Average dynamic yield strengths and correlative characteristics for three kinds of steel(D60,58SiMn and 9260) are studied up to strain rates of 10~3～10~4s~(-l),using the impact compression test and energy balance theory.

After C/C composites were treated under 2500℃,they had smooth brake process and small wear, and their average dynamic FC was slowly decreased in damp condition.

The results indicated that the average dynamic frictional coefficient (FC) of C/C composites was decreased in dry condition, but damp condition average dynamic FC and dry condition average static FC were increased as temperature was increased.

The average dynamic FC of four kinds of samples treated under different temperatures was reduced in dry and damp condition as brake pressure and energy were raised.

It is fabricated in a 0.18um COMS process, it has 10 million device ,the area is 5×5mm2, and the operation frequency can reach 120MHz, the average dynamic power dissipation of typical application is 325.084mw.

Through the study increasing rate of other primary pollution index this year and average dynamic numerical rank of petroleums and other primary pollution index over the years, the bounce of pollution index of petroleums wes verified.

The rheological property of injection molding feedstock made of 316L stainless steel powders and wax-oil-Polypropylene binder was evaluated using self-made capillary dynamic rheometer,and the effects of vibration frequency and amplitude on the average dynamic apparent viscosity of feedstock were described and analyzed.

Based on experimental results, this paper came up with a method to estimate the average dynamic power supply current by counting the weighting logical transitions in the circuit.

This paper introduces a method for calculating dynamic electromagnetic torque of stepping motor: by applying the principle of electrome chanical energy conversion, the energy amount of control windings obtained from one distributed period minus those of the copper loss and core loss and then divided by corresponding rotating angle gives the average dynamic electromagnetic torque. After being treated by conputer, the correlation between the average maximum torque and signal impule frequency, known as torque-frequency characteristics, can be obtained.

the average dynamic visual acuity at three kinds of far\|near movement speeds (0,30,45km/h) in twilight condition decreased 16.1%,19.4% and 21.4%,respectively;

Based on the UMC 0.18μm CMOS technology standard cell library,the reports of Design Power showed that the multiplier can achieve the speed of2.80ns,an average dynamic power dissipation of0.089mW/MHz at1.62V and125℃.

The average dynamic penetration ratios at 0～2 h,2～4 h and 4～6 h were 0.52,0.46 and 0.41,respectively. t 1/2β of serum and tissues were 2.12 h and 2.77 h (P>0.05),respectively.

The testing resultshows that our chip can perform modular arithmetics, point-add, point-doubleand scalar multiplication operations on ECC over GF(p) with the length of pfrom 192 bit to 256 bit. The chip can carry out 250 times scalar multiplicationper second, and its average dynamic power consumption is 15.42mW at theworking frequency of 100MHz.

Annual average dynamic variation index of land utilization was 2.4%,and dynamic variation range of land utilization is higher sharply than that of absolute value. The conversion within land utilization type was acute strongly.

Compared with static responses, the overall average dynamic stress-strain behavior foreach type of ligament exhibited an elevation in strength but reduced elongation.

The average dynamic-energy release rates which were obtained by dividing the dynamic tear energies by the total length of the crack paths, were found to be approximately equal to the critical strain-energy release rate of Homalite-100.

Measuring flow by means of the average dynamic head

Impedance techniques are used to investigate the average dynamic behaviour of a fluidized bed of gold-coated beads in potassium ferri-ferrocyanide/NaOH solution.

Exact results for the average dynamic behavior of some non-linear neural networks

The dynamic strengths and Young's moduli of sandstone and limestone are determined by using the SHPB method in this paper. The average strain rate is about 1×10~2 to 2×10~2/s. Some explainations and discussions in detail concerning the techniques of using this method are given. In order to understand the effect of strainrate static experiments(ε ×10~5/s) are also maxle.The average dynamic Young's modulus of the sandstone is 30% higher than its static one, while for the limestone it is 20% higher than its...

The dynamic strengths and Young's moduli of sandstone and limestone are determined by using the SHPB method in this paper. The average strain rate is about 1×10~2 to 2×10~2/s. Some explainations and discussions in detail concerning the techniques of using this method are given. In order to understand the effect of strainrate static experiments(ε ×10~5/s) are also maxle.The average dynamic Young's modulus of the sandstone is 30% higher than its static one, while for the limestone it is 20% higher than its static. The average dynamic compressivc strength of the sandstone is 40% higher than its static one, but it is 30% higher than its static for the limestone. The experimental results also show that the fracture surfaces are always nearly perpendicular to its ending surfaces.

This paper introduces a method for calculating dynamic electromagnetic torque of stepping motor: by applying the principle of electrome chanical energy conversion, the energy amount of control windings obtained from one distributed period minus those of the copper loss and core loss and then divided by corresponding rotating angle gives the average dynamic electromagnetic torque. After being treated by conputer, the correlation between the average maximum torque and signal impule frequency, known...

This paper introduces a method for calculating dynamic electromagnetic torque of stepping motor: by applying the principle of electrome chanical energy conversion, the energy amount of control windings obtained from one distributed period minus those of the copper loss and core loss and then divided by corresponding rotating angle gives the average dynamic electromagnetic torque. After being treated by conputer, the correlation between the average maximum torque and signal impule frequency, known as torque-frequency characteristics, can be obtained. Experimental figures given in this paper indicate that the results are of relatively high accuracy.

The stress-strain relations are investigated and the average dynamic abruptionstrength is obtained for dry and waterlogged granite specimens using split Hopkinson pressure barin this paper.The result shows that the dynamic tensile strength related to the loadingrates forwaterlogged granite specimens is different from that for dry ones,Finally , the dynanlic fracturecriterion for rock s has been analysed roughly using the spalling thick ness of the spocimen in theexperiment。