Novel Detector''s Technique for Industrial X-ray Computed Tomography(CT)

Detector, influencing on system's performances, is one of some key techniques in x ray industrial computed tomography (CT) systems. Considering the existing problems for sensor (or detector) in CT systems, a new sensor is experimented by using optoelectronic integrated technique with optic fiber face plate optically coupling and transmission, and it is proved to be high integrated, high efficiency, high resolution, and low cost in industrial CT systems.