Reflow Soldering: Apparatus and Heat Transfer Processes investigates the technology of reflow soldering from the aspect of the soldering ovens and apparatus. The authors begin by introducing the concept of surface mount technology. This is followed by three chapters exploring: Infrared ovens, convection ovens, Vapor Phase Soldering (VPS), and special reflow ovens. Each of these chapters includes a discussion of the physical background, structure and working principle, and characterization of the heating, flow and vapor parameters; and concludes with a review of the application of the techniques and typical solder failures. The book concludes with a discussion of the various numerical simulations of the different ovens. This book will be useful for researchers and process and quality and research and design engineers within the electronics and manufacturing industries. - Provides an overview and comparison of the existing reflow apparatus, heating methods, and working principles - Analyses and compares the different reflow ovens - Discusses useful tools such as characterization and measurement methods and includes numerical case studies to assist in solving soldering problems and improve soldering quality - Introduces Vapor Phase Soldering (VPS) technology
This book describes preparation techniques for well-defined, customizable poly(organo)phosphazene materials and their applications in nanomedicine, i.e. as macromolecular carriers for drug delivery, immunology, gene therapy, or tissue regeneration. This 2nd edition of Polyphosphazenes for Medical Applications has been updated and extended for researchers in the field as well as those considering using polyphosphazenes for a specific application.
With the novice user in mind, this beginner's guide explains thebasics behind microwave technology, evaluates available instrumentsand reaction modes, and provides practical hints for everyeventuality. Includes 27 detailed protocols for often-usedreactions. From the contents: 1 Microwave Synthesis - An Introduction 2 Microwave Theory 3 Equipment Review 4 Microwave Processing Techniques 5 Starting With Microwave Chemistry 6 Experimental Protocols 6.1 General Small-Scale Sealed-Vessel Microwave Processing 6.2 Reaction Optimization 6.3 Library Generation 6.4 Reaction Scale-Up 6.5 Special Processing Techniques
Tailored to the needs of medicinal and natural products chemists, the second edition of this unique handbook brings the contents up to speed, almost doubling the amount of chemical information with an additional volume. As in the predecessor, a short introductory section covers the theoretical background and evaluates currently available instrumentation and equipment. The main part of the book then goes on to systematically survey the complete range of published microwave-assisted synthesis methods from their beginnings in the 1990s to mid-2011, drawing on data from more than 5,000 reports and publications. Throughout, the focus is on those reactions, reagents and reaction conditions that work, and that are the most relevant for medicinal and natural products chemistry. A much expanded section is devoted to combinatorial, highthroughput and flow chemistry methods.
From its emergence out of the ashes of World War II through to the economic and political challenges of today, Austria has embodied many of the contradictions of recent European history. Written by one of the nation’s leading historians, this account of postwar Austria explores the tensions that have defined it for over seven decades, whether in its overlapping policies of engagement and isolationism, its grandiose visions and persistent sense of inferiority, or its position as a model social democracy that has suffered recurrent bouts of xenophobic nationalism. This newly revised edition also addresses the major developments since 2005, including a resurgent far right, economic instability, and the potential fracturing of the European Union.
This book gives insight into the mechanism of the immune system and the influence of the environment on earth. Further, the book explains the changes that occur in our immune system in the absence of gravity and their fundamental consequences. Several limiting factors for human health and performance in microgravity have been clearly identified as an unacceptable risk for long-term and interplanetary flights. Serious concerns arose whether spaceflight-associated immune system dysfunction ultimately precludes the expansion of human presence beyond Earth's orbit. The immune system has undergone many evolutionary steps to cope with a new and changing environment, but `space` has not been evolutionary experienced before. Through endocrine orchestration of cell functions, cell to cell communications and intracellular mechanisms the human body and his immune system have an enormous capacity to adapt and react to altered environmental conditions. Thus, the special sensitivity to altered gravity renders the immune system an ideal biological model system to understand if and how gravity on Earth is required for the normal function of cells and cellular networks. It is one of the most fundamental challenges to find out, if our organism and our cellular machinery are able to live and to adequately perform without the gravity field of Earth. The book is written for immunologists and researchers in human physiology under normal and stressfull conditions.
Oliver Pooth describes the silicon strip tracker of the CMS detector and discusses methods of quality control that are new to the field of particle detector physics. These methods were established to guarantee a uniform behaviour of all detector modules which were built and tested in various places worldwide.
Reflow Soldering: Apparatus and Heat Transfer Processes investigates the technology of reflow soldering from the aspect of the soldering ovens and apparatus. The authors begin by introducing the concept of surface mount technology. This is followed by three chapters exploring: Infrared ovens, convection ovens, Vapor Phase Soldering (VPS), and special reflow ovens. Each of these chapters includes a discussion of the physical background, structure and working principle, and characterization of the heating, flow and vapor parameters; and concludes with a review of the application of the techniques and typical solder failures. The book concludes with a discussion of the various numerical simulations of the different ovens. This book will be useful for researchers and process and quality and research and design engineers within the electronics and manufacturing industries. - Provides an overview and comparison of the existing reflow apparatus, heating methods, and working principles - Analyses and compares the different reflow ovens - Discusses useful tools such as characterization and measurement methods and includes numerical case studies to assist in solving soldering problems and improve soldering quality - Introduces Vapor Phase Soldering (VPS) technology
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