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Online since: January 2021
Authors: Evgeny V. Naydenkin, Il'ya V. Ratochka, Olga Lykova, Ivan P. Mishin, Anna I. Manisheva
Also the heat-up time was reduced in proportion to the reduction in the diameter of the rod.
The reduction ratio was about 3.3 (true strain ~1.2).
In this case, the volume fraction of the α phase according to X-ray diffraction data in the center and on the periphery of the rod is about 10%, respectively (Fig. 3), whereas in the initial state this value reached 58% [3].
Phase diagrams, crystallographic and thermodynamic data, Ed. in Chief: W.
The reduction ratio was about 3.3 (true strain ~1.2).
In this case, the volume fraction of the α phase according to X-ray diffraction data in the center and on the periphery of the rod is about 10%, respectively (Fig. 3), whereas in the initial state this value reached 58% [3].
Phase diagrams, crystallographic and thermodynamic data, Ed. in Chief: W.
Online since: January 2006
Authors: Martijn Stroeven, Piet Stroeven, J. Hu
As a result, very significant portions of the PC could be replaced by RHA without
strength reduction.
Data on the effects of variations in the particle size distribution (PSD) on the compaction efficiency (and thus on strength) are more readily available on millimeter level, and can thus be employed for reference purposes.
Data on PSD for the coarse aggregate used in their experiments are approximated as much as possible and denoted as 'recycled' series in this simulation study (size range 4-16 mm).
Finally, the mixture of sand and coarse aggregate is subjected in the gravitation field during size reduction of the container to the aforementioned dynamic mixing algorithm until the ultimate volume fraction of total aggregate is 65 % for all the investigated mixtures.
Data on the effects of variations in the particle size distribution (PSD) on the compaction efficiency (and thus on strength) are more readily available on millimeter level, and can thus be employed for reference purposes.
Data on PSD for the coarse aggregate used in their experiments are approximated as much as possible and denoted as 'recycled' series in this simulation study (size range 4-16 mm).
Finally, the mixture of sand and coarse aggregate is subjected in the gravitation field during size reduction of the container to the aforementioned dynamic mixing algorithm until the ultimate volume fraction of total aggregate is 65 % for all the investigated mixtures.
Online since: February 2024
Authors: Hassane Ousseyni Ibrahim, Francois Xavier Fifatin, Arouna Oloulade, Moussa Gonda
Pseudo-code GA-BVSI for compensator placement
Inputs: Distribution system data;
The objective function
Number of generations (n)
Constraint limits
Outputs: Best population;
1 Run the BIBC load flow;
2 Identify candidate buses for capacitor placement using
BVSI;
3 Randomly generate the initial population from the group
of BVSI buses identified;
4 i←0
5 While iNetwork losses fell from 224.8949 kW in the initial case to 146.5 kW after compensation, a reduction of 34.85%.
Results for optimal placement of capacitors on a 69-bus system Items Un-compensated Compensated Fuzzy-GA [11] DE-LSF [12] PSO- LSF[13] DE-PLI [12] GA-BVSI Total losses (kW) 224.8949 156.62 151.3763 152.48 146.13 146.5 Loss reduction (%) - 30.4 32.7 32.2 35.02 34.85 Minimum voltage 0.9092 0.9369 0.9311 - 0.9327 0.9306 Maximum Current (A): 386.2727 - -
Ethical Approval (not applicable) Availability of Data and Materials The simulations were carried out with Matlab R2021a.
Results for optimal placement of capacitors on a 69-bus system Items Un-compensated Compensated Fuzzy-GA [11] DE-LSF [12] PSO- LSF[13] DE-PLI [12] GA-BVSI Total losses (kW) 224.8949 156.62 151.3763 152.48 146.13 146.5 Loss reduction (%) - 30.4 32.7 32.2 35.02 34.85 Minimum voltage 0.9092 0.9369 0.9311 - 0.9327 0.9306 Maximum Current (A): 386.2727 - -
Ethical Approval (not applicable) Availability of Data and Materials The simulations were carried out with Matlab R2021a.
Online since: January 2025
Authors: Aslam Faqeer Mohammad, Muhammad Ali Raza
The location and other required data were input in the program (Figure 3) to determine tsunami flow parameters for the prototype building.
Springer, Cham. https://doi.org/10.1007/978-3-031-16277-0_7 [3] Okutan, P. and Otay, E.: Protecting Coastal Communities from Sea Level Rise and Extreme Weather Events: An Analysis of Adaptation and Risk Reduction Measures, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-11548, https://doi.org/10.5194/egusphere-egu23-11548, 2023
International Journal of Disaster Risk Reduction, 5, 84-97. https://doi.org/10.1016/j.ijdrr.2013.07.002 [8] Ramos Santibáñez, Leonel. (2016).
Structure of the Makran subduction zone from wide-angle and reflection seismic data.
Springer, Cham. https://doi.org/10.1007/978-3-031-16277-0_7 [3] Okutan, P. and Otay, E.: Protecting Coastal Communities from Sea Level Rise and Extreme Weather Events: An Analysis of Adaptation and Risk Reduction Measures, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-11548, https://doi.org/10.5194/egusphere-egu23-11548, 2023
International Journal of Disaster Risk Reduction, 5, 84-97. https://doi.org/10.1016/j.ijdrr.2013.07.002 [8] Ramos Santibáñez, Leonel. (2016).
Structure of the Makran subduction zone from wide-angle and reflection seismic data.
Online since: June 2015
Authors: S.I. Petrushin, S.V. Gruby, R.H. Gubaidulina
As these data significantly interest designer and manufacturer of the product a special service responsible for put-back and disposal of over-aging machine is to be established at mechanical engineering enterprises.
It is the data that make it possible to precise the regularities of physical depreciation of the product, therefore, determine the economically estimated lifetime, and a planned price of the product.
It is drawn attention to the fact that reducing price of the product causes reduction of its “economically substantiated lifetime” (see the dashed line in Fig.1), that is, a cheap product is to have shorter optimal lifetime.
The maximum profit will be calculated according to (9) as follows: (10) Fig.3 Influence of the obsolescence period of the machine and the cycle time on the profit of the enterprise Formula (10) and Fig. 3 demonstrate that the maximum increment in profit of the mechanical engineering enterprise is related to the reduction of cycle time of the machine, that is, to the transition to the mass fast-changeable production.
It is the data that make it possible to precise the regularities of physical depreciation of the product, therefore, determine the economically estimated lifetime, and a planned price of the product.
It is drawn attention to the fact that reducing price of the product causes reduction of its “economically substantiated lifetime” (see the dashed line in Fig.1), that is, a cheap product is to have shorter optimal lifetime.
The maximum profit will be calculated according to (9) as follows: (10) Fig.3 Influence of the obsolescence period of the machine and the cycle time on the profit of the enterprise Formula (10) and Fig. 3 demonstrate that the maximum increment in profit of the mechanical engineering enterprise is related to the reduction of cycle time of the machine, that is, to the transition to the mass fast-changeable production.
Online since: September 2013
Authors: Jean Luc Béchade, Louise Toualbi, Sophie Bosonnet, Olivier Castelnau, Yann de Carlan
Six cold rolling passes are conducted with a cross-section reduction ratio of about 25% for each pass.
XRD data were obtained using a Bruker-D8-Discover device with Cu-Kα radiation, Polycap focusing optic and 1 mm collimator to reduce beam size, ¼ circle Eulerian cradle and a scintillator as point detector.
The standard “sin²Y method” has been used to interpret XRD data; it relies on several assumptions, i.e. homogeneous and isotropic material, linear elastic behavior, biaxial stress state for which only sxx, sxy, and syy, are non-vanishing, and vanishing residual stresses at the grain scale (so-called second order stresses).
Macroscopic and XRD determinations show the strong effect of the heat treatment (reduction of stress along axial and circumferential direction) but stresses levels are significantly different between the two techniques: this can be understood taking into account the fact that XRD brings more local residual stresses analysis.
XRD data were obtained using a Bruker-D8-Discover device with Cu-Kα radiation, Polycap focusing optic and 1 mm collimator to reduce beam size, ¼ circle Eulerian cradle and a scintillator as point detector.
The standard “sin²Y method” has been used to interpret XRD data; it relies on several assumptions, i.e. homogeneous and isotropic material, linear elastic behavior, biaxial stress state for which only sxx, sxy, and syy, are non-vanishing, and vanishing residual stresses at the grain scale (so-called second order stresses).
Macroscopic and XRD determinations show the strong effect of the heat treatment (reduction of stress along axial and circumferential direction) but stresses levels are significantly different between the two techniques: this can be understood taking into account the fact that XRD brings more local residual stresses analysis.
Online since: December 2024
Authors: Fazal Ur Rehman, Saad Saud Ali Shah, Noor Ali, Zeeshan Habib, Sana Taimoor, Nasir Mehboob
For data storage purpose magnetic materials have high demand in electronic industry [1].
V=0.866a2c (3) Theoretical X-ray density of the samples is calculated by using the XRD data with the help of following relation [12]: ρx=n MwNaV (4) Where n is the number of atoms per unit cell, Mw is the molecular weight calculated from composition, V is the volume of the unit cell and Na is Avogadro's number.
This reduction is c-axis of crystal structure also confirms that Ca+2 ions are successfully substituted in crystal structure and replaced Sr+2 ions.
An increase in calcium concentration leads to a reduction in the intensity of the main peaks and also a peak shift towards the right, indicating the formation of the nonmagnetic α-Fe2O3 phase.
V=0.866a2c (3) Theoretical X-ray density of the samples is calculated by using the XRD data with the help of following relation [12]: ρx=n MwNaV (4) Where n is the number of atoms per unit cell, Mw is the molecular weight calculated from composition, V is the volume of the unit cell and Na is Avogadro's number.
This reduction is c-axis of crystal structure also confirms that Ca+2 ions are successfully substituted in crystal structure and replaced Sr+2 ions.
An increase in calcium concentration leads to a reduction in the intensity of the main peaks and also a peak shift towards the right, indicating the formation of the nonmagnetic α-Fe2O3 phase.
Online since: January 2015
Authors: Alexander S. Gorshkov, Ekaterina Ivanova
In this case, item.5.13 SNIP 23-02 [19] admits a reduction of the rated value of the reduced thermal resistance for walls of residential and public buildings by 37 % in the accomplishment requirements “c” item.5.1.
Initial data for calculation of thermal parameters Initial data: – The construction region – the city of St.
(rus) [21] Gorshkov, A.S.: The energy efficiency in the field of construction: questions of norms and standarts and solutions for the reduction of energy consumption at buildings (2010) Magazine of Civil Engineering, No.1, рр. 9-13
Initial data for calculation of thermal parameters Initial data: – The construction region – the city of St.
(rus) [21] Gorshkov, A.S.: The energy efficiency in the field of construction: questions of norms and standarts and solutions for the reduction of energy consumption at buildings (2010) Magazine of Civil Engineering, No.1, рр. 9-13
Online since: August 2018
Authors: Fei Yang, Leandro Bolzoni, Carlos Romero Villarreal
Quantitative data from the microstructure, such as α phase content, was obtained using image analysis (IA), with the software Image-J [14].
While the reduction in strength is attributed to the coarser lamellae, the fact that the ductility is not improved may be attributed to the thicker grain-boundary α of this condition.
In the case of the two solution treatments and aging, there is a considerable increase in the yield strength with a slight reduction in ductility.
These data were used, together with the tensile results, to identify trends in the properties in regards to the phase composition (Fig. 4).
While the reduction in strength is attributed to the coarser lamellae, the fact that the ductility is not improved may be attributed to the thicker grain-boundary α of this condition.
In the case of the two solution treatments and aging, there is a considerable increase in the yield strength with a slight reduction in ductility.
These data were used, together with the tensile results, to identify trends in the properties in regards to the phase composition (Fig. 4).
Online since: July 2019
Authors: Raul Fangueiro, João F. Pereira, Eva Pinho, Diana P. Ferreira
Experimental data was obtained using FESEM (Field Emission Scanning Electron Microscopy), EDX (Energy Dispersive X-Ray Spectroscopy), ATR-FTIR (Attenuated Total Reflectance – Fourier Transform Infrared Spectroscopy) and TGA (Thermogravimetric Analysis).
2.
Field emission scanning electron microscopy (FESEM) and energy dispersive X-ray (EDX) Analysis The data were obtained using an ultra–high–resolution Field Emission Scanning Electron Microscopy (FESEM), NOVA 200 Nano SEM, FEI Company.
By comparing the 6h and 15h spectra, it is possible to conclude that a remarkable DMMP band reduction was achieved, overall – the 1454, 1238 and 1184 cm-1 bands have almost disappeared, while the intensity of the rest of the bands has been greatly reduced.
The results showed a significant reduction in DMMP related peaks’ intensity – even the total disappearance of some – which indicates that DMMP was being successfully degraded.
Field emission scanning electron microscopy (FESEM) and energy dispersive X-ray (EDX) Analysis The data were obtained using an ultra–high–resolution Field Emission Scanning Electron Microscopy (FESEM), NOVA 200 Nano SEM, FEI Company.
By comparing the 6h and 15h spectra, it is possible to conclude that a remarkable DMMP band reduction was achieved, overall – the 1454, 1238 and 1184 cm-1 bands have almost disappeared, while the intensity of the rest of the bands has been greatly reduced.
The results showed a significant reduction in DMMP related peaks’ intensity – even the total disappearance of some – which indicates that DMMP was being successfully degraded.