LEADER 00996nam a2200253 i 4500 001 991004291637007536 005 20231023152700.0 008 231023s20010000it b 001 0 ita 020 $a8845907554 040 $aBibl. Dip.le Aggr. Scienze Giuridiche - Sez. Centro Studi sul Rischio$bita 041 1 $aita$heng 082 0 $a510.1$221 100 1 $aHofstadter, Douglas R.$047775 245 10$aGödel, Escher, Bach: un'eterna ghirlanda brillante :$buna fuga metaforica su menti e macchine nello spirito di Lewis Carrol /$cDouglas R. Hofstadter ; [edizione a cura di Giuseppe Trautteur] 250 $a7. ed. 260 $aMilano :$bAdelphi,$c2001 300 $axxvii, 852 p. :$bill. ;$c24 cm 490 1 $aGli Adelphi ;$v12 500 $aOrig. tit.: Gödel, Escher, Bach: an eternal golden braid 650 0$aIntelligenza artificiale 700 1 $aTrautteur, Giuseppe 912 $a991004291637007536 996 $aGödel, Escher, Bach : un'eterna ghirlanda brillante$977750 997 $aUNISALENTO LEADER 05058nam 22006015 450 001 9910366583103321 005 20200706001038.0 010 $a3-030-22184-9 024 7 $a10.1007/978-3-030-22184-3 035 $a(CKB)4100000009040427 035 $a(MiAaPQ)EBC5851289 035 $a(DE-He213)978-3-030-22184-3 035 $a(EXLCZ)994100000009040427 100 $a20190814d2020 u| 0 101 0 $aeng 135 $aurcnu|||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aGeometry of Surfaces $eA Practical Guide for Mechanical Engineers /$fby Stephen P. Radzevich 205 $a2nd ed. 2020. 210 1$aCham :$cSpringer International Publishing :$cImprint: Springer,$d2020. 215 $a1 online resource (313 pages) 311 $a3-030-22183-0 327 $aPart 1. Part Surfaces -- Geometry of a Part Surface -- On a Possibility of Classification of Part Surfaces -- Part 2. On a Possibility of Classification of Part Surfaces -- Early Works in the Field of Contact Geometry of Surfaces -- An Analytical Method based on Second Fundamental Forms of the Contacting Part Surfaces -- Indicatrix of Conformity at Point of Contact of Two Smooth Regular Part Surfaces in the First Order of Tangency -- Plücker Conoid: More Characteristic Curves -- Possible Kinds of Contact of Two Smooth Regular Part Surfaces in the First Order of Tangency -- Part 3. Mapping of Contacting Part Surfaces -- ?-Mapping of Interacting Part Surfaces -- Generation of Enveloping Surfaces: General Consideration -- Generation of Enveloping Surfaces: Special Cases -- Conclusion -- Appendix A: Elements of Vector Calculus -- Appendix B: Elements of Coordinate Systems Transformations -- Appendix C: Change of Surface Parameters -- Appendix D: Closest Distance of Approach between Two Part Surfaces. 330 $aThis updated and expanded edition presents a highly accurate specification for part surface machining. Precise specification reduces the cost of this widely used industrial operation as accurately specified and machined part surfaces do not need to undergo costly final finishing. Dr. Radzevich describes techniques in this volume based primarily on classical differential geometry of surfaces. He then transitions from differential geometry of surfaces to engineering geometry of surfaces, and examines how part surfaces are either machined themselves, or are produced by tools with surfaces that are precisely machined. The book goes on to explain specific methods, such as derivation of planar characteristic curves based on Plücker conoid constructed at a point of the part surface, and that analytical description of part surface is vital for surfaces machined using CNC technology, and especially so for multi-axes NC machines. Providing readers with a powerful tool for analytical description of part surfaces machined on conventional machine tools and numerically controlled machines, this book maximizes understanding on optimal treatment of part surfaces to meet the requirements of today?s high tech industry. Expands explanation of reversibly-enveloping surfaces (RES), proposing a qualitative (analytical) approach of RES in this new edition; Provides an analytical description of part surfaces to be machined and elucidates the principal difference between differential geometry of surfaces and the engineering of part surfaces; Focuses the readers? attention on circular diagrams, simple but powerful analytic constructs, erected at a point of a part surface ; Illustrates a practical means of mapping of one part surface onto another part surface, with emphasis on a newly developed ?-Mapping of part surfaces. 606 $aEngineering mathematics 606 $aEngineering design 606 $aGeometry, Differential 606 $aSurfaces (Physics) 606 $aInterfaces (Physical sciences) 606 $aThin films 606 $aEngineering Mathematics$3https://scigraph.springernature.com/ontologies/product-market-codes/T11030 606 $aEngineering Design$3https://scigraph.springernature.com/ontologies/product-market-codes/T17020 606 $aDifferential Geometry$3https://scigraph.springernature.com/ontologies/product-market-codes/M21022 606 $aSurface and Interface Science, Thin Films$3https://scigraph.springernature.com/ontologies/product-market-codes/P25160 615 0$aEngineering mathematics. 615 0$aEngineering design. 615 0$aGeometry, Differential. 615 0$aSurfaces (Physics) 615 0$aInterfaces (Physical sciences) 615 0$aThin films. 615 14$aEngineering Mathematics. 615 24$aEngineering Design. 615 24$aDifferential Geometry. 615 24$aSurface and Interface Science, Thin Films. 676 $a510.24621 676 $a516.3024621 700 $aRadzevich$b Stephen P$4aut$4http://id.loc.gov/vocabulary/relators/aut$0914470 906 $aBOOK 912 $a9910366583103321 996 $aGeometry of Surfaces$92517759 997 $aUNINA