6 research outputs found
Implementation of a numerical model of groundwater flow in an object oriented programming language.
katedra: NTI; pĹ™Ălohy: 1 CD;CĂlem tĂ©to práce bylo vytvoĹ™enĂ programu pro modelovánĂ podzemnĂho proudÄ›nĂ pomocĂ objektovÄ› orientovanĂ©ho jazyka. VĂ˝chozĂm bodem byl jiĹľ existujĂcĂ program, psanĂ˝ pomocĂ jazyka C strukturovanou formou. Na začátku práce je uveden struÄŤnĂ˝ Ăşvod do problĂ©mu modelovánĂ proudÄ›nĂ kapalin a objektovÄ› orientovanĂ©mu návrhu programu. Po vysvÄ›tlenĂ obecnĂ˝ch pojmĹŻ následuje popis konkrĂ©tnĂ realizaci programu. Nejprve se zaměřĂme na ÄŤinnosti programu, prĹŻbÄ›h vĂ˝poÄŤtu a komunikace programu s okolĂm. Dále je vÄ›nována pozornost jednotlivĂ˝m tĹ™Ădám, navrĹľenĂ˝m k Ĺ™ešenĂ zadanĂ©ho problĂ©mu, pĹ™edevšĂm pak jejich metodám. Konec práce je vÄ›nován srovnánĂ novĂ©ho a pĹŻvodnĂho programu. SrovnánĂ je provedeno jednak pomocĂ programu GMSH, kterĂ˝m jsou vypoÄŤtenĂ© vĂ˝sledky pĹ™evedeny do grafickĂ© podoby, tak i porovnánĂm obsahu souborĹŻ jako textu.The main goal of this bachelor thesis is to create a programme for groundwater flow modelling using an object-oriented approach. The starting point was the already existing programm written in the programming language C in a structured form. At the beginning there is a brief introduction to the problem of groundwater flow modelling and concepts of the object-oriented programming. After the explanation of the basic terminology we will focus on the specific implementation of the programmme. At first, we will focus on the programme functions, calculation phases and programme communication with its environment. Then, we will pay attention to the individual classes created to solve the problem, mainly to their methods. The end of this thesis concentrates on the comparison of the newly created programme with the original one. This comparison is carried out not only by the programme GMSH, which transfers the calculated results into a graphic form, but also by a comparison of the file content as a text
AN AUTOMATIC MEASUREMENT SYSTEM WITH SPREADING RESISTANCE AND PCIV PROFILING FOR CHARACTERIZATION OF SEMICONDUCTORS
This article deals with the design and a control program of an automatic measuring system (AMS). The AMS allows to obtain the carrier concentration profile n(x) from the spreading resistance (SRP, with single point probe) and point contact current voltage (PCIV) measurements on a bevelled structure. The software of the AMS contains the possibility of calibration needed for converting the measured data into a carrier concentration profile and graphical subroutines for conversion of the resistivity to concentration. The software of the AMS further permits monitoring of running measurements by SRP and PCIV by LAN networks. The attained results in designing and creating the control program were verified by measuring and determining the carrier concentration profile on selected structures. The experimental n(x) profile has been compared with that calculated by program SUPREM