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Online since: November 2012
Authors: P.M.G. Nambissan, C. Chakrabarty, M. Pal, OINDRILA MONDAL
The sensitivity of positron annihilation techniques to structural inversions taking place due to grain size reduction had been demonstrated in our previous studies [3, 4].
The crystallite diameters dc were estimated from the X-ray diffraction data using the Debye-Scherrer equation connecting them with the grazing angles q and the wavelength l of Cu(Ka) radiation used. β in eq. (1) below refers to the full width at half maximum of the concerned peak
This implies that the samples have already undergone one stage of spinel inversion due to reduction to the nanometre particle sizes.
The crystallite diameters dc were estimated from the X-ray diffraction data using the Debye-Scherrer equation connecting them with the grazing angles q and the wavelength l of Cu(Ka) radiation used. β in eq. (1) below refers to the full width at half maximum of the concerned peak
This implies that the samples have already undergone one stage of spinel inversion due to reduction to the nanometre particle sizes.
Online since: June 2014
Authors: Claudinei Rezende Calado, Patricia Ferreira Santos, Sidney Nicodemos da Silva, I.P. Pinheiro
The objective of the present work is to characterise the waste from the porcelanato polishing process, reduce the associated disposal problems and use the waste within a company’s own ceramic industrial processes, resulting in the reduction of raw material costs.
These results agree with those observed for the density; the reduction in the density values is associated with the increased porosity of the samples.
The linear retraction data obtained for the diameter and height dimensions of the samples in relation to the residue content of the sintered samples are shown in Fig. 6.
These results agree with those observed for the density; the reduction in the density values is associated with the increased porosity of the samples.
The linear retraction data obtained for the diameter and height dimensions of the samples in relation to the residue content of the sintered samples are shown in Fig. 6.
Online since: July 2015
Authors: Chin Ming Er, Hazel Monica Matias-Peralta, Ivor Tan Kian Joo, Umi K. Parjo, Paran Gani, Norshuhaila Mohamed Sunar, Quin Emparan, Ab Aziz Abdul Latiff
All those data obtained are higher than the allowable limits by the Standard guidelines A and B (2000).
Other than that, TC also show a good reduction for both concentration of wastewater.
Those were quite a significant reduction for all the parameters except for TN.
Other than that, TC also show a good reduction for both concentration of wastewater.
Those were quite a significant reduction for all the parameters except for TN.
Online since: December 2014
Authors: Shun Kang, Wei Zuo, Xiao Ming Chen
The slip zone is calculated as a result of the data transfer, thus ensuring that there will be a favorable slip zone density on both sides of the mesh, as shown in fig 2.
This can ensure a corresponding reduction in the overall number of grid meshes for each blade in each section, with a total number of grids of 3,530,000.
Conclusions In this paper, the establishment of FlowVision numerical simulation on aerodynamic performance of wind turbine yaw effect based on the unsteady CFD, can be summarized as follows: 1) leaf segments and the application of the sliding grid method were used to calculate CFD in order to greatly reduce the number of grids and save computing resources; 2) in the axis, direction flow conditions, the numerical method can simulate the aerodynamic characteristics; 3) in the 11m/s wind shear conditions, this reduction canmore accurately reflect pneumatic power, while with regard to the variations in wind shear conditions of pneumatic power, thrust and torque performance parameters appear periodically; 4) the wake is constantly expanding, the expansion degree of different cross sections are different.
This can ensure a corresponding reduction in the overall number of grid meshes for each blade in each section, with a total number of grids of 3,530,000.
Conclusions In this paper, the establishment of FlowVision numerical simulation on aerodynamic performance of wind turbine yaw effect based on the unsteady CFD, can be summarized as follows: 1) leaf segments and the application of the sliding grid method were used to calculate CFD in order to greatly reduce the number of grids and save computing resources; 2) in the axis, direction flow conditions, the numerical method can simulate the aerodynamic characteristics; 3) in the 11m/s wind shear conditions, this reduction canmore accurately reflect pneumatic power, while with regard to the variations in wind shear conditions of pneumatic power, thrust and torque performance parameters appear periodically; 4) the wake is constantly expanding, the expansion degree of different cross sections are different.
Online since: October 2006
Authors: S.I. Kwun, Kae Myung Kang, Jai Won Byeon
The data scatter seems to be rather large from the line
regressed using exponential decay function, although AGBC was tended to increase initially and then
saturated with thermal degradation time.
M6C carbides x100 Number of grain boundary carbides analyzed Fraction of M6C Carbides at Grain Boundary [%] Kinetic Energy [eV] Intensity [arbitrary] (a) (b) Fe Fe C Cr Mo C Mo Kinetic Energy [eV] Intensity [arbitrary] (a) (b) Fe Fe C Cr Mo C Mo Fig. 8 Correlation of total area of grain boundary carbides and fraction of grain boundary M6C carbides with tensile strength.� Fig. 5 Typical Auger electron spectrum for quantitative composition analysis of grain boundary carbide: (a) virgin and (b) 3700 hours.� � Fig. 6 Variation in fraction of M6C carbides at grain boundary as a function of thermal degradation time.� Fig. 7 Linear correlations of Rockwell hardness with mean size of globular and all types of carbides.� Fig. 7 shows linear correlations of HRB with both mean size of globular carbides (Sglobular) and mean size of all types of carbides (Stotal), suggesting that both empirical parameters can be utilized for monitoring hardness reduction
(1) In actual plants, the mean size of globular carbide can be measured by nondestructive replication technique, and then it can be empirically correlated with the hardness reduction through the Eq. (1).
M6C carbides x100 Number of grain boundary carbides analyzed Fraction of M6C Carbides at Grain Boundary [%] Kinetic Energy [eV] Intensity [arbitrary] (a) (b) Fe Fe C Cr Mo C Mo Kinetic Energy [eV] Intensity [arbitrary] (a) (b) Fe Fe C Cr Mo C Mo Fig. 8 Correlation of total area of grain boundary carbides and fraction of grain boundary M6C carbides with tensile strength.� Fig. 5 Typical Auger electron spectrum for quantitative composition analysis of grain boundary carbide: (a) virgin and (b) 3700 hours.� � Fig. 6 Variation in fraction of M6C carbides at grain boundary as a function of thermal degradation time.� Fig. 7 Linear correlations of Rockwell hardness with mean size of globular and all types of carbides.� Fig. 7 shows linear correlations of HRB with both mean size of globular carbides (Sglobular) and mean size of all types of carbides (Stotal), suggesting that both empirical parameters can be utilized for monitoring hardness reduction
(1) In actual plants, the mean size of globular carbide can be measured by nondestructive replication technique, and then it can be empirically correlated with the hardness reduction through the Eq. (1).
Online since: August 2018
Authors: Jessada Didsabong, Kunlaya Sonthonglang, Patcharaporn Somdee, Witawat Singsang, Aniwat Hasook, Natkrita Prasoetsopha
Each data point represents the average of measurements according to the ASTM standard with related standard deviation shown as error bars.
This reduction might be because of chain scission and reduction in chain entanglement.
This reduction might be because of chain scission and reduction in chain entanglement.
Online since: February 2014
Authors: Arrisa Sopajarn, Chayanoot Sangwichien
In addition, cellulosic ethanol has a better environmental profit than starch-based ethanol, with a 90% reduction in carbon emission over gasoline as compared to 29% reduction using starch-based ethanol [3].
Regression analysis was performed on the data obtained.
Regression analysis was performed on the data obtained.
Online since: May 2022
Authors: Philip Andrew Mawby, Vishal Ajit Shah, Peter Michael Gammon, Mathias Rommel, Oliver James Vavasour, A. Benjamin Renz, Fan Li, Marina Antoniou, Tian Xiang Dai, G.W.C. Baker
The displayed data is for a time window of 64.5ms, a reverse bias of -1 V, a pulse voltage of 0 V and a filling pulse duration of 10 ms.
In the conducting state of Schottky barriers, only the highly-doped V layers showed a significant reduction of current density levels to 1 x 10-5 A.cm2 at 10 V bias.
Krieger, "Reduction of implantation-induced point defects by germanium ions in n-type 4H-SiC," Materials Science Forum, vol. 821, pp. 347-350, 2015.
In the conducting state of Schottky barriers, only the highly-doped V layers showed a significant reduction of current density levels to 1 x 10-5 A.cm2 at 10 V bias.
Krieger, "Reduction of implantation-induced point defects by germanium ions in n-type 4H-SiC," Materials Science Forum, vol. 821, pp. 347-350, 2015.
Online since: March 2012
Authors: S. Naveen, Ganesh Kumar Nithyanandam
Its result is the effective organization of the workplace, reduction of work’s environment, elimination of losses connected with failures and breaks, improvement of the quality and safety of work.
A time study data of each operation was already fed into this control system.
By promoting these tools, unnecessary motion of the operator is eliminated, reduction of cycle time in the assembly operation, to name a few are achieved.
A time study data of each operation was already fed into this control system.
By promoting these tools, unnecessary motion of the operator is eliminated, reduction of cycle time in the assembly operation, to name a few are achieved.
Online since: November 2015
Authors: Cristina Feniser, Florin Lungu
The data analyzed was obtained from 10 managers of SMEs by addressing open questions related to the two concepts.
The answers were coded and four categories of activities in the field of CSR were obtained: Activities related to the environment: - Chemical emissions reduction - Using renewable energy sources - Participation in events with ecological themes - Registration in environmental organizations - Investment in new production technologies - Implementation of ISO 14001 Activities relating to company employees: - Investment in employee training - Organizing events for employees - Wage increase - Informing employees - Employing people aged over 45 years and younger without experience in the domain - Employee involvement in technological process innovation projects Activities for clients: - Ecodesign - Information programs on product life cycle - Open day - Involving customers through social networks to create new products Activities for the local community - Involvement in projects with schools - Sponsorship of sporting and cultural activities - Organizing cultural and sporting
Objectives of CSR, stakeholders involved and the type of innovation CSR activities Objectives Stakeholders Innovation - Environment - Employees - Clients - Suppliers - Cost reduction - Competitively - Employee motivation - Improvement of market position - Improvement of relation with clients - Improvement of image, of relationships with the firm's external environment - Suppliers - Organizations for environment protection - Government - Employees - Business partners - Clients - Schools - Local public institutes - Process - Product - Organizational - Marketing Conclusions We note that many activities mentioned involve changes within the organization that can be described as innovation activities, especially those related to the environment.
The answers were coded and four categories of activities in the field of CSR were obtained: Activities related to the environment: - Chemical emissions reduction - Using renewable energy sources - Participation in events with ecological themes - Registration in environmental organizations - Investment in new production technologies - Implementation of ISO 14001 Activities relating to company employees: - Investment in employee training - Organizing events for employees - Wage increase - Informing employees - Employing people aged over 45 years and younger without experience in the domain - Employee involvement in technological process innovation projects Activities for clients: - Ecodesign - Information programs on product life cycle - Open day - Involving customers through social networks to create new products Activities for the local community - Involvement in projects with schools - Sponsorship of sporting and cultural activities - Organizing cultural and sporting
Objectives of CSR, stakeholders involved and the type of innovation CSR activities Objectives Stakeholders Innovation - Environment - Employees - Clients - Suppliers - Cost reduction - Competitively - Employee motivation - Improvement of market position - Improvement of relation with clients - Improvement of image, of relationships with the firm's external environment - Suppliers - Organizations for environment protection - Government - Employees - Business partners - Clients - Schools - Local public institutes - Process - Product - Organizational - Marketing Conclusions We note that many activities mentioned involve changes within the organization that can be described as innovation activities, especially those related to the environment.