Results 11 to 20 of about 66,614 (249)

Peculiarities of hard cosmic radiation variations near the ground surface in accordance with geomagnetic activity changes

open access: yesJournal of Environmental Engineering and Landscape Management, 2004
The mechanism of primary cosmic particle transformation into secondary radiation near the ground surface is analysed. It is known that the main part of secondary cosmic radiation consists of muons.
Dmitrijus Styra   +2 more
doaj   +4 more sources

Vertical ground reaction force oscillation during standing on hard and compliant surfaces: The “postural rhythm”

open access: yesFrontiers in Neurology, 2022
When a person stands upright quietly, the position of the Centre of Mass (CoM), the vertical force acting on the ground and the geometrical configuration of body segments is accurately controlled around to the direction of gravity by multiple feedback mechanisms and by integrative brain centres that coordinate multi-joint movements.
Stefania Sozzi   +3 more
openaire   +3 more sources

Non-destructive Magnetic Evaluation of Ground Surfaces Made of Bearing Steel of Variable Hardness [PDF]

open access: yesManufacturing Technology, 2014
This paper deals with non destructive magnetic evaluation of ground surfaces of variable hardness based on Barkhausen noise (BN) technique. Except magnetic investigation, obtained BN signals are correlated with metallographic observation, microhardness readings as well as residual stress measurements.
Zuzana Durstová   +4 more
openaire   +1 more source

Influence of shield tunnel construction on ground surface settlement under the condition of upper-soft and lower-hard composite strata [PDF]

open access: yesJournal of Vibroengineering, 2020
Taking the shield tunnel project of Guangzhou Metro Line 8 from Tongdewei Station to Shangbu Station as the research background, using the research method of finite element simulation and site monitoring, this paper analyses the influence rules of shield tunneling on ground subsidence under the condition of different hard rock height ratios.
Jianbing Lv   +5 more
openaire   +1 more source

Analysis of surface changes in the Wałbrzych hard coal mining grounds (SW Poland) between 1886 and 2009 [PDF]

open access: yesGeological Quarterly, 2014
Underground coal mining causes surface changes such as subsidence and land transformation. The knowledge of the character of subsidence in the past and in the present provides useful information for example for spatial development. In this paper the methodology of determining surface height changes based on cartographic modelling in geographic ...
Jan BLACHOWSKI, Wojciech MILCZAREK
openaire   +1 more source

A STUDY ON GROSS SLIP AND FRETTING WEAR OF CONTACTS INVOLVING A POWER-LAW GRADED ELASTIC HALF-SPACE

open access: yesFacta Universitatis. Series: Mechanical Engineering, 2019
For the steady wear state of two contact problems involving power-law graded materials, closed-form solutions are derived in terms of pressure distribution and limiting shapes of profile.
Markus Hess
doaj   +1 more source

Simulation Analysis of Influencing Factors of Subsidence Based on Mining under Huge Loose Strata: A Case Study of Heze Mining Area, China

open access: yesGeofluids, 2020
Based on the coal seam mining under the condition of thick soil layer, the mechanical mining subsidence process under the condition of thick soil layer was analyzed.
Xianxiang Zhu   +5 more
doaj   +1 more source

Analysis of the characteristics and causes of ground fissures in Kenya rift region

open access: yesZhongguo dizhi zaihai yu fangzhi xuebao, 2021
The Kenya Rift valley is located in the middle section of the eastern branch of the Great Rift valley in East Africa. Modern tectonic movement and volcanic activity are intense, and it is a hotspot in current geological research.The rift zone has ...
Peng TAN   +5 more
doaj   +1 more source

Development and evaluation of corrosion resistant coating for expandable rock bolt against highly corrosive ground conditions

open access: yesInternational Journal of Mining Science and Technology, 2018
Expandable rock bolts are widely used in hard rock mines as an efficient ground control product. However, capacity and service life can be significantly reduced if the metallic body is subjected to corrosion.
Kevin Jinrong Ma   +2 more
doaj   +1 more source

Bacteriophages Reduce Experimental Contamination of Hard Surfaces, Tomato, Spinach, Broccoli, and Ground Beef by Escherichia coli O157:H7 [PDF]

open access: yesApplied and Environmental Microbiology, 2008
ABSTRACT A bacteriophage cocktail (designated ECP-100) containing three Myoviridae phages lytic for Escherichia coli O157:H7 was examined for its ability to reduce experimental contamination of hard surfaces (glass coverslips and gypsum boards), tomato, spinach, broccoli, and ground
Tamar, Abuladze   +5 more
openaire   +2 more sources

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