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Three kinds of Nb‐Ti‐Mo ferrite matrix micro‐alloyed steels with three different Ti contents were designed. With optical microcopy, transmission electron microcopy, energy spectrum analysis and tensiletest, the microstructures, precipitate particles as well as mechanical properties of three steels were studied. The strength and toughness of steel with0.092% Ti content were verified to adequate for...
The model of Realizable ?-e in fluent of computational fluid dynamics software was used to numerically simulate unsteady turbulent flow in spiral tube. In order to get the sound pressure with time variation diagram and the sound field spectrogram, the situation of flow field was analyzed and the acoustic field was monitored by the FW-H equation. The results show that the pressure of fluid to the internal...
We proposed a new approach for estimating the vibration and noise caused by magnetoelectric effect and magnetic force via finite element analysis. With this method, the relationship between inputting magnetic field and outputting vibration level of laminated core structure in power transformer could be obtained. The essential reason of vibration is analyzed and a kind of nanocrystalline soft magnetic...
This article puts forward a beam-splitting approach to measure microwave backscattering coefficient, measures the microwave backscattering coefficient of ferrite tile sample, and observe the variation laws of incident angle. This approach and its results offer an experimental means to measure backscattering coefficient of absorbing microwave materials.
FDK reconstruction algorithm, owing to its relative easy implementation and highly computational efficiency, remains the most widely accepted method for 3D C-arm Cone-Beam reconstruction. Because of the inherence characteristic of FDK reconstruction algorithm, the reconstruction imaging has some shortcomings. The paper deals with the problems affecting the quality of 3D images reconstructed from projections...
It is vital to improve knowledge integration efficiency for sake of team effectiveness. Informal control could adjust knowledge with different characteristic through people's view instead of formal intervention. Based on combination of Williamson's transaction theory and knowledge based view, this paper suggested three types of trust orientation inclusive of market type, authority type and consensus...
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