Results 31 to 40 of about 11,616,755 (303)
Influence of Rail Line Gradient and Curve on Pantograph-Catenary Dynamic Performance
机车电传动, 2020 In the study of the key mechanics problems in high-speed train, the pantograph-catenary dynamic performance under rail line gradient and curve is one of the most important research contents.
Huan ZOU +3 more
doaj
Nonlinear Vibration of a Micro Piezoelectric Precision Drive System
Micromachines, 2019 A micro piezoelectric precision drive system is proposed, which is advantageous due its small size, large transmission ratio, and large output torque.
Chong Li +3 more
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Study on a Frequency Fluctuation Attenuation Method for the Parallel Multi-VSG System
Frontiers in Energy Research, 2021 Virtual synchronous generator (VSG) is one of the inverter control methods which can provide extra virtual moment of inertia and achieve frequency support by mimicking the output characteristics of a rotating synchronous generator (RSG), which makes VSG ...
Zhenao Sun, Fanglin Zhu, Xingchen Cao
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Analysis of Dynamic Performance of a Kalman Filter for Combining Multiple MEMS Gyroscopes
Micromachines, 2014 In this paper, the dynamic performance of a Kalman filter (KF) was analyzed, which is used to combine multiple measurements of a gyroscopes array to reduce the noise and improve the accuracy of the individual sensors. A principle for accuracy improvement
Liang Xue +4 more
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Design Analysis of a Passive Buffer System for Space-Assembled Segmented Mirrors
Applied Sciences, 2019 This paper presents a passive buffer system of connection mechanism for space-assembled segmented mirrors. The purpose of assembling telescope in space is to overcome the limits of launch volume and mass to support ever increasing aperture sizes.
Xupeng Li +4 more
doaj +1 more source
Performance Dynamics and Success in Online Games [PDF]
2017 IEEE International Conference on Data Mining Workshops (ICDMW), 2017 Online data provide a way to monitor how users behave in social systems like social networks and online games, and understand which features turn an ordinary individual into a successful one. Here, we propose to study individual performance and success in Multiplayer Online Battle Arena (MOBA) games.
Anna Sapienza +2 more
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Comparative Study on Dynamic Characteristics of GaN HEMT at 300K and 150K
IEEE Journal of the Electron Devices Society, 2020 Dynamic characteristics of GaN HEMT grown on a native substrate were systematically investigated at 300K and 150K. Transfer and output characteristics of the GaN HEMT were measured after various off-state stressing conditions and recovery durations.
Yangqian Wang +7 more
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Unions, Dynamism, and Economic Performance [PDF]
SSRN Electronic Journal, 2010 This paper explores the relationship between economic performance and US unionism, focusing first on what we do and do not know based on empirical research handicapped by limited data on establishment and firm level collective bargaining coverage.
openaire +4 more sources
The Dynamic Performance of Flexural Ultrasonic Transducers [PDF]
Sensors, 2018 Flexural ultrasonic transducers are principally used as proximity sensors and for industrial metrology. Their operation relies on a piezoelectric ceramic to generate a flexing of a metallic membrane, which delivers the ultrasound signal. The performance of flexural ultrasonic transducers has been largely limited to excitation through a short voltage ...
Andrew Feeney +3 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo +9 more
wiley +1 more source