Information Strategy

Tato diplomová práce je zaměřena na možnosti využití moderních přístupů k řízení informačních technologií, konkrétně se věnuje potřebám inovace řízení životního cyklu vývoje software. Teoretická část práce je zaměřena na metody využívané pro informační strategii. Na základě analytické části práce, ve které hodnotím stávající přístup k řízení služeb informačních technologií, navrhuji řešení ve formě zákaznicky orientované informační strategie firmy a přístupu k řízení vývoje software jako součásti životního cyklu služeb.This diploma thesis is focused on the possibility of using modern approaches to information technology management. Specifically, it concentrates on demands for innovation of software development lifecycle management. The theoretical part of the thesis is focused on methods used in information strategy. Based on results of the analytical part, where I evaluate current approach to information technologies service management, I suggest solutions in the form of customer oriented information strategy and approach to the management of software development as a part of service lifecycle.

Simulacija prijenosa digitalne slike uporabom DVB kodova za unaprijedno ispravljanje pogreške

The contribution deals with the simulation of the digital video signal transmission through the baseband transmission channel model. The simulation model that covers selected phenomena of DVB (Digital Video Broadcasting) system signal processing is presented. The digital video signal is represented with the digital data of one non-compressed video frame that is channel encoded and protected against errors with the forward error correction (FEC) codes. The transmission channel model has influence on transmitted digital data and its distortion and the pertubative signals affect on the data decoding. The developed interactive simulation software (Matlab application) features are outlined too and the conclusion presents efficiency of the used FEC codes.Doprinos rada je u simulaciji prijenosa digitalnog videosignala putem modela kanala za prijenos u osnovnom pojasu. Prikazan je simulacijski model koji uključuje odabrane postupke obrade signala u sustavu za radiodifuziju digitalnog videosignala (DVB, Digital Video Broadcasting). Digitalni videosignal je predstavljen u obliku digitalnih podataka nekomprimirane slike, koja je kanalno kodirana i zaštićena od pogrešaka uporabom kodova za unaprijedno ispravljanje pogreške (FEC, Forward Error Correction). Model prijenosnog kanala ima utjecaj na prijenos digitalnih podataka, tako da izobličenje i smetajući signali u kanalu djeluju na dekodiranje podataka. Također su opisane značajke razvijene interaktivne programske podrške za simulaciju (Matlab aplikacija) i zaključci koji prikazuju djelotvornost korištenih FEC kodova

Simulacija prijenosa digitalne slike uporabom DVB kodova za unaprijedno ispravljanje pogreške

The contribution deals with the simulation of the digital video signal transmission through the baseband transmission channel model. The simulation model that covers selected phenomena of DVB (Digital Video Broadcasting) system signal processing is presented. The digital video signal is represented with the digital data of one non-compressed video frame that is channel encoded and protected against errors with the forward error correction (FEC) codes. The transmission channel model has influence on transmitted digital data and its distortion and the pertubative signals affect on the data decoding. The developed interactive simulation software (Matlab application) features are outlined too and the conclusion presents efficiency of the used FEC codes.Doprinos rada je u simulaciji prijenosa digitalnog videosignala putem modela kanala za prijenos u osnovnom pojasu. Prikazan je simulacijski model koji uključuje odabrane postupke obrade signala u sustavu za radiodifuziju digitalnog videosignala (DVB, Digital Video Broadcasting). Digitalni videosignal je predstavljen u obliku digitalnih podataka nekomprimirane slike, koja je kanalno kodirana i zaštićena od pogrešaka uporabom kodova za unaprijedno ispravljanje pogreške (FEC, Forward Error Correction). Model prijenosnog kanala ima utjecaj na prijenos digitalnih podataka, tako da izobličenje i smetajući signali u kanalu djeluju na dekodiranje podataka. Također su opisane značajke razvijene interaktivne programske podrške za simulaciju (Matlab aplikacija) i zaključci koji prikazuju djelotvornost korištenih FEC kodova

Digital Video Image Quality

Optical physic

The manufacture of cylindrical case by forming

Bakalářská práce, vypracovaná v rámci bakalářského studia oboru Strojírenské technologie, předkládá návrh technologie výroby válcového pouzdra tvářením. Navržená technologie výroby odstupňovaného pouzdra zahrnuje operace vystřižení polotovaru, tažení výtažku s přírubou a ostřižení příruby. Na základě výpočtů je tažení realizováno ve třech operacích za pomocí přidržovače. Výtažek v poslední operaci tažení získává svůj konečný tvar dle výkresové dokumentace. Cílem bakalářské práce je navržení technologického postupu výroby a zpracování výkresové dokumentace nástroje pro výrobu válcového pouzdra.Bachelor theses done within bachelor study of specialization in an Engineering technology submits a proposal of production technology of a headless bushing by shaping. A proposed production technology of graded bushing involves an operation of cut-out of semifinished material, draw of an extract with the flange and a curtailment of the flange. The draw is made on the basis of calculation in three operations with the help of holder. According to graphical documentation the extract gets the final shape in the last operation of draw. The purpose of bachelor theses is a design of technological processing and elaboration of drawing documentation of an implement for making the headless bushing.