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Online since: November 2012
Authors: Yi Zhu, Xu Seng Zhao, Wei Zhang, Xiao Bin Wei
In order to achieve the maximum resources sharing, and satisfy the basic data of uniqueness and maintenance convenience, and considering the data security, avoid business data through the other way is not safe to use, the system USES the centralized database, business data will be deployed in the database server unified management, the client software through the security of database access a TCP connection of business data, the whole system deployed in ground support local area network, only access the LAN and install the software can access to the system.
Model Layer Model data and business rules said business.
This module and can be divided into business data and business operation two parts, the integration of business data and business operation, its packaging together as a business entity.
Relative to the different business data object, can build a business entity, realize its matching business data access and related business operation.
Among them, the basic data access is dependent on the DataAccess module (Fig. 3) business of data access operations to realize.
Model Layer Model data and business rules said business.
This module and can be divided into business data and business operation two parts, the integration of business data and business operation, its packaging together as a business entity.
Relative to the different business data object, can build a business entity, realize its matching business data access and related business operation.
Among them, the basic data access is dependent on the DataAccess module (Fig. 3) business of data access operations to realize.
Online since: January 2022
Authors: Akshay Kumar Saha, Babatunde Olusegun Adewolu
This system which is well described in Appendix 2 of IEEE 30 bus data, has its configuration contained in [32].
Table 3 depicts the percentage reduction in the allowable transfer power during line outages.
A significant loss reduction on line 12-15 was obtained during T3, from 0.0095 to 0.0082 p.u. among other reductions as shown in Fig. 19(c).
In Fig. 19(d), similar loss reduction from 0.0093 to 0.0083 p.u. was obtained on same line 12-15 for transaction T4, to mention few.
There were reductions in loss as compared uncompensated system as shown in Fig. 20(b), during T2.
Table 3 depicts the percentage reduction in the allowable transfer power during line outages.
A significant loss reduction on line 12-15 was obtained during T3, from 0.0095 to 0.0082 p.u. among other reductions as shown in Fig. 19(c).
In Fig. 19(d), similar loss reduction from 0.0093 to 0.0083 p.u. was obtained on same line 12-15 for transaction T4, to mention few.
There were reductions in loss as compared uncompensated system as shown in Fig. 20(b), during T2.
Online since: June 2021
Authors: Alexandra Reto, Renzo Sanabria, Jose Rodríguez, Alexandra Hinostroza
The precast concrete elements in the construction of buildings are increasingly used due to their better quality control, constructive speed, reduction of the number of workers and less waste of resources compared to conventional construction; for wall applications, to these advantages, the design to ensure thermal comfort requires the improvement of the low thermal insulation of conventional concrete panels.
In this regard, the author [24] indicates that substitutions between 10-30% of EPSB guarantee a significant reduction in density. [25, 10] indicate that this behavior is due to the fact that the greater quantity of beads in the concrete increases the voids in its interior, producing an increase in porosity.
This trend coincides with the data found by [ 23, 25].
This trend matches the data found by [32].
The air-dry density when decreasing benefits in the self-weight of the load elements for a construction, favoring in the reduction of lateral forces by seismic events and thus reducing damage or loss.
In this regard, the author [24] indicates that substitutions between 10-30% of EPSB guarantee a significant reduction in density. [25, 10] indicate that this behavior is due to the fact that the greater quantity of beads in the concrete increases the voids in its interior, producing an increase in porosity.
This trend coincides with the data found by [ 23, 25].
This trend matches the data found by [32].
The air-dry density when decreasing benefits in the self-weight of the load elements for a construction, favoring in the reduction of lateral forces by seismic events and thus reducing damage or loss.
Online since: March 2011
Authors: Jia Fu Liu, Yu Hua Liang, Jing Li
Data Flow Design
Data flow design is the combination of the general system implementation and system operation of the overall design.
The data flow is shown in Figure 2.
Figure 2: design of the data flow 3.
Different scales of data can be automatically transferred to the spatial data in all kinds of conditions.
Spatial data can also be updated to meet the needs of the Northeast Popular Science according to permission for data entry and editing.
The data flow is shown in Figure 2.
Figure 2: design of the data flow 3.
Different scales of data can be automatically transferred to the spatial data in all kinds of conditions.
Spatial data can also be updated to meet the needs of the Northeast Popular Science according to permission for data entry and editing.
Online since: July 2014
Authors: Jun Ma, Wei Wei Li, Peng Ting Liu
The primary task of weak signal noise monitoring and feature extraction is signal noise reduction, which requires the use of electronics, information theory, computer and physics methods.
In addition, due to the rapid and real-time needs in fault diagnosis, the data length often limited.
However, for short data point, low signal to noise ratio, when the noise frequency and signal frequency is close or coincident, the weak signal detection method has some defects, such as short data lead to low resolution when the FFT is used, the noise can not be average out.
Data transmission protocol of fault information is used by the information description method of "factory - monitoring unit - point - monitoring quantity".
The data transmission protocol mainly includes the following 4 parts: (1) The initial data segment: including initial identification monitoring data, monitoring, monitoring time and date. (2) Monitoring global data section: provide status acquisition parameter setting information, such as the parameter analysis of frequency, gain, sampling points, the total channel number, channel settings. (3) Monitoring data: the machine monitoring signal, waveform information. (4) End of data identification segment: including the identification of the data packet end.
In addition, due to the rapid and real-time needs in fault diagnosis, the data length often limited.
However, for short data point, low signal to noise ratio, when the noise frequency and signal frequency is close or coincident, the weak signal detection method has some defects, such as short data lead to low resolution when the FFT is used, the noise can not be average out.
Data transmission protocol of fault information is used by the information description method of "factory - monitoring unit - point - monitoring quantity".
The data transmission protocol mainly includes the following 4 parts: (1) The initial data segment: including initial identification monitoring data, monitoring, monitoring time and date. (2) Monitoring global data section: provide status acquisition parameter setting information, such as the parameter analysis of frequency, gain, sampling points, the total channel number, channel settings. (3) Monitoring data: the machine monitoring signal, waveform information. (4) End of data identification segment: including the identification of the data packet end.
Online since: May 2005
Authors: Matthias Kleiner, N. Ridane, D. Jaksic, B. Heller
A well established approach to calculate process data for forming
processes is the use of a process simulation.
A promising approach for the generation of the required NC-data is the use of a process simulation.
The use of the segmental data in pre-calculated manner allows a considerable reduction of the overall computation time.
Finally, as results the process simulation provides data such as: • the variations of the loaded and unloaded bend angle, • the springback angle and the punch force with the punch displacement as well as with the loaded and unloaded bend angle (important for generation of NC-data), • the unloaded and loaded bend lines (important for collision checks, determination of unfolded length).
From the data gained in these experiments, important quantities such as the stiffness of the Cframe and the stiffness of the press brake ram could be extracted.
A promising approach for the generation of the required NC-data is the use of a process simulation.
The use of the segmental data in pre-calculated manner allows a considerable reduction of the overall computation time.
Finally, as results the process simulation provides data such as: • the variations of the loaded and unloaded bend angle, • the springback angle and the punch force with the punch displacement as well as with the loaded and unloaded bend angle (important for generation of NC-data), • the unloaded and loaded bend lines (important for collision checks, determination of unfolded length).
From the data gained in these experiments, important quantities such as the stiffness of the Cframe and the stiffness of the press brake ram could be extracted.
Online since: February 2014
Authors: Wei Wang, Bing Tu, Teng Xi Zhan
USB Data Collection
Pressure Sensor
Stand Pipe
Mud pulse signal
Digital Filtering
Decoding Algorithm
Display on Monitor
Mud
Pulser
DSP
Sensors
Mud Pool
Mud Pump
Ground Collection box
AD Transform
Signal Filtering
Explosion-proof box
Fig 1.
Based on the collective empirical mode, Literature [8] adopted the noise reduction algorithm .This paper analyzed the transmission format of underground Manchester encoded datum and use the morphological filtering algorithms to extract the mud pulse signal.
Data processing techniques for a wireless data transmission application via mud.EURASIP Journal on Advances in Signal Processing.2011 1.45 [9]Wei Lifang,Qi Min,Deng Lin.etc.
Curve Fitting Method for Transfer Functions Based on Gradient Characteristics for Medical Volume Rendering[J].Journal of Data Acquisition&Procssing, 2008,23(6):756-760 [10]Chen Tao,Liu Yanqiong,Han Qiangqiang.
Journal of Data Acquisition&Procssing,2012,27(1):1-5
Based on the collective empirical mode, Literature [8] adopted the noise reduction algorithm .This paper analyzed the transmission format of underground Manchester encoded datum and use the morphological filtering algorithms to extract the mud pulse signal.
Data processing techniques for a wireless data transmission application via mud.EURASIP Journal on Advances in Signal Processing.2011 1.45 [9]Wei Lifang,Qi Min,Deng Lin.etc.
Curve Fitting Method for Transfer Functions Based on Gradient Characteristics for Medical Volume Rendering[J].Journal of Data Acquisition&Procssing, 2008,23(6):756-760 [10]Chen Tao,Liu Yanqiong,Han Qiangqiang.
Journal of Data Acquisition&Procssing,2012,27(1):1-5
Online since: April 2022
Authors: Abdelouahab Lefkir, Mohamed Annad
These formulas were rarely tested using field data, where, until recently, there was very little data to validate them.
The data used is in situ data from an extensive database.
For this study, 1249 field data were selected. 2.
Therefore, these missed data have been discarded.
Data Ser., 2014, vol. 845
The data used is in situ data from an extensive database.
For this study, 1249 field data were selected. 2.
Therefore, these missed data have been discarded.
Data Ser., 2014, vol. 845
Online since: December 2011
Authors: Long Bai, Tao Wang, Jian Jun Chen, Xi Bin Wang
In general, the results obtained from the mathematical model agree well with the experimental data.
This method is usually appreciated for its distribution-free and orthogonal array design, and it provides a considerable reduction of time and resource needed to determine important factors affecting operations with simultaneous improvement of quality and cost of manufacturing [11].
In the meantime, the data of cutting force component Fc was acquired with the aid of a piezoelectric cutting force dynamometer provided by Kistler force measuring instrument 9257B and Kistler charge amplifier 5017A.
After 18 cutting experiments being conducted, the results of cutting force were collected as original data to find the parameters appearing in the postulated first order model.
Compared to experimental results, data predicted by both model have a good accuracy.
This method is usually appreciated for its distribution-free and orthogonal array design, and it provides a considerable reduction of time and resource needed to determine important factors affecting operations with simultaneous improvement of quality and cost of manufacturing [11].
In the meantime, the data of cutting force component Fc was acquired with the aid of a piezoelectric cutting force dynamometer provided by Kistler force measuring instrument 9257B and Kistler charge amplifier 5017A.
After 18 cutting experiments being conducted, the results of cutting force were collected as original data to find the parameters appearing in the postulated first order model.
Compared to experimental results, data predicted by both model have a good accuracy.