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Jornais Acesso aberto

N. GANGULEE., JOHN H. ELLISON., A COMMONER OF GRASMERE., C. E. BARNES., F. W. GOLDSTONE, , REGINALD BERKELEY., By CALLISTHENES., FROM OUR RHINELAND CORRESPONDENT., RICHARD TEMPLE., PERCIVAL HART., C. LEONARD WOOLLEY., CECIL J. LONGCROFT., A. W. CARTER. Keston, Kent., A. H. BROWN., E. K. HOUSE, Chairman of the Incorporated Society of Auctioneers and Landed Property Agents.,

... Case. Further Evidence In De Kay's Defence., Rotor Principle Patent Claims., More Robberies. Disguised Thief's ... The Preparation Of Incubators., The Progress Of Science. Rotor Ships. Dr. Flettner's Invention, Bank Of England. ...

1924 - Gale Group | TDA

Artigo

H. L. Garbarino, Eric T. B. Gross,

... is the operation of a 3-phase wound-rotor induction motor at half of synchronous speed, and it is obtained by unbalancing the rotor circuit. If the motor is started with one rotor phase opened or with rotor impedances greatly unbalanced, it will accelerate to half ... found to be in good agreement. The unbalanced rotor impedances cause unbalanced rotor currents of slip frequency, and balanced stator currents ... great as the rated torque for a balanced rotor. It may be desirable to operate an induction ...

Tópico(s): Machine Fault Diagnosis Techniques

1950 - Institute of Electrical and Electronics Engineers | Transactions of the American Institute of Electrical Engineers

Artigo Acesso aberto

E. Henriot, E. Huguenard,

Sommaire.-Un rotor tournant à très grande vitesse doit résister à la force centri- fuge, qui détermine des efforts aisément calculables, ... chocs.Nous avons utilisé la suspension totale du rotor sur une nappe uniquement gazeuse, ce qui permet ... que la résis- tance des matériaux de ce rotor à la seule force centrifuge.Principe de la ... qui est à la fois divergent et tourbillonnaire.Rotors.2014 De petits rotors, semblables à de petites toupies de forme aplatie, ... qui dépassent 11 000 t: s.Ces petits rotors entrainent un miroir de 5 mm de côté ...

Tópico(s): Experimental and Theoretical Physics Studies

1927 - EDP Sciences | Journal de Physique

Artigo Revisado por pares

David F. Waugh, David A. Yphantis,

Moving rotor temperatures may be measured with a precision of ±0.03°C and an accuracy of 0.1° ... method does not use physical contact with the rotor but utilizes the infrared radiation from the rotor. A reference temperature is maintained in a mass ... placed near and shielding the base of the rotor. A copper disk, shielded also by the reference block, assumes a temperature between rotor and reference block temperatures through radiation exchange. The ... 0.72 of that between reference block and rotor. On acceleration the rotor cools, the opposite effect ...

Tópico(s): Heat Transfer and Numerical Methods

1952 - American Institute of Physics | Review of Scientific Instruments

Jornais Acesso aberto

From Our Racing Correspondent, FROM OUR RACING STAFF, From a Golf Correspondent, FROM OUR ASSOCIATION FOOTBALL CORRESPONDENT, FROM A STAFF REPORTER, FROM OUR GOLF CORRESPONDENT, FROM OUR YACHTING CORRESPONDENT, FROM OUR SPECIAL CORRESPONDENT, By Oliver Edwards, From Our New York Drama Critic-WARSAW, From Our EDUCATION Correspondent's NOTEBOOK, From our Music Critic-EDINBURGH, SEPT. 1, FROM OUR OWN CORRESPONDENT, From Our Correspondent, From Our Special Correspondent-LIVERPOOL, SEPT. 1, From Our Special Correspondent, From Our Naval Correspondent, From Our Labour Staff, FROM OUR SCOTTISH CORRESPONDENT, FROM OUR CORRESPONDENT, From Our Agricultural Correspondent, From Our Correspondent-SALISBURY, SEPT. 1, FROM OUR DIPLOMATIC CORRESPONDENT, From Our Own Correspondent-NEW YORK, SEPT. 1, By Monitor, From Our Own Correspondent-WASHINGTON, SEPT. 1, From Our Latin America Correspondent-RIO DE JANEIRO, From Our Own Correspondent-BONN, SEPT. 1, From Our Correspondent-ATHENS, SEPT. 1, From Our Own Correspondent-DELHI, SEPT. 1, From Our Correspondent-KARACHI, SEPT. 1, FROM OUR SHIPPING CORRESPONDENT, From Our Diplomatic Correspondent, From Our Northern Correspondent-MANCHESTER, SEPT. 1, FROM OUR CITY EDITOR, ANTHONY COURTNEY. House of Commons, Sept. 1., RICHARD SADLER. Halfpehny Furze, Mill Lane, Chalfont St. Giles, Buckinghamshire., D. C. PARKER. 7 Ainslic Place, Edinburgh 3., PAUL EINZIG. 120 Clifford's Inn, E.C.4, Sept. 1., RALPH HAWTREY. 29 Argyll Road, W.8, Aug. 31., A. W. HUNTER. St. Austell, Hill Road, Theydon Bois, Essex., DOROTHY WINTON. The Old Workhouse, Harefield, Middlesex., RAYMOND GLASCOCK. Little Grazings, Church Lane, Arborfield, Berkshire., From Our Special Correspondent-CAMBRIDGE, SEPT. 1, JOHN H. HALLETT. New House, Slindon, Arundel, Aug. 31., E. CONNELL. 106 Clapton Mount, Halifax, Aug. 30., GEOFFREY DE FRETTAS. House of Commons, Aug. 30., FROM OUR EQUESTRIAN CORRESPONDENT, FROM A CORRESPONDENT, FROM OUR CHESS CORRESPONDENT, By Our City Editor, From Our European Economic Correspondent-PARIS, SEPT. 1, BY OUR CITY STAFF, FROM A SPECIAL CORRESPONDENT, From Our Correspondent-NEW YORK, , FROM OUR AERONAUTICAL CORRESPONDENT, FROM LLOYD'S, From Our Correspondent-NEW YORK, SEPT. 1,

... Up To 10s. Sterling Stronger, Spray Painting Of Rotor Blades, Credit Squeeze Hits Car H.P. Sales, ...

1965 - Gale Group | TDA

Artigo Revisado por pares

Bernard Kirtman,

... energy levels of molecules containing a symmetric internal rotor has been re-examined theoretically. The complete Hamiltonian ... coupling of internal and over-all rotation. Symmetric rotors, slightly asymmetric rotors, and asymmetric rotors with relatively high barriers to internal rotation are ... three types of molecule are given. The symmetric rotor formula is identical in form to Kivelson's ... empirical constants must be interpreted differently. A symmetric rotor analysis was done on CH3SiF3 and CD3SiF3. K→ ...

Tópico(s): Atmospheric Ozone and Climate

1962 - American Institute of Physics | The Journal of Chemical Physics

Artigo

J. W. Lund, F. K. Orcutt,

... experimental investigation of the unbalance vibrations of a rotor are presented. The analysis applies to a general rotor-bearing system in which the dynamic bearing forces ... four spring coefficients and four damping coefficients. The rotor can be represented as either a lumped or ... In general, the unbalance whirl motion of the rotor will be elliptical. The analysis has been programmed ... for comparison with the experimental data. The test rotor is a uniform, flexible shaft with heavy wheels ... at the ends and in the middle. The rotor is supported in two silicone fluid-lubricated, tilting- ...

Tópico(s): Gear and Bearing Dynamics Analysis

1967 - ASM International | Journal of Engineering for Industry

Jornais Acesso aberto

Andrew Robson, Simon Chase, Andrew Pierce, Roger Davis, DJM, David Brown, James Moore, Adam Sherwin Media Reporter, Rennie Fritchie, Jamie Wring, Frances Gibb Legal Editor, Sarah Potter, Simon Barnes, Magnus Linklater, David Wilson, Carol Midgley and Robbie Millen, Richard Hobson, Victor Ross, Ivo Tennant, Michael Evans Defence Editor, Philip Howard, David Chater, James Bone, Nic Hopkins, Clive Davis, Richard Irving, Gabrielle Starkey, Bob Stanley, Barbara Ellen, Jeremy Whittle, Geoff Brown, Joe Joseph, Ben Webster Transport Correspondent, Valerie Elliott Countryside Editor, Richard Cretan, Tom Baldwin and Dominic Kennedy, Thrasy Petropoulos, Dumeetha Luthra, John Redwood, Jennai Cox Fitness Editor, Jack Malvern, Steve Bird, Debra Craine, Roger Bramble, E. Sheridan, Norman Harris, Daniel Finkelstein, Dan Sabbagh, Dalya Alberge Arts Correspondent, Martin Barrow, Richard Ford Home Correspondent, Stephen Farrell, Rodney Milnes, Mark Matfield, Jenny MacArthur, Anatole Kaletsky, Roland Watson, Mark Court, Caroline Merrell Banking Correspondent, Russell Kempson, Vanora Bennett, Anthony Lewis, Geoffrey Alderman, John Woodcock, David Lister, Mark Henderson Science Correspondent, Christopher Martin-Jenkins, Paul Sexton, Ann Treneman, Simon de Bruxelles, Geoffrey Dean, Hannah Hennessy, Neil Harman Tennis Correspondent, Raymond Keene, Adam Sage, Fiona Morrow, Sean MacAulay, Philip Whiteley, Greg Hurst Parliamentary Correspondent, Imogen Edwards-Jones, Neville Scott, Bronwen Maddox, Russell Hotten, Helen Nugent, Anthony Browne Environment Editor, Christopher Martin-Jenkins Chief Cricket Correspondent, Dalya Alberge and Richard Ford, John Carr, Gavin Reid, Nick Hasell, Dalya Alberge, Jeremy Pemberton, Russell Hotten and Lea Paterson, John Allison, John Goodbody, Philip Webster Political Editor, Gabriella Gamini South America Correspondent, Craig Lord, Des Dearlove, Harry Massey, Chris McGrath, Russell Jenkins, Michael Austin, Alan Lee, Peter Riddell, Ben MacIntyre, Ashis Ray, Veronica Goulder, Tony Dawe, David Charter Chief Political Correspondent, Graham Searjeant, W. Garrett, Martin Waller, Michael Horsnell, Bob Bury, Gary Duncan and Lea Paterson, Mark Baldwin, Nigel Hawkes Health Editor, Ashling O'Connor, Rob Smyth, Shaun Pollock, Dr Thomas Stuttaford, Stephen Dalton, David Powell, Tim Lawson-Cruttenden, Richard Morrison, James Christopher, Alice Miles, Abigail Rayner, Craig Lord, Alexandra Frean and Daniel McGrory, Chris McDonnell, Alasdair Murray, Edward Gorman Sailing Correspondent, Robin Shepherd,

... Mittal 'paid millions to go-between' In Brief Rotor failure New drug rules Dowler denial Best loved ...

2002 - Gale Group | TDA

Artigo

E. J. Gunter,

... linear flexibly mounted rolling-element bearings on dynamic rotor unbalance response. The system analyzed is treated as a general four degree of freedom unbalanced rotor mounted on damped flexible supports and includes rotor gyroscopic effects. The rotor equations of motion are solved for synchronous precession ... wide range of speeds for various support conditions. Rotor performance curves on bearing amplitude, forces transmitted, phase ... of support damping are computer plotted to illustrate rotor and bearing performance over a wide range of ...

Tópico(s): Magnetic Bearings and Levitation Dynamics

1970 - ASM International | Journal of Lubrication Technology

Livro

Springer Link

Jornais Acesso aberto

Ernest Newman, Henry Longhurst, J. J. R. Trethowan, Iain MacLeod M. P., Elizabeth Chanteau, Mary Dunbar, Mary Dunn, Elizabeth Nicholas, W. Hugh Turnbull, Harold Hobson, Tina Spencer Knott, Rodney Campbell The Sunday Times Representative, Michael Manning The Sunday Times Representative, Gladys Cooper, Roger Mortimer, Norman Crump The Sunday Times City Editor, Hans Nachod, S. C. Griffith, P. J. Tester, Philip F. Dyer Editor, John Fisher The Sunday Times Yachting Correspondent, Antony Terry The Sunday Times Representative, Alastair M. Dunnett, Sir Charles Colston, D. R. Gent, Ritchie McEwen The Sunday Times Representative, George Schwartz, Peter Kirk, Patrick Nicholson The Sunday Times Representative, K. H. Wachter, Dorothy Reeve-Flaxman, Maurice Wiggin, Rt. Hon. Oliver Lyttelton M. P., J. Campbell Lecturer, A. Adamson, Cyril Connolly, Christopher Hollis M. P., A. S. Duncan-Jones, Viscount Cecil, Cyril Beaumont, W. P. MacArthur, Dilys Powell, Stanley Rubinstein, Lieut-Gen Sir Brian Horrocks, Fisher, Frank Oliver The Sunday Times Representative, Charles E. Gayton The Sunday Times Political Correspondent, J. M. Hermon, Gerald Pawle, Alison Uttley, Richard Strout, Roland Allen, Sir Stephen Tallents, John Russell, C. P. Snow, F. C. Eeles Secretary, R. C. K. Ensor, Theo A. Stephens,

... of Wight By a Sunday Times Correspondent: Twin-rotor helicopters in "danse macabre" The Sunday Times Crossword ...

1952 - Gale Group | Sunday Times HA GDA

Artigo

J.A. Soper, A.R. Fagg,

... of a new form of turbogenerator using a rotor winding of two sections, in X formation, controlling ... requirements separately.The performance of a conventionally wound rotor turbogenerator (c.w.r.) of 30MW size, described ... is compared with that of a divided-winding-rotor (d.w.r.) arrangement (CEGB patent application 2240/ ... power and reactive output satisfactorily, without altering the rotor position in relation to the generator air-gap ... 32s when Qu = − 0.225 p.u. and rotor angle = 70°; 0.2s when Qu = − 0.6 p.u. and rotor angle = 100°; and less than 0.1 s ...

Tópico(s): Islanding Detection in Power Systems

1969 - Institution of Electrical Engineers | Proceedings of the Institution of Electrical Engineers

Livro

Springer Link

Artigo Revisado por pares

F. X. Caradonna, Morris P. Isom,

... in shock strength with decreasing aspect ratio. ELICOPTER rotor blades that can operate at high tip Mach ... and smaller angles of attack. The design of rotor blade geometries that can support a transonic flowfield ... pressure distribution on the blade for a specified rotor geometry and advance ratio. However, the unsteady aerodynamic environment of a lifting rotor that is operating at or near the critical ... details of the flow about a lifting, hovering rotor operating in an essentially incompressible flow. Our purpose ...

Tópico(s): Gas Dynamics and Kinetic Theory

1972 - American Institute of Aeronautics and Astronautics | AIAA Journal

Artigo

M. D. Rabinowitz, E. J. Hahn,

... operation of a centrally preloaded single mass flexible rotor supported in squeeze film bearing dampers is examined ... exhibiting the effect of relevant system parameters on rotor excursion amplitudes and unbalance transmissibilities for both pressurized and unpressurized lubricant supply. Hence, the influence of rotor flexibility, rotor mass distribution, rotor speed, bearing dimensions, lubricant viscosity, support flexibility can be readily determined, allowing for optimal rotor bearing system design. It is shown that with ...

Tópico(s): Gear and Bearing Dynamics Analysis

1977 - ASM International | Journal of Engineering for Power

Artigo Revisado por pares

R. K. Amiet,

... calculate the instantaneous sound spectrum produced by the rotor at each azimuthal rotor position, and this instantaneous spectrum can be averaged over the azimuthal rotor position to find an averaged far-field sound ... the different amount of retarded time that the rotor spends at each azimuthal rotor position. Further discussion of this point is given ... turbulent eddy is chopped by more than one rotor blade, the blade-toblade correlation leads to narrow-band noise peaked around the rotor harmonics. The far-field sound for an airfoil ...

Tópico(s): Vehicle Noise and Vibration Control

1977 - American Institute of Aeronautics and Astronautics | AIAA Journal