Bøger af Ashok Kumar Sahoo

Sustainable Hard Machining: Implementation and Assessment analyses the various methodologies of cooling and lubrication employed during hard machining operations along with their potential towards sustainable machining. It includes the needs, challenges, and trends towards sustainable hard machining of difficult-to-cut materials through the application of dry, minimum quantity lubrication (MQL), cryogenic and nanofluids assisted MQL towards environmental, economic, ecological, and societal benefits, leading to environmentally cleaner sustainable machining.Features: Provides introduction to hard machining, sustainability, and environmentally conscious machining Discusses dry and minimum quantity lubrication (MQL) based hard machining Includes computational methods and optimization in hard machining Reviews nano-cutting fluids in hard machining Explores cryogenic cooling in hard machining This book is aimed at graduate students and researchers in Mechanical, Manufacturing, and Materials Science.

Sign language is the only medium of communication for hearing-impaired people and hard hearing community. This is also helpful in communication between speaking community and who cannot speak. In India, the sign language is known as Indian Sign Language (or ISL). English and Hindi are officially accepted sign languages in India. The focus of this research is on computer recognition and translation of ISL in English language domain. A sign language recognition system can be based on a device based approach or vision based approach. Due to problems in device based recognition systems, the work presented in this thesis is on vision based computer recognition of ISL. Some pre-processing steps and feature extraction techniques (histogram features, structural features and feature vector inherited directly from an image matrix) in the pattern recognition process for performance improvement are devised. A new pattern recognition process for video data set is proposed and is useful in recognition of dynamic gestures of ISL. The thesis contains six chapters.