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Electrophoresis is a standard technique used in medical laboratories and research institutions worldwide, for DNA, RNA and protein analysis. Various methodologies and techniques have been developed over the past decades. The common ground used in all approaches is the separation of molecule particles based on their movement on a substrate under the existence of an electric field. Relevant research is assisted by the advancement of technology and focuses on the development of innovative and fully automated electrophoresis systems that use robotic systems and advanced programming techniques. To this extent, the proposed paper focuses on the presentation of an innovative fully automated electrophoresis system, currently being developed within the framework of a research project funded by the Greek National Programme for Competitiveness Entrepreneurship and Innovation. The system can process multiple protocols of gel electrophoresis, on a precast agarose film, utilizing a combination of hardware and software, with minimal intervention by humans. Healthcare professionals could significantly benefit from this system by obtaining fast and accurate results in a fully automated fashion, by eliminating human errors during the process.
Konstantinos Theodoridis; Fotis Stergiopoulos; Dimitrios Bechtsis; Nikolaos Nikolaidis; Dimitrios Triantafyllidis; Apostolos Tsagaris; Anastasios Filelis; Asterios Papaikonomou. An Innovative and Fully Automated System for Gel Electrophoresis. 13th International Symposium on Process Systems Engineering (PSE 2018) 2020, 48, 847 -852.
AMA StyleKonstantinos Theodoridis, Fotis Stergiopoulos, Dimitrios Bechtsis, Nikolaos Nikolaidis, Dimitrios Triantafyllidis, Apostolos Tsagaris, Anastasios Filelis, Asterios Papaikonomou. An Innovative and Fully Automated System for Gel Electrophoresis. 13th International Symposium on Process Systems Engineering (PSE 2018). 2020; 48 ():847-852.
Chicago/Turabian StyleKonstantinos Theodoridis; Fotis Stergiopoulos; Dimitrios Bechtsis; Nikolaos Nikolaidis; Dimitrios Triantafyllidis; Apostolos Tsagaris; Anastasios Filelis; Asterios Papaikonomou. 2020. "An Innovative and Fully Automated System for Gel Electrophoresis." 13th International Symposium on Process Systems Engineering (PSE 2018) 48, no. : 847-852.
Global agricultural trade flows demonstrated a three-fold growth during the past decade particularly in emerging economies. At the same time, global food scandals in conjunction with the spillover effects in economy and society highlight the unreliability of existing food tracking systems and the inefficiency in monitoring food quality and fraud incidents across global food supply chains (SCs). Blockchain technology (BCT), which has already been successfully applied on the financial industry to validate critical transactions, seems to be a promising option. This research investigates a two-stage containerized food SC by implementing a demonstrator application at the Hyperledger Fabric framework. The study findings indicates that on one hand BCT has entered its maturity phase while on the other hand its adoption in food SC operations could add significant value by authenticating critical parameters and providing enhanced traceability . At the same time, BCT enabled by other digital technologies could allow for the optimization of global food SCs. Thus, BCT constitutes a promising digital technology that provides the capability to food SC stakeholders to securely share information, enhance process control and traceability and prevent potential risks.
Dimitrios Bechtsis; Naoum Tsolakis; Apostolos Bizakis; Dimitrios Vlachos. A Blockchain Framework for Containerized Food Supply Chains. Computer Aided Chemical Engineering 2019, 46, 1369 -1374.
AMA StyleDimitrios Bechtsis, Naoum Tsolakis, Apostolos Bizakis, Dimitrios Vlachos. A Blockchain Framework for Containerized Food Supply Chains. Computer Aided Chemical Engineering. 2019; 46 ():1369-1374.
Chicago/Turabian StyleDimitrios Bechtsis; Naoum Tsolakis; Apostolos Bizakis; Dimitrios Vlachos. 2019. "A Blockchain Framework for Containerized Food Supply Chains." Computer Aided Chemical Engineering 46, no. : 1369-1374.
This research aims to develop a farm management emulation tool that enables agrifood producers to effectively introduce advanced digital technologies, like intelligent and autonomous unmanned ground vehicles (UGVs), in real-world field operations. To that end, we first provide a critical taxonomy of studies investigating agricultural robotic systems with regard to: (i) the analysis approach, i.e., simulation, emulation, real-world implementation; (ii) farming operations; and (iii) the farming type. Our analysis demonstrates that simulation and emulation modelling have been extensively applied to study advanced agricultural machinery while the majority of the extant research efforts focuses on harvesting/picking/mowing and fertilizing/spraying activities; most studies consider a generic agricultural layout. Thereafter, we developed AgROS, an emulation tool based on the Robot Operating System, which could be used for assessing the efficiency of real-world robot systems in customized fields. The AgROS allows farmers to select their actual field from a map layout, import the landscape of the field, add characteristics of the actual agricultural layout (e.g., trees, static objects), select an agricultural robot from a predefined list of commercial systems, import the selected UGV into the emulation environment, and test the robot’s performance in a quasi-real-world environment. AgROS supports farmers in the ex-ante analysis and performance evaluation of robotized precision farming operations while lays the foundations for realizing “digital twins” in agriculture.
Naoum Tsolakis; Dimitrios Bechtsis; Dionysis Bochtis. AgROS: A Robot Operating System Based Emulation Tool for Agricultural Robotics. Agronomy 2019, 9, 403 .
AMA StyleNaoum Tsolakis, Dimitrios Bechtsis, Dionysis Bochtis. AgROS: A Robot Operating System Based Emulation Tool for Agricultural Robotics. Agronomy. 2019; 9 (7):403.
Chicago/Turabian StyleNaoum Tsolakis; Dimitrios Bechtsis; Dionysis Bochtis. 2019. "AgROS: A Robot Operating System Based Emulation Tool for Agricultural Robotics." Agronomy 9, no. 7: 403.
Autonomous systems are a promising alternative for safely executing precision farming activities in a 24/7 perspective. In this context Unmanned Ground Vehicles (UGVs) are used in custom agricultural fields, with sophisticated sensors and data fusion techniques for real-time mapping and navigation. The aim of this study is to present a simulation software tool for providing effective and efficient farming activities in orchard fields and demonstrating the applicability of simulation in routing algorithms, hence increasing productivity, while dynamically addressing operational and tactical level uncertainties. The three dimensional virtual world includes the field layout and the static objects (orchard trees, obstacles, physical boundaries) and is constructed in the open source Gazebo simulation software while the Robot Operating System (ROS) and the implemented algorithms are tested using a custom vehicle. As a result a routing algorithm is executed and enables the UGV to pass through all the orchard trees while dynamically avoiding static and dynamic obstacles. Unlike existing sophisticated tools, the developed mechanism could accommodate an extensive variety of agricultural activities and could be transparently transferred from the simulation environment to real world ROS compatible UGVs providing user-friendly and highly customizable navigation.
Dimitrios Bechtsis; Vasileios Moisiadis; Naoum Tsolakis; Dimitrios Vlachos; Dionysis Bochtis. Unmanned Ground Vehicles in Precision Farming Services: An Integrated Emulation Modelling Approach. Communications in Computer and Information Science 2019, 177 -190.
AMA StyleDimitrios Bechtsis, Vasileios Moisiadis, Naoum Tsolakis, Dimitrios Vlachos, Dionysis Bochtis. Unmanned Ground Vehicles in Precision Farming Services: An Integrated Emulation Modelling Approach. Communications in Computer and Information Science. 2019; ():177-190.
Chicago/Turabian StyleDimitrios Bechtsis; Vasileios Moisiadis; Naoum Tsolakis; Dimitrios Vlachos; Dionysis Bochtis. 2019. "Unmanned Ground Vehicles in Precision Farming Services: An Integrated Emulation Modelling Approach." Communications in Computer and Information Science , no. : 177-190.
Dimitrios Bechtsis; Naoum Tsolakis. Trends in Industrial Informatics and Supply Chain Management. International Journal of New Technology and Research 2018, 4, 1 .
AMA StyleDimitrios Bechtsis, Naoum Tsolakis. Trends in Industrial Informatics and Supply Chain Management. International Journal of New Technology and Research. 2018; 4 (10):1.
Chicago/Turabian StyleDimitrios Bechtsis; Naoum Tsolakis. 2018. "Trends in Industrial Informatics and Supply Chain Management." International Journal of New Technology and Research 4, no. 10: 1.
Purpose The purpose of this paper is twofold: first, to discuss key challenges associated with the use of either simulation or real-world application of intelligent autonomous vehicles (IAVs) in supply network operations; and second, to provide a theoretical and empirical evidence-based methodological framework that supports the integrated application of conceptualisation, simulation, emulation and physical application of IAVs for the effective design of digital supply networks. Design/methodology/approach First, this study performs a critical review of the extant literature to identify major benefits and shortcomings related to the use of either simulation modelling or real-word application of physical IAVs. Second, commercial and bespoke software applications, along with a three-dimensional validation and verification emulation tool, are developed to evaluate an IAV’s operations in a conceptual warehouse. Third, a commercial depth-sensor is used as a test bed in a physical setting. Findings The results demonstrate that conceptual and simulation modelling should be initially used to explore alternative supply chain operations in terms of ideal performance while emulation tools and real-world IAV test beds are eminent in validating preferred digital supply chain design options. Research limitations/implications The provided analysis framework was developed using literature evidence along with experimental work and research experience, without consulting any industry experts. In addition, this study was developed based on the application of a single physical device application as a test bed and, thus, the authors should further progress with the testing of a physical IAV in an industrial warehouse. Practical implications The study provides bespoke simulation modelling and emulation tools that can be useful for supply chain practitioners in effectively designing network operations. Originality/value This work contributes in the operations management field by providing both a multi-stage methodological framework and a practical “toolbox” for the proactive assessment and incorporation of IAVs in supply network operations.
Naoum Tsolakis; Dimitrios Bechtsis; Jagjit Singh Srai. Intelligent autonomous vehicles in digital supply chains. Business Process Management Journal 2018, 25, 414 -437.
AMA StyleNaoum Tsolakis, Dimitrios Bechtsis, Jagjit Singh Srai. Intelligent autonomous vehicles in digital supply chains. Business Process Management Journal. 2018; 25 (3):414-437.
Chicago/Turabian StyleNaoum Tsolakis; Dimitrios Bechtsis; Jagjit Singh Srai. 2018. "Intelligent autonomous vehicles in digital supply chains." Business Process Management Journal 25, no. 3: 414-437.
Digital manufacturing promotes the use of innovative technologies in the global market landscape and provides effective and efficient Supply Chain Management Systems. The purpose of this research is to contribute to the automation of an industrial warehouse by elaborating a novel software simulation tool for solving a classical NP-hard optimization problem, the Capacitated Vehicle Routing Problem with Multiple Trips (CVRPMT). The software tool promotes the use of Automated Guided Vehicles (AGVs) in industrial facility layouts and is based on an existing software framework, developed in the C# programming language. At this study we first formulate the mathematical model for the CVRPMT, we implement a hybrid metaheuristic Ant Colony Optimization (ACO) algorithm and develop a friendly Graphical User Interface (GUI) for scheduling and monitoring the AGVs’ activities.
Dimitrios Poulimenos; Dimitrios Bechtsis; Dimitrios Vlachos; Eleftherios Iakovou. A software tool for optimizing intra-logistic activities. 16th European Symposium on Computer Aided Process Engineering and 9th International Symposium on Process Systems Engineering 2018, 43, 439 -444.
AMA StyleDimitrios Poulimenos, Dimitrios Bechtsis, Dimitrios Vlachos, Eleftherios Iakovou. A software tool for optimizing intra-logistic activities. 16th European Symposium on Computer Aided Process Engineering and 9th International Symposium on Process Systems Engineering. 2018; 43 ():439-444.
Chicago/Turabian StyleDimitrios Poulimenos; Dimitrios Bechtsis; Dimitrios Vlachos; Eleftherios Iakovou. 2018. "A software tool for optimizing intra-logistic activities." 16th European Symposium on Computer Aided Process Engineering and 9th International Symposium on Process Systems Engineering 43, no. : 439-444.
The principal objective of this research is to provide a framework that captures the main software architecture elements for developing highly customized simulation tools that support the effective integration of Intelligent Autonomous Vehicles (IAVs) in sustainable supply networks, as an emerging field in the operations management agenda. To that end, the study's contribution is fourfold including: (i) a review of software simulation tools and platforms used in assessing the performance of IAVs interlinked with sustainability ramifications in supply chain (SC) ecosystems, (ii) an integrated software framework for monitoring and assessing the sustainability performance of SCs defined by the utilisation of innovative IAVs in operations, (iii) a translation of the proposed SC framework into a corresponding software application through a robust five-stage stepwise process, and (iv) a demonstration of the developed software tool through its application on the case of an IAV system operating in a customisable warehouse model. Our analysis highlights the flexibility resulting from a decentralised software management architecture, thus enabling the dynamic reconfiguration of a SC network. In addition, the developed pilot simulation tool can assist operations managers in capturing the operational needs of facilities and assessing the performance of IAV systems while considering sustainability parameters.
Dimitrios Bechtsis; Naoum Tsolakis; Dimitrios Vlachos; Jagjit Singh Srai. Intelligent Autonomous Vehicles in digital supply chains: A framework for integrating innovations towards sustainable value networks. Journal of Cleaner Production 2018, 181, 60 -71.
AMA StyleDimitrios Bechtsis, Naoum Tsolakis, Dimitrios Vlachos, Jagjit Singh Srai. Intelligent Autonomous Vehicles in digital supply chains: A framework for integrating innovations towards sustainable value networks. Journal of Cleaner Production. 2018; 181 ():60-71.
Chicago/Turabian StyleDimitrios Bechtsis; Naoum Tsolakis; Dimitrios Vlachos; Jagjit Singh Srai. 2018. "Intelligent Autonomous Vehicles in digital supply chains: A framework for integrating innovations towards sustainable value networks." Journal of Cleaner Production 181, no. : 60-71.
Dimitrios Bechtsis; Naoum Tsolakis; Dimitrios Vlachos; Eleftherios Iakovou. Sustainable supply chain management in the digitalisation era: The impact of Automated Guided Vehicles. Journal of Cleaner Production 2017, 142, 3970 -3984.
AMA StyleDimitrios Bechtsis, Naoum Tsolakis, Dimitrios Vlachos, Eleftherios Iakovou. Sustainable supply chain management in the digitalisation era: The impact of Automated Guided Vehicles. Journal of Cleaner Production. 2017; 142 ():3970-3984.
Chicago/Turabian StyleDimitrios Bechtsis; Naoum Tsolakis; Dimitrios Vlachos; Eleftherios Iakovou. 2017. "Sustainable supply chain management in the digitalisation era: The impact of Automated Guided Vehicles." Journal of Cleaner Production 142, no. : 3970-3984.
Dimitrios Bechtsis; Naoum Tsolakis; Menippos Vouzas; Dimitrios Vlachos. Industry 4.0: Sustainable material handling processes in industrial environments. Computer Aided Chemical Engineering 2017, 2281 -2286.
AMA StyleDimitrios Bechtsis, Naoum Tsolakis, Menippos Vouzas, Dimitrios Vlachos. Industry 4.0: Sustainable material handling processes in industrial environments. Computer Aided Chemical Engineering. 2017; ():2281-2286.
Chicago/Turabian StyleDimitrios Bechtsis; Naoum Tsolakis; Menippos Vouzas; Dimitrios Vlachos. 2017. "Industry 4.0: Sustainable material handling processes in industrial environments." Computer Aided Chemical Engineering , no. : 2281-2286.
The objective of this paper is to present an experience in the challenge of using Internet and mobile Internet technologies for the development of a Web/WAP (wireless application protocol)-based medical application with data mining support. This medical application is focused on the development, diffusion and use of the technology in response to specific domain needs of medical experts in the area of cardiology, especially for the patients after by-pass operation.
Petros Daras; D.K. Bechtsis; M.G. Strintzis. A Web/WAP-based system for remote monitoring patients with data mining support. 6th Seminar on Neural Network Applications in Electrical Engineering NEUREL-02 2004, 1 .
AMA StylePetros Daras, D.K. Bechtsis, M.G. Strintzis. A Web/WAP-based system for remote monitoring patients with data mining support. 6th Seminar on Neural Network Applications in Electrical Engineering NEUREL-02. 2004; ():1.
Chicago/Turabian StylePetros Daras; D.K. Bechtsis; M.G. Strintzis. 2004. "A Web/WAP-based system for remote monitoring patients with data mining support." 6th Seminar on Neural Network Applications in Electrical Engineering NEUREL-02 , no. : 1.
Petros Daras; D. Palaka; V. Giagourta; Dimitrios Bechtsis. A novel peer-to-peer payment protocol. The IEEE Region 8 EUROCON 2003. Computer as a Tool. 2004, 1 .
AMA StylePetros Daras, D. Palaka, V. Giagourta, Dimitrios Bechtsis. A novel peer-to-peer payment protocol. The IEEE Region 8 EUROCON 2003. Computer as a Tool.. 2004; ():1.
Chicago/Turabian StylePetros Daras; D. Palaka; V. Giagourta; Dimitrios Bechtsis. 2004. "A novel peer-to-peer payment protocol." The IEEE Region 8 EUROCON 2003. Computer as a Tool. , no. : 1.
A method for image segmentation, by means of a wavelet oriented watershed algorithm is presented. The watershed transform was implemented by simulated immersion and the wavelet transform was applied using the Haar basis. A pyramid model was formed, using the original image as a basement level and for the upper levels the output of the low-low (L-L) wavelet filter. By applying the watershed algorithm in each of those pyramid levels we segment the image by using progressively lower resolution inputs. The initially segmented images are the input to a computationally region merging process using spatial and scale similarity. In the merging phase, due to noise-related over-segmentation, the region merging decisions are determined through homogeneity and similarity criteria based on wavelet coefficients. Each segmented region has the mean, second and third-order central moment values of the wavelet coefficients calculated. The progressive approach operates from the highest to the lowest pyramid level, using a superposition of these coefficients between successive levels as a quantitative measure for similarity criterion in region merging in the current level. Experimental results demonstrate a satisfactory performance of the proposed method when compared to the single level approach.
Dimitrios K. Bechtsis; Georgios K. Giannikis; Serafim N. Efstratiadis; Panos Liatsis. A PROGRESSIVE WAVELET ORIENTED WATERSHED TECHNIQUE FOR IMAGE SEGMENTATION. Recent Trends in Multimedia Information Processing 2002, 327 -333.
AMA StyleDimitrios K. Bechtsis, Georgios K. Giannikis, Serafim N. Efstratiadis, Panos Liatsis. A PROGRESSIVE WAVELET ORIENTED WATERSHED TECHNIQUE FOR IMAGE SEGMENTATION. Recent Trends in Multimedia Information Processing. 2002; ():327-333.
Chicago/Turabian StyleDimitrios K. Bechtsis; Georgios K. Giannikis; Serafim N. Efstratiadis; Panos Liatsis. 2002. "A PROGRESSIVE WAVELET ORIENTED WATERSHED TECHNIQUE FOR IMAGE SEGMENTATION." Recent Trends in Multimedia Information Processing , no. : 327-333.