This research first defines money and lists its functions and properties. Among these properties, the anonymity and off-line capability of money are pointed out. Then the history of money is briefly discussed, to show that money has evolved similarly to the Lamarckian evolution of species. The examination of the history of money helps us justify why electronic money is necessary, and to point out that money will continuously evolve towards Pure Money. The definition of electronic money conducted afterwards, draws the lines within which the model will be proposed. The proposed model is formally constructed and evaluated accordingly with the use of micropayment evaluation frameworks. The model is a hardware based model considering as baseline smart cards with secure co-processors, and allows transactions with cross-challenging. The model is evaluated with respect to technologic, social and economic dimensions, and taking into account the associated computational and storage costs.

"Vi utmanar konventionella förpackningar för en hållbar framtid." BillerudKorsnäs AB bildades år 2012 och inriktar sig mot pappersindustrin. På bruket i Frövi tillverkas vätskekartong för mejeriprodukter samt förpackningskartong, vilket görs med en produktionskapacitet av 470 000 ton/år. För att skapa god kartongkvalitét krävs rätt kemikaliedosering, vilket säkerställs genom provtagning. Genom att investera i ny mätutrustning ges därmed möjligheten till en jämnare mätprocess och därmed bättre styrmöjlighet. Detta examensarbete syftar till jämförelse av mätutrustning för jämnare kemikaliedosering. I denna rapport görs jämförelse av off-och online-utrustning och rutiner vid mätning på olika kartongskikt för att därefter avslutningsvis bedöma resultat och fortsatt arbete för en jämnare kemikaliedosering. Dessa jämförelser påvisar en titreringslösning med för hög koncentration för ett skikt vilket innebär osäkra mätresultat. Detta innebär att titratlösning av lägre koncentration måste komplettera den nuvarande för säkrare mätresultat. / "We challenge conventional packaging for a sustainable future" BillerudKorsnäs AB was formed in 2012 and focuses on the paper industry. At the mill in Frövi they create liquid cartonboard for dairy products and packing cartonboard with a production capacity of 470 000 tonnes/year. For making good quality possible proper chemical dosage is required and to guarantee that water tests has to be made. Investing in new measuring equipment will allow steady measurement process. This project is comparing measurement equipment for a steady chemical dosage. In this report comparing between off-line and on-line measurement equipments and routines when measuring different cartonboard layers. This will help the company in there further work with the process for a steady chemical dosage. The result of the comparisons demonstrate a high concentration of titration solution for one layer which contributes to uncertain results. This means that the company have to use a titration solution of lower concentration as well as the present obtain reliable results.

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2016-07-22T15:28:33Z No. of bitstreams: 1 DanieleMontenegroDaSilvaBarros_DISSERT.pdf: 1628500 bytes, checksum: 727c04430bb87c56670af2632ec1065e (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2016-07-27T21:38:22Z (GMT) No. of bitstreams: 1 DanieleMontenegroDaSilvaBarros_DISSERT.pdf: 1628500 bytes, checksum: 727c04430bb87c56670af2632ec1065e (MD5) / Made available in DSpace on 2016-07-27T21:38:22Z (GMT). No. of bitstreams: 1 DanieleMontenegroDaSilvaBarros_DISSERT.pdf: 1628500 bytes, checksum: 727c04430bb87c56670af2632ec1065e (MD5) Previous issue date: 2015-11-06 / O Programa Telessa?de Brasil Redes, criado em 2007 com o objetivo de fortalecer a Aten??o B?sica e o Sistema ?nico de Sa?de (SUS), utiliza as tecnologias de informa??o e comunica??o para atividades ? dist?ncia relacionadas ? sa?de, possibilitando a intera??o entre profissionais de sa?de e/ou seus pacientes, promovendo a qualifica??o das Equipes de Sa?de da Fam?lia (ESF). O Programa ? embasado por lei, que determina uma s?rie de tecnologias, protocolos e processos aos quais norteiam o trabalho dos N?cleos de Telessa?de na oferta dos servi?os para a popula??o. Entre esses servi?os est? a teleconsultoria, que ? consulta registrada e realizada entre trabalhadores, profissionais e gestores da ?rea de sa?de, por meio de instrumentos de telecomunica??o bidirecional, com o fim de esclarecer d?vidas sobre procedimentos cl?nicos, a??es de sa?de e quest?es relativas ao processo de trabalho. Com a expans?o do Programa em 2011 foi possivel detectar desafios e problemas que abrangem praticamente todos os N?cleos, em escalas diferentes para cada regi?o. Entre esses problemas pode-se listar a heterogeineidade das plataformas, principalmente de teleconsultoria, e a baixa cobertura de internet dos municipios, principalmente no interior do Brasil. Nessa perspectiva, o objetivo deste trabalho ? propor uma arquitetura distribu?da, que utilize computa??o m?vel, para automatizar o processo de submiss?o e resposta de uma teleconsultoria. Essa arquitetura ir? funcionar de forma Off-line e possibilitar? que os dados trafeguem pela internet de forma compressada, para diminuir a necessidade de altas taxas de transmiss?o de dados. Outro ponto da arquitetura, ? a possibilidade de ser utilizada por v?rios N?cleos de Telessa?de, atrav?s de um servi?o externo, que possa ser acoplado atrav?s de uma interface a outras plataforma de teleconsultoria. / The Telehealth Brazil Networks Program, created in 2007 with the aim of strengthening primary care and the unified health system (SUS - Sistema ?nico de Sa?de), uses information and communication technologies for distance learning activities related to health. The use of technology enables the interaction between health professionals and / or their patients, furthering the ability of Family Health Teams (FHT). The program is grounded in law, which determines a number of technologies, protocols and processes which guide the work of Telehealth nucleus in the provision of services to the population. Among these services is teleconsulting, which is registered consultation and held between workers, professionals and managers of healthcare through bidirectional telecommunication instruments, in order to answer questions about clinical procedures, health actions and questions on the dossier of work. With the expansion of the program in 2011, was possible to detect problems and challenges that cover virtually all nucleus at different scales for each region. Among these problems can list the heterogeneity of platforms, especially teleconsulting, and low internet coverage in the municipalities, mainly in the interior cities of Brazil. From this perspective, the aim of this paper is to propose a distributed architecture, using mobile computing to enable the sending of teleconsultation. This architecture works offline, so that when internet connection data will be synchronized with the server. This data will travel on compressed to reduce the need for high transmission rates. Any Telehealth Nucleus can use this architecture, through an external service, which will be coupled through a communication interface.

Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2016-06-13T13:50:41Z No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Davi Delgado Clerot - UFPE.pdf: 1275511 bytes, checksum: 8413259c0fde19c85569221d062625a8 (MD5) / Made available in DSpace on 2016-06-13T13:50:41Z (GMT). No. of bitstreams: 2 license_rdf: 1232 bytes, checksum: 66e71c371cc565284e70f40736c94386 (MD5) Dissertação - Davi Delgado Clerot - UFPE.pdf: 1275511 bytes, checksum: 8413259c0fde19c85569221d062625a8 (MD5) Previous issue date: 2014-04-28 / No âmbito da biometria comportamental, o reconhecimento automático de assinaturas manuscritas off-line se destaca pela boa aceitação em diversos segmentos, tais como Bancos, Cartórios e Imobiliárias. Dentre os fatores que estimulam sua utilização estão a facilidade na aquisição, pois não depende de equipamentos específicos, e seu valor legal ao ser realizada de próprio punho. No intuito de investigar métodos alternativos para realizar sua verificação automática, esta dissertação testa uma abordagem baseada no Coeficiente de Correlação de Pearson. O experimento foi realizado em seis etapas; da primeira à terceira, são utilizadas variações na extração de características, sem o auxílio de um classificador baseado em aprendizado automático. No quarto experimento, foi utilizada uma rede neural artificial como classificador, para efeito de comparação com os resultados anteriores. No quinto experimento, um peso associado ao limiar de resposta utilizado nos experimentos anteriores foi adicionado objetivando minimizar efeitos dos falsos positivos obtidos. No sexto e último experimento, para efeito de comparação com trabalhos relacionados, foi utilizada a base de dados disponibilizada no ICDAR (Conferência Internacional em Reconhecimento e Análise de Documentos) 2011. A configuração empregada nesta etapa, a qual utilizou a base do ICDAR, foi a do melhor experimento realizado dentre os anteriores. Os métodos propostos apresentaram resultados promissores em comparação com os resultados apresentados na literatura. / In the field of behavioral biometrics, automatic off-line handwritten signature recognition stands out for its widespread acceptance in different market segments, such as Banks, Civil Registry Offices and Real State Agencies. Among the reasons why its use is widely stimulated are its ease of acquisition, once it does not depend on specific equipment, and its legal value when it is done by the author’s own handwriting. With the purpose of searching for alternative methods to proceed to its automatic verification, this essay tests out an approach based on Pearson Correlation Coefficient. The experiment was carried out through six steps; from the first to the third ones, there were used variations for feature extraction, without the assistance of a learning classifier. In the fourth experiment, there was used an artificial neural network as a classifier, in order to compare its results with those obtained in the previous tests. In the fifth experiment, a weight associated to the threshold results obtained in the previous experiments was added, so as to minimize the false positive rate. In the sixth and last experiment, for comparison with related essays, there was used the ICDAR (International Conference on Document Analysis and Recognition) 2011 database. The configuration utilized in this last step was the one obtained in the best test among the previous ones. The proposed methods presented promising results compared to others reported in the literature.

No description available.

Instructions for a Walk Off Line engages in a reparative reading of Fluxus and Conceptual artworks, with a focus on the practice of stanley brouwn, to outline a set of strategies for contemporary artists to approach the role of bureaucracy in mediating their relationship with art institutions. This research starts from the observation that modern and contemporary art museums are increasingly invested in inviting underrepresented artists into their spaces without engaging in the necessary structural changes to meet their conditions for being included. Bureaucracy is one of those structural elements that maintains and perpetuates certain norms and excludes those who do not have proximity to them. In the approach to Fluxus and Conceptual works, this thesis relies on intermedia and queer theory to analyse how bureaucratic form, language, and function are appropriated and fused with artistic media to expose normative systems, destabilise them, and deviate from them. stanley brouwn’s Aantal stappen of meters in de richting van diverse steden in the collection of Van Abbemuseum Eindhoven is taken as an exemplary case, as brouwn is known to have a specific set of conditions for the display and dissemination of his work. Situating brouwn’s practice in relation to the strategies of appropriation, exposure, destabilisation and deviation, this research proposes his work and conditions as a relational practice of walking off line. The notion of the line, a recurring formal aspect in brouwn’s work, represents the norm that brouwn and his contemporaries deviate from. The museum staff and the audience are invited into this process through different instructions and conditions for the installation of, and engagement with the work. This thesis demonstrates that these instructions are not static but allow for interpretations and invite playfulness. The strategies in this research are offered in the same way; they are not presented as a single way of walking off line but invite a range of possibilities based on the needs and conditions relevant to the context of working with bureaucracy in the arts today.

För att industrier ska hålla sig tekniskt uppdaterade krävs det att studenter, som så småningom blir personal, får utbildning som strävar efter modernisering. En viktig del inom modernisering i dag är automatisering via exempelvis automatiserad additiv tillverkning och off-line-programmering (OLP) som båda besitter stor potential, inte minst inom tillverkningsindustrin. Dessvärre så förekommer det brist på dokumentation om hur denna process går till steg för steg till färdig produkt, därför ämnar sig denna studie till att försöka täcka denna kunskapslucka genom att tillhandahålla en nybörjarvänlig dokumentation om processerna. Dokumentationen ska kunna bidra som referensverktyg i utbildningssyfte, där användaren kan genom nybörjarvänliga guider följa processen steg-för-steg från CAD-modell i SolidWorks till skapandet av robotbanor via 3D-printerprogrammet Slic3r och genom simuleringsprogrammen RoboDK och MotoSim utföra OLP som leder till simulering av additiv tillverkning. Tillvägagångssättet som tagits fram i denna studie valideras även genom automatiserad additiv tillverkning i verklig robotcell. Olika problem och idéer kring framtida forskning tas även upp i denna studie för att kunna utveckla och optimera processen. / In order for industries to stay technically up-to-date, it is necessary that students, who eventually become staff, receive education that strives for modernization. An important part of modernization today is automation via, for example, automated additive manufacturing and off-line programming (OLP), both of which have great potential, not least in the manufacturing industry. Unfortunately, there is a lack of documentation on how this process goes step by step to the finished product, so this study aims to try to cover this knowledge gap by providing a beginner-friendly documentation on the processes. The documentation should be able to contribute as a reference tool for educational purposes, where the user can through beginner-friendly guides follow the process step-by-step from CAD model in SolidWorks to the creation of robot paths via the 3D printer program Slic3r and through the simulation programs RoboDK and MotoSim perform OLP leading to simulation of additive manufacturing. The approach developed in this study is also validated through automated additive manufacturing in real robot cells. Various problems and ideas about future research are also addressed in this study in order to be able to develop and optimize the process.

Bayesian network (BN) structure learning from data has been an active research area in the machine learning field in recent decades. Much of the research has considered BN structure learning as an optimization problem. However, the finding of optimal BN from data is NP-hard. This fact has driven the use of heuristic algorithms for solving this kind of problem. Amajor recent focus in BN structure learning is on search and score algorithms. In these algorithms, a scoring function is introduced and a heuristic search algorithm is used to evaluate each network with respect to the training data. The optimal network is produced according to the best score evaluated. This thesis investigates a range of search and score algorithms to understand the relationship between technique performance and structure features of the problems. The main contributions of this thesis include (a) Two novel Ant Colony Optimization based search and score algorithms for BN structure learning; (b) Node juxtaposition distribution for studying the relationship between the best node ordering and the optimal BN structure; (c) Fitness landscape analysis for investigating the di erent performances of both chain score function and the CH score function; (d) A classifier method is constructed by utilizing receiver operating characteristic curve with the results on fitness landscape analysis; and finally (e) a selective o -line hyperheuristic algorithm is built for unseen BN structure learning with search and score algorithms. In this thesis, we also construct a new algorithm for producing BN benchmark structures and apply our novel approaches to a range of benchmark problems and real world problem.

近年來手機的普及率日漸增加，手機逐漸成為生活中不可或缺的工具，因此許多生活方式逐漸的偏向由手機端完成，例如:找路不需要再透過地圖,上網查資料不需要再透過電腦，人們逐漸地把實體錢包轉向利用手機支付的電子錢包，像是中國支付寶等支付系統。利用手機當作錢包已經是現今手機發展的主要方向，然而對於手機的安全支付議題也日漸重視，近年來有安全晶片的保護下使用者的手機安全也有一定程度的提升，但是在離線交易的情況下惡意使用者的操作依然是可以欺騙安全晶片並製造出雙重支付的問題。 2016年陳等人提出了一個基於NFC系統的匿名行動付款協定，然而該協定中必須要有銀行端的介入才能執行交易。在本論文中，我們基於陳等人的線上交易協定為基礎下發展了本篇論文的新交易協定，此交易協定可以適用於離線以及線上的環境。 離線環境下的雙重支付行為一直交易的過程中難以預防的攻擊，在本篇論文中我們透過安全晶片、符號化和本論文研究的雜湊鍊來預防雙重支付行為，且能保障使用者在交易過程中的匿名性。 / As the coverage of mobile phone has been constantly increased in recent years, the mobile phones have become an indispensable tool in life. Many ways of lives are gradually done through the mobile terminals, for example: No longer need to find the way through the map or search information through the computer, people have also gradually turned to electronic payment via e-wallets instead of paying via physical wallets, such as AliPay in China. Adopting the mobile phone as a wallet is nowadays the main development direction of mobile phones. Meanwhile, people are paying more and more attention to the topics on the security of mobile payment than before. In recent years, under the protection of secure element, the security of users’ mobile phone has been enhanced to a certain extent. In the case of off-line transactions, malicious users are capable of fooling secure element and making double spending. In 2016, Chen et al. proposed a NFC-Based anonymous mobile payment protocol. In that protocol the transaction can only be executed with the involvement of issuer. In this research, we introduce a new protocol which can support both on-line and off-line transactions. Our protocol is modified from that of Chen et al.’s idea. In our protocol, to prevent a malicious user, we use a secure element which stores sensitive information that cannot be altered by the user. In this way, the cheating behavior of a malicious user can be prevented. On the other hand, by using the token techniques, the anonymity of a user can be achieved from the view of a merchant. In this study, we focus on double spending which can make merchant a lot of cost at off-line transaction. We used hash chain to verify the correctness of transactions and prevent the double spending.

La pratique physique a longtemps été perçue comme le déterminant premier de l’apprentissage du mouvement. Souvent exprimée par l’expression « Vingt fois sur le métier remettez votre ouvrage», cette idée se base sur l’observation qu’une grande quantité de pratique est nécessaire pour maîtriser un geste technique complexe. Bien que l’importance de la pratique physique pour l’apprentissage du mouvement demeure indéniable, il a récemment été démontré que les changements neurobiologiques qui constituent les bases de la mémoire prennent place après la pratique. Ces changements, regroupés sous le terme « consolidation », sont essentiels à la mise en mémoire des habiletés motrices. L’objectif de cette thèse est de définir les processus de consolidation en identifiant certains facteurs qui influencent la consolidation d’une habileté motrice. À l’aide d’une tâche d’adaptation visuomotrice comportant deux niveaux de difficulté, nous avons démontré qu’une bonne performance doit être atteinte au cours de la séance de pratique pour enclencher certains processus de consolidation. De plus, nos résultats indiquent que l’évaluation subjective que l’apprenant fait de sa propre performance peut moduler la consolidation. Finalement, nous avons démontré que l’apprentissage par observation peut enclencher certains processus de consolidation, indiquant que la consolidation n’est pas exclusive à la pratique physique. Dans l’ensemble, les résultats des études expérimentales présentées dans cette thèse montrent que la consolidation regroupe plusieurs processus distincts jouant chacun un rôle important pour l’apprentissage du mouvement. Les éducateurs physiques, les entraineurs sportifs et les spécialistes de la réadaptation physique devraient donc planifier des entrainements favorisant non seulement l’acquisition de gestes moteurs mais également leur consolidation. / Physical practice has long been regarded as the single most determinant factor of motor skill acquisition. Often expressed by the old adage “practice makes perfect,” this idea easily relates to the common observation that extensive practice is necessary to master complex motor skills. Although the importance of physical practice for motor skill learning is undeniable, recent evidence demonstrates that the neurobiological changes that constitute the foundation of memory occur after physical practice. Regrouped under the term “consolidation”, these changes are essential for the memory storage of motor skills. The objective of this thesis was to identify factors that influence motor skill consolidation. Using a visuomotor adaptation task with two levels of difficulty, we showed that a good performance must be attained during practice to trigger certain consolidation processes. In addition, our results indicate that the learner’s subjective evaluation of his/her own performance can also modulate consolidation. Finally, we showed that observation triggers consolidation processes, indicating that consolidation is not exclusive to physical practice. Together, the results presented in this thesis demonstrate that consolidation regroups several distinct processes that each plays an important role for motor skill learning. Physical education teachers, athletic coaches and rehabilitation specialists should therefore plan training schedules favoring not only motor skill acquisition but also motor skill consolidation.