竞争对手分析的复杂性初探

对复杂性科学进行了简要的述评,指出可以通过过程设计管理复杂性。在对竞争对手分析的研究中发现,通过充分激发和挖掘在竞争对手分析过程中人的思想,建立系统而科学的竞争对手分析的过程结构,可以大幅度降低在竞争对手分析过程中所遇到的复杂性,因而能够为竞争对手分析提供科学而合理的决策支持,提高竞争对手分析人员的决策能力。     

Analyzing and Designing Business Processes Management System Based on Transformation of Instantiated Ontology＇s State

The paper discusses efforts of finding a simple and transparent method to analyze business processes and developing its management system architecture. By introducing ontology and its state, the approach tried to find a unified representation and a flexible choreography of business processes. The main idea of the paper is the transformation of ontology＇s states, which are the most important scenarios of enterprises. The business activity composition, that is, case composition based on an AI technique, Case Based Reason （CBR）, which is to solve new problems by retrieving solutions to previous problems, and then store the modified solution. The main interest in CBR relies on that it allows a system to avoid past failures and exploit past successes.     

Climate change and hydrologic process response in the Tarim River Basin over the past 50 years

Climate change and hydrologic process response in the Tarim River Basin over the past 50 years are the focus of more and more researchers＇ attention. In this paper, both temperature and precipitation time series were found to present a monotonic increasing trend using nonparametric tests. Noticeably, a significant step change in both temperature and precipitation time series occurred in 1986. By contrasting the trends of natural water process in headstream and mainstream, we found that it was anthropogenic activities not climate change that caused the river dried up and vegetation degenerated in the lower reaches of Tarim River. The results of gray correlation analysis show that the runoff of higher latitude distributing river is more closely associated with winter snow stocking, while that of lower latitude is more closely related to summer temperature. Runoff in the headstream is more sensitive to precipitation, while that in the mainstream is more sensitive to evaporation. The strong evaporation caused by increasing temperature weakened runoff to some extent in spite of the fact that precipitation increased over the past 50 years.     

正则牛顿过程设计n分之一阶分抗电路(英文)

讨论基于一阶正则牛顿迭代求根过程进行任意阶分抗的近似求解方法.通过迭代求解n阶方程的正实根,作为分抗的模拟.给出迭代的精确公式,并分析其收敛必须满足的条件,最后给出相应的模拟无源电路实现方案.     

一类非自衡对象的两自由度内模控制

针对常规一自由度内模控制在非自衡对象中应用的不足,提出了一种基于互质分解的两自由度内模控制器设计方法,并采用H2优化改善了系统的动态性能.一类非自衡二阶非最小相位过程的仿真结果表明,这种方法可使系统同时具备良好的鲁棒特性和干扰抑制特性.     

我国改革受阻深层原因分析

在改革过程中,我国利益表达主体多元化导致利益表达要求的多样性,利益表达客体角色错位引起利益表达信息的失真,利益表达能力的差异性及利益表达渠道畅通的有限性,利益表达效果与成本的不成比例性等,这些就是目前我国错综复杂的利益表达局面。它对处于攻坚阶段我国的改革产生一定阻力,并在一定程度上延缓了改革的进程。     

自制纳米TiO2光催化剂对水中甲基橙的降解

以硫酸氧钛(TiOSO4)为原料,制备了掺银的纳米TiO2光催化剂.将该催化剂用于甲基橙溶液的降解试验,考查了掺银量、催化剂加入量、溶液pH值、溶液浓度对降解率的影响.结果表明:在浓度为10 mg/L的甲基橙溶液(pH=3)中,投加6.0 g/L掺银量为5%的光催化剂时降解率为78.1%.表明用掺杂的纳米TiO2光催化剂处理水中的有机物是一条有效的途径.     

软件演化过程的度量数据采集策略研究

度量数据的采集是度量软件过程的重要环节,讨论了度量数据的采集过程中遇到的问题,以及有效数据采集应遵循的原则,并针对软件演化过程的特点及不同的应用提出了2种数据采集的策略．     

陕西省公路交通观测站现状评价

基于对陕西省现状交通量观测站布局状况所进行的全面分析,根据交通观测站的布设及实现的功能要求,提出了从宏观及微观两个层面的相关的评价指标,应用模糊综合评价法及层次分析法对其进行综合评价。根据评价结果可知,目前陕西省交通量观测站存在布局不均匀、代表性不足问题。并实现了量化评价交通观测站的功能及合理性的方法。     

基于模糊遗传算法的工业过程控制参数优化研究

针对复杂工业过程控制要求多样性、控制参数难调整的问题,提出了一种控制参数优化方法.其中,利用模糊评判方法设计了模糊适应度函数以改进标准遗传算法,把控制要求分解成多个对控制结果模糊评判的因素,由于其具有不同权重,因此控制结果与控制要求的接近程度就转化成了对遗传算法中个体(控制参数)的适应度.应用该算法优化了生物发酵罐温度控制器的控制参数,实验表明,控制器的控制精度、温度变化平稳性、能耗、电磁阀开关频率等指标均得到了改善,能够较好地解决复杂工业过程中控制参数优化的问题.