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Online since: October 2004
Authors: Joseph A. Arsecularatne, L.C. Zhang
The required experimental data were obtained from torsion tests, Hopkinson bar tests and tensile tests.
For plain carbon steel with 0.45% carbon, Jaspers and Dautzenberg [12] have determined the constants of the Johnson-Cook equation using the data obtained from their experiments.
For the considered steel and strain rate range, the authors were unable to find experimental data to compare with the predicted results.
According to their data, for strain rates above 500 s-1, a clear linear relationship can be seen between the flow stress and strain rate.
The major difficulty encountered in these considerations is the scarcity of the required experimental data.
Online since: October 2010
Authors: V.M. Andreev, V.D. Rumyantsev, Yu.V. Ashcheulov, N.Yu. Davidyuk, E.A. Ionova, P.V. Pokrovskiy, N.A. Sadchikov
The data are in the relative units for better comparison of the curves.
On the other hand, dispersion of the photogenerated voltages in the cells within a string leads to reduction in PV conversion efficiency.
Advantage of such an arrangement is reduction of wind pressure on a frame with modules in different tracker positions during a day.
Online since: October 2010
Authors: Ping Hu, Ning Ma, Zong Hua Zhang
Introduction Nowadays, the demand of coupling performances with cost reduction, safety, respect of environment and energy saving is stronger and stronger in the automotive industry.
Then HSS can meet the need of higher passive safety and weight reduction.
Yang, et al: Material Property Data for More Effective Numerical Analysis, edited by B.S.
Online since: October 2010
Authors: Akio Kagawa, Akihiro Nakai, Masayuki Mizumoto
It is known in our earlier work that a reduction in thickness of the alloy is effective to reduce the effect of Up-hill diffusion.
This may be caused by a reduction of the effect of Up-hill diffusion which disturbs hydrogen diffusion in a distorted host lattice.
References [1] Y.Ohsumi, in: Data book of hydrogen storage alloys (Yono-shobo, Tokyo 1987), p.92 [2] T.
Online since: August 2011
Authors: Hai Chen Lin
The parameters listed in Table 2 are derived from experimental data [4].
The main advantage of replacing glass fibers with carbon fibers is reduction in blade weight, as shown in figure 4.
The main advance of replacing glass with carbon fibers is reduction in blade weight, show in figure 4.
Online since: April 2011
Authors: Jorge Salguero Gómez, Moises Batista, Jose Antonio Sanchez Galindez, Mariano Marcos
In order to characterize the adhesion effects and, after that, to have sufficient data for formulating a BUL-BUE formation model, X-Ray Photoelectron Spectroscopy (XPS) techniques were applied to the tools and to selected chips after each dry drilling process.
After this, reaction conditions for forming Ti2O3 and TiO, can be provoked, or progressive reduction of Ti (4+) to Ti(3+) and Ti(2+) can be taking place once the primary oxide film is developed.
On the one hand they can be formed by Ti (4+) reduction.
Online since: May 2011
Authors: Jun Shuai Huo, Yi Jun Geng, Zhi Qiang Yu
The soil possesses the characteristics of weathered, water softening and sharp reduction in strength [9-11], presents the appearance of mostly red, dark red, brown or other colors.
As the weathered red sandstone soil was featured by sharply reduction in strength under the weathered, water soften conditions, it is important to carry out water stability test.
Table 3 The data of water stability test immerse age[d] Cement mixing ratio [%] EN-1 mixing ratio [%] [Mpa] [Mpa] [%] 1 0 0 0.85 / / 1 4 0 1.82 1.47 0.81 4 4 0 1.82 1.21 0.66 7 4 0 1.82 1.21 0.66 1 4 0.014 1.82 1.56 0.86 4 4 0.014 1.82 1.35 0.74 7 4 0.014 1.82 1.36 0.75 a.
Online since: September 2011
Authors: Yi Lun Liu, Fu Sheng Mu
The reduction ratio is up to 4 ~ 30: it is easier to achieve the desired reduction ratio by adjusting the static monment of device. 2.
The experiment method drop behind foreign and basic reaserch data isn’t enough.
Online since: September 2003
Authors: Hans Kurt Tönshoff, Berend Denkena, H.H. Apmann
The temperatures in the contact zone are beneath 500ć, which has been verified in tests with thermocouples in the contact zone. 36 Machining of Natural Stone Materials Fig.3 Wear of the wire sawing tool beads machining steel components Macroscopic Wear The reduction of the tool diameter and the conical generation of the cutting bead can be seen as macroscopic wear.
The diameter reduction of the sintered cutting beads during wire sawing of austenitic steel is much higher than using electro-plated beads [17].
Key Engineering Materials Vols. 37 Fig.4 Cutting capacity depending on working pressure Different Diamond Concentration at Wire Sawing Tools The concentration data indicates the volume of diamond in the grinding layer.
Online since: December 2012
Authors: Jun Deng, Yan Hui Xu, Hua Jiang, Shao Bo Hu
The data of coal seam obtained during CBM extraction can be used to enrich the information of coal mine, such as water, rock structure and coal seam structure, which assists to solve the other kinds of problem of coal mine disaster.
Even in the background of implement of energy-saving and emission-reduction and energy consumption control policy, the domestic coal consumption still increases by 200 million ton every year.
CBM development and utilization is beneficial to the alleviation of China’s energy tensions and the reduction of environment pollution to mining area, and it also beneficial to the safe production and financial profits.
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