Abstract In order to cut down the management expense, the government must initiatively reduce the contact hours with people. Owing to the declination of people¡¦s daily time available and the decrease of expecting counter services, it is demanded that the services provided by the government be more timesaving and convenient. People's accepting degree on network and computerized government, an invisible customer services, is therefore elevated. In response to Territory Bureau's computerization exercise, the Ministry of Interior has founded a group, "management and research group for Territory Bureau's computer network", to work on the program since 1980. The prevalence of mobile communication and the application of in-time internet network these years have led to establishment of Territory Bureau's computerized system and led to transformation of the Bureau's exercise from manpower to computer network service. It is already a trend to deal work via Internet. It is urgent that government promotes computerization to the Bureau of Territory to make it more flexible and agile in order to provide people with more integral, convenient and versatile services. This study, from the users' viewpoint, explores the factors that influence the implement of Territory Bureau's computer network. The purpose is to understand the factors that influence the users and to provide further information for future expansion of the Bureau's program. Since the Territory Bureau's computer-network system is an innovative technology, the study of people's attitude and acceptation toward such technology is innovative as well. "Technology acceptance model" is the theoretical background in this study that explains users' behavioral intention in adopting the Territory Bureau's network information. By applying the theory of "diffusion of innovation", the influences of "relative advantage", "compatibility" and "complexity" for using the above system is investigated and discussed. Statistical questionnaires' survey is adopted in this study. The results show that the more "positive attitude" people have, the more "behavioral intention" they have in utilizing Territory Bureau's Internet information. The following factors are found to affect people's "positive attitude": more "relative advantage", "compatibility" and "complexity" people know about; more "perceived usefulness" and "perceived ease of use" people realize toward Territory Bureau's internet informatio

<p>Learning materials have multiple forms, such as books, overhead slides, computer files, blackboard notes by teachers, narration to the notes, video/audio tapes etc. Since the forms are highly inhomogeneous, it becomes difficult to collect and practically use them by a particular learner for individual study at home. Such multiple media are also expensive in management, since human resources are needed to keep the material repositories in order. One solution of the problem lies in centralized active digital repositories. Such repositories aim to simplify the learner’s work and boost learning efficiency. With introduction of interactivity and live communication tools such repositories become learning platforms exceeding the functionality of “passive” digital libraries. Such learning platforms could be easily used both for on-campus and distance education.</p><p>This dissertation presents an evaluation of a digital repository of interactive multimedia content in the field of Heat and Power Technology: Computerized Educational Platform (CompEdu HPT). The platform evaluation consisted of integration of the tool into the university curriculum and then collection of feedback from students and teachers. The evaluation concerned usefulness of the platform for learning, aspects of instruction improvement, collecting observations about how the platform is used by students, as well as their opinions about the IT application direction chosen. The methods included: online feedback forms, questionnaires, interviews, discussions and observations.</p><p>The evaluation demonstrated that the main strength of the platform is the integration of learning materials in one portable package. The students appreciated structured and logically arranged information that was available for easy access. Coverage of a broad area of knowledge related to heat and power technology was also pointed out as an advantage with reflection on the very low price of acquisition of the materials. The most popular elements of the content in use included: simulations, lecture notes, the print function, the glossary, and calculation exercises. A major part of the students declared the high value of CompEdu in facilitating home study. Nevertheless, not all the students had a positive impression: around one-fifth of them did not find the platform useful and expressed preference for more traditional learning media. The majority of the negative opinions concerned content quality, which directly related to weaknesses of the content production and review process.</p><p>The evaluation emphasized the importance of material quality and amount as the key issue for a good learning platform with relatively smaller importance of presentation forms. The evaluation also considered aspects of functionality from the user point of view. Differentiation between popularity of simulations showed that simulations used by teachers during lectures have higher educational value than those for individual use only. The popularity of the printing option indicated a need for adaptation of digital materials for paper publishing. The general conclusion for practical use of multimedia tools in education was that high usability and simplicity of information access should be the focus point of any chosen approach in the direction.</p><p>The CompEdu evaluation suggested that after thorough content review and addition of an efficient search mechanism the platform can successfully deliver rich learning content. The platform gave an extensive real-case illustration of how multimedia can be used in educational practice. Due to the evaluation, the CompEdu e-learning group has collected rich experience and know-how in the field of active knowledge repositories. The experience will be used for development of a more sophisticated learning platform working in the global Internet environment with major focus on information accessibility by easy search.</p>

Η παρούσα διπλωµατική εργασία πραγµατεύεται την κατασκευή µιας εργαλειοµηχανής µε αρθµητικό έλεγχο µέσω Η/Υ (CNC router) , ικανής για την κατασκευή ηλεκτρονικών πλακετών για τις ανάγκες του εργαστηρίου. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτροµηχανικής Μετατροπής Ενέργειας του Τµήµατος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστηµίου Πατρών. Σκοπός είναι η κατασκευή της µηχανικής διάταξης της εργαλειοµηχανής µε επιφάνεια κατεργασίας πλακέτας µεγέθους τουλάχιστον Α4, των ηλεκτρονικών διατάξεων οδήγησης των κινητήρων, της διάταξης και της διασύνδεσης µε τον υπολογιστή, καθώς και των απαραίτητων προγραµµάτων για την ανάγνωση και επεξεργασία των σχεδίων και τη δηµιουργία και διαβίβαση των εντολών ελέγχου από και προς το µηχάνηµα ώστε να υλοποιηθεί το σχέδιο. Αρχικά έγινε η ανάλυση των απαιτήσεων του εργαστηρίου, επιλέχθηκε η συγκεκριµένη µέθοδος και αναλυθήκαν οι προδιαγραφές που πρέπει να έχει το µηχάνηµα. Έπειτα, έγινε η επιλογή της τοπολογίας και του υλικού του µηχανήµατος, των κατάλληλων κινητήρων, του συστήµατος ολίσθησης και του συστήµατος µετατροπής της κίνησης από περιστροφική σε γραµµική, έτσι ώστε να καλύπτονται µε το, χαµηλότερο δυνατό κόστος, οι απαιτήσεις µεγέθους, δύναµης πρόωσης, επιτάχυνσης, ανάλυσης, ακρίβειας, στιβαρότητας και ταχύτητας κίνησης που αναλύθηκαν στο πρώτο στάδιο, µε το χαµηλότερο δυνατό κόστος. Στη συνέχεια σχεδιάστηκε σε πρόγραµµα τρισδιάστατου σχεδιασµού η µηχανική κατασκευή της διάταξης και ανατέθηκε σε κατάλληλο εργαστήριο η κατασκευή των κοµµατιών και η συναρµολόγηση της. Το επόµενο βήµα ήτανε να σχεδιαστούν και να κατασκευαστούν τα κυκλώµατα για την οδήγηση των κινητήρων και η κεντρική πλακέτα που αναλαµβάνει την οµαλή διασύνδεση τους µε τον υπολογιστή. Τέλος, γράφτηκαν κατάλληλα προγράµµατα τα οποία αναλαµβάνουν την ανάγνωση του σχεδίου της πλακέτας και παράγουν και διαβιβάζουν τις κατάλληλες εντολές στους οδηγούς των κινητήρων, ώστε να γίνουνε οι απαραίτητες κινήσεις από αυτούς και να υλοποιηθεί το σχέδιο στην πλακέτα. / This thesis is about designing and building a fully functional CNC machine, capable of building printed circuit boards.

Η παρούσα διπλωματική εργασία πραγματεύεται την μελέτη και την κατασκεύη μιας αυτοματοποιημένης διάταξης επίστρωσης ηλεκτροδίου σε στερεό ηλεκτρολύτη για εφαρμογή σε κυψέλες καυσίμου.Η εργασία εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Σε αυτό το πλαίσιο,σχεδιάστηκε μια εργαλειομηχανή τύπου CNC(Computer Numerical Control),υψηλής ακρίβειας,ικανή να εκτελέσει κινήσεις σε τρείς άξονες,ελεγχόμενη από μικροελεγκτή και οδηγούμενη από βηματικούς κινητήρες. Αν και ο απώτερος στόχος της εργασίας είναι η κατασκευή της διάταξης που επιτελεί το επιθυμητό έργο,προηγήθηκε εκτενής θεωρητική μελέτη και ανάλυση όλων των χαρακτηριστικών και παραγόντων του συστήματος. Αρχικά,γίνεται αναφορά στις κυψέλες καυσίμου,στους διάφορους τύπους της συγκεκριμένης τεχνολογίας καθώς και στις εφαρμογές που αυτή ενσωματώνεται. Οι κυψέλες καυσίμου,ως αντικείμενο επιστημονικής μελέτης αλλά και ως εμπορευματικό προϊόν παρουσιάζει εξαιρετικό ενδιαφέρον και έχει απασχολήσει σε μεγάλο βαθμό την επιστημονική κοινότητα τα τελευταία χρόνια λόγω της μεγάλης αποδοτικότητάς τους στην παραγωγή ενέργειας αλλά και της φιλικής προς το περιβάλλον λειτουργίας τους. Εν συνεχεία,αναλύεται ο όρος αριθμητικός έλεγχος και αναλύονται οι εφαρμογές στις οποίες αυτός χρησιμοποιείται ενώ παράλληλα γίνεται αναφορά στο μηχανολογικό τμήμα της κατασκευής,στα υλικά και στο σχεδιασμό τέτοιων διατάξεων. Σημαντικό μέρος της εργασίας αφιερώθηκε στους βηματικούς κινητήρες που επελέχθησαν ως κινητήρες προώσεως της εργαλειομηχανής.Αναλύονται τόσο οι τύποι βηματικών κινητήρων όσο και ο έλεγχος τους ενώ ακόμα παρουσιάζεται και η στατική αλλά και η δυναμική τους συμπεριφορά σε ένα σύστημα. Τον ‘’εγκέφαλο’’ της διάταξης αποτελεί ο μικροεπεξεργαστής που ενσωματώνει το πρόγραμμα λειτουργίας της εργαλειομηχανής,ο οποίος αναλύεται σε μεγάλο βαθμό ξεκινώντας από τον ορισμό του,τη φύση της λειτουργίας του και καταλήγωντας στον ειδικότερο ρόλο που διαδραματίζει στο κύκλωμα ελέγχου της διάταξης. Ακόμα, περιγράφεται η αρχή λειτουργίας και η κατασκευαστική λογική της πλακέτας ελέγχου και οδήγησης του συστήματος.Τα συμπεράσματα της εργασίας και οι μελλοντικές επεκτάσεις που πιθανώς η διάταξη επιδέχεται παρουσιάζονται ως επίλογος. / The purpose of this thesis is the construction of an automated device that coats electrodes in to solid electrolyte for application in fuel cells. The project was conducted in Electromechanical Energy Conversion Laboratory, at Department of Electrical and Computer Engineering of the University of Patras. In this context, a CNC (Computerized Numerical Control) machine, capable of carrying out movements in three axes, controlled by stepper motors was designed. Although the ultimate purpose is the construction of such a device, an extensive theoretical study and analysis of all parameters and characteristics of the system was preceded. Initially, a reference to fuel cells is being made, describing the different types of the technology and the applications which fuel cells are incorporated. In general, fuel cell technology as an object of theoretical study and as a commodity product as well, is considered to be of high scientific interest, due to its high efficiency and it’s environmental friendly operation. In addition, a general definition of numerical control is being given relatively to its applications, providing a special interest in the mechanical design of systems that incorporate this particular method of control. A significant part of the project was consumed by the analysis of stepper motor behavior, both static and dynamic. Different types of stepper motors are being described along with several types of control schemes. Extensive description of the system’s incorporated micro-controller has been made, from its general description down to its specialized role to the system. Finally, the basic principles of operation are being described, given a special interest in to the board of control and drive of the system. The evaluation of the project’s status as well it’s future development were given as final conclusions.

Introduction. Rheumatoid arthritis is a disease that causes the dislocation of joints. Foot deformity and deformity of foot fingers is brought about by inflammatory processes in the joints and due to the changed pressure of body weight on the feet. The computerized method of foot-barography allows one to estimate in what way the pressure of body weight on the feet distributes itself during the process of walking and in the standing posture. This method also allows one to judge about foot deformity as well as the condition of foot joints, ligaments and muscles of the patient. The aim of the research was to study the efficiency of applying the computerized method of foot-barography in the treatment of foot joints damaged by rheumatoid arthritis. Subjects and Methods. The research was carried out at the Polyclinic of the Joint-Stock Company „Ortopedijos technika“ (Orthopedic Technology) in Kaunas. The subjects were 19 females and 3 males suffering from chronic rheumatoid arthritis. The patients were divided into 2 groups: 1) the experimental group, i.e. patients to whom kinesitherapy was applied, and 2) the control group, i.e. patients to whom kinesitherapy was not applied. The feet of the patients have been studied applying the computerized method of foot-barography. The distribution of the pressure of body weight on definite points (5, 7, 10, 13, 17, 18, 19, 20) of the foot as well as on the fingers and hell of the foot has been analysed. Conclusions. As a result of the... [to full text]

Magistro baigiamajame darbe išnagrinėta tema „Elgesio kodeksai: jų vieta ir reikšmė reglamentuojant neteisėtos ir žalingos informacijos platinimą kompiuteriniuose tinkluose“. Elgesio kodeksais reglamentuojančiais neteisėtos ir žalingos informacijos platinimą kompiuteriniuose tinkluose Lietuvoje susidomėta palyginti neseniai, tačiau didesnę plataus interneto naudojimo patirtį turinčiose šalyse ji yra nenauja ir kelianti nemažai diskusijų. Dauguma valstybių vienu ar kitu būdu reguliuoja internete skelbiamą turinį: arba per bendruosius viešosios informacijos publikavimą reglamentuojančius teisės aktus arba per specialiai kompiuteriniams tinklams skirtus savireguliacinius elgesio kodeksus. Lietuvos Respublikoje, skirtingai nuo Europos Sąjungoje egzistuojančio teisinio reguliavimo, žalingos ir neteisėtos informacijos platinimas kompiuteriniuose tinkluose yra pernelyg griežtai reguliuojamas, paliekant labai siaurą terpę savireguliacijai. / The master's degree thesis contains the analysis of conduct codes: their place and meaning in regulation of illegal and harmful information disseminating in computerized networks. In Lithuania Republic, the problem of self-regulation of conduct codes and their place and meaning in regulation of illegal and harmful information disseminating in computerized networks became of interest comparatively not long ago, but in the countries more experienced in wide Internet usage this problem is nor new and raises quite many discussions. Most countries regulate the contents of information published in computerized networks in one or another way: by means of common regulatory provisions governing public information release or by means of specifically computerized networks-tailored conduct codes. In Lithuania Republic, contrary to legal regulations existing in the European Union, release of illegal and harmful information to computerized networks is regulated so strictly with a little space left for self-regulation by conduct codes.

A reconstruction algorithm in computerized tomography is a procedure for reconstructing the attenuation coefficientscient, a real-valued function associated with the object of interest, from the measured projection data. Generally speaking, reconstruction algorithms in CT fall into two categories: direct, e.g., filtered back-projection (FBP), or iterative. In this thesis, we discuss a new fast matrix-free iterative reconstruction method based on a polyenergetic model. While most modern x-ray CT scanners rely on the well-known filtered back-projection algorithm, the corresponding reconstructions can be corrupted by beam hardening artifacts. These artifacts arise from the unrealistic physical assumption of monoenergetic x-ray beams. In this thesis, to compensate, we use an alternative model that accounts for differential absorption of polyenergetic x-ray photons and discretize it directly. We do not assume any prior knowledge about the physical properties of the scanned object. We study and implement different solvers and nonlinear unconstrained optimization methods, such as a Newton-like method and an extension of the Levenberg-Marquardt-Fletcher algorithm. We explain how we can use the structure of the Radon matrix and the properties of FBP to make our method matrix-free and fast. Finally, we discuss how we regularize our problem by applying different regularization methods, such as Tikhonov and regularization in the 1-norm. We present numerical reconstructions based on the associated nonlinear discrete formulation incorporating various iterative optimization methods.

The purpose of the research is to create enterprise model design method and enterprise model based method of functional user requirements acquisition, analysis and specification.

Today Lithuania have a real need in having automatic translation system, which can simplificate a process of translation English language to Lithuanian language. But how we can realize this. First of all we must have a text semantic transformation system. It is a main purpose of this work – to create text semantic transformation system. Semantic transformation – process, which can help us in simplificating a sentence structure, but also to save a connections between different parts of sentence and the main means of sentence is not disappear. In my project I selected several trends(realized as functions) how we can transform a text. For example it can be a shorten sentence length or remove from sentence modal verbs, because in described rules this type of verb not need. And Iwill try to realized this my project.

Tradiciniu požiūriu mokymasis yra besimokančiojo veikla, mokytojo vykdomos mokymo veiklos išvestinė. Šiuolaikiniu požiūriu mokymasis (kitaip vadinamas – naujas mokymasis) yra besimokančiojo savivaldi (angl. self-directed) mokymosi veikla, besitęsianti visą gyvenimą, kuriai svarbi palanki sociokultūrinė ir edukacinė aplinka. Kaip ši sistema turi funkcionuoti, kad nuo mokymo tikslo „įsiminti, kiek įmanoma“ būtų pereita prie „žinoti, ką reikia žinoti, kur reikia surasti reikalingą informaciją“ ir kaip „sandėliuoti“ savo žinias? Kaip pertvarkyti įvairiais kanalais gaunamą informaciją į asmenines žinias? Tokie ir panašūs klausimai iškyla šių dienų mokytojams, mokslininkams ir praktikams. Vystantis mokslui bei technologijoms, statybos sudėtingėja, sudėtingėja ir statybos procesai, kurie be žmonių pagalbos nelabai įsivaizduojami. Kuo sudėtingesnė statyba, tuo prisidedančio žmogaus prie šios statybos atsakomybė yra didesnė. Kadangi daugumą darbų, bei jų kontrolę atlieka žmogus, tad jam reikia žinoti visus technologinius procesus, bei išmanyti jų atlikimo galimybes, eigą ir sugalvoti kaip mažiausiais kaštais bei mažiausia darbo jėga jį atlikti. Norint statybos darbu atlikti technologiškai, kokybiškai bei greitai, reikia kad žmonės dirbantys statybos procese gerai išmanytų atliekamą darbą, turėtų daug žinių, būtų kvalifikuoti. Šiuo metu tai yra didelė problema, statybos sektoriui trūksta gerų, kvalifikuotų, gerai darbą atliekančių darbuotojų. Galima būtų greitai rasti ir priimti kitų... [toliau žr. visą tekstą] / Create of education for construction workers training needs a lot of knowledge about construction and IT. Usually in the construction companies, they are not using training for workers or giving information in the paper and later workers solve the tests. The main problem is that it takes a lot of time and also more money. And also it is not practice training, it is quiet difficult prepared tasks and tests, because it is not possible to check automatically. I have been made survey in construction site about computerized system necessity, and according answers it looks like computerized system for construction needed. The main issue that education will not take so much time prepared all information, tests, rating of test and also will be cheaper and more comfortable. The computerized system will be prepared for slides with audio voice, large amount of theoretical knowledge, tasks and tests. Teaching aid is prepared using special software technologies: Microsoft Front Page 2003 – to keep connection with user; JavaScript – object oriented scripting programming language; PHP - widely interpreted as a dynamic programming language; Google chart tool - The Google Visualization API allows you to create charts and reporting applications over structured data The teaching aid construction workers can use in the lesson and independently. Short, well sorted theoretical material, tasks for self control and tests give a big amount of information to students and to teachers either. Also you... [to full text]