Results 141 to 150 of about 2,068 (300)

Post‐Miocene Transtensional Opening of the Northern Red Sea

Geochemistry, Geophysics, Geosystems
The mechanism of opening, as well as the crustal characteristics of the northern Red Sea are subject of ongoing controversial scientific debate. With the objective of elucidating the nature of rifting in this area, a grid of 2D multi‐channel reflection ...
Thomas Lüdmann, Hildegard Westphal, Fabio Marchese, Alexander Petrovic, Volker Vahrenkamp   +4 more
doaj   +1 more source

A Cost-Effective Distributed Acoustic Sensor for Engineering Geology. [PDF]

Sensors (Basel), 2022
Gorshkov BG, Alekseev AE, Simikin DE, Taranov MA, Zhukov KM, Potapov VT.   +5 more
europepmc   +1 more source

Deteriorated Hysteresis Behavior of Reinforced Concrete Bridge Columns With Lap‐Spliced Circular Hoop Reinforcement

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Five lap‐spliced circular hoop (CH) concrete bridge columns, designed in accordance with the current Japanese bridge design code and Taiwan bridge design practice, were tested in this study to investigate the effects of longitudinal reinforcement and aspect ratios on deteriorated hysteresis behavior.
Ping‐Hsiung Wang, Cheng‐Yu Huang, Chiao‐Chu Tseng   +2 more
wiley   +1 more source

A Complex of Marine Geophysical Methods for Studying Gas Emission Process on the Arctic Shelf. [PDF]

Sensors (Basel), 2023
Krylov AA, Ananiev RA, Chernykh DV, Alekseev DA, Balikhin EI, Dmitrevsky NN, Novikov MA, Radiuk EA, Domaniuk AV, Kovachev SA, Timashkevich GK, Ivanov VN, Ilinsky DA, Ganzha OY, Gunar AY, Pushkarev PY, Koshurnikov AV, Lobkovsky LI, Semiletov IP.   +18 more
europepmc   +1 more source

A Three‐Parameter Continuum Timoshenko Beam Framework for Evaluating Higher‐Mode Effects in High‐Rise Buildings With Rotational and Translational Base Flexibility

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Higher‐mode effects can significantly amplify seismic demands in high‐rise buildings, causing unintended damage over the building height. Engineered mechanisms are introduced at the base of these structures to mitigate higher‐mode effects. Existing continuum formulations for base‐flexible buildings commonly idealize the superstructure as a ...
Mohammad Hossein Asadi Jafari, Jianhui Zhou, Fei Tong   +2 more
wiley   +1 more source

Acoustic Emission Monitoring of Carbon Fibre Reinforced Composites with Embedded Sensors for In-Situ Damage Identification. [PDF]

Sensors (Basel), 2021
Huijer A, Kassapoglou C, Pahlavan L.
europepmc   +1 more source

Study on Fluid Pressure in Tubing, Dynamic Stress in Reservoir, and Fracture Propagation Morphology During Variable‐Rate Hydraulic Fracturing

Energy Science &Engineering, EarlyView.
Variable‐rate hydraulic fracturing can induce unsteady flow in the tubing, thereby generating fluctuating fluid pressure near the bottom‐hole reservoir. Dynamic stress is generated in the reservoir under the action of fluctuating fluid pressure and propagates as stress waves.
Zhu Ge, Wang Chaojing, Li Weicheng
wiley   +1 more source

SEISMIC METHODS ON THE ICE SHELF: A COMPARISON BETWEEN VIBROSEIS AND EXPLOSIVE SEISMICS ON EKSTRÖMISEN

, 2010
We present first-time-ever results of active seismic measurements on an ice shelf with a vibroseismic source. The measurements were conducted in the 2009/10 field season in Dronning Maud Land, Antarctica.
Hofstede, Coen, Kristoffersen, Y., Mayer, Christoph, Lambrecht, A., Blenkner, R., Eisen, Olaf, Kindermann, Lars   +6 more
core   +1 more source

Active Seismics on Sorsdal Glacier 2015-2016

Progress Code: completedStatement: Data are very noisy - thought to be caused by reverberations from nearby crevasses. No thickness measurement could be made, so raw data are all that is available.<b>Purpose</b><br/>Active seismics to ...

core  

Multiphase Tectonic Process With Slab Dynamics in the Northern East China Sea Shelf Basin

Geological Journal, EarlyView.
Megasequence 1 characterised by Palaeocene extension and differential subsidence driven by the rollback of the subducting Izanagi Plate. Megasequence 2 records a kinematic reorganisation of the East Asian margin, transition from a rifting to a compressional regime.
Juhwan Woo, Won‐Ki Kim, Chul Woo Rhee, Seungyeol Lee   +3 more
wiley   +1 more source