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Online since: October 2007
Authors: Hong Wen Ma, Jin Hong Li, Ying Cao
Preparation and Characterization of ββββ-sialon Ceramics from High
Aluminium Fly Ash via Carbothermal Reduction-nitridation
Jinhong Li *, Hongwen Ma, Ying Cao
National Laboratory of Mineral Materials, China University of Geosciences, Beijing 100083, China
* Corresponding Email: jinhong@cugb.edu.cn (Dr.
Li) Keywords: β-Sialon, High Aluminium Fly Ash, Carbothermal Reduction-Nitridation Abstract.
In this work, β-sialon ceramics were prepared from high-aluminium fly ash via carbothermal reduction-nitridation (CRN) and the physicochemical properties of the materials such as bulk density, apparent porosity, water absorption and flexural strength were also discussed.
Combined with XRD analysis, the crystalline phase consists of SiC and AlN or AlN polytopoids. 21 Conclusion In summary, β-sialon was produced from alumina-rich fly ash at the temperature above 1400°C via carbothermal reduction-nitridation process.
[4] The statistical data comes from http://www.chinatalents.gov.cn/xmtj/detail.aspx?
Li) Keywords: β-Sialon, High Aluminium Fly Ash, Carbothermal Reduction-Nitridation Abstract.
In this work, β-sialon ceramics were prepared from high-aluminium fly ash via carbothermal reduction-nitridation (CRN) and the physicochemical properties of the materials such as bulk density, apparent porosity, water absorption and flexural strength were also discussed.
Combined with XRD analysis, the crystalline phase consists of SiC and AlN or AlN polytopoids. 21 Conclusion In summary, β-sialon was produced from alumina-rich fly ash at the temperature above 1400°C via carbothermal reduction-nitridation process.
[4] The statistical data comes from http://www.chinatalents.gov.cn/xmtj/detail.aspx?
Online since: August 2014
Authors: Xing Jun Hu, Jing Yu Wang, Bao Yu Wang, Lei Liao
The conclusions provide theoretical reference for the further study of aerodynamic drag reduction of complex underground.
In this paper, studies are focused on a real SUV vehicle model, and the drag reduction research on complex underbody was conducted to provide certain theoretical reference to the research on SUV drag reduction.
Firstly, point cloud data of the model were achieved with ATOS scanning and then reverse processed to obtain the full-scale geometric model, which is shown in Figure 1 and figure 2.
The difference between an average of the seven sets of test data and calculation results was only 1.1%, which verified the accuracy of numerical simulation results.
Flow rate increasing and lift force reducing led to the reduction of the induced drag caused by lift force, which was the root cause of the reduce of aerodynamic drag.
In this paper, studies are focused on a real SUV vehicle model, and the drag reduction research on complex underbody was conducted to provide certain theoretical reference to the research on SUV drag reduction.
Firstly, point cloud data of the model were achieved with ATOS scanning and then reverse processed to obtain the full-scale geometric model, which is shown in Figure 1 and figure 2.
The difference between an average of the seven sets of test data and calculation results was only 1.1%, which verified the accuracy of numerical simulation results.
Flow rate increasing and lift force reducing led to the reduction of the induced drag caused by lift force, which was the root cause of the reduce of aerodynamic drag.
Online since: March 2017
Authors: Vladimir Zarko, Zulkhair Mansurov, Amanbol Alipbaev, Sergey Fomenko, Roza Abdulkarimova
Magnesium diboride obtained from magnesium and boron oxide by magnesium-thermal reduction in SHS mode under the high-pressure inert gas (argon) was investigated.
Synthesis of magnesium diboride by magnesium thermic reduction of boric anhydride is another promising approach [7].
Synthesis temperatures were determined by thermocouples with recording of the data in PC.
The main reactions of boric anhydride reduction with formation of magnesium diboride in the presence of potassium chlorate have presumably the following form.
The presence of magnesium diboride in the final products of SHS is verified by the data of X- ray phase analysis and electron microscopy.
Synthesis of magnesium diboride by magnesium thermic reduction of boric anhydride is another promising approach [7].
Synthesis temperatures were determined by thermocouples with recording of the data in PC.
The main reactions of boric anhydride reduction with formation of magnesium diboride in the presence of potassium chlorate have presumably the following form.
The presence of magnesium diboride in the final products of SHS is verified by the data of X- ray phase analysis and electron microscopy.
Research of Data Reliability Technology Based on Erasure Code Redundancy Technology in Cloud Storage
Online since: April 2014
Authors: Xiao Ling Shu, Kun Huang, Li Zhang, Hong Xia Mao
The user data is divided into several data blocks which are stored in different storage nodes, based on data fragmentation method of erasure code.
The user data is divided into several data blocks which are stored in different storage nodes, based on data fragmentation method of the erasure code.
According to the principle of erasure code, the lack of a single block will not affect the data reduction, so reliability of data is improved greatly.
Reconstruction of the source data is correct, and is the same as the data before coding.
Verification of data fragmentations can ensure the reliability and integrity of the user data.
The user data is divided into several data blocks which are stored in different storage nodes, based on data fragmentation method of the erasure code.
According to the principle of erasure code, the lack of a single block will not affect the data reduction, so reliability of data is improved greatly.
Reconstruction of the source data is correct, and is the same as the data before coding.
Verification of data fragmentations can ensure the reliability and integrity of the user data.
Online since: October 2014
Authors: Noor Ajian Mohd-Lair, Abdul Kadir bin Abdul Rahman, Abdullah Mohd Tahir, Jamrin Jasmin, Alfero Sualin
In this study, data form previous maintenance works or activities were collected from both companies.
The data were then analyzed.
Data Collections and Research Methodology The data collection was started by gathering all the information from the breakdowns and maintenance records.
The similar data were also collected from the Ladang Sabah Palm Oil Mill machineries maintenance or breakdown records.
The collected data were then analyzed.
The data were then analyzed.
Data Collections and Research Methodology The data collection was started by gathering all the information from the breakdowns and maintenance records.
The similar data were also collected from the Ladang Sabah Palm Oil Mill machineries maintenance or breakdown records.
The collected data were then analyzed.
Online since: May 2004
Authors: N. Krstajić, Lj.M. Gajić-Krstajić, T.Lj. Trišović
The theory accurately predicted polarization data and glucose
hydrogenation rates.
1.
Circled points are experimental data and solid lines are calculated data using NLS fitting procedure.
It can be seen that the fitted curve for the total current, which is the sum of two partial currents, is in good agreement with the experimental data.
The experimental data are presented by circles.
The experimental data are presented by symbols.
Circled points are experimental data and solid lines are calculated data using NLS fitting procedure.
It can be seen that the fitted curve for the total current, which is the sum of two partial currents, is in good agreement with the experimental data.
The experimental data are presented by circles.
The experimental data are presented by symbols.
Online since: December 2011
Authors: Hasso Weiland
This overview outlines the reduction of quantitative texture data for the use in industrial settings.
Three different levels of data reduction applied in the daily operations will be discussed.
With such data at hand it is possible to assess the performance of a product in a customer process for example involving plastic deformation.
For process control at the pilot or plant scale quantitative texture data either need further reduction to enable texture analysis as a useful tool at the operator level.
An important aspect frequently overlooked when comparing mechanical properties to texture data are through-thickness texture gradients.
Three different levels of data reduction applied in the daily operations will be discussed.
With such data at hand it is possible to assess the performance of a product in a customer process for example involving plastic deformation.
For process control at the pilot or plant scale quantitative texture data either need further reduction to enable texture analysis as a useful tool at the operator level.
An important aspect frequently overlooked when comparing mechanical properties to texture data are through-thickness texture gradients.
Online since: December 2012
Authors: Zheng Xiang, Wei Jun Pan, Yu Tang
Introduction
Controller pilot data link communication[1] (CPDLC) is a means of communication between controller and pilot, using data link for air traffic control (ATC) communication.
Features of Controller Pilot Data Link Communication Message Exchange in CPDLC System.
CPDLC uses the concept of Data Authority[5] as shown in Fig. 2.
References [1] Rehmann A: Airborne Data Link Operational Evaluation Test Plan.
[6] Human Engineering Guidance for Data Link Systems.
Features of Controller Pilot Data Link Communication Message Exchange in CPDLC System.
CPDLC uses the concept of Data Authority[5] as shown in Fig. 2.
References [1] Rehmann A: Airborne Data Link Operational Evaluation Test Plan.
[6] Human Engineering Guidance for Data Link Systems.
Online since: October 2014
Authors: Yan An Yang, Guang Ju Hao, Xue Mei Li
Control of land planting structure and use of low carbon new energy are the main direction of rural carbon emission reduction in the future.
Data acquisition and methods Data acquisition The data on the carbon balance of agricultural ecosystem in seven typical towns around Yuqiao Reservoir originated from the latest on-the-spot investigation and relevant literature.
The data on the carbon emission of agricultural ecological system in Ji County were calculated from the following data of seven towns in the study area in 2012, including the yields of main crops, crops sown area, the amount of chemical fertilizer application, irrigation area, farm machinery power, the amount of livestock and poultry breeding.
All the data were based on the statistical yearbook of Ji County in 2013.
Study on the Carbon Emissions of Life in Rural Area Based on Energy-saving and Emission-reduction—A Case Study of Dezhou City.
Data acquisition and methods Data acquisition The data on the carbon balance of agricultural ecosystem in seven typical towns around Yuqiao Reservoir originated from the latest on-the-spot investigation and relevant literature.
The data on the carbon emission of agricultural ecological system in Ji County were calculated from the following data of seven towns in the study area in 2012, including the yields of main crops, crops sown area, the amount of chemical fertilizer application, irrigation area, farm machinery power, the amount of livestock and poultry breeding.
All the data were based on the statistical yearbook of Ji County in 2013.
Study on the Carbon Emissions of Life in Rural Area Based on Energy-saving and Emission-reduction—A Case Study of Dezhou City.
Online since: December 2012
Authors: Ya Dong Ning, Tao Ding, Chun Bo Zhang
Then with statistical data, the change of CO2 emissions of industrial sectors can be attributed into the four factors just as the Eq.3:
(3)
where Δ is the difference between the current year and the reference which is the last year in this paper.
The energy consumption of industrial sectors is statistical data in China Energy Statistical Yearbook from 1990 to 2010.
The gross industrial output value (GIOV) of 39 industrial trades is statistical data in China Industry Economy Statistical Yearbook from 1990 to 2010 corrected as the latest values and calculated in Chinese Yuan at 2005 constant price.
The energy consumption of industrial trades is statistical data from 1990 to 2010 from China Energy Statistical Yearbook and corrected as the latest values.
The indirect CO2 emissions of per unit power and heat are calculated based on the data from energy balance sheet in China Energy Statistical Yearbook.
The energy consumption of industrial sectors is statistical data in China Energy Statistical Yearbook from 1990 to 2010.
The gross industrial output value (GIOV) of 39 industrial trades is statistical data in China Industry Economy Statistical Yearbook from 1990 to 2010 corrected as the latest values and calculated in Chinese Yuan at 2005 constant price.
The energy consumption of industrial trades is statistical data from 1990 to 2010 from China Energy Statistical Yearbook and corrected as the latest values.
The indirect CO2 emissions of per unit power and heat are calculated based on the data from energy balance sheet in China Energy Statistical Yearbook.