248 research outputs found
Data Set of PLOS Computational Paper PCOMPBIOL-D-18-02181R1
No full textFigures Data of PLOS Computational paper:Modeling of the axon plasma membrane structure and its effects on protein diffusionAuthors: Yihao Zhang, Anastasios V. Tzingounis, and George LykotrafitisCorresponding Author: George Lykotrafitis, Ph.D.University of ConnecticutStorss, CT UNITED STATES</div
The state of modern Greek language as spoken in Victoria
No full textDeposited with permission of the author. © 1986 Dr. Anastasios TamisThis thesis reports a sociolinguistic study, carried out between 1981 and 1984, of the state of the Modern Greek (MG) language in Australia, as spoken by native-speaking first-generation Greek immigrants in Victoria. Particular emphasis is given to the analysis of those characteristics of the linguistic behaviour of these Greek Australians which can be attributed to the contact with English and to other environmental, social and linguistic influence. (For complete abstract open document
Design, development and testing of Vision Picking Technology
No full textΤα τελευταία χρόνια η πολυπλοκότητα κατά τη διάρκεια εκτέλεσης των διαδικασιών εντός των αποθηκευτικών χώρων έχει αυξηθεί σημαντικά. Παρά το γεγονός ότι όλες οι διαδικασίες ενός αποθηκευτικού χώρου είναι εξίσου σημαντικές και επηρεάζουν το λειτουργικό κόστος, είναι σημαντικό να αναφερθεί ότι η διαδικασία της συλλογής παραγγελιών αποτελεί την πιο ακριβή διαδικασία, δεδομένου ότι συμβάλει στο λειτουργικό κόστος σε ποσοστό που αγγίζει το 55% - 65% του συνολικού λειτουργικού κόστους. Η ανάπτυξη των πληροφοριακών συστημάτων κατά τη διάρκεια των τελευταίων δεκαετιών, συνέβαλε στην εμφάνιση μιας σειράς αξιόλογων τεχνολογιών και συστημάτων, ωστόσο υπάρχει ακόμη η ανάγκη για την υιοθέτηση μιας τεχνολογίας που θα έχει τη δυνατότητα να αυξήσει την παραγωγικότητα και να μειώσει το ποσοστό λαθών κατά τη διάρκεια συλλογής των παραγγελιών. Με βάση τη βιβλιογραφία καθώς επίσης λαμβάνοντας υπόψη μια σειρά απο μελέτες, διαφαίνεται ότι η τεχνολογία της συλλογής παραγγελιών με τη χρήση της όρασης (Vision picking) αποτελεί μια πολλά υποσχόμενη τεχνολογία, δεδομένου ότι μπορεί να προσφέρει πιο γρήγορη συλλογή παραγγελιών, με λιγότερα λάθη και με υψηλό βαθμό ελευθερίας των χεριών των εργαζόμενων συλλογής παραγγελιών. O βασικός σκοπός της παρούσης διπλωματικής αφορά στο σχεδιασμό ενός συστήματος συλλογής παραγγελιών, με τη χρήση της όρασης, το οποίο θα μπορεί να χρησιμοποιείται σε εγκαταστάσεις logistics. Για την επίτευξη του αρχικού σκοπού ήταν απαραίτητο να επιτευχθούν μια σειρά απο επιμέρους στόχους. Ο πρώτος στόχος αφορά στον εντοπισμό μιας σειράς παραμέτρων (μέσω Systematic Literature Review), οι οποίες μπορούν να χρησιμοποιηθούν κατά τη διάρκεια των σταδίων σχεδιασμού, ανάπτυξης και αξιολόγησης της εν λόγω τεχνολογίας. Ο δεύτερος στόχος, εστιάζει στην αξιολόγηση και επιλογή (μέσω Analytic Hierarchy Process) μιας σειράς παραμέτρων, προκειμένου να χρησιμοποιηθούν για την αξιολόγηση της εν λόγω τεχνολογίας, ενώ ο τρίτος στόχος σχετίζεται με την αξιολόγηση της τεχνολογίας μέσω μιας σειράς εργαστηριακών δοκιμών (σχεδιασμός δοκιμών μέσω Design of Experiments) στα πλαίσια των οποίων αξιολογείται η αποδοτικότητα του συστήματος σε επίπεδο α) χρόνου ολοκλήρωση συλλογής παραγγελιών, β) ακρίβειας παραγγελίας και γ) φόρτου εργασίας (NASA TLX Score)
New historical evidence for Anastasios Emm. Papas
No full textNo AbstractThe author’s attention has been drawn to the existence of this historicalevidence in the National Archives of Vienna, by his friend the writer EteoclesGregoriadis together with the numbers of the relevant files. Most of the documents were written in the old German script. Thus the author asked for the help of his friend and former colleague at the University of Thessaloniki and director of the Goethe Institute, Graf Kurt v. Posadowsky, for reading andstudying those documents. Without his help this study would have been impossible. This new evidence concerns the sojourn of Anastasios Papas·—son of Emmanuel Papas, leading figure of the Greek Revolution—in Austria andGermany between the 3rd January and 11th March 1822. There is informationabout his short imprisonment in Trieste, after his arival from Vienna. He then visits various towns in Germany and after negotiations with the Philhellene professor Fr. Thiersch in Munich, he purchases large quantities of ammunition to be despatched to Greece. He finally arrives in Greece early in 1824, and takes part—together with his three brothers who were already fighting—in the struggle for the liberation of the common great fartheland
Calculation and Assessment of CO2e Emissions in Road Freight Transportation: A Greek Case Study
No full textRoad freight transportation is already contributing significantly to global warming, and its emissions are predicted to grow dramatically in the following years. Carbon footprint calculation can be used to assess CO2e emissions to understand how an organization’s activities impact global sustainability. To this end, the main objective of this paper is initially to assess the impact of Green House Gas (GHG) emissions stemming from road freight transportation. Subsequently, we adopt the EN 16258 standard to calculate the carbon footprint of a truck fleet of a freight transport operator in Greece. Based on the obtained results, we assess the performance of the company’s fleet by adopting relevant sustainability indicators. We also evaluate the use of CNG as an alternative fuel and its impact on CO2e emissions and operational costs. The paper concludes with a list of additional measures toward further reduction and offsetting of CO2e emissions
Investigating the Performance of the Order-Picking Process by Using Smart Glasses: A Laboratory Experimental Approach
No full textBackground: Order picking process is critical for accurate and efficient order fulfilment. Pick-by-vision is a promising technology that may support order picking process, however there is still a limited amount of research concerning the impact of this technology on the performance of order-picking. The purpose of this paper is to investigate certain operational and technical parameters that affect the performance of pick-by-vision technology in item-level order picking via a series of laboratory tests. Methods: A systematic literature review is conducted for the identification of parameters that affect pick-by-vision performance. Subsequently, the analytical hierarchy process is adopted to rank these parameters, concerning their impact on order picking. Then, the design of experiment and NASA task load index methodology are implemented for assessing pick-by-vision efficiency and perceived workload. Results: The results reveal the parameters that significantly affect the performance of the pick-by-vision system, as well as the best configuration of parameters for the implementation of the proposed system in real environments. Conclusions: The results obtained are encouraging, showing how pick-by-vision technology can support order picking efficiency. Furthermore, practical implications are presented that deal with the organizational culture, process re-engineering, staff resistance to change, and motivation for maintaining the new way of executing order-picking processes
Appendix_SLR Journal Paper_Order-picking system Design, Development & Testing
No full textThis dataset includes a series of tables mentioned in an academic journal article entitled "A state-of-the-art classification and review of parameters that affect the design, control, and operating strategies of order-picking systems" which is published by Operational Research - An International Journal (ORIJ). This dataset is part of the Appendix to the journal mentioned above article.</p
Data belonging the publication: ‘A state of the art classification and review of parameters that affect the design, control, and operating strategies of order picking system’
No full textThis dataset includes a series of tables (Appendix) which mentioned in an academic article entitled "A state of the art classification and review of parameters that affect the design, control, and operating strategies of order picking system". </p
Measurement of damage growth in ultrasonic spot welded joint
No full textUltrasonic spot welding is a joining technique for thermoplastic composites with great potential regarding processing speed and cost. To investigate the damage tolerance and possible inherent damage arresting behavior of multi-spot welded joints, a technique is necessary to measure damage growth in the joints under cyclic loading. Visual inspection is not possible because the damage is not located on the outside surface and conventional techniques such as C-scan are not practical during a fatigue test because the specimen would have to be removed from the setup. This paper details a methodology for quantifying damage growth rates in singlespot welded joints using surface strain measurements made by Digital Image Correlation. This represents the first step towards developing a methodology for quantifying damage progression behavior in complex multi-spot welded joints.Structural Integrity & CompositesAerospace Structures & Computational Mechanic
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