The Experts below are selected from a list of 3096 Experts worldwide ranked by ideXlab platform
Jens Bange - One of the best experts on this subject based on the ideXlab platform.
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measuring the local wind field at an escarpment using small Remotely Piloted Aircraft
Renewable Energy, 2017Co-Authors: Norman Wildmann, Sarah Bernard, Jens BangeAbstract:A Remotely-Piloted Aircraft (RPA) is used in this study to collect high resolution data of the flow in complex terrain at a potential site for a wind energy test field in Southern Germany. It is described how such a system was used to retrieve information about the flow field, turbulence intensity, vertical wind components and shear at an escarpment site that is known for its high wind potential. Measurements were done with the Aircraft on several days with varying wind and weather conditions, while the focus of the study is on the characterisation of the flow field in main wind direction and neutral stratification. It is shown that flow inclination of up to 30° is found over the escarpment, but attenuates within a few hundred metres downstream. The formation of a reattached boundary layer could be measured, as well as an increased turbulence intensity in the reattachment zone. The results are highly valuable information for the planning of a wind energy test site at the location of the experiment and can also be used for the validation of numerical simulations and remote sensing instruments.
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masc a small Remotely Piloted Aircraft rpa for wind energy research
Advances in Science and Research, 2014Co-Authors: Norman Wildmann, Martin Hofsas, Florian Weimer, Alexander Joos, Jens BangeAbstract:Abstract. Originally designed for atmospheric boundary layer research, the MASC (Multipurpose Airborne Sensor Carrier) RPA (Remotely Piloted Aircraft, also known as Unmanned Aerial Vehicle, UAV) is capable of making in-situ measurements of temperature, humidity and wind in high resolution and precision. The autopilot system ROCS (Research Onboard Computer System) enables the Aircraft to fly pre-defined routes between waypoints at constant altitude and airspeed. The system manages to operate in wind speeds up to 15 m s−1 safely. It is shown that a MASC can fly as close as one rotor diameter upstream and downstream of running wind turbines at these wind speeds and take valuable data of incoming flow and wake. The flexible operation of an RPA at the size of a MASC can be a major advantage of the system compared to tower measurements and remote sensing in wind energy research. In the project "Lidar Complex" comparisons of RPA measurements with lidar systems and tower measurements are carried out at two different test sites. First results, including turbulence and wake measurements, from a campaign in autumn 2013 are presented.
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MASC – a small Remotely Piloted Aircraft (RPA) for wind energy research
Advances in Science and Research, 2014Co-Authors: Norman Wildmann, Florian Weimer, Alexander Joos, Martin Hofsäß, Jens BangeAbstract:Abstract. Originally designed for atmospheric boundary layer research, the MASC (Multipurpose Airborne Sensor Carrier) RPA (Remotely Piloted Aircraft, also known as Unmanned Aerial Vehicle, UAV) is capable of making in-situ measurements of temperature, humidity and wind in high resolution and precision. The autopilot system ROCS (Research Onboard Computer System) enables the Aircraft to fly pre-defined routes between waypoints at constant altitude and airspeed. The system manages to operate in wind speeds up to 15 m s−1 safely. It is shown that a MASC can fly as close as one rotor diameter upstream and downstream of running wind turbines at these wind speeds and take valuable data of incoming flow and wake. The flexible operation of an RPA at the size of a MASC can be a major advantage of the system compared to tower measurements and remote sensing in wind energy research. In the project "Lidar Complex" comparisons of RPA measurements with lidar systems and tower measurements are carried out at two different test sites. First results, including turbulence and wake measurements, from a campaign in autumn 2013 are presented.
Norman Wildmann - One of the best experts on this subject based on the ideXlab platform.
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measuring the local wind field at an escarpment using small Remotely Piloted Aircraft
Renewable Energy, 2017Co-Authors: Norman Wildmann, Sarah Bernard, Jens BangeAbstract:A Remotely-Piloted Aircraft (RPA) is used in this study to collect high resolution data of the flow in complex terrain at a potential site for a wind energy test field in Southern Germany. It is described how such a system was used to retrieve information about the flow field, turbulence intensity, vertical wind components and shear at an escarpment site that is known for its high wind potential. Measurements were done with the Aircraft on several days with varying wind and weather conditions, while the focus of the study is on the characterisation of the flow field in main wind direction and neutral stratification. It is shown that flow inclination of up to 30° is found over the escarpment, but attenuates within a few hundred metres downstream. The formation of a reattached boundary layer could be measured, as well as an increased turbulence intensity in the reattachment zone. The results are highly valuable information for the planning of a wind energy test site at the location of the experiment and can also be used for the validation of numerical simulations and remote sensing instruments.
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masc a small Remotely Piloted Aircraft rpa for wind energy research
Advances in Science and Research, 2014Co-Authors: Norman Wildmann, Martin Hofsas, Florian Weimer, Alexander Joos, Jens BangeAbstract:Abstract. Originally designed for atmospheric boundary layer research, the MASC (Multipurpose Airborne Sensor Carrier) RPA (Remotely Piloted Aircraft, also known as Unmanned Aerial Vehicle, UAV) is capable of making in-situ measurements of temperature, humidity and wind in high resolution and precision. The autopilot system ROCS (Research Onboard Computer System) enables the Aircraft to fly pre-defined routes between waypoints at constant altitude and airspeed. The system manages to operate in wind speeds up to 15 m s−1 safely. It is shown that a MASC can fly as close as one rotor diameter upstream and downstream of running wind turbines at these wind speeds and take valuable data of incoming flow and wake. The flexible operation of an RPA at the size of a MASC can be a major advantage of the system compared to tower measurements and remote sensing in wind energy research. In the project "Lidar Complex" comparisons of RPA measurements with lidar systems and tower measurements are carried out at two different test sites. First results, including turbulence and wake measurements, from a campaign in autumn 2013 are presented.
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MASC – a small Remotely Piloted Aircraft (RPA) for wind energy research
Advances in Science and Research, 2014Co-Authors: Norman Wildmann, Florian Weimer, Alexander Joos, Martin Hofsäß, Jens BangeAbstract:Abstract. Originally designed for atmospheric boundary layer research, the MASC (Multipurpose Airborne Sensor Carrier) RPA (Remotely Piloted Aircraft, also known as Unmanned Aerial Vehicle, UAV) is capable of making in-situ measurements of temperature, humidity and wind in high resolution and precision. The autopilot system ROCS (Research Onboard Computer System) enables the Aircraft to fly pre-defined routes between waypoints at constant altitude and airspeed. The system manages to operate in wind speeds up to 15 m s−1 safely. It is shown that a MASC can fly as close as one rotor diameter upstream and downstream of running wind turbines at these wind speeds and take valuable data of incoming flow and wake. The flexible operation of an RPA at the size of a MASC can be a major advantage of the system compared to tower measurements and remote sensing in wind energy research. In the project "Lidar Complex" comparisons of RPA measurements with lidar systems and tower measurements are carried out at two different test sites. First results, including turbulence and wake measurements, from a campaign in autumn 2013 are presented.
Andrea Viggiano - One of the best experts on this subject based on the ideXlab platform.
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stress profile in Remotely Piloted Aircraft crewmembers during 2 h operating mission
Frontiers in Physiology, 2018Co-Authors: Anna Valenzano, Fiorenzo Moscatelli, Antonio Ivano Triggiani, Raffaele Orsitto, Giovanni Fiorentino, Giovanna Zezza, Antonietta Messina, Vincenzo Monda, Monica Salerno, Andrea ViggianoAbstract:Emotional stability is a key component for individual and team performance during both routine work and management of unexpected emergencies. Using a psycho-physiological approach operating the stress response was investigated in drone operators during operating conditions. Methods. Salivary-amylase (sAA), galvanic skin response (GSR) and anxiety were assessed over a 2-hours operating flight. Results. Compared to baseline values, operating GSR and sAA values increased in operating conditions. Moreover, these values were higher in Pilots than in Sensor Operators, indicating that their stress response was greater. These results were associated with an increase in anxiety level, highlighting a relationship between autonomic reactivity and anxiety component. Conclusions. This is the first report providing experimental evidences of the stress response related to Remotely Piloted Aircraft operations.
Anna Valenzano - One of the best experts on this subject based on the ideXlab platform.
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stress profile in Remotely Piloted Aircraft crewmembers during 2 h operating mission
Frontiers in Physiology, 2018Co-Authors: Anna Valenzano, Fiorenzo Moscatelli, Antonio Ivano Triggiani, Raffaele Orsitto, Giovanni Fiorentino, Giovanna Zezza, Antonietta Messina, Vincenzo Monda, Monica Salerno, Andrea ViggianoAbstract:Emotional stability is a key component for individual and team performance during both routine work and management of unexpected emergencies. Using a psycho-physiological approach operating the stress response was investigated in drone operators during operating conditions. Methods. Salivary-amylase (sAA), galvanic skin response (GSR) and anxiety were assessed over a 2-hours operating flight. Results. Compared to baseline values, operating GSR and sAA values increased in operating conditions. Moreover, these values were higher in Pilots than in Sensor Operators, indicating that their stress response was greater. These results were associated with an increase in anxiety level, highlighting a relationship between autonomic reactivity and anxiety component. Conclusions. This is the first report providing experimental evidences of the stress response related to Remotely Piloted Aircraft operations.
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STRESS PROFILE IN Remotely Piloted Aircraft OPERATORS: A CASE STUDY
Italian Journal of Aerospace Medicine, 2017Co-Authors: Anna Valenzano, Fiorenzo Moscatelli, Antonio Ivano Triggiani, Michela Anna Pia Ciliberti, Caterina La Torre, Annamaria Petito, Raffaele Orsitto, Giovanni Fiorentino, Giovanna Zezza, Giuseppe CibelliAbstract:Objectives. By using a psycho-physiological approach,during operational conditions, the stress response was investigated in drone operators. Methods. Salivary-amylase (sAA), galvanic skin response (GSR) and state anxiety were assessed throughout a 2-hours operational flight. Results . Compared to baseline values, in operational conditions GSR and sAA values increased. Moreover, these values were higher in Pilot, than in Sensor Operator, suggesting that his stress response was greater. Such as results were paralleled by the increase in the state anxiety, highlighting a relationship between autonomic reactivity and anxiety component. Conclusions . This is the first report providing experimental evidences of the stress response related to Remotely Piloted Aircraft operations.
Hakon Bjorheim Abrahamsen - One of the best experts on this subject based on the ideXlab platform.
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Real-time video from Remotely Piloted Aircraft systems (RPAS): a tool for improved decision-making in mass casualty incidents
International Journal of Technology Policy and Management, 2019Co-Authors: Eirik Bjorheim Abrahamsen, Jon Tømmerås Selvik, Eivind L. Rake, Sindre Høyland, Hakon Bjorheim AbrahamsenAbstract:In mass casualty incidents, the emergency services must make several important and challenging strategic decisions, characterised by large uncertainties. In this paper, we explore and assess real-time video from Remotely Piloted Aircraft systems (RPAS) as a key tool for reducing uncertainties and thereby improving the situation assessment and decision-making in mass casualty incidents. To study the usefulness of such a technical solution, we consider two mass casualty incidents that occurred in Norway in 2011. Our study shows that a number of uncertainty factors related to missing information, unreliable information, ambiguous or conflicting information, and complex information influenced decision-making at the Oslo government district bombing and Utoya Island shooting. We also find that the use of a Remotely Piloted Aircraft system could have reduced these uncertainties and in general improved the situation assessment in these incidents, highlighting the value of a Remotely Piloted Aircraft system in mass casualty incidents.
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a Remotely Piloted Aircraft system in major incident management concept and pilot feasibility study
BMC Emergency Medicine, 2015Co-Authors: Hakon Bjorheim AbrahamsenAbstract:Major incidents are complex, dynamic and bewildering task environments characterised by simultaneous, rapidly changing events, uncertainty and ill-structured problems. Efficient management, communication, decision-making and allocation of scarce medical resources at the chaotic scene of a major incident is challenging and often relies on sparse information and data. Communication and information sharing is primarily voice-to-voice through phone or radio on specified radio frequencies. Visual cues are abundant and difficult to communicate between teams and team members that are not co-located. The aim was to assess the concept and feasibility of using a Remotely Piloted Aircraft (RPA) system to support remote sensing in simulated major incident exercises. We carried out an experimental, pilot feasibility study. A custom-made, Remotely controlled, multirotor unmanned aerial vehicle with vertical take-off and landing was equipped with digital colour- and thermal imaging cameras, a laser beam, a mechanical gripper arm and an avalanche transceiver. We collected data in five simulated exercises: 1) mass casualty traffic accident, 2) mountain rescue, 3) avalanche with buried victims, 4) fisherman through thin ice and 5) search for casualties in the dark. The unmanned aerial vehicle was Remotely controlled, with high precision, in close proximity to air space obstacles at very low levels without compromising work on the ground. Payload capacity and tolerance to wind and turbulence were limited. Aerial video, shot from different altitudes, and remote aerial avalanche beacon search were streamed wirelessly in real time to a monitor at a ground base. Electromagnetic interference disturbed signal reception in the ground monitor. A small Remotely Piloted Aircraft can be used as an effective tool carrier, although limited by its payload capacity, wind speed and flight endurance. Remote sensing using already existing Remotely Piloted Aircraft technology in pre-hospital environments is feasible and can be used to support situation assessment and information exchange at a major incident scene. Regulations are needed to ensure the safe use of unmanned aerial vehicles in major incidents. Ethical issues are abundant.