Results 71 to 80 of about 53,283 (278)

Analytical stress solution framework for lined compressed air energy storage chambers and its application to safe burial depth determination and supporting effectiveness evaluation

Deep Underground Science and Engineering, EarlyView.
An analytical framework delivers a closed‐form stress solution for lined compressed air energy storage chambers, enabling the determination of the minimum safe burial depth. The solution quantitatively evaluates lining support effectiveness, offering a reliable tool for chamber design and optimization.
Zeyuan Sun, Cheng Zhao, Jinquan Xing, Qinyuan Luo   +3 more
wiley   +1 more source

Monotonicity properties and bounds for the complete p-elliptic integrals

AIMS Mathematics, 2020
In the article, we establish some monotonicity properties for certain functions involving the complete p-elliptic integrals of the first and second kinds, and find several sharp bounds for the p-elliptic integrals. Our results are the generalizations and
Xi-Fan Huang, Miao-Kun Wang, Hao Shao, Yi-Fan Zhao, Yu-Ming Chu   +4 more
doaj   +1 more source

Separation of variables for A2 Ruijsenaars model and new integral representation for A2 Macdonald polynomials

, 1996
Using the Baker-Akhiezer function technique we construct a separation of variables for the classical trigonometric 3-particle Ruijsenaars model (relativistic generalization of Calogero-Moser-Sutherland model).
Andrews G, Arnold V I, Braden H W, E K Sklyanin, Erdelyi A, Exton H, Floreanini R, Gasper G, Jackson F H, Kirillov A N, Koornwinder T H, Kuznetsov V B, Kuznetsov V B, Macdonald I G, Macdonald I G, Mangazeev V V, Noumi M, Ruijsenaars S N M, Sklyanin E K, Sklyanin E K, V B Kuznetsov, van Diejen J F   +21 more
core   +3 more sources

Neural Network Models for Solar Irradiance Forecasting in Polluted Areas: A Comparative Study

Energy Science &Engineering, EarlyView.
Pollution‐aware hybrid ensemble model is proposed to forecast solar irradiance across eight diverse cities. The model integrates MLP, RNN, and NARX to handle varying atmospheric pollution levels. The model outperforms state‐of‐the‐art methods with enhanced accuracy and interpretability on standard solar irradiance data set.
Mujtaba Ali, Muhammad Yaqoob Javed, Aamer Bilal Asghar, Khurram Hashmi, Abbas Javed, Basem Alamri, Krzysztof Ejsmont   +6 more
wiley   +1 more source

Efficient Numerical Framework for Geothermal Energy Production Optimization in Fracture‐Controlled Reservoirs

International Journal for Numerical Methods in Fluids, EarlyView.
We introduce an efficient open‐source numerical framework for the automated search for the placements of injection and production wells in hot fracture‐controlled reservoirs that sustainably optimize geothermal energy production. We model the reservoirs as discrete fracture networks in 3D. The fluid flow and heat transport in the reservoirs are modeled
Ondřej Pártl, Ernesto Meneses Rioseco
wiley   +1 more source

Trigonometric integrals evaluated in terms of Riemann zeta and Dirichlet beta functions

Open Mathematics
Three classes of trigonometric integrals involving an integer parameter are evaluated by the contour integration and the residue theorem. The resulting formulae are expressed in terms of Riemann zeta function and Dirichlet beta function.
Li Jing, Chu Wenchang
doaj   +1 more source

Generalization to The AMK Integral Transform and Its Applications [PDF]

مجلة جامعة الانبار للعلوم الصرفة
Since the proposal of Laplace to integral transformation in 1780, many integral transformations have been proposed. Some are based on Laplace, and others are totally independent.
Mohanad Salman, Qin Zhao
doaj   +1 more source

INTEGRABILITY OF TRIGONOMETRIC SERIES

Tamkang Journal of Mathematics, 1990
Generalization of the theorems of Taljakovskii [7] and Sing and Sharma [5] have been obtained.
openaire   +4 more sources

The Impact of Democratization and Globalization on Environmental Sustainability in Brazil

Geological Journal, EarlyView.
Fossil fuel, economic globalisation, and economic growth drive environmental degradation while democratisation positively influences environmental quality. ABSTRACT Although Brazil still possesses significant ecological reserves, the surplus in its biocapacity has been rapidly declining in recent years.
Mustafa Naimoğlu, Mehmet Metin Dam, Serdar Ongan, Andrew Adewale Alola   +3 more
wiley   +1 more source

Exploring Explicit Definite Integral Formulae with Trigonometric and Hyperbolic Functions

Axioms
Making use of integration by parts and variable replacement methods, we derive some interesting explicit definite integral formulae involving trigonometric or hyperbolic functions, whose results are expressed in terms of Catalan’s constant, Dirichlet’s ...
Yulei Chen, Dongwei Guo
doaj   +1 more source