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Online since: June 2004
Authors: Mehran Mehregany, Christian A. Zorman, Xiao An Fu, J. Dunning
X-ray photoelectron spectroscopy (XPS) measurements were used to analyze the chemical composition using a Perkin-Elmer 5500 XPS system that was configured with an Al Kα line X-ray source at 1486.6 eV.
A 200 nm-thick Al film was deposited on the poly-SiC film and patterned into an etch mask by photolithography and wet etching.
Finally, the Al mask was removed by an Al etchant and the cantilever beams were released by dissolving a portion of the underlying Si substrate in a HF/HNO3/CH3COOH (HNA) solution.
El Felk, E.
Online since: February 2008
Authors: A. Sellai, H. Widatallah, O.A. Yassin, M. Elzain
Elzain 1 1 Department of Physics, P.O Box 36, Sultan Qaboos University, 123 Oman 2 School of Physics & Applied Physics, El-Neelain University, Khartoum, 11121 Sudan Abstract.
Rossi, et al.: Mater.
Canfield, et al.: J.
Chunying, et al.: J.
Téllez, et al.: Physica C Vol. 408-410 (2004) p. 394
Online since: November 2011
Authors: Uwe Erb, G. Cingara, S. Wang, I. Brooks, G. Palumbo, J.L. McCrea
For example, Maiti et al. were able to calculate the Kapitza resistance of a grain boundary in Si bicrystals using molecular dynamics simulations [8].
Soyez et al. observed that yttria-stabilized zirconia (YSZ) showed a strong reduction in thermal conductivity when the grain size decreased below approximately 40 nm [9].
Yang et al. also studied the grain size effect and estimated the Kapitza resistance of grain boundaries in nanocrystalline YSZ.
A comprehensive study by McCrea et al. has shown that the electrical resistivity in nanocrystalline nickel is strongly affected by grain size when it decreases below 100 nm [11].
El-Sherik, US Patent 5,352,266 (1994) [2] G.
Online since: April 2020
Authors: Nurjanah Nurjanah, Endang Saepudin
This method was developed based on the experiments performed by Elmegeed et al. (2015) [11].
First, the 0.44 g (1 mmol) of curcumin-isoxazole, which was previously synthesized using the method developed by Changtam et al. in 2010, and sulfanilamide (0.50 g, 2 mmol) were mixed with glacial acetic acid (1.5 mL).
According to the categorization by Washington et al. (1979) the bacterial response to the test compound is divided into three parts, i.e., resistant (≤9 mm), intermediate (10-11 mm), and sensitive (≥12 mm) [15].
Al-Nuri, A.S.
El-Kady, Synthesis of novel steroidal curcumin derivatives as anti-Alzheimer’s disease candidates: evidences-based on in vivo study, Steroids. 101 (2015) 78–89
Online since: July 2019
Authors: Jae Hoon Kim, Sang Hyun Hong, Sang Deok Kim
Tanaka [5] proposed the equivalent stress intensity factor based on the Bilby–Cottrell–Swinden model proposed by Bilby et al. [6].
It is the most commonly used Tanaka model and is presented in the following equation: ∆Keq=(∆KI4+8∆KII4)1/4 (2) Yan et al. [7] proposed the following equation based on the maximum tangential stress criterion method, which is a mixed mode failure criterion [8]: ∆Keq=12cosθ2∆KI1+cosθ-3∆KIIsinθ (3) Borrego et al. [9] introduced a variable U in their equation to include the effect of crack closure.
Table 1 Chemical compositions of nickel based powder metallurgy superalloy (wt%) Ni Cr Co Mo Al W, Nb, Ta, Ti C Bal. 16.5 13 2.5 2.5 6.8 0.02 Fig. 1 Configuration and dimensions of CTS specimen (mm) Fig. 2 Configuration and dimensions of loading device and test set up Table 2 Mechanical properties of nickel based powder metallurgy superalloy Temperature E (GPa) σYS (MPa) σUTS (MPa) E.L. (%) R.A. (%) ν Room temp. 213 1,228 1,558 25.3 20.3 0.27 Experimental Procedures.
Online since: July 2014
Authors: Bhagwat Gore, Madhukar Tandale
Sharma et al.
S.D.Sharma et al, 2005 develop set up of cooking system based on evacuated tube solar collector shown in fig 3A.In this set up Erythritol is used as PCM and during sunshine hours, heated water transfers its heat to the PCM and is stored in the form of latent heat through a stainless steel tubing heat exchanger [5].
(Mg(NO3)O2) 6H2O 89 134 FPC 142 2 2012 L.Antonio et al [6].
Paraffin 100 165 Parabolic 152 3 2013 L.Antonio et al [6].
El.
Online since: September 2018
Authors: Victor A. Volosukhin, Vladimir V. Vanzha, Mikhail A. Bandurin
., El-Sayed, M.I. and M’nif, A., Assessment of water quality in surface waters of the Fayoum watershed, Egypt, Environmental Earth Sciences. 74 (2015) 1765-1783
P., Al-Dzhabobi, S.
F., Al-Khadzh, M.
P., Al-Dzhabobi, S.
F., Al-Khadzh, M.
Online since: January 2005
Authors: Hong Po Kim, Uh Chul Kim, Jang Ho Bae, Chang Wan Won, Kyung Mo Kim, Eun Hee Lee
Partridge et al. [2] analyzed SG tube failure data for a number of plants in terms of whether or not H3BO3 mitigates IGA/SCC.
Chemical compositions of the materials in wt [%] Material C Ni Cr Fe Si Mn S Cu Ti Al 600 MA 0.04 75.3 15.2 8.03 0.3 0.21 0.001 0.12 - 0.22 600 TT 0.02 73.7 15.1 9.21 0.32 0.3 <0.001 0.01 0.36 0.26 690 TT 0.02 59.6 30.0 9.26 0.36 0.31 0.001 0.01 0.33 0.023 800 MA 0.01 33.9 22.3 Bal. 0.53 0.53 0.003 0.03 0.45 0.17 Table 2.
Data from Fang et al. [7] indicated that the height of the PSCC was related to the possibility of a SCC occurrence and was proportional to the intensity of the SCC.
Briant et al. [11] reported that the initial microstructural changes of alloys produced by heat treatments affected the SCC susceptibilities of the alloys.
O'Toole, and E.L.
Online since: August 2012
Authors: Ying She Luo, Sheng Ming Chen, Yong Zhong Zhang, Jian Xin Su
Shamarka et al [1] studied the thermal image prediction by using an infrared thermometer.
Alam et al [2] utilized a gradient-based registration algorithm in MATLAB to estimate the shifts of moving frames.
He et al [3] discussed three kinds of methods to call MATLAB in the Visual C.
El Shamarka, M.
Online since: January 2015
Authors: Bin Guo, Yong Ping Jin
Kumar, et al: Journal of Materials Science (2009), p. 1393 – 1400
El-Badry, A.M.
Sanad, et al: Wear Vol. 253 (2002), p. 699 – 710
Lee, et al: Tribology Letters Vol. 27 (2007), p. 301 – 306
Showing 4941 to 4950 of 9704 items