This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)syste...This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)system connected to the local grid.The study focuses on Dakhla,Morocco,a region with vast untapped renewable energy potential.By leveraging GIS,we are innovatively analyzing geographical and environmental factors that influence optimal site selection and system design.The incorporation of VR technologies offers an unprecedented level of realism and immersion,allowing stakeholders to virtually experience the project's impact and design in a dynamic,interactive environment.This novel methodology includes extensive data collection,advanced modeling,and simulations,ensuring that the hybrid system is precisely tailored to the unique climatic and environmental conditions of Dakhla.Our analysis reveals that the region possesses a photovoltaic solar potential of approximately2400 k Wh/m^(2) per year,with an average annual wind power density of about 434 W/m^(2) at an 80-meter hub height.Productivity simulations indicate that the 20 MW hybrid system could generate approximately 60 GWh of energy per year and 1369 GWh over its 25-year lifespan.To validate these findings,we employed the System Advisor Model(SAM)software and the Global Solar Photovoltaic Atlas platform.This comprehensive and interdisciplinary approach not only provides a robust assessment of the system's feasibility but also offers valuable insights into its potential socio-economic and environmental impact.展开更多
The present study aimed to explore the effects of motionless imagery training with an avatar in virtual reality(VR)on emotion,cognition,and physiological response changes in healthy adults.Participants were 30 healthy...The present study aimed to explore the effects of motionless imagery training with an avatar in virtual reality(VR)on emotion,cognition,and physiological response changes in healthy adults.Participants were 30 healthy adults aged between 19 and 35 years.All participants were randomly divided into the experimental group(n=18),which executed the imagery training with an avatar in VR,or the control group(n=12),which merely experienced the VR without an avatar.Both groups underwent the intervention,a 20-min session,3 times a week for 6 weeks.VR experience questionnaires and physiological response changes were measured at pre-and post-test and emotional states and cognition tests were measured at pre-,post-,and follow-up test.The experimental group showed no significant changes in the Presence Questionnaire(PQ)and the Simulator Sickness Questionnaire(SSQ)after the intervention while the control group showed a significant decrease in the PQ after the intervention.In all emotional states,there were no significant differences in the interaction between times and groups.A significant main effect of time was revealed in all cognition tests except the delayed recall and the delayed recognition in K-Auditory Verbal Learning Test(K-AVLT).In physiological response changes,the experimental group showed significant improvements in the electromyogram(EMG)at rectus femoris on the left side after the intervention.Thus,imagery training with an avatar in VR can be considered to be effective for enhancements of cognitions and physiological response changes.展开更多
文摘This research pioneers the integration of geographic information systems(GIS)and 3D modeling within a virtual reality(VR)framework to assess the viability and planning of a 20 MW hybrid wind-solarphotovoltaic(PV)system connected to the local grid.The study focuses on Dakhla,Morocco,a region with vast untapped renewable energy potential.By leveraging GIS,we are innovatively analyzing geographical and environmental factors that influence optimal site selection and system design.The incorporation of VR technologies offers an unprecedented level of realism and immersion,allowing stakeholders to virtually experience the project's impact and design in a dynamic,interactive environment.This novel methodology includes extensive data collection,advanced modeling,and simulations,ensuring that the hybrid system is precisely tailored to the unique climatic and environmental conditions of Dakhla.Our analysis reveals that the region possesses a photovoltaic solar potential of approximately2400 k Wh/m^(2) per year,with an average annual wind power density of about 434 W/m^(2) at an 80-meter hub height.Productivity simulations indicate that the 20 MW hybrid system could generate approximately 60 GWh of energy per year and 1369 GWh over its 25-year lifespan.To validate these findings,we employed the System Advisor Model(SAM)software and the Global Solar Photovoltaic Atlas platform.This comprehensive and interdisciplinary approach not only provides a robust assessment of the system's feasibility but also offers valuable insights into its potential socio-economic and environmental impact.
基金supported by a National Research Foundation of Korea(NRF)grant funded by the Korean government(MIST,2017R1C1B5018351)by a National Research Foundation of Korea(NRF)grant funded by the Korea government(MIST,NRF-2020R1F1A1072241).
文摘The present study aimed to explore the effects of motionless imagery training with an avatar in virtual reality(VR)on emotion,cognition,and physiological response changes in healthy adults.Participants were 30 healthy adults aged between 19 and 35 years.All participants were randomly divided into the experimental group(n=18),which executed the imagery training with an avatar in VR,or the control group(n=12),which merely experienced the VR without an avatar.Both groups underwent the intervention,a 20-min session,3 times a week for 6 weeks.VR experience questionnaires and physiological response changes were measured at pre-and post-test and emotional states and cognition tests were measured at pre-,post-,and follow-up test.The experimental group showed no significant changes in the Presence Questionnaire(PQ)and the Simulator Sickness Questionnaire(SSQ)after the intervention while the control group showed a significant decrease in the PQ after the intervention.In all emotional states,there were no significant differences in the interaction between times and groups.A significant main effect of time was revealed in all cognition tests except the delayed recall and the delayed recognition in K-Auditory Verbal Learning Test(K-AVLT).In physiological response changes,the experimental group showed significant improvements in the electromyogram(EMG)at rectus femoris on the left side after the intervention.Thus,imagery training with an avatar in VR can be considered to be effective for enhancements of cognitions and physiological response changes.
