Results 31 to 40 of about 3,905,794 (341)

Initial geological considerations before installing ground source heat pump systems [PDF]

open access: yes, 2009
The performance of an open- or closed-loop ground source heat pump system depends on local geological conditions. It is important that these are determined as accurately as possible when designing a system, to maximize efficiency and minimize ...
Busby, Jon   +3 more
core   +1 more source

Digital Rock Physics: A case study of carbonate rocks [PDF]

open access: yesPAMM, 2016
AbstractDigital Rock physics is a numerical framework applying image‐based methods to determine effective material properties of rock. It is possible to find several of these methods in the literature, but we focused mainly in micro X‐Ray Computed Tomography (µXRCT) to acquire the digital rock samples.
David Uribe   +2 more
openaire   +1 more source

Two-Stage Alignment of FIB-SEM Images of Rock Samples

open access: yesJournal of Imaging, 2020
Focused Ion Beam Scanning Electron Microscopy (FIB-SEM) tomography provides a stack of images that represent serial slices of the sample. These images are displaced relatively to each other, and an alignment procedure is required. Traditional methods for
Iryna Reimers   +3 more
doaj   +1 more source

Suitability of ground-based SfM-MVS for monitoring glacial and periglacial processes [PDF]

open access: yes, 2016
Photo-based surface reconstruction is rapidly emerging as an alternative survey technique to lidar (light detection and ranging) in many fields of geoscience fostered by the recent development of computer vision algorithms such as structure from motion ...
Carturan, Luca   +6 more
core   +2 more sources

Research of influencing factors on permeability for carbonate rocks based on LBM simulation: A case study of low-permeability gas reservoir of Sinian Dengying Formation in Sichuan Basin

open access: yesFrontiers in Earth Science, 2023
Instruction: Due to the declining production rate of conventional natural gas reservoir and the rising demand for natural gas resources, conventional natural gas resources cannot satisfy the needs of economic development.
Shan Yang   +8 more
doaj   +1 more source

Digital Rock Mechanical Properties by Simulation of True Triaxial Test: Impact of Microscale Factors

open access: yesGeotechnics, 2023
Complex fractures and pore structures in the rock strongly influence the mechanical properties, and the process from compression to failure is complicated.
Wenjie Ma   +9 more
doaj   +1 more source

Simulation of Rock Electrical Properties in Deep Reservoirs Based on Digital Rock Technology

open access: yesProcesses, 2023
Deep reservoirs are in a high-pressure and high-temperature (HPHT) environment, while the experimental conditions for rock electrical properties that meet the deep reservoir conditions are harsh and costly.
S. Shang   +7 more
semanticscholar   +1 more source

A little rock&love. Creative resources used by brands in mobile advertising [PDF]

open access: yes, 2015
Los cambios sociológicos, culturales y simbólicos que se han producido en la era digital han tenido una gran repercusión en el ámbito de la comunicación y evidencian que es necesario que las marcas tracen nuevos caminos en su búsqueda para conectar con
García Cubells, Rosario   +2 more
core   +4 more sources

A High Throughput Method for Measuring Polycyclic Aromatic Hydrocarbons in Seafood Using QuEChERS Extraction and SBSE

open access: yesInternational Journal of Analytical Chemistry, 2015
National Oceanic and Atmospheric Administration (NOAA) Method NMFS-NWFSC-59 2004 is currently used to quantitatively analyze seafood for polycyclic aromatic hydrocarbon (PAH) contamination, especially following events such as the Deepwater Horizon oil ...
Edward A. Pfannkoch   +5 more
doaj   +1 more source

Estimating pore volume compressibility by spheroidal pore modeling of digital rocks

open access: yesPetroleum Exploration and Development, 2020
: The real pores in digital cores were simplified into three abstractive types, including prolate ellipsoids, oblate ellipsoids and spheroids. The three-dimensional spheroidal-pore model of digital core was established based on mesoscopic mechanical ...
Weibo SUI   +3 more
doaj   +1 more source

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