数学实验应用下的计算机高等数学教学探讨

随着计算机技术在数学领域的推广和应用,越来越多的高校在数学实验的应用中结合计算机技术,把枯燥泛味的数学实验转换为直观的图形,从而引起学生对数学的学习兴趣,将对数学实验应用下的计算机高等数学教学进行分析和探讨。     

高职数学课程教学改革的研究与探索

针对高职院校课程体系中的数学课程课时减少，学生学习高等数学兴趣不高和教师授课缺乏积极性等诸多问题，提出对高等数学进行教学改革。本文以江西信息应用职院数学课教学改革实践为依托，从课程内容、教学方式及数学竞赛等方面进行研究与探索。     

运用信息技术改进高等数学实践教学的研究

在信息时代,数学已经不仅仅是一种基础理论,而且也是一种可以直接产生经济效益的数学技术。目前,在高校的教学改革大潮中,尤其在非数学专业课程设置中,高等数学课程的地位遭遇危机。本文从教学改革实践出发,针对学生的数学知识水平,对高等数学的内容进行了整合、教学方式进行了改革,运用信息技术和数学软件的进行高等教学,对激发学生的学习兴趣,提高参与度,培养学生主动学习的能力及创新能力有很大促进作用。并对几年的考试成绩进行统计分析,改革后的学习成绩有显著提高。     

高等数学课堂提问的教学研究策略

在数学教学的过程中,提问是教学模式的一种教学手段,课堂提问是联系教师和学生以及教材内容的一个纽带,在高等数学教学的过程中,课堂提问不仅能激发学生学习数学的热情和兴趣,更能启发学生开动脑筋进行思考,同时也是检验学生学习效率的一个有效的途径。所以说,在高等数学课堂教学中就少不了提问。提问在数学教学和学生学习的过程中具有十分重要的意义。当今,高等数学课堂教学提问还存在着一些问题,这些问题的存在阻碍了数学教学质量的提高。对此,对于高等数学课堂教学提问存在的问题,本文提出了几点策略,进行了剖析和研究。仅供参考。     

Matlab软件在高等数学教学中的应用路径

高等教育阶段的管理类和理工科学生的必修课程之一即为高等数学,但是在实际上,高等数学理论的学习难度较大,并在一定程度上枯燥无味,所以学生学习过程中可能存在理解难度大、学习难度大以及学习积极性难以提升等情况,并导致学习效果受到严重影响,为了改善这一情况,有必要在高等数学教学中应用Matlab软件,使高等数学教学内容更加生动和具体,也就更有利于提升学生对于高等数学知识的理解和记忆的效果,并提升其学习积极性和学习效率,所以本文主要针对Matlab软件在高等数学教学中的应用路径进行分析,以供参考。     

运用Mathematica软件提高高等数学教学质量

介绍了Mathematica软件在高等数学的几个典型问题上的应用.在高等数学的教学中引入Mathematica软件,有利于增强教学内容的直观性,激发学生的学习兴趣,提高学生分析问题和解决问题的能力,提升高等数学教学质量.     

MATLAB软件在高职数学教学中的应用

MATLAB是一种新型的数学软件,将其应用在高职数学教学中,是适应现代教育发展的必然要求,有利于提高学生的数学素养。本文队MATLAB软件的功能进行介绍,还对MATLAB软件在高职数学教学中的应用效益及意义进行了分析,希望可以促进MATLAB软件的推广,保证MATLAB软件更好的为数学教育服务。     

负反馈放大电路的仿真分析

采用EDA仿真软件Multisim作为先进的教学手段。本文简要介绍仿真软件Multisim的主要特点，以及利用其强大的虚拟仪表和仿真分析功能分析负反馈对放大电路的影响。通过仿真实验可直观地得出结果，力求将仿真实验融入电子技术课程教学的各个环节，使理论与实践得以密切结合，提高教学质量，提高学生实验兴趣。     

借用高数浅识城市生活污水处理的流程

本文是基于作者在一次实践锻炼的过程中了解到有关城市生活污水处理的具体流程,学习了很多教学课本之外的相关知识,并用高等数学知识对其进行简单的分析和研究.该文充分体现了高等数学做为工具在生活中无处不在,进一步揭示数学来源于生活,生活离不开数学.     

基于Matlab的电气工程综合仿真实验教学研究

综合性实验是提高学生整体实践能力的一个重要手段,采用Matlab仿真软件进行综合性仿真实验克服了有限的实验条件,增强了学生对多门专业课、专业基础课的基本理论、基本操作技能的掌握,提高了学生的工程实践能力和创新能力。实践表明,综合仿真实验项目的开发,既满足了学生实验教学的需要,同时也为实验教学改革、全面提高教学质量探索出了一条新路。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.