基于模糊灰色关联分析的软件可信性评估方法

为了提高软件可信性评估的准确性,提出了一种基于模糊灰色关联分析的软件可信性评估方法,该方法使用梯度模糊数计算各个可信指标的权重。首先计算出软件可信指标的正、负理想值,然后使用灰色关联分析方法计算出可信指标度量值对正、负理想值的灰色关联度,依次计算出软件可信性评估值。其中,通过模糊梯形数对可信评估指标的权重值进行处理。应用结果表明：所提方法对于软件可信性的评估是有效的,结果具有较高的准确性。     

樊炳清美学思想初探——兼论与王国维美学思想的关系

樊炳清(志厚)给王国维《人间词》作过序,长期以来,学界对此有争议,但无论否定者还是肯定者,均未联系樊炳清的美学思想以佐证,且默认樊氏别无美学思想及有关"境界"的论述.经钩沉整理,樊氏对美的本体、要素、发生、功能和文学发展观以及"境界"等均有论述.樊炳清认为:美生于适,以心中典型观念视其物而生美感,美乃救济人生之宝筏,有境界故其入人也深,伟大之艺术盛于承平而绝于衰乱.这与他的同学好友王国维的美学思想有一定的相似性.     

Design of Continuous and Discrete LQI Control Systems with Stable Inner Loops

Design approaches were proposed for both continuous and discrete LQI (linear quadratic with integral) controllers, if exist, to stabilize the inner loops in addition to stabilizing the closed loops and minimizing the quadratic cost functionals. Derived from the algebraic Riccati equations involved in continuous and discrete LQI control, the design approaches were straightforward obtained by setting the quadratic cost functionals to decoupled forms with positive definite weighting matrices. Examples were provided to verify the effectiveness of the approaches.     

谈孟克河人行桥的美学设计

以桥梁美学设计为出发点,主要阐述桥梁美学设计的基本观点、美学标准、美学设计的三要素及其实现方法;以此美学原理为基础分析孟克河人行桥的美学设计过程和特点。阐明设计时,如何使人行桥造型与形式、功能、环境相一致。     

声学多普勒剖面仪测沙技术在长江口江亚北槽水域的应用

针对声学多普勒剖面仪(ADCP)测沙在长江水域是否可行的问题,同时采用ADCP与传统的六点法采集水样的测沙方法,在长江口江亚北槽水域进行试验,经过大中小潮的测量,得出完整涨落潮周期里的两种测量数据。经过数据比对发现,ADCP测沙是可行的,ADCP的声强对数变化值与悬沙浓度成正相关的线性关系,并发现水下噪声和水下气泡以及水体介质的多样性是ADCP测沙数据误差的主要来源。     

Wanting to travel,more or less: Exploring the determinants of the deficit and surfeit of personal travel

This study investigates the determinants of peoples desire to increase or decrease the amount of travel they do. We use data from 1,357 working commuters, residents of three different neighborhoods in the San Francisco Bay Area, California. The dependent variables are indicators of Relative Desired Mobility for ten categories of travel (short- and long-distance overall and by several mode- and purpose-specific categories). These variables are measured on a five-point ordinal scale ranging from much less to much more, through which the respondents indicated the amount of travel they want to do (in the category in question) compared to what they are doing now. Censored ordered probit models were developed for these variables, with explanatory variables including general travel attitudes, specific liking for travel in each of the same separate categories, objective and subjective measures of the amount currently traveled in each category, and personality, lifestyle, and socio-demographic characteristics. The results support the hypotheses that the liking for travel has a strong positive impact, and subjective qualitative assessments of mobility have a strong negative impact, on the desire to increase ones travel. Finally, a number of general types of effects on Relative Desired Mobility were identified, among them complementarity and substitution effects. The results of this study can provide policy makers and researchers with new and valuable insight into key principles that affect individual travel demand.     

基于卡西欧5800计算器单交点非对称曲线坐标正反算程序设计

详细介绍了单交点非对称型曲线的坐标正算与反算原理,并根据数学模型,用现在使用比较普遍的卡西欧5800计算器进行程序设计,程序设计为类Basic语言,在保证计算精度的基础上,提高外业的工作效率。此程序也适用于单元曲线及对称型曲线坐标正反算。     

轨道交通高架桥梁发展方向探讨

通过梳理总结国内轨道交通高架桥的发展历程,对国内多条轨道交通高架线进行对比,从美学、环保、施工和全寿命周期设计几方面对轨道交通高架桥未来的发展方向进行阐述,希望为轨道交通高架桥发展提供有益的借鉴。     

二阶多点边值问题三个正解的存在性

利用一个新的不动点定理,得到了二阶非线性n-点边值问题:u″(t) f(t,u(t))=0,t∈(0,1)u′(0)=∑n-2i=1biu′(ξi),u(1)=∑ki=1aiu(ξi)-∑n-2i=k 1aiu(ξi)至少存在三个正解的一个充分条件,其中0<ξ1<ξ2<…<ξn-2<1,ai,bi∈[0,∞)且满足0<∑ki=1ai-∑n-2i=k 1ai<1,∑n-2i=1bi<1。     

莎士比亚的悲剧美学思想

莎士比亚的悲剧作品是欧洲近代悲剧创作的最高成就。本文对莎士比亚的悲剧美学思想进行了全面的分析。本文从莎士比亚的悲剧人物的美学特征、他所建构的悲剧冲突和悲剧的死亡的结局等方面论述了莎士比亚悲剧美学思想的特点，说明了他对后世悲剧创作的深远影响。