Results 21 to 30 of about 6,364 (304)

Aerodynamic Drag Reduction on Speed Skating Helmet by Surface Structures

open access: yesApplied Sciences, 2022
The aerodynamic drag for speed skating helmets with surface structures was investigated in this work by using numerical and experimental methods. Computational fluid dynamic (CFD) research was performed to analyze the detail of the flow field around the ...
Yanqing Wang   +5 more
doaj   +1 more source

Intelligent Traffic Control with Smart Speed Bumps

open access: yes2023 7th International Conference on Internet of Things and Applications (IoT), 2023
7 pages, 5 ...
Melvin Mokhtari   +4 more
openaire   +2 more sources

Intelligent Smartphone based system for detecting speed bumps and reducing car speed

open access: yesMATEC Web of Conferences, 2016
Although speed bumps are used to force drivers reduce car speed for avoiding accidents, these bumps may cause car crash or accident when drivers do not notice them. Studies have proposed different methods to detect bumps and alert drivers. However, these
Daraghmi Yousef-Awwad, Daadoo Motaz
doaj   +1 more source

Thermal Characteristics Study of the Bump Foil Thrust Gas Bearing

open access: yesApplied Sciences, 2021
In this paper, a thermo-hydrodynamic model of the bump foil thrust gas bearing is developed, which solves the coupled gas film three-dimensional energy equation, non-isothermal Reynolds equation, and the foil deformation equation.
Xiaomin Liu   +3 more
doaj   +1 more source

PRELIMINARY STUDIES OF VERTICAL ACCELERATION OF A PASSENGER CAR PASSING THROUGH THE SPEED BUMP FOR VARIOUS DRIVING SPEEDS [PDF]

open access: yesTransport Problems, 2019
The article proposes a phenomenological model of a passenger car. The model includes the biomechanical model of human bodies in the sitting position of Muksian and Nash acting as passengers, while the driver’s weight has been reduced to the ...
Tomasz HANISZEWSKI, Agata MICHTA
doaj   +1 more source

Improvement of Boeing Bump Method Considering Aircraft Vibration Superposition Effect

open access: yesApplied Sciences, 2021
Pavement evaluation is critical for the decision-making process of pavement preservation and rehabilitation. Roughness is a key airport pavement characteristic that has been linked to impacts such as safety and service life. The Boeing Bump is one of the
Shifu Liu   +4 more
doaj   +1 more source

Essays on the U.S. Equity Speed Bump and National Market System

open access: yes, 2022
In the U.S. equity market, high-frequency trading firms with access to fast networks engage in latency arbitrage. In this dissertation, we study both theoretically and empirically whether the artificial latency (“speed bump”) implemented by Investors ...
Jueheng Zhu (4941925)
core   +1 more source

Optimal regulation of bipedal walking speed despite an unexpected bump in the road. [PDF]

open access: yesPLoS ONE, 2018
Bipedal locomotion may occur over imperfect surfaces with bumps or other features that disrupt steady gait. An unexpected bump in the road is generally expected to slow down most types of locomotion.
Osman Darici   +2 more
doaj   +1 more source

Rancang Bangun Prototipe Pemanen Energi Getaran pada Speed Bump Menggunakan Tranducer Piezoelectric

open access: yesMedika Teknika, 2022
Listrik adalah salah satu aspek penting bagi manusia untuk menjalankan segala kegiatan sehari-hari. Seiring dengan terus meningkatnya jumlah penduduk, maka kebutuhan akan pemakaian energi listrik juga semakin meningkat.
Legenda Prameswono Pratama   +2 more
doaj   +1 more source

Evaluation of Static and Dynamic Characteristics of Bump Metal Mesh Foil Bearing

open access: yesTribology Online
Gas foil bearings, which are oil-free and exhibit low energy losses, are used in high-speed rotating machinery. Because gas is used as the working fluid, there is a need to improve damping performance using support structures.
Yuki Kuwata, Masayuki Ochiai
doaj   +1 more source

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