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Online since: July 2006
Authors: Carlos H. Cáceres
Unless stated
otherwise the properties are as given in the CES[12] data base.
c Data from references [13, 14].
As mentioned, a 10 kg reduction in the mass of the car increases its fuel efficiency by 40 m/lg.
The α-values ($US/kg) indicate the cost penalty per kg of mass reduction.
The α-values (lg/kg) indicate the CO2 equivalent per kg of mass reduction.
c Data from references [13, 14].
As mentioned, a 10 kg reduction in the mass of the car increases its fuel efficiency by 40 m/lg.
The α-values ($US/kg) indicate the cost penalty per kg of mass reduction.
The α-values (lg/kg) indicate the CO2 equivalent per kg of mass reduction.
Online since: October 2012
Authors: Hua Qiang Liu, Shi Yin, Xin Li, Fei Zhang
In summary, when the edger reduction is more than 10 mm, the SSC will work.
In summary, the correct setting of the edger reduction and the taper length of the every segment are the key to SSC, and the edger reduction is more important.
Therefore, the edger reduction is one of the important factors in the SSC, and the effect of the edger reduction on the SSC must be considered.
By the FEM and according to the better data of SSC applied in the field, the SSC model can be regressed as follows: (2) Where x is the distance along the taper length from the head end or tail end; a1, a2, a3, and a4 are the multiple regression coefficient of SSC model, and the coefficient will be changed with the different kinds of steel grade, width and different rolling pass; Δf(T) is the coefficient for temperature compensation; T is rolling temperature.
(2) The edger reduction and the number of segments along the taper length are the key to SSC, and the setting value of edger reduction is more important
In summary, the correct setting of the edger reduction and the taper length of the every segment are the key to SSC, and the edger reduction is more important.
Therefore, the edger reduction is one of the important factors in the SSC, and the effect of the edger reduction on the SSC must be considered.
By the FEM and according to the better data of SSC applied in the field, the SSC model can be regressed as follows: (2) Where x is the distance along the taper length from the head end or tail end; a1, a2, a3, and a4 are the multiple regression coefficient of SSC model, and the coefficient will be changed with the different kinds of steel grade, width and different rolling pass; Δf(T) is the coefficient for temperature compensation; T is rolling temperature.
(2) The edger reduction and the number of segments along the taper length are the key to SSC, and the setting value of edger reduction is more important
Online since: March 2006
Authors: Ki Weon Kang, Young Min Do, Jung Kyu Kim, Yong Su Kim
The results are in
conformance with the experiments: therefore, Eq. (8) allows fatigue data of the impacted laminates
under 2-stage loading to be correlated with constant amplitude data of the impacted laminates.
To correlate the fatigue life under 2-stage loading with the constant amplitude life through Eq. (8), however, the information about the constant amplitude data of the impacted laminates should be known.
To overcome this shortcome, a new model has been proposed, by which the equivalent stress can be obtained from the residual strength of the impacted laminates and constant amplitude fatigue data of the unimpacted laminates.
It is also worthy to note that Eq. (9) enables us fatigue data under 2-stage loading for the unimpacted laminates as well as for the impacted laminates to be correlated with constant amplitude data for the unimpacted laminates.
These models enable us fatigue data of the unimpacted and impacted laminates under 2-stage loading to be correlated with constant amplitude data of the unimpacted laminates.
To correlate the fatigue life under 2-stage loading with the constant amplitude life through Eq. (8), however, the information about the constant amplitude data of the impacted laminates should be known.
To overcome this shortcome, a new model has been proposed, by which the equivalent stress can be obtained from the residual strength of the impacted laminates and constant amplitude fatigue data of the unimpacted laminates.
It is also worthy to note that Eq. (9) enables us fatigue data under 2-stage loading for the unimpacted laminates as well as for the impacted laminates to be correlated with constant amplitude data for the unimpacted laminates.
These models enable us fatigue data of the unimpacted and impacted laminates under 2-stage loading to be correlated with constant amplitude data of the unimpacted laminates.
Online since: July 2024
Authors: Jayant Jain, Anuz Zindal
The results reveal an increment of number density, whereas the reduction in the size of precipitates with decrease in the aging temperature for the varying aging times.
The statistical data of continuous precipitates was determined using the Image J software with considering ~ 1000 precipitates, whereas ~ 100 precipitates from were chosen for the analysis of grain boundary precipitates and average value with standard deviation were reported.
Moreover, reduction in solid solubility of solute (Al) in the Mg matrix with decreasing temperature as basis to the phase diagram of Mg-Al alloy system [6], increases the driving force for the nucleation of precipitates.
Nevertheless, the increment in the size of continuous precipitates from 250°C to 330°C for the different aging times (Fig. 5 a) is compensated with the reduction in the number density for the same aging conditions (Fig. 4 a).
This culminates in the finer distribution of continuous precipitates within grain with reduction in inter-particle spacing (Fig. 3).
The statistical data of continuous precipitates was determined using the Image J software with considering ~ 1000 precipitates, whereas ~ 100 precipitates from were chosen for the analysis of grain boundary precipitates and average value with standard deviation were reported.
Moreover, reduction in solid solubility of solute (Al) in the Mg matrix with decreasing temperature as basis to the phase diagram of Mg-Al alloy system [6], increases the driving force for the nucleation of precipitates.
Nevertheless, the increment in the size of continuous precipitates from 250°C to 330°C for the different aging times (Fig. 5 a) is compensated with the reduction in the number density for the same aging conditions (Fig. 4 a).
This culminates in the finer distribution of continuous precipitates within grain with reduction in inter-particle spacing (Fig. 3).
Online since: February 2016
Authors: M. Vinyas, G. Srinivasa Rao, C.S. Venkatesha, M. Vishwas
Introduction
For any space mission to be successful it is necessary to guide the satellite to revolve in the right orbit and gather all the required data without any flaws.
By replacing the conventional space craft materials by the composites, mass reduction can be achieved as high as 40 percent [5].
(Stiffness requirement) · The mass reduction must be 25% or more compared to existing Aluminium model
Layup Thickness (in mm) 1st natural frequency (in Hz) Mass (in grams) % Reduction in mass 1 [0/45/0/45/0/45] 0.6 109 133.4 48.7 2 [0/45/0/45/0/45/0/45] 0.8 143 177.8 31.6 Results show that, even though an appreciable mass reduction has been achieved, the specified stiffness requirements are not met.
· An effective increase in mass reduction (47.3%) has been achieved
By replacing the conventional space craft materials by the composites, mass reduction can be achieved as high as 40 percent [5].
(Stiffness requirement) · The mass reduction must be 25% or more compared to existing Aluminium model
Layup Thickness (in mm) 1st natural frequency (in Hz) Mass (in grams) % Reduction in mass 1 [0/45/0/45/0/45] 0.6 109 133.4 48.7 2 [0/45/0/45/0/45/0/45] 0.8 143 177.8 31.6 Results show that, even though an appreciable mass reduction has been achieved, the specified stiffness requirements are not met.
· An effective increase in mass reduction (47.3%) has been achieved
Online since: January 2015
Authors: Anatolijs Borodinecs, Aleksandrs Zajacs, Jurgis Zemitis, Aleksejs Prozuments, Kristina Tihomirova
According to Covenant of Mayor (www.covenantofmayors.eu) data there are 3414 cities across the Europe and eastern partners which already have Sustainable Energy Action Plan.
The data transfer is done by radio waves to special transponders and base.
Further all data by fixed network is transferred to central data base.
All data from more than 8000 heat meters can be accessed in three hours.
Reading data at a specific time enables accurate heat data analysis and evaluation of each user's heat consumption dynamics.
The data transfer is done by radio waves to special transponders and base.
Further all data by fixed network is transferred to central data base.
All data from more than 8000 heat meters can be accessed in three hours.
Reading data at a specific time enables accurate heat data analysis and evaluation of each user's heat consumption dynamics.
Online since: July 2015
Authors: Rajesh Deoliya, P.S. Chani, Ashok Kumar
In process life cycle assessment, process data is used to compile the life cycle inventory of a product.
The data applied in process life cycle assessment may be collected directly from life cycle inventory databases or other data sources.
iii) In hybrid life cycle assessment, a combination of process, sectoral input-output and environmental account data is used.
Similarly, the data generated shows that if we use any of the recent assessment methods suggested by different authors, the EE used for constructing load bearing masonry buildings using innovative materials and techniques is less as compared to conventional construction methods.
[13] Pullen, S.F., Data quality of embodied energy methods, proceedings of the seminar on Embodied Energy: Deakin University, Geelong, Australia, 1996, p. 39–49
The data applied in process life cycle assessment may be collected directly from life cycle inventory databases or other data sources.
iii) In hybrid life cycle assessment, a combination of process, sectoral input-output and environmental account data is used.
Similarly, the data generated shows that if we use any of the recent assessment methods suggested by different authors, the EE used for constructing load bearing masonry buildings using innovative materials and techniques is less as compared to conventional construction methods.
[13] Pullen, S.F., Data quality of embodied energy methods, proceedings of the seminar on Embodied Energy: Deakin University, Geelong, Australia, 1996, p. 39–49
Online since: March 2016
Authors: Shahrin Mohammad, Mohd Syahrul Hisyam Mohd Sani, Fadhluhartini Muftah, Ahmad Rasidi Osman, Mohd Azran Razlan
One measure to analyse the strength of the CFS structure under high temperature is through the Finite Element Method (FEM) and a prediction data that is close to the actual material properties at the elevated temperatures are needed, consequently, the material properties of the CFS Grade G450 with the thickness of 1.90 mm were tested.
The values of reduction factor are tabulated in Table 2.
For this purpose, the reduction factor and stress-strain model produced by [5] and [7] were considered.
Comparison of the proposed reduction factor by previous research and recommended by [8] Table 2.
The reduction factors were almost similar for all previous studies and EC3-1.2 for elastic modulus.
The values of reduction factor are tabulated in Table 2.
For this purpose, the reduction factor and stress-strain model produced by [5] and [7] were considered.
Comparison of the proposed reduction factor by previous research and recommended by [8] Table 2.
The reduction factors were almost similar for all previous studies and EC3-1.2 for elastic modulus.
Online since: March 2008
Authors: Wilfried Lerch, Susanne Ohsiek, Jürgen Niess, Martin Trentzsch, Christian Golz, Karsten Wieczorek, Rolf Stephan, Tilo Mantei, Boris Bayha, Michael Raab, Zsolt Nényei, Waltraud Dietl, Christoph Kirchner, Georg Roters
(a) (b)
Figure 2: Experimental data based on 65nm Technology.
The experimental data confirms that the N% target range and the required difference in TGD were met (Fig. 9).
(a) (b) Figure 14: Gate Leakage in dependency of CET for (a) NFET and (b) PFET To analyze the VTH , the data was separated into two groups.
The data exhibits no impact from replacing NH3 by ND3 or D2.
Transistor Reliability After the comprehensive analysis of the electrical transistor data, this section will focus on the transistor reliability.
The experimental data confirms that the N% target range and the required difference in TGD were met (Fig. 9).
(a) (b) Figure 14: Gate Leakage in dependency of CET for (a) NFET and (b) PFET To analyze the VTH , the data was separated into two groups.
The data exhibits no impact from replacing NH3 by ND3 or D2.
Transistor Reliability After the comprehensive analysis of the electrical transistor data, this section will focus on the transistor reliability.
Online since: October 2010
Authors: Philippe Miele, Ouardia Akdim, Umit Bilge Demirci
All of these reactivity data are reported and briefly discussed hereafter.
However, the dispersion of CoCl2 over SiC is detrimental to the reactivity of the catalyst formed by the reduction of Co2+ as the hydrogen generation rate is clearly decreased.
Hence, from the data reported in Figure 2, it is evident that the specific surface area has no effect on the catalyst reactivity when different types of catalysts are compared.
On the basis of reactivity data, the present study has showed that it is possible to have highly reactive CoCl2-Al2O3 catalysts, which are more reactive than catalysts prepared with supports with higher specific surface areas.
Oxides, such as Al2O3, have showed to be materials of choice as they provide a surface acidity that contributes to accelerate the Co2+ reduction and the hydrogen generation.
However, the dispersion of CoCl2 over SiC is detrimental to the reactivity of the catalyst formed by the reduction of Co2+ as the hydrogen generation rate is clearly decreased.
Hence, from the data reported in Figure 2, it is evident that the specific surface area has no effect on the catalyst reactivity when different types of catalysts are compared.
On the basis of reactivity data, the present study has showed that it is possible to have highly reactive CoCl2-Al2O3 catalysts, which are more reactive than catalysts prepared with supports with higher specific surface areas.
Oxides, such as Al2O3, have showed to be materials of choice as they provide a surface acidity that contributes to accelerate the Co2+ reduction and the hydrogen generation.