Abstract. The main aim of this research is to improve communication between student and teacher by using the developing mobile information technologies. Implementing such technologies in education may help to develop learning environments to share the knowledge among students and increase their motivation to possible highest level. Based on mobile equipments used in daily life an online student announcement system has been developed which aims to provide sharing of documents and communication ways between students and teachers.
标签： communication Abstract research improve
上传时间： 2017-04-10
上传用户：WMC_geophy
For a programming language, Fortran has been around a long time. It was one of the first widely used 鈥渉igh-level鈥?languages, as well as the first programming language to be standardized. It is still the premier language for scientific and engineering computing applications. The purpose of this handbook is to describe the latest version of this language, Fortran 90. This chapter gives some history of the development and standardization of Fortran and describes the notation used to specify the syntax of Fortran 90.
标签： programming language Fortran around
上传时间： 2014-01-04
上传用户：6546544
The future satellite communication systems are re- quired to support the higher transmission data rate for providing the multimedia services by employing the e铿僣ient modulation method such as multi-level QAM.
标签： communication transmission satellite systems
上传时间： 2017-04-18
上传用户：busterman
The purpose of this project is to explore the issues and implementation of a multiple instruction stream, single data stream processor. We are running two instruction streams on two CPUs which share an address space. The processors share a second level cache, and maintain coherence at the L1 cache with a write-invalidate policy. The L2 cache is two-way set associative, with a block size of 8 words, and a total capacity of 512 words.
标签： implementation instruction multiple purpose
上传时间： 2017-04-18
上传用户：731140412
ecos RTOS 原理介绍和应用开发The design philosophy of eCos was to augment an open-source RTOS (which meant no per-unit royalties) with source-level con?guration tools that would enable embedded developers to scale their RTOS from hundreds of bytes to hundreds of kilobytes without needing to manu- ally change a line of source code.
标签： RTOS open-source philosophy augment
上传时间： 2013-12-16
上传用户：天涯
The use of hardware description languages (HDLs) is becoming increasingly common for designing and verifying FPGA designs. Behavior level description not only increases design productivity, but also provides unique advantages for design verification. The most dominant HDLs today are Verilog and VHDL. This application note illustrates the use of Verilog in the design and verification of a digital UART (Universal Asynchronous Receiver & Transmitter).
标签： increasingly description designing languages
上传时间： 2014-01-08
上传用户：小草123
This document specifies a subset of the C programming language which is intended to be suitable for embedded automotive systems up to and including safety integrity level 3 (as defined in the MISRA Guidelines). It contains a list of rules concerning the use of the C programming language together with justifications and examples.
标签： programming specifies document language
上传时间： 2013-12-11
上传用户：cursor
The W78E58B is an 8-bit microcontroller which has an in-system programmable Flash EPROM for firmware updating. The instruction set of the W78E58B is fully compatible with the standard 8052. The W78E58B contains a 32K bytes of main ROM and a 4K bytes of auxiliary ROM which allows the contents of the 32KB main ROM to be updated by the loader program located at the 4KB auxiliary ROM 512 bytes of on-chip RAM four 8-bit bi-directional and bit-addressable I/O ports an additional 4- bit port P4 three 16-bit timer/counters a serial port. These peripherals are supported by a eight sources two-level interrupt capability. To facilitate programming and verification, the ROM inside the W78E58B allows the program memory to be programmed and read electronically. Once the code is confirmed, the user can protect the code for security
标签： microcontroller programmable in-system W78E58B
上传时间： 2017-04-27
上传用户：yiwen213
Program for : 1) ZOOMING , 2) SHRINKING & 3) GRAY LEVEL RESOLUTION
标签： SHRINKING Program ZOOMING for
上传时间： 2013-12-18
上传用户：zhangyi99104144
Traveling Salesperson Problem Our branch-and-strategy splits a branch and bound solution into two groups: one group including a particular arc and the other excluding this arc. 1.Each splitting incurs a lower bound and we shall traverse the searching tree with the "lower" lower bound. 2.If a constant subtracted from any row or any column of the cost matrix, an optimal solution does not change.
标签： branch-and-strategy Salesperson Traveling solution
上传时间： 2013-12-29
上传用户：璇珠官人
