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Online since: August 2013
Authors: Jia Hai Yuan, Wen Jie Huang, Zhi Zhao
The results show that between 2009 and 2020, the potential for electricity savings will reach about 1228.5TWh, and the potential reduction in carbon dioxide (CO2) emissions will be about 1020.5 million tons.
The predicted data and parameters are all obtained or calculated from the “International Energy Outlook 2009”.
Moreover, according to the planning data of energy efficiency measures in California, we calibrate the data of EPPs for the study.
Contrast of effect in 2030 Contrast of the planning value Power generation Installed capacity Total investment CO2 emissions Unit TWh GW hundred million U.S. dollars million tons Predicted value 5153 1201 4961 2702 IRSP planning value 4472 1070 4367 2430 Reduction 681 131 594 272 Note: The predicted values are obtained from the International Energy Outlook 2009.
Whatever, the case study for power planning in the U.S. is still a single-objective planning due to lack of enough data.
The predicted data and parameters are all obtained or calculated from the “International Energy Outlook 2009”.
Moreover, according to the planning data of energy efficiency measures in California, we calibrate the data of EPPs for the study.
Contrast of effect in 2030 Contrast of the planning value Power generation Installed capacity Total investment CO2 emissions Unit TWh GW hundred million U.S. dollars million tons Predicted value 5153 1201 4961 2702 IRSP planning value 4472 1070 4367 2430 Reduction 681 131 594 272 Note: The predicted values are obtained from the International Energy Outlook 2009.
Whatever, the case study for power planning in the U.S. is still a single-objective planning due to lack of enough data.
Online since: September 2013
Authors: Ye Fu Zhu, Hong Xiang Xiao
Perception module in Figure1 is collecting current intersection traffic information, traffic signal control common sense traffic rules, the intersection and adjacent intersection-related information (such as road length, number of lanes, lane type, and saturated flow, etc.).This module provides basic data for controller, and provides a basis for decision-making module for decision making.
Communication module is responsible for the Agent model internal module data interaction, knowledge base data update, and communicate with adjacent junction’s Agent, and receive adjacent intersection traffic information to realize roads or regional coordination control of multi-junction[3].
Fuzzy controller receive the data from traffic flow detector Agent and is based on fuzzy control rules of rule base for determining the current green phase of the green light delay time.
Such cases, fuzzy control has many advantages; With intersection traffic flow in the case of middle peak traffic flow, fuzzy control method is 17.91 seconds per vehicle; Traditional method is 47.04 seconds per vehicle; reduction is 61.89%.
Such cases, fuzzy control has many advantages; With intersection traffic flow in the case of high peak traffic flow, fuzzy control method is 269.72 seconds per vehicle; Traditional method is 280.67 seconds per vehicle; reduction is 3.90%.
Communication module is responsible for the Agent model internal module data interaction, knowledge base data update, and communicate with adjacent junction’s Agent, and receive adjacent intersection traffic information to realize roads or regional coordination control of multi-junction[3].
Fuzzy controller receive the data from traffic flow detector Agent and is based on fuzzy control rules of rule base for determining the current green phase of the green light delay time.
Such cases, fuzzy control has many advantages; With intersection traffic flow in the case of middle peak traffic flow, fuzzy control method is 17.91 seconds per vehicle; Traditional method is 47.04 seconds per vehicle; reduction is 61.89%.
Such cases, fuzzy control has many advantages; With intersection traffic flow in the case of high peak traffic flow, fuzzy control method is 269.72 seconds per vehicle; Traditional method is 280.67 seconds per vehicle; reduction is 3.90%.
Online since: March 2015
Authors: Fu Yun Zhu, Xing Xing Wang, Zhi Hui Lu, Hong Jun Ni, Shuai Shuai Lv
The result show that: surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge; surface processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, compared with traditional technology, the average start voltage of corona increased 23.8%, the average value of partial discharge dropped 27.7%.
Integrated test data, for the withstand voltage level of samples, with and without semi-conductive layer lead to some differences, sample C increased 23.8% compared with sample A, and sample B increased 3.0% compared with sample A.
For partial discharge of samples, it can be seen from the above that surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge, because that the outer shield using the metal mesh ring, which cannot ensure the uniformity and adhesion of semi-conductive material; surfaces processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, the average value of corona partial discharge dropped 27.7%, compared with traditional technology.
The results show that: surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge; surfaces processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, the average corona start voltage increased 23.8%, the average value of corona partial discharge dropped 27.7%, compared with traditional technology.
Integrated test data, for the withstand voltage level of samples, with and without semi-conductive layer lead to some differences, sample C increased 23.8% compared with sample A, and sample B increased 3.0% compared with sample A.
For partial discharge of samples, it can be seen from the above that surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge, because that the outer shield using the metal mesh ring, which cannot ensure the uniformity and adhesion of semi-conductive material; surfaces processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, the average value of corona partial discharge dropped 27.7%, compared with traditional technology.
The results show that: surfaces processed by the way that the inner (aluminum cylinder) and the outer (metal mesh ring) shielding components were coated with a semi-conductive material, made little sense to improve the withstand voltage level and reduce the partial discharge; surfaces processed by the way that inner shield component (aluminum cylinder) was coated with semi-conductive material, the outer shield component (metal mesh ring) was not coated with semi-conductive material, was obviously influenced the improvement of the withstand voltage level and reduction of the partial discharge, the average corona start voltage increased 23.8%, the average value of corona partial discharge dropped 27.7%, compared with traditional technology.
Online since: August 2006
Authors: Ján Dusza, Miroslav Hnatko, Monika Kašiarová, J. Kovalčík, Pavol Šajgalík, Zoltán Lenčéš, Vladimír Šída
Silicon nitride - silicon carbide nanocomposite has been prepared by an in-situ
method that utilizes formation of SiC nanograins by C+ SiO2 carbothermal reduction during
the sintering process.
SiC nanograins were formed by the crabothermal reduction of SiO2 by carbon black during hot-pressing.
Analyses of the diffraction patterns were performed by comparison with the data listed in the library of the reference spectra of the Joint Committee on Powder Diffraction Standards.
Lifetime of the cutting insert machined from the C/SiO2 derived nanocomposite C2B. 1350 °C 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 1E-10 1E-9 1E-8 1E-7 creep rate, [s-1 ] 104 /T, [K-1 ] Conclusions SiC/Si3N4 nanocomposite processed by an inexpensive in-situ method utilizing carbothermal reduction of C+ SiO2 during sintering exhibits almost defect free, very fine microstructures with inter- and intra- granulary located SiC nanoparticles.
SiC nanograins were formed by the crabothermal reduction of SiO2 by carbon black during hot-pressing.
Analyses of the diffraction patterns were performed by comparison with the data listed in the library of the reference spectra of the Joint Committee on Powder Diffraction Standards.
Lifetime of the cutting insert machined from the C/SiO2 derived nanocomposite C2B. 1350 °C 5.6 5.8 6.0 6.2 6.4 6.6 6.8 7.0 1E-10 1E-9 1E-8 1E-7 creep rate, [s-1 ] 104 /T, [K-1 ] Conclusions SiC/Si3N4 nanocomposite processed by an inexpensive in-situ method utilizing carbothermal reduction of C+ SiO2 during sintering exhibits almost defect free, very fine microstructures with inter- and intra- granulary located SiC nanoparticles.
Online since: August 2012
Authors: Alfeu Saraiva Ramos, Erika Coaglia Trindade Ramos, Ana Clara Ferraretto
The Powdercell computer program [11] and Pearson's Crystal Data [12] were used for indexing and refinement of the crystalline phases formed in mechanically alloyed Ni-Nb, Ni-Ta and Ni-Nb-Ta powders.
With increasing milling times, it was noted a widening and intensity reduction of the Ni, Nb and/orTa peaks indicating a loss of crystallinity of the powders (see Fig. 1).
However, the intensity reduction of Ni peaks was more pronounced than the Nb and/or Ta peaks during the initial milling times (up to 3 hours), which occurred probably due to two different reasons: (i) a significant reduction of crystallite and particle sizes, and (ii) the preferential dissolution of nickel atoms into the Nb and Ta lattices to form extended solid solutions, which contributed to increase the relative intensity of the NbSS (ss-solid solution)/TaSS and NiSS peaks.
A reduction of the crystallite size in both the Ni and Nb/Ta phases with the increasing milling time can be observed.
Cenzual: in Pearson's Crystal Data: Crystal Structure Database for Inorganic Compounds, ASM International, Materials Park, Ohio, USA, (2011)
With increasing milling times, it was noted a widening and intensity reduction of the Ni, Nb and/orTa peaks indicating a loss of crystallinity of the powders (see Fig. 1).
However, the intensity reduction of Ni peaks was more pronounced than the Nb and/or Ta peaks during the initial milling times (up to 3 hours), which occurred probably due to two different reasons: (i) a significant reduction of crystallite and particle sizes, and (ii) the preferential dissolution of nickel atoms into the Nb and Ta lattices to form extended solid solutions, which contributed to increase the relative intensity of the NbSS (ss-solid solution)/TaSS and NiSS peaks.
A reduction of the crystallite size in both the Ni and Nb/Ta phases with the increasing milling time can be observed.
Cenzual: in Pearson's Crystal Data: Crystal Structure Database for Inorganic Compounds, ASM International, Materials Park, Ohio, USA, (2011)
Online since: April 2016
Authors: Zbigniew Kneba
The method of measuring vibration caused by knock block requires the development of good filters for the development of measurement data.
Average mileage fuel consumption on 3 routes The data collected made it possible to estimate the reduction in travel costs by using two fuels.
On Road 1 reduction was 7.7% and 2 from 14.6% in relation to the cost of using only DO - Road 3.
Emissions of toxic components of exhaust gases at power DO and DO and LPG There has been a significant reduction in favorable nitrogen oxide emissions.
The percentage increases, however, are much smaller than the reduction in emissions of oxides of nitrogen.
Average mileage fuel consumption on 3 routes The data collected made it possible to estimate the reduction in travel costs by using two fuels.
On Road 1 reduction was 7.7% and 2 from 14.6% in relation to the cost of using only DO - Road 3.
Emissions of toxic components of exhaust gases at power DO and DO and LPG There has been a significant reduction in favorable nitrogen oxide emissions.
The percentage increases, however, are much smaller than the reduction in emissions of oxides of nitrogen.
Online since: October 2010
Authors: Tian Qi Yang
The inform forwarded by the State Council form the
Development and Reform Commission and other departments On August 2, 2007, requires to carry
out energy-efficient scheduling, and to achieve energy saving, emission reduction, and the reduction
of energy consumption and pollutant emissions.
Emission objective function With the increasing load demand, fuel consumption is gradually rising, and leads to high SOX and NOX emissions .while the emission reduction is one of the main objectives of the dispatch, the minimization of emissions is necessary to be a separate objective function which can be modeled as: 2 1 1 ( ) ( ) exp( ) N N T i i i i i i i i i i i i E E P P P f p α β γ ε = = = = + + + ∑ ∑ (9) Whereαi ,βi,γi ,εi and if are the emission coefficients of the generator i.
A large number of emission data should be collected through the surveillance and detection of various types of units.
To simplify the data processing, the emission control cost factor ($ / ton) g is used to make up the function and can be got as follows: 1) Calculate gi max max ( ) ( ) i i i i i F P g E P = (10) Where Fi (Pi max) is the cost of generator i at its maximum output; Ei (Pi max) is the NOX emission of generator i at its maximum output. 2) Arrange gi in ascending order 3) Add maximunm capacity of each unit at a time,starting from the smallest unit, until the load demand is satisfyed.
The typical energy-efficient scheduling focuses on the reduction of energy consumption.
Emission objective function With the increasing load demand, fuel consumption is gradually rising, and leads to high SOX and NOX emissions .while the emission reduction is one of the main objectives of the dispatch, the minimization of emissions is necessary to be a separate objective function which can be modeled as: 2 1 1 ( ) ( ) exp( ) N N T i i i i i i i i i i i i E E P P P f p α β γ ε = = = = + + + ∑ ∑ (9) Whereαi ,βi,γi ,εi and if are the emission coefficients of the generator i.
A large number of emission data should be collected through the surveillance and detection of various types of units.
To simplify the data processing, the emission control cost factor ($ / ton) g is used to make up the function and can be got as follows: 1) Calculate gi max max ( ) ( ) i i i i i F P g E P = (10) Where Fi (Pi max) is the cost of generator i at its maximum output; Ei (Pi max) is the NOX emission of generator i at its maximum output. 2) Arrange gi in ascending order 3) Add maximunm capacity of each unit at a time,starting from the smallest unit, until the load demand is satisfyed.
The typical energy-efficient scheduling focuses on the reduction of energy consumption.
Online since: August 2013
Authors: Jerzy Merkisz, Pawel Fuc, Piotr Lijewski, Andrzej Ziolkowski
The reason for the application of this solution is the reduction of the fuel consumption and exhaust emissions.
The modification of the materials and geometry ensured a reduction of noise in the starting phase and an increased power output, which reduces time needed for the engine start.
It is possible to add data sent directly from the vehicle diagnostic system to the central unit of the analyzer and use the GPS signal.
Based on the data recorded from the OBD system of the vehicles the operating time share characteristics of the vehicle engines were made depending on the engine speed and torque (Fig. 5).
For vehicle B a reduction drop has been recorded of: · the emission of CO2 by 10%, · the emission of NOx by 7%, · the emission of CO by 8%, · the emission of THC by 15%, · gas mileage by 11%.
The modification of the materials and geometry ensured a reduction of noise in the starting phase and an increased power output, which reduces time needed for the engine start.
It is possible to add data sent directly from the vehicle diagnostic system to the central unit of the analyzer and use the GPS signal.
Based on the data recorded from the OBD system of the vehicles the operating time share characteristics of the vehicle engines were made depending on the engine speed and torque (Fig. 5).
For vehicle B a reduction drop has been recorded of: · the emission of CO2 by 10%, · the emission of NOx by 7%, · the emission of CO by 8%, · the emission of THC by 15%, · gas mileage by 11%.
Online since: February 2015
Authors: Kei Sasaki, Kenji Takeno, Hidenori Shinkawa, Ken Sasaki, Nachiketa Das
Reduction of mass is the single biggest advantage of this treatment, as this does not require storage facility, where as large storage facility is required for removal of radioactivity by zeorite and other chemical treatments1, 2).
After 3 days, radioactivity in the first batch decreased from 14.35 μSv/h to 2.60 μSv/h (apparently 81.9% reduction).
By changing new fresh SSI beads after 9 days, a slight reduction in radioactivity was observed in the suspended solid.
These data, however, were obtained in practical treatments conducted in outdoor.
After removal of radioactivity by SSI strain, vegetables cultivated show quite a low level of radioactivity compared with non treated soil or zeolite treated soil despite presence of radioactivity in the soil (30-40% level)(data are under publication).
After 3 days, radioactivity in the first batch decreased from 14.35 μSv/h to 2.60 μSv/h (apparently 81.9% reduction).
By changing new fresh SSI beads after 9 days, a slight reduction in radioactivity was observed in the suspended solid.
These data, however, were obtained in practical treatments conducted in outdoor.
After removal of radioactivity by SSI strain, vegetables cultivated show quite a low level of radioactivity compared with non treated soil or zeolite treated soil despite presence of radioactivity in the soil (30-40% level)(data are under publication).
Online since: May 2012
Authors: Peder Bergman, Olof Kordina, E.Ö. Sveinbjörnsson, Anders Hallén, Jawad Hassan, I.D. Booker
Apart from extended defects and surface/interface recombination, deep levels in the epitaxial material also lead to involuntary lifetime reduction.
Controlled reduction by irradiation [1] has been demonstrated, as well as improvement by long oxidations [2,3] and high-temperature anneals after implantation with carbon 12C [4].
Data points in the graphs represent the mean of 49 (for implanted or oxidized) and 9 (as-grown) measurements taken in a ~1.5x2 mm2 area, along with their standard deviations.
Lines are a fit to the data points by a power law of the form y = AxB (O1150: B = 0.888.
Kimoto, Reduction of Deep Levels and Improvement of Carrier Lifetime in n-Type 4H-SiC by Thermal Oxidation, Appl.
Controlled reduction by irradiation [1] has been demonstrated, as well as improvement by long oxidations [2,3] and high-temperature anneals after implantation with carbon 12C [4].
Data points in the graphs represent the mean of 49 (for implanted or oxidized) and 9 (as-grown) measurements taken in a ~1.5x2 mm2 area, along with their standard deviations.
Lines are a fit to the data points by a power law of the form y = AxB (O1150: B = 0.888.
Kimoto, Reduction of Deep Levels and Improvement of Carrier Lifetime in n-Type 4H-SiC by Thermal Oxidation, Appl.