Bøger af Nelson Bolivar

This book explains various key concepts and terms that are important in the context of physics. Physics is the branch of science that deals with the structure of matter and how the fundamental constituents of the universe interact. It studies objects ranging from the very small using quantum mechanics to the entire universe using general relativity.

This book is mainly intended for undergraduate students of materials engineering and electrical engineering. However, the book is also beneficial for graduate students from various multidisciplinary areas including chemistry, physics, materials engineering, electrical engineering, chemical engineering, mechanical engineering, biology and, and bioengineering. Researchers and scientists in the area of nanoscience and nanotechnology can also use the book for constructing the background essential to comprehend the fundamentals of nanomaterials. The world is rapidly moving towards technological evolution since the start of 21st century. Nanotechnology is revolutionizing the world due to its unique and extraordinary applications in almost every area of human activity. The advent of nanotechnology has resulted in the shrinkage of chips and electrical circuits from giant structures to the size of our finger nails. We can store data up to 1 tera-byte in a storage device. The smart watches are performing the tasks as a mini-computer. On the other hand, the development of smart-phone technology has completely revolutionized the world. The applications of nanotechnology in medicine and medical devices have resulted in efficient disease detection and higher cure rates. The use of nanomaterials in electronic sensors and solar cells is also getting great attention now-a-days. There are numerous other applications of nanomaterials in various sectors of materials development which are paving a way towards a nano-age. This introductory book on nanomaterials particularly addresses the necessities of engineers and scientists who require the basic knowledge about nanoscience and nanotechnology, without indulging into the minor scientific details.

Graphene is considered to be the pioneer two-dimensional material with an immense potential of research and industrial growth. It constitutes the foundation for novel electronic applications of nanomaterials. Successful segregation of single-layered graphene has instigated a lot of curiosity in unraveling the prospects of its use in synthesis of various electronic and electrical devices, predominantly because of its remarkable electronic characteristics. This book primarily focuses on practical uses of graphene determined by its unique characteristics. The mechanisms of thermal and electric transport in graphene, quantum dots, interface phenomena, non-equilibrium states, dissipation, and scattering are thoroughly discussed in the book. Detailed evaluations and comparisons between theoretical and experimental aspects of graphene based materials are illustrated with a range of practical examples. This book also emphases on carbon based nanomaterials (graphene) as novel materials for applications in modern electrical and electronic devices. The growth and applications of novel graphene technology are also discussed in the book. As new materials and new devices, nano-graphene materials are estimated to be pioneer materials that would surpass the conventional materials in terms of performance as well as cost. This book familiarizes the audience with latest accomplishments of graphene devices, and technological growth. The book is mainly focused at a broad range of audiences ranging from undergraduate students and doctoral fellows to industrial engineers and researchers. However, this book can be used specifically by materials scientists, chemists and physicists to expand their knowledge about synthesis, characterization and applications of graphene based materials.

Deep-learning and machine-learning have gained a significant importance in the last few years. New inventions and discoveries are taking place every day to exploit the concepts of machine-learning technique. The aim of this book is to present the fundamentals of machine-learning with an emphasis on deep-learning, neural networks and physical aspects of machine learning.Design of materials and molecules with desired features is an essential prerequisite for progressing technology in our contemporary societies. This necessitates both the capability to compute precise microscopic characteristics, such as forces, energies and efficient selection of potential energy faces, to attain corresponding macroscopic features. Tools required to achieve the above mentioned goals can be extracted from quantum mechanics, statistical mechanics, and classical physics, respectively. To overcome the challenge of technology integration, significant efforts are being made to speed up quantum physical simulations with the help of machine learning. This evolving interdisciplinary community consists of material scientists, chemists, physicists, computer scientists and mathematicians, coming together to contribute to the exciting field of machine learning and artificial intelligence.This book can be used as a reference material for acquiring fundamentals of machine learning from a physicists perspective. Moreover, people from all backgrounds can benefit from this introductory book on Machine Learning.

The book addresses fundamental conceptions in quantum mechanics. Its point of view goes from the classical to the quantum and back, taking the reader into a constant reviewing of the formulations, interpretations, and common misinterpretations in quantum physics. It has a good emphasis in the experimental grounds of the origins of quantum physics. The ontological and epistemological discussion related to quantum mechanics interpretations follow some of the recent approaches, giving a fresh review of the current state in the field.

Offers a thorough understanding of basic physical laws and concepts. The book covers the most important fundamental aspects of classical as well as quantum physics. A vast variety of topics are discussed, including Newton's laws of motion, mechanics, statistical mechanics, waves, and thermodynamics.