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Online since: October 2004
Authors: B.J. Duggan, Y.Y. Tse, G.J. Shen
A second experiment using electrolytically pure copper was performed and this involved cold rolling to 90% reduction and annealing to give a strong cube texture.
Clearly the simplest explanation for this data is the theory outlined.
Online since: November 2012
Authors: Dao Yuan Pan, Xiang Gao, Chang Gao Xia, Hua Ding
The energy distribution across different modalities from Table 4 is the result of Formula 5 by using Table 3's data of model.
Vibration reduction on city buses: Determination of optimal position of engine mounts[J].
Online since: December 2010
Authors: Wei Zhang, Min Wei Zhu, Tao Tao Shan
Parallel Computing Traveling Wave Effect on the Seismic Response of 3D Valley Topography Site under Long-Period Seismic Excitation Wei Zhang1,a, Minwei Zhu2,b and Taotao Shan1,c 1State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092,China 2Department of Civil Engineering, Taiyuan University of Technology, Taiyuan 030024, China azhweizi@126.com, bsxtyzmw@163.com, cclark_tao@163.com Keywords: long-period seismic wave, 3D Valley topography site, equivalent linearization, traveling wave excitation, parallel processing Abstract.
The approach is to divide the computational domain into a number of subdomains which is assigned to different processor, and processors exchange boundary data by using explicit communication tools, specifically, message passing interface.
Online since: June 2012
Authors: Qi Sheng Zhang, Ming Jie Guan, Lu Wang
The reduction of moisture and increasing of fixed carbon are beneficial to enhance heating value of charcoal.
By the Eq. 8, α could be calculated from the corresponding TG curve and the constants B and C are estimated by the TGA data of the stage using Microsoft Excel.
Online since: July 2014
Authors: Lauro Paulo Silva Neto, Jose O. Rossi
With satellite application, NLTLs have been studied with the purpose of replacing the travelling wave tube amplifier (TWTA) and solid state power amplifier (SSPA) used for image transmission data and communications with ground station (tracking and control center).
This effect in NLTLs is explored for the output pulse rise time reduction if the input pulse has a frequency below the line cut-off frequency.
Online since: December 2012
Authors: Prasert Suwanvitaya, Watcharin Witayakul, Patcharaporn Suwanvitaya, Prinya Chindaprasirt, Parames Kamhangrittirong
Influencing factors on the drying shrinkage The data of drying shrinkage strains of high calcium fly ash geopolymer pastes versus sodium silicate to sodium hydroxide ratio are plotted in Fig. 2.
The reduction in liquid portion of the mix also reduced the water content of the mix and the water to fly ash ratio (W/FA) as shown in Table 3.
Online since: January 2011
Authors: Zi Hong Yin, Yuan Fu Li, Yan Li
μ=a(Q’/Q)+Q’’/Q (4) Where: Q’= the navigation quantity of vessel sailing down; Q’’=the navigation quantity of vessel sailing up; Q=Annual navigation quantity; A=the revision coefficient of sailing up and down, exist collision statistical data using 3.
Table 2 VCB risk assessment criteria Risk Level 1 2 3 4 Description Negligible risk Low risk Medium risk High risk Interval probability P<5×10-7 5×10-7≤P<5×10-5 5×10-5≤P<5×10-3 P>10-3 Control Program Daily management and review Attention to risk management and control Recommend risk reduction measures Changes of design or to take collision avoidance measures Conclusions and recommendations The traditional AASHTO model does not consider factors of ship type, gale and fog, the value of the probability of ship impact is larger than the actual value.
Online since: February 2013
Authors: Wojciech Jurczak
Fig.1.OCDS installed in selected areas marked 1,2,3,4 (cracked) of aluminum (alloy 7020) superstructure of the design ship 620 and set-up: Data Logger (voltage recorder with its own memory and power supply ), separator and the mini electrochemical cell with electrolyte, which was attached to the crack of the base metal and welded joints This system is developed for metallic materials, which have natural (or artificial) tendency to form on its surface, dense, well adherent, passive oxide film.
As a result of the exposure to the stress corrosion cracking tests the joints (made for g=6 mm sheets) of the 7020M alloy welded with the SPA20 binders by automatic TIG method revealed lower mechanical properties as compared to the ones before exposure (see Fig.6): melt 507 KRm = 12,5%, KA5 = 43,6%, melt 635 KRm = 10,9%, KA5 = 29,5%, where:is the mean percentage reduction of the tensile strength after the corrosion exposure, stands for the mean percentage of plastic elongation of the test samples (A5) after the corrosion exposure.
Online since: September 2013
Authors: Junaidi Syarif, Zainuddin Sajuri, Amirhossein Baghdadi
ACC tubes demonstrated the same trend as Cu phosphorus alloy where the grooved samples showed reduction in yield stress as compared to the plain tubes.
From all these data obtained, it can be concluded that the tensile properties of tube samples were not influenced by the size (diameter) of the samples since normalized all stresses were with the corresponding cross-sectional area of the tube.
Online since: September 2014
Authors: Nilkanta Barman, Himadri Chattopadhyay, Akshaya Kumar Nayak
Introduction Recently, the Semisolid Metal Forming (SSM) has emerged as a beneficial manufacturing technique which offers several advantages over other conventional casting techniques such as redistribution of macrosegregation, reduction in porosity, low forming efforts, and increased strength and/or elongation.
The thermo-physical properties of the NH4Cl+H2O solution and the system data are considered from [9, 10, 18].
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