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Online since: August 2012
Authors: Lin Hua, Dong Sheng Qian, Zhi Qiang Zhang
Every size data during rolling process are drawn to make the curves shown in Fig. 5.
Strain is so small that heat produced can’t make up the heat loss due to conduction and radiation at the start of ring rolling stage, which results in the temperature reduction.
Strain is so small that heat produced can’t make up the heat loss due to conduction and radiation at the start of ring rolling stage, which results in the temperature reduction.
Online since: January 2010
Authors: R.J. Wiglusz, Anna Gaki, Glykeria Kakali, C. Karavangelis, W. Strek
Introduction
Lanthanum Cobaltites doped with alkali earth elements (Ca, Sr, Ba) exhibit unique properties and
are considered as promising materials for numerous applications such as catalysts for various
oxidation-reduction reactions, oxygen permeable membranes or electrodes for different
electrochemical devices such as solid oxide fuel cells [1].
These results agree with data reported in the literature; the system commonly undergoes insulator - metal transition at x≈0.2, a maximum of the conductivity is reported for x≈0.4 while for LaCoO3 the Metal - Insulator transition temperature lays at high temperatures (1000K). [10-14] 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 100 200 300 400 500 600 700 800 T (oC) logσ (S. cm-1 ) x = 0 x = 0.2 x = 0.5 Fig. 7.
These results agree with data reported in the literature; the system commonly undergoes insulator - metal transition at x≈0.2, a maximum of the conductivity is reported for x≈0.4 while for LaCoO3 the Metal - Insulator transition temperature lays at high temperatures (1000K). [10-14] 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 100 200 300 400 500 600 700 800 T (oC) logσ (S. cm-1 ) x = 0 x = 0.2 x = 0.5 Fig. 7.
Online since: November 2012
Authors: Xiang Yun, Jie Xiao
(2)
Whereby =corrosion-strength ratio ( proportion of concrete strength loss to strength of normal concrete);=concentration of corrosive medium(mol/L), =exposure time(days);=start time of strength reduction(days); =coefficient of corrosion-strength related to Composition of concrete and environment of corrosion.
(5) Whereby A, B =constants related to strength grades of concrete; f=measured strength; x=HCL contents in the test. 3.3 Corrosion Depth So far, the calculation formula of corrosion depth of concrete has been divided into two types: one is empirical equation derived from the regressive analysis of experimental data, and the other is theoretical formula derived from theoretical analysis of the corrosion process of concrete. 3.3.1Empirical equation Now, empirical equation of corrosion depth of hardening cement paste is almost delivered by a function of two main factors: c-concentration of the acetic acid solutions and t: soaking time in the acetic acid solutions.
(5) Whereby A, B =constants related to strength grades of concrete; f=measured strength; x=HCL contents in the test. 3.3 Corrosion Depth So far, the calculation formula of corrosion depth of concrete has been divided into two types: one is empirical equation derived from the regressive analysis of experimental data, and the other is theoretical formula derived from theoretical analysis of the corrosion process of concrete. 3.3.1Empirical equation Now, empirical equation of corrosion depth of hardening cement paste is almost delivered by a function of two main factors: c-concentration of the acetic acid solutions and t: soaking time in the acetic acid solutions.
Online since: July 2011
Authors: Wahyono Suprapto, Bambang Suharno, Dedi Priadi, Johny Wahyuadi Soedarsono
The study illustrated that the analytical results are validated with experimental data.
Possible reduction in the amount of porosity in duralumin with the percentage of 3.5 wt% copper is caused by a both this effects in the duralumin.
Possible reduction in the amount of porosity in duralumin with the percentage of 3.5 wt% copper is caused by a both this effects in the duralumin.
Online since: December 2013
Authors: Yong Liu, Le Bin Yin, Liang Zhong Zhao, De Yong Zhang, Song Bai Zhang, Kai Xiao
S5-1 was tested positive for catalase, oxidase, nitrate reduction, ammonia utilization, starch hydrolysis, gelatin liquefaction and citrate utilization, but negative for Voges-Proskauer test, indole production, urease, tartrate and benzoate utilization.
On the basis of the above data, strain S5-1 was identified as Rhodopseudomonas sp.
On the basis of the above data, strain S5-1 was identified as Rhodopseudomonas sp.
Online since: August 2017
Authors: S. Vijaya Kumar Varma, Putta Durga Prasad, Chakravarthula S.K. Raju, R.V.M.S.S. Kiran Kumar, S. Venkateswarlu
Sometimes the Casson fluid model is stated to fit rheological data better than general viscoplastic models for several materials [1, 2].
Animasaun et al. [9] studied the free convective hydromagnetic Casson fluid flow over an exponentially stretching surface with suction and found that the improving values of variable plastic dynamic viscosity parameter of Casson fluid corresponds to enhanced the fluid velocity and reduction of the temperature within the boundary layer.
Animasaun et al. [9] studied the free convective hydromagnetic Casson fluid flow over an exponentially stretching surface with suction and found that the improving values of variable plastic dynamic viscosity parameter of Casson fluid corresponds to enhanced the fluid velocity and reduction of the temperature within the boundary layer.
Online since: February 2018
Authors: Li Bin Liu, Guang Rui Jiang, Hai Quan Wang
Cano and D. de la Fuente, Atmospheric corrosion data of weathering steels.
Lamberigts, Surface oxide maturation and self-reduction: a new process to ensure TRIP steel hot-dip galvanizing, M.A.Baker (Eds.), Proc. of 6th Int.
Lamberigts, Surface oxide maturation and self-reduction: a new process to ensure TRIP steel hot-dip galvanizing, M.A.Baker (Eds.), Proc. of 6th Int.
Online since: April 2013
Authors: Mariyam Jameelah Ghazali, Taib Iskandar Mohamad, Wan Mohd Faizal Wan Mahmood, Ahmad Fuad Abdul Rasid
Jha [10] have studied the characteristics of noise and vibration in a motor car concluded that the major part of the sound level energy mainly caused by the engine structure and noise reduction can be achieved by more rigid and flexible structural modification.
Data of mass air flow and noise level were recorded for all three different intake valve lift that is manually actuated to a minimum lift (8.9 mm), high lift (10.46 mm) and maximum lift (12.1 mm).
Data of mass air flow and noise level were recorded for all three different intake valve lift that is manually actuated to a minimum lift (8.9 mm), high lift (10.46 mm) and maximum lift (12.1 mm).