Results 51 to 60 of about 25,810 (252)

Application of MASW, Microtremor, and Seismic Refraction Tests for Buildings in Vulnerable Communities

Buildings
The structural system is an essential component in engineering and architecture, determining the stability, strength, and functionality of buildings.
Gonzalo Díaz-García, Marlon Farfán-Córdova   +1 more
doaj   +1 more source

Geomorphology Characterization of Ica Basin and Its Influence on the Dynamic Response of Soils for Urban Seismic Hazards in Ica, Peru

International Journal of Geophysics, 2018
We evaluated the influence of the geomorphology of Peru’s Ica Basin on the dynamic response of soils of the city of Ica. We applied five geophysical methods: spectral ratio (H/V), frequency-wavenumber (F-K), multichannel analysis of surface waves (MASW),
Isabel Bernal, Hernando Tavera, Wilfredo Sulla, Luz Arredondo, Javier Oyola   +4 more
doaj   +1 more source

Combining of MASW and GPR Imaging and Hydrogeological Surveys for the Groundwater Resource Evaluation in a Coastal Urban Area in Southern Spain

Applied Sciences, 2021
This paper conceptualizes and evaluates the groundwater resource in a coastal urban area hydrologically influenced by peri-urban irrigation agriculture.
Francisco Javier Alcalá, Pedro Martínez-Pagán, Maria Catarina Paz, Manuel Navarro, Jaruselsky Pérez-Cuevas, Francisco Domingo   +5 more
doaj   +1 more source

The GPS global detection of the ionospheric response to solar flares [PDF]

, 2000
This author suggests the concept of a new technology for global detection (GLOBDET) of atmospheric disturbances of natural and technogenic origin, on the basis of phase measurements of the total electron content (TEC) in the ionosphere using an ...
Afraimovich, E. L.
core   +3 more sources

Colloid‐Mediated Synthesis of Hierarchically Porous Amorphous Catalyst for Durable Industrial‐Scale Water Electrolysis

Advanced Materials, EarlyView.
A colloid‐mediated electroless plating (CMEP) strategy is proposed to fabricate hierarchically porous, amorphous Fe‐doped NiWB electrocatalysts under ambient conditions. The in situ formation of Fe‐W‐O colloidal species guides the formation of robust, porous catalyst layers with excellent mass transfer and durability, sustaining 500 mA cm−2 for 2000 h,
Yu Liao, Lei Li, Jingxian Zhang, Yangyang Chen, Sha Luo, Yan Qing, Cuihua Tian, Guanjie He, Yiqiang Wu   +8 more
wiley   +1 more source

2-D Seismic Response Analysis of a Slope in the Tyrrhenian Area (Italy)

Applied Sciences, 2021
The Caronia area is located in the Tyrrhenian north-eastern sector of Sicily (Italy). Starting in 2010, attention focused on the study of landslides phenomena that occurred in this area, which caused significant economic damage to buildings and ...
Antonio Cavallaro, Antonio Ferraro, Salvatore Grasso, Antonio Puccia   +3 more
doaj   +1 more source

Metamaterial Antennas Enhance MRI of the Eye and Occipital Brain

Advanced Materials, EarlyView.
A radiofrequency antenna platform comprising planar and bend configurations is developed, incorporating structurally integrated epsilon‐negative metamaterial unit cells to enhance MRI. These antennas enable high‐resolution in vivo human MRI of the eye, orbit, and occipital brain. Comprehensive validation, including simulations, phantom experiments, SAR,
Nandita Saha, Bilguun Nurzed, Mostafa Berangi, Andre Kuehne, Helmar Waiczies, Igor Fabian Tellez Ceja, Xiang Hu, Thomas Gladytz, Lisa Krenz, Dave Huebler, Beate Endemann, Claudia Brockmann, Ebba Beller, Oliver Stachs, Thoralf Niendorf   +14 more
wiley   +1 more source

Nonlinear Site Response Analysis in District XIII, Budapest

Slovak Journal of Civil Engineering
Urban seismic hazard assessments must account for local soil conditions that can significantly alter ground motion characteristics. This study presents a nonlinear one-dimensional (1D) site response analysis for four locations within Budapest’s District ...
Al-Azazmeh Ahmad, Mahler András
doaj   +1 more source

Nondestructive testing of railway embankments by measuring multi-modal dispersion of surface waves induced by high-speed trains with linear geophone arrays

Seismica
To effectively address engineering challenges and risks, it is crucial to characterize mechanical properties of near-surface environments. The Multichannel Analysis of Surface Waves (MASW) has proven to be a valuable active seismic imaging technique by ...
José Cunha Teixeira, Ludovic Bodet, Marine Dangeard, Alexandrine Gesret, Amélie Hallier, Agnès Rivière, Audrey Burzawa, Julio José Cárdenas Chapellín, Marie Fonda, Ramon Sanchez Gonzalez, Amine Dhemaied, Joséphine Boisson Gaboriau   +11 more
doaj   +1 more source

Application of high resolution geophysical prospecting to assess the risk related to subsurface deformationin Mexico City [PDF]

Proceedings of the International Association of Hydrological Sciences, 2015
In the eastern sector of Mexico City the sub soil consists of high contrasting sequences (lacustrine and volcanic inter bedded deposits) that favor the development of erratic fracturing in the surface causing damage to the urban infrastructure.
F. A. Centeno-Salas, F. A. Centeno-Salas, D. Carreón-Freyre, W. A. Flores-García, R. I. Gutiérrez-Calderón   +4 more
doaj   +1 more source