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Online since: January 2012
Authors: P.S. Pa
One can expect to make an effective evaluation on the processing features, as well as to set up the complete data of processing parameters.
The amount of the reduction after the compound processes of burnishing and electrochemical finishing is 0.02mm.
Online since: June 2011
Authors: Liang Xi Xie, Jian Yi Kong, Li Qian, Guo Zhang Jiang, Gong Fa Li
The range of the contact pressure is 0.31~1.11 MPa.The degree 4 polynomial of the contact pressure distribution is yielded via regression analysis as follows (6) Fig.4 The original contact pressure and the fit Fig.5 EHL film distribution (V=1.9 mm/s) Fig.4 is the plot of the original data and the fit.
Acknowledgment The project is supported by the open fund of Research Center of Green Manufacturing and Energy-Saving & Emission Reduction Technology in Wuhan University of Science and Technology (fund No.
Online since: July 2013
Authors: Li Yun Zhang, Zheng Ron Xiao, Jun Liao
In order to be able to meet the requirements in a small mobile phone ,multi-band, wide band and multi-antenna technology have become a hot research.[1] However, The reduction of the antenna’s dimension will make the bandwidth of the antenna is narrowed, Radiation performance will deteriorate.[2] The performance deterioration of the antenna will affect the communication system, sometimes, normal communication system will not be communicated.
When the bandwidth of the antenna is narrow, therefore, improved focus considered this point, according to the same theory, the software build simulation initial model, we simulated a large number of the antenna, and it is finally obtained the ideal simulation results, as shown in Fig 7 Figure 7 Antenna structure diagram We analyses the simulation data, and compared with results in figure 8 : Blue trace is initial simulation result, purplish trace is final result.
Online since: August 2013
Authors: Jian She Yang, Xiao Dan Ke
The function includes adsorption,retention, filter,oxidized reduction,sedimentation,microbe disintegration,conversion,plant shroud,the accumulation of residual,steam and nutrient absorbed and the other kinds of animal functions.
Although, this process initial effect is poorer, including the grate influence of water temperature, a long time to fully mature for system, the larger cover area, and the lack of long-term operation monitoring data.
Online since: June 2018
Authors: Joerg Pezoldt, Bernd Hähnlein, Manuel Auge
The slight reduction of the reflectivity in the reststrahlen region and the marginal change of the reflectivity in the wavenumber region between 1000 and 1700 cm-1 agree with the simulation and are caused by the formed graphene layer.
The fit of the presented model to the experimental data is shown in Fig. 3 for both s- and p-polarization.
Online since: December 2012
Authors: Shamsuddin Sulaiman, Amer N.N. Kakahy, D. Ahmad, M.D. Akhir, A. Ishak
Other study showed a continuous reduction of specific energy with increasing rake angle for maize stalks which indicated that a value of at least 30° was required with an optimum at approximately 50°.
Data were analyzed statistically using ANOVA and the least significant difference LSD calculated at 1% to estimate the differences between the averages.
Online since: September 2014
Authors: E.A. Nazarova, A.G. Syrkov, V.N. Brichkin
This is accompanied by decrease the friction force many times that recorded the acoustic method for a proportional reduction of the integral index of friction D.
More importantly the binding energy of N1S level in a sample with a bilayer nanocoating is higher by 2 eV (on XPS-data).
Online since: December 2014
Authors: Hong Xia Yu, Ning Qing, Shi Yang Ding
Great amount of data show that building energy consumption in such passive residence can be further reduced through a series of technologies.
The actual measurement indicates that the ecological apartment can save 75.8% of energy; and in the heating season, 50GJ of thermal energy is converted from the solar energy; with the apartment heat consumption index of 9.23, and coal consumption index of 4.50, the CO2 emission reduction is approximately 180 tons per year[2].
Online since: July 2015
Authors: Diana Irinel Băilă
The low granulometry of powder allows a better control of the thermal gradient during the contact between the material and the laser, providing the following advantages: - an excellent material quality and surface status; - limited mechanical stress within the part being produced; - increased definition of the details; - reduction in size of production supports.
This process allows for highly complex geometries to be created directly from the 3D CAD data, fully automatically, in hours and without any tooling.
Online since: September 2013
Authors: Matheus S. de Freitas, Paulo Inforçatti Neto, Jorge V.L. Silva, Pedro Y. Noritomi, Zilda Castro Silveira
The American Society for Testing and Materials (ASTM) define Additive Manufacturing (AM) as the “process of joining materials to make objects from 3D model data, usually layer-upon-layer, as opposed to subtractive manufacturing” (ASTM F2792-10, 2010) without the need of conventional process planning as used on machining or conformation processes.
Conclusions The main advantage of the use of design methodology techniques is the reduction of the time of the design development; besides, there is a contribution to the design quality.
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