一种高职本科软件综合实训设计探索

本文介绍了高职本科专业软件综合实训的一种方案并给出了具体的实施办法。本文的设计思想和实现方法是软件综合实训中理论与实际结合且不失高职综合实训基本要求的有意义的尝试。     

动感型 斯文底RoadXTrack思铂睿

动感不失斯文!低调不失个性!性感不失矜持!黑色快车，市区游走，销魂、摄魂、吸引!这辆就是HondaAccord（CU2）思铂睿!     

《春秋Q传》同人漫画创作大赛

《春秋Q传》是一款大型Q版MMORPG网络游戏，以春秋战国时代为背景，结合《东周列国志》、《山海经》等书给我们呈现出了一款时尚且不失古典、卡通且不失真实、唯美且不失诙谐的新概念网络游戏。自从9月20日展开公测，一路走来可谓艰辛，[编者按]     

以小博大 灵巧出色 佳能彩色多功能数码复合机新品问世

近日，佳能推出了一款面向中小企业用户商务应用的主流彩色多功能数码复合机产品image RUNNER C1028。此款产品被专家形容为“精巧而不失强大，灵动而不失稳健”，其特点可谓非常鲜明。     

γω演算——一种高级合成逻辑

本文创建了γω演算,它在语言层次方面远高于curry合成逻辑(简称C逻辑),但在理论上依然奠基在C逻辑之上.这是一种高级的合成逻辑,它不失C逻辑的简洁性,更重要的,它可直接地用作编程语言,或者间接地用作各种各样“带糖衣”的函数编程语言、作用式编程语言和归约编程语言的语义理论基础.文中论述了γω演算的理论及其与C逻辑的内在联系.     

《“我”的MV单曲音频后期制作——两款效果器的使用》教学设计

●创新整合点本课把单纯的"声音"与计算机学科相关联。既有严谨的科学理论,又有现代化的教学手段,还不失对音乐审美的追求。充分利用了多媒体教室的计算机、监听耳机、局域网等软硬件设备,拓展了音乐常规课的教学内容与模式,使学生学到如何聆听"声音"、美化"声音"的技     

我的霸道我做主

霸道，这个从来不会让人觉得温柔的名字却征服了众多”铁血好汉”的心，粗犷不失个性的外观，简洁不失高档的内饰，还有一路驰骋时的魅力都是让我们爱他的理由!不是最好的那个，但却永远有让人有爱他的理由。     

成功的十个启发

自信不失谦虚谦虚不失自信 　　李开复1961年出生于台湾,母亲在43岁高龄时生下他前,被医生数次劝阻.因为医生透露,如此高龄的产妇很可能生下白痴.……     

李斯勤的“智慧箴言”

已经忘记第一次接触李斯勤的具体时间和场合了，但是他给记者的第一印象却非常深刻：年轻富有激情却不失稳重，谦虚随和而不失睿智。去年6月记者应邀去新加坡实地采访新加坡智慧国2015（iN2015）计划实施情况时曾约好给他做个人物专访，却因时间问题一直拖到现在。     

恋上网,从联想:联想手机 黄金斗士A8

这款联想黄金斗士A8明显延续了联想手机的固有设计风格,直r板触屏,机身线条简约别致,硬朗又不失圆润,相比前代产品机身更加紧凑,5.0英寸屏幕虽然相比黄金斗士S8(5.3英寸)略小一些,但仍不失大气,屏幕分辨率依然达到了HD(720X1280像素)级别,用起来也更为舒服。     

Generalized sampled data feedback control of distributed parameter systems

In the sampled-data control literature there are necessary conditions and sufficient conditions for stabilizability of distributed parameter systems by generalized sampled-data control. For finite-dimensional systems the necessary conditions are also known to be sufficient. We show that this equivalence extends to the infinite-dimensional case if the underlying semigroup is analytic. However, for general systems, the necessary conditions are not sufficient, nor are the sufficient conditions necessary. We prove this by a single example with a free parameter – one choice of parameter shows that the necessary conditions are too weak, and another choice shows that the sufficient conditions are too strong.     

Generalized sampled data feedback control of distributed parameter systems

In the sampled-data control literature there are necessary conditions and sufficient conditions for stabilizability of distributed parameter systems by generalized sampled-data control. For finite-dimensional systems the necessary conditions are also known to be sufficient. We show that this equivalence extends to the infinite-dimensional case if the underlying semigroup is analytic. However, for general systems, the necessary conditions are not sufficient, nor are the sufficient conditions necessary. We prove this by a single example with a free parameter – one choice of parameter shows that the necessary conditions are too weak, and another choice shows that the sufficient conditions are too strong.     

On conditions of optimality for singular control problems

Satisfaction of the generalized Legendre-Clebsch condition is known to be a necessary condition of optimality in singular control problems. Recently, a new additional necessary condition of optimality was discovered. In this note, we demonstrate by means of an example that together these two necessary conditions are, in general, insufficient for optimality in singular control problems.     

On the equivalence of some necessary conditions for vector-valued criteria problems

Two types of necessary conditions have been derived for Pareto optimal solutions of vector-valued criteria problems. One type involves a scalarization process, while the other is in terms of a rank condition. In this correspondence it is shown that the two sets of necessary conditions are equivalent in the sense that if a solution satisfies one set of necessary conditions, it also satisfies the other.     

On controllability and stabilizability of probabilistic Boolean control networks

The controllability of probabilistic Boolean control networks(PBCNs)is first considered.Using the input-state incidence matrices of all models,we propose a reachability matrix to characterize the joint reachability.Then we prove that the joint reachability and the controllability of PBCNs are equivalent,which leads to a necessary and sufcient condition of the controllability.Then,the result of controllability is used to investigate the stability of probabilistic Boolean networks(PBNs)and the stabilization of PBCNs.A necessary and sufcient condition for the stability of PBNs is obtained first.By introducing the control-fixed point of Boolean control networks(BCNs),the stability condition has finally been developed into a necessary and sufcient condition of the stabilization of PBCNs.Both necessary and sufcient conditions for controllability and stabilizability are based on reachability matrix,which are easily computable.Hence the two necessary and sufcient conditions are straightforward verifiable.Numerical examples are provided from case to case to demonstrate the corresponding theoretical results.     

部分可观察强规划中约减观察变量的研究

给出了一种约减观察变量方法——假设所有的状态变量都不是观察变量,在此基础上逐步增加必要的观察变量,从而最终得到一个必要的观察变量集合.在添加必要的观察变量过程中,该方法不要求得到所有变量的相关信息,从而具有更好的通用性.根据是否存在单个观察变量能够区分域中任意两个状态的问题,分别给出了两种约减观察变量方法:当存在一个观察变量可以区分规划域中任意两个状态时,算法可以得到一个最小的观察变量集合;当不存在这样一个观察变量时,算法可以得到一个尽可能小的观察变量集合,但不能保证该集合最小.     

Persistence of equilibria for locally asymptotically stable systems

In this paper, we derive a necessary condition for local asymptotic stability of equilibria of nonlinear systems with parameters. As a corollary of our general result, we deduce Brockett's necessary condition for local asymptotic stability of equilibria of nonlinear autonomous systems. The proof we give, however, is quite different from the existing proofs in the literature. We show by way of an example that our new necessary condition is stronger than Brockett's necessary condition, but retains much of the user‐friendly appeal of Brockett's criterion. We further illustrate our result with more examples. Copyright © 2001 John Wiley & Sons, Ltd.     

采用线性不定方程组的Hamiltonian存在判定条件

本文基于{0，1}线性不定方程组和顶边关联矩阵．提出了一个基于无向Hamiltonian图的充要判定定理。并证明了满足该定理的不定方程组解向量对应给定圄的Hamiltonian回路中边的集合，本文还推导出两个可以基于矩阵秩的Hamiltonian回路存在的必要判据。     

First-order and second-order necessary conditions for optimality of singular controls

The derivation of necessary conditions for the optimality of singular controls (in the sense of Pontryagin's maximum principle) in optimal control problems is inves- tigated. A new class of the necessary conditions is developed. This class of necessary conditions is composed of two parts, the first-order and second-order necessary conditions. As an application of these necessary conditions, an illustrative example is given, which shows that the necessary conditions developed are stronger than the generalized Legendre-Clebsch condition. That is, the singular control in the example satisfies the generalized Legendre-Clebsch condition, but does not satisfy the necessary conditions developed in this paper.     

ANSI's Crisis Risks much more than ANSI

The American National Standards Institute experiences lessening support because of the way it chooses to conduct business. As a result, the United States may lack the standards (and focus) necessary to use effectively both current and future funds for creating the information technology infrastructure necessary to compete in today's global markets. Steps necessary to revitalize ANSI include seeking more information technology expertise in leadership roles, addressing specifically information technology needs, and providing a leadership now missing.