The costs and the prof its ( ynan/mu ) were: a) 32.60 and 33.70, b) 29.98 and 30.41, c)23.78 and 34.54, d) 18.07 and 37.82 for extra low, low, medium and high fertility soils respectively.

When the distribution ratio is low,low electrical current density,such as 100~150 A/m~2, can be used in slurry electrolysis and the leaching rate is higher than 95%;

The low/low popularity dyads, as compared to the high/high and the high/low popularity dyads, exchanged significantly less personal information as indexed by both the patterns and the content of personal information exchange.

The initial social encounters of 30 pairs of unacquainted high/high, high/low, and low/low popularity status third- and fourth-grade boys and girls were observed in an analogue free-play setting.

Sphingomyelin was found to participate to a very low low degree and its accumulation was not proportional to the extent of overall storage.

We investigated the effects of atorvastatin on inflammation and cardiac events during the inpatient period and initial 6-month follow-up in acute coronary syndrome (ACS) patients with low low-density lipoprotein (LDL) cholesterol level.

These were separated by an anomalous low (low temperature) just to the north of the subcontinent.

For determining the lower limit of explosibility of coal dust cloud in laboratory,the authors have designed an apparatus capable of uniformly producing such clouds.The effect of fineness of coal dust, methane and stone dust on the lower limit of the explosibility of coal dust clouds has been investigated on a number of samples taken from several coalfields. The results obtained show : 1.The lower limit of the explosibility of coal dust clouds is closely related to the volatile matter content...

For determining the lower limit of explosibility of coal dust cloud in laboratory,the authors have designed an apparatus capable of uniformly producing such clouds.The effect of fineness of coal dust, methane and stone dust on the lower limit of the explosibility of coal dust clouds has been investigated on a number of samples taken from several coalfields. The results obtained show : 1.The lower limit of the explosibility of coal dust clouds is closely related to the volatile matter content in coal. The higher the volatile matter content, the lower is the lower limit of explosibility. The brown coal with 39-44 per cent volatile matter has a lowest lower limit of explosibility, being 45-55g/m~3 The coal dust with volatile mat-ter less than 10 per cent is not inflammable.2.The methane content in coal dust cloud can cause the decrease in lower limit of its explosibility. The lower the volatile matter content in coal dust, the greater is the effect of the methane on the lower limit of its explosibility.3. The stone dust is capable of suppressing the explosion of coal dust clouds. When the coal dust from Lung Feng Colliery was mixed with 75 per cent stone dust, it lost its inflammability entirely.

In binary orthogonal basis, seismic record can be expressed in this equation then its 2-D spectrum can be formulated as 2-D filtering can be performed by first clearing the spectrum values corresponding to unnecessary circular frequency ω and circular wavenumber k_x, then making inverse Fourier transform with the first equation. The fast Fourier transform subroutine (FFT) is designed using the following equations A_p(k·2~p+j)=A_(p-1)(k·2~(t-1)+j)+A_(p-1)(k·2~(p-1)+j+2~(m-1)) A_p(k·2~p+j+2~(p-1))=[A_(p-1)(k·...

In binary orthogonal basis, seismic record can be expressed in this equation then its 2-D spectrum can be formulated as 2-D filtering can be performed by first clearing the spectrum values corresponding to unnecessary circular frequency ω and circular wavenumber k_x, then making inverse Fourier transform with the first equation. The fast Fourier transform subroutine (FFT) is designed using the following equations A_p(k·2~p+j)=A_(p-1)(k·2~(t-1)+j)+A_(p-1)(k·2~(p-1)+j+2~(m-1)) A_p(k·2~p+j+2~(p-1))=[A_(p-1)(k· 2~(p-1)+j)-A_(p-1)(k·2~(p-1)+j+2~(m-1)]W_N~(k2) Then, the FFT is called to perform vertically and laterally the fast Fourier transform of seismic traces, obtaining 2-D spectrum. This program has time-varying and space-varying functions. In order to improve 2-D filtering, a F-K notch filter, whose main parameters are frequency and slope, is designed.The slope parameter not only can keep positive apparent velocity reflections or negative ones, but also can keep both of them. The frequency band must be wider than that for 1-D filtering. When high velocity reflections must be kept, higher high cut frequency should be taken, when low velocity reflections must be kept, lower low cut frequency should be taken. In order to improve resolution, we must use the frequency sample interval smaller than 7.8 Hz, and the wavenumber sample interval smaller than 0.0003125 per meter.

In this paper, the reason was analysed that the "short-term synchroni- zed difference-ratio procedure" which was used to calculate the design wa- ter level would lead to yield much bigger errors. Therefore, a method was proposed that made use of correlation analysis of the synchronized higher high water and lower low water for two harbors. being built and original, respectively, to calculate the design water level,and it was also verified by means of actually measured date. Furtherfore, the ratio of mean...

In this paper, the reason was analysed that the "short-term synchroni- zed difference-ratio procedure" which was used to calculate the design wa- ter level would lead to yield much bigger errors. Therefore, a method was proposed that made use of correlation analysis of the synchronized higher high water and lower low water for two harbors. being built and original, respectively, to calculate the design water level,and it was also verified by means of actually measured date. Furtherfore, the ratio of mean tidal ranges for two harbors, being built and original, during the identical set-up anp set-down of water was used to correct the value, k, thus a method which can calculate more accurate calibrated water level was obtained. this me- thod is of great significance to the engineerings for high elevation, such as the designs of nuclear power station and so on