Results 41 to 50 of about 4,108 (201)

High-resolution frequency-domain electromagnetic mapping for the hydrological modeling of an orange orchard [PDF]

open access: yesSOIL
While aboveground precision agriculture technologies provide spatial and temporal datasets that are ever increasing in terms of density and precision, belowground information lags behind and has been typically limited to time series.
L. Peruzzo   +7 more
doaj   +1 more source

Broadband Dielectric Analysis of Clays: Impact of Cation Exchange Capacity, Water Content, and Porosity

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Clay‐rich soils and sediments are key components of near‐surface systems, influencing water retention, ion exchange, and structural stability. Their complex dielectric response under moist conditions arises from surface–ion electrostatics and diffuse double layers that govern transport and retention processes. This study explores the broadband
Felix Schmidt   +5 more
wiley   +1 more source

Experimental and numerical study on rock burst triggering mechanism via spatiotemporal evolution of stress flow

open access: yesMeitan kexue jishu
To address the prevention and control of rock burst disasters in deep coal mines, this study focuses on the spatiotemporal evolution mechanism of mining-induced stress, introducing the novel concept of “stress flow” to characterize dynamic stress ...
Chi LIU   +7 more
doaj   +1 more source

New approaches to quantify progressive damage and associated dynamic rock mass blockiness

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
In the past decade, numerical modelling has been increasingly used for simulating the mechanical behaviour of naturally fractured rock masses. In this paper, we introduce new algorithms for spatial and temporal analyses of newly generated fractures and ...
Ladan Karimi Sharif   +2 more
doaj   +1 more source

Development of FDEM and applicability to river embankment survey

open access: yesJiban Kogaku Janaru (Japanese Geotechnical Journal), 2009
河川堤防の安全性を検討する場合、対象区間においてボーリング調査をポイント的に行いボーリング間の地層については補完的に設定していることが一般的と思われる。しかし、ボーリング地点の間隔が長い場合、その区間内がボーリング結果から補完した地層区分どおりの状態であるとは限らず、脆弱層の見落とし等が懸念される。本研究において周波数領域電磁探査法(Frequency Domain Electromagnetic Method:以下、略してFDEM探査法と呼ぶ)は、従来のFDEM探査機を改良開発したもので、探査機を地表面に置くだけで非破壊的に直下の比抵抗分布を迅速に探査することが可能である。したがって、河川堤防のような長い区間の地層状態を比抵抗分布から推定する手法に適していると思われ ...
Tatsuo KATAYAMA   +4 more
openaire   +2 more sources

Numerical Simulation of the Vibration Response of, and Damage to, a Deep Foundation Pit Under Multiple Blasting Events

open access: yesAdvances in Civil Engineering, Volume 2026, Issue 1, 2026.
To address the disturbance and damage to the surrounding rock and retaining piles caused by blasting excavation in deep foundation pits, the vibration response and cumulative damage under multiple blasting events were investigated through numerical simulations.
Jingkun Li   +6 more
wiley   +1 more source

La música a la catedral de Tortosa a principi del segle XVIII : el memorial de l'organista Tomàs Serrano [PDF]

open access: yes, 1998
This article outlines the musical profile for the chapel of the Seu de Tortosa (Catalonia) throughout the 1 8 ~ ~ and lgfh centuries. The death of B. Sanz, the choirmaster, resulted in the need to hold competitive examinations for the post, which were ...
Gregori i Cifré, Josep M.,
core   +1 more source

Integrated Electromagnetic Mapping Through K‐Means to Improve Identification of Areas of Archaeological Interest

open access: yesArchaeological Prospection, Volume 32, Issue 4, Page 797-811, October/December 2025.
ABSTRACT This study proposes a procedure to improve the interpretation of data from the Frequency Domain ElectroMagnetic method (FDEM), a geophysical technique with high benefit–cost ratios in archaeology. This method enables the simultaneous analysis of electrical and magnetic properties of the investigated medium, providing data as in‐phase and out ...
Angelica Capozzoli   +4 more
wiley   +1 more source

Application of the FDEM Based on the CZM in Simulating Three-Point Bending Test of Frozen Soil

open access: yesAtmosphere, 2022
The combined finite–discrete element method (FDEM) based on the cohesive zone model (the CZM) achieves cracking simulation by inserting cohesive elements between solid elements.
Yongtao Wang   +6 more
doaj   +1 more source

FDEM: how we make the FDM more flexible than the FEM

open access: yesJournal of Computational and Applied Mathematics, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Schönauer, Willi, Adolph, Torsten
openaire   +1 more source

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