Because of their excellent high temperature characteristics, Ni-based single-crystal alloys are used in applications where operating temperatures exceed 900ºC. The initiation of cracks under these conditions is generally associated with micro-scale porosities (typically between 10 and 20 microns). A rate-dependent crystallographic constitutive model in conjunction with a mass diffusion model has been used to study crack initiation in single crystal nickel-base superalloys, exposed to an oxidizing environment and subjected to ....etc

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Introduction
The interdisciplinary nature of ECS is uniquely refl ected within the High Temperature Materials (HTM) Division. Here, scientists and engineers are concerned with the chemical and physical characterization of materials, the kinetics of reactions, the thermodynamic properties and phase equilibria of systems, the development of new processing methods, and ultimately, the use of materials in advanced technology applications at high temperatures. The mission of the HTM Division is to stimulate edu ....etc

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Abstract—

This paper proposes a new soft-switched continuousconduction- mode (CCM) boost converter suitable for high-power applications such as power factor correction, hybrid electric vehicles, and fuel cell power conversion systems. The proposed converter achieves zero-voltage-switched (ZVS) turn-on of active switches in CCM and zero-current-switched turn-off of diodes leading to negligible reverse-recovery loss. The components’ voltage ratings and energy volumes of passive components of the proposed converter are greatly reduce ....etc

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Study of High Temperature Crack Initiation in Single Crystal


Because of their excellent high temperature characteristics, Ni-based single-crystal alloys are used in applications where operating temperatures exceed 900ºC. The initiation of cracks under these conditions is generally associated with micro-scale porosities (typically between 10 and 20 microns). A rate-dependent crystallographic constitutive model in conjunction with a mass diffusion model has been used to study crack initiation in single crystal nickel-base superalloys ....etc

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SUPERCONDUCTIVITY is the ability of certain materials to conduct electric current with no resistance and extremely low losses. This ability to carry large amounts of currents can be applied to electric power devices such as motors and generators and to electricity transmission in power lines. For example, superconductors can carry as much as 100 times the electricity ordinary copper or aluminium wires of same size.Scientists had been intrigued with the concept of superconductivity since its discovery in the early 1900?s, but the extreme low tem ....etc

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Can somebody help me out on finding journals and presentations for

'special materials for high temperature applications' ??

it would be very kind if i could get it asap! ....etc

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sspecial materials for high temperature applications ....etc

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DYNAMIC MEMORY ACCESS MANAGEMENT FOR HIGH PERFORMANCE DSP APPLICATIONS USING HIGH-LEVEL SYNTHESIS
PRESENTED BY:NIRMAL JOSEPH
S7 ECE
College Of Engineering, Trivandrum
2007-11 batch



OUTLINE
INTRODUCTION.
TARGETTED ARCHITECTURE.
HIGH LEVEL SYNTHESIS.
DESIGN FLOW.
CONCLUSION.
REFERENCES.


DYNAMIC MEMORY ACCESS(DMA)
Also called indeterminate access sequence.
A part of data is not known before the execution of the application.
Memory acces ....etc

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SIR C R REDDY COLLEGE OF ENGINEERING, ELURU
Department of Electronics & Communications Engineering
PAPER PRESENTATION ON
HIGH TEMPERATURE SUPERCONDUCTORS


AUTHORS:
B. Deepthi
650555016
3/4 ECE
T. U. S. S. S. Asha kiranmai
650555076
3/4 ECE
SIR C. R. R. COLEEGE OF ENGINEERING


ABSTRACT:

In traditional conductors like copper or aluminium the transmission is asscoiated with the wastage of energy due to resistance drop.Typical copper wire generators ....etc

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it is my kindly request to send ppt presentation on high temperature superconductors applications so plese send it to me. ....etc

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