Results 31 to 40 of about 839,963 (209)

Dry Reforming of Biogas Over Li–Ni–Al Catalysts: Influence of Li Incorporation Method

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Hydrogen is a promising source of energy, given the current context of depletion of fossil fuels and increased emissions of greenhouse gases. The technological route for obtaining this fuel from the dry reforming of biogas has received considerable attention from researchers, as it converts the polluting gases CH4 and CO2 into synthesis gas ...
Cristine Munari Steffens   +1 more
wiley   +1 more source

Assessment of timber extraction distance and skid road network in steep karst terrain [PDF]

open access: yes, 2017
This study aims to define a simple and effective method to calculate skidding distances on steep karst terrain, rich in ground obstacles (stoniness and rockiness) to support decision planning of secondary and primary forest infrastructure network for ...
\u110uka, Andreja   +4 more
core   +2 more sources

Contourites: Physical oceanography, process sedimentology, and petroleum geology

open access: yes, 2017
The purpose of this critical review is to address fundamental principles associated with contourites and other bottom-current deposits. The four basic types of deep-marine bottom currents are: (1) thermohaline-induced geostrophic contour currents, (2 ...
G. Shanmugam
semanticscholar   +1 more source

A Coupled Extended Finite Element–Cohesive Zone Model for Hydraulic Fracture Propagation Under Poroelastic Effects Across Different Propagation Regimes

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Numerical simulation of hydraulic fracturing remains challenging due to the strong coupling between geomechanics and fluid flow when modelling multiple physical mechanisms of rock deformation, fracture evolution and fluid leak‐off. This study develops a coupled hydraulic fracture propagation framework that combines the extended finite element ...
Ran Tao, Juliana Y. Leung, Samer Adeeb
wiley   +1 more source

Petroleum geology and exploration potential of Oriente-Maranon Basin

open access: yes, 2010
Oriente-Maranon Basin is one of the Sub-Andean foreland basins developed and formed on the basis of Margin of Craton. Oriente-Maranon Basin went through three evolution phases: marginal basin of craton, rift basin and foreland basin.
Xie Yin-fu   +3 more
semanticscholar   +1 more source

The use of unmanned aerial vehicles (UAVs) for engineering geology applications

open access: yesBulletin of Engineering Geology and the Environment, 2020
This paper represents the result of the IAEG C35 Commission “Monitoring methods and approaches in engineering geology applications” workgroup aimed to describe a general overview of unmanned aerial vehicles (UAVs) and their potentiality in several ...
D. Giordan   +17 more
semanticscholar   +1 more source

Numerical Modeling of Geological Fault Reactivation Using Sequential Coupling Strategies

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT The interaction between fluid flow and mechanical deformation in fault zones can lead to processes of fault reactivation, triggering potential geomechanical problems such as seismicity, well collapse, fluid migration to shallower layers, and aggravated surface subsidence.
Julio Rueda   +3 more
wiley   +1 more source

HYPOGEAN GEOLOGY OF THE CAMERANO SITE (MARCHES, ITALY)

open access: yes, 2013
The historical Camerano town (Ancona, Central Italy), built on the top of a hill at the rear of the Conero Mt. promontory, holds a broad underground system of remarkable man-drilled caves.
R. Bizzarri   +3 more
semanticscholar   +1 more source

Fair and Equitable Land Access (FELA) by Development Projects: Enhancing Governance for Sustainable Development Outcomes When Projects Displace People

open access: yesSustainable Development, EarlyView.
ABSTRACT Displacing people to make way for development projects is contentious. Empirical research demonstrates that neither human rights guidelines nor multilateral lenders' standards guarantee positive, sustainable outcomes for displaced people. With multiple new displacing projects proposed globally, including for renewable energy, we propose a new ...
Eddie Smyth   +2 more
wiley   +1 more source

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