The results show that the ratiosof average wave heights and average wave periods between W1 and W2 are 0. 54 and 0. 75separately, and the largest ratios are 0. 67 and 1. 01 respectively.

In the non_regular wave experiment, the average wave height error is less than 4.87%, the average pariod error is less than 4.59%, while the repeated error of the wave height is less than 1.87% and the transverse error of wave height is less than 3 71%.

Based on the observational data of the wave at Nanji oceanographic station during 1981 -1990, the distributional features of statistics between the average wave slope and the average wave age for the wind wave in the area are discussed.

Compared with the experimental results of the primitive conditions, the impact effect on the mould’s narrow wall reduced by 45.5%, and the meniscus surface’s fluctuation reduced by 35.3%, the average wave of the surface reduced by 33.3%, and the penetration of the stream directed downwards reduced by 22.7%.

The results of the water model as follows:1)At the primitive conditions, when the bottom of the nozzle is convex and the SEN do not set the, the meniscus surface’s fluctuation, the average wave of the surface and the flow impacting the mould’s narrow wall are comparatively great. They are individually 0.15cm, 0.119cm and 0.202kpa.

In fast axis the divergentce of each beam is 0.28o,In slow axis is 1.4o ,the area of field from the end of LD stack 20cm is 42×25mm2 ,average wave is 9.3%. So,it can meet the requirement of pumping, and the effect is fairly good.

The average wave number of band of ν s (PO - 2) shifted from 1 080.0 to 1 077.6 cm -1 and that of ν as (PO - 2) shifted from 1 239.4 to 1 238.4 cm -1, which indicated that the degree of hydrogen-bonding formed by oxygen atom of the phosphodiester groups of nucleic acids was weakened.

The flow deformation is determined by the average wave resistance force per unit square.

It is shown that fast time pulsations of velocity lead to an increase in the average wave field and in the propagation velocity of an electromagnetic wave.

Average wave field in a medium with random inhomogeneities

In the general case, the average wave field satisfies the equations of anisotropic fluids.

We study wave propagation in a disordered system of scatterers and derive a renormalized cluster expansion for the optical potential or self-energy of the average wave.

In this paper a method for analyzing the observed wave data and for calculating the design wave parameters at Chinese Coastal Area is proposed. It is shown that the Weibull function of three parameters and the power function can be used to fit the long-term probability distribution of the maximum wave height and the relation of the average period to the wave height, respectively, i. e. and Hence the design waye height can be obtained by using the parameters of the Weibull distribution and the average wave...

In this paper a method for analyzing the observed wave data and for calculating the design wave parameters at Chinese Coastal Area is proposed. It is shown that the Weibull function of three parameters and the power function can be used to fit the long-term probability distribution of the maximum wave height and the relation of the average period to the wave height, respectively, i. e. and Hence the design waye height can be obtained by using the parameters of the Weibull distribution and the average wave period and the encountered probability can be computed based on the return period of design wave TC.Y and the design lifetime of the structure TL.Y. These formulas are and In the table the distribution parameters of H0, Hc, Kh, bt, Kt and the design wave parameters of Hd, Tz for 4 regions of Chinese Coastal area are listed. The program of the Wave Observed Data Analysis (WODA) and of the Design Wave Parameter Predict (DWPP) and the all results can be used in marine engineering design, but it should be noted that the observed data is limited and that a certain factor is also included in the theoretical calculations.

Based on the recording data of head wave of 164 observed points from five artificial explosions in central and east area of China, the Moho discontinuity is studied with time term method after correction of the travel-time for elevation in this paper.In order for save of memory capacity in electronic computer, increment of velocity and calculation accuracy, and convenience of calculation in small-sized computer, the velocity V_(pn)=8.005±0.028km/sec. of head wave along the Moho discontinuity and time terms a_i...

Based on the recording data of head wave of 164 observed points from five artificial explosions in central and east area of China, the Moho discontinuity is studied with time term method after correction of the travel-time for elevation in this paper.In order for save of memory capacity in electronic computer, increment of velocity and calculation accuracy, and convenience of calculation in small-sized computer, the velocity V_(pn)=8.005±0.028km/sec. of head wave along the Moho discontinuity and time terms a_i at 164 observed points are found using the methods of the characteristic number group T(i, j) made from the specified regularity and partitioned matrices to inverse.Taking average wave velocity V_0=6.25km/sec of the overlying medium over moho surface, the moho depth at each point is obtained by reversion based on the data of reflection wave on Moho discontinuity, and Moho outline figure with isobathy lines inthis area is mapped.It will be seen from this figure that depths of Moho discontinuty increase in the Dabeishan region and the region to the of NS- gravity gradient zone in EastChina, which reach 36km and 45km respectively, but that of Moho surface become shallow in basins and/or great lakes and plain, which is 30km generally. The total tendence show that deepened gradually from the east coast to west, Its change range is from 30km to 45km, and avrage depth is about 33.6km.

The wave characteristics of Mawan Bay to Chiwan Bay is statistically analyzed based on the data from a wave station in Chiwan Bay. By using the 15-30 year wind data from the Chiwan Bay and nearby stations, both the National Harbour Hydrology Standard method and the Ippen method are applied to predict the maximal water wave in Mawan Bay. The conclusions are as follows:1. The general wind direction is E-SE in the study area. The strong wind direction is SE or SW-NNW. Due to the restriction of topography, the water...

The wave characteristics of Mawan Bay to Chiwan Bay is statistically analyzed based on the data from a wave station in Chiwan Bay. By using the 15-30 year wind data from the Chiwan Bay and nearby stations, both the National Harbour Hydrology Standard method and the Ippen method are applied to predict the maximal water wave in Mawan Bay. The conclusions are as follows:1. The general wind direction is E-SE in the study area. The strong wind direction is SE or SW-NNW. Due to the restriction of topography, the water wave in this area is wind-wave dominative and not very strong. Annual average wave height is 0.2m. The maximal wave height observed is 1.92m with period of 4.6s.2. Typhoon is the only major factor generating the maximal wave in Mawan Bay. About 1.4 typhoons every year arrive the Pearl River Estuary and affect this area.By introducing the concepts of short fetch and equivalent fetch, the probability of maximal wave is forcasted with the wind directions respectively in S, SW,W, NW, and NNW.The probability of height and period of maximal wind wave in every 100, 50, 20, 10, 5 , and 2 years are obtained by using the standard method and the Ippen method.Both yield concordant results. Using the standard method, the maximal wind wave height in every 50 years is 2.0-3.5m with period of 5.0 -6.7s. This result is comparable to that obtained for Chiwan Bay and may be used as reference data for harbour constructions in Mawan Bay.