This SpringerBrief details various techniques employed for enhancing the transmission efficiency of radomes by modifying the radome wall configurations. These broadbanding techniques are based on inclusion of metallic wire-grids/meshes in the radomewalls, inclusion of metallic strip-gratings in the radome layers, inclusion of FSS based structures in between the radome layers and the use of inhomogeneous dielectric structures as radome wall. The volume provides detailed chapter-wise explanation of the design aspects and discusses the performance analysis of the modified radome wall configurations. It will be of interest to researchers, academicians and students working in the field of radomes.
This book reports on a new radome wall configuration based on an inhomogeneous planar layer, which overcomes current fabrication constraints in radome design and yields improved electromagnetic (EM) characteristics. The book also includes a detailed description of radomes and antenna-radome interaction studies for different radome wall configurations. The radome wall was designed using the equivalent transmission line method (EQTLM), since it requires less computational speed and provides accurate results. In order to substantiate the accuracy of the results obtained using EQTLM, the simulated results based on full wave methods like CST Microwave Studio Suite are also included. The EM performance analysis of the antenna-radome system for two radome shapes, tangent ogive (for airborne applications) and hemispherical (for ground-based applications), was performed using Geometric Optics Method in conjunction with the Aperture Integration Method. To show the efficacy of the new design, a comparison of performance characteristics between the novel radome and conventional wall configurations is also included. Lastly, it presents antenna-radome interaction studies for various aperture distributions. The book offers a unique resource for all researchers working in the area of microwave radomes.
This book presents a review of techniques based on waveguide systems, striplines, freespace systems and more, discussing the salient features of each method in detail. Since metamaterials are typically inhomogeneous and anisotropic, the experimental techniques for electromagnetic (EM) material characterization of metamaterial structures need to tackle several challenges. Furthermore, the modes supported by metamaterial structures are extremely sensitive to external perturbations. As such the measurement fixtures for EM material characterization have to be modified to account for such effects. The book provides a valuable resource for researchers working in the field of metamaterials
This book provides a summarized information related to the global herbal drug market and its regulations, ethnopharmacology of traditional crude drugs, isolation of phytopharmaceuticals, phytochemistry, standardization, and quality assessment of crude drugs. Natural products science has constantly been developing with comprehensive data contemplating different parts of natural drugs, such as global trade, quality control and regulatory concerns, traditional medicine systems, production and utilization of drugs, and utilization of medicinal and aromatic plants. This broad information about crude drugs gives rise to a subject that is now recognized as advance natural products science. By contemplating all of this thorough knowledge of the areas, this book is intended to provide considerably to the natural products science. The area of natural products science involves a broad range of topics, such as the pharmacognostical, phytochemical, and ethno-pharmacological aspects of crude drugs. Each chapter gives a sufficient understanding to academicians and researchers in the respective topic. This book includes 40 illustrations and descriptions of roughly 80 medicinal plants used for herbal medicine. The book is an imperative source for all researchers, academicians, students, and those interested in natural products science. FEATURES Includes advance knowledge and detailed developments in natural products science Discusses the most important phytopharmaceuticals used in the pharmaceutical industry Explores the analysis and classification of novel plant-based medicinal compounds Includes standardization, quality control, and global trade of natural products Gives a deep understanding related to recent advances in herbal medicines to treat various ailments Discusses national and WHO regulations and policies related to herbal medicines Covers the complete profile of some important traditional medicinal plants, especially their historical background, biology, and chemistry
The true story of Dane Abdool, one of the youngest men on Floridas death row. The events that took him there, an immigrant familys struggle for justice that evades them and the pain, devastation and misunderstanding that follows them as Dane waits; time being his only friend. A mothers story, about her 19-year-old son who is arrested and indicted on charges of first degree murder. The prosecutor who attaches the death penalty and pursue it with a vengeance, the trial that follows, misunderstanding of two different cultures, witnesses that who are less than truthful, the detectives who manipulate the evidence, depositions that were not attainable by the defense from the prosecution witnesses. An account of the trial and the witness transcripts and events as they unfolded. A judge who is extremely ambitious and a family who give all that they have emotionally and financially to get justice. The defense attorneys, who becomes part of the family and to date has not taken another death case. The tragic death of a beautiful 17 year old girl who wanted to die and the family she Left behind. The girlfriend, an intelligent pre-law student and her strange obsessions , the diary, the love letters and the incredible journey as a devoted family continues to pursue the justice they believe they deserve. This book gives the details of what actually happened at the trial, it shows the conflicting testimonies of unscrupulous witnesses. The post interviews are revealed and the impact that these interviews may have had on the jury and the media if they were allowed into the court at trial. Information about the missing transcripts that to date has not been found. My name is Nazreen Mohammed, and I am Danes mother, I was born in Trinidad and Tobago. I migrated to the United States to create better opportunities for my children. I have been In the United States since 1996, I have recently taken time off to write this book and get My sons story out there and provide Clarity and some understanding to a media and public that judged him without really knowing who he was, while we wait patiently on the appeal process and the justice system with much Anticipation.
This book presents a review of techniques based on waveguide systems, striplines, freespace systems and more, discussing the salient features of each method in detail. Since metamaterials are typically inhomogeneous and anisotropic, the experimental techniques for electromagnetic (EM) material characterization of metamaterial structures need to tackle several challenges. Furthermore, the modes supported by metamaterial structures are extremely sensitive to external perturbations. As such the measurement fixtures for EM material characterization have to be modified to account for such effects. The book provides a valuable resource for researchers working in the field of metamaterials
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