905 resultados para musicians and conductors
Resumo:
Engineering of devices and systems such as magnets, fault current limiters or cables, based on High Temperature Superconducting wires requires a deep characterization of the possible degradation of their properties by handling at room temperature as well as during the service life thus establishing the limits for building up functional devices and systems. In the present work we report our study regarding the mechanical behavior of spliced joints between commercial HTS coated conductors based on YBCO at room temperature and service temperature, 77 K. Tensile tests under axial stress and the evolution of the critical current and the electric resistance of the joints have been measured. The complete strain contour for the tape and the joints has been obtained by using Digital Image Correlation. Also, tensile tests under external magnetic field have been performed and the effect of the applied field on the critical current and the electric resistance of the joints has been studied. Additionally, fatigue tests under constant cyclic stress and loading-unloading ramps have been carried out in order to evaluate the electromechanical behavior of the joints and the effect of maximum applied stress on the critical current. Finally, a preliminary numerical study by means of the Finite Element Method (FEM) of the electromechanical behavior of the joints between commercial HTS is presented.
Resumo:
Materials with high electrical conductivity and optical transparency are needed for future flat panel display, solar energy, and other opto-electronic technologies. InxCd1-xO films having a simple cubic microstructure have been grown on amorphous glass substrates by a straightforward chemical vapor deposition process. The x = 0.05 film conductivity of 17,000 S/cm, carrier mobility of 70 cm2/Vs, and visible region optical transparency window considerably exceed the corresponding parameters for commercial indium-tin oxide. Ab initio electronic structure calculations reveal small conduction electron effective masses, a dramatic shift of the CdO band gap with doping, and a conduction band hybridization gap caused by extensive Cd 5s + In 5s mixing.
Resumo:
Mode of access: Internet.
Resumo:
Mode of access: Internet.
Resumo:
"Philharmonic edition."
Resumo:
[pt. 1] Compositions for piano -- [pt. 2] Encyclopedic. v.2-3 The great composers: critical and biographical sketches.
Resumo:
Vol. 5 does not have "compositions for piano" on the title page by includes it on the spine.
Resumo:
Head and tail pieces.
Resumo:
Vol. [8]-[10] have binder's title: Modern music and musicians. Encyclopedic. I-III.
Resumo:
Mode of access: Internet.
Resumo:
Mode of access: Internet.
Resumo:
Includes index.
Resumo:
Thebes (deserted settlement), Egypt; 2 ft. 10 41/64 in.x 3 ft. 3 11/64 in.x 8 21/32 in.; painted plaster
Resumo:
Mode of access: Internet.
Resumo:
Signed: Roger I. McDonough, chairman, Curtis G. Shake, member, John W. Yeager, member.