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1.
杨涛  李隐峰  胡秋玲 《电子科技》2013,26(12):131-134
介绍了Android操作系统,以及基于Android的电话查询系统的关键技术,对该系统的具体设计与部分实现过程进行了阐述,给出了系统运行结果。经测试,该系统能在目前主流的Android移动设备如手机、平板电脑上正常运行,该系统立足于常用生活电话信息查询,为生活服务提供了方便。  相似文献   

2.
刘嘎琼 《信息技术》2011,(10):142-145,149
为满足高校师生教务移动查询信息的需要,综合分析了以往Java ME应用系统集成技术的缺点,结合Web服务技术的特点,提出了一种基于Java ME-Web服务的教务师生移动查询系统框架,并通过在Java开发环境NetBeans和应用服务器GlassFish中实现教师移动查询任教课程学生名单的服务功能,研究了Java ME-Web服务的关键技术,结果表明,高校教务师生查询系统引入Java ME-Web服务技术,能够较好解决移动访问、复用网络方法和数据的集成问题。  相似文献   

3.
伴随3G移动互联网技术的发展和智能手机的普及,使得广大考生方便获取相关考试信息,通过移动终端进行自主报名,本研究设计并开发了基于Android的全国计算机等级考试报名系统,实现考生通过移动客户端提交报考信息、查询考试成绩等功能。  相似文献   

4.
针对高校的信息管理和教务流程系统的广泛应用及智能移动终端的逐渐普及,借助于智能移动开发技术的迅速发展,设计了一套面向高校学生的校园移动网络信息平台。该平台应用Android技术进行开发,采用MVC框架。现对该平台的体系结构、功能进行了详细的分析,介绍了设计中所应用的的关键技术。平台经过测试,运行稳定,实现了设计目标所规定的功能。  相似文献   

5.
基于Android移动开发平台,设计了一款公交辅助导航软件系统.该系统基于Android操作系统,结合SQLite数据库和谷歌地图应用程序编程接口,通过全球定位系统,实时定位用户当前位置,完成公交线路查询、公交站点查询、出行线路规划等功能.能满足用户在不同情况下完成公交信息查询和路线规划需求.实验结果表明,该系统能运行于基于Android系统的移动设备,为用户出行带来了方便.  相似文献   

6.
为了解决无硬件覆盖的区域积水信息,设计基于Android技术的App进行积水上报,通过基于电脑浏览器端展示积水点分布及实现查询统计功能,上报的数据同时可将这些数据同步至防汛平台为城市防汛排水调度决策提供数据支持。  相似文献   

7.
随着移动互联网技术的不断发展,以及智能手机的广泛普及,掌上教务信息系统逐步成为校园信息化建设的重要组成部分.本文设计了一款掌上教务信息系统,包括信息查询、学生选课、消息推送和系统服务四大模块,学院师生可以通过此软件及时掌握教务动态,方便快捷.同时还详细介绍了系统实现过程中用到的关键技术.  相似文献   

8.
基于Android操作系统,利用Wi-Fi,GPS等技术,设计出一套在移动终端上使用的考勤系统。在该系统中,外勤人员可以实现快速定位,并把位置信息发送到服务器,同时,自己还可以查询以往记录。简约的界面设计,快速的定位获取,便捷的信息查询,为外勤人员的工作带来了极大的便利。  相似文献   

9.
为更好实现智慧校园中一卡通系统与其他系统的有效衔接,以与教务系统对接为例进行探究。首先设计智慧校园一卡通系统架构,描述各层功能。然后结合教务系统的特点,设计系统对接总体方案,包括总体流程、成绩查询流程、学籍异动流程。最后设计接口对接方案,包括接口要求、接口类型、接口选择、接口设计。在接口设计中,设计注册信息数据结构,定义主要子系统接口的参数和功能。该设计思路对智慧校园一卡通系统与其他系统对接具有一定借鉴意义。  相似文献   

10.
针对目前的高校教师教学辅助系统的智能化、便捷化不足,本文提出了一种基于Android的高校教师教学辅助系统,方便教师学生在日常教学中使用.该系统利用了Android平台的功能,采用ASP.NET MVC 6技术实现手机端和服务器端的通信,本地端采用SQLite进行本地化存储查询.同时对于用户界面进行了精心的设计与美化,增强用户体验感.  相似文献   

11.
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.  相似文献   

12.
High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET > PDMAT > TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.  相似文献   

13.
In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal (200) (2d = 0.4027 nm) is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line(w), the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line(x), the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines(y), the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line(z) in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line(q) in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution(λ/△ 2) is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.  相似文献   

20.
An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.  相似文献   

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