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Online since: June 2014
Authors: Yan Yan Wu, Shan Shan Guo
It tourism data collection, storage , processing, transmission and retrieval, and provide useful information to tourists and tourism workers to help them make decisions or management.
Users can navigate from any node Interact WebGIS site of spatial data , making thematic maps , a variety of spatial information retrieval and path analysis .
In this way, the user does not have to be installed on the local computer GIS software, you can access remote GIS data and applications on the Intemet, perform GIS analysis and provide interactive maps and data.
Any G1S data and functionality is an object, these objects deployed in different servers on the Internet , when they need them to be assembled and integrated .
In emphasizing the network interactive web2.0 era to be asynchronous transfer mode data collection, eliminating the traditional synchronous transmission technology using WebGIS accept the request and returns the data needed to reload the page troubled , but also eliminates the user the uncertainty of waiting for a response .
Users can navigate from any node Interact WebGIS site of spatial data , making thematic maps , a variety of spatial information retrieval and path analysis .
In this way, the user does not have to be installed on the local computer GIS software, you can access remote GIS data and applications on the Intemet, perform GIS analysis and provide interactive maps and data.
Any G1S data and functionality is an object, these objects deployed in different servers on the Internet , when they need them to be assembled and integrated .
In emphasizing the network interactive web2.0 era to be asynchronous transfer mode data collection, eliminating the traditional synchronous transmission technology using WebGIS accept the request and returns the data needed to reload the page troubled , but also eliminates the user the uncertainty of waiting for a response .
Online since: April 2012
Authors: Yao Xiang Li, Pai Li
It has obvious superiority in nonlinear data processing [7-9].
Principal component analysis (PCA) is a kind of mathematical procedure with a wide range of applications in data processing and dimensionality reduction [10-11].
The NIR raw data contains disturbance information, which will affect the accuracy and stability of a model.
It showed that PCA is a suited and efficient data mining method.
The extracted data set from near infrared reflectance spectra were used to establish 3-layer BP network.
Principal component analysis (PCA) is a kind of mathematical procedure with a wide range of applications in data processing and dimensionality reduction [10-11].
The NIR raw data contains disturbance information, which will affect the accuracy and stability of a model.
It showed that PCA is a suited and efficient data mining method.
The extracted data set from near infrared reflectance spectra were used to establish 3-layer BP network.
Online since: June 2010
Authors: C.A. Featherston, Richard L. Burguete, Mark J. Eaton, J. Mortimer, Rhiannon Johns
These include design guides such as Bruhn
[1] and data sheets including those published by ESDU [2].
Full field displacement data was obtained for the plate only using 3D digital image correlation.
This data was then post processed using Vic3D software.
Further work is required to obtain more qualitative data.
[2] Engineering Sciences Data Unit (ESDU): Flat Panels in Shear.
Full field displacement data was obtained for the plate only using 3D digital image correlation.
This data was then post processed using Vic3D software.
Further work is required to obtain more qualitative data.
[2] Engineering Sciences Data Unit (ESDU): Flat Panels in Shear.
Online since: July 2011
Authors: Jia Feng Sun, Ning Yang, Juan Li, Jing Qiao, Jian Gang Qiao
Foreign scholars JBonneson.etc established the interchange ramp and variable speed lane accident forecast model based on large number of accident data [5-7].
Data acquisition In August 2010, from 8a.m. to 18p.m.on fine normal weekday, field data collection was conducted on 68 expressway interchanges in Liaoning and Wuhan province.
The data is collected such as operating speed, traffic volume, driver's heart rate and traffic congestion of different points on ramp circular curve using GPS, MC traffic data acquisition instrument, driver heart physiological tester and so on, and analyzed, which conducted parameters qualitative and quantitative analysis of ramp circular curve radius.
Process the data and achieve analysis about driver’s fluctuating rate of heart rates and tensity as figure 5.
The selection of ramp circular curve radius Classify the data obtained, and analyze the relationship between ramp circular curve feature points and operating speed, heart rate are shown in figure 6 and 7.
Data acquisition In August 2010, from 8a.m. to 18p.m.on fine normal weekday, field data collection was conducted on 68 expressway interchanges in Liaoning and Wuhan province.
The data is collected such as operating speed, traffic volume, driver's heart rate and traffic congestion of different points on ramp circular curve using GPS, MC traffic data acquisition instrument, driver heart physiological tester and so on, and analyzed, which conducted parameters qualitative and quantitative analysis of ramp circular curve radius.
Process the data and achieve analysis about driver’s fluctuating rate of heart rates and tensity as figure 5.
The selection of ramp circular curve radius Classify the data obtained, and analyze the relationship between ramp circular curve feature points and operating speed, heart rate are shown in figure 6 and 7.
Online since: October 2014
Authors: Feng Lu, Ning Li, Xiao Fei Zhang
The present fast measurement software possess the function of being input two kinds of data at the same time to compare with: a data from the CAD data, as the benchmark of comparison; another data from point cloud data, which can be obtained by different methods[1].
The equipment includes two parts: hand-held laser scanner and data processing software.
Fig. 2 Process of physical model digitization Comparison between Point Cloud Data and CAD Model.
But don't use reverse engineering software for data reduction and repairing operation such as hole filling and so on, so as not to change the alignment precision of digital model.
Due to geometrical shape of the tested model and optical shielding effect, the point cloud data of the tested model cannot be expressed completely, such as the holes or internal angle of parts, can cause the lack of point cloud data [3].
The equipment includes two parts: hand-held laser scanner and data processing software.
Fig. 2 Process of physical model digitization Comparison between Point Cloud Data and CAD Model.
But don't use reverse engineering software for data reduction and repairing operation such as hole filling and so on, so as not to change the alignment precision of digital model.
Due to geometrical shape of the tested model and optical shielding effect, the point cloud data of the tested model cannot be expressed completely, such as the holes or internal angle of parts, can cause the lack of point cloud data [3].
Online since: May 2025
Authors: Rime El Harrouni, Najoua Eraza, El Hassan Sebbar, Majid Mansour, Amine Hajji, Najma Laaroussi
The data revealed that the building with conventional insulation had a significantly higher heat transfer coefficient compared to the one with slag stone concrete insulation.
Additionally, the data could be used to validate simulation models and develop new approaches to building design and retrofitting.
This study also highlighted the limitations and uncertainties of simulation results, stressing the importance of validation and calibration with experimental data.
Important thermocouple locations for data collection are T0 and T1, which stand for the upper and lower sample face temperatures, respectively, and T2, which stands for the temperature at the insulating foam's lower face (see Fig 2).
Fokaides, Thermal performance of brick and stone masonry: Cumulative heat flux dataset for main orientations and under diverse seasonal conditions, Data in Brief., 33(2020) 106599, DOI: 10.1016/j.dib.2020.106599
Additionally, the data could be used to validate simulation models and develop new approaches to building design and retrofitting.
This study also highlighted the limitations and uncertainties of simulation results, stressing the importance of validation and calibration with experimental data.
Important thermocouple locations for data collection are T0 and T1, which stand for the upper and lower sample face temperatures, respectively, and T2, which stands for the temperature at the insulating foam's lower face (see Fig 2).
Fokaides, Thermal performance of brick and stone masonry: Cumulative heat flux dataset for main orientations and under diverse seasonal conditions, Data in Brief., 33(2020) 106599, DOI: 10.1016/j.dib.2020.106599
Online since: November 2011
Authors: Thomas Can Hao Xu, Pasi Liljeberg, Hannu Tenhunen
SRAM uses bistable latching circuitry to store data bits, avoiding to be refreshed periodically.
Each cache bank, including data and tag, occupies 2.84mm2.
Cache size When a core in the NoC needs to read or write data in the memory, it firstly checks whether the data is in the cache (L1 and L2 etc.).
If the data is found in the cache, a cache hit has occurred.
These data are gathered from the trace file of the application from our simulator.
Each cache bank, including data and tag, occupies 2.84mm2.
Cache size When a core in the NoC needs to read or write data in the memory, it firstly checks whether the data is in the cache (L1 and L2 etc.).
If the data is found in the cache, a cache hit has occurred.
These data are gathered from the trace file of the application from our simulator.
Online since: April 2014
Authors: Can Hui Wu
Introduction
Face-gear drives are widely used in the aviation power transmission because of the advantages of face-gear in torque split and reduction of weight and known as "The hope of rotorcraft transmission in 21st Century" [1].
Face-gear Lubrication characteristic analysis Based on the above analysis steps, EHL analysis can be carried out according to the gear data and lubricant properties in table 1.
Gear data and lubricant properties Face-gear torque,T 600N×M Pinion tooth number, N1 18 Shaper tooth number, Ns 20 Face-gear tooth number, N2 100 Module, m 2.5mm Pressure angle,a0 25° Face-gear angular velocity w 200rad/s Young’s modulus E1,2 206800Mpa Poisson's ratio g1,2 0.29 Viscosity pressure coefficient a 2.2×10-8pa-1 Initial viscosity h0 0.026838 pa×s Initial density r0 870 kg/m3 Calculatting load distribution and entrainment velocity in single-cycle, the results are shown in Figure 5: Fig. 5 Load percentage and entrainment velocity curve in Single-tooth meshing cycle of face-gear It can be seen from Figure 5, At the meshing entry point A which is at the tooth root,there are two pairs of teeth in action, with the face-gear running, the carrying capacity of one pair of teeth gradually increases, and two pairs contacting change into one pair contacting at the meshing mid-point B, one pair of teeth carrying capacity reaches its maximum, and later two pairs of teeth contacting, then
On this basis, the lubrication equations of face-gear were established according to EHL theory, film thickness and pressure in the process of face-gear drives were calculated by using multi-grid algorithm, the design datum mark of face-gear lubrication was got, which can provide a reference for designer.
Face-gear Lubrication characteristic analysis Based on the above analysis steps, EHL analysis can be carried out according to the gear data and lubricant properties in table 1.
Gear data and lubricant properties Face-gear torque,T 600N×M Pinion tooth number, N1 18 Shaper tooth number, Ns 20 Face-gear tooth number, N2 100 Module, m 2.5mm Pressure angle,a0 25° Face-gear angular velocity w 200rad/s Young’s modulus E1,2 206800Mpa Poisson's ratio g1,2 0.29 Viscosity pressure coefficient a 2.2×10-8pa-1 Initial viscosity h0 0.026838 pa×s Initial density r0 870 kg/m3 Calculatting load distribution and entrainment velocity in single-cycle, the results are shown in Figure 5: Fig. 5 Load percentage and entrainment velocity curve in Single-tooth meshing cycle of face-gear It can be seen from Figure 5, At the meshing entry point A which is at the tooth root,there are two pairs of teeth in action, with the face-gear running, the carrying capacity of one pair of teeth gradually increases, and two pairs contacting change into one pair contacting at the meshing mid-point B, one pair of teeth carrying capacity reaches its maximum, and later two pairs of teeth contacting, then
On this basis, the lubrication equations of face-gear were established according to EHL theory, film thickness and pressure in the process of face-gear drives were calculated by using multi-grid algorithm, the design datum mark of face-gear lubrication was got, which can provide a reference for designer.
Online since: February 2018
Authors: Ani Devi Ariyanti, Iqmal Tahir, Akhmad Syoufian, Addy Rachmat, Hasanudin Hasanudin, Karna Wijaya
At the first step, bentonite was activated using H2SO4 to obtain H-bentonite, after that the activated clay was pillarized by Al2O3, Next, a salt solution of Cr(NO3)3·9H2O was impregnated in the pillared bentonite sample, followed by calcination and reduction to obtain the final catalyst, i.e.
The GC-MS analysis data showed that the hydrocracking products contained various kinds of organic compounds such as acetone, acetic acid, methyl benzene, octane, heptanal, 2-octene, 1-undecanoic acid, 9-octadecenal and 10-undecenoic acid. 1.
According to population growth and fuel usage data, fuel depletion will occur significantly in 2050 [1].
Conclusion Based on the data, we can conclude that pillarization of bentonite using Al2O3 increased the basal spacing by 1.96 nm with Δd001 1.01 nm while impregnation process gives the highest surface acidity by 8.26 mmol ammonia/g.
The GC-MS analysis data showed that the hydrocracking products contained various kinds of organic compounds such as acetone, acetic acid, methyl benzene, octane, heptanal, 2-octene, 1-undecanoic acid, 9-octadecenal and 10-undecenoic acid. 1.
According to population growth and fuel usage data, fuel depletion will occur significantly in 2050 [1].
Conclusion Based on the data, we can conclude that pillarization of bentonite using Al2O3 increased the basal spacing by 1.96 nm with Δd001 1.01 nm while impregnation process gives the highest surface acidity by 8.26 mmol ammonia/g.
Online since: February 2011
Authors: Yi Nong Yan
Data Process of Material Management System
Data Process.
Design of Data Bank of the System [3,5,6,7,8,9].
In an information system, data bank is often used to store and manage a tremendous amount of data.
Data bank system not only describes data itself but also depicts the correlations between them using structured models, and this system adopts relational data bank model.
Structural Design of Data Bank Concept.
Design of Data Bank of the System [3,5,6,7,8,9].
In an information system, data bank is often used to store and manage a tremendous amount of data.
Data bank system not only describes data itself but also depicts the correlations between them using structured models, and this system adopts relational data bank model.
Structural Design of Data Bank Concept.