试论流行歌曲词作的语体特征

从音乐性和文学性两个角度分析了流行歌曲词作的语体特征。音乐性又分外在特征 (含句式、韵律节奏等 )和内在特征两个方面 ;文学性包括外在的语言方式 (含口语机制、修辞手法等 )和内在意蕴 (含形象性、关联性 )两个方面     

试从师范院校英语专业语法教学的角度论改编《新编英语教程》的必要性

氏理论不仅承认学习者作为学习过程中的主体地位 ,认识到满足其认知 ( cognitive)及实际需求的重要性 ,而且还指出了当今外语教学界“忽视了隐含于语言学习过程中的语言问题或困难”的现实。本文基于最新语言学习理论以及从语法角度对《新编英语教程》所作的调查和评估 ,阐述了该教材无论在其语法知识涵盖方面还是在其语法教学体系方面 ,都未能满足师范院校外语专业学生的具体学习要求。师范院校综合英语课程的教师在使用该教材过程中 ,有必要对其进行改编。本文同时提出了从语法角度改编该教材的三大原则     

土质心墙坝水力劈裂影响因素的研究

分析研究了心墙与坝壳的泊松比、弹性模量以及心墙倾斜度等因素对心墙水力劈裂的影响,研究结果表明,心墙泊松比对心和劈裂的影响较大,提高心墙与坝壳泊松比都有利于心墙防止水力劈裂,另外,坝壳与心墙的弹性模量比愈大,心墙愈易产生水力劈裂,斜心墙比直心墙更利用防止水力劈裂。     

禾本科干草栽培平菇（Pleurotus ostreatus）l的？…

利用蟋蟀草属,马唐属等禾本科干草栽培平菇,粉碎度以３－５ｃｍ为宜,料水比例以１：１．５为佳。菌丝满袋时间为３２．２ｄ比纯棉籽壳处理提前１０ｄ,用干草栽培平菇无污染,生物学效率达１４５．１％以上。     

金上硫醇自组装膜研究进展

对硫醇类化合物在金上形成的自组装膜的自组装动力学、结构、性质及其上的跨膜电子传递机理进行了综述。     

一类K4同胚图的色唯一性

本文主要讨论了当J{i,j,k,l,m,n}l的个数小于等于4时,k4(i,j,k,l,m,n)的色性.     

Posterior Cramer-Rao lower bounds for multitarget bearings-only tracking

Usually, only the Cramer-Rao lower bound （CRLB） of single target is taken into consideration in the state estimate of passive tracking systems. As for the case of multitarget, there are few works done due to its complexity. The recursion formula of the posterior Cramer-Rao lower bound （PCRLB） in multitarget bearings-only tracking with the three kinds of data association is presented. Meanwhile, computer simulation is carried out for data association. The final result shows that the accuracy probability of data association has an important impact on the PCRLB.     

Web mining based on chaotic social evolutionary programming algorithm

With an aim to the fact that the K-means clustering algorithm usually ends in local optimization and is hard to harvest global optimization, a new web clustering method is presented based on the chaotic social evolutionary programming （CSEP） algorithm. This method brings up the manner of that a cognitive agent inherits a paradigm in clustering to enable the cognitive agent to acquire a chaotic mutation operator in the betrayal. As proven in the experiment, this method can not only effectively increase web clustering efficiency, but it can also practically improve the precision of web clustering.     

S-rough sets and the discovery of F-hiding knowledge

Singular rough sets （S-rough sets） have three classes of forms： one-directional S-rough sets, dual of onedirectional S-rough sets, and two-directional S-rough sets. Dynamic, hereditary, mnemonic, and hiding properties are the basic characteristics of S-rough sets. By using the S-rough sets, the concepts of f-hiding knowledge, F-hiding knowledge, hiding degree, and hiding dependence degree are given. Then, both the hiding theorem and the hiding dependence theorem of hiding knowledge are proposed. Finally, an application of hiding knowledge is discussed.     

Decentralized adaptive fuzzy control of time-delayed interconnected systems with unknown backlash-like hysteresis

The problem of decentralized adaptive fuzzy control for a class of time-delayed interconnected nonlinear systems with unknown backlash-like hystersis is discussed. On the basis of the principle of variable structure control （VSC） and by using the fuzzy systems with linear adjustable parameters that are used to approximate plant unknown functions, a novel decentralized adaptive fuzzy control strategy with a supervisory controller is developed. A general method, which is modeled the backlash-like hysteresis, is proposed and removes the assumption that the boundedness of disturbance, and the slope of the backlash-like hystersis are known constants. Furthermore, the interconnection term is supposed to be pth-order polynomial in time-delayed states. In addition, the plant dynamic uncertainty and modeling errors are adaptively compensated by adjusting the parameters and gains on-line for each subsystems. By theoretical analysis, it is shown that the closed-loop fuzzy control systems are globally stable, with tracking error converging to zero. Simulation results demonstrate the effectiveness of the approach.