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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Dual task paradigms: increased demand of task performance affects stability in functional activity and performance of visual- spatial task in normal healthy adults

Yaduvanshi, Chandrashekhar 26 September 2012 (has links)
The purposes of the study was to evaluate an effect of increasing balance task demands and visual tracking task demands, on stability and visual tracking performances, with possibility of any interaction among them. Twenty healthy participants were asked to perform various visual tracking tasks, with different attentional demands, while standing on various support surfaces. Two-way analysis of variance (ANOVA) with repeated measure design was performed to estimate significant effect. Support surface properties showed significant effects on stability measures but no significant effect on visual tracking performances were noticed. Significant effect of increasing visual tracking task demands on visual tracking performances were found. However, increasing visual tracking task demand did not show any significant effect on stability measures. Significant interaction effect was also found between surface properties and visual tracking task demands for stability measures. In conclusion, increasing balance demands effect stability and increasing visual tracking demands effect visual tracking performances.
2

Dual task paradigms: increased demand of task performance affects stability in functional activity and performance of visual- spatial task in normal healthy adults

Yaduvanshi, Chandrashekhar 26 September 2012 (has links)
The purposes of the study was to evaluate an effect of increasing balance task demands and visual tracking task demands, on stability and visual tracking performances, with possibility of any interaction among them. Twenty healthy participants were asked to perform various visual tracking tasks, with different attentional demands, while standing on various support surfaces. Two-way analysis of variance (ANOVA) with repeated measure design was performed to estimate significant effect. Support surface properties showed significant effects on stability measures but no significant effect on visual tracking performances were noticed. Significant effect of increasing visual tracking task demands on visual tracking performances were found. However, increasing visual tracking task demand did not show any significant effect on stability measures. Significant interaction effect was also found between surface properties and visual tracking task demands for stability measures. In conclusion, increasing balance demands effect stability and increasing visual tracking demands effect visual tracking performances.
3

Audimo technologijos informacinė sistema / Weave technology information system

Švedaitė, Lina 11 August 2008 (has links)
Temos aktualumas. Inovacijos audinių projektavime yra aktualios tiek privačioms, tiek ir valstybinėms įmonėms, kadangi jos visos kasdieninėje veikloje susiduria su naujų technologijų ir medžiagų taikymo galimybių įvairove, finansavimo šaltinių trūkumu, profesionalių audimo specialistų parengimo ir jų adaptavimosi įmonėse problemomis. Audinių gamybos procesas orientuojamas į naujas technologijas, gamybinių ir vadybinių galimybių paiešką ir jų panaudojimą. Tai reiškia, kad siekiant patenkinti vartotojo poreikius nebūtinai reikia kurti kažką radikaliai naujo; pritaikymą naujiems pasiūlymams galima rasti kasdieninėje audimo įmonių veikloje ir naujame požiūryje į specialistų paruošimą, jų kvalifikacijos kėlimą. Temos aktualumas siejamas su audimo technologinių veiklos procesų modernizavimu, kuris turi padėti kompiuterizuoti kasdieninius audimo technologo darbus, suteikiant galimybę juos atlikti efektyviau, kokybiškiau ir sparčiau bei patenkinti esamus poreikius. Tiriama problema – kaip galima būtų palengvinti audimo technologo darbą kompiuterizuojant audimo technologinius skaičiavimus, pateikiant išsamią ir aiškią informaciją klientams bei darbuotojams apie atliktas paslaugas. Ši problema optimaliausiai išsprendžiama sukuriant naują informacinę sistemą, kuri atitinka keliamus reikalavimus bei patenkina informacinius poreikius. Darbo objektas – audimo fabriko veikla. Siekiant užsibrėžto tikslo, yra sprendžiami tokie uždaviniai: - Išanalizuoti audimo fabriko veiklą, aplinką ir... [toliau žr. visą tekstą] / The aim of the work – to project and implement weaving technology enterprise service information system. The main tasks are to analyze the activities, environment and structure of the weaving technology enterprise, to perform the analysis of internal and external information streams of the enterprise, to form the requirements for the new system and its functions after evaluating the defects of the current system, to compare the created IS with the already existing software packs, to project and establish weaving technology enterprise service information system, to test its operation using real data and to provide the instructions for a user of the system. The methods used in the work are the following: general identification method, comparison, deduction, designing, analysis of alternatives, analysis of documents, synthesis, generalization, conversation methods, observation. Obtained results: a new weaving technology enterprise service system was created. It computerizes technologist‘s work, helps to perform it faster and easier, provides clear and structured information in accordance with the requirements. After analyzing of the activities, functions, environment of the enterprise, the structure of the organization, and after analyzing of the processes that require IS and of the current features that do not meet the requirements of the user, a new information system was designed using the MS Visio 2000 pack. MS Access was chosen for the implementation of the system. The... [to full text]
4

The Visio Baronti in its early medieval context

Lucey-Roper, Michelle M. January 2000 (has links)
The focus of this thesis is the Visio Baronti (VB), an account of a seventh-century monk's journey to the other world. This text serves as a metaphoric fulcrum to support a more extensive study of early medieval conceptions of the other world and the historical context in which visionary accounts were produced. Chapter 1 contains an introduction to ideas of the other world, a survey of types of visionary experiences, their uses, imitations and historiographical responses to them. Chapter 2 focuses on medieval and modern responses to visions. This chapter includes a survey of the terminology for dreams and visions found in theoretical writings, compares dream theory with otherworld visions and identifies medieval methods of determining the validity of a visionary experience. Chapter 3 investigates the manuscript tradition of the VB, in order to illuminate medieval receptions and treatments of this text. Because the text appears unusual for the seventh century, chapter 4 provides an analysis of the grounds for dating the VB to the seventh century, while chapter 5 treats the VB in its seventh-century monastic context and assesses what influences shaped this text. Chapter 6 compares Barontus's vision with ninth-century visions and other Carolingian writings to consider Carolingian interest in the VB in light of their contributions to the genre. Chapter 7 examines the artistic response to this text through an examination of the illustrations which accompany the text in the ninth-century St Petersburg manuscript. A brief conclusion to this study follows.
5

Procesní řízení v mezinárodní IT společnosti / Process Management in the International IT Company

Machalová, Sandra January 2008 (has links)
An incentive for origin of this diploma work was an effort to bring a solution for a troubleshooting area in an international IT company ́s process management where the author was working for more than one and half year and which subsidiary is based in the Czech Republic. The goal of the work is not even to bring a solution in a form of redesign below spcificated process area with suggestion for implementation, but also to bring the reader overview on one possible way how to design and model processes implemented by a certain company. The private objective of the author is to enlarge her own experience with analysis and process modelling portfolio. Goals were achieved by study of a lot of internal resources in a form of documents, documentation and also by study of a scientific literature and scientific topics published in Internet. Moreover there was needed to realize several interviews with employees, analyze all founded information and suggest a solution with regards to given conditions and restrictions. A contribution of this work is in a transparent elaboration of a given reengineering ́s problems, starting with methodics designed for reengineering, through tools used for modelling to solution of a practical task. This work also reveals a process management approach one of the top IT company effecting the international markets, also with description of methods and tools used to it ́s support.
6

Verkstadslayout – digital visualisering av fabrikslayout / Workshop layout – digital visualization of factory layout

Vallin, Daniel, Ramos, Roberto January 2019 (has links)
Examensarbetet är utfört i samarbete med ett företag. Målen är att ta fram en användarvänlig digital modell av verkstaden, arbeta fram tre förbättringsförslag på layouter med omplaceringar av utrustning och maskiner. Förbättringar skall föreslås inom hållbarhetsaspektern aekonomi, social och miljö. För att nå målet att skapa en digital verkstadslayout har projektgruppen mätt upp hela fabriken med hjälp av laseravståndsmätare, då exakta ritningar saknades. Vid besök i fabriken kunde all nödvändig information mätas upp för skapandet av den digitala fabriksmodellen. Besöken vid fabriken har gett inspiration till nya layoutförslag och förbättringar. Observationer och intervjuer med personal har gjorts. Produktionsflöden och processer för de största produktgrupperna har kartlagts. Litteratur som berör produktionsteknik, arbetsmiljö och andra relevanta områden har studerats. Projektgruppen har utfört ljusmätning i fabriken. Belysningen var tillfredställande. Förslag på bullerdämpande åtgärder har framarbetats. Den digitala fabriksmodellen har skapats i programmet Microsoft Visio efter urval mot kravspecifikation från företaget samt KTHs programvaruutbud. De tre layoutförslag som tagits fram har värderats och ställts mot varandra i ett värderingsschema för att kunna bestämma ett slutgiltigt förslag till ny verkstadslayout. Layoutförslag 2 fick högst poäng i utvärderingen där lägre kostnader, förbättrat flöde samt förbättrad tillgång för truck var de bidragande faktorerna. Förslaget innebär kort att centerlesslipmaskinerna flyttas till den yta som renoverats, en svarv flyttas för att ge plats åt truckar, stationen för kvalitetskontroll flyttas och mer plats frigörs för lastpallar. / This thesis is done in collaboration with a company. The goals are to develop a userfriendly digital model of the workshop, to suggest three improved layout proposals with repositioning of equipment and machines. Improvements should also be proposed in the sustainability aspects of economy, social and environmental. To achieve the goal of creating a digital workshop layout, the project team measured the entire factory with the aid of laser rangefinders, because exact drawings were missing. When visiting the factory, all the necessary information could be measured for the creation of the digital factory model. The visits to the factory have provided inspiration for new layout suggestions and improvements. Observations and interviews with staff have been made. Production flows and processes for the largest product groups have been mapped. Literature relating to production technology, work environment and other relevant areas has been studied. The project group has carried out light measurement in the factory. The lighting was satisfactory. Noise reduction measures have been proposed. The digital factory model has been created in the Microsoft Visio software after evaluation based on company specification and KTH's software. The three layout proposals that have been developed have been evaluated and compared to each other in an evaluationscheme to determine a final proposal for a new workshop layout. Layout proposal 2 received the highest score in the evaluation, where lower costs, improved flow and improved access for forklifts were the contributing factors. In short the proposal suggest that the centerless grinders are moved to the area that has been renovated, a lathe is moved to accommodate forklifts, the quality control station is movedand more space is freed up for pallets.
7

Design och implementation av konfigurationsverktyg för funktionsblock / Design and implementation of a Function Block configuration tool

Hadiani, Saman January 2004 (has links)
<p>Abstract In high voltage substations there is an increasing demand for computerized equipment, and automation of operation and supervision. The future primary equipment will provide the possibility to collect more information and to provide better control for improved effectiveness. </p><p>Since ABB has got a large customer target, each product must be custom made to fulfil the customers (often from different countries) demands. Later these products will be configured by engineers who may not be familiar with the tools used at ABB. This is a very expensive and time consuming. To solve the problem, ABB was looking for a low cost, easy managed and more advanced replacement. </p><p>This report includes an investigation for a function block configuration tool based on Microsoft Visio. The tool is connected to a general database using ODBC for the latest ABB Substation Automation SW platform for protection in power transmission equipment. </p><p>The thesis report mainly contains a description of the functions and features that are requested. Then methods used to build the prototype is explained and at the end the result is presented. </p><p>At the same time the possibilities and problems that will arise from using ODBC based interface for control and monitoring of real-time systems were investigated.</p>
8

Kodgenereringsmöjligheter i VISIO 2000 Enterprise

Seifzadeh, Shahin January 2000 (has links)
<p>Alltid har mjukvaruföretagen varit intresserade av att bedriva applikationsutvecklingen så effektiv och lönsam som möjligt. För detta avseende använder många utav dem olika CASE-verktyg. Ett sådant CASE-verktyg är VISIO 2000 Enterprise. CASE-verktyg kan t ex användas för att genomföra transformeringar mellan modeller och koder. Denna möjlighet underlättar applikationsutvecklingen, men tyvär kan sådana transformeringar medföra eventuella förluster av data och leda till att eventuella semantiska förluster uppstår. Dessa förluster kan innebära att den representerade informationen i modeller och koder inte är det samma efter en transformation. Därför är det intressant att undersöka hur bra ett CASE-verktyg klarar av detta innan det kan avändas som stöd vid applikationsutveckling. I denna rapport undersöks genereringsmöjligheterna i CASE-verktyget VISIO 2000 Enterprise samt de eventuella semantiska förluster som kan uppstå vid transformationer mellan modeller och koder via CASE-verktyget. Olika tester innehållande transformationer mellan modeller och koder som representerar grundläggande relationer mellan olika klasser har genomförts för att undersöka förluster av relationer mellan klasser samt förluster av relationsnamn, medlemsfunktioner och medlemsvariabler i klasserna och koden. Utifrån testresultaten kan slutsats dras att VISIO kan vara bra använda vid applikationsutveckling när det gäller transformationer av modell till kod men inte tvärtom.</p>
9

Διερεύνηση τεχνικών παραμέτρων για δυνατότητες μετάδοσης βίντεο στο πλαίσιο της υποστήριξης υψηλής ποιότητας παρεχόμενων υπηρεσιών στα σύγχρονα ασύρματα δίκτυα

Σαρακινιώτη, Βικτωρία 19 July 2012 (has links)
Η παρούσα διπλωματική εργασία εκπονήθηκε στο Εργαστήριο Ασύρματης Τηλεπικοινωνίας του τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών. Ο στόχος της εργασίας αυτής ήταν η μελέτη της μετάδοσης κωδικοποιημένου βίντεο H.264/AVC στο δίκτυο WiMAX με βάση τη χρήση τριών σχημάτων διαμόρφωσης φυσικού επιπέδου του σήματος βίντεο. Λαμβάνοντας υπόψιν την τεράστια εξέλιξη των ασύρματων δικτύων, αλλά και των συσκευών που μπορούν να υποστηρίξουν πολυμεσικές εφαρμογές, καθιστούν τελικά τη μετάδοση βίντεο μια από τις σημαντικότερες προκλήσεις και ένα δημοφιλή ερευνητικό προσανατολισμό. Σημαντικό ρόλο στη μετάδοση του βίντεο διαδραματίζουν οι παράμετροι που διασφαλίζουν την Ποιότητα των Παρεχόμενων Υπηρεσιών, όπως το εύρος ζώνης, η καθυστέρηση, η διακύμανση της καθυστέρησης και φυσικά η απώλεια πακέτων. Ωστόσο, σε ένα δίκτυο υπάρχουν ποικίλλες παράμετροι που πρέπει να λαμβάνονται υπόψιν κατά τη μετάδοση πολυμεσικής πληροφορίας και στην παρούσα εργασία έγινε μια προσπάθεια να εξεταστεί το θέμα υπό το πρίσμα της διαμόρφωσης φυσικού επιπέδου. Το εργαλείο που χρησιμοποιήθηκε για τη μελέτη αυτή, είναι ο εξομοιωτής δικτύων NS-2, η έκδοση ns-2.29. Για την εξαγωγή των γραφικών παραστάσεων χρησιμοποιήθηκε το Matlab R2009b, ενώ για την εξαγωγή των σχημάτων το Microsoft Office Visio 2010. / This diploma thesis was developed at the Laboratory of Wireless Communications, at the Department of Electrical and Computer Engineering. The objective of this work was to study the transmission of the encoded video H.264/AVC through its transmission over WiMAX network based on the use of three physical layer modulation schemes of the video signal. Considering the tremendous evolution of wireless networks and the fact that modern devices can support multimedia applications, it cannot be denied that video broadcasting is of major importance and constitutes a great challenge for the engineers for further research. Parameters that ensure quality of service, such as bandwidth, delay, delay variation and of course packet loss, play dominant role in the optimization of video transmission. However, in a network, there are various parameters that should be taken into consideration when transmitting multimedia data. The tool used for this study is the network simulator NS-2, the version ns-2.29. In order to export the graphics the software that was used is Matlab R2009b, while the Microsoft Office Visio 2010 software was used to export the figures.
10

Design och implementation av konfigurationsverktyg för funktionsblock / Design and implementation of a Function Block configuration tool

Hadiani, Saman January 2004 (has links)
Abstract In high voltage substations there is an increasing demand for computerized equipment, and automation of operation and supervision. The future primary equipment will provide the possibility to collect more information and to provide better control for improved effectiveness. Since ABB has got a large customer target, each product must be custom made to fulfil the customers (often from different countries) demands. Later these products will be configured by engineers who may not be familiar with the tools used at ABB. This is a very expensive and time consuming. To solve the problem, ABB was looking for a low cost, easy managed and more advanced replacement. This report includes an investigation for a function block configuration tool based on Microsoft Visio. The tool is connected to a general database using ODBC for the latest ABB Substation Automation SW platform for protection in power transmission equipment. The thesis report mainly contains a description of the functions and features that are requested. Then methods used to build the prototype is explained and at the end the result is presented. At the same time the possibilities and problems that will arise from using ODBC based interface for control and monitoring of real-time systems were investigated.

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