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Online since: January 2024
Authors: Ahmed Hassan, Mahmoud Haggag, Usman Masood, Mohammad Laghari
The sensors were connected to a data logger to store and retrieve the data.
Fig. 8a illustrates the computed heat released to interior space with and without using a PCM-based pre-cooling system for three consecutive days using UAE temperature data, and Fig. 8b displays the associated decrease in released heat by percentage.
The results showed that by including a PCM-based pre-cooling system, the intake air temperature has been lowered, and the total heat has been decreased from an average of 1000KW to roughly 650KW, resulting in a daily reduction of 16% and a day-time reduction of 14%.
AC cooling system capacity reduction by integrating the PCM in the pre-cooling system at a velocity rate of 4 m/s in the UAE hot condition.
The percentage reduction in heat emission as a function of velocity is shown in Fig. 12.
Fig. 8a illustrates the computed heat released to interior space with and without using a PCM-based pre-cooling system for three consecutive days using UAE temperature data, and Fig. 8b displays the associated decrease in released heat by percentage.
The results showed that by including a PCM-based pre-cooling system, the intake air temperature has been lowered, and the total heat has been decreased from an average of 1000KW to roughly 650KW, resulting in a daily reduction of 16% and a day-time reduction of 14%.
AC cooling system capacity reduction by integrating the PCM in the pre-cooling system at a velocity rate of 4 m/s in the UAE hot condition.
The percentage reduction in heat emission as a function of velocity is shown in Fig. 12.
Online since: June 2010
Authors: Miao Quan Li, Jiao Luo
And, the predicted flow stress has been compared with the
experimental data of Ti-5.6Al-4.8Sn-2.0Zr alloy.
Isothermal compressions were conducted in a Thermecmaster-Z simulator at the deformation temperatures ranging from 1173 K to 1333 K, the strain rates ranging from 0.001 s -1 to 10.0 s-1 at an interval of an order magnitude and the height reductions ranging from 50% to 70%.
Appling the constitutive model to Ti-5.6Al-4.8Sn-2.0Zr alloy, the material constants are determined from the experimental data using the GA-based objective optimization technique.
The selected experimental data are chosen as the sample data to determine the material constants for the constitutive model of Ti-5.6Al-4.8Sn-2.0Zr alloy in high temperature deformation.
Other experimental data are used to verify the constitutive model.
Isothermal compressions were conducted in a Thermecmaster-Z simulator at the deformation temperatures ranging from 1173 K to 1333 K, the strain rates ranging from 0.001 s -1 to 10.0 s-1 at an interval of an order magnitude and the height reductions ranging from 50% to 70%.
Appling the constitutive model to Ti-5.6Al-4.8Sn-2.0Zr alloy, the material constants are determined from the experimental data using the GA-based objective optimization technique.
The selected experimental data are chosen as the sample data to determine the material constants for the constitutive model of Ti-5.6Al-4.8Sn-2.0Zr alloy in high temperature deformation.
Other experimental data are used to verify the constitutive model.
Online since: April 2016
Authors: Sebastian Grosicki
There is not much data on mass/heat transfer studies with the use of electrolytic technique.
Because the electrodes are immersed in the electrolyte, the reduction process occurs at the cathode while the oxidation - at the anode.
The following electrochemical reaction (reduction process) takes place on the surface of the cathode
The experiment was carried out in order to be able to transpose later the obtained data to the phenomenon of heat transfer using the heat and mass transfer analogy.
Received data can be used in special heat exchanger with buffer layer in the form of annular gap.
Because the electrodes are immersed in the electrolyte, the reduction process occurs at the cathode while the oxidation - at the anode.
The following electrochemical reaction (reduction process) takes place on the surface of the cathode
The experiment was carried out in order to be able to transpose later the obtained data to the phenomenon of heat transfer using the heat and mass transfer analogy.
Received data can be used in special heat exchanger with buffer layer in the form of annular gap.
Online since: April 2007
Authors: Y. George, M. Gelbstein, R. Kreizman, M.P. Dariel, Z. Dashevsky, Y. Gelbstein
annealed sample of Pb0.9Sn0.1Te (curves 1&3
respectively) compared to published data [5] regarding
single crystals (curves 2&4 respectively).
The temperature dependence of Seebeck coefficient, α, and the electrical resistivity, ρ, for 24 h annealed sample of Pb0.9Sn0.1Te compared to published data [5] for single crystals at similar composition is presented in Fig. 2.
The temperature dependence of α and ρ of Pb0.5Sn0.5Te and Pb0.75Sn0.25Te annealed at 600 o C for various durations of time, along with published data [5,6] for single crystals materials prepared by powder metallurgy processing, is presented in Figs. 3,4.
Temperature dependence of Seebeck coefficient (left) and the electrical resistivity (right) for 600 o C annealed Pb0.5Sn0.5Te for (1) 30 hr., (2) 55 hr., (3) 85 hr., (4) 109 hr., (5) 133 hr., compared to published data regarding (6) single crystals [5] and (7) powder metallurgy based samples [6].
Temperature dependence of Seebeck coefficient (left) and the electrical resistivity (right) for 600o C annealed Pb0.75Sn0.25Te for (1) 30 hr., (2) 55 hr., (3) 85 hr., (4) 109 hr., (5) 133 hr., (6) 159 hr., (7) 183 hr., compared to published data regarding (8) single crystals [5].
The temperature dependence of Seebeck coefficient, α, and the electrical resistivity, ρ, for 24 h annealed sample of Pb0.9Sn0.1Te compared to published data [5] for single crystals at similar composition is presented in Fig. 2.
The temperature dependence of α and ρ of Pb0.5Sn0.5Te and Pb0.75Sn0.25Te annealed at 600 o C for various durations of time, along with published data [5,6] for single crystals materials prepared by powder metallurgy processing, is presented in Figs. 3,4.
Temperature dependence of Seebeck coefficient (left) and the electrical resistivity (right) for 600 o C annealed Pb0.5Sn0.5Te for (1) 30 hr., (2) 55 hr., (3) 85 hr., (4) 109 hr., (5) 133 hr., compared to published data regarding (6) single crystals [5] and (7) powder metallurgy based samples [6].
Temperature dependence of Seebeck coefficient (left) and the electrical resistivity (right) for 600o C annealed Pb0.75Sn0.25Te for (1) 30 hr., (2) 55 hr., (3) 85 hr., (4) 109 hr., (5) 133 hr., (6) 159 hr., (7) 183 hr., compared to published data regarding (8) single crystals [5].
Online since: October 2013
Authors: Jie Dai, Jian Min Xiong, Jin Zhi Zhou
The paper specially focuses on how to fulfill the requirements of engineering projects by properly replacing fine aggregates with crumb rubber concrete based on the experimental results and their potential application, and accumulating experiment data for future design of rubberized concrete according to specific engineering requirements.
The density reduction mainly contributed to the lower specific gravity of crumb rubber (1120kg/m3) compared to that of river sand (2610 kg/m3).
The density reduction feature could be reasonably used in a number of engineering projects, such as false facades, and interior construction [10].
It is clear that the higher the rubber content in the concrete mix, the more the compressive and flexural strength reduction.
The strength reduction could be attributed to the lower strength of rubber aggregate than surrounding cement, microcracks initiated around rubber particles upon loading because of elastic mismatch.
The density reduction mainly contributed to the lower specific gravity of crumb rubber (1120kg/m3) compared to that of river sand (2610 kg/m3).
The density reduction feature could be reasonably used in a number of engineering projects, such as false facades, and interior construction [10].
It is clear that the higher the rubber content in the concrete mix, the more the compressive and flexural strength reduction.
The strength reduction could be attributed to the lower strength of rubber aggregate than surrounding cement, microcracks initiated around rubber particles upon loading because of elastic mismatch.
Online since: February 2013
Authors: Ai Ping Tang, Rong Wang
Therefore, reduction of excess sludge is one of the biggest challenges in biological wastewater treatment.
All the fate of the nitrogen were showed in the Fig.2, the data showed that most of the nitrogen released from the ozonated sludge were escaped from the supernate in the form of nitrogen and ammonia. 10.31 1.02 109.83 121.04 Solid nitrogen Organic nitrogen Ammonia Nitrate nitrogen Other gas forms (ammonia or nitrogen) Nitrite nitrogen 3.23 Fig.2 Nitrogen balance after ozonation (Units: mg/L) Ozone oxidation enables the destruction of microorganism cells and the elution of cytoplasm compounds into the bulk solution [7].
Choi: Ozonation of wastewater sludge for reduction and recycling.
Hwang: Reduction of sludge by ozone treatment and production of carbon source for denitrification.
Weerapakkaroon: Advanced sewage treatment process with excess sludge reduction and phosphorus recovery.
All the fate of the nitrogen were showed in the Fig.2, the data showed that most of the nitrogen released from the ozonated sludge were escaped from the supernate in the form of nitrogen and ammonia. 10.31 1.02 109.83 121.04 Solid nitrogen Organic nitrogen Ammonia Nitrate nitrogen Other gas forms (ammonia or nitrogen) Nitrite nitrogen 3.23 Fig.2 Nitrogen balance after ozonation (Units: mg/L) Ozone oxidation enables the destruction of microorganism cells and the elution of cytoplasm compounds into the bulk solution [7].
Choi: Ozonation of wastewater sludge for reduction and recycling.
Hwang: Reduction of sludge by ozone treatment and production of carbon source for denitrification.
Weerapakkaroon: Advanced sewage treatment process with excess sludge reduction and phosphorus recovery.
Online since: March 2010
Authors: Shu Li Sun, Min Gang Zhang, Wen Wu He
The total elongation and reduction in
area were calculated by the hot tension.
So activation energy of P92 steel in the austenite range is calculated with the datum of 1000-1250℃.
The reduction in area is also gradually ascending.
In Fig. 5(b), the reduction in area has an inflexion point at 1150℃.
It can be observed that the reduction has little influence on the volume fraction of dynamic recrystallization.
So activation energy of P92 steel in the austenite range is calculated with the datum of 1000-1250℃.
The reduction in area is also gradually ascending.
In Fig. 5(b), the reduction in area has an inflexion point at 1150℃.
It can be observed that the reduction has little influence on the volume fraction of dynamic recrystallization.
Online since: November 2012
Authors: Edward Boroński, Aneta Hanc, Józef Deniszczyk
The results are discussed and compared with the data available.
Our optimized lattice constant of ordered Fe3Al (10.867 a.u.) differ from the experimental data by less than 0.7 % [14] and the formation energy agrees quantitatively well with the results of earlier calculations reported in [14,15].
The resulted formation energy, shown in brackets in Table 1, agree perfectly with the experimental data reported in [7].
Our results for the positron lifetime for the bulk annihilation in Fe3Al, calculated by both BN and GC method, agree perfectly with other calculations and experimental data [5,6].
The formation energy of vacancy in preferential location, calculated in the paramagnetic state, coincides perfectly with the recent experimental data.
Our optimized lattice constant of ordered Fe3Al (10.867 a.u.) differ from the experimental data by less than 0.7 % [14] and the formation energy agrees quantitatively well with the results of earlier calculations reported in [14,15].
The resulted formation energy, shown in brackets in Table 1, agree perfectly with the experimental data reported in [7].
Our results for the positron lifetime for the bulk annihilation in Fe3Al, calculated by both BN and GC method, agree perfectly with other calculations and experimental data [5,6].
The formation energy of vacancy in preferential location, calculated in the paramagnetic state, coincides perfectly with the recent experimental data.
Online since: February 2015
Authors: Xing Ze Li, Ling Zhu, Yi Hua
Inside of DSP, it uses the Harvard structure of separately storing the program and data, as well as set up the independent program bus and data bus, so it has the very high data throughput.
During DSP image processing, it can produce a large number of intermediate data.
SDRAM is set to store intermediate data of image processing.
Also it has the fast operation speed and large data throughput.
The purpose of preprocessing is to filter out noise and enhance the useful information of image data.
During DSP image processing, it can produce a large number of intermediate data.
SDRAM is set to store intermediate data of image processing.
Also it has the fast operation speed and large data throughput.
The purpose of preprocessing is to filter out noise and enhance the useful information of image data.
Online since: January 2023
Authors: Arif Setyo Nugroho, Suhartoyo Suhartoyo, Y. Yulianto Kristiawan, Karminto Karminto
Exhaust emission data retrieval is at 1500, 3000, 5000, 7000, 9000 rpm.
Changes were seen visually on the surface of the copper used for the CO and HC reduction test, the surface copper became darker in color, especially when testing using gasoline.
Each type of fuel was tested with three different catalysts, the data taken were CO and HC exhaust gas emissions.
Kristiawan;, and Thoharudin., “Reduction of CO and HC Emission on ZSM-5 Catalyst Supported on Activated Carbon in Motorcycle Fueled Gasoline-Ethanol Blends - 1196-1200.pdf,” J.
Sipangkar, “Motor vehicle exhaust carbon monoxide and hydrocarbon emission Content Reduction By Banana Peel Activated carbon.pdf,” 2020
Changes were seen visually on the surface of the copper used for the CO and HC reduction test, the surface copper became darker in color, especially when testing using gasoline.
Each type of fuel was tested with three different catalysts, the data taken were CO and HC exhaust gas emissions.
Kristiawan;, and Thoharudin., “Reduction of CO and HC Emission on ZSM-5 Catalyst Supported on Activated Carbon in Motorcycle Fueled Gasoline-Ethanol Blends - 1196-1200.pdf,” J.
Sipangkar, “Motor vehicle exhaust carbon monoxide and hydrocarbon emission Content Reduction By Banana Peel Activated carbon.pdf,” 2020