Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: October 2010
Authors: Marcos A.S. Barrozo, Marcos V. Rodrigues, José Renato Coury
Although a number of investigators have reported on the effect of electric charge on the collection efficiency of fibrous filters, few quantitative data have appeared relating specific electrical forces.
A typical set of data of the filtering media penetration as a function of particle diameter in the first stage of the filtration is shown in Figs. 3 (a) to 5(a).
These data refer to the three levels of charge evaluated and filtration velocities of 0.05, 0.08 and 0.12 m/s respectively.
It was noticed a considerable reduction in penetration and small increase in a pressure drop when the particles were charged.
A typical set of data of the filtering media penetration as a function of particle diameter in the first stage of the filtration is shown in Figs. 3 (a) to 5(a).
These data refer to the three levels of charge evaluated and filtration velocities of 0.05, 0.08 and 0.12 m/s respectively.
It was noticed a considerable reduction in penetration and small increase in a pressure drop when the particles were charged.
Online since: October 2014
Authors: Ahmad Mujahid Ahmad Zaidi, Nazrul Idzham Kasim, Wan Ahmad Najmuddin Wan Saidin, Nurul Aliaa Mohd Adnan, Azalan Mohamed Ibrahim
SMED (single minute exchange of dies) - a changeover reduction technique.
Fig. 1: Production line at sub-assembly 1 and 5 Based on the cluster of volume production, the data is collected for machine capacity at assembly in three months commenced from January until March.
Fig. 2: Machine capacity processes From the layout machine and data gathered, machine number WSS 502, 103, 107, and 112 is identified to be operated with two processes.
The data is tabulated in Table 1 with details parts process involved.
Fig. 1: Production line at sub-assembly 1 and 5 Based on the cluster of volume production, the data is collected for machine capacity at assembly in three months commenced from January until March.
Fig. 2: Machine capacity processes From the layout machine and data gathered, machine number WSS 502, 103, 107, and 112 is identified to be operated with two processes.
The data is tabulated in Table 1 with details parts process involved.
Online since: October 2014
Authors: Al Emran Ismail, Waluyo Adi Siswanto, Ismail Nawi
The following are the parameters which have been analyzed base on data taken during the process.
The following data presented by the table configures the cycle time of both process.
The data is taken by stopwatch after considering the normal operator rating factor (RF) and 20% tolerance time.
Auto pour reduces the rejection rate from 11.56 % to 6.59 % or equivalent to 43% reduction in damage products.
The following data presented by the table configures the cycle time of both process.
The data is taken by stopwatch after considering the normal operator rating factor (RF) and 20% tolerance time.
Auto pour reduces the rejection rate from 11.56 % to 6.59 % or equivalent to 43% reduction in damage products.
Online since: May 2019
Authors: Karel Raz, Frantisek Sedlacek
The resultant data can be useful for various fields, such as injection molding, processing of composite materials and evaluating the properties of polymer matrices.
To compensate for this increase, the melt temperatures used were lower than the minimal temperature given in the material data sheet (200°C). [8, 9] Fig. 2.
The reduction in strength is caused by a rise in temperature during injection molding.
The strength of material was 30% less than the value declared in the material data sheet.
To compensate for this increase, the melt temperatures used were lower than the minimal temperature given in the material data sheet (200°C). [8, 9] Fig. 2.
The reduction in strength is caused by a rise in temperature during injection molding.
The strength of material was 30% less than the value declared in the material data sheet.
Online since: January 2005
Authors: Young Won Chang, Won Kyu Bang, Yong Nam Kwon, J.E. Park, Chong Soo Lee
The reduction ratio of cold
rolling was mainly varied to control the resulting grain sizes.
The internal variables and material constants prescribed in the constitutive relations (Eqs. 3 and 6) were determined by fitting the flow data as shown in Fig. 4(b).
Since the GBS is not expected at the upper and lower extreme flow stress levels, the GMD-only constitutive relation (Eq. 3) can be applied to the data of those regions, indicated as a solid line in Fig. 4(b).
The GBS flow was resolved from the total flow by taking the difference between the experimental data and the solid line in the mid region of flow curve, shown as dashed line in Fig. 4(b).
The internal variables and material constants prescribed in the constitutive relations (Eqs. 3 and 6) were determined by fitting the flow data as shown in Fig. 4(b).
Since the GBS is not expected at the upper and lower extreme flow stress levels, the GMD-only constitutive relation (Eq. 3) can be applied to the data of those regions, indicated as a solid line in Fig. 4(b).
The GBS flow was resolved from the total flow by taking the difference between the experimental data and the solid line in the mid region of flow curve, shown as dashed line in Fig. 4(b).
Online since: September 2007
Authors: Lin Ye, Cheng Yan, H. Yu, J. Canning, B. Ashton
The possible
mechanisms include reduction of residual stress and flaw healing.
Due to the brittle nature of these fibers, the data was scattered in the measurements of failure load, and a statistical analysis becomes necessary.
rm, µm 2 4 6 8 10 12 14 16 σf, GPa 200 400 600 800 1000 1200 Experimental data fitted with A=σf rm1/2 Fig. 5 Relationship between mirror-area radius and failure stress The data in Fig. 5 can be well fitted by an equation of A=σf rm 1/2 (A=1.65 MPa.m1/2), where rm is the radius of the mirror area.
Due to the brittle nature of these fibers, the data was scattered in the measurements of failure load, and a statistical analysis becomes necessary.
rm, µm 2 4 6 8 10 12 14 16 σf, GPa 200 400 600 800 1000 1200 Experimental data fitted with A=σf rm1/2 Fig. 5 Relationship between mirror-area radius and failure stress The data in Fig. 5 can be well fitted by an equation of A=σf rm 1/2 (A=1.65 MPa.m1/2), where rm is the radius of the mirror area.
Online since: August 2008
Authors: Gobwute Rujijanagul, S.J. Milne, C. Puchmark
The analysis was carried out based on the basis of Joint
Committee on Powder Diffraction Standard (JCPDS) data [16].
The data suggests that a reaction occurs between the additive and matrix during processing, and that Al ion doping of PbZrO3 may be responsible for the changes in dielectric properties [17].
All PbZrO3/Al2O3 samples exhibited a 6 ºC reduction in Curie temperature relative to PbZrO3.
Joint Committee on Powder Diffraction Standards (JCPDS) PDF-4, Internation Centre for Diffraction Data (ICDD), (2000)
The data suggests that a reaction occurs between the additive and matrix during processing, and that Al ion doping of PbZrO3 may be responsible for the changes in dielectric properties [17].
All PbZrO3/Al2O3 samples exhibited a 6 ºC reduction in Curie temperature relative to PbZrO3.
Joint Committee on Powder Diffraction Standards (JCPDS) PDF-4, Internation Centre for Diffraction Data (ICDD), (2000)
Online since: August 2019
Authors: Xiu Shu Tian, Shuai Hou
If the detection and treatment are not processed in time, the damage accumulates and expands, and the bound of layered structure gradually fails, resulting in a significant reduction in the safety performance of the structure and a significant shortening of the service life [3].
Among the existing non-destructive testing technologys, ultrasonic wave has a large attenuation of sound energy in concrete and poor directionality, also a large number of comparisons of the detection data are need to determine the defect position.
The testing system contains a PC computer with a data acquisition software installed, an instrumented hammer and five acceleration transducers, as is shown in.
[2] Liu H., Deng Z., Han F., et al, Time-frequency analysis of air-coupled GPR data for identification of delamination between pavement layers, Construction & Building Materials. 154 (2017) 1207 - 1215
Among the existing non-destructive testing technologys, ultrasonic wave has a large attenuation of sound energy in concrete and poor directionality, also a large number of comparisons of the detection data are need to determine the defect position.
The testing system contains a PC computer with a data acquisition software installed, an instrumented hammer and five acceleration transducers, as is shown in.
[2] Liu H., Deng Z., Han F., et al, Time-frequency analysis of air-coupled GPR data for identification of delamination between pavement layers, Construction & Building Materials. 154 (2017) 1207 - 1215
Online since: December 2007
Authors: Tomasz Rzychoń, Andrzej Kiełbus, Bożena Bierska-Piech
Introduction
Magnesium alloys are widely employed in aerospace, automotive and electronics industries,
everywhere where weight reduction is essential.
The Rwp (weighed-pattern factor) and S (goodness of fit) parameters were used as numerical criteria of the quality of the fit of the calculated to experimental diffraction data [7].
According to [3], the β phase has a Mg14Nd2Y composition in WE54 alloy and small differences in relative intensities between catalogue data for Mg5Gd phase and experimental data were observed.
The Rwp (weighed-pattern factor) and S (goodness of fit) parameters were used as numerical criteria of the quality of the fit of the calculated to experimental diffraction data [7].
According to [3], the β phase has a Mg14Nd2Y composition in WE54 alloy and small differences in relative intensities between catalogue data for Mg5Gd phase and experimental data were observed.
Online since: January 2012
Authors: Hui Wang, Qing Xin Zhao, Dong Xia Zhang, Xiu Ji, Liang Zhao
Certain content the reduction of hemoglobin (Hb) and the oxygen intake from alveolar combined into oxygen and hemoglobin (HbO2).
(v) Low pass filter It will be necessary to diminish direct current component before A/D data collector and convertor, because the alternating element is the only parameter needed.
Figure 2 Functional block diagram of the system working 4 Software design The software consists of initializing of the hardware, sequential control of red light and infrared source, A/D sampling and filtering in data processing, recognition of pulse wave, calculation of blood oxygen saturation, sequential control of liquid crystal display and signal displays.
In the process of calculating blood oxygen saturation with pulse plethysmagraphy, we should sample and get the data of red and infrared first, and find the highest and the lowest values in a period by recognizing pulse wave characteristic parameter, at last, derive R from the followed formula: (9) Algorithm of Program Realization R=(AC660/DC660)/(AC940/DC940) // The ratio of absorption SPO2=108.6-23.6R // Blood oxygen saturation 5 Testing of system Figure 3 Physical map hardware Experiment result with a testing set of different people, a group include 50 people as a sample, and every people repeat 3 times, shows that the accuracy of this design is 96.45%, proved that the system function and accuracy can meet the needs completely, moreover, it provides a great deal of reliable basis for clinical diagnosis and treatment in a accurate, simple and rapid way.
(v) Low pass filter It will be necessary to diminish direct current component before A/D data collector and convertor, because the alternating element is the only parameter needed.
Figure 2 Functional block diagram of the system working 4 Software design The software consists of initializing of the hardware, sequential control of red light and infrared source, A/D sampling and filtering in data processing, recognition of pulse wave, calculation of blood oxygen saturation, sequential control of liquid crystal display and signal displays.
In the process of calculating blood oxygen saturation with pulse plethysmagraphy, we should sample and get the data of red and infrared first, and find the highest and the lowest values in a period by recognizing pulse wave characteristic parameter, at last, derive R from the followed formula: (9) Algorithm of Program Realization R=(AC660/DC660)/(AC940/DC940) // The ratio of absorption SPO2=108.6-23.6R // Blood oxygen saturation 5 Testing of system Figure 3 Physical map hardware Experiment result with a testing set of different people, a group include 50 people as a sample, and every people repeat 3 times, shows that the accuracy of this design is 96.45%, proved that the system function and accuracy can meet the needs completely, moreover, it provides a great deal of reliable basis for clinical diagnosis and treatment in a accurate, simple and rapid way.