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Online since: November 2011
Authors: Qing Dong Zhong, Yi Wang, Qiong Yu Zhou, Wei Dong Liu, Gang Chen
The reasons for this are a reduction in the amount of free iron and silicon, the presence of new phases (in particular silicides), and a decrease of the active surface area of the coatings after thermal treatment.
As a result of an approximation of the experimental data using the CPE 1 model, the following parameters could be obtained: Rp, Rs, T, ϕ, where T is the capacity parameter and ϕ is a dimensionless parameter related to the rotation of the complex plane plot, ZCPE = 1 / [(jω) ϕ T], where ω is the angular frequency of ac voltage.
As a result of an approximation of the experimental data using the CPE 1 model, the following parameters could be obtained: Rp, Rs, T, ϕ, where T is the capacity parameter and ϕ is a dimensionless parameter related to the rotation of the complex plane plot, ZCPE = 1 / [(jω) ϕ T], where ω is the angular frequency of ac voltage.
Online since: August 2012
Authors: Roberto Neagu, Matias de Angelis Korb, Célia de Fraga Malfatti, Carlos Pérez Bergmann, Cibele Melo Halmenschlager
The development of solid oxide fuel cell with thin film concepts for an electrode supported design based on the yttria-stabilized zirconia has demonstrated favourable results due to its high chemistry stability in oxidization and environment reduction.
It was found that the weight loss of the sample mainly took place at the temperature range below 500 ◦C from TGA data.
It was found that the weight loss of the sample mainly took place at the temperature range below 500 ◦C from TGA data.
Online since: September 2014
Authors: Yana Salchak, Dmitriy Sednev, Michael Kroening
Ultrasound attenuation is reduction of the amplitude and the intensity, and as a consequence, of the acoustic wave as it propagates.
Characteristics of PCUS [3]: · USB 2.0 High-Speed with a maximum of 40MB/sec data transfer rate
Furthermore, a user could adjust parameters according to the inspection task to permit easy data evaluation.
Digitization of the image within which an array of data can be obtained will be produced in the Engauge program.
Acknowledgement The reported study was partially supported by Governmental program "Science", research project No. 1524 References [1] Information on http://www.rospod.ru/ [2] Information on http://www.q-net.de/english_site/P3121.html [3] Information on http://www.qnetworld.com/pdfs/PCUSpro-Single%20Data%20Sheet.pdf [4] Olga Yastrebova, Optical Flow Transducer Position Tracking for Quantitative Manual Ultrasonic Testing, Dissertation, Saarbrücken, 2011
Characteristics of PCUS [3]: · USB 2.0 High-Speed with a maximum of 40MB/sec data transfer rate
Furthermore, a user could adjust parameters according to the inspection task to permit easy data evaluation.
Digitization of the image within which an array of data can be obtained will be produced in the Engauge program.
Acknowledgement The reported study was partially supported by Governmental program "Science", research project No. 1524 References [1] Information on http://www.rospod.ru/ [2] Information on http://www.q-net.de/english_site/P3121.html [3] Information on http://www.qnetworld.com/pdfs/PCUSpro-Single%20Data%20Sheet.pdf [4] Olga Yastrebova, Optical Flow Transducer Position Tracking for Quantitative Manual Ultrasonic Testing, Dissertation, Saarbrücken, 2011
Online since: January 2012
Authors: Ying Ning Hu, Jun Lin, Jie Wen Wu, Jing Sheng Liu, Tong Lin, Shuang Li
Hatching experiments showed, the main performance indexes of ground-source heat pump incubator meet the relevant national standards, the hatchability of fertilized eggs is above 91.4% and the rate of healthy poults is above 97.9%;The whole energy-saving rate of incubator is about 60% to 65%, reducing CO2, SO2 and dust emissions, thus the effect of energy saving and emission reduction is remarkable, and achieved good social and economic benefits.
Table 2 Calculation parameters parameters values drive ratio 4.5 datum diameter of the small pulley [mm] 75 datum diameter of the big pulley [mm] 355 base length of belt [mm] 1800 actual center distance [mm] 543 centre distance range [mm] 516~597 wrap angle of the small pulley [ °] 150.45 2.3 The Design of Heating Condenser The function of condenser is to absorb heat from soil and release the heat to the interior of incubator, so as to achieve the internal heat to hatch machine.
Table 2 Calculation parameters parameters values drive ratio 4.5 datum diameter of the small pulley [mm] 75 datum diameter of the big pulley [mm] 355 base length of belt [mm] 1800 actual center distance [mm] 543 centre distance range [mm] 516~597 wrap angle of the small pulley [ °] 150.45 2.3 The Design of Heating Condenser The function of condenser is to absorb heat from soil and release the heat to the interior of incubator, so as to achieve the internal heat to hatch machine.
Online since: May 2013
Authors: Song Xiao Hui, Xu Jun Mi, Dong Geun Lee, Cheng Lin Li, Wen Jun Ye, Yong Tae Lee
Low priced Mo-Fe master alloys were introduced as alloying elements for the cost and elastic modulus reduction.
Their Bo and Md values are calculated by Eq. 1 and Eq. 2 using the data in Table 1.
Their Bo and Md values are calculated by Eq. 1 and Eq. 2 using the data in Table 1.
Online since: July 2019
Authors: Agus Dwi Anggono, Waluyo Adi Siswanto, Abdul Hamid, Pramuko Ilmu Purboputro, Masyrukan Masyrukan, Agung Setyo Darmawan
Salt spray chamber was used to measure and compare the corrosion rate of 5052 aluminum alloy with weight reduction method.
From the corrosion penetration rate data after the test with salt spray chamber for 48 hours with the NaCl concentration of 3.5 %, corrosion rate of 0.197 mm/y was obtained on 5052 aluminum alloy, while the NaCl concentration of 4% obtain corrosion penetration rate of 0.501 mm/yr, furthermore for NaCl concentration of 4.5% and 5%, the corrosion penetration rates were 0.555 mm/yr and 0.558 mm/yr respectively.
From the corrosion penetration rate data after the test with salt spray chamber for 48 hours with the NaCl concentration of 3.5 %, corrosion rate of 0.197 mm/y was obtained on 5052 aluminum alloy, while the NaCl concentration of 4% obtain corrosion penetration rate of 0.501 mm/yr, furthermore for NaCl concentration of 4.5% and 5%, the corrosion penetration rates were 0.555 mm/yr and 0.558 mm/yr respectively.
Online since: June 2020
Authors: Cristian A. Paredes, Christian G Bautista, Patricio I. Mena, Marco Antonio Paredes
The development of materials composed of horsehair as reinforcements offers similar mechanical characteristics with traditional materials such as sheet steel or polymers, but with a considerable weight reduction, ideal for automotive applications such as bodywork or interior parts of vehicles.
Data that reveal that this configuration absorbs more energy before to fail.
Data that reveal that this configuration absorbs more energy before to fail.
Online since: April 2019
Authors: Abiodun Paul Olalekan, Adewunmi Oluwasogo Dada, Oghenerobo Benjamin Akpor, Oluwasola Oribayo, Bamidele Sunday Fakinle
Analysis of variance carried out on the experimental data showed that the model was significant with a R2 of 0.9883.
Zerovalent iron nanoparticles were prepared using chemical reduction method [26-28] represented as Eq. 1: 4Fe3++3BH4-+9H2O→4Fe0↓ +3H2BO3-+12H++12H++6H2↑ (1) Rice husk supported zerovalent iron nanoparticles was prepared with FeCl3 and rice husk in ratio 1:1. 1.5525 g of washed and dried rice husk was accurately weighed and transferred into a solution of 0.023 M FeCl3 (made by dissolving 1.5525 g FeCl3 in 250 ml of deionized water and absolute ethanol mixture) in a beaker and stirred very well using magnetic stirrer for 2 hour. 0.138 M NaBH4 solution was added in drops into the beaker containing the mixture of rice husk and FeCl3 solution.
Coding of Experimental Factors and Levels Variable Symbols Coded variable levels -1` 0 +1 pH X1 4.00 7.00 10.00 Contact time [min] X2 60 180 300 Adsorbent dose [g] X3 0.50 1.25 2.00 Eq. 4 is the empirical second-order polynomial model used to fit the experimental data in order to obtain the model terms Y=β0+i=1kβixi+ i=1kβiixi2+i=1k-1j=2kβijxixj+ε (4) β0 is the constant coefficient, βi is the ith linear coefficient of the factor xi, βii is the ith quadratic coefficient of the factor xI, βij is the interaction coefficient between the independent factors, ԑ is a random error [30-32]. 17 experiments were carried out with four replicates at the central points.
Sethuraman, Biogenic robust synthesis of silver nanoparticles using Punica granatum peel and its application as a green catalyst for the reduction of an anthropogenic pollutant 4-nitrophenol, Spectrochimica Acta Part A: Mol Biomol Spectrosc 104 (2013) 262–264 [29] A.
Zerovalent iron nanoparticles were prepared using chemical reduction method [26-28] represented as Eq. 1: 4Fe3++3BH4-+9H2O→4Fe0↓ +3H2BO3-+12H++12H++6H2↑ (1) Rice husk supported zerovalent iron nanoparticles was prepared with FeCl3 and rice husk in ratio 1:1. 1.5525 g of washed and dried rice husk was accurately weighed and transferred into a solution of 0.023 M FeCl3 (made by dissolving 1.5525 g FeCl3 in 250 ml of deionized water and absolute ethanol mixture) in a beaker and stirred very well using magnetic stirrer for 2 hour. 0.138 M NaBH4 solution was added in drops into the beaker containing the mixture of rice husk and FeCl3 solution.
Coding of Experimental Factors and Levels Variable Symbols Coded variable levels -1` 0 +1 pH X1 4.00 7.00 10.00 Contact time [min] X2 60 180 300 Adsorbent dose [g] X3 0.50 1.25 2.00 Eq. 4 is the empirical second-order polynomial model used to fit the experimental data in order to obtain the model terms Y=β0+i=1kβixi+ i=1kβiixi2+i=1k-1j=2kβijxixj+ε (4) β0 is the constant coefficient, βi is the ith linear coefficient of the factor xi, βii is the ith quadratic coefficient of the factor xI, βij is the interaction coefficient between the independent factors, ԑ is a random error [30-32]. 17 experiments were carried out with four replicates at the central points.
Sethuraman, Biogenic robust synthesis of silver nanoparticles using Punica granatum peel and its application as a green catalyst for the reduction of an anthropogenic pollutant 4-nitrophenol, Spectrochimica Acta Part A: Mol Biomol Spectrosc 104 (2013) 262–264 [29] A.
Online since: May 2011
Authors: Bin Wang, Huan Jun Jiang, Yong Ying
Experimental Investigation on Damage Behavior of RC Shear Walls
Huanjun Jianga, Yong Yingb and Bin Wangc
State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, P.R.
According to the experimental data, the influence of axial compressive load ratio, stirrup ratio of the boundary column and cross-section shape on the ductility, carrying capacity, deformation characteristic and seismic damage is analyzed.
According to the experimental data, the influence of axial compressive load ratio, stirrup ratio of the boundary column and cross-section shape on the ductility, carrying capacity, deformation characteristic and seismic damage is analyzed.