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16 Research products, page 1 of 2

  • Rural Digital Europe
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  • 2018-2022
  • European University of Technology

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  • Open Access English
    Authors: 
    Themistocleous, Kyriacos; Danezis, Chris; Gikas, Vassilis;
    Country: Cyprus

    Nowadays, assessing geo-hazards in cultural heritage sites in most cases takes place after the hazard has occurred. Monitoring structural and ground deformation resulting from geo-hazards facilitates the early recognition of potential risks and encourages effective conservation planning. This paper presents an integrated ground deformation monitoring approach based on the combined use of satellite SAR data, campaign-based GPS/GNSS observations, and aerial images from UAVs within the Choirokoitia UNESCO World Heritage Site in Cyprus. The Neolithic settlement of Choirokoitia is one of the most important prehistoric sites in the Eastern Mediterranean. The site is located on a steep hill, which makes it vulnerable to rock falls and landslides. As part of the PROTHEGO project, a series of field measurements were collected at the Choirokoitia site and compared against satellite SAR data to verify kinematic behavior of the broader area and to assist in monitoring potential geo-hazards over time. The results obtained indicate displacement rates of the order of 0.03 m/year. These results indicate that ground deformation should be monitored in the area surrounding the Choirokoitia using long-term, low-impact monitoring systems such as SAR images and UAV-based and geodetic techniques. The combination of such monitoring technologies can be compared to monitor and assess potential geo-hazards on archeological sites with increased accuracy.

  • Open Access
    Authors: 
    Nzembayie, Kisito Futonge;
    Publisher: Technological University Dublin
    Country: Ireland

    Digitisation has ushered in a new era of value creation where cross border data flows generate more economic value than traditional flows of goods. The powerful new combination of digital and traditional forms of innovation has seen several new industries branded with a ‘tech’ suffix. In the education technology sector (EdTech), which is the industry context of this research, digitisation is driving double-digit growth into a projected $240 billion industry by 2021. Yet, despite its contemporary significance, the field of entrepreneurship has paid little attention to the phenomenon of digital entrepreneurship. As several scholars observe, digitisation challenges core organising axioms of entrepreneurship, with significant implications for the new venture creation process in new sectors such as EdTech. New venture creation no longer appears to follow discrete and linear models of innovation, as spatial and temporal boundaries get compressed. Given the paradigmatic shift, this study investigates three interrelated themes. Firstly, it seeks to determine how a Pure Digital Entrepreneurship (PDE) process develops over time; and more importantly, how the journey challenges extant assumptions of the entrepreneurial process. Secondly, it strives to identify and theorise the deep structures which underlie the PDE process through mechanism-based explanations. Consequently, the study also seeks to determine the causal pathways and enablers which overtly or covertly interrelate to power new venture emergence and performance. Thirdly, it aims to offer practical guidelines for nurturing the growth of PDE ventures, and for the development of supportive ecosystems. To meet the stated objectives, this study utilises an Insider Action Research (IAR) approach to inquiry, which incorporates reflective practice, collaborative inquiry and design research for third-person knowledge production. This three-pronged approach to inquiry allows for the enactment of a PDE journey in real-time, while acquiring a holistic narrative in the ‘swampy lowlands’ of new venture creation. The findings indicate that the PDE process is differentiated by the centrality of digital artifacts in new venture ideas, which in turn result in less-bounded processes that deliver temporal efficiencies – hence, the shorter new venture creation processes than in traditional forms of entrepreneurship. Further, PDE action is defined by two interrelated events – digital product development and digital growth marketing. These events are characterised by the constant forking, merging and termination of diverse activities. Secondly, concurrent enactment and piecemeal co-creation were found to be consequential mechanisms driving temporal efficiencies in digital product development. Meanwhile, data-driven operation and flexibility combine in digital growth marketing, to form higher order mechanisms which considerably reduce the levels of task-specific and outcome uncertainties. Finally, the study finds that digital growth marketing is differentiated from traditional marketing by the critical role of algorithmic agencies in their capacity as gatekeepers. Thus, unlike traditional marketing, which emphasises customer sovereignty, digital growth marketing involves a dual focus on the needs of human and algorithmic stakeholders. Based on the findings, this research develops a pragmatic model of pure digital new venture creation and suggests critical policy guidelines for nurturing the growth of PDE ventures and ecosystems.

  • Open Access
    Authors: 
    Adesi, Michael;
    Publisher: Technological University Dublin
    Country: Ireland

    The construction industry contributes significantly to the socio-economic development of nations through infrastructure development, and job creation culminating into the growth of Gross Domestic Product (GDP). Quantity Surveying Professional Service Firms (QSPSFs) play a critical role in the construction industry by ensuring that projects are delivered within cost, required quality and duration by providing technical and knowledge-intensive services to clients, contractors and stakeholders. Irish QSPSFs are facing challenges such as tender price inflation, intense competition, a skills shortage and disruptive technology. These challenges coupled with the cyclicality of the sector create a turbulent business environment for Irish QSPSFs, yet there remains a paucity of empirical evidence pertaining to how strategic decisions are made by these firms. Strategic planning is critical to addressing the challenges confronting business organisations such as the Irish QSPSFs; however, to date strategic planning has focused to a greater extent on manufacturing, oil and gas, retail, consumer products and light manufacturing, whereas there remains limited empirical investigation within the construction industry. This study aims to address this gap by examining the strategic decision-making process of Irish QSPSFs operating in the changing environment of the construction industry. What sets the research apart is that a Dynamic Capabilities (DC) perspective has been used with focus on sensing; seizing; and transformation, culminating into its integration into the development of a strategic decision-making framework. This study is entrenched in the pragmatist philosophical stance with emphasis on the positivist and interpretivist position and adopts mixed method by using quantitative and qualitative approaches over two phases. The first phase involves a survey administered with support from the Society of Chartered Surveyors Ireland (SCSI) to 350 member practices whereby a single senior Quantity Surveyors (QS) in each practice was invited to participate. Seventy-two usable survey questionnaires completed by respondents were prepared for data analysis. The second phase of the research comprised of interview with ten chief executives or managing directors of Irish QSPSFs. The study found the most preferred strategic choice at the corporate level of QSPSFs as the expansion of services to new markets and sectors. At the business level, the investigation discovered the differentiation of services as the main strategic choice of QSPSFs. Furthermore, participation in strategic decision-making is very critical to the success of strategy formulation in organisations. This study identifies the factors that drive participation in strategic decision-making as the knowledge and competence of staff; personality traits; and the ability of people to make decision at the operational level of the organisation. The investigation also found that strategic change has occurred in QSPSFs over the past ten years. This strategic change is attributable to turbulent environmental conditions such as economic recession, in particular reference to the prolong economic recession 2008-2013. The investigation identified the specific strategic changes that occurred in QSPSFs as growth and expansion into new markets; agglomeration, and changes in the ownership and management structure. The negative and positive impacts of economic recession on QSPSFs have also been identified in this investigation. For instance, a radical shift in strategic response from being proactive to reactive; and self-preservation of ownership structure are the ii adverse effects of economic recession identified by the study while knowledge acquisition; and risk profiling for identification and capturing of opportunities are the positive impacts of economic recession. The study found significant statistical evidence to confirm a strong relationship between the turbulent business environment and the strategic decision-making process characteristics of QSPSFs. A strategic decision-making framework was developed on the basis of field work undertaken which was subsequently validated by respondent practices. The framework is the first of its kind pertaining to construction PSFs.

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    The aim of this paper was the observation of asphalt surfaces using Remote Sensing techniques like the spectrometer, and digital images since they provide all the information that is needed to identify the damages that occurred due to time and the vehicle traffic. The main idea was to study various asphalt surfaces with damages caused by different factors (e.g. time, traffic) in the area of Limassol. However, because of the current situation this was not possible. Thus, the thesis was conducted based on previous studies. The previous studies refer to the damages that were caused mainly because of aging so they were divided based on the instruments that were used into the following categories: identification of damages using a spectrometer, identification of damages using a camera, and identification of damages using a spectrometer and a camera. The results showed that there were some differences in the asphalt surfaces that were studied. Specifically, in most of the previous studies errors were occurred because of some values that were removed for a better comparison of the results. Also, information about the asphalt’s aging were extracted based on their spectral signature. Η παρούσα μελέτη διεξήχθη με στόχο την παρακολούθηση των επιφανειών της ασφάλτου με τη βοήθεια της Τηλεπισκόπησης όπως το φασματοραδιόμετρο καθώς και τις ψηφιακές εικόνες, αφού πλέον μπορούμε πιο εύκολα να παρακολουθήσουμε τις φθορές της ασφάλτου που προκαλούνται είτε από τη μεγάλη ηλικία τους είτε από τη μεγάλη κυκλοφορία των οχημάτων. Το δείγμα της συγκεκριμένης μελέτης θα αποτελούσαν επτά διαφορετικοί δρόμοι της επαρχίας Λεμεσού με διαφορετικές συνθήκες ο καθένας ( ηλικία, κυκλοφορία). Δυστυχώς όμως λόγω της επικρατούσας κατάστασης αυτό δεν κατέστη εφικτό. Συνεπώς η πτυχιακή εργασία βασίστηκε σε άλλες μελέτες που είχαν πραγματοποιηθεί στο παρελθόν από διάφορους ερευνητές. Όλες αυτές οι μελέτες αναφέρονται στη γήρανση και στις φθορές γι’αυτό και χωρίστηκαν με βάση τα όργανα που χρησιμοποίησαν για να τις πραγματοποιήσουν με αποτέλεσμα να διαμορφωθούν ως εξής: εύρεση γήρανσης με φασματόμετρο, εύρεση γήρανσης με κάμερα και εύρεση γήρανσης με φασματόμετρο και κάμερα. Τα συμπεράσματα που προέκυψαν από τις πιο πάνω μελέτες ήταν ότι υπήρξαν κάποιες διαφορές στα ασφαλτικά οδοστρώματα. Πιο συγκεκριμένα διαφάνηκε ότι σε αρκετές μελέτες δεν έλειπαν τα σφάλματα με αποτέλεσμα κάποιες ακραίες τιμές να αφαιρούνται από τη φασματική υπογραφή ώστε να υπάρχει μια καλύτερη σύγκριση των αποτελεσμάτων. Ακόμη μέσα από τη φασματική υπογραφή παρατηρείται ότι βγαίνουν κάποια συμπεράσματα για τη συμπεριφορά της γήρανσης της ασφάλτου σε διάφορους παράγοντες. Completed

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    This paper presents the various imperfections (problems) that can occur on asphalt roads giving a little explanation for each. In addition, research has been done by other scientists in finding problems using different remote sensing techniques that can show the problems and various imperfections of asphalt pavements, mainly comparing their spectral signatures taken by each one separately, but also presenting the method and the instruments used. The research that I did on various roads using remote sensing techniques and mainly a wavelength spectrometer from 350nm to 2500nm is presented. Also presented are the spectral signatures extracted from the measured pavements, as well as the spectral signatures created knowing the percentages of imperfections they contain and the percentage of asphalt. At the same time, is presented on how these percentages can be perceived by three different satellites which are Landsat 8, Spot 7, World View 3 and expressed in square centimeters. My results and the conclusions drawn from the research are presented regarding the differences that asphalts may have, either due to the age difference of construction or due to the different problems that everyone may have, but at the same time their different imperfections. Reference to the spectral signatures created on how they can change the spectral signature of pure asphalt and are explained. This research is needed to get better results. In conclusion, the results showed that there are differences between the spectral signatures of the asphalts that depend on the year of construction but also on the imperfections (problems) that each presented separately. Spectral signatures have shown that not all imperfections can be seen through their reflectivity. Specific imperfections are obvious, and cause changes in the spectral signature of each pavement separately, which can be visible from satellites. Η παρούσα εργασία παρουσιάζει τις διάφορες ατέλειες(προβλήματα) που μπορούν να εμφανιστούν στα ασφαλτικά οδοστρώματα δίνοντας μια μικρή επεξήγηση για το καθένα. Επιπρόσθετα γίνεται αναφορά σε έρευνες που έγιναν από άλλους επιστήμονες στην ανεύρεση των προβλημάτων χρησιμοποιώντας διαφορετικές τεχνικές τηλεπισκόπησης οι οποίες μπορούν να δείξουν τα προβλήματα και τις διάφορες ατέλειες των ασφαλτικών οδοστρωμάτων συγκρίνοντας κυρίως τις φασματικές υπογραφές τους που λήφθηκαν από το καθένα ξεχωριστά, αλλά και παρουσιάζοντας τη μεθοδολογία και τα όργανα που χρησιμοποιήθηκαν. Παρουσιάζεται η έρευνα που έγινε από εμένα σε διάφορους δρόμους χρησιμοποιώντας τεχνικές τηλεπισκόπησης και κυρίως σπεκτροραδιόμετρο μήκους κύματος από 350nm μέχρι 2500nm. Επίσης παρουσιάζονται οι φασματικές υπογραφές που εξάχθηκαν από τα οδοστρώματα που μετρήθηκαν ,καθώς επίσης και οι φασματικές υπογραφές που δημιουργήθηκαν γνωρίζοντας τα ποσοστά ατελειών που περιέχουν αλλά και το ποσοστό ασφάλτου. Παράλληλα παρουσιάζεται ένα μικρό κομμάτι για το πώς μπορούν τα συγκεκριμένα ποσοστά να γίνουν αντιληπτά από τρις διαφορετικούς δορυφόρους οι οποίοι είναι οι Landsat 8 , Spot 7 , WorldView 3 και να εκφραστούν σε τετραγωνικά εκατοστά. Παρουσιάζονται τα αποτελέσματα μου και τα συμπεράσματα που εξάχθηκαν μέσα από την έρευνα όσο αφορά τις διαφορές που μπορεί να έχουν οι άσφαλτοι είτε λόγω διαφοράς ηλικίας κατασκευής είτε λόγω των διάφορων προβλημάτων που μπορεί να έχει ο καθένας , αλλά ταυτόχρονα και των διαφορετικών ατελειών τους .Γίνεται και αναφορά στις φασματικές υπογραφές που δημιουργήθηκαν για το πώς μπορούν να μεταβάλουν την φασματική υπογραφή του καθαρού ασφάλτου και επεξηγούνται. Το συγκεκριμένο κομμάτι αξίζει να σημειωθεί ότι χρειάζεται περισσότερη έρευνα με σκοπό να εξαχθούν καλύτερα αποτελέσματα. Εν κατακλείδι τα αποτελέσματα έδειξαν ότι υπάρχουν διαφορές μεταξύ των φασματικών υπογραφών των ασφάλτων που εξαρτώνται από το έτος κατασκευής αλλά και από τις ατέλειες(προβλήματα) που παρουσιάζει το καθένα ξεχωριστά. Οι φασματικές υπογραφές έδειξαν ότι δεν μπορούν όλες οι ατέλειες να είναι εμφανές μέσω της ανακλαστικότητας τους . Συγκεκριμένες ατέλειες που είναι εμφανές μέσω της ανακλαστικότητας τους , προκαλούν αλλαγές στην φασματική υπογραφή κάθε οδοστρώματος ξεχωριστά .Αυτές οι ατέλειες μπορούν να είναι εμφανές και από δορυφόρους. Completed

  • Open Access Greek
    Publisher: Τμήμα Πολυμέσων Και Γραφικών Τεχνών, Σχολή καλών και εφαρμοσμένων τεχνών, Τεχνολογικό Πανεπιστήμιο Κύπρου
    Country: Cyprus

    Last decade, there is a rapid growth in the development of the technology sector, as an aftermath of seeking solutions on technical problems. The use of technology, seen through this research, also applies to the digitization of traditional embroideries. Specifically, this can be done with the use of a laser cutter machine. The importance of this new technology, lies in the fact that the information is accurately scanned, so it can be then used for storing, processing or reprinting. The purpose of this research is the digitization of traditional embroideries, using a laser cutter. Secondly, the purpose is the propulsion of Cyprus culture and the manufacture of a final dressing using digital media. In order to carry out this work, a careful observation has been made of how wearers are made and the materials are used. A survey of the woven textiles of Cyprus followed, to create some patterns that arise in particular from the Lefkaritika and Foithkiotika textiles of Cyprus. Using the illustrator program, a digital recreation of the patterns mentioned and printing in different fabrics was made in order to decide the most appropriate and durable fabric. The finding of this work has shown that replication of particular patterns is possible in felt and leatherette. Leatherette though, has been characterized as the most suitable fabric, because it can be found in many applications. Τα τελευταία χρόνια παρατηρείται ραγδαία ανάπτυξη στο τομέα της τεχνολογίας, ως επακόλουθο αναζήτησης λύσεων σε τεχνικά προβλήματα. Η χρήση της τεχνολογίας, φαίνεται μέσα από αυτή την έρευνα να έχει εφαρμογή και στην ψηφιοποίηση παραδοσιακών κεντημάτων. Συγκεκριμένα, είναι ένας νέος τρόπο εφαρμογής με την χρήση μηχανήματος laser cutter. Η σημαντικότητα αυτής της τεχνολογίας έγκειται στο ότι οι πληροφορίες καταγράφονται με ακρίβεια, με απώτερο σκοπό την αποθήκευση, επεξεργασία και ανατύπωση. Σκοπός της παρούσας έρευνας, είναι η ψηφιοποίηση παραδοσιακών κεντημάτων με την χρήση laser cutter. Δευτερεύοντος, σκοπός είναι η προώθηση της κυπριακής κουλτούρας, καθώς επίσης και η δημιουργία τελικής ενδυμασίας μέσω των ψηφιακών μέσων. Για τη διεκπεραίωση της παρούσας εργασίας, χρειάστηκε ενδελεχής παρατήρηση στον τρόπο παρασκευής υφαντών και τη υλικά χρησιμοποιούνται. Ακολούθησε μια έρευνα για τα διάφορα υφαντά της Κύπρου για να δημιουργηθούν κάποια μοτίβα που προκύπτουν, συγκεκριμένα από τα λευκαρίτικα και φιθκιώτικα υφαντά της Κύπρου. Έπειτα, με την χρήση προγράμματος illustrator έγινε η ψηφιακή δημιουργία των πιο πάνω μοτίβων και εκτύπωση τους σε διάφορα υφάσματα για να αποφασιστεί το καταλληλότερο ύφασμα ως προς την ανθεκτικότητα τους. Τα ευρήματα αυτής της εργασίας έδειξαν ότι η ανατύπωση συγκεκριμένων μοτίβων μπορεί να γίνει σε τσόχα και δερματίνη. Η δερματίνη χαρακτηρίσθηκε όμως ως καταλληλότερο ύφασμα για το λόγο ότι μπορεί να βρεθεί σε περισσότερες εφαρμογές Completed

  • Open Access English
    Authors: 
    Lazarou, Marina;
    Publisher: Department of Communication and Internet Studies, Faculty of Communication and Media Studies, Cyprus University of Technology
    Country: Cyprus

    Considering the needs and demands of contemporary society, this study follows a technological approach. The use of technology and precisely the Internet of Things (IoT), flourishes among miscellaneous sectors due to the innumerable benefits that it grants. It plays a fundamental role in creating more efficient operations, as well as reshaping and facilitating people’s everyday lives. The current thesis focuses on the implementation of IoT technology in retail stores. It pursues an experimental methodological strategy which involves qualitative data. Specifically, through the literature review and interviews which were materialized, the tracking process and facilitation of garments within retail environments, were proven to have been significantly lacking. These processes noticeably influence customers’ service, as well as their experience and satisfaction. Hence, the development of a smart fitting room aims to enhance these segments and boost the store’s functional operation. Briefly, a smart fitting room is the evolution of the stores’ traditional changing room. The basic cabin is transformed to an enhanced consumer service environment, through the networked software and devices provided by the IoT ecosystem. Completed

  • Open Access
    Authors: 
    Joshi, Kompal;
    Publisher: Technological University Dublin
    Country: Ireland

    Post-harvest life of fresh produce is limited due to high metabolic activity and microbial spoilage. Modified atmosphere packaging (MAP) has proven to be one of the most effective techniques to extend the shelf life of fresh produce commercially. Obtaining of an optimum concentration of oxygen and carbon dioxide inside the package depends upon the product properties, the environmental conditions of the cold chain, the permeable film, some of which are subjected to natural variability during the food distribution chain. This variability may generate produce that is out of specification that will lead to food waste. Uncertainty analysis of this problem may lead to relevant interventions to prevent these losses. The hypothesis of this work was to create a mathematical model that predicts key quality factors for MAP packaged fresh products in the supply chain distribution, which will help to assess the food losses in relation to quality thresholds. The model developed simulated the respiration rate as function of O2 and CO2 concentration and produce temperature using Michaelis-Menten equations. The exchange of gases (O2, CO2) and water vapour between the fruit surface, package atmosphere and external atmosphere was modelled taking into account the process of transpiration and condensation. In the transpiration model, the fresh produce surface was assumed to be perfectly saturated and the energy of respiration was used to evaporate surface water. Temperature changes in the headspace due to metabolic heat, convective heat transfer and heat exchange by gas transmission through the package were accounted for. The quality attributes of fresh produce included weight loss and colour change (L, a, and b values) for mushroom, from Botrytis and its fermentative activity for strawberry and weight loss and spoilage for tomato. ii These conditions were simulated for real and variable i) export cold chain and ii) retail display storage to evaluate the effect of cold chain variability (temperature and relative humidity) on the quality of fresh produce and associated waste generation. The prediction of propagation of biological variance on the quality of fresh produce during storage was obtained using a mathematical model. Sensitivity analysis of the stochastic MAP model pointed out the influence of input parameters on the quality of fresh produce. The conclusions of the study showed that the toolbox developed is able to interpret cold chain data: 1) mathematical prediction of quality; 2) simulation of cold chain conditions allowing for different variability components; 3) estimation of waste generation kinetics based in all quality criteria and thresholds; 4) sensitivity analysis to identify the most sensitive technological parameters; and 5) identification of interventions that affect the benchmarked technological parameters.

  • Open Access Greek
    Publisher: Department of Agricultural Sciences, Biotechnology and Food Science, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology
    Country: Cyprus

    During the last decades, there has been an increasing number of examples of drone applications in many areas of human activity such as geoinformatics, research, rescue, defence ets. This innovation easily affected the agricultural sector. It is providing it a completely new framework and equipping it with tools that empower and enable it to face the challenges of modern reality. The purpose of this study is, through the literature review, is to present applications of UAVs adopted by Precision Agriculture. First there is a brief reference to the history of drones. Their applications which are developed in agriculture as well as in greenhouses also are referred. The study continues to present the EU policy on the quality of agricultural products and how this policy is related to Precision Agriculture. It is also negotiating restrictions arising from the use of drones’ legislation as well as challenges that farmers may face using them. Finally, reference is made to examples of countries that already intergraded UAVs. A brief reference is made to Cyprus too as literature is very poor on this subject. The last chapter deals with conclusions drawn from the literature review. The main conclusion that emerges from this paper is that the agricultural communities and in general all those involved in the field of agricultural production worldwide, in their effort for modernization include tools and ICT technologies that strengthen decisionmaking processes for the benefit of their businesses. Drones seem to be gaining a very important place as tools in what we call precision agriculture despite all the limitations and challenges that exist. Τις τελευταίες δεκαετίες υπήρξε πρωτοφανής αύξηση των εφαρμογών με μη επανδρωμένα αεροσκάφη (ΜΕΑ), σε διάφορους τομείς όπως η γεωπληροφορική, έρευνα και διάσωση, άμυνα κλπ. Αυτή η καινοτομία ήταν φυσικό να εισβάλει και στον τομέα της γεωργίας δίνοντας της ένα εντελώς καινούριο πλαίσιο με εργαλεία που την ενδυναμώνουν και της δίνουν την δυνατότητα να αντιμετωπίσει τις προκλήσεις της σύγχρονης πραγματικότητας. Σκοπός αυτής της εργασίας είναι μέσα από την ανασκόπηση της βιβλιογραφίας να παρουσιάσει εφαρμογές των ΜΕΑ που υιοθετούνται από την Γεωργία Ακριβείας. Γίνεται αρχικά μια σύντομη αναφορά στην ιστορία των ΜΕΑ (drones) και αναπτύσσονται στην συνέχεια οι εφαρμογές τους στην Γεωργία καθώς και στα Θερμοκήπια. Παρουσιάζεται επίσης η πολιτική της ΕΕ για την ποιότητα των αγροτικών προϊόντων και πώς αυτή η πολιτική σχετίζεται με την Γεωργία Ακριβείας. Ακολούθως διαπραγματεύεται περιορισμούς που προκύπτουν από την νομοθεσία χρήσης των ΜΕΑ καθώς και προκλήσεις που πιθανόν να αντιμετωπίζουν οι γεωργοί στην χρήση των ΜΕΑ. Τέλος γίνεται αναφορά σε παραδείγματα χωρών που έχουν ήδη εντάξει τα ΜΕΑ και σύντομη αναφορά και στην Κύπρο. Το τελευταίο κεφάλαιο αφορά σε συμπεράσματα που προκύπτουν μέσα από την ανασκόπηση της βιβλιογραφίας. Το κυριότερο συμπέρασμα που προκύπτει από αυτήν την εργασία είναι ότι οι γεωργικές κοινότητες και γενικότερα όλοι όσοι ασχολούνται με τον τομέα της αγροτικής παραγωγής παγκοσμίως, στην προσπάθειά τους για εκσυγχρονισμό εντάσσουν στην φαρέτρα τους εργαλεία και τεχνολογίες οι οποίες ενδυναμώνουν τις διαδικασίες λήψης αποφάσεων προς όφελος των επιχειρήσεών τους. Τα ΜΕΑ, διαθέτουν τέτοιες εφαρμογές και φαίνεται να κερδίζουν μια πολύ σημαντική θέση ως εργαλεία σε αυτό που ονομάζουμε Γεωργίας Ακριβείας παρ΄ όλους τους περιορισμούς και τις προκλήσεις που υπάρχουν. Completed

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    One of the environmental problems that has been occurring at a very high rate in recent decades is the forest fire. Forests are undoubtedly a renewable natural resource, which provides both environmental, economic and also cultural and social development for each place. Forest fire have devastating and unfortunate effects on both vegetation and ecosystems. Dealing with them presupposes the existence of integrated plans and management policies, but also the availability of timely and reliable statistics and information on fire regimes. Valuable help in these actions is the use of new technologies and data sources. Remote Sensing provides a solution to large-scale data collection problems. In more depth, Satellite Remote Sensing together with satellite data provides the possibility of better monitoring and management of the burned areas as well as the degradation of the environment. It is used for prevention, detection and direct mapping, both short- term and long- tern impacts. With the help of satellite data, taking at least two different time images depicting the same area, the appropriate correction can be made, using the appropriate vegetation indicators for each occasion and sorting the image so that it can indicate tot the analysed areas where the mapped surface has undergone changes. The presented diplomatic study refers to forest fire and how they affect the ecosystems, but even to the restoration of vegetation. The research also mentions the detectors contained in each satellite and how the Remote Sensing helps to monitor the vegetation by creating vegetation markers that each has its own role and purpose. It even develops the processing that satellite imagery needs to be classified and how Satellite Remote Sensing can help map forest fires. Ένα από τα περιβαλλοντικά προβλήματα που παρουσιάζει πολύ υψηλούς ρυθμούς εμφάνισης τις τελευταίες δεκαετίες, είναι οι δασικές πυρκαγιές. Τα δάση αποτελούν αναμφισβήτητα ένα ανανεώσιμο φυσικό πόρο, τα οποία παρέχουν τόσο περιβαλλοντική όσο και οικονομική, αλλά και πολιτιστική και κοινωνική ανάπτυξη για κάθε τόπο. Οι δασικές πυρκαγιές επιφέρουν καταστροφικές συνέπειες τόσο στη βλάστηση όσο και στη λειτουργία του οικοσυστήματος. Η αντιμετώπιση τους προϋποθέτει την υπάρξει ολοκληρωμένων σχεδίων και πολιτικών διαχείρισης, αλλά και τη διαθεσιμότητα έγκαιρων και αξιόπιστων στατιστικών και πληροφοριών σχετικά με τα καθεστώτα πυρκαγιών. Πολύτιμο αρωγό σε αυτές τις ενέργειες αποτελεί η χρήση νέων τεχνολογιών και πηγών δεδομένων. Η Τηλεπισκόπηση δίνει λύση σε προβλήματα συλλογής δεδομένων με μεγάλη έκταση. Πιο συγκεκριμένα, η Δορυφορική Τηλεπισκόπηση παρέχει μαζί με τα δορυφορικά δεδομένα την δυνατότητα καλύτερης παρακολούθησης και διαχείρισης των καμένων εκτάσεων καθώς και την υποβάθμιση του περιβάλλοντος. Χρησιμοποιείται για πρόληψη, ανίχνευση και άμεση χαρτογράφηση, εκτίμηση τόσο βραχυπρόθεσμα όσο και μακροπρόθεσμα των επιπτώσεων που προκαλεί. Με την βοήθεια των δορυφορικών δεδομένων, παίρνοντας δύο τουλάχιστον διαφορετικές χρονικά εικόνες που να απεικονίζουν την ίδια περιοχή, μπορούν να γίνουν οι κατάλληλες διορθώσεις, χρησιμοποιώντας τους κατάλληλους για κάθε περίσταση δείκτες βλάστησης και ακολούθως την ταξινόμηση των εικόνων για να μπορεί να υποδείξει στον αναλυτή περιοχές όπου η χαρτογραφούμενη επιφάνεια έχει υποστεί αλλαγές. Στη παρούσα διπλωματική μελέτη γίνεται αναφορά στις δασικές πυρκαγιές και πως αυτές επηρεάζουν στην συνέχεια τα οικοσυστήματα, αλλά ακόμα και στην αποκατάσταση της βλάστησης. Στην έρευνα γίνεται αναφορά και για τους ανιχνευτές που περιέχονται μέσα σε κάθε δορυφόρο αλλά και πως η Τηλεπισκόπηση βοηθά στην παρακολούθηση της βλάστησης με τη δημιουργία δεικτών βλάστησης που ο κάθε ένας έχει τον δικό του ρόλο και σκοπό. Αναπτύσσεται ακόμα και η επεξεργασία που χρειάζονται οι δορυφορικές εικόνες με την ταξινόμηση και πως μπορεί να βοηθήσει η Δορυφορική Τηλεπισκόπηση στη χαρτογράφηση των δασικών πυρκαγιών. Completed

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  • Open Access English
    Authors: 
    Themistocleous, Kyriacos; Danezis, Chris; Gikas, Vassilis;
    Country: Cyprus

    Nowadays, assessing geo-hazards in cultural heritage sites in most cases takes place after the hazard has occurred. Monitoring structural and ground deformation resulting from geo-hazards facilitates the early recognition of potential risks and encourages effective conservation planning. This paper presents an integrated ground deformation monitoring approach based on the combined use of satellite SAR data, campaign-based GPS/GNSS observations, and aerial images from UAVs within the Choirokoitia UNESCO World Heritage Site in Cyprus. The Neolithic settlement of Choirokoitia is one of the most important prehistoric sites in the Eastern Mediterranean. The site is located on a steep hill, which makes it vulnerable to rock falls and landslides. As part of the PROTHEGO project, a series of field measurements were collected at the Choirokoitia site and compared against satellite SAR data to verify kinematic behavior of the broader area and to assist in monitoring potential geo-hazards over time. The results obtained indicate displacement rates of the order of 0.03 m/year. These results indicate that ground deformation should be monitored in the area surrounding the Choirokoitia using long-term, low-impact monitoring systems such as SAR images and UAV-based and geodetic techniques. The combination of such monitoring technologies can be compared to monitor and assess potential geo-hazards on archeological sites with increased accuracy.

  • Open Access
    Authors: 
    Nzembayie, Kisito Futonge;
    Publisher: Technological University Dublin
    Country: Ireland

    Digitisation has ushered in a new era of value creation where cross border data flows generate more economic value than traditional flows of goods. The powerful new combination of digital and traditional forms of innovation has seen several new industries branded with a ‘tech’ suffix. In the education technology sector (EdTech), which is the industry context of this research, digitisation is driving double-digit growth into a projected $240 billion industry by 2021. Yet, despite its contemporary significance, the field of entrepreneurship has paid little attention to the phenomenon of digital entrepreneurship. As several scholars observe, digitisation challenges core organising axioms of entrepreneurship, with significant implications for the new venture creation process in new sectors such as EdTech. New venture creation no longer appears to follow discrete and linear models of innovation, as spatial and temporal boundaries get compressed. Given the paradigmatic shift, this study investigates three interrelated themes. Firstly, it seeks to determine how a Pure Digital Entrepreneurship (PDE) process develops over time; and more importantly, how the journey challenges extant assumptions of the entrepreneurial process. Secondly, it strives to identify and theorise the deep structures which underlie the PDE process through mechanism-based explanations. Consequently, the study also seeks to determine the causal pathways and enablers which overtly or covertly interrelate to power new venture emergence and performance. Thirdly, it aims to offer practical guidelines for nurturing the growth of PDE ventures, and for the development of supportive ecosystems. To meet the stated objectives, this study utilises an Insider Action Research (IAR) approach to inquiry, which incorporates reflective practice, collaborative inquiry and design research for third-person knowledge production. This three-pronged approach to inquiry allows for the enactment of a PDE journey in real-time, while acquiring a holistic narrative in the ‘swampy lowlands’ of new venture creation. The findings indicate that the PDE process is differentiated by the centrality of digital artifacts in new venture ideas, which in turn result in less-bounded processes that deliver temporal efficiencies – hence, the shorter new venture creation processes than in traditional forms of entrepreneurship. Further, PDE action is defined by two interrelated events – digital product development and digital growth marketing. These events are characterised by the constant forking, merging and termination of diverse activities. Secondly, concurrent enactment and piecemeal co-creation were found to be consequential mechanisms driving temporal efficiencies in digital product development. Meanwhile, data-driven operation and flexibility combine in digital growth marketing, to form higher order mechanisms which considerably reduce the levels of task-specific and outcome uncertainties. Finally, the study finds that digital growth marketing is differentiated from traditional marketing by the critical role of algorithmic agencies in their capacity as gatekeepers. Thus, unlike traditional marketing, which emphasises customer sovereignty, digital growth marketing involves a dual focus on the needs of human and algorithmic stakeholders. Based on the findings, this research develops a pragmatic model of pure digital new venture creation and suggests critical policy guidelines for nurturing the growth of PDE ventures and ecosystems.

  • Open Access
    Authors: 
    Adesi, Michael;
    Publisher: Technological University Dublin
    Country: Ireland

    The construction industry contributes significantly to the socio-economic development of nations through infrastructure development, and job creation culminating into the growth of Gross Domestic Product (GDP). Quantity Surveying Professional Service Firms (QSPSFs) play a critical role in the construction industry by ensuring that projects are delivered within cost, required quality and duration by providing technical and knowledge-intensive services to clients, contractors and stakeholders. Irish QSPSFs are facing challenges such as tender price inflation, intense competition, a skills shortage and disruptive technology. These challenges coupled with the cyclicality of the sector create a turbulent business environment for Irish QSPSFs, yet there remains a paucity of empirical evidence pertaining to how strategic decisions are made by these firms. Strategic planning is critical to addressing the challenges confronting business organisations such as the Irish QSPSFs; however, to date strategic planning has focused to a greater extent on manufacturing, oil and gas, retail, consumer products and light manufacturing, whereas there remains limited empirical investigation within the construction industry. This study aims to address this gap by examining the strategic decision-making process of Irish QSPSFs operating in the changing environment of the construction industry. What sets the research apart is that a Dynamic Capabilities (DC) perspective has been used with focus on sensing; seizing; and transformation, culminating into its integration into the development of a strategic decision-making framework. This study is entrenched in the pragmatist philosophical stance with emphasis on the positivist and interpretivist position and adopts mixed method by using quantitative and qualitative approaches over two phases. The first phase involves a survey administered with support from the Society of Chartered Surveyors Ireland (SCSI) to 350 member practices whereby a single senior Quantity Surveyors (QS) in each practice was invited to participate. Seventy-two usable survey questionnaires completed by respondents were prepared for data analysis. The second phase of the research comprised of interview with ten chief executives or managing directors of Irish QSPSFs. The study found the most preferred strategic choice at the corporate level of QSPSFs as the expansion of services to new markets and sectors. At the business level, the investigation discovered the differentiation of services as the main strategic choice of QSPSFs. Furthermore, participation in strategic decision-making is very critical to the success of strategy formulation in organisations. This study identifies the factors that drive participation in strategic decision-making as the knowledge and competence of staff; personality traits; and the ability of people to make decision at the operational level of the organisation. The investigation also found that strategic change has occurred in QSPSFs over the past ten years. This strategic change is attributable to turbulent environmental conditions such as economic recession, in particular reference to the prolong economic recession 2008-2013. The investigation identified the specific strategic changes that occurred in QSPSFs as growth and expansion into new markets; agglomeration, and changes in the ownership and management structure. The negative and positive impacts of economic recession on QSPSFs have also been identified in this investigation. For instance, a radical shift in strategic response from being proactive to reactive; and self-preservation of ownership structure are the ii adverse effects of economic recession identified by the study while knowledge acquisition; and risk profiling for identification and capturing of opportunities are the positive impacts of economic recession. The study found significant statistical evidence to confirm a strong relationship between the turbulent business environment and the strategic decision-making process characteristics of QSPSFs. A strategic decision-making framework was developed on the basis of field work undertaken which was subsequently validated by respondent practices. The framework is the first of its kind pertaining to construction PSFs.

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    The aim of this paper was the observation of asphalt surfaces using Remote Sensing techniques like the spectrometer, and digital images since they provide all the information that is needed to identify the damages that occurred due to time and the vehicle traffic. The main idea was to study various asphalt surfaces with damages caused by different factors (e.g. time, traffic) in the area of Limassol. However, because of the current situation this was not possible. Thus, the thesis was conducted based on previous studies. The previous studies refer to the damages that were caused mainly because of aging so they were divided based on the instruments that were used into the following categories: identification of damages using a spectrometer, identification of damages using a camera, and identification of damages using a spectrometer and a camera. The results showed that there were some differences in the asphalt surfaces that were studied. Specifically, in most of the previous studies errors were occurred because of some values that were removed for a better comparison of the results. Also, information about the asphalt’s aging were extracted based on their spectral signature. Η παρούσα μελέτη διεξήχθη με στόχο την παρακολούθηση των επιφανειών της ασφάλτου με τη βοήθεια της Τηλεπισκόπησης όπως το φασματοραδιόμετρο καθώς και τις ψηφιακές εικόνες, αφού πλέον μπορούμε πιο εύκολα να παρακολουθήσουμε τις φθορές της ασφάλτου που προκαλούνται είτε από τη μεγάλη ηλικία τους είτε από τη μεγάλη κυκλοφορία των οχημάτων. Το δείγμα της συγκεκριμένης μελέτης θα αποτελούσαν επτά διαφορετικοί δρόμοι της επαρχίας Λεμεσού με διαφορετικές συνθήκες ο καθένας ( ηλικία, κυκλοφορία). Δυστυχώς όμως λόγω της επικρατούσας κατάστασης αυτό δεν κατέστη εφικτό. Συνεπώς η πτυχιακή εργασία βασίστηκε σε άλλες μελέτες που είχαν πραγματοποιηθεί στο παρελθόν από διάφορους ερευνητές. Όλες αυτές οι μελέτες αναφέρονται στη γήρανση και στις φθορές γι’αυτό και χωρίστηκαν με βάση τα όργανα που χρησιμοποίησαν για να τις πραγματοποιήσουν με αποτέλεσμα να διαμορφωθούν ως εξής: εύρεση γήρανσης με φασματόμετρο, εύρεση γήρανσης με κάμερα και εύρεση γήρανσης με φασματόμετρο και κάμερα. Τα συμπεράσματα που προέκυψαν από τις πιο πάνω μελέτες ήταν ότι υπήρξαν κάποιες διαφορές στα ασφαλτικά οδοστρώματα. Πιο συγκεκριμένα διαφάνηκε ότι σε αρκετές μελέτες δεν έλειπαν τα σφάλματα με αποτέλεσμα κάποιες ακραίες τιμές να αφαιρούνται από τη φασματική υπογραφή ώστε να υπάρχει μια καλύτερη σύγκριση των αποτελεσμάτων. Ακόμη μέσα από τη φασματική υπογραφή παρατηρείται ότι βγαίνουν κάποια συμπεράσματα για τη συμπεριφορά της γήρανσης της ασφάλτου σε διάφορους παράγοντες. Completed

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    This paper presents the various imperfections (problems) that can occur on asphalt roads giving a little explanation for each. In addition, research has been done by other scientists in finding problems using different remote sensing techniques that can show the problems and various imperfections of asphalt pavements, mainly comparing their spectral signatures taken by each one separately, but also presenting the method and the instruments used. The research that I did on various roads using remote sensing techniques and mainly a wavelength spectrometer from 350nm to 2500nm is presented. Also presented are the spectral signatures extracted from the measured pavements, as well as the spectral signatures created knowing the percentages of imperfections they contain and the percentage of asphalt. At the same time, is presented on how these percentages can be perceived by three different satellites which are Landsat 8, Spot 7, World View 3 and expressed in square centimeters. My results and the conclusions drawn from the research are presented regarding the differences that asphalts may have, either due to the age difference of construction or due to the different problems that everyone may have, but at the same time their different imperfections. Reference to the spectral signatures created on how they can change the spectral signature of pure asphalt and are explained. This research is needed to get better results. In conclusion, the results showed that there are differences between the spectral signatures of the asphalts that depend on the year of construction but also on the imperfections (problems) that each presented separately. Spectral signatures have shown that not all imperfections can be seen through their reflectivity. Specific imperfections are obvious, and cause changes in the spectral signature of each pavement separately, which can be visible from satellites. Η παρούσα εργασία παρουσιάζει τις διάφορες ατέλειες(προβλήματα) που μπορούν να εμφανιστούν στα ασφαλτικά οδοστρώματα δίνοντας μια μικρή επεξήγηση για το καθένα. Επιπρόσθετα γίνεται αναφορά σε έρευνες που έγιναν από άλλους επιστήμονες στην ανεύρεση των προβλημάτων χρησιμοποιώντας διαφορετικές τεχνικές τηλεπισκόπησης οι οποίες μπορούν να δείξουν τα προβλήματα και τις διάφορες ατέλειες των ασφαλτικών οδοστρωμάτων συγκρίνοντας κυρίως τις φασματικές υπογραφές τους που λήφθηκαν από το καθένα ξεχωριστά, αλλά και παρουσιάζοντας τη μεθοδολογία και τα όργανα που χρησιμοποιήθηκαν. Παρουσιάζεται η έρευνα που έγινε από εμένα σε διάφορους δρόμους χρησιμοποιώντας τεχνικές τηλεπισκόπησης και κυρίως σπεκτροραδιόμετρο μήκους κύματος από 350nm μέχρι 2500nm. Επίσης παρουσιάζονται οι φασματικές υπογραφές που εξάχθηκαν από τα οδοστρώματα που μετρήθηκαν ,καθώς επίσης και οι φασματικές υπογραφές που δημιουργήθηκαν γνωρίζοντας τα ποσοστά ατελειών που περιέχουν αλλά και το ποσοστό ασφάλτου. Παράλληλα παρουσιάζεται ένα μικρό κομμάτι για το πώς μπορούν τα συγκεκριμένα ποσοστά να γίνουν αντιληπτά από τρις διαφορετικούς δορυφόρους οι οποίοι είναι οι Landsat 8 , Spot 7 , WorldView 3 και να εκφραστούν σε τετραγωνικά εκατοστά. Παρουσιάζονται τα αποτελέσματα μου και τα συμπεράσματα που εξάχθηκαν μέσα από την έρευνα όσο αφορά τις διαφορές που μπορεί να έχουν οι άσφαλτοι είτε λόγω διαφοράς ηλικίας κατασκευής είτε λόγω των διάφορων προβλημάτων που μπορεί να έχει ο καθένας , αλλά ταυτόχρονα και των διαφορετικών ατελειών τους .Γίνεται και αναφορά στις φασματικές υπογραφές που δημιουργήθηκαν για το πώς μπορούν να μεταβάλουν την φασματική υπογραφή του καθαρού ασφάλτου και επεξηγούνται. Το συγκεκριμένο κομμάτι αξίζει να σημειωθεί ότι χρειάζεται περισσότερη έρευνα με σκοπό να εξαχθούν καλύτερα αποτελέσματα. Εν κατακλείδι τα αποτελέσματα έδειξαν ότι υπάρχουν διαφορές μεταξύ των φασματικών υπογραφών των ασφάλτων που εξαρτώνται από το έτος κατασκευής αλλά και από τις ατέλειες(προβλήματα) που παρουσιάζει το καθένα ξεχωριστά. Οι φασματικές υπογραφές έδειξαν ότι δεν μπορούν όλες οι ατέλειες να είναι εμφανές μέσω της ανακλαστικότητας τους . Συγκεκριμένες ατέλειες που είναι εμφανές μέσω της ανακλαστικότητας τους , προκαλούν αλλαγές στην φασματική υπογραφή κάθε οδοστρώματος ξεχωριστά .Αυτές οι ατέλειες μπορούν να είναι εμφανές και από δορυφόρους. Completed

  • Open Access Greek
    Publisher: Τμήμα Πολυμέσων Και Γραφικών Τεχνών, Σχολή καλών και εφαρμοσμένων τεχνών, Τεχνολογικό Πανεπιστήμιο Κύπρου
    Country: Cyprus

    Last decade, there is a rapid growth in the development of the technology sector, as an aftermath of seeking solutions on technical problems. The use of technology, seen through this research, also applies to the digitization of traditional embroideries. Specifically, this can be done with the use of a laser cutter machine. The importance of this new technology, lies in the fact that the information is accurately scanned, so it can be then used for storing, processing or reprinting. The purpose of this research is the digitization of traditional embroideries, using a laser cutter. Secondly, the purpose is the propulsion of Cyprus culture and the manufacture of a final dressing using digital media. In order to carry out this work, a careful observation has been made of how wearers are made and the materials are used. A survey of the woven textiles of Cyprus followed, to create some patterns that arise in particular from the Lefkaritika and Foithkiotika textiles of Cyprus. Using the illustrator program, a digital recreation of the patterns mentioned and printing in different fabrics was made in order to decide the most appropriate and durable fabric. The finding of this work has shown that replication of particular patterns is possible in felt and leatherette. Leatherette though, has been characterized as the most suitable fabric, because it can be found in many applications. Τα τελευταία χρόνια παρατηρείται ραγδαία ανάπτυξη στο τομέα της τεχνολογίας, ως επακόλουθο αναζήτησης λύσεων σε τεχνικά προβλήματα. Η χρήση της τεχνολογίας, φαίνεται μέσα από αυτή την έρευνα να έχει εφαρμογή και στην ψηφιοποίηση παραδοσιακών κεντημάτων. Συγκεκριμένα, είναι ένας νέος τρόπο εφαρμογής με την χρήση μηχανήματος laser cutter. Η σημαντικότητα αυτής της τεχνολογίας έγκειται στο ότι οι πληροφορίες καταγράφονται με ακρίβεια, με απώτερο σκοπό την αποθήκευση, επεξεργασία και ανατύπωση. Σκοπός της παρούσας έρευνας, είναι η ψηφιοποίηση παραδοσιακών κεντημάτων με την χρήση laser cutter. Δευτερεύοντος, σκοπός είναι η προώθηση της κυπριακής κουλτούρας, καθώς επίσης και η δημιουργία τελικής ενδυμασίας μέσω των ψηφιακών μέσων. Για τη διεκπεραίωση της παρούσας εργασίας, χρειάστηκε ενδελεχής παρατήρηση στον τρόπο παρασκευής υφαντών και τη υλικά χρησιμοποιούνται. Ακολούθησε μια έρευνα για τα διάφορα υφαντά της Κύπρου για να δημιουργηθούν κάποια μοτίβα που προκύπτουν, συγκεκριμένα από τα λευκαρίτικα και φιθκιώτικα υφαντά της Κύπρου. Έπειτα, με την χρήση προγράμματος illustrator έγινε η ψηφιακή δημιουργία των πιο πάνω μοτίβων και εκτύπωση τους σε διάφορα υφάσματα για να αποφασιστεί το καταλληλότερο ύφασμα ως προς την ανθεκτικότητα τους. Τα ευρήματα αυτής της εργασίας έδειξαν ότι η ανατύπωση συγκεκριμένων μοτίβων μπορεί να γίνει σε τσόχα και δερματίνη. Η δερματίνη χαρακτηρίσθηκε όμως ως καταλληλότερο ύφασμα για το λόγο ότι μπορεί να βρεθεί σε περισσότερες εφαρμογές Completed

  • Open Access English
    Authors: 
    Lazarou, Marina;
    Publisher: Department of Communication and Internet Studies, Faculty of Communication and Media Studies, Cyprus University of Technology
    Country: Cyprus

    Considering the needs and demands of contemporary society, this study follows a technological approach. The use of technology and precisely the Internet of Things (IoT), flourishes among miscellaneous sectors due to the innumerable benefits that it grants. It plays a fundamental role in creating more efficient operations, as well as reshaping and facilitating people’s everyday lives. The current thesis focuses on the implementation of IoT technology in retail stores. It pursues an experimental methodological strategy which involves qualitative data. Specifically, through the literature review and interviews which were materialized, the tracking process and facilitation of garments within retail environments, were proven to have been significantly lacking. These processes noticeably influence customers’ service, as well as their experience and satisfaction. Hence, the development of a smart fitting room aims to enhance these segments and boost the store’s functional operation. Briefly, a smart fitting room is the evolution of the stores’ traditional changing room. The basic cabin is transformed to an enhanced consumer service environment, through the networked software and devices provided by the IoT ecosystem. Completed

  • Open Access
    Authors: 
    Joshi, Kompal;
    Publisher: Technological University Dublin
    Country: Ireland

    Post-harvest life of fresh produce is limited due to high metabolic activity and microbial spoilage. Modified atmosphere packaging (MAP) has proven to be one of the most effective techniques to extend the shelf life of fresh produce commercially. Obtaining of an optimum concentration of oxygen and carbon dioxide inside the package depends upon the product properties, the environmental conditions of the cold chain, the permeable film, some of which are subjected to natural variability during the food distribution chain. This variability may generate produce that is out of specification that will lead to food waste. Uncertainty analysis of this problem may lead to relevant interventions to prevent these losses. The hypothesis of this work was to create a mathematical model that predicts key quality factors for MAP packaged fresh products in the supply chain distribution, which will help to assess the food losses in relation to quality thresholds. The model developed simulated the respiration rate as function of O2 and CO2 concentration and produce temperature using Michaelis-Menten equations. The exchange of gases (O2, CO2) and water vapour between the fruit surface, package atmosphere and external atmosphere was modelled taking into account the process of transpiration and condensation. In the transpiration model, the fresh produce surface was assumed to be perfectly saturated and the energy of respiration was used to evaporate surface water. Temperature changes in the headspace due to metabolic heat, convective heat transfer and heat exchange by gas transmission through the package were accounted for. The quality attributes of fresh produce included weight loss and colour change (L, a, and b values) for mushroom, from Botrytis and its fermentative activity for strawberry and weight loss and spoilage for tomato. ii These conditions were simulated for real and variable i) export cold chain and ii) retail display storage to evaluate the effect of cold chain variability (temperature and relative humidity) on the quality of fresh produce and associated waste generation. The prediction of propagation of biological variance on the quality of fresh produce during storage was obtained using a mathematical model. Sensitivity analysis of the stochastic MAP model pointed out the influence of input parameters on the quality of fresh produce. The conclusions of the study showed that the toolbox developed is able to interpret cold chain data: 1) mathematical prediction of quality; 2) simulation of cold chain conditions allowing for different variability components; 3) estimation of waste generation kinetics based in all quality criteria and thresholds; 4) sensitivity analysis to identify the most sensitive technological parameters; and 5) identification of interventions that affect the benchmarked technological parameters.

  • Open Access Greek
    Publisher: Department of Agricultural Sciences, Biotechnology and Food Science, Faculty of Geotechnical Sciences and Environmental Management, Cyprus University of Technology
    Country: Cyprus

    During the last decades, there has been an increasing number of examples of drone applications in many areas of human activity such as geoinformatics, research, rescue, defence ets. This innovation easily affected the agricultural sector. It is providing it a completely new framework and equipping it with tools that empower and enable it to face the challenges of modern reality. The purpose of this study is, through the literature review, is to present applications of UAVs adopted by Precision Agriculture. First there is a brief reference to the history of drones. Their applications which are developed in agriculture as well as in greenhouses also are referred. The study continues to present the EU policy on the quality of agricultural products and how this policy is related to Precision Agriculture. It is also negotiating restrictions arising from the use of drones’ legislation as well as challenges that farmers may face using them. Finally, reference is made to examples of countries that already intergraded UAVs. A brief reference is made to Cyprus too as literature is very poor on this subject. The last chapter deals with conclusions drawn from the literature review. The main conclusion that emerges from this paper is that the agricultural communities and in general all those involved in the field of agricultural production worldwide, in their effort for modernization include tools and ICT technologies that strengthen decisionmaking processes for the benefit of their businesses. Drones seem to be gaining a very important place as tools in what we call precision agriculture despite all the limitations and challenges that exist. Τις τελευταίες δεκαετίες υπήρξε πρωτοφανής αύξηση των εφαρμογών με μη επανδρωμένα αεροσκάφη (ΜΕΑ), σε διάφορους τομείς όπως η γεωπληροφορική, έρευνα και διάσωση, άμυνα κλπ. Αυτή η καινοτομία ήταν φυσικό να εισβάλει και στον τομέα της γεωργίας δίνοντας της ένα εντελώς καινούριο πλαίσιο με εργαλεία που την ενδυναμώνουν και της δίνουν την δυνατότητα να αντιμετωπίσει τις προκλήσεις της σύγχρονης πραγματικότητας. Σκοπός αυτής της εργασίας είναι μέσα από την ανασκόπηση της βιβλιογραφίας να παρουσιάσει εφαρμογές των ΜΕΑ που υιοθετούνται από την Γεωργία Ακριβείας. Γίνεται αρχικά μια σύντομη αναφορά στην ιστορία των ΜΕΑ (drones) και αναπτύσσονται στην συνέχεια οι εφαρμογές τους στην Γεωργία καθώς και στα Θερμοκήπια. Παρουσιάζεται επίσης η πολιτική της ΕΕ για την ποιότητα των αγροτικών προϊόντων και πώς αυτή η πολιτική σχετίζεται με την Γεωργία Ακριβείας. Ακολούθως διαπραγματεύεται περιορισμούς που προκύπτουν από την νομοθεσία χρήσης των ΜΕΑ καθώς και προκλήσεις που πιθανόν να αντιμετωπίζουν οι γεωργοί στην χρήση των ΜΕΑ. Τέλος γίνεται αναφορά σε παραδείγματα χωρών που έχουν ήδη εντάξει τα ΜΕΑ και σύντομη αναφορά και στην Κύπρο. Το τελευταίο κεφάλαιο αφορά σε συμπεράσματα που προκύπτουν μέσα από την ανασκόπηση της βιβλιογραφίας. Το κυριότερο συμπέρασμα που προκύπτει από αυτήν την εργασία είναι ότι οι γεωργικές κοινότητες και γενικότερα όλοι όσοι ασχολούνται με τον τομέα της αγροτικής παραγωγής παγκοσμίως, στην προσπάθειά τους για εκσυγχρονισμό εντάσσουν στην φαρέτρα τους εργαλεία και τεχνολογίες οι οποίες ενδυναμώνουν τις διαδικασίες λήψης αποφάσεων προς όφελος των επιχειρήσεών τους. Τα ΜΕΑ, διαθέτουν τέτοιες εφαρμογές και φαίνεται να κερδίζουν μια πολύ σημαντική θέση ως εργαλεία σε αυτό που ονομάζουμε Γεωργίας Ακριβείας παρ΄ όλους τους περιορισμούς και τις προκλήσεις που υπάρχουν. Completed

  • Open Access Greek
    Publisher: Department of Civil Engineering and Geomatics, Faculty of Engineering and Technology, Cyprus University of Technology
    Country: Cyprus

    One of the environmental problems that has been occurring at a very high rate in recent decades is the forest fire. Forests are undoubtedly a renewable natural resource, which provides both environmental, economic and also cultural and social development for each place. Forest fire have devastating and unfortunate effects on both vegetation and ecosystems. Dealing with them presupposes the existence of integrated plans and management policies, but also the availability of timely and reliable statistics and information on fire regimes. Valuable help in these actions is the use of new technologies and data sources. Remote Sensing provides a solution to large-scale data collection problems. In more depth, Satellite Remote Sensing together with satellite data provides the possibility of better monitoring and management of the burned areas as well as the degradation of the environment. It is used for prevention, detection and direct mapping, both short- term and long- tern impacts. With the help of satellite data, taking at least two different time images depicting the same area, the appropriate correction can be made, using the appropriate vegetation indicators for each occasion and sorting the image so that it can indicate tot the analysed areas where the mapped surface has undergone changes. The presented diplomatic study refers to forest fire and how they affect the ecosystems, but even to the restoration of vegetation. The research also mentions the detectors contained in each satellite and how the Remote Sensing helps to monitor the vegetation by creating vegetation markers that each has its own role and purpose. It even develops the processing that satellite imagery needs to be classified and how Satellite Remote Sensing can help map forest fires. Ένα από τα περιβαλλοντικά προβλήματα που παρουσιάζει πολύ υψηλούς ρυθμούς εμφάνισης τις τελευταίες δεκαετίες, είναι οι δασικές πυρκαγιές. Τα δάση αποτελούν αναμφισβήτητα ένα ανανεώσιμο φυσικό πόρο, τα οποία παρέχουν τόσο περιβαλλοντική όσο και οικονομική, αλλά και πολιτιστική και κοινωνική ανάπτυξη για κάθε τόπο. Οι δασικές πυρκαγιές επιφέρουν καταστροφικές συνέπειες τόσο στη βλάστηση όσο και στη λειτουργία του οικοσυστήματος. Η αντιμετώπιση τους προϋποθέτει την υπάρξει ολοκληρωμένων σχεδίων και πολιτικών διαχείρισης, αλλά και τη διαθεσιμότητα έγκαιρων και αξιόπιστων στατιστικών και πληροφοριών σχετικά με τα καθεστώτα πυρκαγιών. Πολύτιμο αρωγό σε αυτές τις ενέργειες αποτελεί η χρήση νέων τεχνολογιών και πηγών δεδομένων. Η Τηλεπισκόπηση δίνει λύση σε προβλήματα συλλογής δεδομένων με μεγάλη έκταση. Πιο συγκεκριμένα, η Δορυφορική Τηλεπισκόπηση παρέχει μαζί με τα δορυφορικά δεδομένα την δυνατότητα καλύτερης παρακολούθησης και διαχείρισης των καμένων εκτάσεων καθώς και την υποβάθμιση του περιβάλλοντος. Χρησιμοποιείται για πρόληψη, ανίχνευση και άμεση χαρτογράφηση, εκτίμηση τόσο βραχυπρόθεσμα όσο και μακροπρόθεσμα των επιπτώσεων που προκαλεί. Με την βοήθεια των δορυφορικών δεδομένων, παίρνοντας δύο τουλάχιστον διαφορετικές χρονικά εικόνες που να απεικονίζουν την ίδια περιοχή, μπορούν να γίνουν οι κατάλληλες διορθώσεις, χρησιμοποιώντας τους κατάλληλους για κάθε περίσταση δείκτες βλάστησης και ακολούθως την ταξινόμηση των εικόνων για να μπορεί να υποδείξει στον αναλυτή περιοχές όπου η χαρτογραφούμενη επιφάνεια έχει υποστεί αλλαγές. Στη παρούσα διπλωματική μελέτη γίνεται αναφορά στις δασικές πυρκαγιές και πως αυτές επηρεάζουν στην συνέχεια τα οικοσυστήματα, αλλά ακόμα και στην αποκατάσταση της βλάστησης. Στην έρευνα γίνεται αναφορά και για τους ανιχνευτές που περιέχονται μέσα σε κάθε δορυφόρο αλλά και πως η Τηλεπισκόπηση βοηθά στην παρακολούθηση της βλάστησης με τη δημιουργία δεικτών βλάστησης που ο κάθε ένας έχει τον δικό του ρόλο και σκοπό. Αναπτύσσεται ακόμα και η επεξεργασία που χρειάζονται οι δορυφορικές εικόνες με την ταξινόμηση και πως μπορεί να βοηθήσει η Δορυφορική Τηλεπισκόπηση στη χαρτογράφηση των δασικών πυρκαγιών. Completed