Rakesh Kumar

Welcome to the fascinating world of welding, a critical process in the construction and fabrication of everything from household items to skyscrapers. This book is designed to introduce beginners to the basics of welding, covering various methods, equipment, materials, and safety procedures. Whether you're considering a career in welding, tackling a DIY project, or simply looking to expand your knowledge, this book aims to equip you with a solid foundation in welding principles and practices.

Etsitkö jännitystä, uusia näkökulmia tai rentouttavaa lukuelämystä? Tutustu kirjakategorioihimme ja löydä seuraava suosikkikirjasi.

This book encapsulates a long period of history of human progress by highlighting crucial social, economic, and cultural dynamics. It presents recent historiography and new analytical tools used to analyse multi-dimensional themes involved in social formations in different parts of the world. This is a reader-friendly book with simple and lucid language and fulfils the pressing needs of students studying the course on Social Formations and Cultural Patterns of the ancient and medieval world at various universities across the world. The summary, key words, and representative questions at the end of each chapter would assist in revision and a better understanding of the issues dealt with therein. A detailed chapter-end reference would enable and motivate the readers to engage in further studies for a better understanding of the themes. This book will be of interest to students, researchers, and academics in the area of history – ancient and medieval world history, in particular, and anthropology. It will also be an interesting read for general readers interested in knowing about the ancient and medieval world.

This book encapsulates a long period of history of human progress by highlighting crucial social, economic, and cultural dynamics. It presents recent historiography and new analytical tools used to analyse multi-dimensional themes involved in social formations in different parts of the world. This is a reader-friendly book with simple and lucid language and fulfils the pressing needs of students studying the course on Social Formations and Cultural Patterns of the ancient and medieval world at various universities across the world. The summary, key words, and representative questions at the end of each chapter would assist in revision and a better understanding of the issues dealt with therein. A detailed chapter-end reference would enable and motivate the readers to engage in further studies for a better understanding of the themes. This book will be of interest to students, researchers, and academics in the area of history – ancient and medieval world history, in particular, and anthropology. It will also be an interesting read for general readers interested in knowing about the ancient and medieval world.

Das Internet der Dinge (IoT) ist ein trendiges Konzept im Bereich der Computernetzwerke, bei dem verschiedene heterogene Ger te miteinander verbunden werden, um Daten von verschiedenen Sensorknoten zu sammeln. Es handelt sich um ein System, in dem allt gliche Dinge mit eingebetteter Hardware/Ger ten an ein Netzwerk angeschlossen sind oder man kann sagen, dass sie einfach online sind. Die Sensoren sammeln die Informationen aus ihrer Umgebung, verarbeiten sie und leiten die Informationen zur weiteren Verarbeitung an einen entfernten Standort weiter. Im heutigen Szenario findet das IoT berall Anwendung, z. B. in Klassenzimmern, Einkaufszentren, B ros, in der Landwirtschaft, im Einzelhandel, im Multimediabereich, bei der Wettervorhersage, bei der Verkehrs berwachung, im Gesundheitswesen, bei der Bek mpfung der Umweltverschmutzung, in Fahrzeugen und in Wohnungen. Diese breit gef cherte Palette von IoT-Anwendungen zeigt, dass das Internet der Dinge zu einem festen Bestandteil unseres Lebens geworden ist. Sicherheit und Schutz der Privatsph re sind im Bereich der IoT-Netzwerke nach wie vor die gr ten Probleme, da die meisten Ger te in der IoT-Umgebung unverschl sselte Informationen in einer offenen und feindlichen Umgebung bertragen. Diese Arbeit befasst sich haupts chlich mit den verschiedenen Fragen der Sicherheit und des Datenschutzes f r das IoT-Netzwerk.

L'Internet delle cose (IoT) un concetto di tendenza nel campo delle reti informatiche in cui vari dispositivi eterogenei sono collegati tra loro per raccogliere i dati da vari nodi sensore. Si tratta di un sistema in cui gli oggetti di uso quotidiano con hardware/dispositivi incorporati sono collegati a una rete o, pi semplicemente, sono online. I sensori raccolgono le informazioni dall'ambiente circostante, le elaborano e le trasmettono a distanza per un'ulteriore elaborazione. Nello scenario odierno, l'IoT trova applicazione ovunque, ad esempio nelle aule scolastiche, nei centri commerciali, negli uffici, nell'agricoltura, nei negozi, nel settore multimediale, nelle previsioni meteorologiche, nel monitoraggio del traffico, nella sanit , nel controllo dell'inquinamento, nei veicoli e nelle abitazioni. Questa gamma diversificata di applicazioni IoT indica che diventata parte integrante della nostra vita. La sicurezza e la privacy rimangono sempre le principali preoccupazioni nel campo delle reti IoT, poich la maggior parte dei dispositivi nell'ambiente IoT trasmette informazioni non criptate in un ambiente aperto e ostile. Questo lavoro si concentra principalmente sulle varie problematiche di sicurezza e privacy della rete IoT.

L'internet des objets (IdO) est un concept en vogue dans le domaine des r seaux informatiques, dans lequel divers appareils h t rog nes sont connect s les uns aux autres pour collecter des donn es partir de divers noeuds de capteurs. Il s'agit d'un syst me dans lequel les objets de tous les jours dot s de mat riel/appareils int gr s sont connect s un r seau ou, en d'autres termes, sont simplement en ligne. Les capteurs collectent les informations de leur environnement, les traitent et les transmettent un site distant pour un traitement ult rieur. Dans le sc nario actuel, l'IdO trouve son application partout, notamment dans les salles de classe, les centres commerciaux, les bureaux, l'agriculture, la vente au d tail, le multim dia, les pr visions m t orologiques, la surveillance du trafic, les soins de sant , le contr le de la pollution, les v hicules et les habitations. Cette gamme diversifi e d'applications de l'IdO indique qu'elle fait d sormais partie int grante de nos vies. La s curit et la confidentialit restent toujours des pr occupations majeures dans le domaine des r seaux IoT, car la plupart des appareils dans l'environnement IoT transmettent des informations non crypt es dans un environnement ouvert et hostile. Ce travail est principalement ax sur les diff rentes questions relatives la s curit et la confidentialit du r seau IoT.

A Internet das coisas (IoT) um conceito em voga no dom nio das redes inform ticas em que v rios dispositivos heterog neos est o ligados entre si para recolher os dados de v rios n s sensores. Trata-se de um sistema em que os objectos do quotidiano com hardware/dispositivos incorporados est o ligados a uma rede, ou pode dizer-se que est o simplesmente em linha. Os sensores recolhem as informa es do ambiente que os rodeia, processam-nas e enviam-nas para um local distante para serem processadas. No cen rio atual, a IoT encontra a sua aplica o em todo o lado, como em salas de aula, centros comerciais, escrit rios, agricultura, com rcio a retalho, multim dia, previs o meteorol gica, monitoriza o do tr fego, cuidados de sa de, controlo da polui o, ve culos e casas. Esta gama diversificada de aplica es da IdC indica que esta se tornou parte integrante das nossas vidas. A seguran a e a privacidade continuam a ser sempre as principais preocupa es no dom nio da rede IoT, uma vez que a maioria dos dispositivos no ambiente IoT transmite informa es n o encriptadas num ambiente aberto e hostil. Este trabalho centra-se principalmente nas v rias quest es de seguran a e privacidade da rede IoT.