00820nam0-2200277 --450 991099839460332120250609214543.020250506d2000----kmuy0itay5050 baitaIT 001yyAd familiares[politica e privato nell'epistolario di B. Cairoli]a cura di Marziano Brignoli[S.l.]Arke edizioni2000384 p.24 cmCompl. del tit. in copEd. di 500 esempl. num.CAIROLI, BENEDETTOLETTERE E CARTEGGI945.0809219Brignoli,MarzianoITUNINAREICATUNIMARCBK9910998394603321945.084 BRIM 012025/1226FLFBCFLFBCAd familiares4390408UNINA05043nam 2200613 a 450 991100684320332120200520144314.01-283-61924-597866139316960-08-051967-9(CKB)111056552533184(EBL)1061932(OCoLC)818819934(SSID)ssj0000073135(PQKBManifestationID)11123307(PQKBTitleCode)TC0000073135(PQKBWorkID)10116586(PQKB)11393629(MiAaPQ)EBC1061932(EXLCZ)9911105655253318420121006d2000 uy 0engur|n|---|||||txtccrTribology in machine design /T.A. StolarskiOxford Butterworth-Heinemann20001 online resource (313 p.)Description based upon print version of record.0-585-47089-8 0-7506-3623-8 Includes bibliographical references and index.Front Cover; Tribology in Machine Design; Copyright Page; Table of Contents; Preface; Chapter 1. Introduction to the concept of tribodesign; 1.1. Specific principles of tribodesign; 1.2. Tribological problems in machine design; Chapter 2. Basic principles of tribology; 2.1. Origins of sliding friction; 2.2 Contact between bodies in relative motion; 2.3 Friction due to adhesion; 2.4. Friction due to ploughing; 2.5. Friction due to deformation; 2.6 Energy dissipation during friction; 2.7 Friction under complex motion conditions; 2.8. Types of wear and their mechanisms2.9. Sliding contact between surface asperities2.10. The probability of surface asperity contact; 2.11. Wear in lubricated contacts; 2.12 Relation between fracture mechanics and wear; 2.13. Film lubrication; References; Chapter 3. Elements of contact mechanics; 3.1. Introduction; 3.2. Concentrated and distributed forces on plane surfaces; 3.3. Contact between two elastic bodies in the form of spheres; 3.4. Contact between cylinders and between bodies of general shape; 3.5. Failures of contacting surfaces; 3.6. Design values and procedures; 3.7. Thermal effects in surface contacts3.8. Contact between rough surfaces3.9. Representation of machine element contacts; References; Chapter 4. Friction, lubrication and wear in lower kinematic pairs; 4.1. Introduction; 4.2. The concept of friction angle; 4.3. Friction in screws with a square thread; 4.4. Friction in screws with a triangular thread; 4.5. Plate clutch - mechanism of operation; 4.6. Cone clutch - mechanism of operation; 4.7. Rim clutch - mechanism of operation; 4.8. Centrifugal clutch - mechanism of operation; 4.9. Boundary lubricated sliding bearings; 4.10. Drives utilizing friction force4.11. Frictional aspects of brake design4.12. The role of friction in the propulsion and the braking of vehicles; 4.13. Tractive resistance; 4.14. Pneumatic tyres; 4.15. Tribodesign aspects of mechanical seals; References; Chapter 5. Sliding-element bearings; 5.1. Derivation of the Reynolds equation; 5.2. Hydrostatic bearings; 5.3. Squeeze-film lubrication bearings; 5.4. Thrust bearings; 5.5. Journal bearings; 5.6. Journal bearings for specialized applications; 5.7. Gas bearings; 5.8. Dynamically loaded journal bearings; 5.9. Modern developments in journal bearing design5.10. Selection and design of thrust bearings5.11. Self-lubricating bearings; References; Chapter 6. Friction, lubrication and wear in higher kinematic pairs; 6.1. Introduction; 6.2. Loads acting on contact area; 6.3. Traction in the contact zone; 6.4. Hysteresis losses; 6.5. Rolling friction; 6.6. Lubrication of cylinders; 6.7. Analysis of line contact lubrication; 6.8. Heating at the inlet to the contact; 6.9. Analysis of point contact lubrication; 6.10. Cam-follower system; References; Chapter 7. Rolling-contact bearings; 7.1. Introduction7.2. Analysis of friction in rolling-contact bearings""Tribology in Machine Design is strongly recommended for machine designers, and engineers and scientists interested in tribology. It should be in the engineering library of companies producing mechanical equipment.""Applied Mechanics ReviewTribology in Machine Design explains the role of tribology in the design of machine elements. It shows how algorithms developed from the basic principles of tribology can be used in a range of practical applications within mechanical devices and systems.The computer offers today's designer the possibility of greater stringenMachine designTribologyMachine design.Tribology.621.89621.89Stolarski T. A627319MiAaPQMiAaPQMiAaPQBOOK9911006843203321Tribology in machine design1213480UNINA04792nam 2200649Ia 450 991102017470332120200520144314.0978661072360797812807236051280723602978352760817135276081769783527608294352760829X(CKB)1000000000377389(EBL)482317(OCoLC)609855581(SSID)ssj0000302755(PQKBManifestationID)11947569(PQKBTitleCode)TC0000302755(PQKBWorkID)10274704(PQKB)11271799(MiAaPQ)EBC482317(Perlego)2784738(EXLCZ)99100000000037738920040206d2006 uy 0engur|n|---|||||txtccrThe mathematics of geometrical and physical optics the k-function and its ramifications /Orestes N. StavroudisWeinheim Wiley-VCHc20061 online resource (242 p.)Description based upon print version of record.9783527404483 3527404481 Includes bibliographical references and index.The Mathematics of Geometrical and Physical Optics; Acknowledgements; Introduction; Contents; Part I Preliminaries; 1 Fermat's Principle and the Variational Calculus; 1.1 Rays in Inhomogeneous Media; 1.2 The Calculus of Variations; 1.3 The Parametric Representation; 1.4 The Vector Notation; 1.5 The Inhomogeneous Optical Medium; 1.6 The Maxwell Fish Eye; 1.7 The Homogeneous Medium; 1.8 Anisotropic Media; 2 Space Curves and Ray Paths; 2.1 Space Curves; 2.2 The Vector Trihedron; 2.3 The Frenet-Serret Equations; 2.4 When the Parameter is Arbitrary; 2.5 The Directional Derivative2.6 The Cylindrical Helix2.7 The Conic Section; 2.8 The Ray Equation; 2.9 More on the Fish Eye; 3 The Hilbert Integral and the Hamilton-Jacobi Theory; 3.1 A Digression on the Gradient; 3.2 The Hilbert Integral. Parametric Case; 3.3 Application to Geometrical Optics; 3.4 The Condition for Transversality; 3.5 The Total Differential Equation; 3.6 More on the Helix; 3.7 Snell's Law; 3.8 The Hamilton-Jacobi Partial Differential Equations; 3.9 The Eikonal Equation; 4 The Differential Geometry of Surfaces.; 4.1 Parametric Curves; 4.2 Surface Normals; 4.3 The Theorem of Meusnier5.7 The Eikonal Equation. The Complete Integral5.8 The Eikonal Equation. The General Solution; 5.9 The Eikonal Equation. Proof of the Pudding; Part II The k-function; 6 The Geometry of Wave Fronts; 6.1 Preliminary Calculations; 6.2 The Caustic Surface; 6.3 Special Surfaces I: Plane and Spherical Wavefronts; 6.4 Parameter Transformations; 6.5 Asymptotic Curves and Isotropic Directions; 7 Ray Tracing: Generalized and Otherwise; 7.1 The Transfer Equations; 7.2 The Ancillary Quantities; 7.3 The Refraction Equations; 7.4 Rotational Symmetry; 7.5 The Paraxial Approximation7.6 Generalized Ray Tracing - Transfer7.7 Generalized Ray Tracing - Preliminary Calculations; 7.8 Generalized Ray Tracing - Refraction; 7.9 The Caustic; 7.10 The Prolate Spheroid; 7.11 Rays in the Spheroid; 8 Aberrations in Finite Terms; 8.1 Herzberger's Diapoints; 8.2 Herzberger's Fundamental Optical Invariant; 8.3 The Lens Equation; 8.4 Aberrations in Finite Terms; 8.5 Half-Symmetric, Symmetric and Sharp Images; 9 Refracting the k-Function; 9.1 Refraction; 9.2 The Refracting Surface; 9.3 The Partial Derivatives; 9.4 The Finite Object Point; 9.5 The Quest for C; 9.6 Developing the Solution9.7 ConclusionsIn this sequel to his book, ""The Optics of Rays, Wavefronts, and Caustics,"" Stavroudis not only covers his own research results, but also includes more recent developments. The book is divided into three parts, starting with basic mathematical concepts that are further applied in the book. Surface geometry is treated with classical mathematics, while the second part covers the k-function, discussing and solving the eikonal equation as well as Maxwell equations in this context. A final part on applications consists of conclusions drawn or developed in the first two parts of the book, discussiGeometrical opticsMathematicsPhysical opticsMathematicsGeometrical opticsMathematics.Physical opticsMathematics.535.32Stavroudis O. N(Orestes Nicholas),1923-27009MiAaPQMiAaPQMiAaPQBOOK9911020174703321The mathematics of geometrical and physical optics4418607UNINA01382nlm 2200301Ia 450 99663687100331620250109085308.019850710d1699---- uy |engUKdrcnu<<The>> Dangerous imposture of Quakerism, represented in a letter to a friendor [i.e. with] a brief discourse concerning the true nature and pernicious consequences of canting about religion, the second partby the same authorLondonPrinted for A. Baldwin ...1699Testo elettronico (PDF) ( [2], 8, 3-16 p.)Base dati testualeQuesto oggetto appare come D198 Variant (Wing 1st ed.) al rullo 888:22 e come J514B (Wing 2nd ed.) al rullo 1387:13.La copia alla bobina 1387:13 manca di frontespizio. e la seconda parte, "The true nature and pernicious consequences of canting about religion"", ed è stata catalogata separatamenteRiproduzione dell'originale nella Biblioteca BodleianaAltri contributori: Jeffery, John, 1647-1720.QuaccheriBNCF289.6092JEFFERY,John1647-1720.1002489ITcbaREICAT996636871003316EBERDangerous imposture of Quakerism, represented in a letter to a friend4308976UNISA