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Časopis Ukorak S Vremenom Br. 62
www. upss.hr [email protected] www. upss.hr [email protected] 6. prosinca 2020. 6. prosinca 2020. glasilo glasilo br. br. 62 62 UDRUGA POMORSKIH STROJARA SPLIT i POMORSKI FAKULTET u SPLITU Časopis "UKORAK S VREMENOM“ 6. prosinca 2020. glasilo br. 62 Izdavač: UDRUGA POMORSKIH STROJARA – SPLIT MARINE ENGINEER'S ASSOCIATION – SPLIT CROATIA Suizdavač: 32 godina izlaženja Aja 2 Ukorak s vremenom br. 62 UDRUGA POMORSKIH STROJARA SPLIT i POMORSKI FAKULTET u SPLITU BRODOSPAS d.o.o. – Split PODUPIRUĆE TVRTKE I USTANOVE Glasilo Udruge pomorskih strojara BRODOSPAS d.o.o. – Split Split (UPSS) GLOBTIK EXPRESS Agency - Split (Marine Engineer's Association Split) HRVATSKI REGISTAR BRODOVA www.upss.hr [email protected] – Split Adresa: Udruga Pomorskih strojara Split, JADROPLOV d.d. – Split 21000 SPLIT, Dražanac 3A, p.p. 406 KRILO SHIPPING Co. - Jesenice Tel./Faks/Dat.: (021) 398 981 Žiro-račun: FINA 2330003- 1100013277 ❖ PLOVPUT d.o.o. – Split OIB: 44507975005 Sveučilište u Splitu Matični broj; 3163300 ISBN 1332-1307 POMORSKI FAKULTET Za izdavača: Frane Martinić, predsjednik Sveučilište u Splitu UPSS-a i Pomorski fakultet u Splitu F E S B – FAKULTET ELEKTRO- Glasilo uređuje 'Uređivački savjet': Frane Martinić, Neven Radovniković, Vinko Zanki, izv. TEHNIKE, STROJARSTVA I prof., dr. sc. Gorana Jelić Mrčelić i Branko Lalić, mag. ing. BRODOGRADNJE Izvršni urednik i korektor: Boris Abramov Naslovna stranica: Nastja Radić POMORSKA ŠKOLA SPLIT Glasilo br. 62 - RR NAVIS CONSULT – ured Rijeka Split, 6. prosinca 2020. Glasilo više ne izlazi u tiskanom obliku, već se objavljuje SINDIKAT POMORACA HRVATSKE na našoj web stranici: www.upss.hr ZOROVIĆ MARITIME SERVICES Poča sni članovi udruge: – Rijeka dr. -
Speed Superconducting Maglev
Laurence E. (Larry) Blow President, MaglevTransport, Inc. www.maglevtransport.com High Speed Rail World 2010 Conference Washington, D.C. April 19-22, 2010 1. Too expensive 2. Just another train 3. Replaces automobiles 4. Still experimental 5. Not safe or reliable 6. Can’t carry freight 7. Can’t do anything a train can’t do 8. Incompatible with rail 9. Magnetic fields are harmful 10. It’s noisy and “belches” CO2 UK Ultraspeed analysis suggests otherwise • Maglev and rail data from UK Ultraspeed website: www.500kmh.com UK capital cost analysis suggests otherwise Operating costs tell a similar story Infrastructure cost comparisons are illuminating Maintenance cost comparisons favor maglev Dictionary usage of “train” can be misleading It’s not “a line of railway cars coupled together and drawn by a locomotive,” but it’s close to “a procession (of wagons, mules, camels or vehicles) traveling together in single file.” Maglev’s more like an airplane without wings Lightweight / aerospace materials, pressurized car bodies Sleek, futuristic body shapes without overhead wires, etc. It’ll never happen -- we love our cars too much Studies since 1989-1991 show this effect TRB’s “In Pursuit of Speed” did good work Maglev must always be faster than autos Real competition is the short-haul air market Not a myth for many years, since maglev testing started in the 1970s, but: 2001: Contracts signed for construction in China 2003: Shanghai airport connector opens 2009: 210,000 one-way trips taken since 2004 Not a myth for many years, -
Unit VI Superconductivity JIT Nashik Contents
Unit VI Superconductivity JIT Nashik Contents 1 Superconductivity 1 1.1 Classification ............................................. 1 1.2 Elementary properties of superconductors ............................... 2 1.2.1 Zero electrical DC resistance ................................. 2 1.2.2 Superconducting phase transition ............................... 3 1.2.3 Meissner effect ........................................ 3 1.2.4 London moment ....................................... 4 1.3 History of superconductivity ...................................... 4 1.3.1 London theory ........................................ 5 1.3.2 Conventional theories (1950s) ................................ 5 1.3.3 Further history ........................................ 5 1.4 High-temperature superconductivity .................................. 6 1.5 Applications .............................................. 6 1.6 Nobel Prizes for superconductivity .................................. 7 1.7 See also ................................................ 7 1.8 References ............................................... 8 1.9 Further reading ............................................ 10 1.10 External links ............................................. 10 2 Meissner effect 11 2.1 Explanation .............................................. 11 2.2 Perfect diamagnetism ......................................... 12 2.3 Consequences ............................................. 12 2.4 Paradigm for the Higgs mechanism .................................. 12 2.5 See also ............................................... -
Superconducting Maglev(Scmaglev)
THE REVIEW SUPERCONDUCTING MAGLEV (SCMAGLEV) , http: // jr-central.co.jp/ 17.05 SUPERCONDUCTING MAGLEV (SCMAGLEV) e Superconducting Maglev -Next Generation Transportation System e Superconducting Maglev (SCMAGLEV) is an internationally acclaimed, cutting-edge technology unique to Japan. Unlike conventional railway systems that rely on adhesion between wheel and rail for movement, the Superconducting Maglev is a contactless transportation system that accelerates and decelerates by the magnetic force generated between the onboard superconducting magnets and ground coils, which enables a stable ultra-high speed operation at the speed of 311mph. Research of a totally new levitated transportation system commenced in 1962, and running tests on the Yamanashi Maglev Line began in 1997. Since then, a wide range of tests were conducted and cleared. With these test results, the Maglev Technological Practicality Evaluation Committee (MTPEC) under the Japanese Ministry of Land, Infrastructure, Transport and Tourism (MLIT) has evaluated Superconducting Maglev technology at each stage. In July 2009, MTPEC acknowledged that the technology has been established comprehensively and systematically, which makes it possible to draw up detailed specications and technological standards for revenue service. In December 2011, the technical standards of the Superconducting Maglev were enacted by the Japanese Minister of Land, Infrastructure, Transport and Tourism. In August 2013, the Yamanashi Maglev Line was fully renewed and extended to 42.8km (26.6miles), and is currently operating using Series L0 (L Zero). is leading edge Japanese technology is the next generation of super fast train travel. e Principles of the Superconducting Maglev System How the Superconducting Maglev runs at ultra high-speed? In order to operate at ultra high-speed, the Superconducting Maglev levitates 10cm (about 3.9in) above ground by the magnetic force Electric resistance generated between the onboard Superconducting Magnets and ground coils. -