Bøker av R. Saravanan

Mobile phones are revolutionised the communication process and becoming all-in-one magical device for anytime and anywhere communication. The last decade has seen a flourish in the number of mobile based agro-advisory service initiatives in the developing countries and more are added regularly in some part of the world. Services that started with farmers help-lines accessed through landlines and messages (SMS) have evolved slowly to multimodal and multimedia based delivery of advisory and to m-agriculture applications for smartphones. In this rapidly changing m-Agriculture scenario, this book is an attempt to document the evolution of mobile phone based agro-advisory services around the world. The content of the book comprises of country s on mobile phone applications for agricultural extension from Asia, Africa, Latin America and Europe along with s on global review on m-agriculture initiatives, content generation process and socio-economic impact of mobile phone based agro-advisory services. This book delves into the development of mobile phone based agro-advisory and their content, delivery mode, business model and utility and provides an insight into the evolution of mobile phones as an extension tool in different countries across the globe. The book will provide valuable insights on m-agriculture initiatives for agricultural extension around the world to agricultural students, extension professionals, researchers and policy makers across the globe both for understanding them and working on them. The lessons from the m-agriculture initiatives can guide the mode of implementation and evolution of mobile based advisory services in agriculture.

The articles included in this book focuses on; Digital divide in rural India, e-Agriculture issues, Cyber extension, overview on Village Knowledge Centres (VKCs), Community Information Centre iniative in Orissa, SATCOM application in Karnataka State, Model e-Villages in Arunachal Pradesh State of North-East India, Nationwide InDG web portal initiative for rural development, Kisan Mobile Sandesh (KMS), Dynamic Market Information (DMI) by Web and Mobile in Tamil Nadu, Expert systems for pest and diseases diagnosis in rubber, Interactive Multimedia Compact Disc (IMCD), Village Information Centres among Dairy Farmers in Tamil Nadu, KISSAN initiative of Kerala State, Mobile Agricultural School and Services (MASS) in Jharkhand, Farmers Database creation in Darjeeling District of West Bengal, Village Resource Centres (VRCs) in Uttaranchal, Pest Surveillance of Rice using satellite data, Techmode Approach for Distance Learning Courses for Field Veterinarians in Maharastra, Information Retrieval System for Buffalo Reproduction, Web Portals and Digital Data base in Agroforestry, Watershed Modelling using GIS and Remote Sensing in Gujarat State, e-Readiness and Participation Level of Akshya and KISSAN Kerala Beneficiaries and VRC & CIC Network in Assam and Internet utilization pattern, evaluation of Kissan Call Centres (KCCs), ICT adoption level, impact, stakeholders feedback, policy implications and recommendations.

This book is an attempt to document the National Policy on ICTs in agricultural extension, ICT infrastructure scenario and related issues, case studies on innovative ICTs for agricultural extension initiatives (Village knowledge centres, information kiosks, mobile ICT units, web portals, digital data base and networks, rural tele centres, farmer call centres, mobile telephony, video conference, offline multimedia CDs, decision support systems, expert systems, innovative community radio and television programmes, open distance learning etc. The agricultural extension students, academicians, scientists, practitioners, administrators and policy makers will find this compilation of the "ICTs for Agricultural Extension: Global Experiments, Innovations and Experiences" from twenty eight countries relevant to providing a framework for the design and implementation of sustainable ICT-enabled extension services for the agricultural development.

The magnetoelectric properties of multiferroic materials have a high potential for applications in the fields of data storage, spin valves, spintronics, memories, sensors and microelectronic devices. The book presents both a detailed literature review of the field, and the experimental results obtained from various characterization and analytical techniques performed on four series of lanthanum orthoferrite type multiferroics. These materials have been used in solid oxide fuel cells (SOFC), magneto-hydrodynamic power generation (MHD), capacitors and energy storage devices in microelectronics, non-volatile magnetic memory devices and ferroelectric random access memories (Fe-RAM).Keywords: Multiferroics, Lanthanum Orthoferrites, Ferromagnetism, Ferroelectricity, Electrical Conductivity, Thermal Stability, Dielectric Constant, Solid Oxide Fuel Cell (SOFC), Magneto-Hydrodynamic Power Generation (MHD), Capacitors, Energy Storage Devices, Magnetic Memory Devices, Ferroelectric Random Access Memories (Fe-RAM), Charge Density Measurements.

The book presents new research on the synthesis and characterization of various oxide based dilute magnetic spintronics materials (ODMS). The characterization techniques included powder X-ray diffraction, scanning electron microscopy, vibrating sample magnetometry and UV visible spectrometry. The morphological, magnetic and optical properties are reported. Electron density distribution studies are presented in the form of three, two and one dimensional electron density maps.Keywords: Spintronics Materials, Zn1-xTixO, Zn1-xFexO, Zn1-xVxO, Zn1-xNix/2Vx/2O, Synthesis, X-ray Diffraction. Rietveld Analysis, Surface Morphological Properties, Optical Properties, Magnetic Properties, Charge Density Analysis, Electron Density Distribution.

Magneto-electric ceramic composites are important materials for designing new microwave sensors (e.g. field probes) and devices such as filters, attenuators, capacitive resonators, gyrators and devices for medical applications. The book presents new research results for the following composite systems: (1-x) BaTiO3 + x NiFe2O4 II (1-x); BaTiO3 + x ZnFe2O4; (1-x) BaTiO3 + x CoFe2O4 and (1-x) BaTiO3 + x MgFe2O4.Keywords: Magneto-Electric Composites, Powder X-ray diffraction (PXRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy (EDS), UV-Visible Spectrophotometry (UV-Vis), Electrical (Dielectric and P-E) Characterization, Magnetic Characterization (M-H), Structural Parameters, Morphological Studies, Elementary Analysis, Optical Studies, Electrical Studies, Magnetic Studies, Charge Density Analysis.

Mobile phones are revolutionised the communication process and becoming all-in-one magical device for anytime and anywhere communication. The last decade has seen a flourish in the number of mobile based agro-advisory service initiatives in the developing countries and more are added regularly in some part of the world. Services that started with farmers help-lines accessed through landlines and messages (SMS) have evolved slowly to multimodal and multimedia based delivery of advisory and to m-agriculture applications for smartphones. In this rapidly changing m-Agriculture scenario, this book is an attempt to document the evolution of mobile phone based agro-advisory services around the world. The content of the book comprises of country chapters on mobile phone applications for agricultural extension from Asia, Africa, Latin America and Europe along with chapters on global review on m-agriculture initiatives, content generation process and socio-economic impact of mobile phone based agro-advisory services. This book delves into the development of mobile phone based agro-advisory and their content, delivery mode, business model and utility and provides an insight into the evolution of mobile phones as an extension tool in different countries across the globe. The book will provide valuable insights on m-agriculture initiatives for agricultural extension around the world to agricultural students, extension professionals, researchers and policy makers across the globe both for understanding them and working on them. The lessons from the m-agriculture initiatives can guide the mode of implementation and evolution of mobile based advisory services in agriculture.

This book is an attempt to document the National Policy on ICTs in agricultural extension, ICT infrastructure scenario and related issues, case studies on innovative ICTs for agricultural extension initiatives (Village knowledge centres, information kiosks, mobile ICT units, web portals, digital data base and networks, rural tele centres, farmer call centres, mobile telephony, video conference, offline multimedia CDs, decision support systems, expert systems, innovative community radio and television programmes, open distance learning etc. The agricultural extension students, academicians, scientists, practitioners, administrators and policy makers will find this compilation of the "ICTs for Agricultural Extension: Global Experiments, Innovations and Experiences" from twenty eight countries relevant to providing a framework for the design and implementation of sustainable ICT-enabled extension services for the agricultural development.

Agricultural extension is in a great transition worldwide. The demand for public extension reform is greater than ever before. The agriculture knowledge infrastructure is evolving in a big way with the emergence of pluralistic extension actors and innovations to cater the needs of the farmeThis book is an attempt to document the past experiences and recent developments in the agriculture knowledge information systems. The compilation of 14 country s such as; Afghanistan, Benin, Cote d'Ivoire, Ghana, India, Iran, Mozambique, Nepal, Peru, Philippines, Trinidad and Tobago and Zimbabwe is intended to document the experience of extension systems. The fourteen country s highlight the worldwide agricultural extension reform measures (Decentralization, Privatization, Demand driven and Cost-recovery approaches), Institutional Pluralism (Public, Private, and NGOs) and Innovations (Farmer to Farmer extension, Participatory and Self-Help Group (SHG) approaches and ICT initiatives). The agricultural extension students, academicians, scientist, practitioners, administrators, and policy makers will find this compilation of extension experiences from the fourteen countries relevant for designing future reforms, advancing pluralistic extension system and also to integrating innovations in their extension approaches.