Results 1 to 10 of about 43,580 (163)

Effects of the performance parameters of a wheelchair on the changes in the position of the centre of gravity of the human body in dynamic condition. [PDF]

open access: yesPLoS ONE, 2019
PURPOSE:The aim of this research is to establish whether, and to what extent, the tilt angle, gear ratio of the propulsion system and propulsion frequency of a wheelchair influence the position of the centre of gravity.
Bartosz Wieczorek, Mateusz Kukla
doaj   +2 more sources

ICGEM – 15 years of successful collection and distribution of global gravitational models, associated services, and future plans [PDF]

open access: yesEarth System Science Data, 2019
The International Centre for Global Earth Models (ICGEM, http://icgem.gfz-potsdam.de/, last access: 6 May 2019) hosted at the GFZ German Research Centre for Geosciences (GFZ) is one of the five services coordinated by the International Gravity Field ...
E. S. Ince   +8 more
doaj   +1 more source

SPECTRAL MOMENTS OF FRICATIVE CONSONANTS IN SERBIAN (AN ACCOUNT OF FEMALE SPEAKERS’ PRODUCTION) [PDF]

open access: yesFilolog, 2020
This paper deals with the measurement of spectral moments of Serbian fricatives. The four spectral moments: centre of gravity, spectral variance, skewness, and kurtosis were measured at the onset of the fricative, on the stable-state part and at the ...
Borivoje Petrović
doaj   +2 more sources

Accuracy Analysis of the Measurement of Centre of Gravity and Moment of Inertia with a Swing

open access: yesApplied Sciences, 2021
Floating devices under wave and current loads are typically designed based on numerical methods followed by a validation with experimental investigations.
Roman Gabl   +3 more
doaj   +1 more source

An Analytical Modelling of Demand for Driving Torque of a Wheelchair with Electromechanical Drive

open access: yesEnergies, 2021
This study aimed at analysing the influence of the position of the centre of gravity variability and the movement velocity on the demand for a torque and work time coverage of a wheelchair with an electromechanical drive.
Mateusz Kukla   +4 more
doaj   +1 more source

An Assessment of Stability and Strength of a Container Ship for Safety Compliance in Cargo Loading Plans

open access: yesApplied Sciences, 2023
According to accident case studies, one of the causes of accidents involving container ships was often the incorrectly declared weight of the container. For this reason, the International Maritime Organization introduced an amendment to the International
Magdalena Kaup   +3 more
doaj   +1 more source

Technical note: Introduction of a superconducting gravimeter as novel hydrological sensor for the Alpine research catchment Zugspitze [PDF]

open access: yesHydrology and Earth System Sciences, 2021
GFZ (German Research Centre for Geosciences) set up the Zugspitze Geodynamic Observatory Germany with a worldwide unique installation of a superconducting gravimeter at the summit of Mount Zugspitze on top of the Partnach spring catchment.
C. Voigt   +10 more
doaj   +1 more source

Static Lateral Stability of Tractor with Rear Wheel Ballast Weights: Comparison of ISO 16231-2 (2015) with Experimental Data Regarding Tyre Deformation

open access: yesApplied Sciences, 2021
The paper presents a static lateral stability of a sub-compact tractor MT8-070 Mini in relation to a safe tractor operation. Axle weight distribution of the tractor was measured to calculate the vertical and longitudinal coordinates of a centre of ...
Radoslav Majdan   +6 more
doaj   +1 more source

The Evolution Characteristics and Driving Mechanism of Urban Construction Land in Hong Kong since 1972

open access: yesApplied Sciences, 2023
As an important spatial carrier of Hong Kong’s economic development, construction land provides a critical site for Hong Kong’s economic and social activities. The development of construction land directly affects the sustainable development of the city.
Yufan Wu, Jiangbo Wang, Aiping Gou
doaj   +1 more source

Affrication as the cause of /s/-retraction: Evidence from Manchester English

open access: yesGlossa, 2022
Retraction of /s/ to a more [ʃ]-like sound is a well-known sound change attested across many varieties of English for /stɹ/ words, e.g. street and strong.
Danielle Turton   +3 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy