This book explores the fundamental principles and theories that foster a practical and intuitive understanding of quantum mechanics. Each chapter is concluded with real-world applications, animations, and discussion questions to help readers better visualize and understand quantum phenomena. It is suitable for undergraduate students in physics and related fields who are looking to learn and strengthen their foundational understanding of quantum mechanics. Originally designed for bilingual teaching and learning, the book considers differences in cultural background and pedagogical approach, especially their potential influence on scientific reasoning and habitual expression, aiming to bridge those differences from new perspectives.

This book is an academic monograph based on several decades of research in fieldworks, laboratory studies, and references to a large amount of literature. The whole book is divided into an introduction section which includes: the History of Chinese Amphibian Studies, the Overview of China’s Nature, the Biodiversity and Geographical Distribution of the Amphibians of China, the Ecological Types of the Amphibians of China, the Taxonomic Terms and Measurements of the Amphibians. And followed by a taxonomic section which includes detailed descriptions of China’s known 13 families, 87 genera and 421 species with their Latin names, English names, synonyms, morphological characteristics, biological data, population status, geographic distribution, discussions of classification, and the key to adult amphibians. 

The monograph is divided into two volumes. 

Volume I contains chapters on the introduction, the GYMNOPHIONA, the URODELA and ANURA (including Bombinatoridae, Megophyidae, Bufonidae and Hylidae) totaling more than 200 species and subspecies. 

Volume II includes the Ranidae, Dicroglossidae, Occidozygidae, Rhacophoridae, Microhylidae and 4 introduced species, totaling about 221 species.

This book is an academic monograph based on several decades of research in fieldworks, laboratory studies, and references to a large amount of literature. The whole book is divided into an introduction section which includes: the History of Chinese Amphibian Studies, the Overview of China’s Nature, the Biodiversity and Geographical Distribution of the Amphibians of China, the Ecological Types of the Amphibians of China, the Taxonomic Terms and Measurements of the Amphibians. And followed by a taxonomic section which includes detailed descriptions of China’s known 13 families, 87 genera and 421 species with their Latin names, English names, synonyms, morphological characteristics, biological data, population status, geographic distribution, discussions of classification, and the key to adult amphibians. 

The monograph is divided into two volumes. 

Volume I contains chapters on the introduction, the GYMNOPHIONA, the URODELA and ANURA (including Bombinatoridae, Megophyidae, Bufonidae and Hylidae) totaling more than 200 species and subspecies. 

Volume II includes the Ranidae, Dicroglossidae, Occidozygidae, Rhacophoridae, Microhylidae and 4 introduced species, totaling about 221 species.

This book presents recent advances on the global existence and decay estimates of solutions to two important classes of damped wave equations, with particular emphasis on the double dispersion equation and related models. Building on the author’s work with collaborators, the volume brings together results previously scattered across research papers, alongside new material published here for the first time. It offers a unified perspective on the long-standing problem of global existence and the asymptotic behavior of dissipative hyperbolic equations, including convergence toward equilibrium and optimal decay properties.

The book is organized into eight chapters. The opening chapter reviews essential tools from Fourier analysis, Sobolev spaces, and fundamental inequalities. Subsequent chapters investigate the asymptotic profiles, decay rates, and pointwise behavior of solutions to regularity-gained double dispersion equations, followed by a systematic study of regularity-loss wave equations. Techniques such as time-weighted energy methods and refined asymptotic analysis are developed to address weak dissipation and nonlinear effects, establishing global existence and precise decay estimates under suitable initial conditions and spatial dimensions.

Combining rigorous theory with clear structure, this book highlights both foundational methods and recent progress in nonlinear partial differential equations. It is intended for graduate students, researchers, and specialists interested in nonlinear wave phenomena, dissipative systems, and modern analytical techniques in PDEs.