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Advanced technologies such as artificial intelligence, big data, cloud computing, and the Internet of Things have changed the digital landscape, providing many new and exciting opportunities. However, they also provide ever-shifting gateways for information theft or misuse. Staying ahead requires the development of innovative and responsive security measures, and recent advances in optical technology have positioned it as a promising alternative to digital cryptography. Optical Cryptosystems  introduces the subject of optical cryptography and provides up-to-date coverage of optical security schemes. Optical principles, approaches, and algorithms are discussed as well as applications, including image/data encryption–decryption, watermarking, image/data hiding, and authentication verification. This book also includes MATLAB® codes, enabling students and research professionals to carry out exercises and develop newer methods of image/data security and authentication.

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This book provides an understanding of emerging methods for the synthesis of nanomaterials and how they can be translated into new green approaches to manufacturing. Starting with an introduction to the principles of green chemistry and engineering, the text highlights the special properties that nanomaterials possess, their applications, and ways to characterise them. It then describes conventional methods of synthesising and manufacturing inorganic nanomaterials and introduces biological and biomimetic/bioinspired synthetic methods as a more effective and sustainable manufacturing route. Two case studies of magnetic and silica materials are also provided for advanced readers.  Green Nanomaterials  is an insightful reference text for researchers in the field of synthetic biology and nanomaterials. It is an essential title for postgraduates and final-year undergraduates studying advanced materials, sustainable engineering or environmental chemistry.

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The study of exoplanets is one of the most vibrant fields of astrophysics today. Precise radial velocity (RV, or Doppler) measurements created the field by discovering the first exoplanets. Although employed for more than 30 years, RV measurements are still relevant today; when used with the transit method it provides the first characterization of exoplanets in terms of its mass, radius, and bulk density. These provide the first clues as to the internal structure of the exoplanet. With this text, Hatzes provides a deep understanding of the Doppler method, including how to achieve RV measurement precision, as well as the challenges, limitations, and potential of the technique. It also covers other aspects of the method such instrumentation, wavelength calibration, finding periodic signals in RV time series, signal interpretation, and Keplerian orbits. It's an essential reference for researchers and graduate students in the field of exoplanets, and additionally stellar spectroscopists and instrumentalists.

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The area of machine learning, especially deep learning, has exploded in recent years, producing advances in everything from speech recognition and gaming to drug discovery. Tomographic imaging is another major area that is being transformed by machine learning, and its potential to revolutionise medical imaging is significant. Written by active researchers in the field,  Machine Learning for Tomographic Imaging  presents a unified overview of deep-learning-based tomographic imaging. Key concepts, including classic reconstruction ideas and human vision inspired insights, are introduced as a foundation for a thorough examination of artificial neural networks and deep tomographic reconstruction. X-ray CT and MRI reconstruction methods are covered in detail, and other medical imaging applications are discussed. An engaging and accessible style makes this book an ideal introduction for those in applied disciplines, as well as those in more theoretical fields who wish to learn about application contexts. Hands-on projects are also suggested, and links to open source software, working datasets, and network models are included.

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This book provides an insight into the global practices for environmental management of military live-fire training ranges by combining scientific research with practical solutions to ensure continued training capability. The text is divided into four parts: the first provides the background information necessary to understand the scientific principles behind environmental management. The second part comprises methodologies for the environmental risk assessment of explosives and munitions, and the third collates case studies and innovative management techniques that have been applied to reduce remediation costs. Finally, part four considers the design of greener or insensitive munitions to reduce environmental impact. This is an essential reference guide for those with a responsibility for environmental management of military training ranges, and who are required to ensure sustainable long-term training capability.<br><br>

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Designed to support candidates through the training and examination scheme of bodies such as the Royal College of Radiologists, this text focuses on the aspects of anatomy that are most relevant to the achievement of fellowship status. The text is arranged in a manner to encourage learning and an understanding of the key concepts rather than just providing a vehicle to pass the exams. Each chapter consists of a series of questions typical of those found on the fellowship exams. The images and diagrams that accompany each question provide a stimulus to the concepts being challenged, whilst the answers also contain explanations that, in many instances, go beyond that strictly necessary to support the answer. Examination tips to better prepare readers are also included.

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