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Online since: November 2005
Authors: Maria do Carmo de Andrade Nono, Sergio Luiz Mineiro, Carlos Kuranaga, M.D. Silva
All samples were characterized by X-ray diffraction data on a Philips model PW 1830/80
diffractometer using Cu-Kα radiation.
The decrease of the specific surface area of the ceramics with an increase of the sintering temperature occurred because of the pore size reduction and the closure of the superficial pores.
The highest pore volume measured belongs to ceramic sintered at 1000o C, with a distribution of mesopores (0.01-0.03µm) and macropores (0.4-0.9µm). 1000 1050 1100 1150 1200 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Specific surface area (m 2 /g) Temperature (ºC) Figure 2 Specific surface area for the ZnO-TiO2-Ta2O5 sintered ceramics measured by BET nitrogen adsorption. 0,01 0,1 1 0 10 20 30 40 50 Dv(r)x10.000 (cm 3 /µµµµm x g) Pore Radii (µµµµm) 1000ºC 1100ºC 1200ºC Figure 3 Pore size distribution curves of the sintered ceramics calculated from the mercury porosimetry data.
The data obtained for the sample sintered at 1100o C certainly possesses some experimental errors, because both capacitance and impedance measures invert its behavior starting from 43% of relative humidity, being in disagreement with the expected results.
The decrease of the specific surface area of the ceramics with an increase of the sintering temperature occurred because of the pore size reduction and the closure of the superficial pores.
The highest pore volume measured belongs to ceramic sintered at 1000o C, with a distribution of mesopores (0.01-0.03µm) and macropores (0.4-0.9µm). 1000 1050 1100 1150 1200 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 Specific surface area (m 2 /g) Temperature (ºC) Figure 2 Specific surface area for the ZnO-TiO2-Ta2O5 sintered ceramics measured by BET nitrogen adsorption. 0,01 0,1 1 0 10 20 30 40 50 Dv(r)x10.000 (cm 3 /µµµµm x g) Pore Radii (µµµµm) 1000ºC 1100ºC 1200ºC Figure 3 Pore size distribution curves of the sintered ceramics calculated from the mercury porosimetry data.
The data obtained for the sample sintered at 1100o C certainly possesses some experimental errors, because both capacitance and impedance measures invert its behavior starting from 43% of relative humidity, being in disagreement with the expected results.
Online since: August 2013
Authors: Zai Ke Tian, Suo Chang Yang, De Long Feng, Yun Zhi Yao
Perturbation guidance system design
How to take advantage of the flight trajectory data measured by GPS guidance to predict the no control impact point is the most important issue.
The range deviation solver method is essentially data summarized, to establish the range of deviation model accuracy depends on the sub-sample representativeness.
Regression calculation these data can be obtained by the approximate equation residual range forecast.
[3] Jitpraphai,T., and Costello,M., “Dispersion Reduction of a Direct Fire Rocket Using Lateral Pulse Jets”, Journal of Spacecraft and Rockets, Vol.38, No.6, 2001, pp.929-936
The range deviation solver method is essentially data summarized, to establish the range of deviation model accuracy depends on the sub-sample representativeness.
Regression calculation these data can be obtained by the approximate equation residual range forecast.
[3] Jitpraphai,T., and Costello,M., “Dispersion Reduction of a Direct Fire Rocket Using Lateral Pulse Jets”, Journal of Spacecraft and Rockets, Vol.38, No.6, 2001, pp.929-936
Online since: July 2013
Authors: Ibram Ganesh
The Arrhenius plots plotted based on the data obtained from the study of effect of temperature on the rates of formation and decomposition of formic acid and formaldehyde in the temperature range 30-50°C revealed the activation energies of these reactions.
Reduction of CO2 to methanol by following chemical methods.
Guo, CO2 activation and total reduction on titanium (0001) surface, J.
Peris, A new approach to the reduction of carbon dioxide: CO2 reduction to formate by transfer hydrogenation in iPrOH, Organometallics, 29 (2010) 275-277
Utility Data Institute, 2003.
Reduction of CO2 to methanol by following chemical methods.
Guo, CO2 activation and total reduction on titanium (0001) surface, J.
Peris, A new approach to the reduction of carbon dioxide: CO2 reduction to formate by transfer hydrogenation in iPrOH, Organometallics, 29 (2010) 275-277
Utility Data Institute, 2003.
Online since: October 2006
Authors: Francisco Manuel Braz Fernandes, Gerard Vignoles, Alexandre Velhinho, L.A. Rocha, P. Cloetens, S.C. Ferreira
Cloetens4, f
1
CENIMAT - Centro de Investigação em Materiais, Faculdade de Ciências e Tecnologia,
Universidade Nova de Lisboa, Quinta da Torre, Caparica 2829-516, PORTUGAL
2
CIICS - Centro de Investigação em Interfaces e Comportamento de Superfícies, Universidade do
Minho, Campus de Azurém, Guimarães 4800-058, PORTUGAL
3
Laboratoire des Composites Thermostructuraux, Université de Bordeaux 1, Domaine
Universitaire 3, Allée la Boétie, F 33600 Pessac, FRANCE
4
ESRF - European Synchrotron Radiation Facility, Polygone Scientifique Louis Néel - 6, rue Jules
Horowitz, 38000 Grenoble, FRANCE
a
ajv@fct.unl.pt,
b
fbf@fct.unl.pt, csccf@fct.unl.pt,
d
lrocha@dem.uminho.pt,
e
vinhola@lcts.u-bordeaux1.fr, fcloetens@esrf.fr
Keywords: Computed tomography, Microtomography, Image analysis, Data processing, Metal
matrix composites, Functionally graded materials, Microstructure, Interface, Damage.
Further development and possibilities Data processing.
Figure 4 - a) Reduction of processing time achieved with parallel computing for the hysteresis operation on a 100 × 100 × 100 SiCp FGMMC tomographic dataset.
Quaresma, from CITI (Centro de Investigação em Informática e Tecnologias da Informação/UNL), for their role in the development of the data processing tools.
Further development and possibilities Data processing.
Figure 4 - a) Reduction of processing time achieved with parallel computing for the hysteresis operation on a 100 × 100 × 100 SiCp FGMMC tomographic dataset.
Quaresma, from CITI (Centro de Investigação em Informática e Tecnologias da Informação/UNL), for their role in the development of the data processing tools.
Online since: March 2007
Authors: Masaki Takata, Akitoshi Mizuno, Shinji Kohara, Seiichi Matsumura, Masahito Watanabe, J.K.R. Weber
High-energy x-ray diffraction experiments were performed to obtain reliable diffraction data for the
liquid phase of metallic glass-forming Zr-Cu binary alloys.
The data acquisition process was repeated typically three times to confirm the stability of the intensity profile obtained.
The total structure factor, S(Q), was extracted by normalizing the corrected coherent intensity data.
The RMC method has been shown to be a useful tool to construct a three-dimensional structural model of disordered materials using mainly experimental diffraction data [17].
The data of the constituent elements near their melting point were taken from the literature for a comparison [20].
The data acquisition process was repeated typically three times to confirm the stability of the intensity profile obtained.
The total structure factor, S(Q), was extracted by normalizing the corrected coherent intensity data.
The RMC method has been shown to be a useful tool to construct a three-dimensional structural model of disordered materials using mainly experimental diffraction data [17].
The data of the constituent elements near their melting point were taken from the literature for a comparison [20].
Online since: May 2012
Authors: Siddarth G. Sundaresan, Ranbir Singh, Eric Lieser, Charles Sturdevant, Madhuri Marripelly
Data on the current sharing capability of the PiN rectifiers is also presented.
A negative differential co-efficient of on-state voltage drop is also observed from Figure 2(b), which is due to the reduction of knee voltage at higher temperatures.
A negative differential co-efficient of on-state voltage drop is also observed from Figure 2(b), which is due to the reduction of knee voltage at higher temperatures.
Online since: October 2015
Authors: Jirasak Tharajak, Duongruitai Nicomrat, Pattarica Soongsombat
These overall data will be essential information for the development of antimicrobial films and coatings in food packaging with the extending shelf life.
However, higher temperature under heating process during plasticization is sometimes required but is not a good choice since it may cause serious detrimental effects on a shelf life of chitosan as well as possible reduction in antimicrobial activity [1].
However, higher temperature under heating process during plasticization is sometimes required but is not a good choice since it may cause serious detrimental effects on a shelf life of chitosan as well as possible reduction in antimicrobial activity [1].
Online since: June 2025
Authors: Yechale Alemu, Addisu Mengesha Tadege, Wondiferaw Asmare Alemu
To achieve accurate forecasting, the study utilizes data from newly connected domestic customers and their corresponding sanctioned loads from service centers in Bahir Dar (Bahirdar1 and Bahirdar2), Adet, Anbesamie, and Merawi.
2.2 Dataset Preparation
Data collection began in May 2019, coinciding with EEU’s transition from a manual billing system to an Enterprise Resource Planning (ERP) system, ensuring data accuracy and reliability.
The data collected is below in Table 1.
Using this data, it regulates an oscillator to produce an output signal that remains synchronized with the reference signal[15].
Monthly diesel consumption data from the EEU Bahir Dar District reveals an annual operating cost of 571,663.35 ETB for the generators.
Taylor, “Assessment of Typical Meteorological Year Data in Photovoltaic Geographical Information System 5.2, Based on Reanalysis and Ground Station Data from 147 European Weather Stations,” Atmosphere (Basel), vol. 14, no. 12, Dec. 2023, doi: 10.3390/atmos14121803
The data collected is below in Table 1.
Using this data, it regulates an oscillator to produce an output signal that remains synchronized with the reference signal[15].
Monthly diesel consumption data from the EEU Bahir Dar District reveals an annual operating cost of 571,663.35 ETB for the generators.
Taylor, “Assessment of Typical Meteorological Year Data in Photovoltaic Geographical Information System 5.2, Based on Reanalysis and Ground Station Data from 147 European Weather Stations,” Atmosphere (Basel), vol. 14, no. 12, Dec. 2023, doi: 10.3390/atmos14121803
Online since: January 2012
Authors: Jing Min Gao, Jiu He Wang, Yang Gao
The acceleration data of the activities with the characteristic quantity SVM and SMA was analyzed.
In recent years, with the development of social economy, the change of the living way, the miniaturization of family structure, and the miniaturization of floating population, the reduction of children, Separate tendency of generation live, the growth of life, the empty nester rate of old family is continually increase.
In the traditional detection method by using the threshold, due to the acceleration data of run and jump changes faster, with whose amplitude are larger, the division of the two activities and fall is very difficult.
In recent years, with the development of social economy, the change of the living way, the miniaturization of family structure, and the miniaturization of floating population, the reduction of children, Separate tendency of generation live, the growth of life, the empty nester rate of old family is continually increase.
In the traditional detection method by using the threshold, due to the acceleration data of run and jump changes faster, with whose amplitude are larger, the division of the two activities and fall is very difficult.
Online since: August 2013
Authors: Md. Iqbal Mahmud, Haeng Muk Cho
This research paper highlights the flow of air from crankcase port with correspondence with amount of variable supply of current to obtain the experimental test data which is important to maintain the vehicle temperature inside the compartment for passengers comfort.
Reduction of Pc pressure makes the swash plate angle maximum (as Pd to Pc closed).
For obtaining suitable data all the strokes need to set within the value limits.
Reduction of Pc pressure makes the swash plate angle maximum (as Pd to Pc closed).
For obtaining suitable data all the strokes need to set within the value limits.