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Online since: October 2010
Authors: Vittorio Ceradini, Michele Candela, Roberta Fonti
Formal data must be interpreted according to these terms.
This last will increase on the basis of a linear law, according to which its reduction will occur only in presence of contrasting elements of masonry wall that carry the weight of dome.
It was noticed that all analyzed cases followed this simple rule, according to which: an increase or reduction of springer angle in relation to the planned organization of the structural organism and to the thinness of the structure in elevation; an increase or reduction of springer angle in relation to rise-bay relationship of the covering outline.
Vitale) According to the rule, in gothic structures or with lancet arch we should have a reduction of springer angle for the increase of the underside's form of the arch but, because of the building thinness in elevation of these monumental works, the increase of springer angle results inevitable; that becomes part of the same Pantheon's case history.
This last will increase on the basis of a linear law, according to which its reduction will occur only in presence of contrasting elements of masonry wall that carry the weight of dome.
It was noticed that all analyzed cases followed this simple rule, according to which: an increase or reduction of springer angle in relation to the planned organization of the structural organism and to the thinness of the structure in elevation; an increase or reduction of springer angle in relation to rise-bay relationship of the covering outline.
Vitale) According to the rule, in gothic structures or with lancet arch we should have a reduction of springer angle for the increase of the underside's form of the arch but, because of the building thinness in elevation of these monumental works, the increase of springer angle results inevitable; that becomes part of the same Pantheon's case history.
Online since: July 2007
Authors: Dominique H.R. Morin
It is clear that any move towards industrial sustainability (i.e. lower
consumption of energy and raw materials, and reduction or elimination of waste) affects all stages
of process technology.
The use of modelling by Artificial Neural Network has been developed on sulphate reduction, which will help predict the influence of operating parameters on the performances of the process.
The finding of micro-organisms thriving at low and high temperature, respectively 8 and 65°C, leads to hope an extension of the application range of the sulphate reduction process.
The work on the use of sulphate reduction for effluent polishing has sufficiently progressed to show that sulphate can be removed at high concentrations, as well as arsenic or selenium.
The most promising combinations process vs. resource will be investigated up to the pilot scale with the double objective of demonstrating the application of the technology and acquiring the data for a pre-feasibility evaluation.
The use of modelling by Artificial Neural Network has been developed on sulphate reduction, which will help predict the influence of operating parameters on the performances of the process.
The finding of micro-organisms thriving at low and high temperature, respectively 8 and 65°C, leads to hope an extension of the application range of the sulphate reduction process.
The work on the use of sulphate reduction for effluent polishing has sufficiently progressed to show that sulphate can be removed at high concentrations, as well as arsenic or selenium.
The most promising combinations process vs. resource will be investigated up to the pilot scale with the double objective of demonstrating the application of the technology and acquiring the data for a pre-feasibility evaluation.
Online since: April 2014
Authors: Hadria Medouer, Chahira Benyekken, Saci Messaadi
In their pioneering works, Brenner et al. [5], have proposed the first theory called direct mechanism; in which the deposition of Ni-P alloy occurs by a direct electrochemical reduction of nickel and phosphorous ionic species.
The indirect mechanism proposed by Ratzker [6] suggests that the phosphorus oxyacid reduction depends on H+ reduction with the formation of a gaseous intermediate phosphine (PH3), which reacts chemically with Ni2+ ions in the electrolyte to form Ni-P alloys.
The voltammetric response showed a reduction peak related to mass transport in negative scan and the oxidation peak in the positive scan.
The comparison between the experimental data with theoretical current transients by plotting the variations of (i-t2) shows quasi linear variations for all the used potentials.
The indirect mechanism proposed by Ratzker [6] suggests that the phosphorus oxyacid reduction depends on H+ reduction with the formation of a gaseous intermediate phosphine (PH3), which reacts chemically with Ni2+ ions in the electrolyte to form Ni-P alloys.
The voltammetric response showed a reduction peak related to mass transport in negative scan and the oxidation peak in the positive scan.
The comparison between the experimental data with theoretical current transients by plotting the variations of (i-t2) shows quasi linear variations for all the used potentials.
Online since: August 2013
Authors: Rui Zhang, Ling Xu, Yao Yu, Jun Xu, Yi Fan Jiang, Jing Chen, Wei Ning Su, Zhong Yuan Ma
Hence, finding new chalcogenide phase change material with better properties is a key point to cope with the issue of writing current reduction.
After deposition, parts of the films were annealed at 180℃ under nitrogen atmosphere for 10 minutes to make the film crystallized.The in situ exothermal and isothermal sheet resistance changes of GST and Si-GST films were measured with a high temperature probe station and the data was recorded by an Agilent 34401A.
The reduction of resistance shall be attributed to the crystallization of amorphous film since the crystalline film has a much lower resistivity than that of the amorphous film.
Both samples show a distinct resistance reduction after some time of incubation.
Moreover, it shall be noted that the resistance reduction rate of Si-GST is faster than that of GST, suggesting that Si-GST samples require a shorter time to complete the crystallization process at the same annealing temperature.
After deposition, parts of the films were annealed at 180℃ under nitrogen atmosphere for 10 minutes to make the film crystallized.The in situ exothermal and isothermal sheet resistance changes of GST and Si-GST films were measured with a high temperature probe station and the data was recorded by an Agilent 34401A.
The reduction of resistance shall be attributed to the crystallization of amorphous film since the crystalline film has a much lower resistivity than that of the amorphous film.
Both samples show a distinct resistance reduction after some time of incubation.
Moreover, it shall be noted that the resistance reduction rate of Si-GST is faster than that of GST, suggesting that Si-GST samples require a shorter time to complete the crystallization process at the same annealing temperature.
Online since: October 2014
Authors: Makoto Nanko, Masato Kato, Shun Hirooka, Hitoshi Abe
However, sintering of non-stoichiometric oxides is difficult because reduction of oxides causes volume expansion.
In some non-stoichiometric oxides such as Gd doped CeO2-x, doped LaCrO3, the oxides are fractured by stresses because of changing LP by reduction [4-5].
The first factor is formation of oxygen vacancies, Vo∙∙, by reduction of samples and the second one is thermal expansion of lattice.
By using reported data by Brauer et al. [3], LP of estimated non-stoichiometric CeO2-x at room temperature are 5.450Å and 5.545 Å, respectively.
The amount of LP change, which refers as ∆a, is regarded as strain, strains formed by reduction from room temperature to 800oC, 800 to 1300oC are 0.7% and 1.7%, respectively.
In some non-stoichiometric oxides such as Gd doped CeO2-x, doped LaCrO3, the oxides are fractured by stresses because of changing LP by reduction [4-5].
The first factor is formation of oxygen vacancies, Vo∙∙, by reduction of samples and the second one is thermal expansion of lattice.
By using reported data by Brauer et al. [3], LP of estimated non-stoichiometric CeO2-x at room temperature are 5.450Å and 5.545 Å, respectively.
The amount of LP change, which refers as ∆a, is regarded as strain, strains formed by reduction from room temperature to 800oC, 800 to 1300oC are 0.7% and 1.7%, respectively.
Online since: February 2013
Authors: Pan Miao, Xia Guo
Major energy consumption of transportation in Shandong province
The data shows that oil is the largest energy consumption of transportation in Shandong province in recent years , accounting for about 95% of the total four energy consumption, relatively speaking, other types of energy consumption is much lower.
Table 1 Main energy consumption statistics of the transportation of Shandong Province, in September 2006-2011 [million tons] 2006 2007 2008 2009 2010 Jan-Sep 2011 coal 14.29 15.71 18.57 18.57 18.57 18.57 oil 1923.1 2066.18 2388.22 2452.59 2684.2 2013.41 gas 7.49 7.47 11.27 13.09 16.11 14.69 electricity 27.1 32.68 38.38 43.67 47.82 40.97 The proportion of energy consumption of transportation in Shandong province The data shows that oil consumption of transportation accounts for about 35% of total oil consumption in Shandong province, followed by natural gas consumption, accounting for about 2.7%.Overall, the absolute amount of each energy consumption of transportation is increasing year by year, and the proportion of the total energy consumption is relatively stable.
Improve supervision of transportation energy – saving Build statistical reporting schemes on energy consumption, and regularly carry out an assessment of the situation of energy consumption; combined with quarterly economic operation, based on the improvement of the energy consumption statistics, to study the establishment of transportation energy reduction index system, monitoring system in Shandong province, study and introduce a batch of transportation energy saving standards, and complete and collate statistics timely and effectively, to provide data support for higher authorities to develop specific energy conservation policies and measures.
Energy-saving and emission reduction in transportation field in China [J] Containerization, 2011, (3):13-15.
"Eleventh Five-Year" comprehensive transportation system of Shanghai constantly improves the effectiveness of energy conservation and emission reduction significantly [J].
Table 1 Main energy consumption statistics of the transportation of Shandong Province, in September 2006-2011 [million tons] 2006 2007 2008 2009 2010 Jan-Sep 2011 coal 14.29 15.71 18.57 18.57 18.57 18.57 oil 1923.1 2066.18 2388.22 2452.59 2684.2 2013.41 gas 7.49 7.47 11.27 13.09 16.11 14.69 electricity 27.1 32.68 38.38 43.67 47.82 40.97 The proportion of energy consumption of transportation in Shandong province The data shows that oil consumption of transportation accounts for about 35% of total oil consumption in Shandong province, followed by natural gas consumption, accounting for about 2.7%.Overall, the absolute amount of each energy consumption of transportation is increasing year by year, and the proportion of the total energy consumption is relatively stable.
Improve supervision of transportation energy – saving Build statistical reporting schemes on energy consumption, and regularly carry out an assessment of the situation of energy consumption; combined with quarterly economic operation, based on the improvement of the energy consumption statistics, to study the establishment of transportation energy reduction index system, monitoring system in Shandong province, study and introduce a batch of transportation energy saving standards, and complete and collate statistics timely and effectively, to provide data support for higher authorities to develop specific energy conservation policies and measures.
Energy-saving and emission reduction in transportation field in China [J] Containerization, 2011, (3):13-15.
"Eleventh Five-Year" comprehensive transportation system of Shanghai constantly improves the effectiveness of energy conservation and emission reduction significantly [J].
Online since: October 2016
Authors: S. Nallusamy, V. Saravanan
The application of VSM and line balancing in a gear manufacturing industry brings an idea of setup time and cycle time reduction [14].
The data were collected for making current state VSM to identify the NVA activities and the opportunities for change.
Data Collection and Analysis: Data was collected with the purpose of knowing the current state of VSM in the industry, using a stop watch, and they included activities cycle times, activities setup times, number of operators and value and non-value added activities.
Reduction of about 350 seconds in cycle time and 1500 seconds in setup time was achieved through standardization.
Venkatraman, Vijaya Ramnath, Muthu Kumar and Elanchezhian, (2014), “Application of value stream mapping for reduction of cycle time in a machining process”, Procedia Material Science, Vol. 6, pp. 1187-1196 [5] S.
The data were collected for making current state VSM to identify the NVA activities and the opportunities for change.
Data Collection and Analysis: Data was collected with the purpose of knowing the current state of VSM in the industry, using a stop watch, and they included activities cycle times, activities setup times, number of operators and value and non-value added activities.
Reduction of about 350 seconds in cycle time and 1500 seconds in setup time was achieved through standardization.
Venkatraman, Vijaya Ramnath, Muthu Kumar and Elanchezhian, (2014), “Application of value stream mapping for reduction of cycle time in a machining process”, Procedia Material Science, Vol. 6, pp. 1187-1196 [5] S.
Online since: September 2024
Authors: Jairo Valões de Alencar Ramalho, Ana Maria Bersch Domingues, Honório Joaquim Fernando, Michel Kepes Rodrigues
The methodology employed was qualitative, with data obtained through systematic, documentary, and field research.
Methodology General data and definitions.
These data are provided in Table 1.
The model validation was performed based on the experimental data available in [18].
Rocha, E.D. dos Santos, Thermal performance simulations of Earth-Air Heat Exchangers for different soils of a coastal city using in-situ data, Sustain.
Methodology General data and definitions.
These data are provided in Table 1.
The model validation was performed based on the experimental data available in [18].
Rocha, E.D. dos Santos, Thermal performance simulations of Earth-Air Heat Exchangers for different soils of a coastal city using in-situ data, Sustain.
Online since: June 2014
Authors: Khaled A. Alnefaie, Nidal H. Abu-Hamdeh
Measured engine performance parameters have generally showed a slight increase in exhaust gas temperature and in brake specific fuel consumption, and a slight reduction in brake thermal efficiency.
The rate of reduction of diesel fuel is the greatest among gasoline fuels, which subsequently results in the greater price of diesel fuel than other gasoline fuels.
Experiments were performed to study biodiesel from almond oil as a substitute fuel to operate a diesel engine and the performance data were recorded.
The data gathering was made at five engine torques from 4 to 20 N.m at an increment of 4 N.m each time.
The data collected from the experimental tests included brake torque, exhaust and coolant temperatures, emissions from exhaust including carbon monoxide and nitrogen oxides.
The rate of reduction of diesel fuel is the greatest among gasoline fuels, which subsequently results in the greater price of diesel fuel than other gasoline fuels.
Experiments were performed to study biodiesel from almond oil as a substitute fuel to operate a diesel engine and the performance data were recorded.
The data gathering was made at five engine torques from 4 to 20 N.m at an increment of 4 N.m each time.
The data collected from the experimental tests included brake torque, exhaust and coolant temperatures, emissions from exhaust including carbon monoxide and nitrogen oxides.
Online since: July 2023
Authors: Maria Ulfa, Addy Rachmat, Desnelli Desnelli, Poedji Loekitowati Hariani, Muhammad Said
Analysis data.
Therefore it was not properly reduced, and the diffractogram data is shown in Table 1.
Based on the R2 value, the data were well fitted with the pseudo-second-order model.
The Experimental data fitting to Langmuir and Freundlich model can be seen in the Figure 10.
Based on the R2 value, the data were well fitted with the pseudo-second-order model.
Therefore it was not properly reduced, and the diffractogram data is shown in Table 1.
Based on the R2 value, the data were well fitted with the pseudo-second-order model.
The Experimental data fitting to Langmuir and Freundlich model can be seen in the Figure 10.
Based on the R2 value, the data were well fitted with the pseudo-second-order model.