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Design of Green Liquid Dielectrics for Transformers: Biodegradable Insulating Materials for Transformers (River Publishers Series in Biotechnology and Medical Research)
by T. Mariprasath Victor Kirubakaran Perumal Saraswathi Reddy Kumar Cheepati Prakasha Kunkanadu RajappaThis book provides in-depth information about the latest trends in transformer insulation design. This practical guide is prepared from a hands-on perspective, offering readers valuable insights into the trends in liquid dielectrics for transformer applications. Chapter 1 covers the necessity of alternate liquid dielectrics for transformers. Chapter 2 delves into the historical development of liquid dielectrics for transformer applications, drawing insights from reputable publications. It also explores the impact of nanoparticles on ester oil characteristics. In Chapter 3, the significance of spectroscopy analysis for investigating the ageing effect on both cellulosic insulating materials and oil samples is discussed. Chapter 4 describes material preparations followed by experimental analysis, estimating the degradation rate of solid and liquid dielectrics using spectroscopies. Chapter 5 discusses the importance of condition monitoring for transformers and its historical methods. Chapter 6 explores the methodology for hot spot indication and its application for assessing the transformer's condition. It covers real-time case studies as well. In Chapter 7, the book investigates the application of artificial intelligence in transformer insulation systems, leveraging machine learning algorithms to predict transformer insulation.
Design of Hydraulic Gates
by Paulo C.F. ErbistiRevised and updated, this second edition of Design of Hydraulic Gates maintains the same goal as the original: to be used as a textbook and a manual of design of gates, presenting the main aspects of design, manufacture, installation and operation of hydraulic gates, while introducing new products, technologies and calculation procedures. This edit
Design of Hydrodynamic Machines: Pumps and Hydro-Turbines
by Getu Hailu Michal Varchola Peter HlbocanDesign of Hydrodynamic Machines provides a broad, yet concise, theoretical background on the relationship between fluid dynamics and geometry. It covers the most important types of turbomachinery used in power generation industrial processes, utilities, and the oil and gas industry. Offering guidance on the hydraulic design aspect of different parts of turbomachinery, such as impellers, diffusers, volute casing, inlet and outlets, the book discusses how to conduct performance characteristics testing and evaluate performance parameters of the designed parts. It also covers aspects of CFD of turbomachinery. Readers will be able to perform hydraulic design of important turbomachinery parts using commercially available software.Intended for final year undergraduates and postgraduates in mechanical, civil, and aeronautical engineering, the book will also be useful for those involved in the hydraulic design, analysis, and testing of turbomachinery.
Design of Intelligent Applications using Machine Learning and Deep Learning Techniques
by Antonis Michalas Meera Narvekar Ramchandra S. Mangrulkar Narendra M. Shekokar Pallavi V. ChavanMachine learning (ML) and deep learning (DL) algorithms are invaluable resources for Industry 4.0 and allied areas and are considered as the future of computing. A subfield called neural networks, to recognize and understand patterns in data, helps a machine carry out tasks in a manner similar to humans. The intelligent models developed using ML and DL are effectively designed and are fully investigated – bringing in practical applications in many fields such as health care, agriculture and security. These algorithms can only be successfully applied in the context of data computing and analysis. Today, ML and DL have created conditions for potential developments in detection and prediction. Apart from these domains, ML and DL are found useful in analysing the social behaviour of humans. With the advancements in the amount and type of data available for use, it became necessary to build a means to process the data and that is where deep neural networks prove their importance. These networks are capable of handling a large amount of data in such fields as finance and images. This book also exploits key applications in Industry 4.0 including: · Fundamental models, issues and challenges in ML and DL. · Comprehensive analyses and probabilistic approaches for ML and DL. · Various applications in healthcare predictions such as mental health, cancer, thyroid disease, lifestyle disease and cardiac arrhythmia. · Industry 4.0 applications such as facial recognition, feather classification, water stress prediction, deforestation control, tourism and social networking. · Security aspects of Industry 4.0 applications suggest remedial actions against possible attacks and prediction of associated risks. - Information is presented in an accessible way for students, researchers and scientists, business innovators and entrepreneurs, sustainable assessment and management professionals. This book equips readers with a knowledge of data analytics, ML and DL techniques for applications defined under the umbrella of Industry 4.0. This book offers comprehensive coverage, promising ideas and outstanding research contributions, supporting further development of ML and DL approaches by applying intelligence in various applications.
Design of Linear Multivariable Feedback Control Systems: The Wiener–Hopf Approach using Transforms and Spectral Factorization
by Kiheon Park Joseph J. Bongiorno Jr.This book contains a derivation of the subset of stabilizing controllers for analog and digital linear time-invariant multivariable feedback control systems that insure stable system errors and stable controller outputs for persistent deterministic reference inputs that are trackable and for persistent deterministic disturbance inputs that are rejectable. For this subset of stabilizing controllers, the Wiener-Hopf methodology is then employed to obtain the optimal controller for which a quadratic performance measure is minimized. This is done for the completely general standard configuration and methods that enable the trading off of optimality for an improved stability margin and/or reduced sensitivity to plant model uncertainty are described. New and novel results on the optimal design of decoupled (non-interacting) systems are also presented. The results are applied in two examples: the one- and three-degree-of-freedom configurations. These demonstrate that the standard configuration is one encompassing all possible feedback configurations. Each chapter is completed by a group of worked examples, which reveal additional insights and extensions of the theory presented in the chapter. Three of the examples illustrate the application of the theory to two physical cases: the depth and pitch control of a submarine and the control of a Rosenbrock process. In the latter case, designs with and without decoupling are compared. This book provides researchers and graduate students working in feedback control with a valuable reference for Wiener–Hopf theory of multivariable design. Basic knowledge of linear systems and matrix theory is required.
Design of Materials and Technologies for Environmental Remediation (The Handbook of Environmental Chemistry #115)
by Shunitz Tanaka Masaaki Kurasaki Masaaki Morikawa Yuichi KamiyaThis book describes environmental remediation technologies to remove pollutants from the environment and the environmental materials used for remediation. The focus is on the functional design of environmental materials, especially to create materials for coping with a variety of pollutants in different concentrations and conditions. The authors present research highlights from their work in this area and aim to inspire the development of new concepts in environmental remediation. This work is a must-read for practitioners who are exploring restoration technologies and materials for solving environmental pollution as well as researchers and graduate students studying environmental remediation. A number of Asian researchers who have been engaged in these studies are among the authors, and this book will contribute to solving pollution problems in Asia as well as the rest of the world.
Design of Multiphase Reactors
by Vishwas G. PangarkarDetails simple design methods for multiphase reactors in the chemical process industriesIncludes basic aspects of transport in multiphase reactors and the importance of relatively reliable and simple procedures for predicting mass transfer parametersDetails of design and scale up aspects of several important types of multiphase reactorsExamples illustrated through design methodologies presenting different reactors for reactions that are industrially importantIncludes simple spreadsheet packages rather than complex algorithms / programs or computational aid
Design of Novel Biosensors for Optical Sensing and Their Applications in Environmental Analysis (Springer Theses)
by Kun YinThis book introduces readers to the development of novel optical biosensors for environmental analysis. Environmental pollution has now become a serious problem, which threatens the health of human beings. Traditional analytical methods have a number of drawbacks, such as the need for professional operators and complicated instruments. After millions of years of evolution, biomolecules can perform various functions with good accuracy and efficiency due to their unique structures, offering a viable alternative to traditional methods. This work focuses on using new biological sensing strategies, e.g. those based on special biomaterials, bio-reactions or living cells, to establish novel biosensors. As these biosensors offer satisfactory optical response performance, they can be used to transform the recognition behavior of specific targets into optical signals and effectively detect target objects.
Design of Observational Studies (Springer Series in Statistics)
by Paul R. RosenbaumThis second edition of Design of Observational Studies is both an introduction to statistical inference in observational studies and a detailed discussion of the principles that guide the design of observational studies. An observational study is an empiric investigation of effects caused by treatments when randomized experimentation is unethical or infeasible. Observational studies are common in most fields that study the effects of treatments on people, including medicine, economics, epidemiology, education, psychology, political science and sociology. The quality and strength of evidence provided by an observational study is determined largely by its design. Design of Observational Studies is organized into five parts. Chapters 2, 3, and 5 of Part I cover concisely many of the ideas discussed in Rosenbaum’s Observational Studies (also published by Springer) but in a less technical fashion. Part II discusses the practical aspects of using propensity scores and other tools to create a matched comparison that balances many covariates, and includes an updated chapter on matching in R. In Part III, the concept of design sensitivity is used to appraise the relative ability of competing designs to distinguish treatment effects from biases due to unmeasured covariates. Part IV is new to this edition; it discusses evidence factors and the computerized construction of more than one comparison group. Part V discusses planning the analysis of an observational study, with particular reference to Sir Ronald Fisher’s striking advice for observational studies: "make your theories elaborate." This new edition features updated exploration of causal influence, with four new chapters, a new R package DOS2 designed as a companion for the book, and discussion of several of the latest matching packages for R. In particular, DOS2 allows readers to reproduce many analyses from Design of Observational Studies.
Design of Piles Under Cyclic Loading: SOLCYP Recommendations
by Alain Puech Jacques GarnierRecent developments in the fields of energy, transport and industrial engineering have led to the emergence of new types of structures and infrastructures subject to variable stresses, for which the usual methods for designing pile foundations are now inadequate. The recommendations presented in this book will help to partly fill this technical gap by proposing a methodological approach and calculation methods to take account of the effects of cyclic loads in the design of foundations on piles. These are based on both laboratory and full scale experiments, and on modeling carried out within the framework of the national SOLCYP project.
Design of Polymeric Platforms for Selective Biorecognition
by Juan Rodríguez-Hernández Aitziber L. CortajarenaThis book addresses in an integrated manner all the critical aspects for building the next generation of biorecognition platforms - from biomolecular recognition to surface fabrication. The most recent strategies reported to create surface nano and micropatterns are thoroughly analyzed. This book contains descriptions of the types of molecules immobilized at surfaces that can be used for specific biorecognition, how to immobilize them, and how to control their arrangement and functionality at the surface. Small molecules, peptides, proteins and oligonucleotides are at the core of the biorecognition processes and will constitute a special part of this book. The authors include detailed information on biological processes, biomolecular screening, biosensing, diagnostic and detection devices, tissue engineering, development of biocompatible materials and biomedical devices.
Design of Pressure Vessels
by Subhash Reddy GaddamPressure vessels are prone to explosion while in operation, due to possible errors in material selection, design and other engineering activities. Addressing issues at hand for a working professional, this book covers material selection, testing and design of pressure vessels which enables users to effectively use code rules and available design softwares. Relevant equation derivations have been simplified with comparison to ASME codes. Analysis of special components flange, bellow and tube sheet are included with their background. Topics on tube bend, supports, thermal stresses, piping flexibility and non-pressure parts are described from structural perspective. Vibration of pressure equipment components are covered as well.
Design of Quantum Teleportation Schemes
by Ri-Gui Zhou Xiao-Xue Zhang Lin-Tao DuThis book offers a design-centered approach to quantum teleportation as well as in-depth analysis of various quantum teleportation schemes. Quantum teleportation, a vital component of practical quantum communication technologies, serves as a secure and reliable way to transmit confidential information. Quantum teleportation relies on the unique physical property of quantum superposition, accomplishing the remote transmission of information through unitary transformations and measurements on entangled states, combined with classical communication. Therefore, as one of the safe and reliable means of quantum state transmission between communicating parties, quantum teleportation is bound to play a vital role in future quantum communication. This book begins with the basics of quantum teleportation before going on to consider various refinements such as controlled, bidirectional, cyclic, symmetric, and asymmetric scenarios. It goes further, investigating a multitude of quantum teleportation schemes in bidirectional, controlled bidirectional, cyclic bidirectional, asymmetric cyclic controlled, and noisy environments, and conducts detailed performance analyses of these schemes. This book is an essential resource for students, researchers, and professionals in the field of quantum communications.
Design of Reinforced Concrete Silo Groups (Building Pathology and Rehabilitation #10)
by António C. Azevedo Fernando A.N. Silva Bernardo Horowitz João M.P.Q. DelgadoThis book offers a new calculation procedure of the structural behavior of grouped layout of silos, easy to use and with satisfactory responses. Groups of reinforced concrete silos are structures commonly used in the food industry, where it is usually necessary to separate the storage of different types and sources of grain. The grouped layout of silos has numerous benefits when compared with single-cell silos in which the emphasis is on creating further space for silage, normally referred to as interstice – a space formed between the edges of the group’s cells. This economic benefit, on the other hand, raises a structural problem for the designer of this type of building, which is to assess the magnitude of bending moments and hoop forces due to the structural continuity of the walls in the interstice region of the cells. Bending moments assume extreme values exactly when the interstice is loaded and the other cells in the group are empty. To develop the formulation of the proposed analysis models, a parametric study was carried out that allowed the adequate consideration of the variables involved. The idea is to help professionals, engineers, industrials and academics involved in this advanced interdisciplinary field as a comprehensive guide for courses offered at different levels of learning (undergraduate and postgraduate).
Design of Remediation Systems
by Jimmy H. Wong Chin Hong Lim Greg L. NolenWhile numerous books are available on remediation systems, this is the first work to document and explain in full the design aspects of the subject. Based on sound engineering principles and practical construction considerations, this text explains the entire process of remediation design, from assessment to completion, and provides engineers with the tools they need to conduct a pilot test, apply the results, and design a practical, efficient system.Design of Remediation Systems first establishes the underlying principles behind each technology, then outlines the standard procedures for designing a system. This comprehensive manual explains feasibility and pilot tests, data evaluation, design considerations and parameters, calculations and equations, and construction aspects of the system. Also featured are discussions of the operation and maintenance of systems, and analysis of current trends, such as combining soil vapor extraction with air sparging. Detailed case study examples are included in each chapter. The book considers petroleum hydrocarbons as the primary contaminant, but the principles and procedures can be applied to a wide range of other contaminants.This hands-on text/reference presents a complete picture of remediation system design for engineers, students, and scientists. No other single work offers the thorough coverage of this critical aspect of remediation.
Design of Shipboard Power System Grounding / Earthing
by Mohammed M. Islam Norbert Doerry John ProusalidisThis book delves into the diverse prerequisites for grounding and earthing in contemporary ship power systems, addressing the evolving landscape of ship design influenced by power electronics The introduction of transformative technologies such as variable frequency drives and electric propulsion systems has heightened the complexity of shipboard grounding systems. This complexity necessitates accommodation for robust electronic systems, extending the focus beyond traditional grounding aspects to include common mode grounding and its profound design implications. Engineers now require a comprehensive guide to navigate the intricacies of shipboard electric power systems. To meet this imperative, Design of Shipboard Power System Grounding/Earthing provides an in-depth exploration of the subject. It offers a step-by-step initiation into the grounding process, supported by numerous case studies for enhanced comprehension. Aligned with both US and international standards, this book serves as an essential resource for engineers engaged in the design and implementation of shipboard power systems. Key highlights for readers encompass meticulous comparisons between terrestrial power system grounding and shipboard power grounding, as well as comprehensive discussions on high resistance grounding, shipboard AC system grounding requirements, DC system grounding, and more, including common mode grounding and earthing. The inclusion of abundant engineering drawings supports significant case studies, enhancing the practical application of the material. Designed to cater to a broad audience, Design of Shipboard Power System Grounding/Earthing is invaluable for readers involved with shipboard electrical systems, including shipbuilders, ship designers, ship operators, and those in regulatory bodies such as the Navy, USCG, ABS, among others. This resource is also well-suited for academicians, particularly final-year undergraduate and graduate students in marine electrical engineering programs.
Design of Smart Power Grid Renewable Energy Systems (Wiley - Ieee Ser.)
by Ali KeyhaniThe Updated Third Edition Provides a Systems Approach to Sustainable Green Energy Production and Contains Analytical Tools for the Design of Renewable Microgrids The revised third edition of Design of Smart Power Grid Renewable Energy Systems integrates three areas of electrical engineering: power systems, power electronics, and electric energy conversion systems. The book also addresses the fundamental design of wind and photovoltaic (PV) energy microgrids as part of smart-bulk power-grid systems. In order to demystify the complexity of the integrated approach, the author first presents the basic concepts, and then explores a simulation test bed in MATLAB® in order to use these concepts to solve a basic problem in the development of smart grid energy system. Each chapter offers a problem of integration and describes why it is important. Then the mathematical model of the problem is formulated, and the solution steps are outlined. This step is followed by developing a MATLAB® simulation test bed. This important book: Reviews the basic principles underlying power systems Explores topics including: AC/DC rectifiers, DC/AC inverters, DC/DC converters, and pulse width modulation (PWM) methods Describes the fundamental concepts in the design and operation of smart grid power grids Supplementary material includes a solutions manual and PowerPoint presentations for instructors Written for undergraduate and graduate students in electric power systems engineering, researchers, and industry professionals, the revised third edition of Design of Smart Power Grid Renewable Energy Systems is a guide to the fundamental concepts of power grid integration on microgrids of green energy sources.
Design of Soft–Rigid Devices for Rehabilitative and Assistive Robotics (Springer Theses)
by Mihai DragusanuThis book describes a comprehensive research project in which different devices for rehabilitation, assistance, and haptic applications are designed and developed. The fil-rouge is the user-centered perspective, that has been employed in all the design and development phases, and the exploitation of soft robotics solutions allowing for a safe and comfortable interaction with the user. Extensive information concerning the design, the practical application and the assessment of various assistive devices for upper limb are included throughout the book, which also offers an up-to-date reference guide for dealing with future interdisciplinary research projects involving soft robotics and user-centered perspectives for enhancing robotic assistance capabilities
Design of Supporting Systems for Life in Outer Space: A Design Perspective on Space Missions Near Earth and Beyond (Research for Development)
by Annalisa DominoniThis book is a rich source of information on design research and solutions for the support and development of space missions. International experiences and researches are presented in order to cast light on the role of space design in improving living and working conditions in outer space and to highlight the particularities of the necessary design skills, taking into account specific requirements and constraints. The challenge facing designers is how to approach environmentally extreme conditions in such a way that they are transformed from limitations into opportunities. The author has herself developed products that have been tested during on-orbit experiments on the International Space Station. Drawing on this unique experience and other case studies, the author proposes a new design methodology for space and demonstrates how the discipline of design is able to generate innovation thanks to the strong capacity of visioning. Ultimately this will lead to the development of further new equipment for astronauts that will facilitate space travel. While the book is intended primarily for students and researchers, it is also of interest for a broad readership attracted by space, innovation, and future scenarios.
Design of Thermal Oxidation Systems for Volatile Organic Compounds
by David A LewandowskiControlling the emission of volatile organic compounds (VOC) became a very prominent environmental issue with the passage of the 1990 Clean Air Act Amendments, and will continue to be an environmental priority through the next decade. No single technology has played as important a role in the control of VOC emissions as thermal oxidation. It has the ability to destroy VOCs in a one-step process that produces innocuous by-products.Design of Thermal Oxidation Systems for Volatile Organic Compounds provides all the information needed for developing a thermal oxidation design in a single reference. It covers design, operation, and maintenance as well as the principles behind the classification of volatile organic compounds as hazardous waste. The author explores the primary purpose of thermal oxidizers and discusses their limitations.The book provides:practical, complete, and concise thermal oxidizer design principlesan outline of state-of-the-art design principlesa practical rather than theoretical approachreal industrial examples in each chapterWith the new regulations that affect VOC emissions, engineers from such diverse fields as oil refining, chemical distillation and separation processes, and pharmaceutical industries will need to design and implement thermal oxidation systems. Design of Thermal Oxidation Systems for Volatile Organic Compounds provides a reference to the entire design process, from conceptualization to operation and maintenance.
Design of the Unfinished: A New Way of Designing Leftovers Regeneration (The Urban Book Series)
by Luciano CrespiThe book aims to provide city administrators and planners with a tool to accompany them in experimenting with the regeneration of no longer used parts of the built heritage, called leftovers, by adopting an innovative approach. A new and radically different form of project, with the task of proposing a new aesthetic code and a style of thought aimed at creating shelters for nomads of the third millennium.In the design field, the 21st century will be destined to measure itself against temporariness and precariousness, also in terms of aesthetic practices. Based on this hypothesis, the text identifies the design of the unfinished as the perspective for attributing to the leftovers a character, which is representative of the conditions of the just begun century. Through a transdisciplinary, exhibition-like and reversible approach, the elements of degradation of the existing work are welcomed in the project as a "gift", to be translated into a syntax aimed at giving form and meaning to the internal and external environments, with the inclusion of "additional components".
Design, Analysis, and Interpretation of Genome-Wide Association Scans
by Daniel O. StramThis book presents the statistical aspects of designing, analyzing and interpreting the results of genome-wide association scans (GWAS studies) for genetic causes of disease using unrelated subjects. Particular detail is given to the practical aspects of employing the bioinformatics and data handling methods necessary to prepare data for statistical analysis. The goal in writing this book is to give statisticians, epidemiologists, and students in these fields the tools to design a powerful genome-wide study based on current technology. The other part of this is showing readers how to conduct analysis of the created study. Design and Analysis of Genome-Wide Association Studies provides a compendium of well-established statistical methods based upon single SNP associations. It also provides an introduction to more advanced statistical methods and issues. Knowing that technology, for instance large scale SNP arrays, is quickly changing, this text has significant lessons for future use with sequencing data. Emphasis on statistical concepts that apply to the problem of finding disease associations irrespective of the technology ensures its future applications. The author includes current bioinformatics tools while outlining the tools that will be required for use with extensive databases from future large scale sequencing projects. The author includes current bioinformatics tools while outlining additional issues and needs arising from the extensive databases from future large scale sequencing projects.
Design, Construction and Research Application of a Differential Electrochemical Mass Spectrometer (DEMS)
by Sean James AshtonSean Ashton's doctoral thesis, which he finished at the Technical University in Munich, describes the challenge of constructing a Differential Electrochemical Mass Spectrometer instrument (DEMS). DEMS combines an electrochemical cell with mass spectrometry via a membrane interface, allowing gaseous and volatile electrochemical reaction species to be monitored online. The thesis carefully introduces the fuel cell electrocatalyst development concerns before reviewing the pertinent literature on DEMS. This is followed by the presentation and discussion of the new extended design, including a thorough characterization of the instrument. The capabilities of the new setup are demonstrated in two research studies: The methanol oxidation reaction on Pt and PtRu catalysts, and the electrochemical corrosion of fuel cell catalyst supports. Despite both topics having long since been studied, new insights can be obtained through careful investigations with the new DEMS instrument that are of great, general interest. The thesis and the instrument thus show the way for future investigations in the field.
Design, Control and Application of Modular Multilevel Converters for HVDC Transmission Systems
by Remus Teodorescu Hans-Peter Nee Steffan Norrga Kamran Sharifabadi Lennart HarneforsDesign, Control and Application of Modular Multilevel Converters for HVDC Transmission Systems is a comprehensive guide to semiconductor technologies applicable for MMC design, component sizing control, modulation, and application of the MMC technology for HVDC transmission. Separated into three distinct parts, the first offers an overview of MMC technology, including information on converter component sizing, Control and Communication, Protection and Fault Management, and Generic Modelling and Simulation. The second covers the applications of MMC in offshore WPP, including planning, technical and economic requirements and optimization options, fault management, dynamic and transient stability. Finally, the third chapter explores the applications of MMC in HVDC transmission and Multi Terminal configurations, including Supergrids. Key features: Unique coverage of the offshore application and optimization of MMC-HVDC schemes for the export of offshore wind energy to the mainland. Comprehensive explanation of MMC application in HVDC and MTDC transmission technology. Detailed description of MMC components, control and modulation, different modeling approaches, converter dynamics under steady-state and fault contingencies including application and housing of MMC in HVDC schemes for onshore and offshore. Analysis of DC fault detection and protection technologies, system studies required for the integration of HVDC terminals to offshore wind power plants, and commissioning procedures for onshore and offshore HVDC terminals. A set of self-explanatory simulation models for HVDC test cases is available to download from the companion website. This book provides essential reading for graduate students and researchers, as well as field engineers and professionals who require an in-depth understanding of MMC technology.
Design, Development and Analysis of Lunar Crescent Visibility Criterion With Python
by Muhamad Syazwan Faid Mohd Saiful Nawawi Mohd Hafiz SaadonThe analysis of lunar crescent visibility criterion is vital in providing a comparative insight for predicting the visibility and suitability for Hijri calendar determination. While there have been previous attempts to measure the performance of lunar crescent visibility criterion, these attempts only apply to a singular analysis and not a comparative examination.Design, Development and Analysis of Lunar Crescent Visibility Criterion with Python explores the development of an analysis tool for lunar crescent visibility criterion using an integrated lunar crescent visibility database. The analysis tool, called HilalPy and HilalObs, was developed in the form of a Python library, so that it can be integrated into other software and webpages to enable deployment into various operating systems. This book will provide useful insights for the future development of lunar crescent visibility criterion, particularly for calendrical purposes.Key Features:● Presents an analysis tool for lunar crescent visibility based on an integrated lunar crescent report database.● Offers researchers and practitioners the capability to perform comparative analyses of the percentage of reliability in lunar crescent visibility criteria, thereby contributing to the construction of robust criteria for determining the Hijri calendar.● Provides a comprehensive resource for researchers, students, policymakers, and practitioners involved in the determination of the Hijri calendar.