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This paper presents a steady-state and transient heat conduction analysis framework using the polygonal scaled boundary finite element method (PSBFEM) with polygon/quadtree meshes. The PSBFEM is implemented with commercial finite element…

Numerical Analysis · Mathematics 2021-06-24 Yang Yang , Zongliang Zhang , Yelin Feng , Yuzhen Yu , Kun Wang , Lihui Liang

The emergence of data-driven science has opened up new avenues for understanding the thermophysical properties of materials. For decades, alloys are known to possess very low thermal conductivity, but the extreme thermal conductivity can be…

Applied Physics · Physics 2020-04-21 Jiahao Yan , Han Wei , Han Xie , Xiaokun Gu , Hua Bao

This research presents a multi-layer optimization framework for hybrid energy storage systems (HESS) for passenger electric vehicles to increase the battery system's performance by combining multiple cell chemistries. Specifically, we…

Systems and Control · Electrical Eng. & Systems 2024-08-30 Wouter Andriesse , Jorn van Kampen , Theo Hofman

We suggest a finite-time geometric optimization framework to analyze thermal fluctuations and optimal processes in black holes. Our approach implement geodesics in thermodynamic space to define optimal pathways between equilibrium and…

General Relativity and Quantum Cosmology · Physics 2025-12-09 Vasil Avramov , Hristo Dimov , Miroslav Radomirov , Radoslav C. Rashkov , Tsvetan Vetsov

Modern package designs make use of technologies such as backside power delivery (BSPD) and 3D stacked chiplets that require accounting for the heterogeneity in back end of the line (BEOL) structures in hot-spot prediction. Multiscale…

Computational Engineering, Finance, and Science · Computer Science 2026-05-04 Mohammad Elahi , Max O. Bloomfield , Theodorian Borca-Tasciuc , Jacob S. Merson

We discuss the phase diagram of the Bose-Hubbard (BH) model in the leading-order auxiliary field (LOAF) theory. LOAF is a conserving non-perturbative approximation that treats on equal footing the normal and anomalous density condensates.…

Quantum Gases · Physics 2015-06-15 John F. Dawson , Fred Cooper , Chih-Chun Chien , Bogdan Mihaila

The current work covers the evaluation of ultrasonic and electromagnetic (EM) techniques applied to temperature measurement and flow characterization for Enhanced Geothermal System (EGS). We have evaluated both ultrasonic techniques and…

Applied Physics · Physics 2020-07-02 K. Wang , H. T. Chien , S. Liao , L. P. Yuan , S. H. Sheen , S. Bakhtiari , A. C. Raptis

Effective power and thermal management are essential for ensuring battery efficiency, safety, and longevity in Connected and Automated Electric Vehicles (CAEVs). However, real-time implementation is challenging due to the multi-timescale…

Systems and Control · Electrical Eng. & Systems 2024-11-11 Dongjun Li , Qiuhao Hu , Weiran Jiang , Haoxuan Dong , Ziyou Song

Nonequilibrium statistical models of point vortex systems are constructed using an optimal closure method, and these models are employed to approximate the relaxation toward equilibrium of systems governed by the two-dimensional Euler…

Fluid Dynamics · Physics 2018-12-26 Jonathan Maack , Bruce Turkington

We construct the black hole geometry dual to the deconfined phase of the BMN matrix model at strong 't Hooft coupling. We approach this solution from the limit of large temperature where it is approximately that of the non-extremal D0-brane…

High Energy Physics - Theory · Physics 2015-06-23 Miguel S. Costa , Lauren Greenspan , Joao Penedones , Jorge Santos

Designing Zero-Emissions Buildings (ZEBs) involves balancing numerous complex objectives that traditional methods struggle to address. Fenestration, encompassing fa\c{c}ade openings and shading systems, plays a critical role in ZEB…

Two-dimensional materials and their heterostructures have enormous applications in Electrochemical Energy Storage Systems (EESS) such as batteries. A comprehensive and solid understanding of these materials' thermal transport and mechanism…

Materials Science · Physics 2023-10-16 Dibakar Datta , Eon Soo Lee

It is pointed out that Hantush's \emph{M} function, commonly used in groundwater pumping modeling, is identical to the function known in the problems of heat conduction in the ground. A modified Hantush function $E$ used in the steady-state…

We propose an optimal operation control strategy for an electro-thermal microgrid. Compared to existing work, our approach increases flexibility by operating the thermal network with variable flow temperatures and in that way explicitly…

Systems and Control · Electrical Eng. & Systems 2024-04-03 Max Rose , Christian A. Hans , Johannes Schiffer

We apply a finite-time geometric optimization framework to investigate thermal fluctuations and (non)equilibrium optimal processes in the $(2+1)$-dimensional BTZ black hole. Employing Hessian thermodynamic information metrics, we construct…

General Relativity and Quantum Cosmology · Physics 2026-03-25 M. Radomirov , R. C. Rashkov , G. S. Stoilov , T. Vetsov

This paper presents experimental results that validate eco-driving and eco-heating strategies developed for connected and automated vehicles (CAVs). By exploiting vehicle-to-infrastructure (V2I) communications, traffic signal timing, and…

Systems and Control · Electrical Eng. & Systems 2021-02-04 Mohammad Reza Amini , Qiuhao Hu , Hao Wang , Yiheng Feng , Ilya Kolmanovsky , Jing Sun

Partial Differential Equations (PDEs) are widely used for modeling the physical phenomena and analyzing the dynamical behavior of many engineering and physical systems. The heat equation is one of the most well-known PDEs that captures the…

Logic in Computer Science · Computer Science 2022-08-16 Elif Deniz , Adnan Rashid , Osman Hasan , Sofiène Tahar

We consider a homogeneous non-ideal Bose gas at nonzero temperature in equilibrium below the critical temperature $T_C$ in the framework of finite temperature field theory. An algorithm is described in which a manageable subset of diagrams…

Other Condensed Matter · Physics 2015-03-13 E. Kovalchuk , R. Kobes

This paper is devoted to numerical simulations of the short-term behavior of the spatial temperature distribution in a geothermal energy storage. Such simulations are needed for the optimal control and management of residential heating…

Numerical Analysis · Mathematics 2023-04-25 Paul Honore Takam , Ralf Wunderlich , Olivier Menoukeu Pamen

In combined heat and power systems, varying mass flow can better make use of the heating system inertia to increase the flexibility of electric power systems. This is challenging, however, due to integer variables and bilinear constraints…

Systems and Control · Electrical Eng. & Systems 2020-12-01 Xin Qin , Ye Guo , Xinwei Shen , Hongbin Sun