Results 131 to 140 of about 4,610,839 (303)

Three‐Dimensional Analytical Model of a Podium Structure With Rocking Columns of Square Cross Section

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Allowing structural systems to uplift and rock during seismic excitation has emerged as an effective and inherently self‑centering form of seismic isolation. This paper develops a computationally efficient 3D analytical model suitable for the understanding of the behavior of rocking bridges.
Dimitra Adamopoulou   +1 more
wiley   +1 more source

The contribution of pattern recognition of seismic and morphostructural data to seismic hazard assessment

open access: yes, 2014
The reliable statistical characterization of the spatial and temporal properties of large earthquakes occurrence is one of the most debated issues in seismic hazard assessment, due to the unavoidably limited observations from past events. We show that pattern recognition techniques, which are designed in a formal and testable way, may provide ...
PERESAN, ANTONELLA   +3 more
openaire   +3 more sources

Displacement Estimation of Structures With Flag‐Shaped Hysteresis Loops

open access: yesEarthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Time‐history analyses were conducted on single‐degree‐of‐freedom (SDOF) systems with flag‐shaped hysteresis loops using a far‐field ground motion suite to estimate peak displacements, Δp, and equivalent deformation cycles, Nc, associated with cumulative displacement demands.
Yudi Zhang   +5 more
wiley   +1 more source

Optimization of Blasting‑Induced Roof Cutting Parameters in Key Stratum and Its Application in Gob‑Side Entry Retention Technology

open access: yesEnergy Science &Engineering, EarlyView.
This study addresses hard roof coal seam conditions by optimizing key stratum blasting‐cutting parameters through theoretical analysis, numerical simulation, and field tests. It proposes calculation methods for blast hole spacing and delay timing based on stress wave theory, controlling roadway deformation within 35 mm, thereby enhancing resource ...
Qiong Liu, Duanxiang Fu, Hongbin Li
wiley   +1 more source

Adaptive multiagent system for seismic emergency management [PDF]

open access: yes
Presently, most multiagent frameworks are typically programmed in Java. Since the JADE platform has been recently ported to .NET, we used it to create an adaptive multiagent system where the knowledge base of the agents is managed using the CLIPS ...
Mihai Horia ZAHARIA   +2 more
core  

Effects of mining subsidence observed by time-lapse seismic reflection profiling [PDF]

open access: yes, 1995
Extracting coal from underground mineworkings causes the overlying rocks to subside with associated changes in the stress regime. The aim of the study reported here was to apply the surface seismic reflection method to study the effect of subsidence on ...
Al-Rawahy, Salim Y.S.
core  

Characteristics Analysis and Stage Division of Class Ⅰ Gas Hydrate Deposit Developed by Vertical Well and Depressurization Based on Numerical Analysis

open access: yesEnergy Science &Engineering, EarlyView.
The production process can be divided into two stages according to the relationship between the gas production rate and the decomposition gas rate. The ratio of cumulative decomposition gas to cumulative gas production can be used to evaluate the contribution of the gas hydrate layer.
Nu Lu   +4 more
wiley   +1 more source

The Seismic Evaluation of Existing Buildings for Energy Renovation—A Case Study for the Residential Building Stock in Bucharest (Romania)

open access: yesBuildings
This study focuses on an overview of two programs applied to the residential building stock of Bucharest (Romania), namely, the seismic strengthening program and the thermal rehabilitation program. The methodology for seismic risk assessment given in the
Florin Pavel, George Nica
doaj   +1 more source

Deterministic Cost Estimation Approaches for Carbon Capture, Utilization, and Storage: A Review

open access: yesGreenhouse Gases: Science and Technology, EarlyView.
ABSTRACT Carbon capture, utilization, and storage (CCUS) is regarded as a connection between traditional, high‐emission sectors and future green energy. This study encompasses literature from 2003 to early 2026 to review methodologies and formulae used for cost estimating in the various segments of carbon capture, transport, utilization, and storage ...
Majid Mohajeri, Saman Azadbakht
wiley   +1 more source

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