Wyniki wyszukiwania - BazTech

1

Effects of Microwave Sintering on Properties and Microstructure of Ferromanganese Alloy Powders

Lei L., Libo Z., Linqing D., Hongbo Z., Guo C., Jinhui P., Qin G.

Archives of Metallurgy and Materials

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2018

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Vol. 63, iss. 2

547--553

EN

Microwave sintering process was employed to agglomerate ferromanganese alloy powders. The effects of sintering temperature, holding time and particle size composition on the properties and microstructure of sintering products were investigated. The results was shown that increasing sintering temperature or holding time appropriately is beneficial to increase the compressive strength and volume density. SEM and EDAX analysis shows that the liquid phase formed below the melting point in the sintering process, which leads to densification. XRD patterns indicate that the main reaction during microwave sintering is the decarbonization and carburization of iron carbide phase. The experiment demonstrate that the optimum microwave sintering process condition is 1150°C, 10 min and 50% content of the powders with the size of –75 μm.

2

Correction of sample-time error for time-interleaved sampling system using cubic spline interpolation

Qin G., Liu G., Gao M., Fu X., Xu P.

Metrology and Measurement Systems

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2014

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Vol. 21, nr 3

485--496

EN

Sample-time errors can greatly degrade the dynamic range of a time-interleaved sampling system. In this paper, a novel correction technique employing a cubic spline interpolation is proposed for inter-channel sample-time error compensation. The cubic spline interpolation compensation filter is developed in the form of a finite-impulse response (FIR) filter structure. The correction method of the interpolation compensation filter coefficients is deduced. A 4GS/s two-channel, time-interleaved ADC prototype system has been implemented to evaluate the performance of the technique. The experimental results showed that the correction technique is effective to attenuate the spurious spurs and improve the dynamic performance of the system.

3

Road Disease Real Time Detection Model on Multi-Lever Fuzzy Filter

Qin G., Li Q.

Przegląd Elektrotechniczny

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2012

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R. 88, nr 9b

104-107

EN

A Multi-lever filter fuzzy detection model on road disease is taken forward combining with advantages of noisy decreasing algorithms and characteristics of noise and disease in road image. The experimental results indicate that the proposed model is more advanced in decreasing noisy and extracting disease. The application of the road disease edge detection was realized in embedded Linux system. The evaluation report will be output in real time and sent to the central database from the embedded mobile terminal, including the corresponding position information in the cooperative GIS.

PL

Technika road desease jest stosowana w przetwarzaniu obrazu do usuwania szumu z zamazanych obrazów i odzyskiwania obrazu krawędzi drogi. W artykule przedstawiono filtr wykorzystujący logikę rozmytą.