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Online since: December 2011
Authors: Qi Xing Yang, Sheng Wei Guo, Feng Lan Han, Lan Er Wu
CaO•MgO, and ferrosilicon into retorts inside reduction furnaces.
The briquettes after the MgO reduction are discharged from the retorts as a by-product or waste.
Some of the agent data are listed in Table 1.
Fig. 2: XRD pattern of original Mg slag (a) and sintered slag-borate mixture with 0.53% DB (b) Fig. 3: Equilibrium phase distribution, in gram or weight percent, during cooling of the Mg slag in temperature range of 1300-100°C calculated by FactSage 6.2 The composition of Mg slag in Table 2 was adjusted in Table 3 as input data for the thermodynamic calculation using FactSage 6.2.
There was also a volume reduction of 20-30% for the sintered slag-borate briquettes.
Online since: July 2024
Authors: Mir Hamsa Ellahi, Muhammad Salman Siddique, Sharjeel Haider Siddique, Hameed Ullah, Israr Ahmad, Anwar Khitab
The results showed reduction in density, compressive strength and consistency and an increase in setting time, and flexural strength.
Mostly, the data in this regard pertains to the hardened state of the material.
Both Needle test and flow table test authenticate the reduction in consistency. 2.
Reduction in consistency indicates that the particles absorb water and thus enhance water requirements. 3.
Reduction in density is attributed to lower density of the particle. 4.
Online since: January 2014
Authors: Gang Wei, Hui Jie Qiu, Dong Di Wang
Fig.4 Variation of sedimentaion amount of Fig.5 Variation of void ratio of the soil solutions with time with applied load 3.2 Experimental data analysis Specimen 1 had the following parameters: the wet weight of the back-silting soil m=96.8g, dry weight ms=57.713g, water weight mw=39.1g, volume of the cutting ring V=60cm3, initial density of the back-silting soil ρ0=1.61g/ cm3, water content of the back-silting soil w0=40.4%, the height of the specimen before tests h0=2.0cm, related density of the soil particle ds=2.75, initial void ratio e0= =1.39, net weight of the soil frame hs=h0/(1+e0)= 0.84cm.
The magnitude of reduction was large at the initial stage (close to linear reduction), and decreased gradually and then remained stable at a certain value
(3) For Specimens 1, 2 and 3, when loaded from 12.5 kPa to 100 kPa, the reduction of void ratio was respectively 0.148, 0.187 and 0.207 (an average value of 0.18) with a percentage of reduction of respectively 17%, 24% and 23%, suggesting that the compressibility of sedimentated back-silting soil was good and should be highly regarded.
The magnitude of reduction was large at the initial stage (close to linear reduction), and decreased gradually and then remained stable at a certain value
The reduction of the three sedimentated back-silting soil reached an average of 21%, suggesting that the compressibility of sedimentated back-silting soil was good and should be highly regarded.
Online since: May 2012
Authors: Jin Lv, Chun Yan Chen
That’s is to say, 70% of the core emission-reduction technologies are need to be imported.
In China, the making and implement of policies for low-carbon industry development and saving energy as well as emission reduction are mainly led by government with administrative means to limit the local government and enterprises by progressive realization of energy-saving and emission-reduction indexes.
Then using the low-carbon concept to transform and improve traditional industry for energy-saving and emission-reduction.
On one hand, the government should lead the commercial bank to put the energy-saving and emission-reduction index, resource recycling, pollution emissions into the system of loans, investment and risk assessment when they issue commercial loans.
Capability constructing includes many respects, such as technical standard, technical information, technical data, equipment instrument, calculation software, technical consultation, product certification and technical training, etc.
Online since: February 2009
Authors: P.O. Aiyedun, S.A. Aliu
The required input data were rolling speed, furnace temperature, initial and final thickness of the specimen, roll radius, roll contact time, corresponding temperatures, frictional rolling reduction and specimen width.
"A Study of Loads and Torques for Light Reduction in Hot Flat Rolling", Ph.
"Hot Flat Rolling Simulation by Use of the Bland and Ford's Cold Rolling Theory for HCSS316 at Low Reduction and Low Strain Rates", Proc, Int.
M., "Temperature Changes in Hot Flat Rolling of Steels at Low Strain Rates and Low Reduction
"Effects of Fine Precipitate on the Strength of High Carbon SS316 Hot Flat Rolled at Low Reductions and Low Strain Rates" NSE Technical Transactions 33 (4): 67 - 100. (1998)
Online since: March 2014
Authors: Carlos Antonio Reis Pereira Baptista, Antonio Jorge Abdalla, Andreia de Souza Martins Cardoso, Milton Sergio Fernandes de Lima
There is a lack in literature data about welding of these steels, particularly regarding to laser beam welding [6].
The increased hardness of the welded regions elevated the levels of tensile strength, but reduced the ductility; this reduction was associated with increasing the hardness of the welded region and the formation of small defects.
In both types of steel used there was a reduction in fatigue performance.
The welded steel 300M has reduction fatigue life more pronounced than the steel 4340 due to the difference in chemical composition.
The fatigue limit of the 300M steel was reduced to around 50% after welding while for 4340 steel the reduction was around 15%.
Online since: March 2015
Authors: Claudia Guattari, Gabriele Battista, Luciano Santarpia, Luca Evangelisti, Aldo Fanchiotti
Material Thermal Conductivity [W/mK] Specific Heat Capacity [kJ/kgK] Mass Density [kg/m3] Tuff 0.630 1.300 1500 Concrete 1.263 1.000 2000 Brick 0.500 0.840 840 Roof’s spruce beam 0.120 1.600 450 Plaster 0.900 0.910 1800 Perforated brick 0.325 0.840 1070 Insulating material 0.170 0.920 1200 Shingle 1.000 0.840 2000 Tile 0.840 0.840 1700 Table 2 – Building geometrical characteristics Walkable Inner Area 1252 m2 Building Volume 2364 m3 Total Glazed Area 83 m2 Surface Area Connected to the Ground 210 m2 Results and Discussion Starting from these objective data, simulations under dynamic conditions were performed with the TRNSYS.
Seeing Table 3, it is possible to observe a progressive reduction of the thermal transmittance that is important to decrease the heating energy demand and, at the same time, a solar gain factor reduction that is important to decrease the cooling energy demand.
Energy demands reduction ranges from 20.8% to 27.8% regarding heating and from 6.6% to 26.3% regarding cooling.
It is clear that the highest cooling reduction value (26.3%) is related to the lowest triple glazing g-value.
The highest cooling reduction value (26.3%) is connected to the lowest triple glazing g-value.
Online since: October 2006
Authors: Sang Ll Lee, Joon Hyun Lee, Jong Baek Lee, Jin Kyung Lee, Young Chul Park
Results and Discussions Tensile strength according to the volume fraction of TiNi wire (Vf) and reduction of area (R.O.A).
Fig. 2 and Fig. 3 shows the variation of tensile strength according to the volume fraction of TiNi wire and reduction of area at low temperature condition.
These results can become basic data for optimal fabrication condition of TiNi/Al6061 SMA composite of the largest strength at low temperature.
Fig. 4 Cumulated AE count according to reduction of area(R.O.A).
Fig. 6 AE parameters at the reduction of area 10% (R.O.A=10%).
Online since: September 2013
Authors: Martin Beck, Tilo Sielaff
With 6000h of operation time, those reductions of the pressurized air lead to energy savings of 11240 kWh per year.
Fig. 2 Reduction of losses due to adaptive consideration of linked flux Energy efficient auxilliary components of the machine tool.
To forecast the future using profile of a production machine data can be taken from • Historic data (ERP-system, Maintenance data), • Live measurements and extrapolation and • Expert estimations.
A method to gain such data is presented by [14].
In the η-factory this will be realized by an energy control system which is based on live data measurements and by simulation approaches for key technologies.
Online since: September 2013
Authors: Wei Ting Xu, Hao Fu, Lin Jie Kong, Yang Dong Ou
The largest slump reduction presents at the mixture with single incorporation of PAF with reduction value of 77.5 mm.
Concrete crack resistance abilities Table 5 Experimental results of Concrete crack resistance (0.9kg) Experimental group Maximum crack width ωmax [mm] Total crack areas A [mm2] Cracks reduction factor η Crack resistance performance levels Blank 2.21 1645.6 -- -- PF 0.72 143.5 0.6742 A PAF 0.54 110.4 0.7557 A CF 0.46 97.2 0.7919 A VICK-M1 0.51 101.9 0.7692 A VICK-M2 0.50 74.6 0.7738 A VICK-M3 0.44 72.4 0.8009 A VICK-M4 0.79 105.4 0.6425 A VICK-M5 0.43 66.8 0.8054 A Based on the above experimental data and graphs, it can be seen that the fiber incorporation can effectively restrain the early concrete plastic shrinkage crack.
Crack width reduction coefficient and crack area reduction coefficient are influenced by fiber type, fiber volume fraction and the way of fiber incorporation.
From the crack area reduction coefficient data, the largest one can be up to 94.09%.
The maximum crack width reduction coefficient, crack area reduction coefficient is only 2.27%, 7.73% respectively.
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