Target RRB/ RRC Group D Level I Exam - 15 Practice Sets & 10 Solved Papers 2nd Edition contains 15 Practice Sets for Indian Railways (RRB) Group D Exam and 10 Solved Papers held in 2018 in 10 sittings. The Practice Sets covers the 4 areas – General Intelligence, General Awareness, Arithmetic and General Science. The solutions to each of the test is provided at the end of the book. The USP of the book is the authenticity of the Past papers. The book also provides Current Affairs MCQs at the end of the Book.

"Neither an academic tome nor a prescriptive 'how to' guide, The Theory and Practice of Online Learning is an illuminating collection of essays by practitioners and scholars active in the complex field of distance education. Distance education has evolved significantly in its 150 years of existence. For most of this time, it was an individual pursuit defined by infrequent postal communication. But recently, three more developmental generations have emerged, supported by television and radio, teleconferencing, and computer conferencing. The early 21st century has produced a fifth generation, based on autonomous agents and intelligent, database-assisted learning, that has been referred to as Web 2.0. The second edition of "The Theory and Practice of Online Learning" features updates in each chapter, plus four new chapters on current distance education issues such as connectivism and social software innovations."--BOOK JACKET.

Based on the popular Artech House classic, Digital Communication Systems Engineering with Software-Defined Radio, this book provides a practical approach to quickly learning the software-defined radio (SDR) concepts needed for work in the field. This up-to-date volume guides readers on how to quickly prototype wireless designs using SDR for real-world testing and experimentation. This book explores advanced wireless communication techniques such as OFDM, LTE, WLA, and hardware targeting. Readers will gain an understanding of the core concepts behind wireless hardware, such as the radio frequency front-end, analog-to-digital and digital-to-analog converters, as well as various processing technologies. Moreover, this volume includes chapters on timing estimation, matched filtering, frame synchronization message decoding, and source coding. The orthogonal frequency division multiplexing is explained and details about HDL code generation and deployment are provided. The book concludes with coverage of the WLAN toolbox with OFDM beacon reception and the LTE toolbox with downlink reception. Multiple case studies are provided throughout the book. Both MATLAB and Simulink source code are included to assist readers with their projects in the field.

This comprehensive book is specially developed for the candidates of Indian RailwayGroup 'D' (Trackman/Traffic Porter/Gateman/Khalasi/Safaiwala/Carriage Cleaner/DSL Cleaner/Hamal/Chowkidar/Station Peon/Cook/Helper/Traffic Khalasi/Trolleyman/Hospital Attendant/Station Porter/Parcel Porter/Scale Porter/Call Boy/Box Boy/Running Room Baira/Watchman/Gang Man/Token Porter etc.) Exam. This book included Study Material and Previous (Solved) Papers for the purpose of practice of questions based on the latest pattern of the examination. Detailed Explanatory Answers have also been provided for the selected questions for Better Understanding of the Candidates.

The General Science section covering Physics, Chemistry, Biology and Computer Science has taken an important dimension in most of the competitive examinations like SSC, CDS, NDA, Assistant Commandant, CPO, UPSC and State Level PSC Exams and those lacking the basic General Science knowledge lag behind others in the long run. The present book will act as an Objective Question Bank for General Science. The book has been prepared keeping in mind the importance of the subject. This book has been divided into four sections namely Physics, Chemistry, Biology and Computer Science, each divided into number of chapters as per the syllabi of General Science section asked in various competitive exams. The Physics section covers Motion, Force & Laws of Motion, Gravitation, Work, Energy & Power, Simple Harmonic Motion, Wave Motion, Light-Ray Optics, Current Electricity & Its Effects, Nuclear Physics, Semiconductor, Communication, etc whereas the Chemistry section has been divided into Atomic Structure, Chemical Reactions, Chemical Bonding, Solutions & Colloids, Energetics & Kinetics, Electrochemistry, Metallurgy, Metals & Their Compounds, Flame & Fuel, Food Chemistry, etc. The Biology section in the book covers Biology & Its Branches, Cell: Structure & Functions, Cell Cycle & Cell Division, Plant Tissues, Animal Nutrition, Plant System, Reproduction in Organisms, Respiratory System, Excretory System, Reproductive System, Genetics, Biotechnology, Animal Husbandry, etc whereas the Computer Awareness section has been divided into Computer Organisation & Memory, Data Representation, Software, Data Communication Networking and Internet & Computer Security. The chapters in the book contain more than 100 tables which will help in better summarization of the important information. Each chapter in the book contains ample number of objective questions ample number of objective questions including questions asked in previous years’ exams which have been designed on the lines of questions asked in various competitive examinations. With a collection of more than 5000 highly useful questions, the content covered in the book tries to simplify the complexities of some of the topics so that non-science students feel no difficulty while studying general science. Also hints and solutions to the difficult questions have been provided in the book. As the book thoroughly covers the General Science section asked in a number of competitive examinations, it for sure will work as a preparation booster for various competitive examinations like UPSC & State Level PSCs Examinations, SSC, CDS, NDA, CISF and other general competitive & recruitment examinations.

Discover how graph databases can help you manage and query highly connected data. With this practical book, you’ll learn how to design and implement a graph database that brings the power of graphs to bear on a broad range of problem domains. Whether you want to speed up your response to user queries or build a database that can adapt as your business evolves, this book shows you how to apply the schema-free graph model to real-world problems. This second edition includes new code samples and diagrams, using the latest Neo4j syntax, as well as information on new functionality. Learn how different organizations are using graph databases to outperform their competitors. With this book’s data modeling, query, and code examples, you’ll quickly be able to implement your own solution. Model data with the Cypher query language and property graph model Learn best practices and common pitfalls when modeling with graphs Plan and implement a graph database solution in test-driven fashion Explore real-world examples to learn how and why organizations use a graph database Understand common patterns and components of graph database architecture Use analytical techniques and algorithms to mine graph database information