Results 121 to 130 of about 30,859 (297)

Resonance‐induced restoration of rock permeability degraded by heavy components of crude oil

Deep Underground Science and Engineering, EarlyView.
Resonance‐induced changes occur in filtration properties of sedimentary rocks in crude paraffin oil flow under acoustic vibrations. Experimental data on (a) pressure drop; (b) permeability; (c) pressure at the rock inlet; and (d) pressure at the rock outlet are presented.
Evgenii Riabokon, Qian Yin, Mikhail Guzev, Mikhail Turbakov, Evgenii Kozhevnikov, Nadezhda Riabokon, Ivan Panteleev   +6 more
wiley   +1 more source

Analyzing multiplicative noise effects on stochastic dynamical ϕ4 equation using the new extended direct algebraic method

Alexandria Engineering Journal
The stochastic dynamical ϕ4 equation is obtained by adding a multiplicative noise term to the classical ϕ4 equation. The noise term represents the random fluctuations that are present in the system and is modeled by a Wiener process.
Zuha Manzoor, Muhammad Sajid Iqbal, Nader Omer, Mohammed Zakarya, Mohammad Kanan, Ali Akgül, Shabbir Hussain, Farrah Ashraf   +7 more
doaj   +1 more source

Noncommutative Algebraic Equations and Noncommutative Eigenvalue Problem [PDF]

, 2000
Albert Schwarz
openalex   +1 more source

Structural Analysis by Modified Signature Matrix for Integro-differential-algebraic Equations [PDF]

, 2023
Wenqiang Yang, Wenyuan Wu, Greg Reid
openalex   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

A New Monte Carlo Algorithm for Linear Algebraic Systems Based on the ``Walk on Equations'' Algorithm [PDF]

, 2018
Venelin Todorov, Nikolay Ikonomov, Ivan Dimov, Rayna Georgieva   +3 more
openalex   +1 more source

Review and prospects of shear test of bolted rock joints

Deep Underground Science and Engineering, EarlyView.
The laboratory shear test equipment, test method, and numerical simulation of bolted rock joints were summarized. The shortcomings and limitations of the current research were analyzed, and the research prospects were proposed. Abstract Rock bolting is a critical approach in geotechnical engineering for supporting weak rocks.
Shulin Ren, Fan Yang, Manchao He, Yong Yuan, Zhigang Tao   +4 more
wiley   +1 more source

Differentiated policy implementation in food safety and animal welfare policymaking

European Policy Analysis, EarlyView.
Abstract Agri‐food policies are in the midst of far‐reaching transitions, including the transformation towards sustainable production and food consumption. The European Green Deal and Farm to Fork Strategy prioritize food safety and animal welfare issues, aiming to transform food systems towards more sustainability.
Giulia Bazzan, Colette S. Vogeler
wiley   +1 more source

The geometry of the generalized algebraic Riccati equation and of the singular Hamiltonian system [PDF]

, 2018
Lorenzo Ntogramatzidis, Augusto Ferrante
openalex   +1 more source

Seismic Structural Response and Loss Estimation for Dense Urban Districts Using Neural Network Parameterized Gaussian Process

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Earthquakes pose a major threat to urban areas, causing fatalities, injuries, and significant economic losses. This study proposes a Gaussian process parametrized by deep neural networks (DNN–GP) as an efficient surrogate for assessing seismic losses of building structures at a regional scale.
Byeongseong Choi, Sang‐ri Yi, Taeyong Kim   +2 more
wiley   +1 more source