Yuan Wang – författare

The growing presence of China in Africa has drawn increasing scholarly and public attention. With Beijing's announcement of the 'going global' policy in the early 2000s and further institutionalization through the Belt and Road Initiative in 2013, Chinese policy banks and state-owned companies have cooperated with African countries to finance and complete multiple infrastructure projects. These projects, despite their 'Chinese-ness,' demonstrate starkly different development trajectories in different countries. Why do some Chinese-financed and constructed projects develop better than others? And what explains the variation in the effectiveness of different African states with regard to public goods delivery? The Railpolitik: Leadership and Agency in Sino-African Infrastructure Development uses three case studies of Chinese-financed and constructed rail projects to explore the broader phenomenon of the fast-progressing relations between China and Africa and to offer insights into African domestic politics. Relying primarily on over 250 in-depth interviews and unpublished documents collected during extensive fieldwork from 2014-2019 in Kenya, Ethiopia, Angola, and China, Yuan Wang traces the trajectories of the Standard Gauge Railway in Kenya, the Addis Ababa-Djibouti Railway in Ethiopia, and the Caminho de Ferro de Benguela in Angola, and finds that African political championship is the central factor that determines the outcomes of this type of project. Contrary to the conventional understanding that centralized political institutions such as those in the developmental states are more conducive to rulers' commitment to developmental projects, the book finds that political championship can be generated from leaders' perceived threats of competitive elections in democratic states such as Kenya. These Chinese-financed and constructed projects coincided with African rulers' strategies for political survival, and are therefore instrumentalized politically to demonstrate rulers' performance legitimacy and to fuel their patronage machine. Oxford Studies in African Politics and International Relations is a series for scholars and students working on African politics and International Relations and related disciplines. Volumes concentrate on contemporary developments in African political science, political economy, and International Relations, such as electoral politics, democratization, decentralization, the political impact of natural resources, the dynamics and consequences of conflict, and the nature of the continent's engagement with the East and West. Comparative and mixed methods work is particularly encouraged. Case studies are welcomed but should demonstrate the broader theoretical and empirical implications of the study and its wider relevance to contemporary debates. The series focuses on sub-Saharan Africa, although proposals that explain how the region engages with North Africa and other parts of the world are of interest.Series Editors: Nic Cheeseman, Professor of Democracy and International Development, University of Birmingham; Ricardo Soares de Oliveira, Professor of the International Politics of Africa, University of Oxford; Peace Medie, Senior Lecturer, School of Sociology, Politics, and International Studies, University of Bristol.

Award-Winner in the Cookbooks: International category of the 2010 International Book Awards Ancient Wisdom, Modern Kitchen reveals how easy it is to tap into the 3,000-year-old secrets of the Eastern healing arts. This entertaining and easy-to-use book provides scores of delicious recipes, anecdotes about various herbs and foods, and all you need to know about acquiring ingredients- even if you don't know the difference between a lotus seed and the lotus position. Highlighting"superfoods,” such as goji berries, as well as more familiar ingredients like ginger, garlic, and mint, Ancient Wisdom, Modern Kitchen includes indispensible information: ? An overview of traditional Chinese medicine, herbs, and food therapy ? Details on 100 healthy Asian ingredients ? Healing recipes for common health concerns, including fatigue, menopause, high cholesterol, weight control, and diabetes

This book gathers the latest research and practical innovations that tackle critical issues in geotechnical design, hazard mitigation, and intelligent simulation. Advances in geomechanics and computational methods are transforming how engineers and researchers address infrastructure safety and resilience. By linking theoretical progress with engineering practice, it delivers actionable insights for improving system reliability and reducing risks to communities.The book explores three major themes. The first focuses on geomechanics and constitutive modeling, analyzing the behavior of geomaterials under varied environmental and loading conditions. Both established approaches, such as elastoplasticity and critical state soil mechanics, and advanced multi-field coupling models are presented, with attention to experimental validation and parameter calibration for accurate modeling.The second theme addresses geotechnical engineering and hazard mitigation. Topics include foundation stability, slope reinforcement, tunneling mechanics, and retaining wall design, supported by real-world case studies. Special focus is given to geohazard risk assessment of earthquakes, landslides, and subsidence. The integration of monitoring tools, remote sensing, and IoT-based sensing systems is highlighted as a path toward proactive early warning and disaster management.The third theme highlights numerical simulation and intelligent computing in geomechanics. Finite and discrete element methods are discussed alongside deep learning, Bayesian optimization, high-performance computing, and digital twins. These techniques enable real-time decision support, enhance efficiency, and open new opportunities for adaptive and intelligent geotechnical analysis.This book stands out by uniting geomechanics, modeling, simulation, and intelligent technologies in one resource. It serves as a valuable reference for researchers, engineers, and practitioners in civil and geotechnical engineering as well as computational modeling. Graduate students and professionals aiming to deepen their expertise in geomechanics and disaster resilience will also benefit. The content supports academic study and engineering practice, bridging theory and application to address urgent challenges in infrastructure development and geohazard prevention.

The classical circle method of Hardy and Littlewood is one of the most effective methods of additive number theory. Two examples are its success with Waring's problem and Goldbach's conjecture. In this book, Wang offers instances of generalizations of important results on diophantine equations and inequalities over rational fields to algebraic number fields. The book also contains an account of Siegel's generalized circle method and its applications to Waring's problem and additive equations and an account of Schmidt's method on diophantine equations and inequalities in several variables in algebraic number fields.

The circle method has its genesis in a paper of Hardy and Ramanujan (see [Hardy 1])in 1918concernedwiththepartitionfunction andtheproblemofrep- resenting numbers as sums ofsquares. Later, in a series of papers beginning in 1920entitled "some problems of'partitio numerorum", Hardy and Littlewood (see [Hardy 1]) created and developed systematically a new analytic method, the circle method in additive number theory. The most famous problems in ad- ditive number theory, namely Waring's problem and Goldbach's problem, are treated in their papers. The circle method is also called the Hardy-Littlewood method. Waring's problem may be described as follows: For every integer k 2 2, there is a number s= s( k) such that every positive integer N is representable as (1) where Xi arenon-negative integers. This assertion wasfirst proved by Hilbert [1] in 1909. Using their powerful circle method, Hardy and Littlewood obtained a deeper result on Waring's problem. They established an asymptotic formula for rs(N), the number of representations of N in the form (1), namely k 1 provided that 8 2 (k - 2)2 - +5. Here

The international symposium on number theory and analysis in memory of the late famous Chinese mathematician Prof. Hua Loo Keng was co-sponsored by the Institute of Mathematics, Academia Sinica and the University of Science and Technology of China. lt took place between August Ist and 7th of 1988 on the campus of Tsing Hua University, and some 150 mathematicians were pres- ent. The symposium was carried out in two separate sections: number theory and analysis. This is retlected in the publication ofa set oftwo volumes, the first one on Number Theory edited by Professor Wang Yuan and the second on Analysis by Professors Gong Sheng, Lu Qi-keng and Yang Lo. The distinguished list of main speakers and the contents of these two vol- umes reflect the high level of the mathematical activity throughout the seven days. W e pay special tribute to our main speakers professors Chuang, Conn, Ding, Drasin, Fitzgerald, Gaier, Gong, Grauert, Gu, Hejhal, Iyanaga, Karatsuba, Koranyi, Liao, Lu, Pan, Richert, Satake, Schmidt, Siu, Tatuzawa, Tsang, Vladimirov, Y. Wang, G. Y.Wang, Wustholz and Yang, who gave the excellent one hour lectures, and also to the participants who gave contributed talks on their own research work. The discussions among the mathematicians were always in a warm atmosphere. Our thanks go to professors Chern, Subbarao and Yau for their contributions to these proceedings.

The studies in this dissertation aim at advancing our scientific understandings about physical processes involved in the aerosol-cloud-precipitation interaction and quantitatively assessing the impacts of aerosols on the cloud systems with diverse scales over the globe on the basis of the observational data analysis and various modeling studies. As recognized in the Fifth Assessment Report by the Inter-government Panel on Climate Change, the magnitude of radiative forcing by atmospheric aerosols is highly uncertain, representing the largest uncertainty in projections of future climate by anthropogenic activities. By using a newly implemented cloud microphysical scheme in the cloud-resolving model, the thesis assesses aerosol-cloud interaction for distinct weather systems, ranging from individual cumulus to mesoscale convective systems. This thesis also introduces a novel hierarchical modeling approach that solves a long outstanding mismatch between simulations by regional weather models and global climate models in the climate modeling community. More importantly, the thesis provides key scientific solutions to several challenging questions in climate science, including the global impacts of the Asian pollution. As scientists wrestle with the complexities of climate change in response to varied anthropogenic forcing, perhaps no problem is more challenging than the understanding of the impacts of atmospheric aerosols from air pollution on clouds and the global circulation.

The studies in this dissertation aim at advancing our scientific understandings about physical processes involved in the aerosol-cloud-precipitation interaction and quantitatively assessing the impacts of aerosols on the cloud systems with diverse scales over the globe on the basis of the observational data analysis and various modeling studies. As recognized in the Fifth Assessment Report by the Inter-government Panel on Climate Change, the magnitude of radiative forcing by atmospheric aerosols is highly uncertain, representing the largest uncertainty in projections of future climate by anthropogenic activities. By using a newly implemented cloud microphysical scheme in the cloud-resolving model, the thesis assesses aerosol-cloud interaction for distinct weather systems, ranging from individual cumulus to mesoscale convective systems. This thesis also introduces a novel hierarchical modeling approach that solves a long outstanding mismatch between simulations by regional weather models and global climate models in the climate modeling community. More importantly, the thesis provides key scientific solutions to several challenging questions in climate science, including the global impacts of the Asian pollution. As scientists wrestle with the complexities of climate change in response to varied anthropogenic forcing, perhaps no problem is more challenging than the understanding of the impacts of atmospheric aerosols from air pollution on clouds and the global circulation.

This book focuses on the study of chemical dust suppression in mine dust pollution control by means of theories, experiments, computer simulation, and case application, aiming at providing chemical dust suppression solutions for mining worksites.

This book focuses on the study of chemical dust suppression in mine dust pollution control by means of theories, experiments, computer simulation, and case application, aiming at providing chemical dust suppression solutions for mining worksites.

This book is an autobiographical interview with Chinese Academician Yuan Wang on his experience in mathematical research.

This book is an autobiographical interview with Chinese Academician Yuan Wang on his experience in mathematical research.

This book provides a detailed description of a most important unsolved mathematical problem — the Goldbach conjecture. Raised in 1742 in a letter from Goldbach to Euler, this conjecture attracted the attention of many mathematical geniuses. Several great achievements were made, but only until the 1920's. The book gives an exposition of these results and their impact on mathematics, particularly, number theory. It also presents (partly or wholly) selections from important literature, so that readers can get a full picture of the conjecture.

This volume presents a comprehensive collection of Wang Yuan's original important papers which are not available elsewhere, since the majority of the papers were published in China.Covering both pure number theory and applied mathematics, this book is important for understanding Wang Yuan's academic career and also the development of Chinese mathematics in recent years, since Wang Yuan's work has a wide-ranging influence in China.Wang Yuan is a professor and academician of the Chinese Academy of Sciences. He received his honorable Doctorship from Hong Kong Baptist University. He has published 70 papers and ten books.

These book consists of two parts:(i) A detailed introduction by the editor to provide a full exposition on the developments of the study of Goldbach conjecture, including a complete reference.(ii) A collection of original papers on Goldbach Conjecture and is intended for graduate students and researchers in analytic number theory who have an understanding of basic elementary number theory and the theory of the distribution of prime numbers. The basic methods for treating Goldbach Conjecture are the circle method of Hardy and Littlewood and the sieve method of Brun. This book contains papers with originalities and important progresses on these two methods and all the papers in Chinese, French, German and Russian have been translated into English.