Search results

Current codes[2] regulations vertical prestressing vertical normal stress formula superior to the 0.6  reduction factor in  the regulations on the basis of  earlier versions of the bridge.
However, from the field research can be found that at present there are many vertical prestressing Finishing Rolling Rebars less than 0.6 times the reduction factor.
A) Sensor arrangement B) Data acquisition system C) Test of vertical prestressing steel exsertion segment length Fig.3, The photo of vertical prestressing reinforcement tension test In the design drawings , the tension of JL32 :619.2KN,according to , vertical prestress multiplied by 0.6 times safety coefficient, and the tension will need at least 37.152 tons, so 43% can not reach the standard requirement.
Fig.4, The test tension values of vertical prestressed reinforced Though field detection process, there are several major reasons about finishing rolling rebar box-girder webs vertical prestress tension not in place: (1) Manual errors, in addition to the on-site construction in this dissertation the detection method for testing, while also using high-precision displacement meter vertical prestressing finishing rolling rebar elongation, detected through on-site manual, it's quite prevalence that nut is not tightened, resulting in vertical prestress pull reduction.
From the results of literature[4] we can see, if the installation of the anchor plate exist great error, then the angle between the nut and the anchor plate will cause the vertical prestressed reduction. 4 The Conclusion (1) In this paper we derives the vibration characteristic analysis of the exsertion segment of finishing rolling rebar

Reduction of water transport rate is often ensured by insulation or application of modifying additives and admixtures.
Mixture Ref-0 A-0.5 B-1.0 Capillary absorbability 1. day [g/mm2] 0.0049 0.0025 0.0009 Capillary absorbability 7. day [g/mm2] 0.0091 0.0046 0.0016 Conclusions Realized experimental program offers interesting data of capillary sorption measurement.
Reduction of water transport was just about 50 % for the 0.5% dose of admixture and more than 80 % with the 1% dose of admixture, related to reference mixture.
Reduction of water transport in building materials could improve number of utility properties and increase comfortableness of inner conditions for human life.
Next to extension of lifetime of building materials could improve visual impression of used materials because of reduction of efflorescences which are closely related to water transport.

The microscopic driving force operating during sintering is the reduction of the excess energy associated to surfaces.
The energy reduction can happen by the reduction of the total area by increasing the average particle size, and/or by substituting solid/vapor interfaces by solid/solid interfaces in the grain boundaries, leading to densification, with concomitant grain growth.
As a result, pore reductions as well as grain growth are promoted.
These results provided very important data regarding the amount of the niobate second phase in the investigated temperatures.

The obtained Co-doped Fe3O4 nanoparticles show good electrocatalytic activity for the H2O2 reduction, and has been applied to detect H2O2.
It can be seen that all the main peaks can be indexed undisputedly as the pure Fe3O4 of spinel structure (space group: Fd-3m), which was in good agreement with the standard data (JCPDS card 19-0629).
The Co-doped Fe3O4 nanoparticles exhibits reduction of H2O2 starting around -0.3 V in 0.01M phosphate buffer (pH 7.0) containing 7 mM H2O2 (curve b), which may be applied as the quantitative analysis.
Seong, Electrocatalytic reduction of hydrogen peroxide by silver particles patterned on single-walled carbon nanotubes, Sensor.
Lei, Electrocatalytic oxidation and reduction of H2O2 on vertically aligned Co3O4 nanowalls electrode: Toward H2O2 detection, J.

In addition, in the laboratory, it can grow in anaerobic or microaerophilic conditions, coupling the oxidation of sulfur (S0) or formate to the reduction of Fe(III) [2,3].
The sparse information that is available has not been linked to genome data, impeding a more detailed understanding of the versatility and dynamics of anaerobic respiration.
Other predicted regulatory targets are: fdhBD, encoding subunits of formate dehydrogenase that is predicted to couple formate oxidation to Fe(III) reduction [2]; hupSL encoding an uptake hydrogenase system in cells grown under N2-fixing (anaerobic) conditions [9]; sreABCE that encodes subunits of a sulfur reductase system involved in the reduction of elemental sulfur with hydrogen as electron donor [10]; glnB, a P2 regulator of nitrogen fixation; adhP (alcohol dehydrogenase) and ldh (lactate dehydrogenase), both implicated in NAD + restoration by fermentation processes.
These predictions support models of anaerobic metabolism in which: pathways could be activated for hydrogen oxidation coupled with sulfur reduction; nitrogen fixation could be regulated; a high affinity terminal oxidase for oxygen could be downregulated; formate oxidation and fermentation pathways could be activated.

This paper collects measure data from 1000 MOSFET devices.
The fitting curve of simulation data and measure data of PSP statistical model can reflect the accuracy of the statistical model.
The contrast of simulation data and measure data on the correlation between NMOS and PMOS is also an important target.
Fig. 3 is the correlation contrast figure of simulation data and measure data for Vth_gm in narrow devices.
The figure shows that the data of NMOS and PMOS devices for Vth_gm has certain relevance, and the correlation of simulation data closes to the correlation of measure data.

China is the state with world’s fastest development and longest line mileage operated in high speed rail (HSR) industry, which authorizes a reduction in transportation costs and can be a tool for tourism destination development.
A HSR which is a new derivative for the modern transportation industry authorizes a reduction in transportation costs and be a tool for the development of tourism by allowing accessibility.
In the year of 2010 and 2011, the corresponding data are 507.6 thousand, 613.2 thousand, 25.8% and 20.8%.
Conclusion A HSR authorizes a reduction in travel time and can be a tool for tourism development.

Occurred a decreasing of steady state creep in function of the reduction of oxidation process, showing that Ti-6Al-4V alloy lifetime was strongly affected by the atmosphere due the oxidation suffered by the material.
The tensile properties are summarized in Table 1 namely, 0.2% yield stress (YS), ultimate tensile stress (UTS), elongation (EL) and reduction of area (RA).
Creep data at 500°C.
The highest values of tp and the reduction of the steadystate creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.
The highest values of tp and the reduction of the steady-state creep rate demonstrate that the higher creep resistance of Ti-6Al-4V is observed in uncoated samples in nitrogen atmosphere and coated samples in air.

The resulting bonded sheet can then be cut, stacked, and the process repeated indefinitely with no net reduction in sheet thickness [12].
The data shows a significant nt and increase in HAGB area with increasing rolling asymmetry.
It should be noted that these are preliminary results and that higher rolling reductions could be achieved on a larger scale industrial mill.
Similar features were observed in the AA8079 alloy, although the reduction in HAGB percentage and increase in grain width were not as prominent.
A A path and increases the total effective strain level for a given rolling reduction.

The experimental data The data of temperature -viscosity before filtering From table 1, the viscosity of filter waste lube before 20°C is for 93 x 10-3 Pa • S, 40°C is 26.6 x 10-3, 60°C is 14.1 x 10-3, 70°C is 11.1 x 10-3. 20°C is a benchmark, when the temperature 20 °C rise to 70°C, the viscosity drops by times.
The data of temperature -viscosity after filtering The data of temperature -viscosity after filtering is shown in Fig 2.
Oil viscosity after filtering waste in 20°C is 90 x 10-3 Pa • S, 40°C is 27.5 x 10-3, 60°Cis 15.1 x 10-3, 70°C is 10.5 x 10-3. 20°C is a benchmark, then, when the temperature 20°C rise to 70 °C, the viscosity drops by times Heat oil after filtering in 20°C is 74.2 x 10-3 Pa • S; 40 °C is 26.3 x 10-3; 60°C is 14.3 x 10-3; 70°C is 11 x 10-3 Pa • S. 20°C is a benchmark , when the temperature 20°C rise to 70 °C, the viscosity drops by times Figure 1, figure 2 it is concluded: lubricant viscosity value changes with the rise of temperature and the magnitude of reduction is not the same.
When the temperature is close to 90 °C or so, the viscosity values reduction is small; Temperature over 90 °C, the viscosity value change very slightlyl, Where the temperature rise affects to improve filtering in a small role.