Co-doped ZnO (ZnO:Co) thin film with room temperature ferromagnetism and spin polarized carriers is one of the advance materials and highly applicable in future development in spintronics. When ZnO:Co films deposited by a £_ growth method in a ion sputtering system, low solubility of Co (3.75%) limits further applications such that a single-guns sputtering thin film growth technique is employed in this study to outreach this limitation. A ZnO:Co bulk with 5 at% of Co was formed by a solid reaction method and used as a target. ZnO:Co films were grown in a single-gun RF sputtering system. However, all films grown at room temperature were insulator which might because sufficient oxygen content in the target and the negative charge of oxygen ion moving toward substrate making the films of full oxygen content. In this study, the post annealing in vacuum environment and the deposition of films in hydrogenation environment are conducted to try to produce various level of oxygen vacancies in the films for understanding the interplay between the oxygen vacancies and the electric transport and magnetic coupling. The present experiment contains two parts: (1) grow films with various thicknesses by controlling deposition time and then applying post annealing process, and (2) grow the films in oxygen reduced environment by introducing hydrogen during growth and taking out partial oxygen content in the plasma and the films. In the first part, the grain sizes of the films are near constant while the crystal quality is improved with the thickness of films. The worse crystal quality of grains, the better the electric transport and the stronger the magnetic coupling after post annealing processes. This indicates that the electric transport and magnetic coupling could be improved when the thin films was formed by crystals with certain disordering and contained a certain level of oxygen vacancies. In the second part, the introduced hydrogen may combine with the oxygen sputtered out from the target before deposition on substrates. It means that the films are grown in oxygen deficient conditions and result in various degrees of oxygen vacancies. Zn clusters precipitate in films when the concentration of hydrogen is over 20%, and at the meantime, they increase the conductivity and suppress the magnetic coupling in the films. These discoveries provide new perspective in understand the electric transport and ferromagnetism mechanics in DMS materials.

Today¡¦s motorcycle business has come to the saturation point in the market of Tawian; consequently, the major motorcycle companies recently competed with each other in building the DMS (Dealer Management System) by using the e-solutions. Through the deployment of an e-DMS (e-solutions of Dealer Management System) for shops of motorcycle, the manufacturers hope that all the channels could be more competitive. The purpose of this research is to explore the influence factors concerning the adoption of e-DMS of motorcycle¡¦s shops. After the studies of literature and empiric, the research is based on ¡§Decomposed Theory of Planned Behavior¡¨ (Taylor and Todd, 1995b) to establish the research model.This resrerch suveryed 250 samples of motorcycle¡¦s shops for study cases The result of the research indicated that factors influenced the adoption of e-DMS for motorcycle shops as follows: (1).¡§Behavioral Intention¡¨ was principally influenced by ¡§Attitude¡¨ and ¡§Perceived Behavioral Control¡¨. The later was less important than the former. ¡§Subject Norms¡¨ showed no obvious influence. (2).¡§Attitude¡¨ was mainly influenced by ¡§Perceived Usefulness¡¨, ¡§Perceived Ease of Use¡¨ and ¡§Compatibility¡¨. The first two factors were more important than the last one. (3).¡§Perceived Behavioral Control¡¨ was chiefly influenced by ¡§Self-efficacy¡¨ and ¡§Technology Facilitating Conditions¡¨. The later was less essential than the former. ¡§Resource Facilitating Conditions¡¨ showed no apparent influence. In the end, this research checks explanation by using three acceptance models, TAM (Davis, 1989), TPB (Ajzen, 1985) and D-TPB (Taylor and Todd, 1995b) to evaluate. All the explanations were nearly close. Because D-TPB considered the contruct of society psychology, it shows better explanation than the others.

This thesis is centred around the study materials with novel electronic properties, including transition metals interacting with semiconductors and unique molecular systems. The idea of advancing modern computing is the basis for motivating the work in that the projects all have potential to be used in novel applications that would impact the efficiency and/or execution of current technology. We have studied two variations of transition metals as they appear in materials and two molecular systems. As for the transition metals interacting with semiconductors, we first discuss transition metal atoms introduced as impurities to a semiconductor lattice, and second, we discuss transition metal oxides that are naturally semiconducting. We have used a number of experimental and theoretical techniques to better understand these groups of materials. Materials prepared through high quality synthesis techniques were studied using x-ray spectroscopy made possible by synchrotron light sources. Computational software then allowed for the experiments to be interpreted by comparing them to the simulations. In the study of transition metals as impurities, we chose the Co:MoS2 system because MoS2 has had promising results with other transition metal dopants. We examined the electronic structure for two purposes: (1) to determine the local bonding environment and locations of the cobalt atoms in order to better understand the behaviour of Co as an impurity; and (2) the overall band gap of the system so that we could evaluate the system’s potential for use in applications. Experimental results combined with our theoretical simulations led us to conclude that the samples available were all metallic, and at low concentrations cobalt atoms were able to substitute directly into the MoS2 lattice. An examination of copper (II) oxide allowed us to investigate the ability to tune the band gap of a known semiconductor through a synthesis process that applied axial pressure to the sample. For a collection of samples prepared at different pressures, x-ray spectroscopy methods showed an increasing band gap with increasing synthesis pressure, a result that is most encouraging for the field of band gap engineering. Using soft x-ray spectroscopy to examine the conduction and valence bands of the two molecular systems, the potassium-doped hydrocarbons and Li2RuO3, was important for drawing conclusions about the materials’ composition and behaviour. Results showed the introduction of new states at the lower edge of the conduction band of K:phenanthrene, a possible reason for its low-temperature superconductivity. Li2RuO3’s electronic structure was examined and compared to calculations performed by collaborators.

The dissertation deals with an enterprise content management system (ECM). It is divided into two larger parts, theoretical and practical. In the theoretical part, the author describes a lifecycle of enterprise applications and an enterprise content management system. The practical part focuses on analysing the current state and proposing a call for the tender for the supply of the information system.

Made available in DSpace on 2016-12-08T17:19:36Z (GMT). No. of bitstreams: 1 0 Capa - 1 Introducao.pdf: 288577 bytes, checksum: 440b6dcfb8697dcbdfbfecd21ba397c1 (MD5) Previous issue date: 2010-07-19 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This work is part of a research project at UDESC, which aims to understand and compare the process of fracture of ADI with dual matrix structure, such as sites of plastic deformation concentration and crack nucleation, and paths of crack propagation. The fracture mechanisms of two types of duals ADI with different ausferrite volume fraction were compared to those of conventional ADI. Intercritical austenitising temperatures chosen were 790°C and 820°C, and resulted in dual ADI with 17% and 85% of ausferrite respectively. The full ADI, which was austenitised at 900°C, was used to serve as reference material. The three materials were austempered at 360°C for 2h. Results showed that in dual ADI with predominantly ferrite, the nucleation of cracks occurred along the interface graphite/matrix. Increasing the ausferrite volume fraction, the nucleation of cracks tended to occur along the inclusions and intercellular boundaries. Moreover, in dual ADI, the crack propagation and concentration of plastic deformation occurred preferentially in the ferrite. With respect to the fracture´s analysis, all materials showed that the quantities of fracture ductile/fragile were equivalent. The fractures had an aspect predominantly ductile, being formed mostly by dimples with some regions of quasi-cleavage. / Este trabalho faz parte de uma linha de pesquisa executada na UDESC, que visa entender e comparar o processo de fratura dos ADI duais, tais como, locais de concentração de deformação plástica e de nucleação de trincas, e caminhos de propagação de trinca. Os mecanismos de fratura de dois tipos de ADI duais com diferente fração volumétrica de ausferrita foram comparados com o ADI pleno. As temperaturas de austenitização intercrítica escolhidas foram 790°C e 820°C, e resultaram em ADI duais com 17 e 85% de ausferrita respectivamente. O ADI pleno, no qual foi austenitizado a 900°C, foi utilizado para servir de material de referência. Os três materiais foram austemperados a 360°C por 2h. Verificou-se que para o ADI dual com predominância de ferrita, a nucleação da trinca ocorreu junto à interface grafita/matriz. Conforme aumentou a fração volumétrica de ausferrita na matriz, a nucleação da trinca tendeu a ocorrer junto à inclusão intercelular e em contornos de célula. Além disso, nos ADI duais, a propagação da trinca e a concentração de deformação plástica ocorreu preferencialmente na ferrita. Vale ressaltar que os três materiais apresentaram quantidades de fratura dúctil/frágil equivalentes. As fraturas tinham uma característica predominantemente dúctil, sendo formadas na maioria por alvéolos com algumas regiões de quase-clivagem.

The objective of this thesis is to provide a survey of document digitalization and to analyse the market of companies outsourcing the document digitalization. The first part of the thesis decribes the technology of scannig and the methods of document recognition and data minig. It also decribes the systems of barcodes used to identify documents. Furthermore, this thesis includes the principles of document saving and electronic (digital) signature issues from the viewpoint of Czech legislation. Its contribution lies in analysing the companies dealing with outsourcing of the document digitalization and in the view of a company using these services. A brief outlook to the future regarding this topic is included as well.

This thesis analyzes the field of Document Management Systems (DMS) in Small and medium enterprises (SME). To be more specific, it analyzes ways and opportunities of a transition of the actual company situation to a cloud solution realized by the means of outsourcing. Due to the fact that this transition consists of many steps, some of them are critical for a successful realization, those steps have to be precisely analyzed and afterwards a corresponding solution has to be proposed. This analysis describes in a detail all the connections, which may interfere with each other and which may also interfere with the whole transition. The goals of this thesis are mainly to provide a specialized analysis of the transition to the cloud DMS, analysis of available cloud solutions, their categorization and assessment, description of connections emerging from the use of the cloud DMS in Small and medium enterprises, description of impacts of realized solutions and finally a summary of the analysis into a compact unit designated to be used as a manual for cloud DMS implementation in the Small and medium enterprise.

The thesis focuses on the design of a new solution for the exchange of documentation between the energy distribution company XYZ and its external partners. Based on the analysis of the current documentation exchange process and the requirements of the stakeholders are proposed appropriate system solutions with the necessary functionalities and procedural steps of the exchange.

The thesis describes state of the art financial consultant in the marketplace and their processes with reference to Czech legislation. Objective is map their processes and on the basis consultation create new information system, that would have improved work to consultants and enable effective accounting.

This thesis on "Design of an information system" suggests solutions for company knowledge management support with advance documents registration for better inform employees and customers. It analyzes existing information system and whole knowledge management as a part of it. Thesis defines business processes connected with knowledge and information, so whole this part of the system for their support too.