Hamed Abdallah (155 results)
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Recent Advances in Antiviral Activity of some N-Heterocyclic compounds
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Recent Advances in Antiviral Activity of some N-Heterocyclic compounds
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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The Antibacterial Resistance: What is it?
Imam Ismael, Iman Hamed; Morsy Mohamed, Nesrin Mahmoud; A Yosef, Hisham Abdallah
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Recent Advances in Antiviral Activity of some N-Heterocyclic compounds
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Language: English
Published by Springer Nature Switzerland AG, Cham, 2025
Series: Book 440 of 472 - SpringerBriefs in Applied Sciences and Technology
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Paperback. Condition: new. Paperback. This book explores advanced image processing techniques for systems with deformed and sparse apertures. Building on the author's recent research, this book is designed for graduate students and researchers in the fields of optical sciences and optical engineering.The book begins with a uniqu…e investigation into aperture shapes inspired by coronavirus (COVID-19) imagery, followed by an analysis of cardiac-shaped apertures and their integration into confocal laser systems. Subsequent chapters look at the design and resolution analysis of heterogeneous apertures, including cascaded black-linear and linear-conic configurations, as well as hexagonal geometries.The book also introduces the Straubel filter within circular apertures and its impact on confocal imaging performance. Later chapters revisit the coronavirus model in optical contexts and explore triangular aperture models applied to speckle photography. The final chapter presents a comprehensive study of Modulated Sparse Aperture Imaging Systems (MSAIS) and their effectiveness in enhancing speckle image quality.With a blend of theoretical modeling, practical design, and application-driven insights, this book offers a valuable contribution to the evolving field of computational optics and aperture engineering. Shipping may be from multiple locations in the US or from the UK, depending on stock availability.
Language: English
Published by Springer, 2024
Series: Book 346 of 472 - SpringerBriefs in Applied Sciences and Technology
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Progr?s r?cents dans l'activit? antivirale de certains compos?s N-h?t?rocycliques
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Progr?s r?cents dans l'activit? antivirale de certains compos?s N-h?t?rocycliques
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Published by Springer, 2024
Series: Book 360 of 472 - SpringerBriefs in Applied Sciences and Technology
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Progrès récents dans l'activité antivirale de certains composés N-hétérocycliques (French Edition)
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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La r?sistance antibact?rienne, qu'est-ce que c'est?
Imam Ismael, Iman Hamed; Morsy Mohamed, Nesrin Mahmoud; A Yosef, Hisham Abdallah
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La résistance antibactérienne, qu'est-ce que c'est? (French Edition)
Imam Ismael, Iman Hamed; Morsy Mohamed, Nesrin Mahmoud; A Yosef, Hisham Abdallah
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Language: English
Published by Springer, 2025
Series: Book 424 of 472 - SpringerBriefs in Applied Sciences and Technology
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Published by Springer, 2025
Series: Book 403 of 472 - SpringerBriefs in Applied Sciences and Technology
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La r?sistance antibact?rienne, qu'est-ce que c'est?
Imam Ismael, Iman Hamed; Morsy Mohamed, Nesrin Mahmoud; A Yosef, Hisham Abdallah
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Language: English
Published by Springer Nature, 2025
Series: Book 440 of 472 - SpringerBriefs in Applied Sciences and Technology
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The Enzymes in Synthesis of Chiral Bioactive Compounds
Mahmoud Morsy Mohamed, Nesrin; Hamed Imam Ismael, Eman; Abdallah A. Yosef, Hisham
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The Antibacterial Resistance: What is it?
Imam Ismael, Iman Hamed; Morsy Mohamed, Nesrin Mahmoud; A Yosef, Hisham Abdallah
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Recent Advances in Antiviral Activity of some N-Heterocyclic compounds
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Language: English
Published by Springer Nature Switzerland, 2024
Series: Book 346 of 472 - SpringerBriefs in Applied Sciences and Technology
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Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book covers speckle image formation using a variety of modulated apertures. The central theme revolves around theoretical analyses, specifically the calculation of impulse responses or Point Spread Functions (PSFs) corresponding to these apert…ures. These calculations provide crucial insights into the resolution inherent in the resulting speckle images. The book begins with an examination of the recognition of the direction of new apertures from elongated speckle images, setting the stage for subsequent discussions. The theoretical analyses extend to diverse aperture designs, including Gaussian, graded-index, and modulated apertures. The book delves into the nuanced dynamics of contrast in speckle images, exploring the Voigt distribution and the effects of modulation on contrast.In addition to aperture-centric discussions, the book addresses the processing of the formed speckle images. The chapters impart a comprehensive understanding of speckle imaging, encompassing discrimination in microscopy using digital speckle images, the utilization of concentric hexagonal pupils, and the exploration of irregular apertures. The book culminates in a detailed exploration of speckle imaging in the context of an annular Hermite Gaussian laser beam.Overall, this book serves as a valuable resource for researchers and academics seeking a profound exploration of speckle image formation, modulation, and processing across a spectrum of apertures and theoretical frameworks.
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Published by Springer Nature Switzerland, Springer Nature Switzerland, 2023
Series: Book 304 of 472 - SpringerBriefs in Applied Sciences and Technology
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Seller: AHA-BUCH GmbH, Einbeck, GermanyAHA-BUCH GmbH
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book serves as a valuable resource for researchers and graduate students specializing in optical engineering and optical sciences. Comprising three distinct parts, it addresses fundamental aspects and practical applications of modulated apertu…res in microscopy. The first part delves into the fabrication of modulated apertures and the computation of impulse responses or point spread functions (PSFs). It offers essential insights into the foundational concepts of modulated aperture design. The second part focuses on the utilization of modulated apertures in speckle imaging, elucidating their significance and relevance in this context. This section provides a comprehensive understanding of the practical applications of modulated apertures in image formation. The third and final part explores the application of modulated apertures within the framework of a confocal scanning laser microscope. The objective here is to enhance microscope resolution and image contrast, contributing tothe advancement of microscopy techniques. This book offers a concise and objective exploration of modulated apertures' fabrication, applications, and their potential to enhance microscopy. This book is a valuable reference for students and researchers seeking to deepen their knowledge in this specialized field.
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Language: English
Published by Springer Nature Switzerland, 2024
Series: Book 360 of 472 - SpringerBriefs in Applied Sciences and Technology
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book looks at the application of cascaded interferometers in both theoretical and practical contexts, particularly focusing on enhancing image contrast and facilitating medical diagnostics. Commencing with a comprehensive exploration of modula…ted two-beam interference employing Fourier optics, it progresses to discuss the implementation of a cascaded Michelson interferometer, with a specialized emphasis on its utility in analyzing microscopic structures such as glass fibers. Subsequent chapters examine step-index fibers using multiple laser beam interferometry and introduce sophisticated models for interpreting fringe shifts in unclad glass fibers through ordinary multiple-beam interference.Moreover, the book addresses the recognition of modulated apertures employing a Cascaded Fabry-Perot Interferometer (CFPI) and discusses its implications for various applications. It looks at the processing of retinal artery images leveraging higher orders of two-beam interference and investigates the utility of cascaded interferometric techniques in examining kidney and colon images. Furthermore, it presents a novel approach to image processing of coronaviruses utilizing interferometry techniques, showcasing the potential of interferometric methods in medical research and diagnostics.Through its systematic exploration of cascaded interferometers and their diverse applications, this book is suited for researchers, practitioners, and students alike, offering insights into both fundamental principles and advanced methodologies in interferometry and medical imaging.
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Published by Springer Nature Switzerland, Springer Nature Switzerland, 2025
Series: Book 403 of 472 - SpringerBriefs in Applied Sciences and Technology
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book provides a thorough exploration of various modulated apertures and their impact on improving microscope resolution, with a focus on confocal scanning laser microscopy (CSLM). Over the course of eleven chapters, it looks at both the theore…tical aspects and practical applications of different aperture shapes.Chapters 1 and 2 review apertures with linear, quadratic, and concentric black-and-white (B/W) zones, along with linear-quadratic and polynomial designs. Additionally, apertures with Hamming, Cauchy, rectangular, and hexagonal shapes are analyzed for their potential to enhance imaging performance.Chapter 3 presents the computation of coherent transfer functions (CTFs) for selected modulated apertures, offering insights into their influence on imaging quality. Chapter 4 focuses on confocal microscopes, exploring how these apertures affect the imaging of microscopic objects.A theoretical study of coherent non-scanned laser microscopes (CNSM) is covered in Chapter 5. Chapter 6 addresses the computation of lateral and axial point spread functions (PSFs) in confocal imaging systems that use binary amplitude masks, while Chapter 7 investigates the effects of misalignment errors combined with wavefront aberrations in systems using linear and quadratic apertures.In Chapter 8, diffraction intensity is calculated for a confocal microscope with a laterally displaced truncated Gaussian aperture, extending the principles of Marechal microscopy to confocal scanning microscopy. Chapters 9 and 10 examine spatial coherence in confocal optical systems, particularly in the context of quadratic and concentric B/W apertures.The book concludes in Chapter 11 with an application of cardiac apertures in CSLM, demonstrating their use in processing cardiac images. This work serves as a valuable reference for researchers and professionals interested in advancing microscope resolution through innovative aperture design and analysis.
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Avan?os recentes na atividade antiviral de alguns compostos N-heteroc?clicos
Morsy Mohamed, Nesrin Mahmoud; Imam Ismael, Eman Hamed; A Yosef, Hisham Abdallah
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Language: English
Published by Springer, 2025
Series: Book 440 of 472 - SpringerBriefs in Applied Sciences and Technology
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book explores advanced image processing techniques for systems with deformed and sparse apertures. Building on the author's recent research, this book is designed for graduate students and researchers in the fields of optical sciences and opti…cal engineering.The book begins with a unique investigation into aperture shapes inspired by coronavirus (COVID-19) imagery, followed by an analysis of cardiac-shaped apertures and their integration into confocal laser systems. Subsequent chapters look at the design and resolution analysis of heterogeneous apertures, including cascaded black-linear and linear-conic configurations, as well as hexagonal geometries.The book also introduces the Straubel filter within circular apertures and its impact on confocal imaging performance. Later chapters revisit the coronavirus model in optical contexts and explore triangular aperture models applied to speckle photography. The final chapter presents a comprehensive study of Modulated Sparse Aperture Imaging Systems (MSAIS) and their effectiveness in enhancing speckle image quality.With a blend of theoretical modeling, practical design, and application-driven insights, this book offers a valuable contribution to the evolving field of computational optics and aperture engineering.
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Language: English
Published by Springer, 2025
Series: Book 424 of 472 - SpringerBriefs in Applied Sciences and Technology
- Softcover
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Taschenbuch. Condition: Neu. Druck auf Anfrage Neuware - Printed after ordering - This book highlights the formation of holographic images using modulated apertures across eleven comprehensive chapters. It begins with a summary of basic Fourier transformations used to compute diffraction patterns of well-known objects. The funda…mentals of holography are outlined, followed by an investigation of Fourier holographic images obtained using argon plasma. This book also explores Fourier holographic images using modulated Hamming apertures and discusses the use of scanning holography with linear and quadratic apertures. Advanced topics include the processing and segmentation of cancerous mammographic images using improved Fourier holograms, and the detailed study of Fourier holographic imaging of modulated apertures. The recognition of colored objects and the computation of the point spread function (PSF) using operator algebra in Gaussian beam illumination are also covered. This book concludes with a discussion on pattern recognition and information processing. This book serves as an essential resource for researchers and students interested in the advanced techniques and applications of holographic imaging.
