Sandeep Singh

Die Modellierung und Optimierung von Bearbeitungsparametern sind unverzichtbare Elemente in modernen Zerspanungsprozessen. Die vorliegende Studie untersucht die Wechselwirkung von Eingabeparametern f r Bohrvorg nge wie Spindeldrehzahl, Vorschubgeschwindigkeit und Anzahl der Bohrungen sowie deren Einfluss auf die Oberfl chenrauheit, den Durchmesser und die Position der Bohrungen, die beim Bohren von Weichstahl (MS) erzielt werden. Es wurden Kontur- und Oberfl chendiagramme erstellt, um die Wechselwirkung der Prozessparameter sowie deren Auswirkungen auf die Reaktionen hervorzuheben. Mit Hilfe der Response-Surface-Methodik (RSM) wurde ein empirisches Modell f r Oberfl chenrauheit, Durchmesser und Position der Bohrung entwickelt. Die angepassten Modellwerte und die gemessenen Werte lagen sehr nahe beieinander, was darauf hindeutet, dass die entwickelten Modelle effektiv zur Vorhersage der jeweiligen Reaktion verwendet werden k nnen. Die Prozessparameter werden mit Hilfe der auf Desirability basierenden Response-Surface-Methodik optimiert.

La modellazione e l'ottimizzazione dei parametri di lavorazione sono elementi indispensabili nei moderni processi di taglio dei metalli. Il presente studio realizza l'interazione dei parametri di processo di foratura, quali la velocit del mandrino, la velocit di avanzamento e il numero di fori, e la loro influenza sulla rugosit superficiale, sul diametro e sulla posizione del foro ottenuto nella foratura dell'acciaio dolce (MS). Sono stati generati grafici di contorno e grafici di superficie per evidenziare l'interazione dei parametri di processo e il loro effetto sulle risposte. stato sviluppato un modello empirico di rugosit superficiale, diametro e posizione del foro utilizzando la metodologia della superficie di risposta (RSM). I valori adattati e misurati dal modello erano molto simili, il che indica che i modelli sviluppati possono essere utilizzati efficacemente per prevedere la rispettiva risposta. I parametri di processo sono ottimizzati utilizzando un approccio basato sulla desiderabilit della metodologia della superficie di risposta.

La mod lisation et l'optimisation des param tres d'usinage sont des l ments indispensables dans les processus modernes d'usinage des m taux. La pr sente tude examine l'interaction entre les param tres d'entr e du processus de per age, tels que la vitesse de rotation de la broche, la vitesse d'avance et le nombre de trous, et leur influence sur la rugosit de surface, le diam tre et la position des trous obtenus lors du per age de l'acier doux (MS). Des graphiques de contour et de surface ont t g n r s afin de mettre en vidence l'interaction des param tres du processus ainsi que leur effet sur les r ponses. Un mod le empirique de la rugosit de surface, du diam tre et de la position du trou a t d velopp l'aide de la m thodologie de surface de r ponse (RSM). Les valeurs ajust es et mesur es du mod le taient tr s proches, ce qui indique que les mod les d velopp s peuvent tre utilis s efficacement pour pr dire la r ponse respective. Les param tres du processus sont optimis s l'aide d'une m thodologie de surface de r ponse bas e sur la d sirabilit .

This book provides an accurate evaluation of re-integration of Eurasia in the context of India’s energy security and diplomacy which requires a normative shift as in the current Eurasian geopolitical and geo-economic matrix, the growing role of transit countries and their proximity with the Energy Complex Zone negates the fact that great powers or strong states control the Eurasian Heartland. Authors believe that wrecking this norm is fundamental here to deconstruct the undercurrents of energy geopolitics prevailing in Eurasia over the emerging phenomenon, as it discourages the re-integration of the Eurasian region. It explores how the geopolitical struggle between major powers for energy resources has been engendering mutual interdependencies between energy producers and transit countries. It makes an attempt to provide a transcontinental study of Eurasian energy and connectivity as a thrust area for the present work positioning Eurasia in Indian foreign policy, determiningthe contours of energy diplomacy in connection with the Eurasian energy policy. It defines Eurasia broadly as the region that encompasses Central Asia and the Caucasus including Russia and transit countries. It addresses the geopolitical and geo-economic aspects of Eurasian re-integration in the context of India’s energy security. The objective of this book is to combine theoretical, contemporary, and policy-oriented issues that deserve scholarly attention and would both complement and supplement the academic contributions.

O objetivo desta investiga o estudar os par metros de influ ncia que afectam as propriedades mec nicas (resist ncia tra o e microdureza) e as propriedades microestruturais do a o inoxid vel austen tico (AISI 304L e AISI 310) com soldadura por arco de metal a g s (GMAW). A pesquisa foi realizada aplicando os diferentes valores de velocidade e corrente do fio para o experimento, que t m os seguintes par metros interessados: corrente de soldagem em (180, 250 e 320) Amps, velocidades do fio de soldagem em (2, 3 e 5) m / min, g s de prote o CO₂ puro e constante de tens o de soldagem (24 V). O estudo deste trabalho centra-se na an lise mec nica e tica.

Ziel dieser Untersuchung ist es, den Einfluss der Parameter auf die mechanischen Eigenschaften (Zugfestigkeit und Mikroh rte) und die mikrostrukturellen Eigenschaften von austenitischem Edelstahl (AISI 304L und AISI 310) beim Metall-Lichtbogenschwei en (GMAW) zu untersuchen. Die Untersuchung wurde durchgef hrt, indem verschiedene Werte der Drahtgeschwindigkeit und des Stroms f r das Experiment verwendet wurden, die folgende interessierende Parameter haben: Schwei strom bei (180, 250 & 320) Ampere, Schwei drahtgeschwindigkeiten bei (2, 3 & 5) m/min, reines Schutzgas CO₂ und konstante Schwei spannung (24 V). Die Studie dieser Arbeit konzentriert sich auf die mechanische und optische Analyse.

L'obiettivo di questa ricerca studiare l'influenza dei parametri che influenzano le propriet meccaniche (resistenza alla trazione e microdurezza) e microstrutturali dell'acciaio inossidabile austenitico (AISI 304L e AISI 310) con la saldatura ad arco di metallo gassoso (GMAW). La ricerca stata condotta applicando diversi valori di velocit del filo e di corrente per l'esperimento, con i seguenti parametri interessati: corrente di saldatura a (180, 250 e 320) Amp, velocit del filo di saldatura a (2, 3 e 5) m/min, gas di protezione puro CO₂ e tensione di saldatura costante (24 V). Lo studio di questo lavoro incentrato sull'analisi meccanica e ottica.

L'objectif de cette recherche est d' tudier les param tres influen ant les propri t s m caniques (r sistance la traction et micro-duret ) et les propri t s micro-structurelles de l'acier inoxydable aust nitique (AISI 304L et AISI 310) avec le soudage l'arc sous gaz (GMAW). La recherche a t effectu e en appliquant les diff rentes valeurs de vitesse de fil et de courant pour l'exp rience, qui ont les param tres suivants: courant de soudage (180, 250 & 320) Amps, vitesses de fil de soudage (2, 3 & 5) m/min, gaz de protection pur CO₂ et tension de soudage constante (24 V). L' tude de ce travail est ax e sur l'analyse m canique et optique.

This book provides an accurate evaluation of re-integration of Eurasia in the context of India’s energy security and diplomacy which requires a normative shift as in the current Eurasian geopolitical and geo-economic matrix, the growing role of transit countries and their proximity with the Energy Complex Zone negates the fact that great powers or strong states control the Eurasian Heartland. Authors believe that wrecking this norm is fundamental here to deconstruct the undercurrents of energy geopolitics prevailing in Eurasia over the emerging phenomenon, as it discourages the re-integration of the Eurasian region. It explores how the geopolitical struggle between major powers for energy resources has been engendering mutual interdependencies between energy producers and transit countries. It makes an attempt to provide a transcontinental study of Eurasian energy and connectivity as a thrust area for the present work positioning Eurasia in Indian foreign policy, determiningthe contours of energy diplomacy in connection with the Eurasian energy policy. It defines Eurasia broadly as the region that encompasses Central Asia and the Caucasus including Russia and transit countries. It addresses the geopolitical and geo-economic aspects of Eurasian re-integration in the context of India’s energy security. The objective of this book is to combine theoretical, contemporary, and policy-oriented issues that deserve scholarly attention and would both complement and supplement the academic contributions.

This book deals with how procrastination in decision making by the individuals in their financial matters impact achieving their financial goals. Everyone wants financial wellness in their life but procrastination is a major hurdle in achieving sound financial wellbeing. Procrastination in financial affairs is not only detrimental for the individuals' financial health but also affect their physical and mental health. This book is organized in seven chapters. First chapter deals with the concept of procrastination, some areas, its history, theories of procrastination and its models. Second chapter is in relation to the prior studies done in the areas procrastination in general and more specifically in the areas of personal finance. Third chapter is about the research methodology based on which study has been completed. In the fourth chapter determinants of financial procrastination has been studied and explored. In the fifth chapter level of financial procrastination has been examined based on different characteristics of the respondents. Sixth chapter deals with the negative consequences of the procrastination. Final, chapter is about the findings conclusions and recommendations.

Gjennom nærmere femti år samlet musikkritikeren Randi Hultin flere av jazzhistoriens berømtheter, som John Coltrane, Sonny Rollins og Count Basie, hjemme hos seg for jam og sosialt lag. Dette dokumenterte hun gjennom et stort antall bilder, og denne boka viser et utvalg blinkskudd fra en enestående fotosamling og et fascinerende liv. Sandeep Singh har skrevet bokas forord.