For safe operation of a photovoltaic generating system, an insulation monitoring function, which can immediately detect deterioration of insulation between photovoltaic module strings and the earth, is indispensable. ...
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In the face of growing demand for high-quality software solutions at reduced costs and development times, the use of open-source software (OSS) has become increasingly prevalent. This study evaluates the speed of OSS ...
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ISBN:
(数字)9798331534677
ISBN:
(纸本)9798331534684
In the face of growing demand for high-quality software solutions at reduced costs and development times, the use of open-source software (OSS) has become increasingly prevalent. This study evaluates the speed of OSS support activities—an essential quality factor for OSS users—and proposes a method for early-stage evaluation based on issue resolution time. We analyzed 100 popular OSS projects hosted on GitHub, collecting data on issue creation and completion dates. The results indicate a correlation coefficient of 0.587 between 30 and 180 days of observation, aligning with previous findings on OSS support continuity. Notably, a satisfactory correlation of 0.525 was achieved at just 21 days, suggesting that organizations can assess OSS support speed earlier and potentially accelerate their decision-making process. Our findings provide a practical criterion for evaluating the speed of OSS support activities, which may help organizations adopt OSS with greater confidence and enhance productivity in software-related projects. Future research will expand these criteria by exploring additional factors affecting issue resolution time, such as project scale and corporate support.
With the growth of the use of drones especially in populated areas, Beyond the Visual Line of Sight (BVLOS) operation is expected as a challenge for drone operation. The layout of the Ground Control System (GCS) inter...
With the growth of the use of drones especially in populated areas, Beyond the Visual Line of Sight (BVLOS) operation is expected as a challenge for drone operation. The layout of the Ground Control System (GCS) interface and the drone camera screen via display devices are anticipated to be crucial to the performance of the BVLOS operation. Moreover, the camera perspectives may influence the behavior of operators as the situation. In this study, participants (n=29) in a variety of situations involving multiple takeoff and landing sites, obstacles, and weather were grouped according to the display devices and camera perspectives used. The result shows the Head Mounted Display (HMD) is physically uncomfortable with the possibility of VR sickness, which is more prevalent with the first-person view than the third-person view, but it crashes less and has a straighter flight path. Landing in a narrow area has a high crash rate but is safer with HMD.
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