Masters Thesis from the year 2013 in the subject Electrotechnology, grade: First Class, , course: Master Of Engineering, language: English, abstract: In todays modern communication industry, antennas are the most important components required to create a communication link. Microstrip antennas are the most suited for aerospace and mobile applications because of their low profile, light weight and low power handling capacity. These antennas can be designed in a variety of shapes in order to obtain enhanced gain and bandwidth for dual band and tri-band operation. This book focus on a detailed study of how to design and simulate a microstrip fed rectangular patch antenna using IE3D software with effect of antenna dimensions length ( L ), width ( W ), relative dielectric constant , substrate thickness (t ) on the radiation parameters of bandwidth and gain. The design parameters of the antenna calculated using the transmission line model. Here antenna operates for tri- band operation, the operating bands are GSM , PCA and UTMS for antenna geometry -I and WLAN and WiMAX for antenna geometry -II. The fractional bandwidths (FB) after simulation obtain under criterion ( S_11 < -10 dB) are 6.45% for GSM [890-960 MHz], 4.25% for WLAN [2.40 - 2.51 GHz], 6.89% for PCA [1850-1990 MHz], 11.42 % for WiMAX [3.35 - 3.94 GHz], 9.09% for UTMS [1920-2170 MHz] and 18.18% for WLAN [5.02 - 6.63 GHz] and peak gain 2.43 dBi at 5.36 GHz.
Rising sea levels, leaking oil rigs, growing garbage patches and overfishing: our oceans are in grave danger. To protect the ecosystem it is important to better understand the relationship between human actions and their effect on marine environments. The Ocean Book provides a comprehensive picture of the threats posed on this mysterious and fascinating habitat, and makes correlations visible and easy to understand with the help of detailed infographics.
Since the time of Galileo, astronomy has been driven by technological innovation. With each major advance has come the opportunity and enthusiasm to survey the sky in a way that was not possible before. It is these surveys of discovery that are the subject of this book. In the first few chapters the author discusses what astronomers learned from visible-light surveys, first with the naked eye, then using telescopes in the seventeenth century, and photography in the nineteenth century. He then moves to the second half of the twentieth century when the skies started to be swept by radio, infrared, ultraviolet, x-ray and gamma ray telescopes, many of which had to be flown in satellites above the Earths atmosphere. These surveys led to the discovery of pulsars, quasars, molecular clouds, protostars, bursters, and black holes. He then returns to Earth to describe several currently active large-scale projects that methodically collect images, photometry and spectra that are then stored in vast publicly-accessible databases. Dr. Wynn-Williams also describes several recent microsurveys - detailed studies of small patches of sky that have led to major advances in our understanding of cosmology and exoplanets. Born in London, Gareth Wynn-Williams received his BA and PhD degrees in physics from the University of Cambridge, specializing in radio astronomy. He then switched wavelength to spend two years doing postdoctoral research with the infrared astronomy group at Caltech. He held a faculty teaching position at the Cavendish Laboratory in Cambridge University for five years before taking up a professorship at the University of Hawaii in 1978, where he remained until he retired in 2012. His research focus throughout his career has been interstellar matter in the Milky Way and in other galaxies.
Example-Based Super Resolution provides a thorough introduction and overview of example-based super resolution, covering the most successful algorithmic approaches and theories behind them with implementation insights. It also describes current challenges and explores future trends. Readers of this book will be able to understand the latest natural image patch statistical models and the performance limits of example-based super resolution algorithms, select the best state-of-the-art algorithmic alternative and tune it for specific use cases, and quickly put into practice implementations of the latest and most successful example-based super-resolution methods. Provides detailed coverage of techniques and implementation details that have been successfully introduced in diverse and demanding real-world applications Covers a wide variety of machine learning approaches, ranging from cross-scale self-similarity concepts and sparse coding, to the latest advances in deep learning Presents a statistical interpretation of the subspace of natural image patches that transcends super resolution and makes it a valuable source for any researcher on image processing or low-level vision Jordi Salvador holds a senior scientist position at Technicolor R&I in Hannover and is member of Technicolors Fellowship Network. His main focus is the research of new algorithms for example-based super resolution and machine learning. Formerly, he received a M.Sc. in Telecommunications (equivalent to Electrical) Engineering in 2006 and a M.Sc. in the European MERIT program in 2008, both from the Universitat Polit`ecnica de Catalunya (UPC) in Barcelona. He obtained the Ph.D. degree in 2011, also from UPC, where he contributed to projects of the Spanish Science and Technology System (VISION, PROVEC) and also to a European FP6 project (CHIL) as research assistant on multiview reconstruction. His research interests include 3D reconstruction, real-time and parallel algorithms, new computer-human interfaces, image and video restoration, super resolution, inverse problems and machine learning.
TRP channels play a key role in sensory physiology and have been the focus of intensive investigation in recent years. The proposed book will be a comprehensive, detailed overview of the ways in which TRP channels are involved in a wide variety of sensory modalities. Authors will explore the involvement of TRP channels in photo transduction (sight), chemotransduction (taste and odor), mechanotransduction (touch and hearing), thermo transduction (the sensation of temperature) and pain perception. Furthermore, the book will include some grounding chapters such as one on the history of TRP channel research, one on the biophysical characteristics of the proteins and one on trafficking and post-translational regulation. Juan Bacigalupo, born in Santiago, Chile, did his undergraduate in Biology at the Universidad de Chile, after which he obtained a position in the same university. He was trained in electrophysiology and biophysics in the renowned Laboratory of Montemar, Chile. He moved to Brandeis University (USA) for his doctoral studies. In this work he pioneered the patch clamp studies of single-channel currents in sensory receptor cells, working on Limulus photoreceptors. He then returned to Chile, focusing his research on the molecular and cellular bases of several modalities of sensory transduction as well as other aspects of sensory physiology and biophysics. He uses a variety of multidisciplinary tools, of which recording unitary transduction channel currents directly from sensory cilia and microvilli has been particularly successful in exploring the physiology of these highly specialized organelles, and represents a seal of his laboratory. He has been awarded a Guggenheim Foundation Fellowship, a Presidential Chair in Science (Chile) and is President of the Chilean Society for Neuroscience. Rodolfo Madrid was born in Santiago, Chile. He did his PhD thesis with Juan Bacigalupo at the Universidad de Chile, where he was trained in electrophysiology, biophysics and sensory physiology. After a post-doctorate at the University of Washington, he moved to the Instituto de Neurociencias de Alicante. He contributed to unveil the role of the thermoTRP channel TRPM8 and Kv1 potas sium channels in cold sensitivity and excitability of primary sensory neurons of the somatosensory system. He returned to Chile in 2008, where he settled his own laboratory at the Universidad de Santiago de Chile, focusing his research on the study of the molecular and cellular bases of thermotransduction and nociception, the role of TRP channels and other voltage-sensitive channels in sensory physiology, as well as biophysics of thermoTRP channels. He uses multidisciplinary approaches tha t include patch clamping of primary sensory neurons, calcium imaging, extracellular recording of thermoreceptors and nociceptors ex vivo and molecular and cell biology tools. He is Associate Professor of the Faculty of Chemistry and Biology of the Universidad de Santiago de Chile and Director of the Doctoral Program in Neuroscience of this University.
This book presents electromagnetic (EM) design and analysis of dipole antenna array over high impedance substrate (HIS). HIS is a preferred substrate for low-profile antenna design, owing to its unique boundary conditions. Such substrates permit radiating elements to be printed on them without any disturbance in the radiation characteristics. Moreover HIS provides improved impedance matching, enhanced bandwidth, and increased broadside directivity owing to total reflection from the reactive surface and high input impedance. This book considers different configurations of HIS for array design on planar and non-planar high-impedance surfaces. Results are presented for cylindrical dipole, printed dipole, and folded dipole over single- and double-layered square-patch-based HIS and dogbone-based HIS. The performance of antenna arrays is analyzed in terms of performance parameters such as return loss and radiation pattern. The design presented shows acceptable return loss and mainlobe gain of radiation pattern. This book provides an insight to EM design and analysis of conformal arrays. This book serves as an introduction for beginners in the design and analysis of HIS-based antenna arrays. It includes pictorial description of both planar and non-planar array design and the detailed discussion of the performance analysis of HIS-based planar and non-planar antenna array. It will prove useful to researchers and professionals, alike. Dr. Hema Singh is currently working as Senior Scientist in Centre for Electromagnetics of CSIR-National Aerospace Laboratories, Bangalore, India. Earlier, she was Lecturer in EEE, BITS, Pilani, India during 2001-2004. She obtained her Ph.D. degree in Electronics Engineering from IIT-BHU, Varanasi India in 2000. Her active area of research is Computational Electromagnetics for Aerospace Applications. More specifically, the topics she has contributed to, are GTD/UTD, EM analysis of propagation in an indoor environment, Phased Arrays, Conformal Antennas, Radar Cross Section (RCS) Studies including Active RCS Reduction. She received Best Woman Scientist Award in CSIR-NAL, Bangalore for period of 2007-2008 for her contribution in area of phased antenna array, adaptive arrays, and active RCS reduction. Dr. Singh has co-authored one book, one book chapter, and over 120 scientific research papers and technical reports. Ms. Chandini R. obtained her BE (ECE) degree from Visvesvaraya Technological University, Karnataka. She was a Project Engineer at the Centre for Electromagnetics of CSIR-National Aerospace Laboratories, Bangalore, where she worked on RCS studies and conformal arrays. Dr. Rakesh Mohan Jha was Chief Scientist & Head, Centre for Electromagnetics, CSIR-National Aero space Laboratories, Bangalore. Dr. Jha obtained a dual degree in BE (Hons.) EEE and MSc (Hons.) Physics from BITS, Pilani (Raj.) India, in 1982. He obtained his Ph.D. (Engg.) degree from Department of Aerospace Engineering of Indian Institute of Science, Bangalore in 1989, in the area of computational electromagnetics for aerospace applications. Dr. Jha was a SERC (UK) Visiting Post-Doctoral Research Fellow at University of Oxford, Department of Engineering Science in 1991. He worked as an Alexander von Humboldt Fellow at the Institute for High-Frequency Techniques and Electronics of the University of Karlsruhe, Germany (1992-1993, 1997). He was awarded the Sir C.V. Raman Award for Aerospace Engineering for the Year 1999. Dr. Jha was elected Fellow of INAE in 2010, for his contributions to the EM Applications to Aerospace Engineering. He was also the Fellow of IETE and Distinguished Fellow of ICCES. Dr. Jha has authored or co-authored several books, and more than five hundred scientific research papers and technical reports. He passed away during the production of this book of a cardiac arrest.
This book considers a cylindrical phased array with microstrip patch antenna elements and half-wavelength dipole antenna elements. The effect of platform and mutual coupling effect is included in the analysis. The non-planar geometry is tackled by using Eulers transformation towards the calculation of array manifold. Results are presented for both conducting and dielectric cylinder. The optimal weights obtained are used to generate adapted pattern according to a given signal scenario. It is shown that array along with adaptive algorithm is able to cater to an arbitrary signal environment even when the platform effect and mutual coupling is taken into account. This book provides a step-by-step approach for analyzing the probe suppression in non-planar geometry. Its detailed illustrations and analysis will be a useful text for graduate and research students, scientists and engineers working in the area of phased arrays, low-observables and stealth technology. Hema Singh is currently working as Principal Scientist in Centre for Electromagnetics of CSIR-National Aerospace Laboratories (NAL), Bangalore, India. Before NAL, she was Lecturer in EEE, BITS, Pilani, India during 2001-2004. She obtained her Ph.D. degree in Electronics Engineering from IIT-BHU, Varanasi India in 2000. Her active area of research is Computational Electromagnetics for Aerospace Applications. More specifically, the topics she has contributed to are GTD/UTD, EM analysis of propagation in an indoor environment, Phased Arrays, Conformal Antennas, Radar Cross Section (RCS) Studies including Active RCS Reduction. She has received the Best Woman Scientist Award at CSIR-NAL, Bangalore for period of 2007-2008 for her contribution in area of phased antenna array, adaptive arrays, and active RCS reduction. Dr. Singh has co-authored nine books, one book chapter, and over 170 scientific research papers and technical reports. Mausumi Dutta obtained M.Tech. in RF & Microwave Engineering from RV College of Engineering, Visvesvaraya Technological University Bangalore. She obtained her B.Tech. (ECE) degree in 2012 from ICFAI University, Tripura. She has worked on radar cross section based studies, and probe suppression in phased arrays. Neethu P.S. obtained B.Tech. (ECE) and M.Tech. in Communication Engineering from University of Calicut, Kerela, India. She is a Project Scientist at the Centre for Electromagnetics (CEM) of CSIR-National Aerospace Laboratories, Bangalore where she works on probe suppression in phased arrays on planar and non-planar surfaces, and RCS studies for aerospace vehicles.
This book is a hands-on, real-world guide to building and implementing a robust Oracle E-Business Suite System using the new Release, EBS 12.2. It explains the rationale for using an Oracle E-business suite environment in a business enterprise and covers the major technology stack changes from EBS version 11i through R12.2. The book clarifies how to build up an EBS environment from a simple single-node installation to a complex multi-node high available setup. Practical Oracle E-Business Suite focuses on release R12.2, but key areas in R12.1 are also covered wherever necessary. Oracle E-Business suite R12.2 includes major changes in Technology Stack components and introduced many new features. And these changes and new features must be added to the skill set of those individuals responsible for implementing and managing Oracle EBS. Practical Oracle E-Business Suite provides detailed instructions for the Installation of EBS R12.2 in single and multi-node configurations, the logic and methodology used in EBS patching, and cloning of EBS single-node and complex multi-node environments configured with RAC. This book also provides filtered valuable information about such areas as FMW used in EBS 12.2, as well as performance tuning and EBS 12.2 on engineered system implementations. The following are the key areas of coverage: Introduction to Oracle E-Business Suite, general definition of the EBS product families and the overview of the new system architecture implemented in EBS 12.2 EBS 12.2 single node/multi-node installations along with the EBS 12.2 upgrades EBS 12.2 Application and database tier components along with details about the newly introduced EBS 12.2 FMW components, the new application filesystem (dual fs) and the new patching concept called online patching. Administration utilities including adconfig and rapid clone, along with their usages for managing and maintaining the EBS 12.2 systems. Security features and key areas for performance tuning in EBS 12.2 Implementing EBS 12.2 on Engineered Systems(Exadata, ODA and Exalogic) What youll learn Understanding Oracle EBS Software and underlying technology stack components Installation/configuration of Oracle E-Business Suite R12.2 in simple and HA complex setups Management of Oracle EBS 12.2 Using online patching (adop) for Installation of Oracle EBS patches Cloning of EBS Suite Environment in simple and complex configuration Performance and tuning of Oracle EBS in all layers (Application/DB/OS/NW) Securing E-Business Suite R12.2 Syed Zaheer is currently working as a Senior Oracle Apps DBA for the largest stock exchange in the Middle East and North Africa. He has a decade of experience in the implementation and management of Oracle E-Business suites, Oracle HA Stack, Oracle Fusion Middleware, and Oracle Databases. He has deep experience in managing Oracle Enterprise Linux 5/6 and Oracle Solaris 10/11. He is an active member of Oracle technology forums and Oracle awarded him the status of GURU for his contributions. He is also an active member of the Toad World community and has published many articles on www.toadworld.com and is Oracle certified in Operating Systems, Application, Databases, Engineered systems, and Middle ware. Zaheer has been part of 30+ successful E-Business suite Implementations/Upgrades/Migrations from version 11i to version R12.2.4. He has domain knowledge in diversified business verticals including financials, FMCG, manufacturing, and consulting. He is an active blogger since 2008 and has published 100+ unique articles on his blog http://appsdbaworkshop.com with 400K + hits. He is also a book reviewer and reviewed books on Oracle technologies. Erman Arslan is currently working as Applications and Database Operations Manager and Leading Oracle Consultant for Partnera Consulting Services. He is a Principle Apps Dba, Oracle-certified Linux and Certified Exadata Admin with lots of field experience in several Oracle projects implemented in several sectors as banking, healthcare, insurance, manufacturing, retail, telecommunications, transportation, oil and gas, TV, and more. He studied Computer Engineering and received an MBA in ?stanbul Turkey. He is a blogger who has written about Oracle Technologies (Erman Arslan Oracle Blog - www.ermanarslan.blogspot.com) since 2013. Arslan also answers the questions of his readers and provides support for their problems in his Oracle forum.(Erman Arslans Oracle Forum