Results 121 to 130 of about 160,813 (290)

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

T-duality of emergent gravities on nilmanifolds

Journal of High Energy Physics
We study the transport of generalized metrics between topological T-dual nil-manifolds through a Lie algebraic point of view. Emergent gravities are generalized metrics with symplectic B-fields.
Raju Roychowdhury, Leonardo Soriani
doaj   +1 more source

The positive geometry for 𝜙 p interactions

Journal of High Energy Physics, 2019
Starting with the seminal work of Arkani-Hamed et al. [1], in [2], the “Ampli- tuhedron program” was extended to analyzing (planar) amplitudes in massless 𝜙 4 theory.
Prashanth Raman
doaj   +1 more source

Differential geometry on Hopf algebras and quantum groups [PDF]

, 1994
The differential geometry on a Hopf algebra is constructed, by using the basic axioms of Hopf algebras and noncommutative differential geometry. The space of generalized derivations on a Hopf algebra of functions is presented via the smash product, and used to define and discuss quantum Lie algebras and their properties.
openaire   +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

Numerical Investigation of Turbulent Mixed Convection Between Coaxial Cylinders and the Inner Rotating Cylinder With Axial Flow

Energy Science &Engineering, EarlyView.
ABSTRACT The turbulent flow between coaxial cylinders, particularly when the inner cylinder is rotating, exhibits complex hydrodynamic and heat transfer behaviors critical for various engineering applications. Although many previous studies have simplified these systems with idealized assumptions, real‐world scenarios involve mixed convection and ...
Tohid Adibi, Seyed Esmail Razavi, Shams Forruque Ahmed, Parvaneh Alizadeh Bonab, J. C. Debnath, Hammad Alotaibi   +5 more
wiley   +1 more source

Magneto‐Hydrothermal and Entropy Analysis of Double‐Diffusive Convection in a Nano‐Encapsulated PCM‐Suspended Elliptical Pipes Thermal Storage Tank: Impact of Exothermic Reaction

Energy Science &Engineering, EarlyView.
ABSTRACT PCMs store thermal energy during phase transitions without temperature changes, making them valuable for various thermal applications. When direct PCM use isn't practical, researchers have developed encapsulation methods as an alternative approach.
Mohammed Azeez Alomari, Ahmed M. Hassan, Abdellatif M. Sadeq, Faris Alqurashi, Mujtaba A. Flayyih   +4 more
wiley   +1 more source

Fixed Point Theorems for Hypersequences and the Foundation of Generalized Differential Geometry I: The Simplified Algebra

, 2022
S. O. Juriaans, J. Oliveira
openalex   +2 more sources

A Method Combining Model Optimization Algorithm and Grey Relational Analysis for Analyzing Factors Affecting Photovoltaic Cell Output Characteristics

Energy Science &Engineering, EarlyView.
For output power, light intensity has the highest correlation, indicating that light intensity is the most sensitive factor affecting the output power of PV cells, and its changes have the most significant impact on output power. The change in temperature will lead to changes in the concentration and mobility of carrier inside the battery, which will ...
Biying Zhou, Peng Zhang
wiley   +1 more source

Reductions of GKZ systems and applications to cosmological correlators

Journal of High Energy Physics
A powerful approach to computing Feynman integrals or cosmological correlators is to consider them as solution to systems of differential equations. Often these can be chosen to be Gelfand-Kapranov-Zelevinsky (GKZ) systems.
Thomas W. Grimm, Arno Hoefnagels
doaj   +1 more source