Results 91 to 100 of about 5,824,919 (291)

Performance-Based approach in seismic design of embedded retaining walls [PDF]

open access: yes, 2008
The increasing use of the underground spaces and the last seismic events in the urban areas have driven many researchers of different countries to deepen the knowledge on the dynamic behaviour of the structure embedded in the subsoil.
Visone, Ciro
core   +1 more source

Inversion of seismic reflection data from the Gialo Field, Sirte Basin [PDF]

open access: yes, 1996
This project is concerned with the development of software to invert seismic reflection data for acoustic impedance, with application to the YY-reservoir area in Gialo Field, Sirte Basin.
BenGheit, Ali O.
core  

World's fastest 10 000‐m breakthrough: The XY‐22 well redefines deep‐earth access in the Tarim Basin

open access: yesDeep Underground Science and Engineering, EarlyView.
The Tarim Basin in northwestern China hosts one of the world's deepest petroleum systems, exemplified by the XY‐22 ultra‐deep well (bottom depth: 11 116 m; ~220°C, ~145 MPa). This study integrates tectonic mapping, geological cross‐sections, ultraviolet fluorescence microscopy, and optical photothermal infrared (OPTIR) spectroscopy to characterize ...
Qingwen Tan   +4 more
wiley   +1 more source

A case study on the failure of the electrical panel of nuclear power plants by shaking table tests

open access: yesNuclear Engineering and Technology
The clearest method to evaluate seismic performance is to test the equipment installed in nuclear power plants using shaking table tests. Accordingly, research is conducted to directly evaluate the seismic performance and limit state via shaking table ...
Bub-Gyu Jeon   +5 more
doaj   +1 more source

Modeling and monitoring injectivity evolution during cold CO2 injection with field evidence from aquistore carbon capture and storage operations

open access: yesDeep Underground Science and Engineering, EarlyView.
This work integrates 5 years of field data from the Aquistore CCS project with a non‐isothermal THM modeling framework to explain how cold CO2 injection alters injectivity over time. The study shows that sustained cooling near the wellbore reduces effective stresses, promotes tensile micro‑cracking, and leads to semi‑reversible permeability enhancement
Alireza Rangriz Shokri   +3 more
wiley   +1 more source

Seismic behavior of electrical cabinets with cast-in-place anchors: influence of concrete cracks and multi-bay installation

open access: yesNuclear Engineering and Technology
Electrical cabinets are typically assembled in a multi-bay configuration, connecting two or more modules, and the structural implications of this setup must be carefully addressed. Concrete foundation cracks, often observed during field investigations at
Bub-Gyu Jeon   +5 more
doaj   +1 more source

Investigation on the mechanical behavior of the multiple‐layered lining structure of a water conveyance tunnel with high internal water pressure

open access: yesDeep Underground Science and Engineering, EarlyView.
This study presents large‐scale similarity model testing (geometric ratio 3.6) of an innovative multiple‐layered lining system—comprising exterior precast segments, middle self‐compacting concrete, and an interior steel pipe—for high‐pressure (0.75 MPa) water conveyance tunnels.
Ramin Asadi   +4 more
wiley   +1 more source

Multi-Scenario Based Assessment of Seismic Hazard: a Must for the Effective Definition of the Seismic Input

open access: yes, 2013
Lessons learnt from the destructive earthquakes occurred during the new millennium provide new opportunities to take action, revise and improve the procedure for seismic hazard assessment. When dealing with cultural heritage and critical structures (e.g.
VACCARI, FRANCO   +3 more
core  

Development and application of the phase-screen seismic modelling code [PDF]

open access: yes, 2009
As a consequence of the aims of this project, this thesis is divided into two distinct sections. Initially, the computationally efficient phase-screen forward modelling technique is extended to allow investigation of non-normal ray paths.
White, James C.
core  

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