Results 51 to 60 of about 2,810,127 (209)

A mesoscale numerical approach to predict damage behavior in concrete basing on phase field method

open access: yesVietnam Journal of Mechanics, 2021
In this paper, we develop a numerical approach to simulate the 2D complex damage and fracture process of quasi-brittle concrete materials. Based on the phase field theory for the case of elastic isotropic multicomponent materials and the generation ...
Nguyen Hoang Quan   +2 more
doaj   +1 more source

Calculation of the Two-body T-matrix in Configuration Space

open access: yes, 2007
A spectral integral method (IEM) for solving the two-body Schroedinger equation in configuration space is generalized to the calculation of the corresponding T-matrix. It is found that the desirable features of the IEM, such as the economy of mesh-points
George Rawitscher   +3 more
core   +1 more source

An Adaptive Kriging-Based Fourth-Moment Reliability Analysis Method for Engineering Structures

open access: yesApplied Sciences
The fourth-moment method can accurately perform a reliability analysis when it is challenging to determine the distribution of the random variable due to limited available samples.
Shiyuan E   +3 more
doaj   +1 more source

Multi-Dimensional Analytic Functions for Laplace Equations and Generalized Cauchy–Riemann Equations

open access: yesMathematics
A new concept of projective solution is introduced for the multi-dimensional Laplace equations. We project the field point onto a characteristic vector to obtain a projective variable, which can be used to reduce the Laplace equations to a second-order ...
Chein-Shan Liu   +2 more
doaj   +1 more source

Derivation and application of an analytical rock displacement solution on rectangular cavern wall using the inverse mapping method. [PDF]

open access: yesPLoS ONE, 2017
Rectangular caverns are increasingly used in underground engineering projects, the failure mechanism of rectangular cavern wall rock is significantly different as a result of the cross-sectional shape and variations in wall stress distributions. However,
Mingzhong Gao   +5 more
doaj   +1 more source

Reconstructing non-equilibrium regimes of quantum many-body systems from the analytical structure of perturbative expansions

open access: yes, 2019
We propose a systematic approach to the non-equilibrium dynamics of strongly interacting many-body quantum systems, building upon the standard perturbative expansion in the Coulomb interaction.
Bertrand, Corentin   +3 more
core   +2 more sources

Dynamic Modified Chaotic Particle Swarm Optimization for Radar Signal Sorting

open access: yesIEEE Access, 2021
Radar signal sorting is the core part of electronic support measures, which is responsible for deinterleaving the overlapping pulse sequences received by the receiver from the complex environment, separating different radiation source signals, and ...
Xiaoyan Wang   +3 more
doaj   +1 more source

The O- and B-Type Stellar Population in W3: Beyond the High-Density Layer

open access: yes, 2015
We present the first results from our survey of the star-forming complex W3, combining VRI photometry with multiobject spectroscopy to identify and characterize the high-mass stellar population across the region.
Bagley, Micaela B.   +4 more
core   +1 more source

Selecting Visualization Alternative Based on Uncertain Theory

open access: yesMATEC Web of Conferences, 2017
Multiple attribute decision making (MADM) is an efficient way to solve complex systems, and has wide application. This research develops MCDM model based on uncertain theory, used for selecting a suitable visualization alternative for tourism.
Huang Ping, Lv Zhiying, Zheng Liwei
doaj   +1 more source

COMPLEX VARIABLE FUNCTION SOLUTIONS OF MIXED-MODE STRESS INTENSITY FACTORS FOR TWO CRACKS OF ARBITRARY LENGTH EMANATING FROM AN ELLIPTICAL HOLE

open access: yesJixie qiangdu, 2019
In order to calculate the stress intensity factors of two-dimensional cracks emanating from elliptical hole, a solution method for stress intensity factor based on Muskhelishvili complex function theory and truncated conformal mapping approach is ...
ZHU QingYu, ZHOU Rui
doaj  

Home - About - Disclaimer - Privacy