使用Authorware开发CAI多媒体课件的几个关键技术

本文以CAI课件的开发制作过程遇到的一些关键的技术问题加以探讨,并结合实际制作介绍了一些技艺方法。     

计算机网页制作要点及网站管理流程分析

对计算机现阶段的网页制作与管理方面进行针对性的分析,并且总结出在网页制作过程中所需的注意事项,以及对网页管理在整个社会层面中所占的重要性。并对在网页制作过程中一些普遍的要点进行适当推广,这样可以给其他的一些工作人员提供一些必要性的参考。     

浅谈CAI课件制作技巧

结合CAI课件制作实践,谈一些CAI课件制作的技巧.     

多媒体教学软件制作中常用的工具及制作技巧

推荐了3DS MAX、Visual Basic、Photoshop、Dreamweaver、Flash、Adobe Premirer等几种在多媒体教学软件制作中,特别是三维动画和二维动画制作、影视合成、界面美化所需要的工具软件,介绍了它们的使用优势和方法。结合主要几种工具软件的使用特点介绍了在设计制作中的一些技巧,如,按钮的制作和发光效果的实现、材质的选择及Flash和3D动画制作等内容。以期给参与设计制作的研究人员提供一些便利和关键性的参考,为研制单机版和软件改版的高校教师能缩短一些制作周期提供有效方法。     

送你免费的示波器、数字万用表

随着电子技术的发展,课外电子制作也随着发展起来，一些电子制作爱好者常常利用课外活动时间制作一些电子产品。我们知道在电子制作过程中常常要用到一些仪器，如示波器、数字万用表、指针万用表等等，而这些仪器的价格都是比较贵。其实，只要你的电脑带有专用卡，再通过“虚拟仪器”软件，就可以实现示波器，信号发生器、频率计、数字万用表等功能。     

业余制作印制线路板的几种方法

随着电子技术的普及，许多电子爱好者热衷于制作电子电路，但在制作过程中常会碰到一些印制线路板难以绘制的问题。尤其是一些精密电器，如遇到贴片元件、集成电路时，线条通常要达到0．5mm以上的精度，这就让一些电子制作爱好者大失所望。在此介绍两种快速、高效的制板方法，可以绘制一些复杂的线路又能进行成批量     

运用Word2007制作生态循环图

在制作一些文件的时候我们常常需要使用一些图形进行辅助说明,本文将主要向用户介绍了如何运用Word2007中的自选图形以及SmartArt图形对文章进行美化。下面以制作生态循环图为例,向大家讲解一下如何制作具有循环关系的图形,以及如何为图形设置格式,使制作的图形更加美观。     

英语课件制作小经验点滴

现在运用电脑制作课件的老师越来越多,但在制作课件的过程中经常会遇到问题。根据我目前课件制作中遇到的问题,谈谈课件制作的一些方法与技巧。下     

废电路板的利用

笔者在电子制作中利用了一些报废了的旧电路版,先后制作出了一些电子小产品。该方法简单易行,取材方便,经济实用,避免了腐蚀电路版的麻烦,实行了用旧利废,节约开支,加快了制作速度。利用的方法如下:     

FrontPage 2000使用技巧

FrontPage是微软公司开发的网页制作程序,比Dreamweaver早一些。它对初学者来说是一款理想的网页制作软件,以下介绍笔者使用FrontPage的一些经验技巧,供大家参考。     

Construction of characteristic sets for individually adapted pilot support in typical flight regimes

An approach to solution of problems of individually adapted support of actions of the pilot in typical flight regimes is developed. This approach can be recommended, in particular, in the course of preparation and re-preparation of air crew and for implementation of onboard expert systems of advanced aircrafts. The basis of the proposed approach is based on integral evaluation of control actions of the pilot formed based on indirect data and thus not requiring online registration of factors reflecting the current psychophysiological state of the pilot. In this case, data of the regular onboard measurement system of the aircraft are used for obtaining the mentioned integral evaluation. The method of implementation of this approach to evaluating control actions of the pilot based on the formation and parametric representation in the state space of the “aircraft-pilot” system of individual reachable set used further for creation of “Electronic passport of the pilot” is proposed. Algorithms for construction of such sets in the class of ellipsoids and cubes of confidence and their compact representation in the form of the individual probabilistic profile of the pilot are described. Results of simulation of the process of obtaining such sets, which prove the efficiency of the developed concept, are presented     

Multidimensional analysis in problems of education qualimetry

A wide range of problems is solved in the field of educational qualimetry. They are student education quality control, ranking of departments of educational institutions, comparison and evaluation of the quality of the educational process in basic centers and branches of remote education, establishment of equivalent qualifications, mutual acknowledgment of education certificates of the Russian Federation and other countries, and so on. It is reasonable to use statistical methods of multidimensional analysis (principal component and factor analysis) to create a system of objective monitoring of the quality of the educational process. The problem of interpretation of principal components in problems of education qualimetry is considered. Principal components of educational-methodical unions of a particular profession are proposed as the criterion of evaluation of the quality of the educational process of a university under study.     

煤炭工业信息化现状与发展趋势研究

根据"十二五"期间我国煤炭工业信息化的发展要求,介绍了我国煤炭工业信息化发展现状和存在的问题,分析了我国煤炭工业信息化发展需求,提出了未来我国煤炭工业信息化发展的建议。     

物联网与感知矿山专题讲座之四——感知矿山物联网与煤炭行业物联网规划建设

指出感知矿山物联网M2M平台应为应用层服务提供开放的接口,适应完善安全避险"六大系统"、领导带班下井、煤矿灾害监测的需求;给出了煤炭行业物联网的四层结构,指出感知矿山物联网建设是整个煤炭行业物联网建设的重点,其它层次以煤矿安全管理和资源管理为主,并分析了矿业集团级、省级、国家级煤炭行业物联网的应用方式;提出了煤炭行业物联网建设需要注意的问题。     

Cascade Design of a Manipulator Control System with Consideration for Dynamics of Electric Drives

A methodological approach is suggested to cascade design (synthesis) of a control system of a robotic manipulator operating under the conditions of uncertainty and the action of external disturbances with due regard for the dynamics of direct-current drives. To solve the problem of tracking of prescribed trajectories, suggestion is made of the algorithmic two-level decomposition with the separation of the initial problem of control synthesis into independently solvable subproblems of a smaller dimension: synthesis of control actions in a mechanical subsystem and synthesis of control actions in actuators with the further subdivision of the problems of synthesis in each of subsystems into elementary subproblems. A problem is solved for the security of invariance to disturbances with the aid of the methods involving the systems with high gains and discontinuous controls and the composite control. Decomposition procedures are evolved of the synthesis of observers on the basis of measurements of positions of a manipulator and armature currents of electric drives.     

新型煤矿中央变电所供电系统的研究与设计思路

通过分析目前煤矿中央变电所供电系统的技术现状,提出了一种新型煤矿中央变电所供电系统的设计思路。该供电系统主要用于解决煤矿中央变电所配电装置控制电源的可靠性问题。实际应用表明,该供电系统使得煤矿中央变电所的高压真空配电装置动作更加准确、可靠。     

Analysis of optimal motion control for a material point in a central field with application of quaternions

This work is devoted to a survey and generalization of results obtained in the theory of optimal motion control for a material point in the central Newtonian gravitational field using the Pontryagin’s maximum principle and quaternion models of orbital motion. This theory is very important in space flight mechanics, being the background of the solution of optimal control problems of the motion of the center of mass of a space vehicle. In the first part of this work, a survey of quaternion models of the motion of a material point in a central Newtonian gravitational field is given, their advantages and disadvantages are analyzed. The formulation of the optimal control problem of the motion of a material point in the central Newtonian gravitational field and its correlation with the optimal control problem of the motion of the center of mass of a space vehicle is considered. The main problems arising in the solution of optimal control problems of the motion of a material point using the maximum principle, including instability in the Lyapunov’s sense of solutions to adjoint equations, are studied. It is shown that efficiency of analytical investigation and numerical solution of the corresponding boundary-value problems can be increased by the application of quaternion models of orbital motion.     

Framework analysis of the object domain of stationary dynamic problems of the elasticity theory for isotropic media with arbitrary discontinuities

A general scheme of framework analysis of an object domain is considered. The domain involves a wide class of problems of the theory of dynamic elasticity, which allows one to develop a software tool for the synthesis of applications (a CASE method) of parallel high-precision numerical solution of this class of problems. This article proposes a scheme of parallel high-precision solution to systems of singular integral equations that occur in the analysis of certain problems of diffraction of elastic harmonic waves on systems of discontinuities of an arbitrary cross-section. New computational results are presented.     

物联网体系架构的研究

物联网应用于生活的方方面面。物联网(IOT)的大量终端设备不断接入网络,产生大量的数据,物联网的各种终端设备之间的如何连接,如何进行数据通信,如何保证通信安全都是一个很复杂的问题。物联网体系结构的研究是将物联网的功能划分为不同的层次,每一层完成相应的任务,从而保证物联网的功能的正确完成。随着边缘计算的发展,传统物联网体系结构的内容发生了一些变化。物联网中引入边缘计算,可以更好地解决网络安全、负载和延迟等问题。随着未来5G技术的发展,物联网体系结构将在继续发生变化。     

A system of models of a short-lived rocket-induced “Ozone Hole”

We studied the mechanisms of perturbation of the stratosphere by jet exhausts of rocket vehicles and regularities of the recovery of the stratospheric parameters. Asymptotic methods are used to analyze different scenarios of noncatastrophic ozone destruction, one of which is identified as a real mechanism of perturbation of the stratospheric photochemistry during launches of liquid-fuel rockets. Models of the turbulent diffusion of rocket plume and parameters of the initial perturbation are refined. The results of the work markedly increase the realism of the corresponding computer models.