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[null,"1.","Record Nr.",null,"UNINA9910787179603321"]
[null,null,"Autore",null,"Icke Vincent"]
[null,null,"Titolo",null,"Gravity does not exist : a puzzle for the 21st Century / / Vincent Icke [[electronic resource]]"]
[null,null,"Pubbl/distr/stampa",null,"Amsterdam : , : Amsterdam University Press, , 2014"]
[null,null,"ISBN",null,"90-485-1705-2"]
[{"$nulls":4},"90-485-1704-4"]
[null,null,"Descrizione fisica",null,"1 online resource (109 pages) : digital, PDF file(s)"]
[null,null,"Disciplina",null,"530"]
[null,null,"Soggetti",null,"Physics"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Title from publisher's bibliographic system (viewed on 08 Jan 2021)."]
[null,null,"Nota di contenuto",null,"Front matter -- Contents -- Foreword -- The Process of Measurement -- The Process of Progress -- Laws Ain't -- Motion -- Huygens's Relativity -- Acceleration -- Gravity -- Absoluteness Theory -- Gravity Does Not Exist -- Reflections -- Jes' Rollin' Along -- Feynman's Web -- A Twist to the Tale -- Questions for the 21st Century -- Small Moves, Ellie -- Thanks"]
[null,null,null,"Sommario/riassunto","Every scientific fact was born as an opinion about the unknown - a hypothesis. Opinion gradually becomes fact as evidence piles up to support a theory. But what if there are two theories, each of which has produced a myriad of things that correspond perfectly to the phenomena but can't be combined into one? One theory replaced the mystery of gravity with a precise model of space and time. The other theory replaced the mystery of matter with a description of quantum particles. As we understand our universe, we keep each in its own domain: space and time for very large things, particles for the very small ones. However, 13.8 billion years ago, those two incompatible domains belonged to a single realm. Who in the current or future generations of physicists will crack this seemingly impossible puzzle? This, contends the author, is not just a big question, but the biggest question in physics in our century. Combining Ickes's first-hand knowledge with a robust argument and intellectual playfulness, this fascinating book succeeds in making a notoriously difficult subject accessible to all readers interested in a better grasp of our universe."]
[null,"2.","Record Nr.",null,"UNINA9911006694803321"]
[null,null,"Titolo",null,"Cold spray technology / / Anatolii Papyrin ... [et al.]"]
[null,null,"Pubbl/distr/stampa",null,"Amsterdam ; ; Boston ; ; London, : Elsevier, 2007"]
[null,null,"ISBN",null,"1-280-70746-1"]
[{"$nulls":4},"9786610707461"]
[{"$nulls":4},"0-08-046548-X"]
[null,null,"Descrizione fisica",null,"1 online resource (341 p.)"]
[null,null,"Disciplina",null,"671.73"]
[null,null,"Soggetti",null,"Spraying"]
[{"$nulls":4},"Metals - Finishing"]
[{"$nulls":4},"Dielectrics - Finishing"]
[{"$nulls":4},"Gas dynamics"]
[null,null,"Lingua di pubblicazione",null,"Inglese"]
[null,null,"Formato",null,"Materiale a stampa"]
[null,null,null,"Livello bibliografico","Monografia"]
[null,null,null,"Note generali","Description based upon print version of record."]
[null,null,null,"Nota di bibliografia","Includes bibliographical references and index."]
[null,null,"Nota di contenuto",null,"Front Cover; Title Page; Copyright Page; Table of Contents; Preface; Chapter 1  Discovery of the Cold Spray Phenomenon and its Basic Features; 1.1 Supersonic Two-phase Flow around Bodies and Discovery of the Cold Spray Phenomenon; 1.1.1 Experimental setup and research techniques; 1.1.2 Structure of disturbances induced by reflected particles; 1.1.3 Interaction of a supersonic two-phase flow with the surface. Effect of coating formation; 1.2 Spraying with a Jet Incoming onto a Target; 1.2.1 Acceleration of particles in cold spray; 1.2.1.1 Diagnostic methods"]
[{"$nulls":4},"1.2.1.2 Experimental measurement of particle velocity1.2.2 Description of the setup; 1.2.3 Interaction of individual particles with the surface; 1.2.4 Transition from erosion to coating formation process. Critical velocity; 1.2.5 Effect of jet temperature on the deposition efficiency; Symbol List; References; Chapter 2  High-velocity Interaction of Particles with the Substrate. Experiment and Modeling; 2.1 Deformation of Microparticles in a High-velocity Impact; 2.1.1 Experimental setup and materials; 2.1.2 Measurement technique; 2.1.3 Statistical processing"]
[{"$nulls":4},"2.1.4 Results of microscopic studies2.1.5 Dependence of strain on impact velocity; 2.2 Spraying of the Initial Layer and its Influence on the Coating Formation Process; 2.2.1 Activation of the surface by the particles. Induction time.; 2.2.2 Critical parameters; 2.2.3 "]
[{"$nulls":4},"Determination of the mass of the first coating layer; 2.2.4 Steady stage of coating formation; 2.2.5 Kinetics of coating-mass growth; 2.2.6 Deposition efficiency; 2.2.7 Correction to the deposition efficiency; 2.3 Modeling of Interaction of Single Particles with the Substrate within the Framework of Mechanics of Continuous Media"]
[{"$nulls":4},"2.3.1 Impact of a spherical particle on a rigid substrate2.3.1.1 Impact of elastic particles; 2.3.1.2 Elastoplastic impact; 2.3.2 Impact of microparticles on deformable substrates; 2.4 Formation of a Layer of a High-velocity Flow in the Vicinity of the Microparticle-Solid Substrate Contact Plane; 2.4.1 Background; 2.4.2 Modeling of the high-velocity flow layer; 2.5 Particle-Substrate Adhesive Interaction under an Impact; 2.5.1 Estimates of the contact time and particle strain in a high-velocity impact; 2.5.2 Temperature of the particle-substrate contact area in a high-velocity impact"]
[{"$nulls":4},"2.5.2.1 Analytical modeling2.5.2.2 Results; 2.5.2.3 Numerical estimates; 2.5.3 Specific features of adhesive interaction of a non-melted particle with the substrate; 2.5.3.1 Governing equation for the number of bonds formed; 2.5.3.2 Heated volume; 2.5.3.3 Critical velocities; 2.5.3.4 Diagram of thermal states; 2.5.3.5 Volume of the material at the melting point; 2.5.3.6 Contact temperature; 2.5.3.7 Activation energy; 2.5.3.8 Adhesion energy; 2.5.3.9 Elastic energy; 2.5.3.10 Comparison of energies; 2.5.3.11 Adhesion probability; 2.5.3.12 Optimization problem; 2.5.3.13 Polydispersity"]
[{"$nulls":4},"2.5.4 Effect of surface activation on the cold spray process"]
[null,null,null,"Sommario/riassunto","The topic of this book is Cold Spray technology. Cold Spray is a process of applying coatings by exposing a metallic or dielectric substrate to a high velocity (300 to 1200 m/s) jet of small (1 to 50 μm) particles accelerated by a supersonic jet of compressed gas. This process is based on the selection of the combination of particle temperature, velocity, and size that allows spraying at the lowest temperature possible. In the Cold Spray process, powder particles are accelerated by the supersonic gas jet at a temperature that is always lower than the melting point of the material, resulting in"]