band soft X-ray data from GOES database,and choosing some characteristic parameters for our proton prediction model,a BP neural network was designed and used to predict the peak flux of the proton events,with the network input of soft X-ray data. The test result shows that in most cases the prediction error is less than one order.
A simple method capable of simultaneously measuring characteristic parameters of absorption media, such as trasversal relaxation time T2, small-signal absorption coefficient a0 and saturation intensity Is, is presented.
After deducing the expression of sinusoidal Quasi-Haar wavelet transform ridge of MFSK signal,the expression was selected as the characteristic parameter of MFSK signal identification,and thus the identification was carried out.
In this paper,a characteristic parameter of one dimension applied to the segmentation of skin erythema color images has been proposed based on analyzing the color distribution of some typical erythema images in hsv color space,and used in experiments of segmenting erythema images with fuzzy c means algorithm.
Aimed at the influence of the white Gaussian noise on MFSK signal characteristic parameter,it was proposed that the least square method can be used to approximate the sinusoidal Quasi-Haar wavelet ridge.
The results showed that the regression coefficient between cell density derived from otsu algorithm and sense scores of bread crumb grain were 0.93. The value of cell density of the image is a characteristic parameter of distinguishing the breadcrumb structure difference.
The experimental results indicate that the method can achieve automatic extraction of defect region and edge with weak noise disturbance ,which lays a good foundation for flaw feature parameter extraction and choice.
Secondly, we review the segmentation methods of image integrated with texture information, and then we make a texture analysis on a human liver CT image through texture feature parameter based on co-occurrence matrix.
There are many feature parameters in the polishing powder, such as the distribution of the particles size, the size of crystalline grain and the appearances of polishing powder, which have an influence on the quality of the
3. The signal of instant vibration testing for soil compactness is analyzed both in time domain and frequency domain. Some feature parameters reflecting the characteristics of the signal are extracted.
The static version of the capillary instability is shown to depend on the elasticity modulus Κ, the surface tension σ0, and the radius r0 of the LC jet, expressed in terms of the characteristic parameter κ = Κ/σ0r0.
If TS is thin as compared to the Alfvén wavelength, the resistive Alfvén wave (λA) characterized by the field-aligned resistivity and Alfvén velocity above the sheet is the characteristic parameter responsible for the wave-sheet coupling.
In this way, first, every characteristic parameter related to T wave-end is encoded to a string of codes, and adaptation function is constructed with the string of codes.
Different service has discriminative sensitivity to the same QoS characteristic parameter in general.
Quite high values (between 120 and 140 K) of the characteristic parameter T0 convince very good thermal properties of the above laser.