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Lifting speed is equal to worm input speed divided by the worm gear reduction ratio then multiplied by the elevating screw pitch.
ADAMS is mainly used as the simulation software, its own does not have complex function of modeling.So the simulation model was established in the professional 3D modeling software Solid edge V20,save as Parasolid (*.X_T) format,Let the model into ADAMS by the Parasolid model data exchange interface,Model of Parasolid data exchange interface is provided by the ADAMA/View.

Choose certain points on center axis, and compare the theoretical value(TV) and the simulation value(SV) .The results are as Tab.1: Tab.1 Results Comparison on center axis X /cm TV / SV/ 0 3.5967 3.5967 10 3.5904 3.5904 25 3.4018 3.402 The data comparison results in Tab.1 shows that ,the simulation model can effectively simulate the magnetic field distribution of Helmholtz coils. 4 Experimental Research on Artificial Controllable Magnetic Field According to the theoretic analysis, an experimental device is designed to produce artificial controllable weak-magnetic field.
The superposition of coil field and geomagnetic field can effectively reduce the total field intensity within the measurement area, which is equivalent to the reduction of geomagnetic horizontal component. 6 Conclusion Based on the analysis of the magnetic field of Helmholtz coil, an effective simulation model is introduced to investigate the its distribution.
An experimental device is designed using circular Helmholtz coils to produce artificial controllable weak-magnetic field, which reliability is proved by measured data.

Fatigue crack closure is the phenomenon which is widely considered to cause reduction in the fatigue crack growth driving force due to the premature contact of crack faces at positive load levels during cyclic loading.
A linear fit was applied to the data of the upper part of the curve.
Fig.3(b) shows the offset compliance curve replotted after the original compliance curve data are offset from the straight line from the linear fit.

Experimentals Samples of the Hastelloy X material in 50mm×75mm×1.6mm size are heated at 1175°C for one hour in the vacuum oven for pre-stress reduction and then naturally cooled to room temperature before the welding processes.
Each value of hardness is taken from the average of 5 data points.
Each data are taken from the average of three samples.

Results and Discussion Table 2 shows the fore-shortening and dog-boning data obtained for each of the materials analysed.
The dogboning of these three materials (Tantalum, Steel and Cobalt Chrome) are also quite similar to each other, therefore it seems that the dog-boning is quite sensitive to a reduction in the elastic modulus.
Table 3: Maximum von-mises stress data in stent and artery.

Collaborative design strategies can allow the shortening of design cycle times, reduction of engineering and development costs, and improvement of product quality, all of which are causative factors for increasing the profit, productivity, or competitiveness of an organization.
The storage server manages all the data related to the product and objects in the world.
Also the changes in a workspace such as motion, data modifications and sound are transmitted to the users immediately.

On account of this, this article analyzes data about coming sediment of Yichang and Hankou Stations to support characteristics of new sediment of Yichang-Wuhan Reach after impoundment of the Three Gorges with Mann-Kendall nonparametric rank test method.
In Mann-Kendall test, time series data under null hypothesis (x1,…,xn ) are sample of n independent and random variables and distribution; alternative hypothesis is two-sided test and its distribution to all k, jn, and k≠j, xk and xj is different.
Sediment runoff of other years all decreases, of which reduction in the period of 2001-2008 is obvious.

The additon of 20% slag reduces the yield stress and plastic viscosity.The action of SL4 with the highest specific surface area is most significan, however the reduction of SL1 with lowest specific surface area on rheological properties is smallest.With the increasing of water-binder ratio, the yield stress and plastic viscosity of the mortar decrease, and the difference of the rheological parameters between the mortars with different slags becomes small.
Fig. 4 Effect of slag on water film thickness Fig. 4 shows the effect of slag with different specific surface areas on the water film thickness of mortar at water-binder ratio of 0.25, 0.28 and 0.30 by referring the method put forward by Kwan [11-12].The addition of slag increases the water film thickness, and slag with higher specific surface areas contributes larger water film thickness (negative data is because of the presence of air voids).
For the data presented in each graph, regression analysis has been carried out to derive the best-fit curve, whose equation and R2 value are listed in the figure.

Table 1 Material properties of silicone rubber Table 2 Material properties of Al 1050 Parameter Unit Data Density g/cc 0.70 – 3.70 Hardness, Shore A 5.00 – 95.0 Tensile Strength, Yield MPa 5.20 – 8.00 Modulus of Elasticity GPa 4.48e-5 – 0.448 Poissons Ratio 0.50 Parameter Unit Data Hardness, Brinell 43 Tensile Strength MPa 160 Poissons Ratio 0.33 Sheer Strength MPa 83 Elongation at Break % 7 Electrical Resistance ohm-cm 2.9 e -6 Thermal Conductivity W/m-K 227 Fig. 2 shows the shape of the upper die for fabricating the bipolar plate and the manufactured bipolar plate sample.
As shown in Fig. 2(a), the multiple parallel serpentine type of the micro channel was chosen because this type is more advantageous to the contact area between the bipolar plate and the electrode and the reduction of the pressure drop than any other type.

Then the measurement precision could be decreased along with the reduction of signal frequency.
Architecture of the frequency measurement module Frequency measurement module design based on VHDL The VHDL program of the constant-precision frequency measurement module is as follow as: LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY PLJ IS PORT (BCLK,TCLK,CLR,CL,SEL : IN STD_LOGIC; - JS : OUT STD_LOGIC; DATA : OUT STD_LOGIC_VECTOR(7 DOWNTO 0)); END PLJ; ARCHITECTURE BEHAVE OF PLJ IS SIGNAL FB,FT: STD_LOGIC_VECTOR(31 DOWNTO 0); SIGNAL ENA: STD_LOGIC; BEGIN JS <= ENA ; DATA <= FB(7 DOWNTO 0) WHEN SEL="000" ELSE FB(15 DOWNTO 8) WHEN SEL="001" ELSE FB(23 DOWNTO 16) WHEN SEL="010" ELSE FB(31 DOWNTO 24) WHEN SEL="011" ELSE FT( 7 DOWNTO 0) WHEN SEL="100" ELSE FT(15 DOWNTO