Bücher von Ravinder Kumar

This book highlights the multifunctional role of the ubiquitous molecule, melatonin, in crop plants. The major focus of this edition is to provide detailed insights into morphophysiological, biochemical, and molecular responses of melatonin in the growth and development of the plant. The inception of melatonin as an animal hormone and the subsequent discovery of its multifaceted function in the animal system has triggered the research on this pineal gland hormone. During the last decade, the discovery, quantification and functional studies of melatonin as phytohormone has emerged at a rapid pace. Recently, this phyto-protectant has become an integral component of lab and field-based research on the mitigation of adverse effects of climate-driven abiotic stresses and postharvest biology and technology.The book explores various biosynthetic pathways and detection of melatonin covering its role in flowering, fruit development, photosynthesis, respiration, hormonal crosstalk, post-harvest biology and reactive oxygen species and nitrogen cycles. This book is of high interest to postharvest industries, horticulturists, scientists, researchers, and students.

This edited book highlights the multifunctional role of the ubiquitous molecule, melatonin in crop plants. The major focus of this edition is to provide a comprehensive insight into the key focus is on Melatonin mediated alleviation of abiotic stresses and pathogens infection. The inception of melatonin as an animal hormone and the subsequent discovery of its multifaceted function in the animal system has revolutionized the research on this penial hormone. During the last decade, the discovery, quantification and functional studies of melatonin as phytohormone has emerged at a rapid pace. Recently, this phyto-protectant has become an integral component of lab and field-based research on the mitigation of adverse effects of climate-driven abiotic stresses and postharvest biology and technology.The book explores melatonin mediated management of various abiotic stresses such as drought, salinity, heat and cold temperature. The book also focuses on role of melatonin in heavy metal stress, viral, bacterial, and fungal diseases, and, also contains chapter on melatonin facilitated nutrient use efficiency in plants. This book is of interest to postharvest industries, horticulturists, scientists, researchers, and students.

There are billions of web pages available on the World Wide Web (WWW). So there are lots of search results corresponding to a user¿s query out of which only some are relevant. The relevancy of a web page is calculated by search engines using page ranking algorithms. Most of the page ranking algorithm use web structure mining and web content mining to calculate the relevancy of a web page. In this thesis, we provide an extension to standard Weighted PageRank algorithm by combining web structure mining with web usage mining. The proposed method takes into account the importance of both the number of visits of inlinks and outlinks of the pages and distributes rank scores based on the popularity of the pages. So, the resultant pages are displayed on the basis of user browsing behavior.

In view of expressing the coal-fired power plant in ¿up-time¿ in quantitative terms, a steady state operational availability analysis needs to be developed. For simplicity, the entire thermal system is broken down into four subsystems. These subsystems are further subdivided into a number of units. Formulation of operational availability of each subsystem, a well known Markov birth-death process has been employed. Finally, the overall availability index of coal-fired power plant has been evaluated by integrating all subsystems as a whole. Also, a semi-empirical module has been developed to predict thermal performance of coal-fired power plant. It includes the mass balance, energy balance, and thermodynamic property relations for working substance followed by empirical correlations for steam bled pressure. For the assessment of the economic effectiveness of the investments, widely used net present value method has been employed. After validation, a simulated annealing technique for optimization has been used for maximization of profit in terms of net present value (NPV) of complex coal-fired power plant.

Agricultural Economics plays a very important role in analysing any agro based enterprises using economic principles.This book presents a detailed comparative economic analysis of Direct seeded rice technology vs. traditional transplanting method of rice cultivation in Haryana (India).Rice being a staple food of more than half population of world is grown mainy by transplanting method in Haryana and India also . Traditional method is very labour and water consuming method. This study, by using primary data, analyse how much water and labour efficient the Direct seeded rice (DSR) technology is as compared to trans-planted rice (TPR) method.The study shows that net return in DSR technology is higher as compare to transplanted method.The subject matter has been presented in simple language ans is supported with latest data.This book will be helpful for not only policy makers and farmers but also for research workers for further research in this direction.

This text analyses the social changes which took place in the Maharashtra in the 19th century, by focusing on the rise of new social groups and the dissemination of new values and showing how these groups and values interacted with the traditional order to create a stable regional society.