Mohammad Hossein Keshavarz – författare

Predictive Modeling in Polymer Science: Properties and Performance introduces the latest methods for predicting polymer properties and addressing cost-effectiveness and desirable properties for product design and production. The book discusses a range of prediction methods and models, providing a comprehensive overview of polymer behaviors and properties essential for material performance, such as flammability properties, solubility, intrinsic viscosity, glass transition temperatures, and refractive index. Readers will gain a deep understanding of predictive modeling techniques that enable the design of polymers with desired properties, saving time and resources. This book provides a comprehensive guide for scientists, engineers, and industry professionals interested on predicting and optimizing polymer properties for material design.Analyzes different theoretical models to guide readers toward the most effective methods for achieving desired polymer propertiesFeatures computational models for determining the properties of polymers, especially those that haven't been synthesized or are newly synthesizedReviews strengths and weaknesses of different computational models

Sensitivity of Energetic Materials: Prediction and Measurement of Shock, Impact, Friction, and Spark Sensitivity provides an in-depth exploration of the sensitivity of energetic materials, including how compounds such as explosives, propellants, and pyrotechnics respond to various external stimuli (sparks, shocks, impacts, and friction). Starting from foundational principles, the book systematically builds toward advanced experimental techniques and state-of-the-art computational models that predict material sensitivity and behavior. Its primary objectives are to synthesize the latest research, present practical testing methods, and deliver predictive tools that support safer, more innovative work with energetic materials, making it an essential reference for the field. The topic is both significant and timely, given the ongoing development of new energetic compounds, the need for rigorous safety standards, and the growing application of computational and machine learning methods in analytical chemistry and material science. Key themes include the underlying science of sensitivity, experimental protocols, computational and machine learning models, and real-world case studies addressing both established and emerging materials (including nitramines, polynitro arenes, and ionic liquids). The book’s structure encompasses theoretical background, measurement techniques, predictive modeling, and practical applications. Its target audience includes academic researchers, postgraduate students, and industry professionals in chemistry, materials science, engineering, defense, aerospace, mining, and industrial safety. By bridging theory and practice, and addressing inconsistencies in testing and data management, the book fills a critical gap in safety and innovation and empowers users to solve real-world problems efficiently, improve safety standards, and stay at the forefront of this rapidly evolving field.Provides a comprehensive, up-to-date resource blending fundamental principles, testing protocols, and computational models for predicting energetic material sensitivityIncludes clear, stepwise testing protocols, troubleshooting guides, and systematic data presentation to facilitate cross-material comparison and practical applicationExplores real-world case studies that illustrate practical implementation and impact of sensitivity testingEmphasizes safety, innovation, and future research opportunities, with contributions from international experts to ensure broad relevance and methodological diversity.Bridges theory and practice, offering illustrative diagrams and detailed workflows to support learning and application for researchers and professionals

The combustion properties of organic materials are used to assess their safety specifications. This knowledge is necessary to avoid potentially disastrous fires. The experimental determination of the combustion properties of a new organic compound is laborious and sometimes even impossible. This book describes methods for the determination and prediction of the combustion properties of organic compounds, along with some examples and exercises.

This book discusses methods for the assessment of energetic compounds through heat of detonation, detonation pressure, velocity and temperature, Gurney energy and power. The authors focus on the detonation pressure and detonation velocity of non-ideal aluminized energetic compounds. This 2nd Edition includes an updated and improved presentation of simple, reliable methods for the design, synthesis and development of novel energetic compounds.

For a chemist who is concerned with the synthesis of new energetic compounds, it is essential to be able to assess physical and thermodynamic properties, as well as the sensitivity, of possible new energetic compounds before synthesis is attempted. Various approaches have been developed to predict important aspects of the physical and thermodynamic properties of energetic materials including (but not limited to): crystal density, heat of formation, melting point, enthalpy of fusion and enthalpy of sublimation of an organic energetic compound. Since an organic energetic material consists of metastable molecules capable of undergoing very rapid and highly exothermic reactions, many methods have been developed to estimate the sensitivity of an energetic compound with respect to detonationcausing external stimuli such as heat, friction, impact, shock and electrostatic discharge. This book introduces these methods and demonstrates those methods which can be easily applied.

The combustion properties of organic materials are used to assess their safety specifications. This knowledge is necessary to avoid potentially disastrous fires. The experimental determination of the combustion properties of a new organic compound is laborious and sometimes even impossible. This book describes methods for the determination and prediction of the combustion properties of organic compounds, along with some examples and exercises. This 2nd Edition includes an updated and improved presentation of the applicationnof different new models for reliable prediction of diverse aspects of flammability of organic compounds.

Due to the advances of various methods for the prediction of toxicity of organic compounds and ionic liquids (ILs), it is necessary to review these methods for scientists and students. It is essential to compare the advantages and shortcomings of these methods. Since many organic compounds and ILs are synthesized each year, this book introduces suitable models for the assessment of their toxicities. This book reviews the best predictive methods for the prediction of toxicity of organic compounds and ILs, which were derived by in vitro or in vivo experiments. Different available quantitative structure‐toxicity relationship (QSTR) models based on various descriptors have been discussed to predict toxicity parameters such as LD50 (50% lethal dose), EC50 (the concentration of the desired IL that produces mortality of 50 percent of the bacterial population) and log(IGC50-1) (logarithm of 50% growth inhibitory concentration of T. pyriformis) of various classes of organic compounds and ILs. The reliability of these methods is compared and discussed. Each chapter contains some complimentary problems with their answers, which can improve the experience of students and researchers. The introduced subjects are suitable for advanced students in chemistry, biochemistry, medicinal chemistry, and chemical engineering.

This publication addresses the critical need for chemists engaged in the synthesis of new energetic compounds to comprehensively evaluate physical and thermodynamic properties, as well as sensitivity to various stimuli. The book delves into established and emerging methods for predicting key properties such as crystal density, heat of formation, and melting points, providing a thorough understanding of the subject matter.In this revised edition, we present updated insights across all chapters, exploring topics like enthalpy and entropy of fusion, heat of sublimation, and correlations among different types of sensitivities. Additionally, three new chapters focus on the assessment of energetic metal-organic complexes, including energetic metal-organic frameworks (MOFs) and energetic polymers, alongside strategies for predicting properties of novel energetic compounds.This book is an essential resource for researchers and practitioners in the field, offering practical techniques and a solid foundation for advancing the synthesis and application of energetic materials. Its relevance extends to both academic and industrial settings, making it a vital addition to the literature on energetic compounds. This book uniquely integrates theoretical methods with practical applications for predicting properties of energetic compounds.It addresses the gap in understanding the sensitivity and stability of new materials.Key features include updated methodologies, new chapters on metal-organic complexes, and comprehensive coverage of critical properties.

This ground-breaking book offers an in-depth exploration of the multifaceted nature of politeness and impoliteness in Persian, shedding light on how these communicative strategies are deeply woven into the sociocultural fabric of Iranian society. Anchored in rigorous scholarship, it examines the ways in which Persian speakers manage face, navigate social hierarchies, and express solidarity or dissent through language. From the ritualized and often paradoxical practice of ta’ārof to subtle pragmatic cues that signal respect, resistance, or relational alignment, the chapters reveal how linguistic behavior reflects broader cultural values and social expectations. Bringing together leading scholars and experienced practitioners in the fields of pragmatics, sociolinguistics, and cultural studies, the volume offers a rich interdisciplinary perspective on Persian interactional norms. It investigates both everyday exchanges and institutional discourse, highlighting the dynamic interplay between language, identity, and power. By situating Persian politeness phenomena within a global framework, the book challenges Western-centric models and contributes to a more inclusive understanding of linguistic etiquette and interpersonal communication. It is an essential resource for scholars, educators, and students in the fields of pragmatics, sociolinguistics, anthropology, and cultural linguistics, in particular those interested in the politeness features of non-Western languages and the cultural dimensions of discourse.