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Online since: April 2014
Authors: Yong Han, Mu Qiao, Xue Wan, Qing Chang
Finally, measurement results are validated based on the known data.
It is noted that most of the filters help noise reduction but lead to the loss of edge strength in the meantime.
Pixel equivalent n=D/N, obtained by the actual distance D of the part and the concrete data shown in Table 1.
Table 1 Calculation data of out-of-gauge freights end elevation lateral pixel equivalent The abscissa of A left The abscissa of B right pixel number actual distance(mm) pixel equivalent(mm) 699 71 629 2970.00 4.72 Determination of unknown points coordinates: There are 3 groups’ data of the end of out-of-gauge goods: upper breadth, lower breadth and protrusion portion on the left respectively.
The concrete data is shown in Table 1 and Table 2.
It is noted that most of the filters help noise reduction but lead to the loss of edge strength in the meantime.
Pixel equivalent n=D/N, obtained by the actual distance D of the part and the concrete data shown in Table 1.
Table 1 Calculation data of out-of-gauge freights end elevation lateral pixel equivalent The abscissa of A left The abscissa of B right pixel number actual distance(mm) pixel equivalent(mm) 699 71 629 2970.00 4.72 Determination of unknown points coordinates: There are 3 groups’ data of the end of out-of-gauge goods: upper breadth, lower breadth and protrusion portion on the left respectively.
The concrete data is shown in Table 1 and Table 2.
Online since: June 2020
Authors: Nukman bin Yusoff, Awais Farooqi
This problem was successfully minimized to a total reduction of 25% in friction by implementing micro-texturing on the surfaces of piston ring.
Reduction in contact length and entrapment of wear debris were reported to be the main reason for the friction reduction while using textured surfaces at the contact interfaces [17].
It is possible to get enhanced surface quality with significant reduction in grinding forces by using MQL techniques with nano fluids.
· Experiment series 2: Data collection of the cutting force and cutting temperature
Analysis of test results of surface textured cutting tools compared with conventional cutting tool would give comparison performance data of tool wear under identical machining conditions, surface finish evaluation and cutting force under identical machining conditions.
Reduction in contact length and entrapment of wear debris were reported to be the main reason for the friction reduction while using textured surfaces at the contact interfaces [17].
It is possible to get enhanced surface quality with significant reduction in grinding forces by using MQL techniques with nano fluids.
· Experiment series 2: Data collection of the cutting force and cutting temperature
Analysis of test results of surface textured cutting tools compared with conventional cutting tool would give comparison performance data of tool wear under identical machining conditions, surface finish evaluation and cutting force under identical machining conditions.
Online since: May 2011
Authors: Yang Li, Lian Zhou Jiang, Xiao Nan Sui
Data analysis was carried out with statistical analysis software SAS9.1.
The following quadratic model had explained experimental data: Where y was oil recoveries from cream (%), X1, X2, and X3 were factor coding values of freezing temperature, freezing time and thawing temperature (see Tab. 1).
Tab. 5 Results of response surface optimization Factor Level Value Actual Value Conversion Order Value Oil Recoveries from Response Surface Optimization of Cream (%) Freezing Temperature x1 (ºC) 0.55319 -18.21276 -18 Freezing Time x2 ( h ) 0.85163 12.55489 12.5 Thawing Time x3 (ºC) 0.70890 57.089 57 93.41±0.59 Dimension reduction analysis The freezing-thawing parameters of the oil recovery in dimension reduction analysis (Fig.2), show oil recovery rate increases with the decrease of freezing temperature and then gradually levels off.
It is shows that the changes of proteins’ secondary structure in emulsion lead to the reduction of emulsion capacity, and ultimately release the oil from emulsion.
It is shows that the changes of proteins’ secondary structure in emulsion lead to the reduction of emulsion capacity, and ultimately release the oil from emulsion.
The following quadratic model had explained experimental data: Where y was oil recoveries from cream (%), X1, X2, and X3 were factor coding values of freezing temperature, freezing time and thawing temperature (see Tab. 1).
Tab. 5 Results of response surface optimization Factor Level Value Actual Value Conversion Order Value Oil Recoveries from Response Surface Optimization of Cream (%) Freezing Temperature x1 (ºC) 0.55319 -18.21276 -18 Freezing Time x2 ( h ) 0.85163 12.55489 12.5 Thawing Time x3 (ºC) 0.70890 57.089 57 93.41±0.59 Dimension reduction analysis The freezing-thawing parameters of the oil recovery in dimension reduction analysis (Fig.2), show oil recovery rate increases with the decrease of freezing temperature and then gradually levels off.
It is shows that the changes of proteins’ secondary structure in emulsion lead to the reduction of emulsion capacity, and ultimately release the oil from emulsion.
It is shows that the changes of proteins’ secondary structure in emulsion lead to the reduction of emulsion capacity, and ultimately release the oil from emulsion.
Online since: October 2015
Authors: Janice Lynn Ayog, Mohd Radzif Taharin, Tang Zi Sheng
Figure 1: The map of the Turtle Islands Park
Research Methodology and Data Collection
The rainfall data analysed in this study were obtained from the Malaysian Meteorological Department and the Sabah Parks office.
The Malaysian Meteorological Department supplied daily rainfall data from the Sandakan Meteorological Station (Station ID: 5851001) for the period of 1st January 2003 to 31st December 2009.
However, it is duly noted that there is no rainfall data available in 1996 to 1997.
Results and Discussions The rainfall frequency analysis was done using the 27-year rainfall data (in Bakkungan Kechil island) and 28-year rainfall data (in Selingaan and Gulisaan islands) obtained from the gauging stations in the Turtle Islands Park.
By using daily rainfall data instead of monthly interval, the rainwater availability analysis may also be improved.
The Malaysian Meteorological Department supplied daily rainfall data from the Sandakan Meteorological Station (Station ID: 5851001) for the period of 1st January 2003 to 31st December 2009.
However, it is duly noted that there is no rainfall data available in 1996 to 1997.
Results and Discussions The rainfall frequency analysis was done using the 27-year rainfall data (in Bakkungan Kechil island) and 28-year rainfall data (in Selingaan and Gulisaan islands) obtained from the gauging stations in the Turtle Islands Park.
By using daily rainfall data instead of monthly interval, the rainwater availability analysis may also be improved.
Online since: November 2015
Authors: Vladimir Stojanović, Sanel Jakupović, Esad Jakupović, Dragana Trnavac
Data and methods
Data were collected from authorized distributors, importers, dealers, concessionaires and thus arrive at the results presented in the paper by certain car brands.
We used the statistical data collected by the Agency for identification documents, records and data exchange.
There are small differences in data on new cars sale in Bosnia and Herzegovina, depending on data source and for the analysis of new cars sold in Bosnia and Herzegovina for the period 2007-2014, the data from Web site: http://bihamk.ba/ [11] were used.
Data used in the table were extracted from yearly reports of BIHAMK and presented in an aggregated manner for easier interpretation.
If we analyze the data in 2014, there has been a decline in sales of 53.67% compared to 2007.
We used the statistical data collected by the Agency for identification documents, records and data exchange.
There are small differences in data on new cars sale in Bosnia and Herzegovina, depending on data source and for the analysis of new cars sold in Bosnia and Herzegovina for the period 2007-2014, the data from Web site: http://bihamk.ba/ [11] were used.
Data used in the table were extracted from yearly reports of BIHAMK and presented in an aggregated manner for easier interpretation.
If we analyze the data in 2014, there has been a decline in sales of 53.67% compared to 2007.
Online since: August 2007
Authors: Emma McCummiskey, T.R. Ashton, D.G. Stevenson, William Dempster, David Nash
The data displayed for the 100
th cycle of the material shows an increasingly pronounced shift in the
hysteresis curve with elevated temperature.
The 1.8mm diameter wire data is therefore used as a basis for investigation into the computational model.
The experimental data discussed previously was used as the input to the computational model created in ANSYS v10.0.
However if the computational model is put through 100 cycles as with the experimental data (Fig. 7b) the data no longer approximates the behaviour with the computational model remaining as the first cycle.
The computational model performs well against the experimental data used, especially during the first linear elastic region and the loading plateau.
The 1.8mm diameter wire data is therefore used as a basis for investigation into the computational model.
The experimental data discussed previously was used as the input to the computational model created in ANSYS v10.0.
However if the computational model is put through 100 cycles as with the experimental data (Fig. 7b) the data no longer approximates the behaviour with the computational model remaining as the first cycle.
The computational model performs well against the experimental data used, especially during the first linear elastic region and the loading plateau.
Online since: September 2011
Authors: Michal Krzyzanowski
The second stage of the numerical analysis gives a basis for the reduction in the oxide scale model for engineering applications.
Thus, the reduction or adjustment in the model for desired technological operation is a final stage towards accurate prediction.
The main purpose of the most of measurements is to upgrade the numerical model with data reflecting properties that are more specific for the particular oxide scale under investigation and are critical for the analysis.
In hot „sandwich“ rolling, the slabs are closed together with the two scale layers trapped between the slabs, which can then be rolled at different temperatures and reductions.
The availability of experimental data exhibited that through-thickness cracking is an essentially brittle process of unstable crack propagation for majority of cases.
Thus, the reduction or adjustment in the model for desired technological operation is a final stage towards accurate prediction.
The main purpose of the most of measurements is to upgrade the numerical model with data reflecting properties that are more specific for the particular oxide scale under investigation and are critical for the analysis.
In hot „sandwich“ rolling, the slabs are closed together with the two scale layers trapped between the slabs, which can then be rolled at different temperatures and reductions.
The availability of experimental data exhibited that through-thickness cracking is an essentially brittle process of unstable crack propagation for majority of cases.
Online since: September 2013
Authors: Di Ming Lou, Liang Fang, Zhi Yuan Hu, Pi Qiang Tan
According the data of instantaneous emission and GPS, the diesel vehicle emission characteristic is analysed and evaluated.
Vehicle Specific Power(VSP), a kind of parameter to analysis telemeasuring data of comprehensive operating conditions, is put forward by José Luis Jiménez Palacios from MIT.
(2) In different road types and different VSP, the PN and PM of Bu10 and Bu20 are obviously less than that of Bu0, and the reduction becomes more obvious as the proportion of butanol increased.
(4) Because of the oxygen containing, butanol-diesel blends can obviously minish the particle size, which leads to the reduction of PN and PM emissions.
Reduction in emissions of nitrogen oxides, particulate matter and polycyclic aromatic hydrocarbon by adding water-containing butanol into a diesel-fueled engine generator [J].
Vehicle Specific Power(VSP), a kind of parameter to analysis telemeasuring data of comprehensive operating conditions, is put forward by José Luis Jiménez Palacios from MIT.
(2) In different road types and different VSP, the PN and PM of Bu10 and Bu20 are obviously less than that of Bu0, and the reduction becomes more obvious as the proportion of butanol increased.
(4) Because of the oxygen containing, butanol-diesel blends can obviously minish the particle size, which leads to the reduction of PN and PM emissions.
Reduction in emissions of nitrogen oxides, particulate matter and polycyclic aromatic hydrocarbon by adding water-containing butanol into a diesel-fueled engine generator [J].
Online since: September 2014
Authors: Mario Rosso, Ildiko Peter, Ivano Gattelli, Gian Luigi Chiarmetta, Marcello Boschini, Renzo Moschini
Introduction
Recent research in materials science and production processes toward energy consumption and weight reduction gained significant attention [1-3].
Employing new and/or recently developed semi-solid methods as squeeze casting, thixoforming and rheocasting one is able to produce component with at least the same level of properties and performances, but nevertheless the half-century evolution there is a serious demand for additional and more detailed rheological data [4-9].
Using these processes, significant reduction of the defects was obtained, as well as good surface quality and high dimensional accuracy [10, 11].
In addition, reduction of about 5% of the total weight has been achieved.
[13] Rosso M., Peter I., Chiarmetta G., Gatelli I., “Extremely light weight rheocast components for auto motive”, Diffusion and Defect Data Pt.B: Solid State Phenomena 192-193, 2012, pp. 545-550
Employing new and/or recently developed semi-solid methods as squeeze casting, thixoforming and rheocasting one is able to produce component with at least the same level of properties and performances, but nevertheless the half-century evolution there is a serious demand for additional and more detailed rheological data [4-9].
Using these processes, significant reduction of the defects was obtained, as well as good surface quality and high dimensional accuracy [10, 11].
In addition, reduction of about 5% of the total weight has been achieved.
[13] Rosso M., Peter I., Chiarmetta G., Gatelli I., “Extremely light weight rheocast components for auto motive”, Diffusion and Defect Data Pt.B: Solid State Phenomena 192-193, 2012, pp. 545-550
Online since: June 2010
Authors: Algirdas Vaclovas Valiulis, Aurimas Jurčius, Olegas Černašejus
In the heat treatment the part is heated until the yield point is reduced to less than the residual
stress, which in turn causes local plastic distortion, decrease of the residual stress intensity and
reduction of hardness.
- Reduction of stress corrosion resistance.
Chemical composition of steel specimens (manufacturer's data) Steel grade Composition (mass), % C Si Mn Cr Ni S P S355J2 0.16 0.55 1.1 0.22 0.15 0.015 0.02 Table 2.
Mechanical properties of steel specimens (manufacturer's data) Steel grade Tensile strength, Rm, MPa Yield strength, Re, MPa Elongation, A5, % Impact work ISO-V KV, J/cm 2 S355J2 530 390 24 120 (20o C) Heat treatment Heat treatment was carried out in the furnace according to Standard CR ISO/TR 17663 [5].
The decrease in hardness resulting from both treatments was similar, indicating an effective reduction in residual stress.
- Reduction of stress corrosion resistance.
Chemical composition of steel specimens (manufacturer's data) Steel grade Composition (mass), % C Si Mn Cr Ni S P S355J2 0.16 0.55 1.1 0.22 0.15 0.015 0.02 Table 2.
Mechanical properties of steel specimens (manufacturer's data) Steel grade Tensile strength, Rm, MPa Yield strength, Re, MPa Elongation, A5, % Impact work ISO-V KV, J/cm 2 S355J2 530 390 24 120 (20o C) Heat treatment Heat treatment was carried out in the furnace according to Standard CR ISO/TR 17663 [5].
The decrease in hardness resulting from both treatments was similar, indicating an effective reduction in residual stress.