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Online since: February 2011
Authors: Chun Bao Sun, Li Jing Sun, Ke Liang Wang, Yang Liu
From the production data of Nan 2-1-P132 well what got before and after the experiment, it showed that when the non-metallic composite wear resistant coating tubes were put into using, the upload dropped obviously, and the download increased a little, and the swabbing was further improved.
(4) NHW-1 type coating tube has good wear resistance, wear reduction and corrosion resistance, it has double protection effects on tube and rod, and also it is a new and advanced technology in preventing eccentric wear on the field nowadays.
(4) NHW-1 type coating tube has good wear resistance, wear reduction and corrosion resistance, it has double protection effects on tube and rod, and also it is a new and advanced technology in preventing eccentric wear on the field nowadays.
Online since: August 2012
Authors: Jaroslaw Piątkowski, Roman Przeliorz
Discussion of results
The analysis of literature data [14, 15] indicates that on the surface of WE43 alloy the following reactions can take place:
(2)
(3)
Additionally, the reaction of transformation of magnesium oxide into yttrium oxide is possible:
(4)
Under the experimental conditions, in the atmosphere of CO2 + 0.1% CO, the equilibrium partial pressure of oxygen was pO2=10-17 Pa and thus was higher than the dissociation pressure of MgO and Y2O3 oxides.
The selective oxidation of magnesium can promote the reduction of MgO by Y (reaction 4), because partial pressure of oxygen at the MgO/Mg interface is lower than the dissociation pressure of MgO, but higher than the dissociation pressure of Y2O3.
The selective oxidation of magnesium can promote the reduction of MgO by Y (reaction 4), because partial pressure of oxygen at the MgO/Mg interface is lower than the dissociation pressure of MgO, but higher than the dissociation pressure of Y2O3.
Online since: April 2005
Authors: M. Biscondi, Krzysztof Wolski, Pascal Berger, N. Marie, V. Laporte
The purpose of this presentation is to provide new experimental data on the Ni-Bi system,
concerning first, the bismuth transition profile as analysed by AES and RBS, second, the kinetics of
IGP and finally, to discuss these results with respect to the possible mechanism of IGP.
Microspot RBS with the spatial resolution of one micrometer has been used to measure the evolution of the amount of bismuth across a narrow transition zone in the specimen heat treated for 1h at 700°C and slowly cooled to room temperature (such a procedure activates sulphur segregation induced brittleness and, due to the substantial reduction in the micro-roughness, increases the accuracy of RBS analysis).
Microspot RBS with the spatial resolution of one micrometer has been used to measure the evolution of the amount of bismuth across a narrow transition zone in the specimen heat treated for 1h at 700°C and slowly cooled to room temperature (such a procedure activates sulphur segregation induced brittleness and, due to the substantial reduction in the micro-roughness, increases the accuracy of RBS analysis).
Online since: June 2007
Authors: Jing Zhou, Zhi Qiang Hu, Ying Fang Fan
Since the weakening of a structure can be characterized by a reduction in stiffness, which in
turn will lower the frequencies and influence other modal properties.
Comparing with the field monitoring data, the reliable bridge model that can well reflect the actual mechanical properties of the original structural is achieved.
Comparing with the field monitoring data, the reliable bridge model that can well reflect the actual mechanical properties of the original structural is achieved.
Online since: April 2012
Authors: Yves Wouters, Sébastien Chevalier, P. Phakpeetinan, M.R. Ardigo, Valérie Parry, Ioana Popa, Walairat Chandra-Ambhorn
Recent advances in the development of electrolyte-electrode materials allowed the reduction of operating temperature to 800 °C and enabled the use of metallic interconnects, which have higher electrical and thermal conductivities, easier shaping and lower cost, compared to ceramic materials [3-6].
As HTE is a reverse process compared to a SOFC, literature data dealing with SOFC interconnects can be considered.
As HTE is a reverse process compared to a SOFC, literature data dealing with SOFC interconnects can be considered.
Online since: July 2012
Authors: Michal Mazur, Frank Placido, Steffen Lapp, Eugeniusz Prociow, Danuta Kaczmarek, Jaroslaw Domaradzki, Damian Wojcieszak
However, the increase of sputtered particle energy in the HERMS process results in densification of thin film structure and a reduction of deposition rate as compared to films from the LPHTRS process [22].
For analysis of experimental data WSxM ver. 4.0 software was used [23].
For analysis of experimental data WSxM ver. 4.0 software was used [23].
Online since: December 2012
Authors: Kai Ning Chen, Xiao Zhi Gu, Wei Huang, Xiang Bai, Cheng Xin Fan
Measured apparent benthic fluxes (MABF) were determined from incubation time-series concentration data by regressing the change in overlying water concentration versus time.
Based on the results obtained in the present work, emergent macrophytes (e.g., phragmites australis) in estuary wetlands could efficiently enhance dissolved P removal from sediments by the pathways of source reduction and end retention, that’s to say, reduced dissolved reactive phosphorus in porewater, simultaneously, imposed the diffusive obstacle that dissolved reactive phosphorus freely crossed sediment-water interface by adding organic matter contents in surface sediment.
Based on the results obtained in the present work, emergent macrophytes (e.g., phragmites australis) in estuary wetlands could efficiently enhance dissolved P removal from sediments by the pathways of source reduction and end retention, that’s to say, reduced dissolved reactive phosphorus in porewater, simultaneously, imposed the diffusive obstacle that dissolved reactive phosphorus freely crossed sediment-water interface by adding organic matter contents in surface sediment.
Online since: August 2015
Authors: Iman Eslami Afrooz, Dennis Ling Chuan Ching, Chandra Mohan Sinnathambi, Saravanan Karuppanan
(26)
The values a, b, c, and d for the empirical formula has been calculated using data from ultimate analysis.
Bleek, Bubble Size Reduction in a Fluidized Bed by Electric Fields, International Journal of Chemical Reactor Engineering. 1 (2003) 1-14
Bleek, Bubble Size Reduction in a Fluidized Bed by Electric Fields, International Journal of Chemical Reactor Engineering. 1 (2003) 1-14
Online since: March 2015
Authors: Jie Chen, Jun Hui Wu, Hui Ping Si, Kai Yan Lin, Zhen Dong Wu
P
Choke value
Back pressure value
External heating source
N2
Air inlet
Electronic valve
Gas outlet
T2
T2
T1
Stainless steel cylinder
The reactor
The data collection
Figure3: External heated fixed-bed pyrolysis carbonization furnace
(5) Spiral Carbonizer Spiral carbonizer is designed by Jinmei Wang etc.[22] who is from Lanzhou institute of chemical physics, Chinese academy of sciences.
India bora institute of technology developed internal combustion lower-inhale biomass pyrolysis equipment, used the water seal device for the seal, furnace body was divided into drying, pyrolysis, oxidation and reduction, can achieve gas, oil, carbon efficient co-production [26].
India bora institute of technology developed internal combustion lower-inhale biomass pyrolysis equipment, used the water seal device for the seal, furnace body was divided into drying, pyrolysis, oxidation and reduction, can achieve gas, oil, carbon efficient co-production [26].
Online since: July 2015
Authors: Christof Sommitsch, Gajanan P. Chaudhari, Sameer K. Nath, Pramod P. Bhingole, Surya Deo Yadav
The proof stress/yield strength (σ02) was estimated from the stress strain data taking the flow stress at 0.2 pct offset strain, while σmax was the maximum value of flow stress.
With merely 2wt. pct of reinforcement, at 4.9 N load, there is about 13 pct reduction in wear rate as compared to that of the base alloy.
With merely 2wt. pct of reinforcement, at 4.9 N load, there is about 13 pct reduction in wear rate as compared to that of the base alloy.