Search results

It is primary to design a type of muffler which is good for agricultural automobile engine matching and noise reduction effect.
The numerical results show that not only does it provide the 3D distribution data in different crank shaft angle inside the cylinder in the simulation of combustion process, but also it provides a basis for the engine combustion ,emission research, the optimization design of the combustion chamber and the useful information for the designs of muffler.
When the piston moved up, the algorithm of grid reduction should be used in the areas above it.

For analytical purposes, the data used was based on a 309 meter distance.
During data collection they were asked to drive in both directions of the road during the day and at night.
The data collection was measured in-vehicle.
Direction 1 Direction 2 100m 100m 200m Start/End of data observation Start/End of data observation Start/End of data horizontal curve Fig. 1 Study sites Fig. 2 Portable GPS device (DG200) Result and discussion Speed distribution at study areas.
It can be seen that, the speed does not show very good distribution of data.

According to conditions of the irrigation area water supply and groundwater reduction for many years, the paper puts forward the optimal allocation and the supplying water programs on using combination of surface water and groundwater.
Taking the 2001 - 2010 average annual groundwater in agricultural production uses 6.912 billion m3 is regarded as the initial value, design four kinds of groundwater reduction scenarios, reduced by 3%, 5%, 10%, 15% of agricultural groundwater extraction, agriculture needs Yellow River water respectively reaching 4.20736, 4.3456, 4.6912, 5.0368 billion m3 / a[3].
However, according to the data in recent years, 2006 - 2010 Yellow River Basin water has decreased, about three percent less than the same period average value.
Changing some parameters value in the model (each parameter is selected based on the experimental data or empirical data), it could work out the predetermined needs diverting water from the Yellow River and groundwater extraction at different time.
Calculating data will have better reference value that will increase the new water-saving irrigation area, improve the efficiency of irrigation water resource utilization, the rational distribution exploitation quantity of groundwater, effectively control the expansion of shallow groundwater funnel area, solve groundwater recharge and balance, analyze carrying capacity of water resources and so on.

Their coefficients were back-calculated using partial fatigue tests data.
The life prediction precision of each equation was verified by residual fatigue tests data.
Coefficients of damage evolution equations were back-calculated by specimen beam tests data.
Here, loading cyclic number was equal to the corresponding test data.
Here, loading cyclic number was equal to the corresponding test data.

This task may be implemented by integrating production processes, technologies, data on production resources and production systems into one smoothly operating network.
System Description A lack of proper links (real-time feedback) between the production hall and management levels as well as manual entering of data into the system by the employees lead to abundant errors and distortions, including the possibility of data loss.
Consequently, production stoppages are prevented owing to automatic data management and operation times of machines and devices are shortened to a minimum.
Creating an environment which enables a direct access to all the data coming from the production level and influencing them in real time leads to a correct analysis of processes taking place on all levels of the enterprise.
Ćwikła, Automatic data acquisition for systems supporting company management, Selected Engineering Problems (2011) 79–84

Then the obtained data is encoded with base 64 encoding scheme which is then converted into binary data blocks.
Byte Code is converted into binary data blocks.
Positions of the distinct binary data blocks will be encrypted with ELGAMAL Crypto system.
Take two consecutive bytes of the data file as A1 and A2 Step 5.
Crossover the two consecutive bytes of the data file as B1 and B 2 Using the number Ki.

Room temperature (300K) X-ray diffraction data were collected on a Philips PW 1710 automated X-ray powder diffractometer using CuKa radiation, graphite monochromator, and Xe-filled proportional counter.
Data were collected in the 2θ range of 5° - 90° at a scan speed of 2 degree/min.
This results in a tendency to shrink the lattice, which causes reduction in lattice constant [32].
Percentage reduction of COD values. 4.
Wang, Preparation and characteristics of ferrite catalysts for reduction for CO2, Mater.

Finally, thermal analysis revealed that fibers retted in distilled water provided the highest thermal stability, attributed to a reduction in lignins and hemicelluloses.
The authors also noted a reduction in the density and diameter of fibers from the upper and lower leaf parts, with the reduction being particularly pronounced for mechanically extracted fibers.
Furthermore, these values are consistent with those reported by Gèze [30], confirming the reliability of the data obtained.
This observation highlights the better thermal stability of these fibers, due to the reduction in lignins and hemicelluloses [32].
Distilled water retting, on the other hand, produced fibers with the best thermal stability, due to a reduction in lignins and hemicelluloses.

Tensile strength [MPa] Yield strength [MPa] Elongation [%] Reduction of area [%] 1067 995 9.4 47.3 The specimen size of tensile test has been shown in Fig. 2.
In addition, the test data also reveals that the yield strength and tensile strength of Ti-38644 alloy after solution are relatively consistent, which means that the work hardening is not obvious in this alloy during the deformation process.
Under this heat treatment system, better mechanical property can be achieved with the tensile strength 1330MPa, elongation and reduction of area 10% and 45% respectively.
Fig. 6 Strength, elongation and reduction of area of Ti-38644 alloy after ST: (a) solution at 800℃; (b) solution at 815℃.
(3) The tensile strength and yield strength decrease gradually, while the elongation and the reduction of area increase with the aging temperature increasing.

In order to improve the common defects of uneven cell size and cell rupture in MuCell, this study aims to ameliorate the issues of excessively large open-cell structure and density reduction caused by cell rupture in MuCell with thermoplastic polyurethane (TPU).
Positions for taking SEM images Cell density was determined by importing the captured SEM images into AutoCAD to carry out data extractions and diameter measurements, and then perform the calculations based on the following equation [13]： (2) where is the cell density (cell/cm3), is the number of cells in the micrograph, is the area of the micrograph (cm2 ), and is the magnification of the micrograph.
Experimental procedures This study aims at discussing how to improve the cell structures of the TPU under the requirement of a high weight reduction.
All weight reductions were set to 55 %.
Comparison of the cell density Conclusions Due to the low viscosity of the TPU melt in the MuCell® process, it is likely to produce large cells or even cause cell rupture under the requirements of high expansion ratio and high weight reduction.