Results 21 to 30 of about 978,883 (282)

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

Geological 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

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

Applied 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, Manrong, Li, Marc Y, Menetrez, Timothy, Dean, Andre, Senecal, Alexander, Sulakvelidze   +5 more
openaire   +2 more sources

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

Facta 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

Geofluids, 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, Wenquan Zhang, Zaiyong Wang, Chenghao Wang, Wei Li, Changhao Wang   +5 more
doaj   +1 more source

Derivation of consistent hard rock (1000 [PDF]

, 2017
A key component in seismic hazard assessment is the estimation of ground motion for hard rock sites, either for applications to installations built on this site category, or as an input motion for site response computation.
A Laurendeau, A Rodriguez-Marek, A Rodriguez-Marek, A. Laurendeau, AG Tumarkin, AM Chandler, B Edwards, B Lebrun, B. Hernandez, BLN Kennett, C Houtte Van, D Assimaki, D Boore, D Boore, DM Boore, DM Boore, E Maufroy, E Maufroy, EM Thompson, F Cotton, F Cotton, F. Hollender, H Cadet, H Cadet, J Anderson, J Douglas, J Lermo, JH Steidl, JJ Bommer, K Konno, K Olsen, KW Campbell, L Al Atik, L. Foundotos, LF Bonilla, N Abrahamson, N Theodoulidis, O-J Ktenidou, O.-J. Ktenidou, OJ Ktenidou, OJ Ktenidou, P-Y Bard, P.-Y. Bard, RD Borcherdt, S Akkar, S Drouet, S Kinoshita, S Parolai, SE Hough, SS Bora, SS Bora, T Kanno, TD Ancheta, TM Brocher, V Poggi, V. Perron, WB Joyner, Y Fukushima, Y Okada   +58 more
core   +4 more sources

Analysis of Tread ICRs for Wheeled Skid-Steer Vehicles on Inclined Terrain

IEEE Access, 2023
The instantaneous centers of rotation (ICRs) for the two treads of skid-steer vehicles moving with low inertia on hard horizontal terrain almost remain with constant local coordinates, which allows to establish an equivalence with differential-drive ...
Jorge L. Martinez, Jesus Morales, Jesus M. Garcia, Alfonso Garcia-Cerezo   +3 more
doaj   +1 more source

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

International 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, John Stankus, Dakota Faulkner   +2 more
doaj   +1 more source

Point-Source Decay of Ground-Motion Amplitudes at <10 km

The Seismic Record, 2023
The amplitudes and decay rate of ground motions from small to moderate earthquakes are important to the assessment of induced seismicity hazards and useful as input components to finite-fault models of larger events.
Gail M. Atkinson, Gisela Viegas
doaj   +1 more source

Accuracy of cone beam computed tomography in measuring thicknesses of hard-tissue-mimicking material adjacent to different implant thread surfaces

Journal of Dental Sciences, 2019
Background/purpose: To evaluate the measurement accuracy of hard-tissue thicknesses adjacent to dental implants with different thread designs on images obtained from cone beam computed tomography (CBCT) using an in vitro model.
Ching-Yu Yen, Po-Jan Kuo, Chi-Yu Lin, Nancy Nie-Shiuh Chang, Hsiang-Yin Hsiao, Yu-Tang Chin, Chi-Chun Tsai, Sheng-Yang Lee   +7 more
doaj   +1 more source

Influence of Discontinuous Linear Deformation on the Values of Continuous Deformations of a Mining Area and a Building Induced by an Exploitation of Hard Coal Seam

Applied Sciences, 2023
In this article, the impact of a ground step on a residential building and a mining terrain has been presented. Influence of a discontinuous linear deformation by the changes of the inclination and curvatures’ values (continuous deformations) has been ...
Justyna Orwat
doaj   +1 more source