Kaushik Banerjee

Indias biopesticide industry has experienced remarkable growth in recent times, including increased demand and consumption. By 2040 to 2050, the biopesticide industry is expected to either match or surpass that of chemical pesticides. This growth is attributed to the anticipated increase in global population to 9 billion by 2050 and the subsequent need to increase food production by 70% of current levels to feed this population. However, there is a pressing need to adopt Integrated Pest Management (IPM) practices that involve the judicious use of inorganic inputs in combination with environmentally friendly methods such as microbial biopesticides. This approach can help enhance food production to meet the anticipated demand while minimizing the negative impact on the environment.

This book addresses the acoustic signal analysis and spectral dynamics of the tanpura, an Indian plucked string instrument. In addition, it strives to provide a logical and objective explanation of Indian classical musicians’ cognitive experience. Issues of relevance in this regard include the rich, mellifluous sound; the undulation of the loudness; the somewhat cyclical variation of the timbre, which is strongly related to these undulations; and the occasional perception of virtual notes to which no strings are tuned. The book analyses the materials used in the tanpura, the instrument’s simple structure, the intricacies of the lower bridge, and the theory of string vibration with variable string length. Cognitive experiments to provide the basis for perceptual quality assessment, as well as a methodology for ranking, are described. This is followed by acoustic analyses, both temporal and spectral, for sounds produced by male and female tanpuras, for each individual string and the combined one. An important aspect related to the naturalness of perceived sound, namely the intrinsically associated random perturbations, is also discussed. The apparent irregularities perceived in the acoustic signal produced by the tanpura reveal the importance of examining the signal from the perspective of non-linear analysis, an aspect that is also covered in the book. Given its scope, the book will appeal to students and researchers in the fields of music acoustics, artificial intelligence, and cognitive science, as well as musicians and musicologists around the world.

This book addresses the acoustic signal analysis and spectral dynamics of the tanpura, an Indian plucked string instrument. In addition, it strives to provide a logical and objective explanation of Indian classical musicians’ cognitive experience. Issues of relevance in this regard include the rich, mellifluous sound; the undulation of the loudness; the somewhat cyclical variation of the timbre, which is strongly related to these undulations; and the occasional perception of virtual notes to which no strings are tuned. The book analyses the materials used in the tanpura, the instrument’s simple structure, the intricacies of the lower bridge, and the theory of string vibration with variable string length. Cognitive experiments to provide the basis for perceptual quality assessment, as well as a methodology for ranking, are described. This is followed by acoustic analyses, both temporal and spectral, for sounds produced by male and female tanpuras, for each individual string and the combined one. An important aspect related to the naturalness of perceived sound, namely the intrinsically associated random perturbations, is also discussed. The apparent irregularities perceived in the acoustic signal produced by the tanpura reveal the importance of examining the signal from the perspective of non-linear analysis, an aspect that is also covered in the book. Given its scope, the book will appeal to students and researchers in the fields of music acoustics, artificial intelligence, and cognitive science, as well as musicians and musicologists around the world.

Economics for Business Environment explores the fundamental economic principles and their impact on the business landscape. This book examines key economic concepts such as market dynamics, demand and supply, inflation, fiscal policies, and globalization, providing insights into how these factors shape business strategies. It emphasizes the significance of understanding economic indicators for making informed business decisions. With case studies and real-world examples, the book illustrates the interplay between economics and corporate success. Tailored for students and professionals, it bridges theoretical concepts with practical applications, making it a comprehensive resource for understanding the economic forces influencing today's business environment.