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Online since: September 2013
Authors: Assed Naked Haddad, Bruno Grifo Ferreira Rossi Cortes, Ana Catarina Jorge Evangelista
            
                The results indicate the feasibility to the use of the HSA despite the reduction of the mechanical properties of the concrete.
Despite the lack of data on major research associations and ready-mixed concrete plant present on the national scene, is currently estimated an index of waste average of 7%.
Extrapolating this concept, according to data from [2] this index points to a volume of about 400 million cubic meters of concrete waste a year around the world.
According[1-4] waste concrete management in ready-mixed plant generate numerous direct and indirect benefits, such as: · -Reduction in the consumption of non-renewable natural resources; · -Reduction of areas destined for landfill; · -Reduction of energy consumption; · -Reduction of pollution in cement production, for each ton of clinker produced generates approximately one ton of carbon dioxide (CO2) in the atmosphere The manufacturer the admixture used in the tests (Grace Construction Products), the HSA is a product which in addition to fresh concrete stabilizes the cement hydration process, keeping the concrete in a fluid state for a longer or shorter time, depending on the dosage thereof.
Figure 1 – Equipament ADICAL reading data Experimental program Method.
            
    Despite the lack of data on major research associations and ready-mixed concrete plant present on the national scene, is currently estimated an index of waste average of 7%.
Extrapolating this concept, according to data from [2] this index points to a volume of about 400 million cubic meters of concrete waste a year around the world.
According[1-4] waste concrete management in ready-mixed plant generate numerous direct and indirect benefits, such as: · -Reduction in the consumption of non-renewable natural resources; · -Reduction of areas destined for landfill; · -Reduction of energy consumption; · -Reduction of pollution in cement production, for each ton of clinker produced generates approximately one ton of carbon dioxide (CO2) in the atmosphere The manufacturer the admixture used in the tests (Grace Construction Products), the HSA is a product which in addition to fresh concrete stabilizes the cement hydration process, keeping the concrete in a fluid state for a longer or shorter time, depending on the dosage thereof.
Figure 1 – Equipament ADICAL reading data Experimental program Method.
Online since: May 2011
Authors: Xiao Ming Guan, Chang Feng Yuan, Guang Ming Yu, Qian Qian Zhao, Jing Bo Zou
            
                This paper fixes the data of the ground settlement and moving calculation parameters by doing a back analysis of monitoring data which comes from ground settlement caused by subsurface excavation and combing with other engineering experience.
This research can reduce or avoid our country and people’s losing,meanwhile,it can provide technical support for the disaster prevention and reduction of underground engineering.The paper mainly make a numerical simulation analysis of which surface deformation caused by tunnel excavation affetes shear-wall frame at main city aera.
It can predict the settlement by using the probability integral method. the parameter is according to the local actual monitoring data’s back analysis and similar project.
Table 2 Prediction Data Of Surface Deformation X(m) -31 -24 -17 -10 -5 -2 0 3 6 11 16 25 34 W(mm) 0 1.8 2.9 5.9 8.1 9.6 11.0 9.8 8.7 7.4 3.9 2.2 0 U1(mm) 1.1 1.9 3.2 3.8 3.1 1.3 0.9 1.2 3.3 4.1 4.1 2.7 0 E1(mm/m) 0.09 0.18 0.20 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.18 0.23 0.09 T1(mm/m) 0 0.18 0.31 0.45 0.41 0.31 0.10 0.26 0.33 0.48 0.51 0.33 0.10 K1(mm-1) 0.01 0.03 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.01 ps: X means horizontal distance between measuring point and tunnel center .1 stands for calculation data of principal direction stress.
It can provide reasonable data for damage evaluation of the building on the ground.
            
    This research can reduce or avoid our country and people’s losing,meanwhile,it can provide technical support for the disaster prevention and reduction of underground engineering.The paper mainly make a numerical simulation analysis of which surface deformation caused by tunnel excavation affetes shear-wall frame at main city aera.
It can predict the settlement by using the probability integral method. the parameter is according to the local actual monitoring data’s back analysis and similar project.
Table 2 Prediction Data Of Surface Deformation X(m) -31 -24 -17 -10 -5 -2 0 3 6 11 16 25 34 W(mm) 0 1.8 2.9 5.9 8.1 9.6 11.0 9.8 8.7 7.4 3.9 2.2 0 U1(mm) 1.1 1.9 3.2 3.8 3.1 1.3 0.9 1.2 3.3 4.1 4.1 2.7 0 E1(mm/m) 0.09 0.18 0.20 0.09 0.09 0.09 0.09 0.09 0.09 0.09 0.18 0.23 0.09 T1(mm/m) 0 0.18 0.31 0.45 0.41 0.31 0.10 0.26 0.33 0.48 0.51 0.33 0.10 K1(mm-1) 0.01 0.03 0.03 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.01 0.03 0.01 ps: X means horizontal distance between measuring point and tunnel center .1 stands for calculation data of principal direction stress.
It can provide reasonable data for damage evaluation of the building on the ground.
Online since: January 2015
Authors: Yury B. Lishmanov, Nikolay G. Krivonogov, Konstantin V. Zavadovsky
            
                GBPS results suggest that the signs of right ventricular dysfunction in PE are: the reduction in its stroke volume, as well as reduction in the peak filling and ejection rate.
The state of the right ventricle was assessed using equilibrium GBPS data.
The results obtained agree with published data on the dissociation between the amount of vascular bed lesions in PE and the degree of the increase in pulmonary vascular resistance [10].
The consequence of prolonged increase in pulmonary vascular resistance is usually dilatation of the right heart compartments and reduction of its contractile function [6].
Conclusion Gated blood pool SPECT with radionuclide technetium 99m-labelled sodium diphosphate decahydrate reveals signs of right ventricular dysfunction (reduction of its stroke volume and peak ejection and filling rate) even with only a small amount of pulmonary hypoperfusion in patients with thromboembolism of pulmonary artery branches.
            
    The state of the right ventricle was assessed using equilibrium GBPS data.
The results obtained agree with published data on the dissociation between the amount of vascular bed lesions in PE and the degree of the increase in pulmonary vascular resistance [10].
The consequence of prolonged increase in pulmonary vascular resistance is usually dilatation of the right heart compartments and reduction of its contractile function [6].
Conclusion Gated blood pool SPECT with radionuclide technetium 99m-labelled sodium diphosphate decahydrate reveals signs of right ventricular dysfunction (reduction of its stroke volume and peak ejection and filling rate) even with only a small amount of pulmonary hypoperfusion in patients with thromboembolism of pulmonary artery branches.
Online since: October 2012
Authors: Lu Cai, Wei Fei Huang, Ying Gang Shu, Sheng Liang Si
            
                The sludge reduction in group W was determined by comparing the sludge weight of group W and group B, resulting in a gravimetric reduction of 53.8 %, indicating a good sludge reduction.
These data indicated the concentration of heavy metals in sludge (i.e. worm faece) rose notably after sludge reduction.
A new reactor concept for sludge reduction using aquatic worms.
Excess sludge reduction induced by Tubifex tubifex in a recycled sludge reactor.
Effect of Aeolosoma hemprichi on excess activated sludge reduction.
            
    These data indicated the concentration of heavy metals in sludge (i.e. worm faece) rose notably after sludge reduction.
A new reactor concept for sludge reduction using aquatic worms.
Excess sludge reduction induced by Tubifex tubifex in a recycled sludge reactor.
Effect of Aeolosoma hemprichi on excess activated sludge reduction.
Online since: January 2013
Authors: Zbigniew L. Kowalewski, Tadeusz Szymczak
            
                An analysis of the results showed a significant reduction of the axial stress (even equal 90% for the torsional amplitude ±0.8%, in both cases of cyclic loading).
In the case of copper the yield point reduction almost achieved the level of one order.
Such reduction was also discovered for steel and aluminium alloy, however, its drop magnitude was lower than that for the copper obtained.
Kowalewski and Szymczak have also shown that the reduction of proportional limit and yield point under tension is solely attributed to those cases where tension is combined with torsion.
Conclusions The paper presents new data coming from combined loading tests.
            
    In the case of copper the yield point reduction almost achieved the level of one order.
Such reduction was also discovered for steel and aluminium alloy, however, its drop magnitude was lower than that for the copper obtained.
Kowalewski and Szymczak have also shown that the reduction of proportional limit and yield point under tension is solely attributed to those cases where tension is combined with torsion.
Conclusions The paper presents new data coming from combined loading tests.
Online since: September 2013
Authors: Jiang Yu Xie, Shang Ma, Chang Rong Zhang, Feng Chen, Guang Yuan Liu, Rui Bo Wang
            
                The numerical simulation method was adopted to analyze the effect on boundary layer thickness reduction of various vortex generator parameters.
It is recognized that minimizing or eliminating the wall boundary layer will certainly guarantee the accuracy of semi-span test data.
The vortex generator design method is still empirical, especially for wind tunnel applications[3], research on design parameters effect is meaningful for further optimization of vortex generators. 2.4m transonic wind tunnel is the most important experimental platform for Chinese large-scale aircraft development, the capability of producing high accurate test data is crucial for future advanced system design.
Considering the simulating objective is to address the boundary layer thickness reduction after the application of vortex generators, the absolute value difference has no influence on results analysis.
It should be noted that the closest location case (10δ*) produces the highest vortices magnitude in model mounting region; however, it results in the lowest thickness reduction.
            
    It is recognized that minimizing or eliminating the wall boundary layer will certainly guarantee the accuracy of semi-span test data.
The vortex generator design method is still empirical, especially for wind tunnel applications[3], research on design parameters effect is meaningful for further optimization of vortex generators. 2.4m transonic wind tunnel is the most important experimental platform for Chinese large-scale aircraft development, the capability of producing high accurate test data is crucial for future advanced system design.
Considering the simulating objective is to address the boundary layer thickness reduction after the application of vortex generators, the absolute value difference has no influence on results analysis.
It should be noted that the closest location case (10δ*) produces the highest vortices magnitude in model mounting region; however, it results in the lowest thickness reduction.
Online since: July 2019
Authors: Tobias Höchbauer, Christian Heidorn, Nikolaos Tsavdaris
            
                The future challenges for SiC device technology are cost reduction and increased reliability.
Introduction As the market share of SiC devices in power electronic application grows continuously, cost reduction and reliability improvement of SiC power devices becomes essential.
The defect density data show that the new epitaxy process results continually in a BPD to TED conversion rate ranging from 99.995 to 100% with an edge exclusion of 2.5 mm.
Summary Cost reduction and increased reliability are the main future challenges for SiC devices and the epitaxial layer growth is a key process in order to accomplish this.
Yield increase during epitaxial growth is achieved by the reduction of structural defects such as basal plane dislocations and triangular defects and the increase of doping and thickness uniformities.
            
    Introduction As the market share of SiC devices in power electronic application grows continuously, cost reduction and reliability improvement of SiC power devices becomes essential.
The defect density data show that the new epitaxy process results continually in a BPD to TED conversion rate ranging from 99.995 to 100% with an edge exclusion of 2.5 mm.
Summary Cost reduction and increased reliability are the main future challenges for SiC devices and the epitaxial layer growth is a key process in order to accomplish this.
Yield increase during epitaxial growth is achieved by the reduction of structural defects such as basal plane dislocations and triangular defects and the increase of doping and thickness uniformities.
Online since: March 2011
Authors: Hajime Okumura, Shinichi Nakashima, Satoshi Tanimoto, Masanori Miyabe, Takamitsu Shiiyama, Tatsuhiro Suzuki, Hiroshi Yamaguchi
            
                It has been reported that even Ni-based contacts formed in the n++ region exhibited a steep reduction of contact resistivity in an annealing temperature range > 900°C.
This reduction cannot be explained by the carbon vacancy induced donor model (Vc model) proposed by Han and his coworkers [Appl.
We speculate that this inconsistency was caused by a misinterpretation of XPS depth profiling data.
Summary Ni-based (TLM) contacts formed in the n++ region exhibited a steep reduction in contact resistivity with annealing at TA > 900°C.
The carbon vacancy induced donor model cannot well explain this reduction.
            
    This reduction cannot be explained by the carbon vacancy induced donor model (Vc model) proposed by Han and his coworkers [Appl.
We speculate that this inconsistency was caused by a misinterpretation of XPS depth profiling data.
Summary Ni-based (TLM) contacts formed in the n++ region exhibited a steep reduction in contact resistivity with annealing at TA > 900°C.
The carbon vacancy induced donor model cannot well explain this reduction.
Online since: February 2011
Authors: Jiu Ju Cai, Tao Du, Qi Zhang, Xiao Ying Wang, Da Wei Zhang
            
                At present, based on the current functions such as data collection, monitoring, energy supply and demand balance analysis, energy assessment and management, EMS will develop and tap its own capabilities to realize the real-time forecast, allocation optimization and smart scheduling against energy to meet the actual needs.
Main functions of Energy Management System The functions of EMS can be divided into three levels generally: firstly, the control of energy management equipments and data acquisition from energy equipment; secondly, energy monitoring and scheduling system; last, energy analysis and management.
(1)Data acquisition function.
Collect the production data required for the purpose of monitoring, data calculation, statistics and analysis to achieve energy management in the works
Collect energy consumption data and establish a database according to it and gather the purchase and consumption of all energy and the product and process energy consumption to make up a table of actual energy balance
            
    Main functions of Energy Management System The functions of EMS can be divided into three levels generally: firstly, the control of energy management equipments and data acquisition from energy equipment; secondly, energy monitoring and scheduling system; last, energy analysis and management.
(1)Data acquisition function.
Collect the production data required for the purpose of monitoring, data calculation, statistics and analysis to achieve energy management in the works
Collect energy consumption data and establish a database according to it and gather the purchase and consumption of all energy and the product and process energy consumption to make up a table of actual energy balance
Online since: October 2010
Authors: Ri Liang Liu, Cheng Rui Zhang, Guo Qiang Yuan, Yuan Cai Zhang
            
                It is predicted 
that the application of STEP-NC will result in 35% reduction in time for job shop to set up 
machining jobs, 75% reduction in data preparation, and 50% reduction in machining time 
(www.steptools.com).
It provides many functions to store or extract data from STEP media database.
SDAI defines an application programming interface to EXPRESS defined data.
… ENDSEC; DATA;
In the DATA section, STEP-NC files are based on EXPRESS-defined data model.
            
    It provides many functions to store or extract data from STEP media database.
SDAI defines an application programming interface to EXPRESS defined data.
… ENDSEC; DATA;
In the DATA section, STEP-NC files are based on EXPRESS-defined data model.