Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: March 2014
Authors: Yao Guang Wei, Xue Lun Hu, Ying Yi Chen, Li Cai Zhang
A complete data transmission of DHT11 is 40bit.
Data format is as follows: 8bit humidity integer data +8bit humidity decimal data +8bit temperature integer data +8bit temperature decimal data +8bit checksum.
Software design of temperature and humidity data acquisition system The temperature and humidity data acquisition system consists of data acquisition, data display and data transmission by wireless.
The instruction format of coordinator Instructions Notes A7+data+address data: The transmitted data from data acquisition node; address: Short address of the data acquisition node; As shown in figure 12, sending to the data 05 06 07 08 from terminal node which short address is 14 3E to the coordinator, the instruction of sending terminal is: A7 05 06 07 08, the instruction received by coordinator is :A7 05 06 07 08 14 3E.
The reduction algorithm of ZigBee network isolated point based on node metastasis.
Data format is as follows: 8bit humidity integer data +8bit humidity decimal data +8bit temperature integer data +8bit temperature decimal data +8bit checksum.
Software design of temperature and humidity data acquisition system The temperature and humidity data acquisition system consists of data acquisition, data display and data transmission by wireless.
The instruction format of coordinator Instructions Notes A7+data+address data: The transmitted data from data acquisition node; address: Short address of the data acquisition node; As shown in figure 12, sending to the data 05 06 07 08 from terminal node which short address is 14 3E to the coordinator, the instruction of sending terminal is: A7 05 06 07 08, the instruction received by coordinator is :A7 05 06 07 08 14 3E.
The reduction algorithm of ZigBee network isolated point based on node metastasis.
Online since: September 2013
Authors: Cheng Xu Wu, Hua Jun Zeng
Inorganic polymers using slag as cementitious materials have the advantage of a short setting time, high early strength, but the sensitivity of the reaction rate to temperature and the likelihood to subsequently crack, which leads to reduction of strength, limit its application.
The rates of heat transmission were measured and recorded by a computer data acquisition system.
Table 3 was the test data of neat paste’s strength of inorganic polymer (which was the mixture of fly ash and slag in different ratio) under the standard condition (referring to cement standard).
Analyzing the neat paste test data comprehensively, the effect on the strength of inorganic polymer cementitious material was the minimum when fly ash dosage reaches around 25%, and finally the test of fly ash dosage was confirmed at 20%, 30% and 40%.
The rates of heat transmission were measured and recorded by a computer data acquisition system.
Table 3 was the test data of neat paste’s strength of inorganic polymer (which was the mixture of fly ash and slag in different ratio) under the standard condition (referring to cement standard).
Analyzing the neat paste test data comprehensively, the effect on the strength of inorganic polymer cementitious material was the minimum when fly ash dosage reaches around 25%, and finally the test of fly ash dosage was confirmed at 20%, 30% and 40%.
Online since: September 2013
Authors: Guo Ping Yu, An Min Sun, Yu Xin Wang, Ji Bian, Rao Fu, Mu Jun Liu, Man Xu Xu
Data revealed trypsin was possible the most effective extractant under their optimal conditions.
One-way analysis of variance (ANOVA) and Duncan’s multiple range tests among data were carried out using SPSS 19.0 at a significance level of 5% (p<0.05).Data were expressed as mean ± SD for all replicates.
As these data show, the main component is protein.
Obvious downward trend was found in papain from 0 to 50 min, however, data changed slightly from 50 to 90min.
These data also shows that the result of ARSA, rather than DPPH, is more anastomotic with the result of protein, fat and γ-oryzanol content.
One-way analysis of variance (ANOVA) and Duncan’s multiple range tests among data were carried out using SPSS 19.0 at a significance level of 5% (p<0.05).Data were expressed as mean ± SD for all replicates.
As these data show, the main component is protein.
Obvious downward trend was found in papain from 0 to 50 min, however, data changed slightly from 50 to 90min.
These data also shows that the result of ARSA, rather than DPPH, is more anastomotic with the result of protein, fat and γ-oryzanol content.
Online since: January 2012
Authors: Ying Jie Cai, Dong Sheng Xia, Qing Fu Zeng, Xiao Jun Yang
The degradation rate of X-3B was obtained from weighted linear least squares analysis of the experimental data, and accorded with the pseudo-first order kinetics equation.
Production of ∙OH radicals from H2O2 utilizing individual catalytic method is limited since ∙OH radicals are scavenged by the excess amount of H2O2 in solution, resulting in reduction of the degradation efficiency.
Production of ∙OH radicals from H2O2 utilizing individual catalytic method is limited since ∙OH radicals are scavenged by the excess amount of H2O2 in solution, resulting in reduction of the degradation efficiency.
Online since: February 2019
Authors: Axel von der Weth, Frederik Arbeiter, Dmitry Klimenko, Volker Pasler, Georg Schlindwein
Permeation Data Analysis Considering a Nonzero Hydrogen Concentration on the Low Pressure Detector Side for a Purged Permeation Experiment
Axel von der Wetha*, Frederik Arbeiterb, Dmitry Klimenkoc, Volker Paslerd, Georg Schlindweine
Karlsruhe Institute of Technology, P.O.Box 3640, D-76021 Karlsruhe, Germany
a*axel.vonderweth@kit.edu, bfrederik.arbeiter@kit.edu, cdmitry.klimenko@kit.edu,
dvolker.pasler@kit.edu, egeorg.schlindwein@kit.edu
Keywords: Hydrogen, permeation, diffusion constant, experiment analysis, branch and bound algorithm
Abstract.
In contrast to this, nearly all current available hydrogen permeation literature (Summary in [5]) is related to pure hydrogen isotopes data around 105 Pa partial pressure in the retentate chamber.
The residence time of the purge gas in the permeate chamber and pipe system volume up to the mass spectrometer, generating a distortion (time offset and reduction of slope) in the measurable signal.
Fig. 3: It shows a demonstration example for the impact of a TSF on measured data.
The time difference -shown by the black arrow- between measured data and original data can be corrected by TSF dependent on the relative concentration. 3.1 The FDM-module The description of FDM-module will start with boundary conditions given by phase equilibrium between gaseous Q-phase and Q-concentration inside the membrane in both chambers.
In contrast to this, nearly all current available hydrogen permeation literature (Summary in [5]) is related to pure hydrogen isotopes data around 105 Pa partial pressure in the retentate chamber.
The residence time of the purge gas in the permeate chamber and pipe system volume up to the mass spectrometer, generating a distortion (time offset and reduction of slope) in the measurable signal.
Fig. 3: It shows a demonstration example for the impact of a TSF on measured data.
The time difference -shown by the black arrow- between measured data and original data can be corrected by TSF dependent on the relative concentration. 3.1 The FDM-module The description of FDM-module will start with boundary conditions given by phase equilibrium between gaseous Q-phase and Q-concentration inside the membrane in both chambers.
Online since: February 2011
Authors: Ali M. Al Samhan
The GID program is widely used for generating data files and results visualization in a number of linear and non-linear problems in thermal and structure engineering mechanics, using finite-element method.
In the beginning, a data file of the FE model is generated using the GID program after importing the solid model from CATIA V5 software, next completed using a text editor.
Followed, Tochnog FE module is called and executed using the generated data file.
· The restrained points as well as the applied load were kept constant to enable fair comparison between the data to be made.
Also, the Fig. shows that the introduction of overlap support result in 500% reduction in the stress concentration for joint with overlap support compared to same joint without support.
In the beginning, a data file of the FE model is generated using the GID program after importing the solid model from CATIA V5 software, next completed using a text editor.
Followed, Tochnog FE module is called and executed using the generated data file.
· The restrained points as well as the applied load were kept constant to enable fair comparison between the data to be made.
Also, the Fig. shows that the introduction of overlap support result in 500% reduction in the stress concentration for joint with overlap support compared to same joint without support.
Online since: June 2012
Authors: Mei Lin, Yu Mei Zhang, Li Gong Cui
During smart car driving it will read each sensor constantly to collect data,processing get data, empty PWM pulses to control motor speed by different conditions of get data, at the same time the related data to send LCD display.
This system choose the DC motor to drive wheels moving, DC motor will always turn after power supply, and pervert the power of the motor or the ground the motor rotation direction changing,The chip L9110 is for control and drive motor design application-specific integrated circuit device, will be integrated circuit in single chip division of IC, make peripheral devices cost reduction, the reliability.
This system choose the DC motor to drive wheels moving, DC motor will always turn after power supply, and pervert the power of the motor or the ground the motor rotation direction changing,The chip L9110 is for control and drive motor design application-specific integrated circuit device, will be integrated circuit in single chip division of IC, make peripheral devices cost reduction, the reliability.
Online since: September 2014
Authors: David Lee Butler
It was concluded that this method was an approximate way of expressing the state and number of cutting edges present on a grinding wheel with the advantage of generating data in an aerial form (mm-2).
Three-dimensional measurement possesses several advantages over the more commonly accepted profilometry methods, these include the reduction in influence of erroneous features, statistically more meaningful, and the facility to analyse the structural function of the surface.
Spatial parameters such as the density of summits are highly influenced by the measurement strategy which includes the spacing of the data points.
At 18 minutes there is an anomaly in the data as it suddenly spikes and this can be attributed to possible grain fracturing and the exposure of new grains and is supported by a similar trend in the grain sharpness Ssc.
Wolf , Data structures for the topological characterisation of topographic surfaces, 6ème Coll.
Three-dimensional measurement possesses several advantages over the more commonly accepted profilometry methods, these include the reduction in influence of erroneous features, statistically more meaningful, and the facility to analyse the structural function of the surface.
Spatial parameters such as the density of summits are highly influenced by the measurement strategy which includes the spacing of the data points.
At 18 minutes there is an anomaly in the data as it suddenly spikes and this can be attributed to possible grain fracturing and the exposure of new grains and is supported by a similar trend in the grain sharpness Ssc.
Wolf , Data structures for the topological characterisation of topographic surfaces, 6ème Coll.
Online since: January 2012
Authors: Zan Zhou, Jun Li Chang, Min Xie, Xiao Mei Liao
The data acquisition system was ANY-MAZE (Stoelting Coporation, USA).
Statistical Analysis Data were expressed as mean ± S.D.
Data were analyzed by t-test and the P<0.05 level was accepted as significant.
The data analysis was carried out with the statistical software Sigma Plot 9.0 Professional.
Our results showed that the latencies to find the hidden platform in control group gradually became shorten in the place navigation testing, while that in test group with removal of vision clues had no significant reduction and maintained above 40 s.
Statistical Analysis Data were expressed as mean ± S.D.
Data were analyzed by t-test and the P<0.05 level was accepted as significant.
The data analysis was carried out with the statistical software Sigma Plot 9.0 Professional.
Our results showed that the latencies to find the hidden platform in control group gradually became shorten in the place navigation testing, while that in test group with removal of vision clues had no significant reduction and maintained above 40 s.
Online since: June 2014
Authors: Juan Pang, Jin Ling Sun, Jun Bian
Based on actual observations as envelope, DEA method is using mathematical programming model to analyze the data of decision-making units, and by comparing the relative efficiency among the units to determine whether it is valid and thus evaluate it.
The smaller they are, the size of the corresponding indicators’s reduction or increase in magnitude the smaller the size of the impact on the target value, on the contrary.
References [1] Quanling Wei.Data Envelopment Analysis (DEA) [M](In Chinese).Beijing: Science Press, 2004
[2] Fei Xie.The Applications of Data Envelopment Analysis and Principal Component Analysis of the Correlation Research [D](In Chinese).Tianjin: Tianjin University,2003
[4] Wenheng Ding,Yingjun Feng,Yuhong Kang.At The Same Time For Input and Output Oriented A Model of Data Envelopment Analysis (DEA)[J](In Chinese),Quantitative & technical economics,2001(11)
The smaller they are, the size of the corresponding indicators’s reduction or increase in magnitude the smaller the size of the impact on the target value, on the contrary.
References [1] Quanling Wei.Data Envelopment Analysis (DEA) [M](In Chinese).Beijing: Science Press, 2004
[2] Fei Xie.The Applications of Data Envelopment Analysis and Principal Component Analysis of the Correlation Research [D](In Chinese).Tianjin: Tianjin University,2003
[4] Wenheng Ding,Yingjun Feng,Yuhong Kang.At The Same Time For Input and Output Oriented A Model of Data Envelopment Analysis (DEA)[J](In Chinese),Quantitative & technical economics,2001(11)