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Online since: December 2014
Authors: Yun Liu, Zhen Jiang Zhang, Mohammed Ahmed Ahmed Al Jaoufi
Related Issues Study of Wireless Sensor Network Security Data Fusion
AL-JAOUFI MOHAMMED AHMED AHMED YUN LIU
ZHENJIANG ZHANG
School of Electronics and Information Engineering Beijing Jiaotong University
Keywords: wireless sensor networks; data fusion; attack; homomorphic encryption
Abstract: Data fusion technology is widely used in data processing due to its characteristic of less transfer data.
Chapter One Data fusion and security issues 1.1 Data Fusion Data fusion refers to the simultaneous combination of data processing parts, thus to get more valid data, to better meet the needs of users in the process.
Chapter Two Data fusion security mechanism design 2.1 Efficient data fusion security protocol Data fusion security technology is mainly divided into integrity-based data integration program, confidential-based data solutions, many of them are confidentiality-based programs.
In the current wireless sensor network data fusion protocol, mostly for safety data fusion protocol and end-point security data fusion protocol, and more based on end-use encryption, encrypted data based on hop fusion technology, and because resource-constrained wireless sensor network nodes, need to adopt Efficient Data Fusion Security Protocol (EDAA), thus ensuring data security to control data overhead [2].
Meanwhile, the use of multiple data fusion tree to collect data, and ensure data integration between tree topology can exist there must be some difference between the tree and maintain a certain distance from the apex, so that the data collision reduction could allow an attacker to steal bps integration of risk reduction around the number.
Chapter One Data fusion and security issues 1.1 Data Fusion Data fusion refers to the simultaneous combination of data processing parts, thus to get more valid data, to better meet the needs of users in the process.
Chapter Two Data fusion security mechanism design 2.1 Efficient data fusion security protocol Data fusion security technology is mainly divided into integrity-based data integration program, confidential-based data solutions, many of them are confidentiality-based programs.
In the current wireless sensor network data fusion protocol, mostly for safety data fusion protocol and end-point security data fusion protocol, and more based on end-use encryption, encrypted data based on hop fusion technology, and because resource-constrained wireless sensor network nodes, need to adopt Efficient Data Fusion Security Protocol (EDAA), thus ensuring data security to control data overhead [2].
Meanwhile, the use of multiple data fusion tree to collect data, and ensure data integration between tree topology can exist there must be some difference between the tree and maintain a certain distance from the apex, so that the data collision reduction could allow an attacker to steal bps integration of risk reduction around the number.
Online since: October 2011
Authors: Yu Ze Jiang, Yan Zhao Yang, Qing Wei Guo
According to the statistics data and planning material from the authority, the power source structure of China is analyzed and the clean power prospect is forecasted, which aim to explore occurring to CO2 emissions reduction in the power industry.
According to the above dates, we can calculate CO2 emissions data with power industry in 2010.
According to the 2010 coal consumption data of coal-fired power and CO2 emissions factor, we can save 554 million tons standard coal and reduce 1.534 billion tons CO2 emissions.
Based on the date published in IPCC reference approach, the CO2 emissions data was calculated.
According to authoritative industrial policy, energy planning and industry developing data, we analyzed the development of clean electricity and forecasted the reduction of CO2 emission.
According to the above dates, we can calculate CO2 emissions data with power industry in 2010.
According to the 2010 coal consumption data of coal-fired power and CO2 emissions factor, we can save 554 million tons standard coal and reduce 1.534 billion tons CO2 emissions.
Based on the date published in IPCC reference approach, the CO2 emissions data was calculated.
According to authoritative industrial policy, energy planning and industry developing data, we analyzed the development of clean electricity and forecasted the reduction of CO2 emission.
Online since: June 2014
Authors: Yi Wen Hou, Hong Yin Song, Li Hong Wang
Based on the non-parametric Data Envelopment Analysis (DEA) method model and total-factor framework, the study established an AP-ESER analysis system.
Due to the differences in regional economic and social development in China, basic data is not enough detailed, resulting in the applicability of many analysis methods are restricted by local region or domain.
Empirical Research This study investigated 30 provinces in China as samples for empirical research and only analyzed SO2 emission reduction apparent potential for accessibility of basic data.
This paper collected, collated and calculated or estimated the indicators in table 1 based on data of 2010, established input-output table and imported the input-output data into the AP-ESER analysis system.
Conclusion (1) This analysis system can measure the AP-ESER of each province under the situation that the basic data is not integrated in China
Due to the differences in regional economic and social development in China, basic data is not enough detailed, resulting in the applicability of many analysis methods are restricted by local region or domain.
Empirical Research This study investigated 30 provinces in China as samples for empirical research and only analyzed SO2 emission reduction apparent potential for accessibility of basic data.
This paper collected, collated and calculated or estimated the indicators in table 1 based on data of 2010, established input-output table and imported the input-output data into the AP-ESER analysis system.
Conclusion (1) This analysis system can measure the AP-ESER of each province under the situation that the basic data is not integrated in China
Online since: October 2020
Authors: Dede Zulyansyah, Sungging Pintowantoro, Fakhreza Abdul
The reduction process of laterite nickel ore is affected by the reduction potential or ratio of CO and CO2, with higher CO the higher reduction process takes places [4].
The reduction temperature and reduction time significantly affect the development of Ni and Fe particles.
The data of lateritic nickel ore composition was shown in Table 1.
Comparison of pore size to Ni content of the product Reducing agents Pore size (Angstrom) Ni content in the product (%) Coal 9.4 5.75 Coconut shell charcoal 33 8.54 Green Coke 60-100 15.23 To support pore size data, bulk density testing was performed on all three types of reducing agents.
With the reduction of Fe2O3 to Fe will increase the Fe content in the reduction.
The reduction temperature and reduction time significantly affect the development of Ni and Fe particles.
The data of lateritic nickel ore composition was shown in Table 1.
Comparison of pore size to Ni content of the product Reducing agents Pore size (Angstrom) Ni content in the product (%) Coal 9.4 5.75 Coconut shell charcoal 33 8.54 Green Coke 60-100 15.23 To support pore size data, bulk density testing was performed on all three types of reducing agents.
With the reduction of Fe2O3 to Fe will increase the Fe content in the reduction.
Online since: May 2012
Authors: Meng Qing Shen, Hui Liu, Zuo Yi Liu
Sampling and processing of experimental data.
The segments of experimental data sample including the whole test line.
Acquisition and processing of experimental data depends on MAC system, the sampling time of each segment is 6s, and it will output the maximum of derailment coefficient, rate of wheel load reduction and lateral force of wheel axle of each piece of data after calculating.
This paper will use the 3σ principle[4] of normal distribution, namely, using the mean value of the sample data plus 3 times of the mean square deviation, then we will get the inferred maximum of sample data and take this number as the maximum of experiment data may achieve.
Then, we take each radius or radius interval data collected in accordance with the velocity level classification as a small sample, and through mathematical statistics analysis of original data, we are able to determine that each radius interval for each velocity level data showed a normal distribution law.
The segments of experimental data sample including the whole test line.
Acquisition and processing of experimental data depends on MAC system, the sampling time of each segment is 6s, and it will output the maximum of derailment coefficient, rate of wheel load reduction and lateral force of wheel axle of each piece of data after calculating.
This paper will use the 3σ principle[4] of normal distribution, namely, using the mean value of the sample data plus 3 times of the mean square deviation, then we will get the inferred maximum of sample data and take this number as the maximum of experiment data may achieve.
Then, we take each radius or radius interval data collected in accordance with the velocity level classification as a small sample, and through mathematical statistics analysis of original data, we are able to determine that each radius interval for each velocity level data showed a normal distribution law.
Online since: March 2014
Authors: Wei Li, Wang Qiang Xiao
It only changed a parameter that needs to be studied every time by control variable method, and studies its influence on vibration reduction.
After collection of vibration signal is finished, the collected experimental data are conducted.
Fig.3 Installment position of sensors Fig.4 Data collection and analysis system The vibration exciter is used to generate vibration signal and sensors are used to measure vibration situation of experimental boxes in different position.
At the time of particle damping experiment, the related data of velocity and acceleration were collected by dynamic signal collection system.
The experimental data in axis X, Y, Z of different parameters (1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm) is compared to find out the influence of particle diameter on damping effect.
After collection of vibration signal is finished, the collected experimental data are conducted.
Fig.3 Installment position of sensors Fig.4 Data collection and analysis system The vibration exciter is used to generate vibration signal and sensors are used to measure vibration situation of experimental boxes in different position.
At the time of particle damping experiment, the related data of velocity and acceleration were collected by dynamic signal collection system.
The experimental data in axis X, Y, Z of different parameters (1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm) is compared to find out the influence of particle diameter on damping effect.
Online since: August 2012
Authors: José Deodoro Trani Capochi, Osvaldo Mitsuyuki Cintho, H.I. Tsai, M. Bär, M. de Castro, E.F. Monlevade
Variation of Tungsten Oxide Reduction Mode Using Different High Energy Milling Conditions
O.M.
Keywords: High energy ball milling, oxide reduction, milling parameters, tungsten oxide Abstract.
Reductions of metal oxides in the presence of a strong reductant have been considerably investigated.
The variation of jar temperature was measured by a K type thermocouple connected on jar botton and the MINIPA-ET 2615 datalogger system was used to data acquisition during each milling process.
A self-propagating reduction was observed after a quite short milling time, which differed from gradual reductions reported in literature.
Keywords: High energy ball milling, oxide reduction, milling parameters, tungsten oxide Abstract.
Reductions of metal oxides in the presence of a strong reductant have been considerably investigated.
The variation of jar temperature was measured by a K type thermocouple connected on jar botton and the MINIPA-ET 2615 datalogger system was used to data acquisition during each milling process.
A self-propagating reduction was observed after a quite short milling time, which differed from gradual reductions reported in literature.
Online since: August 2014
Authors: Cheng Xian Fan, Hui Zhong, Ke Jun Li
Backward P-law Reasoning and its Application in the Information Image Camouflage-reduction
Chengxian Fan1,a, Kejun Li 1,b, Hui Zhong1,c
1School of Electrical Engineering, Shandong University, Jinan, 250061, China
aemail: fcxmar@sdu.edu.cn, bemail: lkjun@sdu.edu.cn, cemail: zhonghui@sdu.edu.cn
Keywords: backward P-law reasoning, information image, camouflage- reduction
Abstract.
Using the theory results, the application of backward P-law reasoning in the information image camouflage-reduction is given.
Using backward P-law reasoning, the application in information image camouflage- reduction[6-7] is given.
Fig.1 Backward internal P-law reasoning Fig.2 Backward outer P-law reasoning Backward P-law reasoning and its application in information image camouflage-reduction Assumption The example comes from a certain intelligent recognition system.
Using data separation-composition principle[13], P-information law is generated by , which are .
Using the theory results, the application of backward P-law reasoning in the information image camouflage-reduction is given.
Using backward P-law reasoning, the application in information image camouflage- reduction[6-7] is given.
Fig.1 Backward internal P-law reasoning Fig.2 Backward outer P-law reasoning Backward P-law reasoning and its application in information image camouflage-reduction Assumption The example comes from a certain intelligent recognition system.
Using data separation-composition principle[13], P-information law is generated by , which are .
Online since: May 2012
Authors: Zhi Yuan Wang, Wei Gang Fu, Yu Xiang Sun, Yong Tao Su
Through calculation and test, we can determine the maximum air pressure and air volume needed by the device with reference to the testing data of similar systems.
Concerning the measurement error of the measured data and the change of the device’s performance, the actual air pressure and air volume can be acquired as follows: Q = (1.05~1.10)Q0; P = (1.00~1.15 )P0.
As far as energy conservation is concerned, it is appreciated to calculate the air pressure and air volume in need as accurately as possible, and limit the error between the calculated data and the actual running value within 10%.
The data in Table 1 is the analysis and comparison of the fixed speed motor, the multispeed motor and the variable-frequency motor.
(2)Adopting the Noise Reduction Technology of the Forward Sweep Blade.
Concerning the measurement error of the measured data and the change of the device’s performance, the actual air pressure and air volume can be acquired as follows: Q = (1.05~1.10)Q0; P = (1.00~1.15 )P0.
As far as energy conservation is concerned, it is appreciated to calculate the air pressure and air volume in need as accurately as possible, and limit the error between the calculated data and the actual running value within 10%.
The data in Table 1 is the analysis and comparison of the fixed speed motor, the multispeed motor and the variable-frequency motor.
(2)Adopting the Noise Reduction Technology of the Forward Sweep Blade.
Online since: April 2015
Authors: Kyoung Woo Kim, Jun Oh Yeon, Kwan Seop Yang, Myung Jun Kim
Furthermore, by installing additional mat-type items to the upper layer floor coverings and conducting a comparative analysis on the performance of impact sound reduction, this study attempts to provide basic data for future research on finishing materials.
In the case of the bang machine, the data indicated an insignificant reduction throughout the entire frequency band, regardless of the thickness of the floor coverings.
The data from the impact ball also indicated an insignificant reduction throughout the entire frequency band.
Impact Sound Reduction of Mat Fig. 5 shows the measurement results regarding the impact sound reduction of 10, 15, 30, and 40-mm-thick shock reduction mats installed on top of the Ondol structure.
In the case of impact sound reduction regarding the impact ball, there was hardly any reduction in the 10 mm and 15 mm mats.
In the case of the bang machine, the data indicated an insignificant reduction throughout the entire frequency band, regardless of the thickness of the floor coverings.
The data from the impact ball also indicated an insignificant reduction throughout the entire frequency band.
Impact Sound Reduction of Mat Fig. 5 shows the measurement results regarding the impact sound reduction of 10, 15, 30, and 40-mm-thick shock reduction mats installed on top of the Ondol structure.
In the case of impact sound reduction regarding the impact ball, there was hardly any reduction in the 10 mm and 15 mm mats.