Results 31 to 40 of about 68,765 (292)

GROUND DEFORMATION MONITORING IN QINGDAO COASTAL AREAS BY TIME-SERIES TERRASAR-X IMAGES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
As a new generation of high resolution and short revisit period of radar satellite, TerraSAR-X is not only able to meet the requirements of monitoring large scale surface subsidence, but also make it possible to monitor the small deformation of the short
A. Y. Hou, X. Qiao, D. Li
doaj   +1 more source

Construction and testing of self-drilled soil nails [PDF]

open access: yes, 2016
Current standards and best practice guidance recognise that testing of self-drilled hollow bar soil nails can be problematic as conventional packers and debonded lengths cannot be constructed.
Lindsay, Fraser M.   +2 more
core   +2 more sources

Vibration and buckling of open TWBs with local weakening [PDF]

open access: yes, 2017
Free vibration and Ljapounov stability of compressed open thin-walled beams with a cross-section reduction are studied by a in-house finite differences numerical code, based on a refined direct beam model and allowing for investigating elastic stability ...
Carpinteri, A.   +3 more
core   +1 more source

Intensification of toxic chlorophenolic compounds degradation over efficient microwave-dried silica-doped tetragonal zirconia nanocatalysts [PDF]

open access: yes, 2021
The work aims to evaluate the efficient microwave (MW) drying method of silica-doped tetragonal zirconia nanocatalysts (SZN-M) for intensification of the degradation of toxic chlorophenolic compounds. The catalyst dried under a conventional oven (SZN-O)
Adamski   +54 more
core   +1 more source

APPLICATION OF DSM IN OBSTACLE CLEARANCE SURVEYING OF AERODROME [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2016
Compared to the wide use of digital elevation model (DEM), digital surface model (DSM) receives less attention because that it is composed by not only terrain surface, but also vegetations and man-made objects which are usually regarded as useless ...
X. Qiao   +7 more
doaj   +1 more source

Enhancing Properties of Bayer Red Mud–Class F Fly Ash Geopolymer Composites via Ground Granulated Blast Furnace Slag and Calcium Carbide Slag Incorporation

open access: yesBuildings
Red mud, fly ash, ground granulated blast furnace slag, and carbide slag are industrial byproducts posing significant environmental challenges. The synthesis of geopolymers represents a promising approach for their sustainable valorization.
Qingke Nie   +5 more
doaj   +1 more source

Investigation into the effect of uncertainty of CPT-based soil type estimation on the accuracy of CPT-based pile bearing capacity analysis [PDF]

open access: yes, 2016
Cone Penetration Test (CPT or CPTu) is commonly used for estimating soil types and also for the geotechnical design of pile foundation. However, the level of agreement between the CPT-based soil types and the traditional identification of soil types ...
Bellis, Angela, Hamza, Omar
core   +2 more sources

Clay-Based Materials for Heavy Metals Adsorption: Mechanisms, Advancements, and Future Prospects in Environmental Remediation

open access: yesCrystals
Given the severe threats posed by heavy metal pollution to ecological environments and human health, developing effective remediation technologies is of paramount importance.
Pengsheng Wang   +5 more
doaj   +1 more source

The Promotion/Inhibition of the Seepage Transport of Copper Ions by Suspension-Colloidal Particles with Wide Size Gradation

open access: yesGeofluids, 2021
Sand column tests were conducted to investigate the seepage transport of silicon powders (SPs) with two wide particle size ranges (30-2000 nm and 2-70 μm), including the cotransport of SPs and copper ions.
Qingke Nie   +4 more
doaj   +1 more source

Numerical evaluation of the pipe-pile buckling during vibratory driving in sand [PDF]

open access: yes, 2019
The buckling of steel pipe piles during vibratory driving is numerically studied using the Multi-Material Arbitrary Lagrangian-Eulerian (MMALE) method. This method handles the large soil deformations that occur during pile driving and other geotechnical ...
Aubram, Daniel   +3 more
core   +1 more source

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