際際滷shows by User: ioannismandourarakis / http://www.slideshare.net/images/logo.gif 際際滷shows by User: ioannismandourarakis / Tue, 12 Feb 2019 21:48:16 GMT 際際滷Share feed for 際際滷shows by User: ioannismandourarakis Unified system- and circuit-level optimization of res-based power supply systems for the nodes of wireless sensor networks - abstract /slideshow/unified-system-and-circuitlevel-optimization-of-resbased-power-supply-systems-for-the-nodes-of-wireless-sensor-networks-abstract/131537386 unifiedsystem-andcircuit-leveloptimizationofres-basedpowersupplysystemsforthenodesofwirelesssensorne-190212214816
An extensive utilization of wireless sensor networks has evolved during the last years for monitoring various environmental and artificial processes. When operating in remote locations, the nodes of wireless sensor networks are typically power supplied by an energy production and management system, comprising low-power renewable energy sources, a power electronic converter, and a battery-based energy storage unit. In this paper, a methodology is proposed for optimally designing the energy production and processing system of a wireless sensor network node simultaneously at both the renewable power-supply system level and the power converter circuit level, through a unified design process. The impact of the objective function type on the power-supply design is also investigated in this paper. Design optimization and experimental results are presented, which demonstrate that the optimized power-supply structures derived by applying the proposed optimization technique exhibit lower cost of generated energy compared to partially optimized or totally nonoptimized structures and by that reduce the cost of the overall wireless sensor network node.]]>
An extensive utilization of wireless sensor networks has evolved during the last years for monitoring various environmental and artificial processes. When operating in remote locations, the nodes of wireless sensor networks are typically power supplied by an energy production and management system, comprising low-power renewable energy sources, a power electronic converter, and a battery-based energy storage unit. In this paper, a methodology is proposed for optimally designing the energy production and processing system of a wireless sensor network node simultaneously at both the renewable power-supply system level and the power converter circuit level, through a unified design process. The impact of the objective function type on the power-supply design is also investigated in this paper. Design optimization and experimental results are presented, which demonstrate that the optimized power-supply structures derived by applying the proposed optimization technique exhibit lower cost of generated energy compared to partially optimized or totally nonoptimized structures and by that reduce the cost of the overall wireless sensor network node.]]> Tue, 12 Feb 2019 21:48:16 GMT /slideshow/unified-system-and-circuitlevel-optimization-of-resbased-power-supply-systems-for-the-nodes-of-wireless-sensor-networks-abstract/131537386 ioannismandourarakis@slideshare.net(ioannismandourarakis) Unified system- and circuit-level optimization of res-based power supply systems for the nodes of wireless sensor networks - abstract ioannismandourarakis An extensive utilization of wireless sensor networks has evolved during the last years for monitoring various environmental and artificial processes. When operating in remote locations, the nodes of wireless sensor networks are typically power supplied by an energy production and management system, comprising low-power renewable energy sources, a power electronic converter, and a battery-based energy storage unit. In this paper, a methodology is proposed for optimally designing the energy production and processing system of a wireless sensor network node simultaneously at both the renewable power-supply system level and the power converter circuit level, through a unified design process. The impact of the objective function type on the power-supply design is also investigated in this paper. Design optimization and experimental results are presented, which demonstrate that the optimized power-supply structures derived by applying the proposed optimization technique exhibit lower cost of generated energy compared to partially optimized or totally nonoptimized structures and by that reduce the cost of the overall wireless sensor network node. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/unifiedsystem-andcircuit-leveloptimizationofres-basedpowersupplysystemsforthenodesofwirelesssensorne-190212214816-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> An extensive utilization of wireless sensor networks has evolved during the last years for monitoring various environmental and artificial processes. When operating in remote locations, the nodes of wireless sensor networks are typically power supplied by an energy production and management system, comprising low-power renewable energy sources, a power electronic converter, and a battery-based energy storage unit. In this paper, a methodology is proposed for optimally designing the energy production and processing system of a wireless sensor network node simultaneously at both the renewable power-supply system level and the power converter circuit level, through a unified design process. The impact of the objective function type on the power-supply design is also investigated in this paper. Design optimization and experimental results are presented, which demonstrate that the optimized power-supply structures derived by applying the proposed optimization technique exhibit lower cost of generated energy compared to partially optimized or totally nonoptimized structures and by that reduce the cost of the overall wireless sensor network node.
Unified system- and circuit-level optimization of res-based power supply systems for the nodes of wireless sensor networks - abstract from Ioannis Mandourarakis
]]> 38 1 https://cdn.slidesharecdn.com/ss_thumbnails/unifiedsystem-andcircuit-leveloptimizationofres-basedpowersupplysystemsforthenodesofwirelesssensorne-190212214816-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Building a Recommendation Platform For E-Commerce Businesses Based on Hybrid Content Based - Collaborative Filtering And Web 2.0 Concepts /slideshow/building-a-recommendation-platform-for-ecommerce-businesses-based-on-hybrid-content-based-collaborative-filtering-and-web-20-concepts/14332801 buildingamodernrecommendationplatform-120918101702-phpapp02
We propose an automatic recommendation platform for e-commerce businesses based on multicriteria analysis and hybrid content-based - collaborative filtering, tailored to e-shops and cross-product category analysis, build with Web 2.0 concepts in mind. We are going to describe the input variables as well as methods to obtain them without frustrating customers, possible ways to pre-process the data and create a common query interface, suggest the recommendations output across a variety of scenarios and finally discuss metrics that can be used to measure the real return of the system.]]>
We propose an automatic recommendation platform for e-commerce businesses based on multicriteria analysis and hybrid content-based - collaborative filtering, tailored to e-shops and cross-product category analysis, build with Web 2.0 concepts in mind. We are going to describe the input variables as well as methods to obtain them without frustrating customers, possible ways to pre-process the data and create a common query interface, suggest the recommendations output across a variety of scenarios and finally discuss metrics that can be used to measure the real return of the system.]]> Tue, 18 Sep 2012 10:17:01 GMT /slideshow/building-a-recommendation-platform-for-ecommerce-businesses-based-on-hybrid-content-based-collaborative-filtering-and-web-20-concepts/14332801 ioannismandourarakis@slideshare.net(ioannismandourarakis) Building a Recommendation Platform For E-Commerce Businesses Based on Hybrid Content Based - Collaborative Filtering And Web 2.0 Concepts ioannismandourarakis We propose an automatic recommendation platform for e-commerce businesses based on multicriteria analysis and hybrid content-based - collaborative filtering, tailored to e-shops and cross-product category analysis, build with Web 2.0 concepts in mind. We are going to describe the input variables as well as methods to obtain them without frustrating customers, possible ways to pre-process the data and create a common query interface, suggest the recommendations output across a variety of scenarios and finally discuss metrics that can be used to measure the real return of the system. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/buildingamodernrecommendationplatform-120918101702-phpapp02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> We propose an automatic recommendation platform for e-commerce businesses based on multicriteria analysis and hybrid content-based - collaborative filtering, tailored to e-shops and cross-product category analysis, build with Web 2.0 concepts in mind. We are going to describe the input variables as well as methods to obtain them without frustrating customers, possible ways to pre-process the data and create a common query interface, suggest the recommendations output across a variety of scenarios and finally discuss metrics that can be used to measure the real return of the system.
Building a Recommendation Platform For E-Commerce Businesses Based on Hybrid Content Based - Collaborative Filtering And Web 2.0 Concepts from Ioannis Mandourarakis
]]> 767 3 https://cdn.slidesharecdn.com/ss_thumbnails/buildingamodernrecommendationplatform-120918101702-phpapp02-thumbnail.jpg?width=120&height=120&fit=bounds document Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Research to implement a Renewable Energy Management Hybrid System in a residential and/or industrial field using Fuzzy Logic /slideshow/bsc-thesis-ioannis-mandourarakis/13430787 random-120623140326-phpapp01
English (Ioannis Mandourarakis) (Greek will also follow below) This paper deals with the design of a Hybrid Power Source Management System, consisted of (but not limited to) three different power producing sources surrounded by the appropriate control logic modules. The RES model is developed around a Wind Turbine, an array of Photovoltaic cells and a Fuel Cell stack, all interconnected by the means of the papers proposed architecture. The system converts wind, solar and chemical power (inputs) into electrical power and supplies it in a way that it can be fed either on a grid or an autonomous worksite (outputs). The unpredictable (stochastic) behavior of both the power supplement and the power consumption sides introduce a considerable control challenge. The system must be able to process and deliver the power needed by the facilities without any interruptions or wastes, and it must always deliver in the most efficient and conditioned way possible (regardless of all the changes that occur on instant power and load values). Special care was given to purge any instability issues that are introduced as the result of various uncertainties, such as intensity and direction of wind, rain, temperature and fuel composition heterogeneity. For all of the above mentioned reasons involved, the paper proposes the decentralized Fuzzy Logic Control, the use of Artificial Neural Network mechanisms and the improvement of the P&O algorithm (by using steps of variable length). The performance of the proposed system is found to be superior by outperforming any other conventional non-linear control techniques. Greek (略僚僚侶 留僚隆凌留略虜侶) 裡凌 留僚 竜旅竜旅流慮侶虜竜 侶 竜隆溜留侶 竜僚 硫旅隆旅虜凌 流亮留凌 隆旅留竜溜旅侶 僚 僚 流旅僚 亮凌ﾎ 竜僚劉粒竜旅留 留凌竜了凌亮竜僚凌 留 3 隆旅留凌竜旅虜凌 留凌竜溜 虜留旅 侶僚 虜留略了了侶了侶 了凌粒旅虜流 竜了劉粒凌. 里凌 亮凌僚劉了凌 留留溜龍竜留旅 留 亮旅留 留僚竜亮凌粒竜僚僚流旅留, 亮旅留 凌旅溜留 凌硫凌了留虜ﾎ 虜留旅 亮旅留 凌旅溜留 虜竜了ﾎ 虜留溜亮凌, 隆旅留僚隆竜隆竜亮劉僚竜 亮竜留両 凌 硫略竜旅 侶 凌竜旅僚亮竜僚侶 留旅竜虜凌僚旅虜流. 旅 侶粒劉 亮竜留劉凌僚 侶 了了竜粒亮竜僚侶 竜僚劉粒竜旅留 竜 侶了竜虜旅虜流 虜留旅 凌 侶亮留 留僚留了留亮硫略僚竜旅 侶僚 留凌隆凌旅虜流 (亮劉 虜留略了了侶了僚 MPPT 留了粒凌溜慮亮僚) 虜留旅 侶僚 留僚竜了了旅流 (亮劉 虜留略了了侶了侶 凌了旅旅虜流 隆旅留亮凌旅留亮凌) 凌凌隆侶侶 僚 凌溜僚 侶 竜虜略凌竜 竜粒虜留略留侶. 裡侶亮留溜留 隆慮侶虜竜 凌僚 凌 亮竜 凌僚 凌凌溜凌 凌 虜虜了亮留 竜了劉粒凌 凌僚溜龍竜旅 粒旅留 侶僚 留隆旅略了竜旅侶 留凌流 留慮竜流 旅凌 ]]>
English (Ioannis Mandourarakis) (Greek will also follow below) This paper deals with the design of a Hybrid Power Source Management System, consisted of (but not limited to) three different power producing sources surrounded by the appropriate control logic modules. The RES model is developed around a Wind Turbine, an array of Photovoltaic cells and a Fuel Cell stack, all interconnected by the means of the papers proposed architecture. The system converts wind, solar and chemical power (inputs) into electrical power and supplies it in a way that it can be fed either on a grid or an autonomous worksite (outputs). The unpredictable (stochastic) behavior of both the power supplement and the power consumption sides introduce a considerable control challenge. The system must be able to process and deliver the power needed by the facilities without any interruptions or wastes, and it must always deliver in the most efficient and conditioned way possible (regardless of all the changes that occur on instant power and load values). Special care was given to purge any instability issues that are introduced as the result of various uncertainties, such as intensity and direction of wind, rain, temperature and fuel composition heterogeneity. For all of the above mentioned reasons involved, the paper proposes the decentralized Fuzzy Logic Control, the use of Artificial Neural Network mechanisms and the improvement of the P&O algorithm (by using steps of variable length). The performance of the proposed system is found to be superior by outperforming any other conventional non-linear control techniques. Greek (略僚僚侶 留僚隆凌留略虜侶) 裡凌 留僚 竜旅竜旅流慮侶虜竜 侶 竜隆溜留侶 竜僚 硫旅隆旅虜凌 流亮留凌 隆旅留竜溜旅侶 僚 僚 流旅僚 亮凌ﾎ 竜僚劉粒竜旅留 留凌竜了凌亮竜僚凌 留 3 隆旅留凌竜旅虜凌 留凌竜溜 虜留旅 侶僚 虜留略了了侶了侶 了凌粒旅虜流 竜了劉粒凌. 里凌 亮凌僚劉了凌 留留溜龍竜留旅 留 亮旅留 留僚竜亮凌粒竜僚僚流旅留, 亮旅留 凌旅溜留 凌硫凌了留虜ﾎ 虜留旅 亮旅留 凌旅溜留 虜竜了ﾎ 虜留溜亮凌, 隆旅留僚隆竜隆竜亮劉僚竜 亮竜留両 凌 硫略竜旅 侶 凌竜旅僚亮竜僚侶 留旅竜虜凌僚旅虜流. 旅 侶粒劉 亮竜留劉凌僚 侶 了了竜粒亮竜僚侶 竜僚劉粒竜旅留 竜 侶了竜虜旅虜流 虜留旅 凌 侶亮留 留僚留了留亮硫略僚竜旅 侶僚 留凌隆凌旅虜流 (亮劉 虜留略了了侶了僚 MPPT 留了粒凌溜慮亮僚) 虜留旅 侶僚 留僚竜了了旅流 (亮劉 虜留略了了侶了侶 凌了旅旅虜流 隆旅留亮凌旅留亮凌) 凌凌隆侶侶 僚 凌溜僚 侶 竜虜略凌竜 竜粒虜留略留侶. 裡侶亮留溜留 隆慮侶虜竜 凌僚 凌 亮竜 凌僚 凌凌溜凌 凌 虜虜了亮留 竜了劉粒凌 凌僚溜龍竜旅 粒旅留 侶僚 留隆旅略了竜旅侶 留凌流 留慮竜流 旅凌 ]]> Sat, 23 Jun 2012 14:03:24 GMT /slideshow/bsc-thesis-ioannis-mandourarakis/13430787 ioannismandourarakis@slideshare.net(ioannismandourarakis) Research to implement a Renewable Energy Management Hybrid System in a residential and/or industrial field using Fuzzy Logic ioannismandourarakis English (Ioannis Mandourarakis) (Greek will also follow below) This paper deals with the design of a Hybrid Power Source Management System, consisted of (but not limited to) three different power producing sources surrounded by the appropriate control logic modules. The RES model is developed around a Wind Turbine, an array of Photovoltaic cells and a Fuel Cell stack, all interconnected by the means of the papers proposed architecture. The system converts wind, solar and chemical power (inputs) into electrical power and supplies it in a way that it can be fed either on a grid or an autonomous worksite (outputs). The unpredictable (stochastic) behavior of both the power supplement and the power consumption sides introduce a considerable control challenge. The system must be able to process and deliver the power needed by the facilities without any interruptions or wastes, and it must always deliver in the most efficient and conditioned way possible (regardless of all the changes that occur on instant power and load values). Special care was given to purge any instability issues that are introduced as the result of various uncertainties, such as intensity and direction of wind, rain, temperature and fuel composition heterogeneity. For all of the above mentioned reasons involved, the paper proposes the decentralized Fuzzy Logic Control, the use of Artificial Neural Network mechanisms and the improvement of the P&O algorithm (by using steps of variable length). The performance of the proposed system is found to be superior by outperforming any other conventional non-linear control techniques. Greek (略僚僚侶 留僚隆凌留略虜侶) 裡凌 留僚 竜旅竜旅流慮侶虜竜 侶 竜隆溜留侶 竜僚 硫旅隆旅虜凌 流亮留凌 隆旅留竜溜旅侶 僚 僚 流旅僚 亮凌ﾎ 竜僚劉粒竜旅留 留凌竜了凌亮竜僚凌 留 3 隆旅留凌竜旅虜凌 留凌竜溜 虜留旅 侶僚 虜留略了了侶了侶 了凌粒旅虜流 竜了劉粒凌. 里凌 亮凌僚劉了凌 留留溜龍竜留旅 留 亮旅留 留僚竜亮凌粒竜僚僚流旅留, 亮旅留 凌旅溜留 凌硫凌了留虜ﾎ 虜留旅 亮旅留 凌旅溜留 虜竜了ﾎ 虜留溜亮凌, 隆旅留僚隆竜隆竜亮劉僚竜 亮竜留両 凌 硫略竜旅 侶 凌竜旅僚亮竜僚侶 留旅竜虜凌僚旅虜流. 旅 侶粒劉 亮竜留劉凌僚 侶 了了竜粒亮竜僚侶 竜僚劉粒竜旅留 竜 侶了竜虜旅虜流 虜留旅 凌 侶亮留 留僚留了留亮硫略僚竜旅 侶僚 留凌隆凌旅虜流 (亮劉 虜留略了了侶了僚 MPPT 留了粒凌溜慮亮僚) 虜留旅 侶僚 留僚竜了了旅流 (亮劉 虜留略了了侶了侶 凌了旅旅虜流 隆旅留亮凌旅留亮凌) 凌凌隆侶侶 僚 凌溜僚 侶 竜虜略凌竜 竜粒虜留略留侶. 裡侶亮留溜留 隆慮侶虜竜 凌僚 凌 亮竜 凌僚 凌凌溜凌 凌 虜虜了亮留 竜了劉粒凌 凌僚溜龍竜旅 粒旅留 侶僚 留隆旅略了竜旅侶 留凌流 留慮竜流 旅凌 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/random-120623140326-phpapp01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> English (Ioannis Mandourarakis) (Greek will also follow below) This paper deals with the design of a Hybrid Power Source Management System, consisted of (but not limited to) three different power producing sources surrounded by the appropriate control logic modules. The RES model is developed around a Wind Turbine, an array of Photovoltaic cells and a Fuel Cell stack, all interconnected by the means of the papers proposed architecture. The system converts wind, solar and chemical power (inputs) into electrical power and supplies it in a way that it can be fed either on a grid or an autonomous worksite (outputs). The unpredictable (stochastic) behavior of both the power supplement and the power consumption sides introduce a considerable control challenge. The system must be able to process and deliver the power needed by the facilities without any interruptions or wastes, and it must always deliver in the most efficient and conditioned way possible (regardless of all the changes that occur on instant power and load values). Special care was given to purge any instability issues that are introduced as the result of various uncertainties, such as intensity and direction of wind, rain, temperature and fuel composition heterogeneity. For all of the above mentioned reasons involved, the paper proposes the decentralized Fuzzy Logic Control, the use of Artificial Neural Network mechanisms and the improvement of the P&amp;O algorithm (by using steps of variable length). The performance of the proposed system is found to be superior by outperforming any other conventional non-linear control techniques. Greek (略僚僚侶 留僚隆凌留略虜侶) 裡凌 留僚 竜旅竜旅流慮侶虜竜 侶 竜隆溜留侶 竜僚 硫旅隆旅虜凌 流亮留凌 隆旅留竜溜旅侶 僚 僚 流旅僚 亮凌ﾎ 竜僚劉粒竜旅留 留凌竜了凌亮竜僚凌 留 3 隆旅留凌竜旅虜凌 留凌竜溜 虜留旅 侶僚 虜留略了了侶了侶 了凌粒旅虜流 竜了劉粒凌. 里凌 亮凌僚劉了凌 留留溜龍竜留旅 留 亮旅留 留僚竜亮凌粒竜僚僚流旅留, 亮旅留 凌旅溜留 凌硫凌了留虜ﾎ 虜留旅 亮旅留 凌旅溜留 虜竜了ﾎ 虜留溜亮凌, 隆旅留僚隆竜隆竜亮劉僚竜 亮竜留両 凌 硫略竜旅 侶 凌竜旅僚亮竜僚侶 留旅竜虜凌僚旅虜流. 旅 侶粒劉 亮竜留劉凌僚 侶 了了竜粒亮竜僚侶 竜僚劉粒竜旅留 竜 侶了竜虜旅虜流 虜留旅 凌 侶亮留 留僚留了留亮硫略僚竜旅 侶僚 留凌隆凌旅虜流 (亮劉 虜留略了了侶了僚 MPPT 留了粒凌溜慮亮僚) 虜留旅 侶僚 留僚竜了了旅流 (亮劉 虜留略了了侶了侶 凌了旅旅虜流 隆旅留亮凌旅留亮凌) 凌凌隆侶侶 僚 凌溜僚 侶 竜虜略凌竜 竜粒虜留略留侶. 裡侶亮留溜留 隆慮侶虜竜 凌僚 凌 亮竜 凌僚 凌凌溜凌 凌 虜虜了亮留 竜了劉粒凌 凌僚溜龍竜旅 粒旅留 侶僚 留隆旅略了竜旅侶 留凌流 留慮竜流 旅凌
Research to implement a Renewable Energy Management Hybrid System in a residential and/or industrial field using Fuzzy Logic from Ioannis Mandourarakis
]]> 533 3 https://cdn.slidesharecdn.com/ss_thumbnails/random-120623140326-phpapp01-thumbnail.jpg?width=120&height=120&fit=bounds document White http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 https://cdn.slidesharecdn.com/profile-photo-ioannismandourarakis-48x48.jpg?cb=1591992066 I always loved art. I always. loved. art. Past tense right next to 'always': a rather 'streched' definition of time, where 'time' can be percepted as a continuum of captured events. Like history. Yes, I am in the right place, the field is called 'Summary', and, yes, I always loved art. :-) Art in all its kinds or formats, including the expressing mediums of science. The overwhelming feeling will be right there triggered anytime, for any concept, let this be a painting, a song or a sophisticated engineering design. Sometimes graphs may resemble to a visual art of mathematics. And mathematics, our applied language for nature, can sometimes sound quite poetic... :-) --- I have been messi... mandourarakis.com/ https://cdn.slidesharecdn.com/ss_thumbnails/unifiedsystem-andcircuit-leveloptimizationofres-basedpowersupplysystemsforthenodesofwirelesssensorne-190212214816-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/unified-system-and-circuitlevel-optimization-of-resbased-power-supply-systems-for-the-nodes-of-wireless-sensor-networks-abstract/131537386 Unified system- and ci... https://cdn.slidesharecdn.com/ss_thumbnails/buildingamodernrecommendationplatform-120918101702-phpapp02-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/building-a-recommendation-platform-for-ecommerce-businesses-based-on-hybrid-content-based-collaborative-filtering-and-web-20-concepts/14332801 Building a Recommendat... https://cdn.slidesharecdn.com/ss_thumbnails/random-120623140326-phpapp01-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/bsc-thesis-ioannis-mandourarakis/13430787 Research to implement ...