1. A spectrogram based on PC is presented.

2. The other methods include: The conventional method of spectrogram parameters, the zero-pole model and the fractal method, the latter two were proposed by the present authors before.

3. Through the application of adaptive spectrogram, the cross-term interference is suppressed. The time frequency information is obtained accurately.

4. The spectrogram of the samples has optic reflective apexes and shows the photonic band gap effects.

5. Compared the spectrogram , that the petroleum ether used as solvent is better than anther.

6. According to the analysis of SEM spectrogram, the isintegration of molybdenite is the result of comprehensive effect of brittle cleavage fracture and plastic-brittle noncleavage laceration.

7. We detect signal in three way, namely linear spectrogram detection ~ energy detection and modulation detection.

8. Firstly, the polynomial convolution algorithm was used in spectrogram smoothness, baseline correction and standardization for original NIRS data of diesel fuel.

9. TO study about Speech Spectrogram complete code can be directly used by the test.

10. Results From the spectrogram of the implants, the characteristic band of each ingredient appears as linear superposition, neither more nor less.

11. Spectrogram function in matlab [ For speech ] the full code, has been tested.

12. At the same time a spectrogram is derived WD of speech.

13. Results: The infra - red spectrogram of the product showed the chitosan had been modified by chloroacetic acid.

14. Some disease group showed distinct features in their spectrogram, correlogram and sonogram.

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15. The structure of the extract was determined by IR, and the spectrogram is accordant to standard product.

16. Result Wavelet scalogram of blood flow ultrasonic signal had a higher distinguishability than STFT spectrogram in the low frequency portion, but had poorer decussation terms than spectrogram.

17. A new type online analyzer of gasoline octane number based on NIR Spectrogram was introduced.

18. Industrial lignosulfonate LS was modified to graft carboxy by the free radical copolymerization reaction. The structure of modified lignosulfonate LSA was characterized by the infrared spectrogram.

19. By means of spatial encoding technique for black-white negative, positive and product positive of spectrogram an intensity pseudocolor-coded spectrogram is obtained in a white-light optical processor.

20. By analyzing the recorded stridulation in the VS-99 pronunciation work-station, in the Yangchen Company in Beijing, we drew the Oscillogram and Broad Band Spectrogram.

21. The software of the system consists of 6 function modules: operation instruction, sampling, management of data, analysis of spectrogram, correlogram and sonagram.