ac quality control

The first book of its kind, Power Converters and AC Electrical Drives with Linear Neural Networks systematically explores the application of neural networks in the field of power electronics, with particular emphasis on the sensorless control of AC drives. It presents the classical theory based on space-vectors in identification, discusses control of electrical drives and power converters, and examines improvements that can be attained when using linear neural networks.

The book integrates power electronics and electrical drives with artificial neural networks (ANN). Organized into four parts, it first deals with voltage source inverters and their control. It then covers AC electrical drive control, focusing on induction and permanent magnet synchronous motor drives. The third part examines theoretical aspects of linear neural networks, particularly the neural EXIN family. The fourth part highlights original applications in electrical drives and power quality, ranging from neural-based parameter estimation and sensorless control to distributed generation systems from renewable sources and active power filters. Simulation and experimental results are provided to validate the theories.

Written by experts in the field, this state-of-the-art book requires basic knowledge of electrical machines and power electronics, as well as some familiarity with control systems, signal processing, linear algebra, and numerical analysis. Offering multiple paths through the material, the text is suitable for undergraduate and postgraduate students, theoreticians, practicing engineers, and researchers involved in applications of ANNs.

In this book, the author discusses the properties of aloe vera and explains why it is effective in healing. She also explores the ways the plant has been used throughout history by cultures as diverse as the ancient Egyptian and Native American. Gage demystifies the proven curative properties of aloe vera and shows how it can be used to best advantage for a wide variety of problems.

New edition of the popular classic

Citing case studies and current research, Diane Gage presents a balanced view of the many uses of aloe vera. 

• enhancing clinical and administrative functions
• encouraging direct-service workers to become more reflective
• fostering cooperation between social workers and other staff members
• designing earlier, easier, and more effective interventions
• contributing to continuing education for staff members
• improving patient care and satisfaction
  
  The detailed discussions in this book will help you apply these techniques toward improving your own service. Clinical Data-Mining in Practice-Based Research offers fresh and exciting ideas that can be applied in small health-care agencies or giant medical centers. It will become a trusted reference for administrators, social workers, researchers, and educators in the field.
  
  

Asperger Syndrome now affects an estimated 10 million children and adults in the United States. Here, Lawton takes an evenhanded look at AS, its development and symptoms, the biological and potential genetic components, the associated physical complaints, and how natural medicine can help. She includes a history of early treatment and current drug and psychotherapy treatments, and explains how diet, blood sugar, and food sensitivities or allergies can play a role. She also looks at the controversy over vaccinations and explains blood tests that can pinpoint a rationale for herbal and homeopathic treatments. The book includes a chapter specifically addressing what is safe to do on your own and when you should seek the help of a medical practitioner. Resources include a listing of AS traits, books that are reliable sources of information, and authoritative Web sites.

The spotlight on Asperger Syndrome has been widening with recent attention from mainstream media. This neurological condition, often misdiagnosed as Attention Deficit Disorder, Obsessive Compulsive Disorder, or high-functioning autism is increasingly being recognized, and now affects an estimated 10 million children and adults in the United States alone. Unlike autistic individuals, Asperger sufferers have normal or above normal language, intelligence and cognition, and are often seen as brilliant—verbose with formal speech patterns and superior memory—but they have odd interests, unusual reactions to the environment, inflexibility in routines, poor interaction with people, and inability to form age-appropriate relationships. There is no known cure, but as Suzanne Lawton explains in this work, there are approaches that can reduce or remove the symptoms. While traditional medications are the only option for some sufferers, there are those who can benefit from the natural treatments offered by herbal medicine, diet and nutrition, homeopathy, and amino acids. These drug-free approaches also reduce the physical problems common to Asperger suffers, including stomachaches and headaches and irritable bowel syndrome. says Lawton.

Recent FDA warnings regarding the use of psychotropic medications with children (previous treatment has focused on anti-anxiety, anti-depressant, and mood-stabilizing drugs) have fueled the outcry of parents who want to get their children off drugs to avoid the side effects. Here, Lawton takes an evenhanded look at Asperger Syndrome, its development and symptoms, the biological and potential genetic components, the associated physical complaints, and how natural medicine can help. She includes a history of early treatment and current drug and psychotherapy treatments, and explains how diet, blood sugar, and food sensitivities or allergies can play a role. She also looks at the controversy over vaccinations and explains blood tests that can pinpoint a rationale for herbal and homeopathic treatments. Lawton includes a chapter specifically addressing what is safe to do on your own and when you should seek the help of a medical practitioner. Resources include a listing of AS traits, books that are reliable sources of information, and authoritative Web sites.

Available in more than 30 languages, our most popular language CD packs have been newly revised and recorded to meet the needs of today's business or leisure trawler. Completely portable, they include the popular, just revised Berlitz Phrase Book, and a CD recording with native speakers. Featuring more than 400 essential expressions, the audio material explores, reviews, and reinforces the phrases, dialogues, and vocabulary of the Phrase Book, although the audio can be used on its own -- in a car or on the go.

Up-to-date, usage, helpful cultural tips, and mini-dialogues depicting typical travel scenarios make Berlitz CD Packs the ideal choice for learning crucial foreign words and phrases.