Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: October 2010
Authors: Jian Zhong Zhou, Yu Jie Fan, Deng Hui Wei, Shu Huang, Min Wang
Meanwhile, for micro-size laser beams, the size of the laser-target interaction zone is of the same order of magnitude as the grains of the most commonly metals.
Besides the basic parameters, such as laser intensity, spot size and the number of pulses etc, considering the anisotropic of single crystal material and crystal orientation, the direction of shocked line and spacing between successive pulses are also have a direct affect on the dent geometry and the characterization of residual stress. 4) Others.
As shown in Fig. 3, the pulse duration was 50ns, spacing between successive pulses along a shocked line was 25µm, and pulse numbers were 3 on each shocked location at 1 KHz pulse repetition rate.
Online since: May 2011
Authors: Maria Dolores Alves Cocco, Gabriella Patto Xavier Gonçalves
Initially, they were sun dried, ground, and classified in a granulometer by sediment grains of less than 0.42 mm.
From the results, a number of samples were selected for analysis by electronic scanning microscope with a view to comparing the microstructures of the acid serum-based mortar [8].
Given the sheer number of structures on the planet is taken into account, in particular in developing countries, the method would allow for the effective reuse of 60,000 tons of acid serum per day.
Online since: March 2013
Authors: Juan Shi, S.Q. Bai
Dividing the number of teeth is 5.
Each tooth sequentially numbered, then teeth scanning sequence: 1 - 6 - 11 - 16 - 21 - 2 – 7… The same side surfaces of the gear can be completed cladding by 23 times dividing.
Grain forming and have no chance to grow up in rapid solidification[2].
Online since: July 2011
Authors: Hsiung Cheng Lin, Liang Yih Liu, Kuo Hung Pai
That is why there are a large number VB applications or other graphical software packages even extending remote capability to be found in a variety of areas [14-21].
The analog voltage from the variable-resistor connecting with the pulley is proportional to the amount of water or feed level and is converted into a digital number via the A/D converter.
[15] De-An Zhao, Tian-Hong Pan, Jian-Yun Zhu, Qing Wang, “Identification Of Grain Mildewing With ANN Pattern Recognition Software Based On VB And Matlab”, IEEE International Conference on Networking, Sensing and Control (2008) , pp. 808-811
Online since: January 2013
Authors: Jing Jing Feng, Xiao Qing Wang, Cui Ling Zhou
Through a large number of observations, it can be realized that initial cracks are the main cracks which formed the crack distribution network.
Discussion Hardened cement paste is mainly composed of hydration products and unhydrated clinker grains, as well as free water and air voids.
Acknowledgements The authors gratefully acknowledge the financial support of the Natural Science Foundation of Shandong Province (project number ZR2012EEQ014).
Online since: October 2007
Authors: M. Tanaka, Kazuo Shinozaki, Takanori Kiguchi, Naoki Wakiya, Shogo Hayashi
That structure is ideal because optical losses can arise from the scattering of propagating light at surfaces, interfaces, and grain boundaries.
Reduction of the number of droplets was attained using this method[2] but the smoothness of the thin films was insufficient for light propagation.
Double-pulse excitation PLD by which the defocused excimer laser was irradiated after YAG laser irradiation with 0.6 µs delay reduced the number of droplets in the film, but the obtained film was insufficiently smooth for optical measurement.
Online since: April 2014
Authors: Dorota Szwagierczak, Katarina Cvejin, Libu Manjakkal, Jan Kulawik, Krzysztof Zaraska
The obtained perovskite powders with micrometer grain size were mixed with ethyl cellulose and terpineol in an agate mortar, in order to prepare pastes for screen printing.
Using the Nernst relationship: , (1) where R is the universal gas constant, T is the absolute temperature, n denotes the net number of negative charges involved in the electrode reaction, and F is the Faraday’s constant, if both partial pressures, and , are known, one can calculate the slope that represents the dependence of the generated EMF on the temperature.
Acknowledgement This work was financially supported by European Commission in the framework of the FP7 project SENSEIVER, grant number 289481.
Online since: August 2013
Authors: Voicu Mager, Nicolae Bâlc, Mathias Fockele, Dan Leordean, Mircea Cristian Dudescu
These blocks consist of periodic cells in a scaffold-like structure, in which each cell is based on a number of truss elements or beams connected to each other.
A number of researchers developed some techniques to fabricate scaffolds, because the porous materials have an additional desired effect on promoting bone ingrowth [6].
Commercially Pure Porous Titanium (CPPTi) powder was used, with a grain size distribution in the range 20 – 63 μm (TLS Technik GmbH-Germany). 75 W Laser power, 30 μm point distance (PD) and 60 μs exposure time (ET) as parameters for the machine and the new command “ Point structure “ of the ReaLizer Software were used .
Online since: February 2012
Authors: Bing De Wang, Ying Liu, Hai Cheng Wang
A number of important precision tubes are used as the key components in rocket, plane and other aircraft, such as aircraft engine, corrugated pipe and conduit [1-2].These pipes require high strength, high toughness, high temperature properties, creep-resisting, fatigue resistance, corrosion resistance and high damage tolerance.
Thus uniform microstructure with fine grain can be obtained.
Compared with the traditional stamping and welding processes, hydroforming has many advantages, such as reducing weight and saving material; reducing the number of parts and dies; reducing the post treatment including machining and welding; the strength and stiffness improved, especially the fatigue strength.
Online since: June 2020
Authors: Feng Xing, Xian Feng Wang, Zhen Hong Yang, Ning Xu Han
Lightweight aggregate was obtained from Jiangmen with a grain size of 3-8mm and a saturated water absorption rate of 44.30%.
In Fig. 5 (b), there were a large number of parallel rhombohedral crystal 15 mm from the crack mouth.
A large number of amorphous products containing Ca and Si also appeared in the crack.
Showing 23451 to 23460 of 28673 items