The wet oxidation of buried Al_xGa_(1-x)As was investigated. The oxidation character and the dependence of oxidation rate on the temperature and Al content have been studied in details. Through analyzing oxidation mechanism and linear relationship between oxidation length and time, it is educed that the lateral oxidation of Al_xGa_(1-x)As, in relatively short oxidation time, is a reaction rate limit process.

According to the deferent demands of the changeable electric cireuit and impurity of the brine, using the function of μXL' s operation and rate limit accomplishes the complicated automatic control of the flow of brine filter in IM caustic soda system.

In this paper,analog signal with 0 1 to 10 GHz frequencies,digital signal with 0 2 and 0 3 Gbit/s rates and frequency shift keying decoding are studied in chaotic lasers. Influences of the frequency and the amplitude of the encoded signals and rate limit of chaotic shift key of lasers on synchronous error are optimally analyzed.

Calculations by this method shows that the results are in good agreement with the theortical resuts obtained by the numerical iterating method given in papers[1]and[2] The method eliminates the shortcoming that the amplitude of roll rate limit cycle oscillation induced by roll hysteresis in the above pepers is not the maximum value.

The purpose of this paper is by testing the actual transfer rate limit of USB2.0, to determine if USB2.0 can be used widely in the radar ground system.

A full range sampling timer is designed and installed in a data acquisition circuit so as to make a real-time determination of the pulse group and pulse number per sampling according to the requirement for the sampling accuracy and rate,thus eliminating the influence of the serial communication rate limit and its transfer time delay on the data processing accuracy.

We study the growth rate limit as function of the marking.

However, microstructural evidence suggests that the entrapment of gas pockets at the wheel-metal interface may play a critical role in establishing the upper rate limit.

The maximum brittleness and slow strain rate limit is treated.

The upper strain-rate limit for determining the dynamic yield strength of ductile materials with a SHPB is identified.

Absorption Rate Limit Considerations for Oral Phosphate Prodrugs

The dissolution rates of 28 tetracycline tablet samples obtained from various factories were determined. The absorption of six of the 28 samples were determined using tetracycline solution as reference standard in 18 volunteers by urine test for 72 hours. The absorption of two of the six samples were also determined in ten volunteers by plasma test for 12 hours. The observed absorption of the six samples showed distinct statistical difference. The availabilities of the six samples were 87.40%, 81.40%, 79.08%,...

The dissolution rates of 28 tetracycline tablet samples obtained from various factories were determined. The absorption of six of the 28 samples were determined using tetracycline solution as reference standard in 18 volunteers by urine test for 72 hours. The absorption of two of the six samples were also determined in ten volunteers by plasma test for 12 hours. The observed absorption of the six samples showed distinct statistical difference. The availabilities of the six samples were 87.40%, 81.40%, 79.08%, 75.15%, 57.05% and 39.15% respectively. The correlation between bioavailability and dissolution rate was not significant. A dissolution rate limit was suggested.

This paper presents an approximate analytic method which determines the characteristics of aircraft lateral-directional limit cycle oscillation induced by aerodynamic hysteresis.Calculations by this method shows that the results are in good agreement with the theortical resuts obtained by the numerical iterating method given in papers[1]and[2] The method eliminates the shortcoming that the amplitude of roll rate limit cycle oscillation induced by roll hysteresis in the above pepers is not the maximum value....

This paper presents an approximate analytic method which determines the characteristics of aircraft lateral-directional limit cycle oscillation induced by aerodynamic hysteresis.Calculations by this method shows that the results are in good agreement with the theortical resuts obtained by the numerical iterating method given in papers[1]and[2] The method eliminates the shortcoming that the amplitude of roll rate limit cycle oscillation induced by roll hysteresis in the above pepers is not the maximum value.

Wind tunnel tests on aircraft models often demonstrate that the variation of lateral-directional rolling and yawing moments with the yaw angle gives evidence of aerodynamic hysteresis occurred at high angle of attack. The non-linear additional increments of the moment due to aerodynamic hysteresis are linearized by the harmonic linear method. Then, based on the harmonic balance method, an approximate analytical formula is derived for determining the characteristics of aircraft lateral-directional limit cycle...

Wind tunnel tests on aircraft models often demonstrate that the variation of lateral-directional rolling and yawing moments with the yaw angle gives evidence of aerodynamic hysteresis occurred at high angle of attack. The non-linear additional increments of the moment due to aerodynamic hysteresis are linearized by the harmonic linear method. Then, based on the harmonic balance method, an approximate analytical formula is derived for determining the characteristics of aircraft lateral-directional limit cycle oscillation induced by aerodynamic hysteresis. Calculations by this method show that the results are in good agreement with data obtained by the numerical iterating method in references[1]and[2]. The method eliminates the shortcoming in the above references that the amplitude of roll rate limit cycle oscillation induced by roll hysteresis is not the maximum.