基于Linux环境的实时调度项目的研究

Linux操作系统是一种多任务、多用户和多处理器的现代通用操作系统,实时任务调度是它的一项非常重要的功能;根据Linux对实时任务采用的调度算法,结合现代多线程编程技术,给出一个关于多线程实时调度实验项目的设计.     

"形式"的智慧言说:《海浪》的叙事艺术

弗吉尼亚.伍尔夫在其巅峰之作《海浪》中,通过对情境、结构、时间诸叙事因素的巧妙运用,彻底摆脱了物质性现实对于作家表现人物内心世界的羁绊,为小说艺术找到了一种崭新的、综合性的“有意味的形式”。这种形式所成就的既是伍尔夫要将小说建树成一种伟大的艺术形式的理想,也是她要“使个别的生命沉没在一种更普遍的视野之中”的思想意图。     

基于时间竞争的速度营销

随着信息网络技术的发展,企业面临的经营环境发生了变化,速度越来越影响市场营销,冲击着传统营销组合方式。整合营销资源,构建信息网络平台．提高反应能力．创造速度优势。这是赢得市场竞争胜利的关键所在。     

Evaluation and publication delay in Ibero-American scientific journals

This article analyses the review, acceptance and publication dates of a sample of 21,890 articles from 326 Ibero-American scientific journals from all subject areas and countries included in the Latindex Catalogue 2.0 and published between 2018 and 2020 (freely available as an open access dataset). The aim is to discover evaluation and publication times. The evaluation process takes a median of 110 days, the publication process, a median of 82 days, and the whole process, a median of 224 days. Statistical differences are found according to periodicity, subject areas, countries, existence of a printed version and article type (Call for Papers or General articles). From the data we find that the delay in publication is longer than publishers themselves report to the DOAJ. STEM areas present the most similarity in publication patterns, having a higher number of evaluation days (Ed) than publication days (Pd); Arts and Humanities present the opposite pattern, with a higher Pd than Ed. In the case of Social Sciences, the times are similar. General articles and Call for Papers articles differ in terms of Ed, but not Pd, indicating that Call for Papers revisions are faster.     

大学化学实验培养学生创新能力的探索

大学化学实验在注重学生三基能力培养的基础上,通过增加密切结合社会实际和科学前沿的实验内容,以学生为中心的自主式、合作式、研究式为主的教学方式以及多种实验室开放等手段来培养学生的创新能力。     

地板时间疗法在自闭症儿童功能性情绪发展中的应用

地板时间疗法是DIR的核心方法,其评估和干预模式的重要依据——功能性情绪发展能力包含六个基本阶段和三个进阶阶段的情绪发展阶段指标,这些阶段指标持续强调让儿童建立愉快的情绪体验和有意义的人际情感关系,将自闭症儿童刻板的行为举止转化为有意义的沟通内容,进而鼓励他们主动沟通,产生认知学习和逻辑思考的内容。     

萨冈的微笑与忧愁

萨冈是法国当代文坛一位才情横溢的女作家,她以细腻的深刻的心理剖析、聪颖洒脱的手法、简洁清新的文风而备受法国年轻人青睐。她的笔下多为两人或三人的感情波澜,在平淡的字里行间透着一股淡淡的忧愁。在这种微笑背后隐藏着悠悠的浪子情怀究其根源就是一时间之伤。     

Stabilization of Delayed Networks with Different Nodes

In this paper,the control of complex delayed networks with different nodes is proposed.Firstly,the stabilization of coupled networks with time delay is investigated.By constructing a Lyapunov function,a linear feedback controller design procedure for the networks is converted to the problem of solving a set of linear matrix inequalities.Then the results are extended to networks with both delayed dynamical nodes and delayed couplings.It is shown that the stabilization of complex networks is determined by the dynamics of each uncoupled node,coupling matrix and feedback gain matrix of networks.Two examples are simulated.In the first example,a network with 10 nodes consisting of Lorenz systems and systems proposed by Zhang in 2009 is given.It is found that the network states are divergent without control,and convergent under designed linear feedback controllers.In the second example,a larger network with 100 nodes consisting of delayed Chen systems and delayed Lorenz systems is given.The proposed method is also effective for large scale networks.     

Estimates of Central Moments for One Kind of Exponential-Type Operators

In this paper,the explicit estimates of central moments for one kind of exponential-type operators are derived.The estimates play an essential role in studying the explicit approximation properties of this family of operators.Using the proposed method,the results of Ditzian and Totik in 1987,Guo and Qi in 2007,and Mahmudov in 2010 can be improved respectively.     

基于Gabor核函数窗设置的图像识别

提出一种依据Gabor核函数窗的设置对红外图像进行识别,首先给出Gabor核函数窗的定义,分析核函数窗对红外图像识别卷积过程,给出了核函数窗的时窗和频窗,最后在对红外图像滤波识别时给出了最优核函数窗的计算方法。计算机仿真实验表明,只有在优化核函数窗设置设置情况下,才能取得了较好的识别结果。