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Online since: January 2015
Authors: Darya Nemova, Nikolay Vatin, Ekaterina Talan, Daria Marinenko
Article’s materials are based on estimated data, different Internet resources and information taken from Media.
The necessity of reduction of expenditures on wall materials, reduction of weight of multi-storied buildings and increased requirements on advanced energy-saving properties of external walls resulted in creature of facade thermal insulation systems in the form of multilayer structures, using highly-efficient thermal insulation materials.
· Reduction of expenses on operation of buildings by virtue of efficient heat and energy preservation.
Economic calculations Benchmark data: 1.
Passive use of solar energy in double skin facades for reduction of cooling loads (2012) World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference 6, pp. 4181‒4186
The necessity of reduction of expenditures on wall materials, reduction of weight of multi-storied buildings and increased requirements on advanced energy-saving properties of external walls resulted in creature of facade thermal insulation systems in the form of multilayer structures, using highly-efficient thermal insulation materials.
· Reduction of expenses on operation of buildings by virtue of efficient heat and energy preservation.
Economic calculations Benchmark data: 1.
Passive use of solar energy in double skin facades for reduction of cooling loads (2012) World Renewable Energy Forum, WREF 2012, Including World Renewable Energy Congress XII and Colorado Renewable Energy Society (CRES) Annual Conference 6, pp. 4181‒4186
Online since: December 2012
Authors: Na Ma, Xiang Lou Gao
For enterprises, it is urgent to reduction the carbon emission.
However, these studies less to consider the problem of the supply chain carbon emissions reduction from the perspective of supply and demand game.
In this paper, we apply the marginal reduction the cost curve of China[13] data from EPPA[12], This is consistent with the reality.
Table 2 The value of m and β when the profit value of supplier and retailer are maximum m 0 0.5 1 2 β 0.4 0.5 0.55 0.6 Conclusion Finally, we get the conclusions via analyzing data and model. 1.Under the wholesale price contact, if no other constraints, supplier will shift the carbon abatement cost to retailer via the wholesale price contact ,so the profit of supplier and retailer are not influence by the carbon emission cost allocation between them. 2.
We get the optimal carbon reduction strategy for supply chain coordination via analysing model.
However, these studies less to consider the problem of the supply chain carbon emissions reduction from the perspective of supply and demand game.
In this paper, we apply the marginal reduction the cost curve of China[13] data from EPPA[12], This is consistent with the reality.
Table 2 The value of m and β when the profit value of supplier and retailer are maximum m 0 0.5 1 2 β 0.4 0.5 0.55 0.6 Conclusion Finally, we get the conclusions via analyzing data and model. 1.Under the wholesale price contact, if no other constraints, supplier will shift the carbon abatement cost to retailer via the wholesale price contact ,so the profit of supplier and retailer are not influence by the carbon emission cost allocation between them. 2.
We get the optimal carbon reduction strategy for supply chain coordination via analysing model.
Online since: December 2013
Authors: Jun Tao Wang, Jing Wei Liu, Xi Liu
Developed countries are urged to assume a substantial carbon emission reduction and to play an active role in honoring the Order of the funding and technology transfer in the REDD + action.
Thus, the REDD + mechanism is becoming an important issue in international climate change, and become an important part of the post-Kyoto international emissions reduction treaty.
The transparent problems referred that the reduction of emission could be reported, measurable, and verifiable.
We should adhere to the environment distributive justice, to implement developed countries mandatory emission reduction and developing countries voluntary mitigation action.
At the same time, developed countries should provide technologies to solve REDD + three issues such as satellite imagery, land use data, biomass data, land use change, deforestation push factors as well as socio-economic information on bio-carbon storage and establish the information system for carbon emission reference.
Thus, the REDD + mechanism is becoming an important issue in international climate change, and become an important part of the post-Kyoto international emissions reduction treaty.
The transparent problems referred that the reduction of emission could be reported, measurable, and verifiable.
We should adhere to the environment distributive justice, to implement developed countries mandatory emission reduction and developing countries voluntary mitigation action.
At the same time, developed countries should provide technologies to solve REDD + three issues such as satellite imagery, land use data, biomass data, land use change, deforestation push factors as well as socio-economic information on bio-carbon storage and establish the information system for carbon emission reference.
Online since: February 2020
Authors: Omrane Bouketir, Haddi Sebaa, Tarek Bouktir
While the second system is 12.66 kV, 100kVA with the following characteristics:
· 69 nodes and 68 branches;
· total system active load is 3801.3kW
· total active loss before installing DG systems is 224.95kW,
· minimum voltage of0.9092 at bus 65
Fig. 3 One line diagram of 33_bus system Fig. 4 One line diagram of 69_bus system
Results and Discussion
The networks data of the two systems (Fig3 and Fig 4) are the same data used in [18] and [19].
For the first case we see from Table 1 that the reduction in real losses becomes 37.05%.
For the first case we see from Table 2, that the reduction in real losses becomes 41.69% and the voltage deviation with respect to base case without DG is 0.049p.u.
In this study, three DG penetration levels with respect to the case without DGs were investigated; these levels were well compared in term of loss reduction and voltage improvement.
Lakshminarayana, Multiple DG Placements in Distribution System for Power Loss Reduction Using PSO Algorithm, Procedia Technology, 25(2016) 785-792
For the first case we see from Table 1 that the reduction in real losses becomes 37.05%.
For the first case we see from Table 2, that the reduction in real losses becomes 41.69% and the voltage deviation with respect to base case without DG is 0.049p.u.
In this study, three DG penetration levels with respect to the case without DGs were investigated; these levels were well compared in term of loss reduction and voltage improvement.
Lakshminarayana, Multiple DG Placements in Distribution System for Power Loss Reduction Using PSO Algorithm, Procedia Technology, 25(2016) 785-792
Online since: January 2022
Authors: Mohammed Sonebi, Said Bouzit, Mohammed Taha, Sofiane Amziane, Cinzia Buratti, Francesca Merli
Renovation of buildings plays a key role in energy savings and sustainable development; a growing interest is focused on insulating building materials, which allow a reduction of heat losses of thin envelopes, through a process of reduction of the heating and cooling demand.
Results and Discussion The thermal conductivity of the examined samples was 0.282 and 0.215 W/mK for specimens without and with cork, respectively; data show a significant difference, with the value for the plaster mixed with cork 24% lower than the pure gypsum plaster.
The insertion of cork in the plaster led to a reduction in density with respect to reference plaster.
The proposed material mixed with cork is a promising solution in building applications, allowing a reduction of thermal loads and energy consumptions, a reduction in structures weight (density decreases by 8-16%), and the production of sustainable solutions which incorporate natural and waste materials.
[13] JCGM 100, GUM 1995 with minor corrections evaluation of measurement data—guide to the expression of uncertainty in measurement, 2008
Results and Discussion The thermal conductivity of the examined samples was 0.282 and 0.215 W/mK for specimens without and with cork, respectively; data show a significant difference, with the value for the plaster mixed with cork 24% lower than the pure gypsum plaster.
The insertion of cork in the plaster led to a reduction in density with respect to reference plaster.
The proposed material mixed with cork is a promising solution in building applications, allowing a reduction of thermal loads and energy consumptions, a reduction in structures weight (density decreases by 8-16%), and the production of sustainable solutions which incorporate natural and waste materials.
[13] JCGM 100, GUM 1995 with minor corrections evaluation of measurement data—guide to the expression of uncertainty in measurement, 2008
Online since: September 2016
Authors: S.I. Yaresko
Microhardness measurement data along the end cutting edge (direction 2 on Fig. 1 and Fig. 2) are shown on Fig. 5 (a) and Fig. 5 (b).
Similar data, obtained along the line formed by the intersection of the major and end flanks of the cutter (direction 1 on Fig. 1 and Fig. 2) are shown in Fig. 6 (a) and Fig. 6 (b).
Analysis of the measurements shows that at a distance of 20 mm from the surface distribution of microhardness in the specified directions (Fig. 1.) with a high degree of confidence correspond to the experimental data (coefficient of multiple determination R2 = 0.71 – 0.94; Fig. 5 (a) and Fig. 6 (a)).
Comparing the obtained data with the diagrams contact pressures on cutter face, which was give in [5], it can be seen that the curves of microhardness distribution along the end cutting edge practically repeat distribution of contact pressures.
The analysis of the microstructure in the contact zone and data on the measurement of microhardness allows to conclude that the LT leads to increase tool life, operating at the cutting conditions when the growth of thermodynamic tension in the cutting zone not leads to the development of processes of softening.
Similar data, obtained along the line formed by the intersection of the major and end flanks of the cutter (direction 1 on Fig. 1 and Fig. 2) are shown in Fig. 6 (a) and Fig. 6 (b).
Analysis of the measurements shows that at a distance of 20 mm from the surface distribution of microhardness in the specified directions (Fig. 1.) with a high degree of confidence correspond to the experimental data (coefficient of multiple determination R2 = 0.71 – 0.94; Fig. 5 (a) and Fig. 6 (a)).
Comparing the obtained data with the diagrams contact pressures on cutter face, which was give in [5], it can be seen that the curves of microhardness distribution along the end cutting edge practically repeat distribution of contact pressures.
The analysis of the microstructure in the contact zone and data on the measurement of microhardness allows to conclude that the LT leads to increase tool life, operating at the cutting conditions when the growth of thermodynamic tension in the cutting zone not leads to the development of processes of softening.
Online since: March 2025
Authors: Krystian K. Wika, Andrew Wright, Tarsem S. Sihra, John M. Scholey
This paper presents an analysis from small hole DHD with scCO2+MQL in comparison to high pressure (HP) soluble oil coolant to provide viable data for furtherance of the technology.
Hole diameter data for each trial consisted of eight data points (every 10th hole in a total of 80 holes drilled per setting).
PC-DMIS software was used to collate the measured data.
The data indicated that both CLF conditions remained well within a surface roughness tolerance (Ra) of 1.6 µm.
The analysis of hole diameter data from every 10th hole drilled for each feed rate (fn)/spindle speed (n) variation, revealed the following results: Run 1 and 6: (Figure 6) Both cooling methods produced holes within tolerance, with HPC consistently mid-tolerance, and a gradual reduction in scCO2+MQL hole size.
Hole diameter data for each trial consisted of eight data points (every 10th hole in a total of 80 holes drilled per setting).
PC-DMIS software was used to collate the measured data.
The data indicated that both CLF conditions remained well within a surface roughness tolerance (Ra) of 1.6 µm.
The analysis of hole diameter data from every 10th hole drilled for each feed rate (fn)/spindle speed (n) variation, revealed the following results: Run 1 and 6: (Figure 6) Both cooling methods produced holes within tolerance, with HPC consistently mid-tolerance, and a gradual reduction in scCO2+MQL hole size.
Online since: June 2020
Authors: Abdulwahab Giwa, John Olusoji Owolabi, Abdulkabir Olawale Gidado
This analysis is normally carried out using real-time data [5].
Table 2: Well data PVT DATA GOR (scf/stb) 312 Oil Gravity (API) 20.16 Gas Gravity (sp gravity) 0.6 water salinity (sp gravity) 1.00965 Down hole Data Measured depth (feet) Tubing Id (inches) Casing Id (inches) Xmas Tree 0 Tubing 9317 2.992 Casing 9330 6.366 IPR Data Reservoir Pressure (psig) 3577.42 Reservoir Temperature (deg F) 160 Water Cut (%) 0 Total GOR (scf/stb) 312 P.I (stb/day/psi) 3.2 Top node pressure (psig) 600 Also, equipment data were used in describing the flow in the tubing to deal with the production phase.
Figure 5: System summary 2.2.1 PVT modelling With the necessary system summary information inputted, the next thing considered was the PVT data set for the black oil model and then the test data by which the PVT test data were matched with the best fit correlation for the black oil.
Figure 11 shows the test data used for this purpose.
This allowed checking the consistency of VLP and IPR and whether there was any need to adjust in order to match the measured data, depending on the percentage difference in calculated liquid rate and bottom hole pressure with the measured data.
Table 2: Well data PVT DATA GOR (scf/stb) 312 Oil Gravity (API) 20.16 Gas Gravity (sp gravity) 0.6 water salinity (sp gravity) 1.00965 Down hole Data Measured depth (feet) Tubing Id (inches) Casing Id (inches) Xmas Tree 0 Tubing 9317 2.992 Casing 9330 6.366 IPR Data Reservoir Pressure (psig) 3577.42 Reservoir Temperature (deg F) 160 Water Cut (%) 0 Total GOR (scf/stb) 312 P.I (stb/day/psi) 3.2 Top node pressure (psig) 600 Also, equipment data were used in describing the flow in the tubing to deal with the production phase.
Figure 5: System summary 2.2.1 PVT modelling With the necessary system summary information inputted, the next thing considered was the PVT data set for the black oil model and then the test data by which the PVT test data were matched with the best fit correlation for the black oil.
Figure 11 shows the test data used for this purpose.
This allowed checking the consistency of VLP and IPR and whether there was any need to adjust in order to match the measured data, depending on the percentage difference in calculated liquid rate and bottom hole pressure with the measured data.
Online since: September 2013
Authors: Dong Su Zhang, Jing Xi Li, Hao Yang, Meng Meng Niu
Sensor input line ; 27 signal acquisition device ; 28.data transmission line signal processing means; 29.Signal processing means
The high-pressure water generating device is a host of high - pressure water jet , for the target object detection of high-pressure water jet to provide a reliable , stable and water beam .
Water nozzle beam strikes the surface of the target material , to generate sound reflection signal is amplified by the sound sensor is conveyed to the signal acquisition means , and the last input signal processing means via a data transmission line .The test system works when the photo is as follows .
Nozzle 65mm / s speed from about 100mm at the impact of topsoil from the target material . 3)signal processing can be carried out simultaneously , using wavelet noise reduction , then MATLAB software for signal processing .
This article only gives the wavelet noise reduction (pretreatment), modulus maximum algorithm the experimental results.
Experimental results Using the experimental system ,making mines buried in the ground model , stones , bricks experiments , the results obtained are as follows: modulus maxima algorithm using wavelet noise reduction then determine results .
Water nozzle beam strikes the surface of the target material , to generate sound reflection signal is amplified by the sound sensor is conveyed to the signal acquisition means , and the last input signal processing means via a data transmission line .The test system works when the photo is as follows .
Nozzle 65mm / s speed from about 100mm at the impact of topsoil from the target material . 3)signal processing can be carried out simultaneously , using wavelet noise reduction , then MATLAB software for signal processing .
This article only gives the wavelet noise reduction (pretreatment), modulus maximum algorithm the experimental results.
Experimental results Using the experimental system ,making mines buried in the ground model , stones , bricks experiments , the results obtained are as follows: modulus maxima algorithm using wavelet noise reduction then determine results .
Online since: April 2014
Authors: Jan C. Aurich, Ingo Gustav Reichenbach
The use of microfluidic devices brings some benefits such as low reagent consumption, shorter analysis time, portability and cost reduction.
As product variety increases within a competitive market the reduction of the time-to-market is desired.
Even selecting the machining parameter is a challenge in micro milling, since unlike a conventional process there is limited data base.
The same parameters were applied in roughing and finishing and no tool breakage took place during the cutting process proving good feasibility plus the large potential for machining time reduction.
In addition the tool life and wear will be investigated and fundamental experiments to extend the data base will be performed.
As product variety increases within a competitive market the reduction of the time-to-market is desired.
Even selecting the machining parameter is a challenge in micro milling, since unlike a conventional process there is limited data base.
The same parameters were applied in roughing and finishing and no tool breakage took place during the cutting process proving good feasibility plus the large potential for machining time reduction.
In addition the tool life and wear will be investigated and fundamental experiments to extend the data base will be performed.