Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: June 2010
Authors: Guo Zheng Wang, Hang Ying Lou
All the data are get after the smoothing process.We use SPSS
statistical software to process the statistical data.
The speed decreases as early as in the last two step touching the ground and leaving the ground, the average reduction is 0.10m/s.
The average reduction is 0.06m/s.
The leaving ground angles of the last two steps are 0.2 and 3.1 degrees greater than those of foreign players, the last two step showed no significant difference (P> 0.05), but the last one step shows a great difference (P <0.05). the leaving ground angle will contribute to reduction of the horizontal pushing strength. thus affecting the speed of recovering the speed in the pushing stage.
The value of the landing angle and take-off angle Last two step Last one step Landing Leaving Landing leaving Domestic Players( x ) 85.5±2.95 63.1±2.8 72.70±3.4 62.1±3.2 Foreign Players( x ) 86.2±2.9 62.9±2.6 77.80±2.90 59±3.10 difference -0.7 0.2 -5.1 3.1 P >0.05 >0.05 <0.01 <0.05 The influence of the landing angle and leaving ground knee angle on the speed In current documents and data, very few literature studies the influence of the landing angle and leaving ground knee angle on run-up speed.
The speed decreases as early as in the last two step touching the ground and leaving the ground, the average reduction is 0.10m/s.
The average reduction is 0.06m/s.
The leaving ground angles of the last two steps are 0.2 and 3.1 degrees greater than those of foreign players, the last two step showed no significant difference (P> 0.05), but the last one step shows a great difference (P <0.05). the leaving ground angle will contribute to reduction of the horizontal pushing strength. thus affecting the speed of recovering the speed in the pushing stage.
The value of the landing angle and take-off angle Last two step Last one step Landing Leaving Landing leaving Domestic Players( x ) 85.5±2.95 63.1±2.8 72.70±3.4 62.1±3.2 Foreign Players( x ) 86.2±2.9 62.9±2.6 77.80±2.90 59±3.10 difference -0.7 0.2 -5.1 3.1 P >0.05 >0.05 <0.01 <0.05 The influence of the landing angle and leaving ground knee angle on the speed In current documents and data, very few literature studies the influence of the landing angle and leaving ground knee angle on run-up speed.
Online since: November 2012
Authors: Dmytro Vasiukov, Stephane Panier, Abdelkader Hachemi
Supporting the concept of non-linearity composites due to damage in [3] authors described evaluation of critical values of thermodynamic forces based on the tests data.
The program is post-treatment software dealing with data given after performed analysis in ABAQUS.
These data are input for executive direct simulation.
Results of simulation are written back to ABAQUS data base file to be visualized.
These results are in reasonably good agreement with published in literature and experimental data.
The program is post-treatment software dealing with data given after performed analysis in ABAQUS.
These data are input for executive direct simulation.
Results of simulation are written back to ABAQUS data base file to be visualized.
These results are in reasonably good agreement with published in literature and experimental data.
Online since: February 2014
Authors: Jana Stachová, Marcela Fridrichová, Jan Gemrich, Radek Magrla
By influence of establishment of dynamic balance saturated SOx vapours before finished decomposition of calcium sulphate it came up to mentioned effect and by this against draft of substantial reduction of alite in arisen clinker.
The sharper torrid modes 1400oC/5 hours to 1450oC/3 hours has shown as suitable, whose thermal energy is enough to perfect alite synthesis, but it was not insofar high yet to cue consolidation of structure and by this the reduction of reactivity too.
CO2 emission saving, expressed as reduction of carbon dioxide content in given raw powder in relation to similarly drafted raw mixture, in which the whole lime would come only from calcium carbonate, was calculated in level 6,5 % for this clinker.
ISSN 0008-8919 [2] EN 197-1 ed.2, Cement - Part 1: Composition, specifications and conformity criteria for common cements [3] Poon C.S., Kou S.C., Lam L., Lin Z.S.: Activation of Fly Ash/Cement Systems Using Calcium Sulfate Anhydrite (CaSO4), Cement and Concret Research, www.sciencedirect.com, 2001 [4] Chemical Comparison of Fly Ash and Portland Cement, Headwaters Resources, Data 2007 [online], www.flyash.com [5] Sebök, T, Šimoník J, Kulísek K, The compressive strength of samples containing fly ash with high content of calcium sulfate and calcium oxide, Cement and Concrete Research 31 (2001) 1101 – 1107
[7] Fly Ash – Types and Benefits, Headwaters Resources, Data 2007 [online], URL: www.flyash.com
The sharper torrid modes 1400oC/5 hours to 1450oC/3 hours has shown as suitable, whose thermal energy is enough to perfect alite synthesis, but it was not insofar high yet to cue consolidation of structure and by this the reduction of reactivity too.
CO2 emission saving, expressed as reduction of carbon dioxide content in given raw powder in relation to similarly drafted raw mixture, in which the whole lime would come only from calcium carbonate, was calculated in level 6,5 % for this clinker.
ISSN 0008-8919 [2] EN 197-1 ed.2, Cement - Part 1: Composition, specifications and conformity criteria for common cements [3] Poon C.S., Kou S.C., Lam L., Lin Z.S.: Activation of Fly Ash/Cement Systems Using Calcium Sulfate Anhydrite (CaSO4), Cement and Concret Research, www.sciencedirect.com, 2001 [4] Chemical Comparison of Fly Ash and Portland Cement, Headwaters Resources, Data 2007 [online], www.flyash.com [5] Sebök, T, Šimoník J, Kulísek K, The compressive strength of samples containing fly ash with high content of calcium sulfate and calcium oxide, Cement and Concrete Research 31 (2001) 1101 – 1107
[7] Fly Ash – Types and Benefits, Headwaters Resources, Data 2007 [online], URL: www.flyash.com
Online since: November 2015
Authors: Valentin Ionut Misirliu, Oana Dumitrescu, Bogdan Gherman, Daniel Eugeniu Crunteanu
In the past, two offset stream nozzle concepts were used for jet noise reduction.
This was accomplished with less than a half percent reduction in the nozzle mass flow and thrust performance at take-off conditions [4].
The input data are calculated using the engine cycle calculation program in which as imput data were taken the data about turbojet CFM56 7B-27 [6].
Thus for output of the jet after the secondary flow were considered the following data : - velocity = 308 m/s - temperature = 294 K - turbulence intensity = 5% - jet exit direction = perpendicular to/on inlet For the jet exit after the primary flow were considered the following data : - velocity = 465 m/s - temperature = 721 K - turbulence intensity = 5% - jet exit direction = perpendiculat to/on inlet The geometry of the nozzle is represented in Fig. 2.This is a copy of the geometry of the nozzle reaction from the turbojet CFM 56.
[3] Vance Dippold III, Lancert Foster, Michael Wiese, Computational Analyses of Offset Stream Nozzles for Noise Reduction , Journal of Propulsion and Power, Vol.25, No 1, January – February 2009
This was accomplished with less than a half percent reduction in the nozzle mass flow and thrust performance at take-off conditions [4].
The input data are calculated using the engine cycle calculation program in which as imput data were taken the data about turbojet CFM56 7B-27 [6].
Thus for output of the jet after the secondary flow were considered the following data : - velocity = 308 m/s - temperature = 294 K - turbulence intensity = 5% - jet exit direction = perpendicular to/on inlet For the jet exit after the primary flow were considered the following data : - velocity = 465 m/s - temperature = 721 K - turbulence intensity = 5% - jet exit direction = perpendiculat to/on inlet The geometry of the nozzle is represented in Fig. 2.This is a copy of the geometry of the nozzle reaction from the turbojet CFM 56.
[3] Vance Dippold III, Lancert Foster, Michael Wiese, Computational Analyses of Offset Stream Nozzles for Noise Reduction , Journal of Propulsion and Power, Vol.25, No 1, January – February 2009
Online since: January 2009
Authors: Yu Hua Pang, Jia Wei Yuan, Qi Sun, Yang Lei Hu
Basic clad sheet from different ply Al1060/Al3003 sheets was obtained with an
initial rolling reduction of 44% at 450°C followed by annealing at 300°C, then ACR was with
reduction of 50% at 550°C from STS304 on each side.
Basic clad sheets from different ply of Al1060/Al3003 were obtained with an initial rolling reduction of 44.4% at 450°C followed by annealing at 300°C (step 1), then ACR was done with reduction of 50% at 550°C from STS304 on each side(step 2).
In the tension test, a Universal Materials testing Machine (WDW-100D) was used and data were obtained from three samples for the same condition.
Basic clad sheets from 18 ply Al1060/Al3003 sheets was obtained with an initial rolling reduction of 44% at 450°C followed by annealing at 300°C, then 20 ply clad sheet was ACR with reduction of 50% at 550°C from STS304 on each side. 3.
Basic clad sheets from different ply of Al1060/Al3003 were obtained with an initial rolling reduction of 44.4% at 450°C followed by annealing at 300°C (step 1), then ACR was done with reduction of 50% at 550°C from STS304 on each side(step 2).
In the tension test, a Universal Materials testing Machine (WDW-100D) was used and data were obtained from three samples for the same condition.
Basic clad sheets from 18 ply Al1060/Al3003 sheets was obtained with an initial rolling reduction of 44% at 450°C followed by annealing at 300°C, then 20 ply clad sheet was ACR with reduction of 50% at 550°C from STS304 on each side. 3.
Online since: December 2012
Authors: Li Zhang, Yan Miao Ma, Yuan Yuan Zhang
The simulation results show that the low-frequency noise radiation near the end of the piston-cylinder is directional and stronger than that of the other side, which offers a valuable reference for noise reduction.
This paper provides an effective research method for the semi-hermetic reciprocating compressor’s noise reduction Introduction In recent years, with the fast development of agriculture, fisheries and logistics efficiency, higher requirements on the food market have been put forward.
It provides a new research method for studying the semi-hermetic refrigeration compressor noise problem, and a reasonable reference for selecting reasonable sound absorption materials for further noise reduction.
Once these data are known, it’s possible to calculate the structural displacement response and the node pressure, speed and strength in the sound field.
This makes the noise reduction measures more targeted.
This paper provides an effective research method for the semi-hermetic reciprocating compressor’s noise reduction Introduction In recent years, with the fast development of agriculture, fisheries and logistics efficiency, higher requirements on the food market have been put forward.
It provides a new research method for studying the semi-hermetic refrigeration compressor noise problem, and a reasonable reference for selecting reasonable sound absorption materials for further noise reduction.
Once these data are known, it’s possible to calculate the structural displacement response and the node pressure, speed and strength in the sound field.
This makes the noise reduction measures more targeted.
Online since: September 2008
Authors: Krzysztof Wolski, Michèle Pijolat, Céline Cabet, Gouenou Girardin, Jerome Chapovaloff, Fabien Rouillard
Role of chromium in the chromia reduction.
Exception made of the point in He-In1, the experimental TA for both commercial alloys in Fig. 6 globally follow the general trend predicted through (Eq. 3) and the results obtained on Inconel 617 are in good agreement with the data from reference [9].
The experimental data at low P(CO) (bottom of the graph) show a deviation toward curves for higher a(Cr).
Besides, it was elsewhere [6] demonstrated for Inconel 617 that the partial pressure of water vapour during step 1 (oxidation at 850°C) influences the value of TA, but in Fig. 6 we gather data irrespective of the atmosphere moisture in the range 0.5-6 µbar.
Therefore, the relevant thermodynamic data have to be the interfacial activities which could be significantly different from the bulk values.
Exception made of the point in He-In1, the experimental TA for both commercial alloys in Fig. 6 globally follow the general trend predicted through (Eq. 3) and the results obtained on Inconel 617 are in good agreement with the data from reference [9].
The experimental data at low P(CO) (bottom of the graph) show a deviation toward curves for higher a(Cr).
Besides, it was elsewhere [6] demonstrated for Inconel 617 that the partial pressure of water vapour during step 1 (oxidation at 850°C) influences the value of TA, but in Fig. 6 we gather data irrespective of the atmosphere moisture in the range 0.5-6 µbar.
Therefore, the relevant thermodynamic data have to be the interfacial activities which could be significantly different from the bulk values.
Online since: June 2014
Authors: Jia Bin Wu, Jian Cheng Zhang, He Xiang Zheng, Xue Song Cao
Agreement is good between simulated by SIRMOD model and measured values through field trials the measured data of water flow advance and regression process, and indicating with SIRMOD model can simulate border irrigation process.
The times of irrigation in the whole growth period of wheat are four in 2012 year, and the border field parameters calculated by measured field irrigation values are shown in Table 1, Soil parameters are given in the table is according to the average value of four irrigation test data, which can basically reflect soil infiltration and field surface water resistance characteristics.
Simulation and analysis of land roughness effects on irrigation efficiency Irrigation experiment data of border irrigation are the basic samples in the research of land roughness effects on irrigation efficiency and the parameters according to Table 1.
The simulated values are in good agreement with the measured values by SIRMOD model to simulate water flow advance and recession process using field measured data in condition leveling precision is about 4.93cm and the land roughnes is 0.130 from Figure 1.
and regression becomes uneven, so irrigation efficiency significant reduction with the field surface roughness increases.
The times of irrigation in the whole growth period of wheat are four in 2012 year, and the border field parameters calculated by measured field irrigation values are shown in Table 1, Soil parameters are given in the table is according to the average value of four irrigation test data, which can basically reflect soil infiltration and field surface water resistance characteristics.
Simulation and analysis of land roughness effects on irrigation efficiency Irrigation experiment data of border irrigation are the basic samples in the research of land roughness effects on irrigation efficiency and the parameters according to Table 1.
The simulated values are in good agreement with the measured values by SIRMOD model to simulate water flow advance and recession process using field measured data in condition leveling precision is about 4.93cm and the land roughnes is 0.130 from Figure 1.
and regression becomes uneven, so irrigation efficiency significant reduction with the field surface roughness increases.
Online since: July 2014
Authors: S.P. Anbuudayasankar, Abishek V. Iyer, H. Adithya Bhat, Kumar K. Krishna
These auditing activities have to go through the following set of procedures to obtain the best possible data which have been shown in Fig.1.
Energy auditing process Data collection: Key areas within the complete process where energy is consumed in a foundry are identified, accounted and enlisted.
Analysis: The data collected for each enlisted energy consuming source is compared to a theoretical analysis that would have been conceived during the setting up of the foundry.
Implementing Green strategies in the Manufacturing Process Data collected from the case study performed in a foundry in Tamil Nadu, was used in identifying areas for implementing green strategies.
· Precast plank for flooring/roofing ensure 12% overall cost saving and 20% reduction in construction time [13]
Energy auditing process Data collection: Key areas within the complete process where energy is consumed in a foundry are identified, accounted and enlisted.
Analysis: The data collected for each enlisted energy consuming source is compared to a theoretical analysis that would have been conceived during the setting up of the foundry.
Implementing Green strategies in the Manufacturing Process Data collected from the case study performed in a foundry in Tamil Nadu, was used in identifying areas for implementing green strategies.
· Precast plank for flooring/roofing ensure 12% overall cost saving and 20% reduction in construction time [13]
Online since: February 2015
Authors: Jing Zhang, Hong Xia Guo
This passage first reduces the dimension of expenditure index data using principal component analysis.
The establishment of the model Data sources and analysis.
After 2011 China Statistical Yearbook did not release on expenditure on army data.
Because of the limited data, we chose the data from 1997 to 2010 to analysis and data of 2011 to predict and compare.
It is a new attempt to analysis complex high dimensional data using method combined with the principal component and semi parameter model, which can be used as the preferred method to analysis many complex data.
The establishment of the model Data sources and analysis.
After 2011 China Statistical Yearbook did not release on expenditure on army data.
Because of the limited data, we chose the data from 1997 to 2010 to analysis and data of 2011 to predict and compare.
It is a new attempt to analysis complex high dimensional data using method combined with the principal component and semi parameter model, which can be used as the preferred method to analysis many complex data.