This thesis deals with possible interconnections between two concepts playing a big role in contemporary business and IT world. These concepts are Business Continuity Management and Cloud Computing. In the scope of this thesis there are certain areas identified where both concepts are complement, where Cloud Computing brings new opportunities for Business Continuity Management and where could possible problems arise during particular implementation. From the BCM perspective the impact lies on IT services, from the Cloud Computing perspective the thesis deals especially with security aspects. The thesis is also aimed at the characteristics of higher education and basic differences from commercial sphere. Based on defined differences and identified interconnections between BCM and Cloud Computing, the thesis argues for usage of suitable Cloud Computing solution for higher education regarding Business Continuity improvement. The multi-criterion comparison of several Infrastructure-as-a-Service solutions stems from this analysis focusing on technical, financial, and Business Continuity aspects. The result from this comparison together with conclusions from previous chapters serve as an input for subsequent practical proposal of Cloud Computing solution and its verification against Business Continuity improvement in specific conditions on University of Economics in Prague. The proposal is also represented by strategic map.

International Telemetering Conference Proceedings / October 27-30, 1997 / Riviera Hotel and Convention Center, Las Vegas, Nevada / This paper describes a Smart Sensor Network System for applications requiring sensors connected in a multidrop configuration in order to minimize interconnecting cables. The communication protocol was optimized for high speed data collection. The Smart Sensor Network System was developed with the following goals in mind: cost reduction, reliability and performance increase.

Η παρούσα διπλωματική εργασία πραγματεύεται τη μελέτη, την ανάλυση καθώς και την κατασκευή μιας νέας τοπολογίας για τη διασύνδεση φωτοβολταϊκών (Φ/Β) γεννητριών, μικρής ισχύος, με το ηλεκτρικό δίκτυο των αστικών περιοχών. Η εργασία αυτή εκπονήθηκε στο Εργαστήριο Ηλεκτρομηχανικής Μετατροπής Ενέργειας του Τμήματος Ηλεκτρολόγων Μηχανικών και Τεχνολογίας Υπολογιστών της Πολυτεχνικής Σχολής του Πανεπιστημίου Πατρών. Στόχος της διπλωματικής εργασίας είναι η συμβολή της στον τομέα των Φ/Β μονάδων διεσπαρμένης παραγωγής, με την κατασκευή μιας ηλεκτρονικής διάταξης, η οποία θα χρησιμοποιηθεί για τη διασύνδεση φωτοβολταϊκών (Φ/B) γεννητριών μικρής ισχύος, στο ηλεκτρικό δίκτυο χαμηλής τάσης. Συγκεκριμένα, διερευνάται και κατασκευάζεται ένας υψίσυχνος αντιστροφέας ρεύματος τοπολογίας Flyback, ο οποίος θα είναι κατάλληλος για εφαρμογές «Φωτοβολταϊκών Πλαισίων Εναλλασσόμενου Ρεύματος» (AC-PV Modules), δηλαδή Φ/Β διατάξεων, ηλεκτρικής ισχύος έως 300W, στις οποίες ενσωματώνεται ένας ηλεκτρονικός μετατροπέας συνεχούς τάσης σε μονοφασική εναλλασσόμενη (Micro-inverter). Ιδιαίτερα χαρακτηριστικά του αντιστροφέα που κατασκευάστηκε είναι ο μικρός βαθμός πολυπλοκότητας του κυκλώματος ισχύος με άμεση συνέπεια την υψηλή αξιοπιστία του, η γαλβανική απομόνωση που παρέχει ανάμεσα στη Φ/Β γεννήτρια και το ηλεκτρικό δίκτυο εναλλασσόμενου ρεύματος (Ε.Ρ.), η ικανότητα σημαντικής ανύψωσης της τάσης εισόδου του, ο υψηλός συντελεστής ισχύος, καθώς και ο υψηλός βαθμός απόδοσης (ο οποίος αγγίζει το 94,25%) για ένα ευρύ φάσμα λειτουργίας του. Ο μικρός όγκος και το μικρό βάρος (σε περίπτωση βιομηχανοποίησης), είναι επιπρόσθετα χαρακτηριστικά της συγκεκριμένης τοπολογίας. Αρχικά, αναλύεται διεξοδικά η λειτουργία του αντιστροφέα ρεύματος τοπολογίας Flyback, η οποία έχει αναπτυχθεί στη Διδακτορική Διατριβή του Αναστάσιου Χ. Κυρίτση, «Βέλτιστος Σχεδιασμός Υψίσυχνου Μονοφασικού Αντιστροφέα για τη Διασύνδεση Φωτοβολταϊκών Συστημάτων Μικρής Ισχύος με το Δίκτυο Χαμηλής Τάσης». Ταυτόχρονα, διερευνώνται δύο διαφορετικές τεχνικές ελέγχου, οι οποίες οδηγούν σε διαφορετικές καταστάσεις λειτουργίας (λειτουργία σε ασυνεχή αγωγή, DCM - λειτουργία στο όριο μεταξύ συνεχούς και ασυνεχούς αγωγής, BCM) και εξασφαλίζουν τη δημιουργία εναλλασσόμενου ημιτονοειδούς ρεύματος συμφασικού με την τάση του ηλεκτρικού δικτύου. Αναπτύσσονται τα κυκλώματα ελέγχου του αντιστροφέα, ενώ παρουσιάζεται ένας αποτελεσματικός τρόπος μέτρησης του υψίσυχνου διακοπτικού ρεύματος που διαρρέει τα τυλίγματα του μετασχηματιστή του αντιστροφέα. Τέλος, πραγματοποιείται η κατασκευή της διάταξης στο εργαστήριο, με σκοπό τη διεξαγωγή πειραματικών μετρήσεων για την επιβεβαίωση και αξιολόγηση της θεωρητικής ανάλυσης. / This degree thesis deals with the study, the analysis and the manufacture of a new topology that will be used for the interconnection of small photovoltaic (PV) generators with the electric network of urban regions. This work was conducted in the Laboratory of Electromechanical Energy Conversion, Department of Electrical and Computer Engineering, School of Engineering, University of Patras. The goal of the present thesis is to contribute in the sector of Dispersed Power Generation PV systems, with the development of an electronic device that will be used for the interconnection of small photovoltaic (PV) generators with the low voltage electric network. Specifically, a high frequency current source Flyback inverter is investigated and manufactured, that will be suitable for “Alternative Current Photovoltaic Modules” (AC-PV Modules) applications. An AC-PV Module is the combination of a single PV module (whose power production varies under 300W) and a single-phase power electronic micro-inverter in a single electrical device. Special characteristics of the inverter are the simple power electronic circuit structure, having high reliability as an immediate consequence, the electrical isolation provided between the PV generator and the electric network, the high power factor and the high efficiency (reaching 94.25%) for a wide range of its power. Moreover, small volume and weight are particular characteristics, attributes very important considering its applications (incorporation in PV generators that will be placed in aspects or roofs of buildings). For this topology - whose theory is in the Ph.D. thesis of A. Ch. Kyritsis “Optimum Design of a High Frequency Singe - Phase Inverter for the Interconnection of Small Power PV Systems with the Low Voltage Network” developed - two different control techniques were investigated, leading to different operation modes (Discontinuous Conduction Mode - DCM, Boundary between Continuous and Discontinuous Mode - BCM) and ensuring alternative sinusoidal current, in phase with the electric network voltage. Simultaneously, their suitability is studied for different power levels. Moreover, the control circuits of the inverter were developed and an effective way of measuring the high - frequency switching currents of the inverter’s transformer is presented. Last but not least, the design of the whole system is completed in the laboratory, in order to carry out the experimental measurements required, to confirm and evaluate the studied theory.

PhD (Business Management) / Department of Business Management / Contemporary cloud-based computing is crucial for the efficient delivery of ICT systems to users, as well as for versatile disaster recovery and business continuity management (BCM) platforms. Based on the need for efficient and fault-tolerant port operations, this study proposes a cloud-based business continuity framework (BCM) for the container terminal operations (CTO) in South Africa. The study examined the impact of ICT systems and services on Container Terminal Operations (CTO); determined Critical Business Functions in operations that must stay operational and analysed the impact of the unavailability of ICT systems and services on critical operations. This empirical study employed both quantitative and qualitative research designs and collecting data through self-constructed and self-administered questionnaires and interviews. Quantitative data was analysed using the IBM Statistical Package of Social Science (SPSS) Version 23 while qualitative data was analysed through thematic analysis of interviews. Results show that to realize effective organizational resilience using BCM, three insights, as underlying mechanisms for assimilating cloud computing in BCM can be inferred: the first is that a digitalized BCM architecture ‘fits’ the cloud computing model. The specific BCM characteristics that befits cloud computing are continuous data processing; continuous data access and delivery; multi-platform data access; always – on ICT Services; and better decision making. Secondly, the cloud computing model is a ‘viable’ model that can contribute to managing complex organizations characterized by business units that are highly differentiated in terms of size, structure, ICT and investment levels. For such complex organizations, viability is visible in terms of how the multi-units can harness collective intelligence (CI) for more effective BCM. Collective intelligence, as a form of universally distributed intelligence that is constantly enhanced, coordinated in real time, and which results in effective mobilization of organizational competence, is a core organizing metaphor for achieving BCM in a complex organization. Lastly, to realize BCM, underpinned by greater digitalization of BCM and harnessing of CI; there is need for rethinking strategy towards adoption of an ‘Intelliport strategy’ or ‘smart’ BCM for ports, currently intertwined with the notion of the 4IR. That the ‘smart’ nature of BCM require the assimilation of 4IR technologies that enable ubiquitous presence and real time information regarding organizational processes. Adopting an ‘Intelliport strategy’ is likely to have two main implications for BCM and practice: the first is linked to the development of a circular economy, in which aggregation of BCM activities can enhance sustainable development of the seaports; and secondly, adoption of a cloud computing model that can result in the enhancement of business growth of the units promote collaborative problem solving and decision making in BCM. / NRF

Title: Monitoring of influence of individual segments of a teaching unit of physical education on fitness of girls from seventh grade of elementary school. Aim: The aim of the empirical part is to monitor the proportional representation of the motoric activities during the time given in the lessons of physical education of the seventh grade girls, and along with the chosen methods of testing of these individuals, to prove or disprove possible influence of the composition of the P.E. lessons on the chosen segments of their fitness. Methods: Various methods were used for testing the considered sample. These were the standardized motoric tests (intense forward bend when sitting, place-jump with legs together, endurance in a pull-up, hand grip) which investigate the chosen segments of the fitness. Another method used was the bioimpedance which measures the parameters of body composition. The data were recollected quantitatively and the results were also processed quantitatively by means of statistic parameters, such as arithmetic mean, variation span and determinative deviation. Results: From the results of the work emerged that as far as the chosen motoric activities and their influence on the chosen segments of the fitness are concerned, during the time given only the segment of flexibility in...

Este trabalho propõe diretrizes de Gestão de Continuidade de Negócios (GCN) para a tecnologia de Ensino Presencial Mediado por Recursos Tecnológicos (EPMRT), que conta, para a realização de suas atividades acadêmicas, com um sistema complexo para transmissão de aulas e exige um grande esforço para o controle das suas operações e das respostas coordenadas diante de erros, falhas e defeitos, ou quaisquer incidentes que resultem na interrupção das suas atividades. A manutenção deste ambiente tecnológico está relacionada com a implantação de processos eficientes de gestão de risco e do ciclo de melhoria contínua em ambiente de TI com a adoção do ITIL® e através da construção das diretrizes de um Plano de Continuidade de Negócios (PCN), documentado por meio de elementos da UML, utilizando a Análise de Impacto nos Negócios (BIA), a Avaliação dos Riscos (RA) e os atributos de Dependabilidade para os elementos tecnológicos: disponibilidade, confiabilidade, segurança, confidencialidade, integridade e manutenibilidade. / This paper proposes guidelines for Business Continuity Management (BCM) that uses a technology called Education System Mediated Classroom Resources Technology (SPMRT), which needs, for the achievement of their academic activities, a complex system for transmission of lessons and requires a great effort to control their operations and coordinated fast responses in case of errors, faults, attacks and defects, or any incidents that result in the disruption of their activities. Maintaining this technological environment is related to the implementation of efficient processes of risk management and continuous improvement cycle in the IT environment with the adoption of ITIL® and through the construction of a Business Continuity Plan (BCP), documented by elements of the UML using the Business Impact Analysis (BIA), Risk Assessment (RA) and the attributes of Dependability: availability, reliability, security, confidentiality, integrity and maintainability.

Este trabalho propõe diretrizes de Gestão de Continuidade de Negócios (GCN) para a tecnologia de Ensino Presencial Mediado por Recursos Tecnológicos (EPMRT), que conta, para a realização de suas atividades acadêmicas, com um sistema complexo para transmissão de aulas e exige um grande esforço para o controle das suas operações e das respostas coordenadas diante de erros, falhas e defeitos, ou quaisquer incidentes que resultem na interrupção das suas atividades. A manutenção deste ambiente tecnológico está relacionada com a implantação de processos eficientes de gestão de risco e do ciclo de melhoria contínua em ambiente de TI com a adoção do ITIL® e através da construção das diretrizes de um Plano de Continuidade de Negócios (PCN), documentado por meio de elementos da UML, utilizando a Análise de Impacto nos Negócios (BIA), a Avaliação dos Riscos (RA) e os atributos de Dependabilidade para os elementos tecnológicos: disponibilidade, confiabilidade, segurança, confidencialidade, integridade e manutenibilidade. / This paper proposes guidelines for Business Continuity Management (BCM) that uses a technology called Education System Mediated Classroom Resources Technology (SPMRT), which needs, for the achievement of their academic activities, a complex system for transmission of lessons and requires a great effort to control their operations and coordinated fast responses in case of errors, faults, attacks and defects, or any incidents that result in the disruption of their activities. Maintaining this technological environment is related to the implementation of efficient processes of risk management and continuous improvement cycle in the IT environment with the adoption of ITIL® and through the construction of a Business Continuity Plan (BCP), documented by elements of the UML using the Business Impact Analysis (BIA), Risk Assessment (RA) and the attributes of Dependability: availability, reliability, security, confidentiality, integrity and maintainability.