Browsing NUP Academic Publications - Ακαδημαϊκές Δημοσιεύσεις ΠΝΠ by Title

Now showing items 608-627 of 1593

  • Noise and Vibration study for the Hellenic Navy Offshore Patrol Vessels 

    Papagoglou, V.J.; Bellos, John; Katsaounis, G. (1991)
    Prelemenary free hull girder vibration study of offshore patrol vessel of Hellenic Navy

  • Non parametric VaR Techniques. Myths and Realities 

    Giannopoulos, Kostas; Barone-Adesi, Giovanni (Wiley Online Library, 2003-12-03)
    VaR (value-at-risk) estimates are currently based on two main techniques: the variance-covariance approach or simulation. Statistical and computational problems affect the reliability of these techniques. We illustrate a ...

  • Nonparametric, conditional pricing of higher order multivariate contingent claims 

    Giannopoulos, Kostas (2008-09)
    This paper describes and applies a nonparametric model for pricing multivariate contingent claims. Multivariate contingent claims are contracts whose payoffs depend on the future prices of more than one underlying variable. ...

  • The NOPTILUS project overview: A fully-autonomous navigation system of teams of AUVs for static/dynamic underwater map construction 

    Kapoutsis, A. Ch.; Salavasidis, G. V.; Chatzichristofis, Savvas A.; Braga, J.; Pinto, J.; Borges de Sousa, Joao; Kosmatopoulos, E. B. (IFAC (International Federation of Automatic Control), 2015)
    Within the project NOPTILUS, a fully functional system/methodology had been developed that allows the cooperative, fully-autonomous navigation of teams of AUVs when deployed in Static or Dynamic Underwater Map Construction ...

  • The NOPTILUS project: Autonomous Multi-AUV Navigation for Exploration of Uknown Environments ★ 

    Chatzichristofis, Savvas A.; Kapoutsis, A.; Kosmatopoulos, E. B.; Doitsidis, L.; Rovas, D.; Borges de Sousa, Joao (IFAC (International Federation of Automatic Control), 2013)
    Current multi-AUV systems are far from being capable of fully autonomously taking over real-life complex situation-awareness operations. As such operations require advanced reasoning and decision-making abilities, current ...

  • Notarization of Knowledge Retrieval from Biomedical Repositories Using Blockchain Technology 

    Mytis-Gkometh, P.; Drosatos, G.; Efraimidis, P. S.; Kaldoudi, E. (International Conference on Biomedical and Health Informatics, 2017)
    Biomedical research and clinical decision depend increasingly on a number of authoritative databases, mostly public and continually enriched via peer scientific contributions. Given the dynamic nature of data and their ...

  • A novel cellular automata based technique for visual multimedia content encryption 

    Chatzichristofis, Savvas A.; Mitzias, Dimitris A.; Sirakoulis, Georgios Ch.; Boutalis, Yiannis S. (Elsevier, 2010)
    This paper proposes a new method for visual multimedia content encryption using Cellular Automata (CA). The encryption scheme is based on the application of an attribute of the CLF XOR filter, according to which the original ...

  • A Novel Image Retrieval Based on Visual Words Integration of SIFT and SURF 

    Ali, Nouman; Bajwa, Khalid Bashir; Sablatnig, Robert; Chatzichristofis, Savvas A.; Iqbal, Zeshan; Rashid, Muhammad; Habib, Hafiz Adnan (2016)
    With the recent evolution of technology, the number of image archives has increased exponentially. In Content-Based Image Retrieval (CBIR), high-level visual information is represented in the form of low-level features. ...

  • Numerical aspects of incremental dynamic analysis for the retrofitting of existing industrial steel building utilizing SSCD dampers 

    Bellos, John; Bakas, Nikolaos; Castiglioni, Carlo (2017)
    In this work, the nonlinear analysis of an existing industrial steel structure (Sodium building), and its retrofitting using SSCD dampers is demonstrated. Specific numerical complications of incremental dynamic (IDA) and ...

  • Nurse-physician collaboration and associations with perceived autonomy in Cypriot critical care nurses 

    Georgiou, Evanthia; Papathanassoglou, Elizabeth, DE.; Pavlakis, Andreas (John Wiley & Sons, 2015-01)
    Background and aims: Increased nurse-physician collaboration is a factor in improved patient outcomes. Limited autonomy of nurses has been proposed as a barrier to collaboration. This study aims to explore nurse-physician ...

  • Observations comparees sur les incitations financieres au developpement regional en Grece (1982-1986) 

    Athanasopoulos, Constantinos GE.; Courteoux, Jean-Paul (Presses universitaires de France, 1988-12)
    Les lois de développement qui ont été périodiquement mises en oeuvre en Grèce n'ont pas toujours comporté d'incitations financières. Cette absence pouvait s'expliquer de plusieurs manières, soit que l'on ait préféré alors ...

  • Obstacles to the Free Movement of Rainbow Families in the EU 

    Tryfonidou, Alina (Policy Department for Citizens’ Rights and Constitutional Affairs Directorate-General for Internal Policies, European Parliament, 2021)
    This study, commissioned by the European Parliament’s Policy Department for Citizens’ Rights and Constitutional Affairs at the request of the PETI Committee, examines: (i) the obstacles that rainbow families (same-sex ...

  • On the Legislation of Investments in Greece 

    Athanasopoulos, Constantinos GE. (Κέντρο Επιμόρφωσης Μελετών Έρευνας και Ανάπτυξης, 1998)
    The new Government announced the five priorities of its governmental program that refer to matters of foreign affairs, defence economic and developmental policies, to the institutions and t public administration, Education, ...

  • On the simplicity of the curve hypotheses 

    Kargopoulos, Phillipos V. (Springer, 1992)
    Popper's theory of simplicity has three great merits advocating it: it has intuitive appeal, it proposes a clear criterion for judging the relative simplicity of rival hypotheses, and, finally, it answers the question ...

  • On the synthesis of general systems 

    Makridakis, Spyros; Weintraub, Roy E. (Society for General Systems Research, 1971)
    The concept of a system has been identified in a large number of disciplines; biology, management science, economics, sociology, political science, theology, law, etc., have profited by the apparatus associated with ...

  • On the synthesis of general systems 

    Weintraub, Roy E.; Makridakis, Spyros (Society for General Systems Research, 1971)
    In Part I, we extended the work of Ashby [1,2] to develop an analytical framework for determining the relation betweén system size and system stability. It was established that, for linear dynamic systems, as the number ...

  • “An Ongoing Struggle With the Self and Illness”: Α Meta-Synthesis of the Studies of the Lived Experience of Severe Mental Illness 

    Kaite, Charis P.; Karanikola, Maria; Merkouris, Anastasios; Papathanassoglou, Elizabeth D.E. (Elsevier, 2015)
    The diverse experiences of severely mentally ill persons, most of the times, have not been taken into account, or integrated to the treatment procedures. This meta-synthesis aimed to examine what is like to live with severe ...

  • An Ongoing Struggle With the Self and Illness”: Α Meta-Synthesis of the Studies of the Lived Experience of Severe Mental Illness 

    Kaite, Charis P.; Karanikola, Maria; Merkouris, Anastasios; Papathanassoglou, Elizabeth D.E. (Elsevier, 2015)
    The diverse experiences of severely mentally ill persons, most of the times, have not been taken into account, or integrated to the treatment procedures. This meta-synthesis aimed to examine what is like to live with severe ...

  • An Online Service for Topics and Trends Analysis in Medical Literature 

    Kavvadias, Spyridon; Drosatos, George; Kaldoudi, Eleni (IFMBE Proceedings, 2018-05)
    Topic modeling refers to a suite of probabilistic algorithms for extracting word patterns from a collection of documents aiming for data clustering and detection of research trends. We developed an online service that ...

  • An Ontology Based Scheme for Formal Care Plan Meta-Description 

    Kaldoudi, E.; Drosatos, G.; Portokallidis, N.; Third, A. (IFMBE Proceedings 57, 2016)
    Contemporary healthcare delivery is based on state-of-the-art scientific best practices captured in systematically developed formal care plans which include guidelines, clinical protocols, integrated care pathways, etc. ...