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1

Xu, Xin. "Digital watermark technology in security applications." Thesis, University of Plymouth, 2008. http://hdl.handle.net/10026.1/335.

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With the rising emphasis on security and the number of fraud related crimes around the world, authorities are looking for new technologies to tighten security of identity. Among many modern electronic technologies, digital watermarking has unique advantages to enhance the document authenticity. At the current status of the development, digital watermarking technologies are not as matured as other competing technologies to support identity authentication systems. This work presents improvements in performance of two classes of digital watermarking techniques and investigates the issue of watermark synchronisation. Optimal performance can be obtained if the spreading sequences are designed to be orthogonal to the cover vector. In this thesis, two classes of orthogonalisation methods that generate binary sequences quasi-orthogonal to the cover vector are presented. One method, namely "Sorting and Cancelling" generates sequences that have a high level of orthogonality to the cover vector. The Hadamard Matrix based orthogonalisation method, namely "Hadamard Matrix Search" is able to realise overlapped embedding, thus the watermarking capacity and image fidelity can be improved compared to using short watermark sequences. The results are compared with traditional pseudo-randomly generated binary sequences. The advantages of both classes of orthogonalisation inethods are significant. Another watermarking method that is introduced in the thesis is based on writing-on-dirty-paper theory. The method is presented with biorthogonal codes that have the best robustness. The advantage and trade-offs of using biorthogonal codes with this watermark coding methods are analysed comprehensively. The comparisons between orthogonal and non-orthogonal codes that are used in this watermarking method are also made. It is found that fidelity and robustness are contradictory and it is not possible to optimise them simultaneously. Comparisons are also made between all proposed methods. The comparisons are focused on three major performance criteria, fidelity, capacity and robustness. aom two different viewpoints, conclusions are not the same. For fidelity-centric viewpoint, the dirty-paper coding methods using biorthogonal codes has very strong advantage to preserve image fidelity and the advantage of capacity performance is also significant. However, from the power ratio point of view, the orthogonalisation methods demonstrate significant advantage on capacity and robustness. The conclusions are contradictory but together, they summarise the performance generated by different design considerations. The synchronisation of watermark is firstly provided by high contrast frames around the watermarked image. The edge detection filters are used to detect the high contrast borders of the captured image. By scanning the pixels from the border to the centre, the locations of detected edges are stored. The optimal linear regression algorithm is used to estimate the watermarked image frames. Estimation of the regression function provides rotation angle as the slope of the rotated frames. The scaling is corrected by re-sampling the upright image to the original size. A theoretically studied method that is able to synchronise captured image to sub-pixel level accuracy is also presented. By using invariant transforms and the "symmetric phase only matched filter" the captured image can be corrected accurately to original geometric size. The method uses repeating watermarks to form an array in the spatial domain of the watermarked image and the the array that the locations of its elements can reveal information of rotation, translation and scaling with two filtering processes.
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Munro, Tommy. "The study of stray magnetic fields from digital recording heads for tape applications." Thesis, University of Glasgow, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.395108.

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Faiq, T. "Analogue to digital converter design in CMOS technology for low power applications." Thesis, University College London (University of London), 2013. http://discovery.ucl.ac.uk/1395124/.

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Miniaturization of integrated circuits (IC) has allowed very large scale integration (VLSI) of circuits. This has allowed personal communication devices to perform higher levels of data acquisition with faster speed. Due to robustness of digital systems most of the processing in ICs are digital. Therefore, the technology has been optimized for digital circuits. Still a small but very important part of these systems are analogue and it is very difficult to justify the modification of technology for analogue circuits. One of the most important analogue systems in these ICs are analogue to digital converters (ADC) which are implemented by switched capacitor (S/C) circuits. Fundamentally, the power consumption of S/C circuits increase as the power supply is reduced. Thus, reduced supply voltage tends to increase analogue circuit complexity and power consumption. This work focuses on development of digital calibration technique that allows the use of imprecise analogue circuits in order to reduce power consumption. The followings are achieved in the course of this research. An alternative background digital calibration technique that is based on deterministic error measurement. The technique can correct for capacitor mismatch and gain error due to insufficient op-amp DC gain. A system level simulation of the ADC have shown 15 dB signal-to-noise-plus-distortion-ratio (SNDR) and 31 dB spurious-free-dynamic-range (SFDR) improvement over a non-calibrated 12-bit ADC at 20 Ms/s. It also achieved an improvement of 4 LSB in INL and 0.6 LSB in DNL, respectively. A 12-bit 20 Ms/s 3.3 V pipeline ADC with the background digital calibration in 0.35 μm CMOS technology was designed and fabricated. However, primarily due to layout issues and to some extent due to equipment limitations the measured results showed only marginal improvement. A 10-bit 500 ks/s 5 V fully differential successive approximation ADC with a variable input range between 2-5 V in 0.35 μm CMOS technology with 1.5 mW power consumption designed and fabricated. This ADC can be used in moderate performance applications (resolution and speed), such as bio- impedance measurement.
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Sciaky, Davide. "The digital transformation of the music industry through applications of blockchain technology." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-264916.

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Since its introduction in 2008, the blockchain technology has been hailed as the one that could revolutionise many different industries. The music industry underwent several changes in the last 20 years as a consequence of phenomena such as music piracy, digital music and music streaming. Many considered the blockchain technology the solution to the many issues the music industry is facing. However, while the technology has been around for more than 10 years, and despite the enthusiasm of scholars and experts, little has been done to actually implement blockchains in the industry, especially by its biggest players. The resulting question is if and how the technology could change the music industry. This research starts by looking into previous studies on the blockchain technology, on the music industry and on the possible intersections of the two: from there the most popular suggested applications of the blockchain technology are extracted and presented in interviews to people working in the music industry. The goal of the interviews is to understand if the issues that the suggestions aimed to solve are real, and if the suggested applications are thought to be actually useful. The results are also compared with considerations from previously analysed papers, and showed a general interest in the blockchain technology and in the belief that it could help solve some issues of the music industry. At the same time, it was found that the technology is considered too young to be employed at the present time, with most people reckoning it is a technology that could have an impact in 10-15 year time.<br>Sedan år 2008 har man trott att Blockchain teknologin skulle kunna revolutionera många olika industrier. Exempelvis trodde man att blockchain kunde vara lösningen på många problem som musikindustrin hade. Musikindustrin har gått igenom många olika förändringar under de senaste 20 åren som en konsekvens av piratverksamhet inom musikvärden och musik streaming. Även om denna teknologi funnits i över 10 år och varit mycket uppskattad av forskare och experter, så har det inte skett så många insatser för att försöka introducera blockchain i industrin, speciellt från de stora aktörerna. Frågan är om och hur teknologin kan förändra musikindustrin. Denna forskning analyserar tidigare studier i blockchain och i musikindustri, och om det kan finnas en koppling mellan dem. De mest kända tillämpningarna av blockchain kommer att presenteras, tillsammans med intervjuer med personer som jobbar i musikindustrin. Målet med intervjuerna är att förstå om problemen som teknologin vill lösa verkligen existerar, och om dem föreslagna lösningarna verkligen kan hjälpa. Resultaten jämförts också med tidigare studier som visar intresse för blockchain teknologin och tror på att den ska hjälpa. Ibland visade det sig att denna teknologi tros vara för ung för att bli applicerad i nutid, och majoriteten tror att den kommer ha en större betydelse om 10/15 år.
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5

Manandhar, Sanjeev. "High Speed ROM for Direct Digital Synthesizer Applications in Indium Phosphide DHBT Technology." Fogler Library, University of Maine, 2006. http://www.library.umaine.edu/theses/pdf/ManandharSX2006.pdf.

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6

Mahyari, Parisa. "Luxury brand identity : the influence of mobile digital technology." Thesis, Queensland University of Technology, 2014.

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This thesis examined the influence of mobile digital technology on the brand identity of luxury brands. Specifically it focused on the use of mobile applications by automobile, hotel and beauty brands and compared the perceptions of marketing managers with consumers on how mobile applications influenced luxury brand identity and image. Outcomes of this research included a model to depict the ongoing process between mobile-mediated luxury brand identity and image, and a typology of luxury brand mobile applications listing key features of mobile-mediated luxemosphere. Overall findings suggest that the influence of mobile applications on luxury brand identity has been negative, as their brand image appeared to be degraded, resulting in diminishing the brand identity.
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Egidos, Plaja Núria. "On the digital design and verification of pixel detector ASICs for fast timing applications and other fields of science." Doctoral thesis, Universitat de Barcelona, 2021. http://hdl.handle.net/10803/671794.

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La contribución principal de esta tesis consiste en el diseño, implementación y verificación, mediante el uso de herramientas digitales, de una red de distribución de reloj para FastICpix, un detector píxel híbrido capaz de procesar fotones individualmente. Esta red distribuye una referencia temporal de baja frecuencia (decenas de MHz) a la matriz de píxeles, un reloj para el mecanismo de etiquetado temporal de la llegada de fotones. FastICpix se adapta en área y tamaño de píxel para optimizar la captura de carga eléctrica según la aplicación, y proporciona una fina resolución temporal (10 psRMS) en la detección de fotones individuales. Para cumplir estos requisitos, la red se puede escalar en área y adaptar al tamaño del píxel; y proporciona un fino ajuste de fase (resolución de 20 ps) en la distribución del reloj. Aunque el diseño que se propone no ha sido fabricado en silicio por el momento, se presentan simulaciones digitales anotadas con los retrasos de propagación asociados a las capacidades y resistencias parásitas presentes en el circuito, que ha sido implementado en el nodo de 65nm. La arquitectura seleccionada cumple con los requisitos de resolución temporal y el consumo de potencia estimado de la red no es la contribución dominante en el consumo total del chip. Se proporciona pautas para escalar este diseño al resto de geometrías contempladas en el proyecto FastICpix. Por otro lado, también se ha implementado una estructura de verificación, basada en la Metodología Universal de Verificación, para CLICTD, un sensor monolítico segmentado y chip de lectura destinado al experimento Colisionador Linear Compacto. Este chip ha sido fabricado en un proceso de imagen CMOS de 180nm modificado. La aplicación de esta verificación exhaustiva y automatizada permitió corregir pequeños errores de diseño, lo cual contribuyó a la exitosa operación del chip una vez fabricado.<br>La contribució principal consisteix en el disseny, implementació i verificació, mitjançant l’ús d’eines digitals, d’una xarxa de distribució de rellotge per a FastICpix, un detector píxel híbrid que processa fotons individualment. Aquesta xarxa distribueix una referència temporal de baixa freqüència (desenes de MHz) a la matriu de píxels, un rellotge que s’empra al mecanisme d’etiquetatge temporal de l’arribada de fotons. FastICpix s’adapta en àrea i mida del píxel per optimitzar la captura de càrrega elèctrica segons l’aplicació, i proporciona una fina resolució temporal (10 psRMS) en la detecció de fotons individuals. Per tal de complir aquests requisits, la xarxa es pot escalar en àrea i adaptar a la mida del píxel; i proporciona un ajustament fi de la fase (resolució de 20 ps) en la distribució del rellotge. Tot i que el disseny que es proposa no ha sigut fabricat en silici encara, es presenten simulacions digitals anotades amb els temps de propagació associats a les capacitats i resistències paràsites presents al circuit, que s’ha implementat al node de 65nm. L’arquitectura seleccionada compleix els requisits de resolució temporal i el consum de potència estimat de la xarxa no és la contribució dominant al total del consum del xip. Es proporciona pautes per escalar aquest disseny a la resta de geometries previstes al projecte FastICpix. D’altra banda, també s’ha implementat una estructura de verificació, basada en la Metodologia de Verificació Universal, per CLICTD, un sensor monolític segmentat i xip de lectura destinat al detector de silici de trajectòries per l’experiment Col·lisionador Linear Compacte. Aquest xip s’ha fabricat en un procés d’imatge CMOS de 180nm modificat. L’aplicació d’aquesta verificació exhaustiva i automatitzada va permetre corregir petits errors de disseny, la qual cosa va contribuir a l'exitosa operació del xip un cop fabricat.
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Turki, Badredin. "Digital fabrication of frequency selective surfaces for in-building applications using inkjet printing technology." Thesis, University of Kent, 2015. https://kar.kent.ac.uk/56652/.

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This thesis presents work on the inkjet printing manufacture of frequency selective surfaces intended for in-building applications using silver nanoparticle inks. The aim of this research is to investigate the performance of inkjet printed FSS panels in terms of transmission response, element conductivity, and the resolution of the printed lines, all of which are produced efficiently in terms of cost and resource usage. Different FSS design were investigated from simple elements such as linear dipoles, square loops and convoluted square loop elements. Various techniques were used in the manufacturing process such as different ink drop spacing, number of jetted ink layers, and different sintering methods, with the aim of achieving low cost manufacturing with a reduced amount of deposited silver inks and sintering time and temperature. Additionally, further reductions in the deposited ink were considered by the introduction of frame elements. The research also focuses on factors that could affect the transmittivity/reflectivity of the FSS screen, such as the influence of imperfections in the printed elements. The imperfections are expected in the case of low cost mass production, therefore it is important to understand to what extent they could be tolerated whilst still providing adequate performance. Finally, the work also considers developing novel slotted FSS arrays operating at low frequency bands such as the TETRA emergency band and suitable for additive manufacturing.
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Nicholas, Rebekah Taryn. "Engagement with digital health technologies." Thesis, Queensland University of Technology, 2019. https://eprints.qut.edu.au/134483/1/Rebekah_Nicholas_Thesis.pdf.

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The increased implementation of digital health technologies requires a better understanding of how to design technologies and services that enhance people's engagement with their health. This thesis contributes new knowledge about i) an increased understanding of the different ways in which people engage with digital health technologies, ii) the stages of people's engagement with digital health technologies over time, and iii) the features that support such engagement. The findings offer new directions for the digital health industry to further develop their service design. They also support people's engagement with their health goals through tailoring their services more effectively to end-users.
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Jordan, Gyözö. "Terrain Modelling with GIS for Tectonic Geomorphology : Numerical Methods and Applications." Doctoral thesis, Uppsala universitet, Miljö- och landskapsdynamik, 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4635.

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Analysis of digital elevation models (DEMs) by means of geomorphometry provides means of recognising fractures and characterising the morphotectonics of an area in a quantitative way. The objective of the thesis is to develop numerical methods and a consistent GIS methodology for tectonic geomorphology and apply it to test sites. Based on the study of landforms related to faults, geomorphological characteristics are translated into mathematical and numerical algorithms. The methodology is based on general geomorphometry. In this study, the basic geometric attributes (elevation, slope, aspect and curvatures) are complemented with the automatic extraction of ridge and valley lines and surface specific points. Evan’s univariate and bivariate methodology of general geomorphometry is extended with texture (spatial) analysis methods such as trend, autocorrelation, spectral, wavelet and network analysis. Digital terrain modelling is carried out by means of (1) general geomorphometry, (2) digital drainage network analysis, (3) digital image processing, (4) lineament extraction and analysis, (5) spatial and statistical analysis and (6) DEM specific digital methods such as shaded relief models, digital cross-sections and 3D surface modelling. Geological data of various sources and scales are integrated in a GIS database. Interpretation of multi-source information confirmed the findings of digital morphotectonic investigation. A simple shear model with principal displacement zone in the NE-SW direction can explain most of the morphotectonic features associated with structures identified by geological and digital morphotectonic investigations in the Kali Basin. Comparison of the results of the DTA with the known geology from NW Greece indicated that the major faults correspond to clear lineaments. Thus, DTA of an area in the proposed way forms a useful tool to identify major and minor structures covering large areas. In this thesis, numerical methods for drainage network extraction and aspect analysis have been developed and applied to tectonic geomorphology.
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Carter, Noah. "Building Data Visualization Applications to Facilitate Vehicular Networking Research." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/honors/459.

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A web app was developed which allows any internet-connected device to remotely monitor a roadway intersection’s state over HTTP. A mapping simulation was enhanced to allow researchers to retroactively track the location and the ad-hoc connectivity of vehicle clusters. A performance analysis was conducted on the utilized network partitioning algorithm. This work was completed under and for the utility of ETSU’s Vehicular Networking Lab. It can serve as a basis for further development in the field of wireless automobile connectivity.
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Mazaleyrat, Eric. "Contribution à la modélisation des transistors MOS silicium sur isolant : application aux transistors silicium sur saphir." Grenoble 1, 1988. http://www.theses.fr/1988GRE10032.

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Le travail est consacre a l'etude des dispositifs mos au substrat isolant. Apres une analyse des avantages et inconvenients de cette technologie par rapport a celles sur substrat massif, l'auteur etudie a l'aide de simulateurs numeriques, le comportement interne de la structure a desertion profonde. Une comparaison entre le soi de type simox et le sos est developpee. La comprehension des mecanismes physiques entrant en jeu dans les diodes controllees par grille, permet d'elaborer un modele precis de transistor mos
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Umansky, Alec. "HIGH BANDWIDTH PORTABLE TRANSMISSION SYSTEMS USE OF xDSL TECHNOLOGY IN MILITARY, INDUSTRIAL AND TELEMETRIC APPLICATIONS." International Foundation for Telemetering, 2001. http://hdl.handle.net/10150/606418.

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International Telemetering Conference Proceedings / October 22-25, 2001 / Riviera Hotel and Convention Center, Las Vegas, Nevada<br>This paper introduces new telemetry (communications) equipment based on Digital Subscriber Loop DSL technology (high speed transmission over copper cables) for defense and industrial applications. A brief xDSL technology overview is followed with introduction of the new ‘P3’ product and its application, reviewing advantages of using copper as a communications medium whenever rapidly deployed data and voice links are essential. An Australian Army report, detailing a specific equipment deployment’s findings is reproduced as an independent reference material.
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Umansky, Alec. "HIGH BANDWIDTH PORTABLE TRANSMISSION SYSTEMS USE OF xDSL TECHNOLOGY IN MILITARY AND INDUSTRIAL TELEMETRIC APPLICATIONS." International Foundation for Telemetering, 2000. http://hdl.handle.net/10150/606792.

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International Telemetering Conference Proceedings / October 23-26, 2000 / Town & Country Hotel and Conference Center, San Diego, California<br>This paper introduces new telemetry equipment based on Digital Subscriber Loop DSL technology (high speed transmission over copper cables) for military and industrial applications. A brief xDSL technology overview is followed with introduction of the new ‘P3’ product. A number of new applications for remote data transmission are presented and further highlighted in the Australian Army report detailing their recent equipment operational deployments.
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Samarah, Ashraf [Verfasser]. "A novel approach for generating digital chirp signals using FPGA technology for synthetic aperture radar applications / Ashraf Samarah." Siegen : Universitätsbibliothek der Universität Siegen, 2012. http://d-nb.info/1023156792/34.

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Kultinov, Kirill. "Software Implementations and Applications of Elliptic Curve Cryptography." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1559232475298514.

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Creech, Ronald Edwin. "The United States copyright law dilemma: a synthesis of copyright applications that affect the use of digital print-on-demand technology." Diss., Virginia Tech, 1994. http://hdl.handle.net/10919/39483.

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Bücker, Dennis. "Designing Applications for Smart Cities: A designerly approach to data analytics." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23305.

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The purpose of this thesis is to investigate the effects of a designerly approach to data analytics. The research was conducted during the Interaction Design Master program at Malmö University in 2017 and follows a research through design approach where the material driven design process in itself becomes a way to acquire new knowledge. The thesis uses big data as design material for designers to ideate connected products and services in the context of smart city applications. More specifically, it conducts a series of material studies that show the potential of this new perspective to data analytics. As a result of this research a set of designs and exercises are presented and structured into a guide. Furthermore, the results emphasize the need for this type of research and highlights data as a departure material as of special interest for HCI.
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Ehrenberg, Nils, and Simon Landstedt. "Malmöspanaren - En digital plattform för deltagande förvaltning av Malmö stads cykelvägnät." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23886.

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In this project we have explored digital tools for service management on the bicycle paths of Malmö. This was done through the participation of citizens in order to attempt to discern how such interactions can be eased using a mobile app, as well as how this app can be designed in order to appear trustworthy with user friendly interactions.We have explored this field by using goal-oriented design through interviews, prototyping and user tests. We have created a digital prototype as a possible solution for how the interactions can be done.Throughout the process interviews were held and user tests with selected members of the user group. To explore the concepts we have used paper prototypes in order to establish the design and then defining the interactions with the help of a digital prototype.Finally we have concluded that a general app for bikers in the city would be functional and that a longer study in the effects of such an app would be interesting as a continuation of this work.
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Sá, Carlos. "Desenvolvimento de indicador de convergência de tecnologias e procedimentos de saúde em prontuário digital de pacientes (ICOTECH)." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-29082016-151942/.

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Esta dissertação de mestrado apresenta o desenvolvimento de umindicador para quantificar o nível de convergência de tecnologias e procedimentos relativos ao Prontuário Digital de Pacientes (PDP) em instituições de saúde. Apresenta um estudo evolutivo do tradicional prontuário em papel e o prontuário eletrônico de pacientes, considerando as tecnologias, a integração e interoperabilidade, com as modernas tecnologias digitais e de mobilidade. A abrangência de sua utilização extrapola o simples uso na área médica e hospitalar, contribuindo com todos os procedimentos e processos para o segmento de saúde. O trabalho desenvolve um conjunto de métricas considerando componentes como o perfil da instituição de saúde, fatores influenciadores da convergência, os ambientes de saúde aplicáveis, os vários procedimentos e processos de saúde e as funcionalidades de software. Estes cinco componentes do indicador denominado de ICOTECH Indicador de Convergência de Tecnologias e Procedimentos em Prontuário Digital de Pacientes constituem-se por 205 métricas analisadas com mais de 113 variáveis. Estas combinações são quantificadas por meio de algoritmo ICOTECH, comparando-se os valores médios do último período anual, o valor atual e o padrão de mercado conhecido. O resultado representa um indicador inédito ICOTECH calculado por métrica, componente e final permitindo aos tomadores de decisão o estabelecimento de metas a serem atingidas, além de análise de desempenho de competividade em relação aos padrões de mercado.<br>This dissertation presents the development of an indicator to quantify the level of convergence of technologies and procedures for Patient Digital Health Record (PDP) in health care settings. It presents an evolutionary study of traditional paper records and electronic medical records of patients, considering the technology, integration and interoperability with modern digital technologies and mobility. This work also provides subsidies to decision makers in the optimization of investments and analysis of medical procedures compared to industry standards. Its importance for public health policies, education, improvements in social welfare, scientific research, providing information and optimizing resources is analyzed to the fullest extent of the application of PDP. The scope of its use goes beyond the simple use in the medical and hospital sector, accounting for all procedures and processes for the healthcare segment. While increases its complexity provides more feedback information and data recorded in the PDP. In this sense, the paper develops a set of metrics considering components such as the profile of the health institution, the influencing factors convergence, healthcare environments applicable, the various procedures and health processes and software features. These five components of the indicator called ICOTECH Convergence indicator Technologies and Procedures in Patients Digital medical records are constituted by 205 metrics and analyzed more than 113 variables. These combinations are quantified through ICOTECH algorithm, comparing the average values of the last annual period, the current value and the standard of known market. The result represents a ICOTECH indicator calculated by meter, component and end allowing decision makers to establish goals to be achieved, and competitiveness analysis of performance in relation to industry standards.
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Camez, Salomon Meillon. "Keeping current and increasing the effectiveness of the decision-making process and the interoperability in the digital age geospatial intelligence and Geospatial Information Systems' applications in the military and intelligence fields for the Mexican Navy." Thesis, Monterey, California. Naval Postgraduate School, 2008. http://hdl.handle.net/10945/3799.

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The birth of the digital era - full of new technologies and information systems that increase as time goes by - has forced the military to embrace these innovations so that they do not lose effectiveness or become obsolete when compared with other countries' armed forces. One of these innovations is the Geospatial Information Systems (GIS), which is the result of geography's evolution from its application for naming and delineating the boundaries of countries, seas, and rivers. Modern day applications of this science have transformed it into a more scientific, mathematical, and technological one, which is a powerful tool for GEOINT analysts, and support of the decision-making process in the intelligence and military fields. This thesis introduces the GEOINT-process-model and the main GIS applications in the military and intelligence fields. A practical scenario that embraces a SOF operation is developed through use of the GEOINT process and ArcGIS software. Furthermore, this thesis presents a preliminary approach for the Mexican Navy to embrace the use of GIS and GEOINT.
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Cámez, Salomón Meillón. "Keeping current and increasing the effectiveness of the decision-making process and the interoperability in the digital age geospatial intelligence and Geospatial Information Systems' applications in the military and intelligence fields for the Mexican Navy /." Monterey, Calif. : Naval Postgraduate School, 2008. http://edocs.nps.edu/npspubs/scholarly/theses/2008/Dec/08Dec%5FCamez.pdf.

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Thesis (M.S. in Defense Analysis)--Naval Postgraduate School, December 2008.<br>Thesis Advisor(s): Tsolis, Kristen. "December 2008." Description based on title screen as viewed on January 30, 2009. Includes bibliographical references (p. 225-229). Also available in print.
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Petkov, Petromil. "Motivating domestic energy conservation through comparative feedback in mobile applications and social networking sites." Thesis, Ludwig-Maximilians-Universitat Munchen, 2011. https://eprints.qut.edu.au/66730/1/Masterarbeit_Petromil_Petkov.pdf.

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The progress of technology has led to the increased adoption of energy monitors among household energy consumers. While the monitors available on the market deliver real-time energy usage feedback to the consumer, the form of this data is usually unengaging and mundane. Moreover, it fails to address consumers with different motivations and needs to save and compare energy. This master‟s thesis project presents a study that seeks to inform design guidelines for differently motivated energy consumers. The focus of the research is on comparative feedback supported by a community of energy consumers. In particular, the discussed comparative feedback types are explanatory comparison, temporal self-comparison, norm comparison, one-on-one comparison and ranking, whereby the last three support exploring the potential of socialising energy-related feedback in social networking sites, such as Facebook. These feedback types were integrated in EnergyWiz – a mobile application that enables users to compare with their past performance, neighbours, contacts from social networking sites and other EnergyWiz users. The application was developed through a theory-driven approach and evaluated in personal, semi-structured interviews which provided insights on how motivation-related comparative feedback should be designed. It was also employed in expert focus group discussions which resulted in defining opportunities and challenges before mobile, social energy monitors. The findings have unequivocally shown that users with different motivations to compare and to conserve energy have different preferences for comparative feedback types and design. It was established that one of the most influential factors determining design factors is the people users compare to. In addition, the research found that even simple communication strategies in Facebook, such as wall posts and groups can contribute to engagement with energy conservation practices. The concept of mobility of the application was evaluated as positive since it provides place and time-independent access to the energy consumption data.
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Imbulgoda, Liyangahawatte Gihan Janith Mendis. "Hardware Implementation and Applications of Deep Belief Networks." University of Akron / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=akron1476707730643462.

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Dua, Akshay. "Trust-but-Verify: Guaranteeing the Integrity of User-generated Content in Online Applications." PDXScholar, 2013. https://pdxscholar.library.pdx.edu/open_access_etds/1425.

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Online applications that are open to participation lack reliable methods to establish the integrity of user-generated information. Users may unknowingly own compromised devices, or intentionally publish forged information. In these scenarios, applications need some way to determine the "correctness" of autonomously generated information. Towards that end, this thesis presents a "trust-but-verify" approach that enables open online applications to independently verify the information generated by each participant. In addition to enabling independent verification, our framework allows an application to verify less information from more trustworthy users and verify more information from less trustworthy ones. Thus, an application can trade-off performance for more integrity, or vice versa. We apply the trust-but-verify approach to three different classes of online applications and show how it can enable 1) high-integrity, privacy-preserving, crowd-sourced sensing 2) non-intrusive cheat detection in online games, and 3) effective spam prevention in online messaging applications.
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Wang, Lei. "Effectiveness of text-based mobile learning applications: case studies in tertiary education : a thesis presented to the academic faculty, submitted in partial fulfilment of the requirements for the degree of Master of Information Sciences in Information Technology, Massey University." Massey University, 2009. http://hdl.handle.net/10179/1092.

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This research focuses on developing a series of mobile learning applications for future 'beyond' classroom learning environments. The thesis describes the general use pattern of the prototype and explores the key factors that could affect users‘ attitudes towards potential acceptance of the mobile learning applications. Finally, this thesis explores the user acceptance of the mobile learning applications; and investigates the mobility issue and the comparison of applying learning activities through mobile learning and e-learning.
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Granhed, Anna, and Hanna Söderlund. "The Paradox of User Perceived Performance : An Empirical Study on User Experience in a Digital Platform Ecosystem." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300895.

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User experience is today widely known but the complexity of this phenomenon is rarely left unnoticed. It is righteous to claim that the mobile application landscape is characterized by tough competition and high demands from users. To meet these demands the performance of the application is essential. There appears to exist consensus in existing literature regarding the importance of performance attributes for the user experience of mobile applications. However, there is limited research on how startup time is perceived and its effects on the user experience. Hence, this thesis aims to contribute to this field by investigating the formulated research question: To what extent does startup performance affect the user experience for a mobile application? Using a mixed method approach, this research aims to deepen the understanding of how end users of mobile applications perceive performance. The quantitative part of this study investigates what proxy variables that affect the performance during the startup process of a mobile application. The qualitative part aims to assess how users perceive startup time with respect to influencing factors and the effects on user experience.<br>Användarupplevelse är idag ett välkänt men komplext fenomen. Marknaden för mobila applikationer karaktäriseras av hård konkurrens och höga krav från användarna där tidigare studier har fastställt att prestanda-attribut har betydelse för användarupplevelsen. Det finns däremot begränsad empirisk litteratur kring hur prestanda uppfattas av användarna och effekterna på användarupplevelsen. Det är inom detta område som denna uppsats syftar till att bidra med kunskap. Detta genom att undersöka och besvara den formulerade forskningsfrågan: I vilken utsträckning påverkar start-prestandan användarupplevelsen för en mobilapplikation? Genom att använda en kombination av kvantitativa och kvalitativa metoder, syftar studien till att öka förståelsen kring hur användare av mobila applikationer uppfattar prestanda. Den kvantitativa studien undersöker vilka proxy-variabler som påverkar starttiden för en mobilapplikation. Den kvalitativa studien syftar följaktligen till att utvärdera hur användare uppfattar starttiden för en mobilapplikation med hänsyn till externa faktorer och dess effekt på användarupplevelsen.
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Larm, Anders, and Thomas Rogowiec. "Digitala Lathundar." Thesis, Malmö högskola, Fakulteten för kultur och samhälle (KS), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-23864.

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Patrullerande poliser i Malmö har en varierande och oförutsägbar arbetsmiljö. När de kommer till händelser där de är osäkra på hur de ska agera kan de konsultera tryckt metodstödsmaterial. Dessa tryckta handböcker är ofta utdaterade och icke-standardiserade.Tillsammans med Polisen i Malmö har vi tagit fram ett förslag till hur en digital version av denna typ av material kan se ut, med förslag kring gränssnitt och informationsrepresentation, och en diskussion kring vilka potentiella konsekvenser ett mediebyte kan få för poliserna ute på fältet.För att ta fram dessa designförslag använde vi oss av ett antal interaktionsdesignmetoder. Dessa utvärderar och diskuterar vi, utifrån hur väl de fungerar inom en myndighet som Polisen, i kontexten patrullerande poliser i Malmö.<br>Patrolling officers in Malmö have a varied and unpredictable working environment. When they encounter situations within which they are not certain how to take action, they have printed material with support information. This type of handbook is often outdated and non-standardized. Together with the Malmö Police, we sketch a proposal for how a digital version of this kind of material could be designed, with suggestions for interface design and information representation, as well as outline what the potential consequences could be for the individual officer on the field.While outlining these design suggestions, we utilized a number of different interaction design methods. These are evaluated and discussed as to how well they work within a governmental organization like the Police in Malmö, within the context of patrolling officers.
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Rossi, Heloyse. "English for everybody and everywhere: conexões e convergências." Universidade Estadual do Oeste do Paraná, 2019. http://tede.unioeste.br/handle/tede/4133.

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Submitted by Edineia Teixeira (edineia.teixeira@unioeste.br) on 2019-03-11T18:41:13Z No. of bitstreams: 2 Heloyse_ Rossi_2018.pdf: 11853805 bytes, checksum: c9714d90ddb5b2c8134a833f815ea8e6 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)<br>Made available in DSpace on 2019-03-11T18:41:13Z (GMT). No. of bitstreams: 2 Heloyse_ Rossi_2018.pdf: 11853805 bytes, checksum: c9714d90ddb5b2c8134a833f815ea8e6 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2019-02-06<br>The smartphones have become a vital part of human life, their great expansion and modernization make people connect in cyberspace from the moment they wake up until the time they go to sleep. Taking this into account, the educational processes can create strategies so that this everyday use of smartphones can be converted, at least in parts, into Learning activities. This dissertation, called English for Everybody and Everywhere: Connections and Convergences, linked to the research line Language: Linguistic, Cultural and Teaching Practices in the Master of Art from the State University of the West of Paraná (UNIOESTE), proposes the use of four smartphone applications, Let's Learn English, Duolingo, LyTrans English, and WhatsApp, in the process of English Language Learning, aiming to approach learning to the reality of 21st century students, in order to provide a more creative, interactive and dynamic environment in the classroom, in a process of convergence that establishes connections between students, teachers, cyberspace and their knowledge. This study is an action research with a qualitative approach, in which the researcher assumed the role of teacher, developing practical activities in the applications for smartphone, mentioned above, with a group of high school students from a public school in the city of Cascavel - PR. At the end of the activities with the applications in the school, the research used as data generation, besides the reflections on the practice, an interview with the regent teacher of the selected class, who participated as a listener of all the classes, a diagnostic questionnaire with the students involved and a journal, containing all the observations and impressions of the practice developed with the students. With the research, we sought to verify the possibility of smartphones being used as another way to access information that through integration and interactivity should become an additional knowledge in the students' lives. In the activities developed in the classroom with the selected group, we based ourselves on all the theoretical contribution described in the initial part of the text, and we based on concepts and theories of renowned authors in the area, such as: the Learning of Assmann (1999) and Dal Molin (2003); the importance of planning activities based on the advances of cyberspace and cyberculture, as Lévy points out (1999) and the influences of the culture of convergence in this scenario, according to Jenkins (2009); the characteristics of a rhizomatic teaching that creates maps and escape from from the tree models and decals, based on the theory of Deleuze and Guattari (1995); the new relations with knowledge that emerge from the age of cyberspace, with a collective intelligence and a teacher who passes from the only holder of the knowledge to animator and supervisor of this intelligence, in a process of flipped learning, based on the studies of Lévy (1998b), Moran (2015), Prensky (2001) and others; the advantages that mobile learning can bring both within the classroom and beyond the school environment, following UNESCO (2014), Motter (2013), Souza (2012) among other authors who collaborated for the present study.<br>Os smartphones tem se tornado parte vital da vida dos seres humanos, sua grande expansão e sua modernização fazem com que as pessoas estejam conectadas no ciberespaço desde o momento que acordam até a hora em que vão dormir. Levando isso em conta, os processos educacionais podem criar estratégias para que esse uso cotidiano dos smartphones possa ser convertido, ao menos em partes, para atividades de Aprendência. Essa dissertação, intitulada English for Everybody and Everywhere: conexões e convergências, vinculada à linha de pesquisa Linguagem: Práticas Linguísticas, Culturais e de Ensino, do Mestrado em Letras da Universidade Estadual do Oeste do Paraná (UNIOESTE) propõe o uso de quatro aplicativos para smartphone, Let’s Learn English, Duolingo, LyTrans English, e WhatsApp, no processo de Aprendência de Língua Inglesa, buscando aproximar a aprendizagem da realidade dos estudantes do século XXI, de modo a facultar um ambiente mais criativo, interativo e dinâmico em sala de aula, em um processo de convergência que estabelece conexões entre estudantes, professores, o ciberespaço e seus saberes. Esse estudo se configura como uma pesquisa-ação de abordagem qualitativa, na qual a pesquisadora assumiu o papel de professora, desenvolvendo atividades práticas nos aplicativos para smartphone, citados acima, com um grupo de estudantes do segundo ano do ensino médio de uma escola pública da cidade de Cascavel – PR. Ao final das atividades com os aplicativos na escola, a pesquisa utilizou como geração de dados, além das reflexões sobre a prática, uma entrevista com a professora regente da turma selecionada, que participou como ouvinte de todas as aulas, um questionário diagnóstico com os estudantes envolvidos e um diário de bordo, contento todas as observações e impressões da prática desenvolvida com os estudantes. Com a pesquisa, buscamos verificar a possibilidade dos smartphones serem utilizados como mais uma via de acesso às informações que pela integração e interatividade deve tornar-se um conhecimento a mais na vida dos estudantes. Nas atividades desenvolvidas em sala de aula com o grupo selecionado, baseamo-nos no aporte teórico descrito na parte inicial do texto, e nos embasamos em conceitos e teorias de autores renomados na área, tais como: a Aprendência de Assmann (1999) e Dal Molin (2003); a importância de planejar atividades fundamentadas nos avanços do ciberespaço e da cibercultura, como aponta Lévy (1999) e as influências da cultura de convergência nesse cenário, conforme Jenkins (2009); as características de um ensino rizomático que cria mapas e foge dos modelos de árvore e decalques, baseando-nos na teoria de Deleuze e Guattari (1995); as novas relações com o saber que surgem a partir da era do ciberespaço, com uma inteligência coletiva e um professor que passa de único detentor dos saberes para animador e orientador dessa inteligência, em um processo de flipped learning, tendo como base os estudos de Lévy (1998b), Moran (2015), Prensky (2001) e outros; as vantagens que a aprendizagem móvel pode trazer tanto para dentro de sala de aula quanto para além do ambiente escolar, seguindo UNESCO (2014), Motter (2013), Souza (2012) entre outros autores que colaboraram para o presente estudo.
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30

Cubelic, Cathleen J. "iPad 2 Applications and Emergent Literacy: Do They Have an Impact on the Acquisition of Early Literacy Skills?" Youngstown State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1370348007.

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31

Incerti, Federica. "An Exploration of Emotional Intelligence and Technology Skills Among Students ata Midwestern University." Ohio University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1365541225.

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32

Stahl, Isac, and John Kardell. "Hårproduktion genom böjning av förtexturerade hårkort : En undersökning av modelleringsmetoder samt design av hår till spel." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18612.

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Despite the importance of hair for characters in games, the process for creating realistic looking real-time hair is a highly difficult task that can only be performed by a few artists. As the industry is growing so does expectations of games graphics and the need for higher fidelity hairstyles. This paper sets out to explain current modeling techniques for hairstyling, and presents an alternate way for styling haircard models using curve deformers. Our Blende radd-on, based on this method is then previewed by industry professionals to evaluate their perception of the method’s effectiveness based on “control”, “time” and “preference”. Our conclusion is that per wisp curve based controls are easily learnt, relatively quick to use and gives adequate control over each haircard. The method therefore shows promise instream lining artists’ production pipelines. This test serves as a pilot for further exploration of curve based tools for production of real-time hair.
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33

Örtendahl, Jennelie. "Ett hav av matematikapplikationer, och att hitta rätt : En analys av matematikapplikationer som används i grundskolans tidigare år." Thesis, Karlstads universitet, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-57081.

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Applikationer har blivit en tillgång för att utveckla elevernas kunskaper inom taluppfattning. Men innehåller applikationer didaktiska eller pedagogiska styrkor som andra läromedel inte innehåller? Vilka matematiska kunskaper är möjliga att utveckla genom att spela en applikation inom området? Med dessa frågeställningar tog denna studie avstamp som syftar till att studera applikationers layout och innehåll inom taluppfattning. Studien är en kvalitativ innehållsanalys där 39 applikationer har analyserats genom en analysmodell. Alla applikationerna används av elever i förskoleklass eller grundskolans tidigare år 1–3 någonstans bland landets grundskolor inom ramen för matematikundervisningen. Studien visar att applikationerna är utformade med en layout som har en stimulerande och intresseväckande effekt hos eleverna. Applikationernas möjlighet till individuell direkt återkoppling kan dessutom bidra till att elevernas motivation ökar. Vilket matematiskt innehåll som applikationerna erbjuder varierar. De områden inom taluppfattning som minst antal applikationer behandlar är mönster och rimlighetsbedömning. Däremot erbjuder delar av applikationerna möjligheten att utveckla elevernas aritmetiska kunskaper.<br>Applications have become a resource for developing students' knowledge in number sense. But do applications have didactical or educational strengths that other teaching materials don´t? What mathematical skills are possible to develop by playing an application in the field? With these questions, this study took off with the aim to study applications' layout and content within number sense. The study was conducted thru a qualitative content analysis, where 39 applications were analyzed by a framework. All applications are used by students in pre-school or primary school's somewhere among the country's elementary schools within the framework of mathematics education. The study shows that the applications are designed with a layout, that has a stimulating and interesting effect on the students. What mathematical skills these applications contains varies. Patterns and reasonability are the two most uncommon components of number sense apparent in the applications. However a large part of the applications develop the students' arithmetic skills.
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Heise, Ylva U., and My Hägg. "Användarprofiler och personas för utveckling av e-hälsotjänster för djur." Thesis, Malmö universitet, Fakulteten för teknik och samhälle (TS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-20502.

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E-hälsa är och har varit på framväxt de senaste åren och idag finns mer och mer av vården tillgänglig digitalt. Denna utveckling sker också inom djurvården, men det finns inga vetenskapliga studier som beskriver djurägare som användare av digitala tjänster. För att utveckla riktade och användbara tjänster krävs god kännedom om målgruppen. Syftet med denna studie är att påbörja ämnet inom vetenskapen och kartlägga djurägares behov och inställning till digitala e-hälsotjänster för djur, och därmed skapa insikt kring målgruppens beteende och förväntningar. Denna information kan sedan användas i utvecklingen av tjänster där djurägare är den primära målgruppen. Genom en semistrukturerad explorativ enkätstudie samlades kvalitativa och kvantitativa data om svenska djurägare in. Studien grundades delvis på information från studier inom e-hälsa för människor och digitala vårdmöten. Utifrån den insamlade datan konstruerades fiktiva representativa användarprofiler, i.e. personas. Inom användarcentrerad design och utveckling är personas en välkänd metod för att på ett konkret sätt visualisera en tänkt användares behov och förutsättningar. Totalt 139 personer deltog i enkätstudien varav 39 personer hade använt en digital veterinärvårdstjänst. Majoriteten av deltagarna utgjordes av kvinnor och den största åldersgruppen var 26–45 år. Resultaten visar att djurägare är medvetna konsumenter som väljer djurvård med omsorg, då 62% någon gång aktivt bytt klinik. En överväldigande majoritet har försäkrat sina djur men ändå spelar ekonomiska faktorer stor roll för gruppen och påverkar deras val av djurvård. Resultatet indikerar att djurägare gör en aktiv bedömning innan de kontaktar veterinär, och att digitala veterinärvårdsapplikationer kan fungera som ett stöd i beslutsprocessen gällande om det är nödvändigt att besöka en fysisk klinik eller ej. Gruppen som använt veterinärvårdsapp är generellt mycket nöjda med tjänsten, även om flera påtalar det svåra i att visa upp skadan/djuret i ett videosamtal.<br>The e-health sector is growing rapidly, with more and more services becoming available to patients that allow them to digitally connect with their healthcare providers. E-health for pets has started to arise as well, but there is no research that covers the perspective of pet-owners as digital users. Good knowledge of the target user is critical for development of digital services that meet the wants and needs of end users. The aim of this study is to begin to remedy this research gap by mapping the mindset of pet owners, so as to provide greater insights into the behaviour and expectation of potential end users. This information can be utilized to further optimize and enhance user experience within development of applications where pet-owners are the target user. A semi-structured survey was created to collect quantitative and qualitative data and the survey sampled a wide range of Swedish pet owners. The survey was to some extent based upon information from studies within e-health for humans, with modifications made to apply to veterinary care. The gathered data was analyzed and used to create fictional user profiles, i.e. personas. Personas is a well-used method to visualize the needs and objectives of target users within user centered design and development. A total of 139 pet owners completed the survey. Only 39 had prior experience with digital veterinary applications. The majority of participants were female, and the largest age group were between 26 and 45 years. The results show that pet owners are aware consumers and carefully elect their pet care providers, as 62% actively have changed veterinary clinic. Even though an overwhelming majority of pet owners had pet insurance, economic factors were a key driver in determining pet care. The results indicate that pet owners evaluates the situation prior to contact with a veterinary, and that a digital veterinary app can be useful for pet owners by providing support in determining whether a visit to a veterinary clinic is necessary or not. Those that had prior experience with digital veterinary apps expressed that they were overall satisfied with the service, although several mentioned that it was difficult to accurately show the animal and the issue through video.
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Fenollosa, Artés Felip. "Contribució a l'estudi de la impressió 3D per a la fabricació de models per facilitar l'assaig d'operacions quirúrgiques de tumors." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/667421.

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La present tesi doctoral s’ha centrat en el repte d’aconseguir, mitjançant Fabricació Additiva (FA), models per a assaig quirúrgic, sota la premissa que els equips per fer-los haurien de ser accessibles a l’àmbit hospitalari. L’objectiu és facilitar l’extensió de l’ús dels prototips com a eina de preparació d’operacions quirúrgiques, transformant la pràctica mèdica actual de la mateixa manera que en el seu moment ho van fer tecnologies com les que van facilitar l’ús de radiografies. El motiu d’utilitzar FA, en lloc de tecnologies més tradicionals, és la seva capacitat de materialitzar de forma directa les dades digitals obtingudes de l’anatomia del pacient mitjançant sistemes d’escanejat tridimensional, fent possible l’obtenció de models personalitzats. Els resultats es centren en la generació de nou coneixement sobre com aconseguir equipaments d’impressió 3D multimaterials accessibles que permetin l’obtenció de models mimètics respecte als teixits vius. Per facilitar aquesta buscada extensió de la tecnologia, s’ha focalitzat en les tecnologies de codi obert com la Fabricació per Filament Fos (FFF) i similars basades en líquids catalitzables. La recerca s’alinea dins l’activitat de desenvolupament de la FA al CIM UPC, i en aquest àmbit concret amb la col·laboració amb l’Hospital Sant Joan de Déu de Barcelona (HSJD). El primer bloc de la tesi inclou la descripció de l’estat de l’art, detallant les tecnologies existents i la seva aplicació a l’entorn mèdic. S’han establert per primer cop unes bases de caracterització dels teixits vius -sobretot tous- per donar suport a la selecció de materials que els puguin mimetitzar en un procés de FA, a efectes de millorar l’experiència d’assaig dels cirurgians. El caràcter rígid dels materials majoritàriament usats en impressió 3D els fa poc útils per simular tumors i altres referències anatòmiques. De forma successiva, es tracten paràmetres com la densitat, la viscoelasticitat, la caracterització dels materials tous a la indústria, l’estudi del mòdul elàstic de teixits tous i vasos, la duresa d’aquests, i requeriments com l’esterilització dels models. El segon bloc comença explorant la impressió 3D mitjançant FFF. Es classifiquen les variants del procés des del punt de vista de la multimaterialitat, essencial per fer models d’assaig quirúrgic, diferenciant entre solucions multibroquet i de barreja al capçal. S’ha inclòs l’estudi de materials (filaments i líquids) que serien més útils per mimetitzar teixits tous. Es constata com en els líquids, en comparació amb els filaments, la complexitat del treball en processos de FA és més elevada, i es determinen formes d’imprimir materials molt tous. Per acabar, s’exposen sis casos reals de col·laboració amb l’HJSD, una selecció d’aquells en els que el doctorand ha intervingut en els darrers anys. L’origen es troba en la dificultat de l’abordatge d’operacions de resecció de tumors infantils com el neuroblastoma, i a la iniciativa del Dr. Lucas Krauel. Finalment, el Bloc 3 té per objecte explorar nombrosos conceptes (fins a 8), activitat completada al llarg dels darrers cinc anys amb el suport dels mitjans del CIM UPC i de l’activitat associada a treballs finals d’estudis d’estudiants de la UPC, arribant-se a materialitzar equipaments experimentals per validar-los. La recerca ampla i sistemàtica al respecte fa que s’estigui més a prop de disposar d’una solució d’impressió 3D multimaterial de sobretaula. Es determina que la millor via de progrés és la de disposar d’una pluralitat de capçals independents a fi de capacitar la impressora 3D per integrar diversos conceptes estudiats, materialitzant-se una possible solució. Cloent la tesi, es planteja com seria un equipament d’impressió 3D per a models d’assaig quirúrgic, a fi de servir de base per a futurs desenvolupaments.<br>La presente tesis doctoral se ha centrado en el reto de conseguir, mediante Fabricación Aditiva (FA), modelos para ensayo quirúrgico, bajo la premisa que los equipos para obtenerlos tendrían que ser accesibles al ámbito hospitalario. El objetivo es facilitar la extensión del uso de modelos como herramienta de preparación de operaciones quirúrgicas, transformando la práctica médica actual de la misma manera que, en su momento, lo hicieron tecnologías como las que facilitaron el uso de radiografías. El motivo de utilizar FA, en lugar de tecnologías más tradicionales, es su capacidad de materializar de forma directa los datos digitales obtenidos de la anatomía del paciente mediante sistemas de escaneado tridimensional, haciendo posible la obtención de modelos personalizados. Los resultados se centran en la generación de nuevo conocimiento para conseguir equipamientos de impresión 3D multimateriales accesibles que permitan la obtención de modelos miméticos respecto a los tejidos vivos. Para facilitar la buscada extensión de la tecnología, se ha focalizado en las tecnologías de código abierto como la Fabricación por Hilo Fundido (FFF) y similares basadas en líquidos catalizables. Esta investigación se alinea dentro de la actividad de desarrollo de la FA en el CIM UPC, y en este ámbito concreto con la colaboración con el Hospital Sant Joan de Déu de Barcelona (HSJD). El primer bloque de la tesis incluye la descripción del estado del arte, detallando las tecnologías existentes y su aplicación al entorno médico. Se han establecido por primera vez unas bases de caracterización de los tejidos vivos – principalmente blandos – para dar apoyo a la selección de materiales que los puedan mimetizar en un proceso de FA, a efectos de mejorar la experiencia de ensayo de los cirujanos. El carácter rígido de los materiales mayoritariamente usados en impresión 3D los hace poco útiles para simular tumores y otras referencias anatómicas. De forma sucesiva, se tratan parámetros como la densidad, la viscoelasticidad, la caracterización de materiales blandos en la industria, el estudio del módulo elástico de tejidos blandos y vasos, la dureza de los mismos, y requerimientos como la esterilización de los modelos. El segundo bloque empieza explorando la impresión 3D mediante FFF. Se clasifican las variantes del proceso desde el punto de vista de la multimaterialidad, esencial para hacer modelos de ensayo quirúrgico, diferenciando entre soluciones multiboquilla y de mezcla en el cabezal. Se ha incluido el estudio de materiales (filamentos y líquidos) que serían más útiles para mimetizar tejidos blandos. Se constata como en los líquidos, en comparación con los filamentos, la complejidad del trabajo en procesos de FA es más elevada, y se determinan formas de imprimir materiales muy blandos. Para acabar, se exponen seis casos reales de colaboración con el HJSD, una selección de aquellos en los que el doctorando ha intervenido en los últimos años. El origen se encuentra en la dificultad del abordaje de operaciones de resección de tumores infantiles como el neuroblastoma, y en la iniciativa del Dr. Lucas Krauel. Finalmente, el Bloque 3 desarrolla numerosos conceptos (hasta 8), actividad completada a lo largo de los últimos cinco años con el apoyo de los medios del CIM UPC y de la actividad asociada a trabajos finales de estudios de estudiantes de la UPC, llegándose a materializar equipamientos experimentales para validarlos. La investigación amplia y sistemática al respecto hace que se esté más cerca de disponer de una solución de impresión 3D multimaterial de sobremesa. Se determina que la mejor vía de progreso es la de disponer de una pluralidad de cabezales independientes, a fin de capacitar la impresora 3D para integrar diversos conceptos estudiados, materializándose una posible solución. Para cerrar la tesis, se plantea cómo sería un equipamiento de impresión 3D para modelos de ensayo quirúrgico, a fin de servir de base para futuros desarrollos.
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36

Robinson, Jonathan. "The application of support vector machines to compression of digital images." 2004. http://hdl.handle.net/2292/1937.

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Methods exploring the application of neural networks to still image compression are detailed in both the spatial and frequency domains. In particular the sparse properties of Support Vector Machine (SVM) learning are exploited in the compression algorithms. A classic radial basis function (RBF) neural network requires that the topology of the network be defined before training. An SVM has the property that it will choose the minimum number of training points to use as centres of the Gaussian kernel functions. It is this property that is exploited as the basis for image compression algorithms presented in this thesis. Several novel algorithms are developed applying SVM learning to both directly model the colour surface and model transform coefficients after the surface has been transformed into the frequency domain. It is demonstrated that compression is more efficient in frequency space. The Discrete Cosine Transform (DCT) is used to transform the colour surface into the frequency domain. A counter-intuitive result is shown where mapping the DCT coefficients to a 1-dimensional function for SVM modelling produces better results than SVM modelling of the 2-dimensional transform surface. Results are presented in comparison to the JPEG image compression algorithm. In the frequency domain, results are superior to that of JPEG. For example, the quality of the 'Lena' image compressed 63:1 for JPEG is slightly worse quality than the same image compressed 192:1 with the RKi-1 algorithm presented in this thesis. Due to the commercial value of the algorithms detailed in this thesis, a patent has been filed.
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Huang, Beilei. "A resampling theory for non-bandlimited signals and its applications : a thesis presented for the partial fulfillment of the requirements for the degree of Doctor of Philosophy in Engineering at Massey University, Wellington, New Zealand." 2008. http://hdl.handle.net/10179/773.

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Currently, digital signal processing systems typically assume that the signals are bandlimited. This is due to our knowledge based on the uniform sampling theorem for bandlimited signals which was established over 50 years ago by the works of Whittaker, Kotel'nikov and Shannon. However, in practice the digital signals are mostly of finite length. This kind of signals are not strictly bandlimited. Furthermore, advances in electronics have led to the use of very wide bandwidth signals and systems, such as Ultra-Wide Band (UWB) communication systems with signal bandwidths of several giga-hertz. This kind of signals can effectively be viewed as having infinite bandwidth. Thus there is a need to extend existing theory and techniques for signals of finite bandwidths to that for non-bandlimited signals. Two recent approaches to a more general sampling theory for non-bandlimited signals have been published. One is for signals with finite rate of innovation. The other introduced the concept of consistent sampling. It views sampling and reconstruction as projections of signals onto subspaces spanned by the sampling (acquisition) and reconstruction (synthesis) functions. Consistent sampling is achieved if the same discrete signal is obtained when the reconstructed continuous signal is sampled. However, it has been shown that when this generalized theory is applied to the de-interlacing of video signals, incorrect results are obtained. This is because de-interlacing is essentially a resampling problem rather than a sampling problem because both the input and output are discrete. While the theory for the resampling for bandlimited signals is well established, the problem of resampling without bandlimited constraints is largely unexplored. The aim of this thesis is to develop a resampling theory for non-bandlimited discrete signals and explore some of its potential applications. The first major contribution is the the theory and techniques for designing an optimal resampling system for signals in the general Hilbert Space when noise is not present. The system is optimal in the sense that the input of the system can always be obtained from the output. The theory is based on the concept of consistent resampling which means that the same continuous signal will be obtained when either the original or the resampled discrete signal is presented to the reconstruction filter. While comparing the input and output of a sampling/reconstruction system is relatively simple since both are continuous signals, comparing the discrete input and output of a resampling system is not. The second major contribution of this thesis is the proposal of a metric that allows us to evaluate the performance of a resampling system. The performance is analyzed in the Fourier domain as well. This performance metric also provides a way by which different resampling algorithms can be compared effectively. It therefore facilitates the process of choosing proper resampling schemes for a particular purpose. Unfortunately consistent resampling cannot always be achieved if noise is present in the signal or the system. Based on the performance metric proposed, the third major contribution of this thesis is the development of procedures for designing resampling systems in the presence of noise which is optimal in the mean squared error (MSE) sense. Both discrete and continuous noise are considered. The problem is formulated as a semi-definite program which can be solved effciently by existing techniques. The usefulness and correctness of the consistent resampling theory is demonstrated by its application to the video de-interlacing problem, image processing, the demodulation of ultra-wideband communication signals and mobile channel detection. The results show that the proposed resampling system has many advantages over existing approaches, including lower computational and time complexities, more accurate prediction of system performances, as well as robustness against noise.
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Allen, Warwick Peter Malcolm. "Analysis and application of the spectral warping transform to digital signal processing." 2007. http://hdl.handle.net/10179/807.

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This thesis provides a thorough analysis of the theoretical foundations and properties of the Spectral Warping Transform. The spectral warping transform is defined as a time-domain-to-time-domain digital signal processing transform that shifts the frequency components of a signal along the frequency axis. The z -transform coefficients of a warped signal correspond to z -domain ‘samples’ of the original signal that are unevenly spaced along the unit circle (equivalently, frequency-domain coefficients of the warped signal correspond to frequency-domain samples of the original signal that are unevenly spaced along the frequency axis). The location of these unevenly spaced frequency-domain samples is determined by a z -domain mapping function. This function may be arbitrary, except that it must map the unit circle to the unit circle. It is shown that, in addition to the frequency location, the bandwidth, duration and amplitude of each frequency component of a signal are affected by spectral warping. Specifically, frequency components within bands that are expanded in frequency have shortened durations and larger amplitudes (conversely, components in compressed frequency bands become longer with smaller amplitudes). A property related to the expansion and compression of the duration of frequency components is that if a signal is time delayed (its digital sequence is prepended with zeroes) then each of the frequency components will have a different delay after warping. This time-domain separation phenomenon is useful for separating in time the frequency components of a signal. Such separation is employed in the generation of spectrally flat chirp signals. Because spectral warping will generally expand the duration of some frequency components within a signal, the transform must produce more output samples than there are (non-zero) input samples in order to avoid time-domain aliasing. A discussion of the necessary output signal length is presented. Particular attention is given to spectral warping using all-pass mapping function, which can be realised as a cascade of all-pass filters. There exists an efficient hardware implementation for this all-pass SW realisation [1, 2]. A proof-of-concept application-specific integrated circuit that performs the core operations required by this algorithm was developed. Another focus of the presented research is spectral warping using a piecewise- linear mapping function. This type of spectral warping has the advantage that the changes in frequency, duration and amplitude between the non-warped and warped signals are constant factors over fixed frequency bands. A matrix formulation of the spectral warping transformation is developed. It presents the spectral warping transform as a single matrix multiplication. The transform matrix is the product of the three matrices that represent three conceptual steps. The first step is to apply a discrete Fourier transform to the time-domain signal, providing the frequency-domain representation. Step two is an interpolation to produce the signal content at the desired new frequency samples. This interpolation effectively provides the frequency warping. The final step is an inverse DFT to transform the signal back into the time domain. A special case of the spectral warping transform matrix has the same result as a linear (finite-impulse-response) filter, showing that spectral warping is a generalisation of linear filtering. The conditions for the invertibility of the spectral warping transformation are derived. Several possible realisation of the SW transform are discussed. These include two realisation using parallel finite-impulse-response filter banks and a realisation that uses a cascade of infinite-impulse-response filters. Finally, examples of applications for the spectral warping transform are given. These include: non-uniform spectral analysis (and signal generation), approximate spectral analysis in the time domain, and filter design. This thesis concludes that the SW transform is a useful tool for the manipulation of the frequency content of digital signals, and is particularly useful when the frequency content of a signal (or the frequency response of a system) over a limited band is of interest. It is also claimed that the SW transform may have valuable applications for embedded mixed-signal testing.
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Li, Jhao-Min, and 李兆民. "Applications and Opportunities of digital technology in smart city." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/g88wcj.

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碩士<br>國立臺灣科技大學<br>工業管理系<br>106<br>Nearly half of the world's population lives in cities, and cities provide better employment opportunities, educational environments, medical resources, etc., thus attracting many people to move in. However, the rapid and unplanned population growth will lead to urban turmoil, hunger and poverty, and population demand beyond the supply of resources. Therefore, the development of smart cities has become the primary goal of all countries. Through a new generation of digital technologies such as the Internet of Things, cloud computing, big data analytics, cognitive computing, artificial intelligence, blockchain, etc., applied to urban environmental resources, municipal management, social livelihood, transportation, infrastructure, In the industrial economy and so on, we connect our perceptions with all equipment systems to achieve effective interaction, so that people can have better work efficiency and quality of life. Therefore, this research explores the application of smart cities in the current mainstream digital technology, Internet of Things, artificial intelligence, and blockchain, and integrates the development opportunities and strategies for promoting smart cities in the future. It is hoped that through digital technology and people-oriented thinking, we will solve the problems that the public is most concerned about, and improve the quality of life and satisfaction of the city.
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Liu, Cjien-cheng, and 劉建成. "Research on Embedded Metadata Technology for Digital Image Management Applications." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/27954422132576270119.

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碩士<br>國立臺灣師範大學<br>圖書資訊學研究所<br>98<br>Embedded Metadata is a technical application of inserting the metadata into digital files. For archiving management; it can be used to solve the missing problems of descriptions which were caused by people handling the digital objects and metadata separately. In term of files management, it can be used to improve search problems of image. The Embedded Metadata technology has been implemented from 2000 and has become a mature technology now. Although it is comprehensive applied in Journalism & Communication, design and printing pruposes, it’s rarely been used in archiving management. This study was based on the analysis of Embedded Metadata technology, such as DIG35, MIX, DISC, EXIF, IPTC and Adobe XMP, and the result of interviews and application senarios to build an archiving application model. The study result shows the suggestions of applying Embedded Metadata technology in archive system, including implement specifications, file format and application of technology, and the implement limitation and extension.
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41

Patnala, Mounica. "High Performance GNRFET Devices for High-Speed Low-Power Analog and Digital Applications." Thesis, 2019. http://hdl.handle.net/1805/18945.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>Recent ULSI (ultra large scale integration) technology emphasizes small size devices, featuring low power and high switching speed. Moore's law has been followed successfully in scaling down the silicon device in order to enhance the level of integration with high performances until conventional devices failed to cop up with further scaling due to limitations with ballistic effects, and challenges with accommodating dopant fluctuation, mobility degradation, among other device parameters. Recently, Graphene based devices o ered alternative approach, featuring small size and high performances. This includes high carrier mobility, high carrier density, high robustness, and high thermal conductivity. These unique characteristics made the Graphene devices attractive for high speed electronic architectures. In this research, Graphene devices were integrated into applications with analog, digital, and mixed signals based systems. Graphene devices were briefly explored in electronics applications since its first model developed by the University of Illinois, Champaign in 2013. This study emphasizes the validation of the model in various applications with analog, digital, and mixed signals. At the analog level, the model was used for voltage and power amplifiers; classes A, B, and AB. At the digital level, the device model was validated within the universal gates, adders, multipliers, subtractors, multiplexers, demultiplexers, encoders, and comparators. The study was also extended to include Graphene devices for serializers, the digital systems incorporated into the data structure storage. At the mixed signal level, the device model was validated for the DACs/ADCs. In all components, the features of the new devices were emphasized as compared with the existing silicon technology. The system functionality and dynamic performances were also elaborated. The study also covered the linearity characteristics of the devices within full input range operation. GNRFETs with a minimum channel length of 10nm and an input voltage 0.7V were considered in the study. An electronic design platform ADS (Advanced Design Systems) was used in the simulations. The power amplifiers showed noise figure as low as 0.064dbs for class A, and 0.32 dbs for class B, and 0.69 dbs for class AB power amplifiers. The design was stable and as high as 5.12 for class A, 1.02 for class B, and 1.014 for class AB. The stability factor was estimated at 2GHz operation. The harmonics were as low as -100 dbs for class A, -60 dbs for class B, and -50dbs for class AB, all simulated at 1GHz. The device was incorporated into ADC system, and as low as 24.5 micro Watt power consumption and 40 nsec rise time were observed. Likewise, the DAC showed low power consumption as of 4.51 micro Watt. The serializer showed as minimum power consumption of the order of 0.4mW. These results showed that these nanoscale devices have potential future for high-speed communication systems, medical devices, computer architecture and dynamic Nano electromechanical (NEMS) which provides ultra-level of integration, incorporating embedded and IoT devices supporting this technology. Results of analog and digital components showed superiority over other silicon transistor technologies in their ultra-low power consumption and high switching speed.
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42

Guimaraes, Amanda De Azevedo. "Digital transformation in the insurance industry: applications of artificial intelligence in fraud detection." Master's thesis, 2020. http://hdl.handle.net/10362/108422.

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The insurance industry has always been a crucial part of the economy and society’s progress worldwide. However, it is currently facing an unprecedented scenario composed of high risks and opportunities. This study aims to explain and analyze the process of digitalization in this sector and what are the available applications of artificial intelligence for fraud detection in claim management.It also comprehends a discussion about Brazil, with recommendations that were validated with local professionals from major players in the industry. Hence, the methodological approach chosen for this study wasa combination of the qualitative method, essentially based on the review and analysis of academic literature and reports, with important interviews.Lastly, it was concluded that most insurance companies are still at the beginning of the digitalization process, seeking a better understanding of its landscape. Consequently, A.I.applications are slowly being implemented by some large insurance companies.
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43

Rocha, Cristóvão Fraga Andrade Pereira da. "Design and development of large-scale flow fields and bipolar plates for pem fuel cells in aircraft applications." Master's thesis, 2021. https://hdl.handle.net/10216/137195.

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44

HOLLOS, Adriana Cox. "O Futuro da memoria digital da administração publica brasileira." Thesis, 2014. http://eprints.rclis.org/28359/1/Tese%20%20Adriana%20Cox%20Hollos.pdf.

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The object of this research are the preservation policies of digital public information from government. It falls in a context related to the debates on public information policies of the Brazilian government and it assumes that it is not possible to provide continued access to born digital information without association to records management and digital preservation. It does a political analysis of the implementation process of the Lei de Acesso à Informação, n°. 12.527, November 08, 2011 (LAI) in the Federal Executive Branch. It also identifies and discusses the context, the responsibilities and the established relationships between the concerned actors - Controladoria-Geral da União (CGU), Arquivo Nacional (AN) and Conselho Nacional de Arquivos (CONARQ). The exploratory research on the CGU website identified relevant information about the actions and programs planned to be developed by CGU within the archival policies. In addition correlated LAI legislation and 730 news collected on Google were analyzed to identify speeches and arguments of political actors involved in it and to know about the context in which the brazilian government information policy is developed. It concludes that the lack of mechanisms defining the responsibilities of each actor implies in the absence of a public policy that does ensures that archival policies are really part of the links that comprise the chain of contemporary information policy. It also concludes that the LAI is in compliance with archival policy, but there is not regulation of the responsibilities of each actor in the political process concerned to the deployment of LAI, bringing risks for the constitution of digital legacy for future generations.
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45

Berber, Stevan M. 1950. "Methods and techniques for parameter and distribution function estimation in cascaded digital channels with and without memory." 2001. http://hdl.handle.net/2292/1958.

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Whole document restricted, see Access Instructions file below for details of how to access the print copy.<br>Future telecommunication networks will employ digital transmission techniques. Such networks will provide a number of benefits including the ability to integrate voice and non-voice messages. The transmission channel of this network can be represented by a cascaded channel composed of a number of elementary channels connected in series. Therefore the modelling of such a channel is of particular interest. The influence of noise and other impairments in the cascaded binary channel cause errors which may be represented by a binary signal called the error sequence. Consequently, an important step in digital channel modelling is estimation of parameters and distribution functions which characterise the statistical properties of error sequences in the channel. Thus, the development of efficient methods for this estimation is a problem of long term interest which should be properly solved. This thesis presents methods and techniques for parameter (primarily the probability of error) and distribution function (primarily the error gap complementary distribution function) estimation using the error sequences obtained by measurement or simulation in elementary or cascaded channels. Theoretical analysis and testing confirm that it is possible to control the accuracy and reliability of estimation. Two principal and practical methods for the probability of error estimation are developed: the modified Monte Carlo method (MMC); and the method based on Chebyshev inequality (MCI). In contrast to the traditional Monte Carlo method based on classical statistics, the methods developed in this thesis aim to specify the sample size required to achieve the desired accuracy. The methods developed are based on the dependence of the sample size on the estimated value of a parameter being estimated. Hence the sample size is a random variable and the confidence limits factor (which specifies the width of confidence interval in respect to the estimated value) is a constant. Based on these methods, this thesis proposes and demonstrates two techniques for parameter estimation. The traditional Monte Carlo method has been primarily used for the probability of error estimation in channels without memory. In this thesis the capabilities of this method are extended to the case of estimating the probability of error in channels with memory and cascaded channels. However, even with this extension, this method is not practical due to its complexity and limitations on the qualification and quantification of the accuracy and reliability of estimation. Also, the extended method is unable to satisfactorily estimate the probability of error in cascaded channels with memory; nor could it improve the speed of the estimation process. Two methods and two techniques for distribution function estimation are developed in this thesis. They are demonstrated by estimating the error gap complementary functions of simulated data. For this purpose, simulators of binary channels with and without memory have been developed. The methods and techniques are characterised by their simplicity in application; ability to quantify the accuracy and reliability; time efficiency; and real time capability. The wider application of the methods and techniques developed in this thesis are demonstrated on three examples: a distribution function estimation using data obtained by indoor wideband radio propagation measurement; BER characteristics measurement; and measurement of the residual probability of error in transmission systems using error correcting codes. From the results obtained in the thesis some recommendations for future work in the field of digital channel modelling and simulation are discussed.
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46

Yeke, Yazdandoost Mohammad. "Photon Quantum Noise Limited Pixel and Array architectures in a-Si Technology for Large Area Digital Imaging Applications." Thesis, 2011. http://hdl.handle.net/10012/6220.

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A Voltage Controlled Oscillator (VCO) based pixel and array architecture is reported using amorphous silicon (a-Si) technology for large area digital imaging applications. The objectives of this research are to (a) demonstrate photon quantum noise limited pixel operation of less than 30 input referred noise electrons, (b) theoretically explore the use of the proposed VCO pixel architecture for photon quantum noise limited large area imaging applications, more specifically protein crystallography using a-Si, (c) to implement and demonstrate experimentally a quantum noise limited (VCO) pixel, a small prototype of quantum noise limited (VCO) pixelated array and a quantum noise limited (VCO) pixel integrated with direct detection selenium for energies compatible with a protein crystallography application. Electronic noise (phase noise) and metastability performance of VCO pixels in low cost, widely available a-Si technology will be theoretically calculated and measured for the first time in this research. The application of a VCO pixel architecture in thin film technologies to large area imaging modalities will be examined and a small prototype a-Si array integrated with an overlying selenium X-ray converter will be demonstrated for the first time. A-Si and poly-Si transistor technologies are traditionally considered inferior in performance to crystalline silicon, the dominant semiconductor technology today. This work v aims to extend the reach of low cost, thin film transistor a-Si technology to high performance analog applications (i.e. very low input referred noise) previously considered only the domain of crystalline silicon type semiconductor. The proposed VCO pixel architecture can enable large area arrays with quantum noise limited pixels using low cost thin film transistor technologies.
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47

Pei-JunXie and 謝佩君. "Information Technology Learning for the Elderly and Design Applications: A Case Study on User Interface of Digital Album." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/ma66m9.

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碩士<br>國立成功大學<br>工業設計學系碩博士班<br>101<br>The coming of aging societies is a global trend and Taiwan is included as one of the aging societies, according to United Nations' criteria. The study investigates the difficulties and requirements of learning computer basics and internet application for the elderly. The targets of this research were elders ranged from age 50 to 65 who learn computer basics and internet application in social education centre. This research used Contextual Inquiry method with participant observation and interviews to understand the target users’ experience when learning the basics of computer and internet. Furthermore, their requirements for the contents of digital album , as well as their demands with the functions and user interface design. With the interface design process, this research aimed to design a digital album interface which is suitable for the elderly.
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48

余孟杰. "A Study on Human-computer Interaction in computer Interaction Technology -Human Body Motion Applies in digital Edutainment Applications." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/75281640806139798803.

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49

Savage, Matthew James Waipurukuma. "A design framework and genetic algorithm for digital design optimisation on FPGAs." 2009. http://hdl.handle.net/2292/4523.

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Design tools of ever increasing power are required to keep pace with technological improvements in chip production. Chip capacities continually increase meaning that designs previously unfeasible become feasible. These designs are typically more complex and larger than their predecessors. Usually, the time available to a designer does not increase at the same rate. A designer is therefore tasked with a greater work load and a very limited amount of time. Design tools and automation are therefore necessary to compensate for this situation. The limiting characteristics of a design tool are its ease of use, the range of systems it can be applied to, and the quality of results obtained. Should a design tool lack in any of these three areas it will be of limited benefit. This work addresses only the quality of results obtained. While the other two are essential, they are unlikely to be relevant to a design tool if that tool is not adopted because the results were of insufficient quality. A design framework is proposed for the digital design of systems on FPGAs. This framework sets out the processes for producing a system specification of the design problem encountered, and then gives a procedure for processing that specification to produce a set of pareto-optimal designs in VHDL to implement the specification. The actual mapping of a specification to a VHDL design, is held in a mapping string that allows optimisation to be separated from other stages in the design framework. A new genetic algorithm, the Adaptive Speciation Genetic Algorithm (ASGA), is proposed featuring a customised selection, crossover, and mutation operator. This algorithm is assessed against other genetic algorithms from the literature on a knapsack problem and three digital design case studies. These case studies were the design of a parameter estimation circuit for a Self-Tuning Regulator (STR), the design of a Sum-of-Absolute- Difference (SAD) function for video motion detection problems, and the design of a five state Extended Kalman Filter (EKF). Results indicated that ASGA had good performance in all these problems. Through tests against other genetic algorithms, it was found the ASGA’s selection operator was inferior in some cases to that of the Pareto Envelope Selection Algorithm (PESA) by 3 Corne et al. By incorporating the selection operator of PESA performance improvements could be gained in the EKF problem.
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TSAO, LI-DAN, and 曹力丹. "Consumer acceptance model to Outdoor LED Large Digital Signage: the applications of Theory of Planned Behavior and Technology Acceptance Model." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/57367708204461144586.

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碩士<br>國立勤益科技大學<br>企業管理系<br>102<br>In recent years, there has been a growing importance placed on research in Large Digital Signage, In the Taiwan everywhere can see the Monitor and many different ads, the traditional advertising has be replaced, the monitor will transform human’s life and findings business, Therefore, this study consultation Davis (1989) and Ajzen (1985) provide an excellent review of the methods, findings and instructional issues related to Theory of Planned Behavior and Technology Acceptance Model, A number of studies have shown difference in Customer groups across different of consumers, so this study was applications of consumer acceptance model to Outdoor LED Large Digital Signage , and distinguish three types of consumers , The First Groups have saw the Digital Signage adv. but no impression ; The Second Group was impressed of digital signage adv. but no buy ; The Third Groups have the impression of digital signage adv. and buy ; The study we present in the present paper is an attempt to supplement the findings of these earlier studies. It’s similar to the previous studies discussed above, in that the focus is on Investigate the behavior of consumers for technology acceptance and achieve effective publicity. This paper results indicated as follows: 1.The results show a striking effect of the acceptance and advertising effectiveness highest on the Third Groups. 2.Clearly, the findings indicate that "Consumer attitude ",” subjective norm," “behavioral restrictions” has a positive effect on “Perceived Usefulness”, “Perceived Ease of Use”.
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