Search results

The example shows accumulating more before-test experience and decreasing the experiment time appropriately won’t result in the reduction of the reliability.
Accumulating more before-test experience and decreasing the experiment time appropriately won’t result in the reduction of the reliability.
Test Plans and Data Analysis, John Wiley & Sons, 1990.

Introduction At present the reduction of fuel consumption and CO2 emissions is one of the most important challenges that the automotive industry is facing.
Consequently, the need of limited fuel consumption and pollution emission with eventually constant or improved performances is leading towards a dramatic attention for the car weight reduction.
Hence reproducible results can be provided, because only blanks with comparable initial temperatures before the deep drawing process takes place, are used for the following evaluation of the data.
These approaches were developed at two labs, one in Germany and one in Italy, implying different testing set-ups and data analysis procedure to obtain the friction coefficient between sheet and dies.
[14] Geiger, M.; Merklein, M.; Hoff, C.: Determination of Data for Hot Stamping.

Table 1 Nutrient solution composition*) Parameters Concentration [mg·kg-1] Total nitrogen 260 NH4+-N 23 NO3--N 233 P2O5 120 K2O 405 CaO 230 MgO 60 MnO 1.5 B2O3 1.5 Fe 2.7 Cu 0.03 Zn 0.09 Mo 0.03 EC[dS·m-1] 2.6 *)The data are taken from [11] Preparation of Pb- and Zn-contaminated Soil.
In the absence of chelating agents, the biomass of the control (Pot No.7) exhibit clearly reduction compared with that of the blank (Pot No.8), and the reduction amount of the shoot and root are about 16% and 33% of the blank biomass, respectively.
From our other preliminary experiment (Data in the experiment are not shown in this paper), it is confirmed that the addition of enhancing regulators, such as gibberellic acid (GA3) and indole-3-acetic acid (IAA), improves the biomass in case of Brassica juncea as with the work of Hadi et al. [16] using maize (Zea mays L.).
Then, the reduction of the biomass observed in this work can be settled by using regulators such as GA3 and IAA.
The data obtained and the method used in this work can be useful for the remediation of metal polluted soils in future work.

Result shows that a significant reduction of the particle size occurred when the substrate was placed in the spray jet.
The reduction in particle size was due to the effect of the blockage of the substrate on the spray.
Test data were obtained by averaging results of five test runs.
A significant reduction of the particle size occurred when the substrate was placed in the spray jet.
The reduction in particle size was due to the effect of the blockage of the substrate on the spray.

Among several synthesis techniques, chemical reduction of graphene oxide is one of the most popular methods.
Chemical reduction has some inherent disadvantages.
In our work, the synthesis of reduced graphene oxide (RGO) from green reduction of graphite under microwave heating system.
Diffraction data were collected over the 2θ range from 5 to 40°.
Sheet resistance data of graphite and RGO coated on BOPP film.

Abstract:Based on unified strength theory solution of thickness cylinder, according to the introducing concrete strength reduction factor and equivalent restriction factor, this paper deduced the axial compressive bearing capacity formula of concrete-filled double skin steel tubular columns of octagon section.
Based on unified strength theory solution of thickness cylinder, according to the introducing concrete strength reduction factor γ1[7]and equivalent restriction factor γ2[8], concrete-filled double skin steel tube members of octagon section were equivalent to circle hollow section (CHS) inner and CHS outer concrete-filled double skin tubes.
Using the introducing concrete strength reduction factor γ1[7]and equivalent restriction factor γ2[8], concrete-filled double skin steel tube members of octagon section are equivalent to circle hollow section (CHS) inner and CHS outer concrete-filled double skin tubes.
Unable to get the τs and σs by the real test, this paper let b=0 and b=0.364, use Eq. 8 and Eq. 9 to calculate the literature data[4], results are listed in Table 1.

With the increasingly stringent emission control regulations, selective catalytic reduction (SCR) technology is considered to be the most promising method in removal NOx from diesel exhaust.
Selective catalytic reduction (SCR) technology is considered to be one of the most promising methods.
Because of its advantages such as significant effect on NOx emissions reduction, better fuel economy and relatively insensitive to fuel quality and the high catalyst activity, it is considered to be one of the most cost-effective methods in removal NOx from diesel exhaust.
After data processing, the calculated injection pulse width is sent to the metering pump through CAN bus.

Fig. 4: Influence of the fluid temperatures on the friction [3] Fig. 5: Sample measured data: the dependence of the friction losses in the temperature of the coolant and lubricating oil (SI engine, rpm = 2000).
(2) Further application was created for the approximation of the measured data, which uses the method of least squares coefficients calculated the selected function.
Fig. 6: Sample measured data: the dependence of the mean friction pressure pmr in the temperature of the coolant water tw (SI engine).
Fig. 7: Sample measured data: the dependence of the mean friction pressure pmr in the temperature of the coolant tw and lubricating oil to (SI engine, rpm = 2000).
Dohmen, in: Friction Reduction - the Engine’s Mechanical Contribution to Saving Fuel, FISITA World Automotive Congress (F2000A165), Seoul (2000) [4] F.

These behaviors might be attributed to the length reduction of one third of P-P bonds between the adjacent NiP layers.
A few comments can be made right away: (i) As compared with the high-temperature data [Figs. 2(p)-2(r)], the hole-like band centered at X sinks below EF at 30 K [Fig. 2(m)-2(n)]; (ii) The band dispersions centered at M show a 20-30 meV shift towards higher binding energies at low temperature [Figs.2(g)-(i)] as compared to high temperature [Figs. 2(j)-2(l)]; (iii) There is one extra hole-like band centered at Г (named α) showing up at 30 K [see Fig. 2(a)-2(c)], in contrast to the data at 340 K [Fig. 2(d)-2(f)]; (iv) One additional electron-like pocket is observed around the M point at 340 K in Sr2Ni2P2 [Figs. 2(j)-2(l)] .
(Color online) SrNi2P2: (a, g, m)/(d, j, p) ARPES intensity plots of data are recorded at 30 K/340 K.
Discussion Upon cooling down below 325 K, there is an enhancement of the P-P interactions between the adjacent Ni layers in SrNi2P2 that results in a dramatic reduction of the length of one third of the P-P bonds between the NiP layers [12, 13].

Vibration Characteristic Analysis of Diamond Saw Blade with Multitude Holes Structure for Vibration and Noise Reduction Shanshan Hu1,2,a , Yingning Hu2,b, Chengyong Wang 1,c and Changxiong Chen2,d 1 Institute of Manufacturing Technology, Guangdong University of Technology, Guangzhou, China, 510090 2 College of Mechanical Engineering, Guangxi University, Nanning, China, 530004 a chloee_2000@163.com; bhyn@gxu.edu.cn; ccywang@gdut.edu.cn; dccxfly2003@163.com Keywords: Diamond saw blade with multitude holes structure, Vibration characteristic analysis, Configuration optimization Abstract.
Therefore, the frequency of a certain modal shape reduction would cause the decreasing of wave number producing sound radiation, then the effect of sound radiation reduce too.
Experiment data shows holes structure I6-72 is recommended in mid-low feed speed 200-400mm/min, especially for concrete C30. 0 200 400 600 800 1,000 Cutting Force ( N ) 200 300 400 500 V (mm/min)f Fxave Fyave Fzave Fsum Cutting condition: Vc p=24m/s a =20mm Material: C25 Sawblade:672 0 200 400 600 800 1,000 Cutting Force ( N ) 200 300 400 500 V (mm/min)f Fxave Fyave Fzave Fsum Cutting condition: Vc p=24m/s a =20mm Material: C30 Sawblade:672 0 200 400 600 800 1,000 1,200 1,400 Cutting Force ( N ) 200 300 400 500 V (mm/min)f Fxave Fyave Fzave Fsum Cutting condition: Vc p=24m/s a =20mm Material: C35 Sawblade:672 (a) Holes structure I6-72 sawing concrete C25 (b) Holes structure I6-72 sawing concrete C30 (c) Holes structure I6-72 sawing concrete C35 Fig.6 Holes structure I6-72 sawing different concretes Fig.7 is sawing force of holes structure I8-48 sawing different concretes.
Fig.9 (b) shows when holes structure I8-48 sawing concrete C35, vibration amplitude has slight reduction with feed speed increasing.
Fig.9 (c) shows vibration amplitude has general trend of reduction, where it falls to minimum in feed speed 400-500mm/min for sawing concrete C30 and C35.