Search results

In this paper, we present a well calibrated a-face channel mobility model that shows an excellent match with the available experimental data and further provides critical insights into the anisotropic nature of channel mobility in 4H-SiC MOSFET structures.
Thus, here we present a well calibrated a-face channel mobility model that shows an excellent match with the available experimental data and further provides critical insights into the anisotropic nature of channel mobility in 4H-SiC MOSFET structures.
Al. [6] and later significantly revise the proposed semi-empirical formulation to describe experimental data.
An extensive calibration of SR, SP and RCS model terms was performed to match the experimental data for measured a-face channel mobility.
The TCAD results are in excellent agreement with measured data and successfully predict the channel mobility curve along with their temperature dependence.

Established a unified and practical test standard for the Strength Detector of Shallow Pavement; At last, analyzed the spot penetrating experiments data of three different types of asphalt pavement in Harbin district.
Back-calculation modulus, which is based on deflection basin data of the Falling Weight Deflectometer (FWD), is able to evaluate the carrying capacity of pavements comprehensively[3, 4, 5].
In order to obtain the function between average penetrating depth and splitting strength, make the compaction times as the intermediate variables, and fit the experimental data, then we Fig.3.
We can see from Fig.3, at 5 different temperatures, splitting strength linearly increases with the reduction of average penetrating depth.
According to the impact penetration test data and the splitting strength master curves of different temperature, we get the seasonal variations of splitting strength at the three different test sites, as shown in Figure 6.

The first step was synthesis of 2,4-diethoxy benzaldehide via Riemer-Tieman reaction of resorcinol and chloroform, followed by o-ethylaton, reduction using NaBH4 and ciclytation using AlCl3 catalyst.
Equilibrium adsorption data of octaethoxycalix[4]arene was carried out at 298 K.
Conclusion Octaethoxycalix[4]arene could be synthesized in four steps of the reaction i.e. formylation of the resorcinol followed by o-alkylation, reduction and condensation.

All paths are formulaic for the dimension of the core has been parameterized and the reduction of magnetic motive force between A and B can be presented as (3) (4) Where, function H1 is the nonlinear relationship between magnetic field intensity and magnetic flux density about the out wall, H2 and H3 is the nonlinear relationship between magnetic field intensity and magnetic flux density about MR fluid and armature respectively.
Based on the principle which total magnetic flux is unchangeable, the reduction of magnetic motive force presented as formula (3) and (4) should be equivalent.
Based on the principle of magnetic circle, the total reduction of magnetic motive force can be presented as the sum between the reductions of magnetic motive force in and out of the core, that is (6) Where, function H4 is the nonlinear relationship between magnetic field intensity and magnetic flux density about the core.
The damper and the experiment data under one of the experimental conditions have been shown in Fig. 4.
Prototype and the experiment data Summary A problem about MR damper design has been discussed in the article.

In each case, spectrum data have been analyzed depending on temperature changes (5℃, room temperature, 60℃), and transmittance and reflectance have been measured.
In terms of load reduction, the absorber Low-E glass was more efficient than transparent pair glass.
In the triple models (Models 3 and 4), high reduction rates (30% or above) were detected.
Compared to the low-E pair glass (1.7W/㎡·K of insulation efficiency, SHGC 0.5), the load reduction was 20.3%.
In addition, the high-efficiency glass exceeded low-E pair glass in terms of the reduction of load.

Boland defined the pollution pricing as: a means of monetary stimulus provided spontaneously to the polluters’ non-compulsive behavior to improve the environmental Paolo (1995, 2001) carried out a research on this issue, based on research of Nash (1978), Oldfield and Bly (1988), considered the maximization of the fuel consumption reduction as the objective function to optimize public transport services[3,4].
According to the empirical data and general conclusions on the exhaust emissions and speed made by H.
Based on this idea, considers the reduction of urban traffic pollution, and regards the maximization of the user surplus as traffic management objective, and meanwhile, consider the strategies of congestion pricing, bus fare, and road congestion pricing revenue is used for road expansion or public transport.
The road network, related data, O-D matrix and traffic demand of every travel mode can be obtained from reference [14].
The model reveals how to induce traffic travel behavior, and thus the reduction of the traffic environmental pollution management, with private transportation air pollution pricing, congestion pricing, bus fee and pricing revenue redistribution.

The data points for uncoated specimens fit on the line while for the coated specimens we have a bigger dispersion of the results as shown by Eq. 2 for uncoated and Eq.3 for coated specimens: S = -28.39 logN + 418.45 (R2 = 0.9533) (2) S = -8.59 logN + 279.79 (R2 = 0.6162)
This reduction decreases for higher number of cycles and shows an intersection with the uncoated specimens at 1E+7 cycles.
The reduction for 2E+5 cycles is due to the applied thermal load which modifies the mechanical features [8] and the premature cracking of the coating do to the high deformations [10].
The useful contribution of the residual stresses can be also seen in the small slope of the DLC data for 7075-T6 already explained for steel substrates in [10].
This behavior is in contrast with [8] and [9] where a substantial delamination for applied stresses higher than 200 MPa occurred with a consequent reduction of the fatigue resistance.

Major advantages of high-speed machining are high material removal rates, the reduction in lead times, low cutting forces, dissipation of heat with chip removal resulting in decrease in workpiece distortion and increase part precision and surface finish.
Table 1 Chemical composition and hardness of the workpiece material Chemical composition [mass%] Hardness [HB] Workpiece material C Si Mn S P Cr Fe HT 200 3.12 1.8 0.72 0.11 0.1 0.058 Balance 206 Table 2 Tool geometry and cutting conditions Cutting conditions Parameters Axial rake angle -5° Radial rake angle -7° Feed per tooth [mm/z] 0.1 Cutting width [mm] 5 Depth of cut [mm] 0.5 Number of tooth single Approach angle 75° milling cutter tool wear measurement work table data processing spindle workpiece dynamometer amplifier cutting force measurement Fz Fy Fx Fz Fy Fx D/A board Fig.1 Experimental set-up Results and Discussions Tool Wear.
Knowledge and data on the cutting forces are required not only for the design of machine tools and cutting tools, but also for the determination of cutting conditions for machining operations, especially for the programming of high speed machining.
With cutting speed greater than 900 m/min, a reduction of all the three cutting force components are observed.
As cutting speed increases greater than the critical values, a reduction of cutting force has been observed.

But in fact many design problems depend on multi-dimensional population data, which are multi-dimensional random variables and follow certain distribution laws.
In order to meet target design confidence level, required human data should be based on their distribution characteristics [8].
Motor driving force, reduction ratio, and spring parameters would be determined after all structural dimensions had been fixed.
Therefore, worm reduction motor would be preferred with advantages of compact structure, smooth running and low noise.
Types of reduction motors could be determined based on above calculations

The data from uniaxial tensile tests were used to describe the deformation mechanisms of AZ31 during biaxial gas blow forming. 3.
The corresponding thickness reduction is 59%.
In addition, the maximum thickness reduction occurred at the dome pole in simulation.
Based on the data from tensile tests, parameters of hyperbolic sine creep law model was determined at 400 ºC.
In addition, the maximum thickness reduction occurred at the dome pole in simulation.