Kun Xu – författare & böcker

A Unified Computational Fluid Dynamics Framework from Rarefied to Continuum Regimes

Häftad, Engelska, 2021

230 kr

Skickas inom 7-10 vardagar

This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equations. With the variation-of-cell Knudsen number, continuous modelling equations in different regimes have been obtained, and the Boltzmann and Navier-Stokes equations become two limiting equations in the kinetic and hydrodynamic scales. The unified algorithms include the discrete velocity method (DVM)-based unified gas-kinetic scheme (UGKS), the particlebased unified gas-kinetic particle method (UGKP), and the wave and particle-based unified gas-kinetic wave-particle method (UGKWP). The UGKWP is a multi-scale method with the particle for non-equilibrium transport and wave for equilibrium evolution. The particle dynamics in the rarefied regime and the hydrodynamic flow solver in the continuum regime have been unified according to the cell's Knudsen number.

Unified Computational Fluid Dynamics Framework from Rarefied to Continuum Regimes

AvKun Xu

E-bok

PDF, Engelska, 2021

275 kr

Läs direkt efter köp

This Element presents a unified computational fluid dynamics framework from rarefied to continuum regimes. The framework is based on the direct modelling of flow physics in a discretized space. The mesh size and time step are used as modelling scales in the construction of discretized governing equations. With the variation-of-cell Knudsen number, continuous modelling equations in different regimes have been obtained, and the Boltzmann and Navier-Stokes equations become two limiting equations in the kinetic and hydrodynamic scales. The unified algorithms include the discrete velocity method (DVM)–based unified gas-kinetic scheme (UGKS), the particlebased unified gas-kinetic particle method (UGKP), and the wave and particle–based unified gas-kinetic wave-particle method (UGKWP). The UGKWP is a multi-scale method with the particle for non-equilibrium transport and wave for equilibrium evolution. The particle dynamics in the rarefied regime and the hydrodynamic flow solver in the continuum regime have been unified according to the cell''s Knudsen number.

Del 12888 - Lecture Notes in Computer Science

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part I

AvYuxin Peng,Shi-Min Hum. fl.

Häftad, Engelska, 2021

1 457 kr

Skickas inom 10-15 vardagar

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.* The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.*The conference was postponed due to the COVID-19 pandemic.

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part I

AvKun Xu,Michael Eladm. fl.

E-bok

Engelska, 2021

1 722 kr

Läs direkt efter köp

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.*

The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.

*The conference was postponed due to the COVID-19 pandemic.

Del 12889 - Lecture Notes in Computer Science

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part II

AvYuxin Peng,Shi-Min Hum. fl.

Häftad, Engelska, 2021

1 345 kr

Skickas inom 10-15 vardagar

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.* The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.*The conference was postponed due to the COVID-19 pandemic.

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part II

AvKun Xu,Michael Eladm. fl.

E-bok

Engelska, 2021

1 722 kr

Läs direkt efter köp

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.*

The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.

*The conference was postponed due to the COVID-19 pandemic.

Del 12890 - Lecture Notes in Computer Science

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part III

AvYuxin Peng,Shi-Min Hum. fl.

Häftad, Engelska, 2021

1 345 kr

Skickas inom 10-15 vardagar

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.* The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.*The conference was postponed due to the COVID-19 pandemic.

Image and Graphics

11th International Conference, ICIG 2021, Haikou, China, August 6–8, 2021, Proceedings, Part III

AvKun Xu,Michael Eladm. fl.

E-bok

Engelska, 2021

1 722 kr

Läs direkt efter köp

This three-volume set LNCS 12888, 12898, and 12890 constitutes the refereed conference proceedings of the 11th International Conference on Image and Graphics, ICIG 2021, held in Haikou, China, in August 2021.*

The 198 full papers presented were selected from 421 submissions and focus on advances of theory, techniques and algorithms as well as innovative technologies of image, video and graphics processing and fostering innovation, entrepreneurship, and networking.

*The conference was postponed due to the COVID-19 pandemic.

Computational Fluid Dynamics Based on the Unified Coordinates

AvKun Xu,Wai-How Hui

E-bok

PDF, Engelska, 2012

1 542 kr

Läs direkt efter köp

"Computational Fluid Dynamics Based on the Unified Coordinates" reviews the relative advantages and drawbacks of Eulerian and Lagrangian coordinates as well as the Arbitrary Lagrangian-Eulerian (ALE) and various moving mesh methods in Computational Fluid Dynamics (CFD) for one- and multi-dimensional flows. It then systematically introduces the unified coordinate approach to CFD, illustrated with numerous examples and comparisons to clarify its relation with existing approaches. The book is intended for researchers, graduate students and practitioners in the field of Computational Fluid Dynamics.

Emeritus Professor Wai-Hou Hui and Professor Kun Xu both work at the Department of Mathematics of the Hong Kong University of Science & Technology, Hong Kong, China.

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

A Reinforcement Learning Perspective

AvZhiyong Du,Bin Jiangm. fl.

Inbunden, Engelska, 2019

1 090 kr

Skickas inom 10-15 vardagar

This book presents reinforcement learning (RL) based solutions for user-centric online network selection optimization. The main content can be divided into three parts. The first part (chapter 2 and 3) focuses on how to learning the best network when QoE is revealed beyond QoS under the framework of multi-armed bandit (MAB). The second part (chapter 4 and 5) focuses on how to meet dynamic user demand in complex and uncertain heterogeneous wireless networks under the framework of markov decision process (MDP). The third part (chapter 6 and 7) focuses on how to meet heterogeneous user demand for multiple users inlarge-scale networks under the framework of game theory. Efficient RL algorithms with practical constraints and considerations are proposed to optimize QoE for realizing intelligent online network selection for future mobile networks. This book is intended as a reference resource for researchers and designers in resource management of 5G networks and beyond.

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

A Reinforcement Learning Perspective

AvKun Xu,Yuhua Xum. fl.

E-bok

Engelska, 2019

1 367 kr

Läs direkt efter köp

This book presents reinforcement learning (RL) based solutions for user-centric online network selection optimization. The main content can be divided into three parts. The first part (chapter 2 and 3) focuses on how to learning the best network when QoE is revealed beyond QoS under the framework of multi-armed bandit (MAB). The second part (chapter 4 and 5) focuses on how to meet dynamic user demand in complex and uncertain heterogeneous wireless networks under the framework of markov decision process (MDP). The third part (chapter 6 and 7) focuses on how to meet heterogeneous user demand for multiple users inlarge-scale networks under the framework of game theory. Efficient RL algorithms with practical constraints and considerations are proposed to optimize QoE for realizing intelligent online network selection for future mobile networks. This book is intended as a reference resource for researchers and designers in resource management of 5G networks and beyond.

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

A Reinforcement Learning Perspective

AvZhiyong Du,Bin Jiangm. fl.

Häftad, Engelska, 2020

1 090 kr

Skickas inom 10-15 vardagar

This book presents reinforcement learning (RL) based solutions for user-centric online network selection optimization. The main content can be divided into three parts. The first part (chapter 2 and 3) focuses on how to learning the best network when QoE is revealed beyond QoS under the framework of multi-armed bandit (MAB). The second part (chapter 4 and 5) focuses on how to meet dynamic user demand in complex and uncertain heterogeneous wireless networks under the framework of markov decision process (MDP). The third part (chapter 6 and 7) focuses on how to meet heterogeneous user demand for multiple users inlarge-scale networks under the framework of game theory. Efficient RL algorithms with practical constraints and considerations are proposed to optimize QoE for realizing intelligent online network selection for future mobile networks. This book is intended as a reference resource for researchers and designers in resource management of 5G networks and beyond.

Del 4 - Advances In Computational Fluid Dynamics

Direct Modeling For Computational Fluid Dynamics: Construction And Application Of Unified Gas-kinetic Schemes

AvKun Xu

Inbunden, Engelska, 2015

1 618 kr

Skickas inom 5-8 vardagar

Computational fluid dynamics (CFD) studies the flow motion in a discretized space. Its basic scale resolved is the mesh size and time step. The CFD algorithm can be constructed through a direct modeling of flow motion in such a space. This book presents the principle of direct modeling for the CFD algorithm development, and the construction unified gas-kinetic scheme (UGKS). The UGKS accurately captures the gas evolution from rarefied to continuum flows. Numerically it provides a continuous spectrum of governing equation in the whole flow regimes.

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Kun Xu – författare

A Unified Computational Fluid Dynamics Framework from Rarefied to Continuum Regimes

Unified Computational Fluid Dynamics Framework from Rarefied to Continuum Regimes

Image and Graphics

Image and Graphics

Image and Graphics

Image and Graphics

Image and Graphics

Image and Graphics

Computational Fluid Dynamics Based on the Unified Coordinates

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

Towards User-Centric Intelligent Network Selection in 5G Heterogeneous Wireless Networks

Direct Modeling For Computational Fluid Dynamics: Construction And Application Of Unified Gas-kinetic Schemes

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