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Online since: December 2010
Authors: Fei Zhou, Jie Zheng, Xiang Yang Xing, Ji Ming Liu
In this paper, steel reinforced concrete composite torsion of the cracking torque of simplified and the test data was verified by the formula.
When the steel reinforced concrete structures by the force shown in Figure 1, the basis of the above basic assumptions and internal force distribution of the above calculation, component of the cracking torque calculation formula is: (7) In the formula ,—Plastic components resist torsional moment section,; —Axis tensile strength of concrete, for ordinary concrete,for high strength concrete; —Component cross-sectional area; —Flexural moment resistance component; —Component Section width t; —Component Section Height; —Torque reduction coefficient, the value of K with the concrete strength grade increase and improve.
Conclusions Through the above analysis, draws following conclusion: 1)The reduction formula computed result can agreement with the test result, indicated that proposes the reduction formula with this article to bond to the section concretes is turned component's dehiscence torque to carry on the simplified computation is feasible. 2) Due to the stress of steel reinforced concrete structures and mechanism of reinforced concrete structures, cause different calculation formula of crack torque changes.
Online since: February 2012
Authors: You Zhou Jiao, Pan Ding, Shuang Li Du
The analysis indicates that the objective boiler adopting belite Q-phase cement clinker technology, on the whole estimate of the resourceful benefit of coal fly ash and SO2 emission reduction benefit, the economic benefit of power plant obtained is 25,870 thousand yuan per year.
Substitute relevant data into equation 1, and get the total revenue of Power plant fly ash resource before the boiler co-generation of 25.71 million yuan/ year after calculation.
(Ten thousand tons per year) (2) B1: Annual consumption of Weibei and Guangwang mixed coal before co-generation, 1,061.9 thousand tons per year; B2: Annual consumption of Yanzhou coal upon boiler co-generation; Qnet,ad1: Net calorific value of Weibei and Guangwang mixed coal air dry basis, 17,835kJ/kg; Qnet,ad2: Net calorific value of Yanzhou mixed coal air dry basis, 17,488kJ/kg; E2: Percentage of mass fraction of CaO and MgO to that of Yanzhou coal, 36.1%; Substitute relevant data into Equation 2, and get B2--annual consumption of Yanzhou coal with the boiler of co-generation technology is 795.7 thousand ton per year Boiler uses the technology of co-generated belite Q-phase cement clinker, assuming that it is of fine burnt structure and its combustion efficiency still keeps at 98.46%.
Estimation of SO2 Emission Reduction Benefit in Power Pant.According to "Notice of the State Council on Issuing the Comprehensive Working Schemes on Energy Conservation and Emission Reduction", and as per the principle of compensating management cost, enhance effluent charge standards for pollutant discharging units and increase the SO2 disposing charges from the current 0.63(yuan.kg-1) to 1.26 yuan/kg [6] within three years.
And on the whole estimate of the resourceful efficiency of coal fly ash and SO2 emission reduction efficiency, it can be seen that the economic benefit that the power plant obtained is 25,870 thousand yuan per year after the objective boiler adopting belite Q-phase cement clinker technology.
Online since: December 2012
Authors: Jun Han, Fei Jiang, Shu Fang Zhang
If a task's input data need to be provided by its parent task, the file will be imported as data flow for a tag.
The Application Running Module The ISCEs run module including control manager and Data Manager, this application controls and data management functions can be dealt separately.
Data Manager.
The completion time reduction for LU to decompose sub-task is not obvious, because the task of calculation has some data transfer and communication delays.
For the matrix inversion and matrix multiplication, with the increasing number of working machines, the task completion time is quick, because these two sub-tasks only are delayed in the stage of data transmission and data collection.
Online since: May 2012
Authors: M.G. Bannikov, I.P. Vasilev
Analysis of experimental data was supported by an analysis of fuel injection and combustion characteristics.
Limited data have been published on testing Mustard biodiesel in diesel engines.
Inspection of data of Fig. 2 reveals that with biodiesel NOx emission was decreased at all loads.
Such a statement would be inconsistent with the data of Fig.1.
In this research extensive experimental data were obtained on fuel injection and combustion characteristics.
Online since: January 2017
Authors: Amine Bakhti, Farouk Benallel Boukhoulda
In the first part of this study, by means of a data acquisition system, a signal processing analysis of the contact force and acceleration of the projectile is carried out in order to deduce the oscillations of the responses.
The curves show a reduction of resonance frequencies with the increase in the level of energy.
¶This drop of frequency noticed on the table 4 is linked to the reduction of stiffness of the structure.
This is explained by a reduction of stiffness of the composite plate caused by damage in the structure.
This drop in frequency is related to the reduction of the stiffness of impacted structure in hygrothermal aging which becomes more flexible and less rigid.
Online since: August 2014
Authors: Guang Liang Fan, Xiao Hui Cao, Jun Guo He, Jian Hua Qu, Xian Lin Meng
The reduction of indicators and the weakening of the multiple correlation among indicators were considered in Principal Component Analysis.
Based on the water quality monitoring data of typical monitoring section in 2013, the study on the environmental quality assessment of downstream section in mudanjiang was given in this paper.
The concrete computation steps are divided into the original variable matrix establishment, index data standardization, the correlation coefficient matrix calculation, the eigenvector matrix calculation, main component matrix calculation [7].PCA mainly used the analysis software IBM SPSS Statistics 19 data [8].
According to the conditions and monitoring data of actual situation, five monitoring indicators cadmium, arsenic, chromium, class number of e. coli, petroleum were finally screened by trial and error.
Component analysis can convert multi-indicators to a few comprehensive indicators, under the premise that monitoring data loss as little as possible.
Online since: September 2011
Authors: Grant V. M. Williams, David Clarke, Stefaan Janssens
The Sm2+ temperature dependent PL lifetime data can be interpreted in terms of back transfer from the 5D0 level to the lowest 5d level followed by non-radiative decay from the 5d level.
X-ray diffraction (XRD) data were collected on a Philips PW3700 series powder diffractometer using Co-Kα radiation.
(a) XRD data and (b) a TEM image of KMgF3 nanoparticles doped with 5% Sm3+.
For temperatures higher than 60 K there is clearly a reduction in the lifetime with increasing temperature.
Good agreement was observed between the theoretical curve using Eq. 2 and the experimental data, as depicted in Fig. 3c.
Online since: November 2014
Authors: Jeung Hwan Doh, Wan Mohd Sabki Wan Omar, Kriengsak Panuwatwanich
Hybrid LCA has been conducted to expand the system boundary by filling the gaps in traditional LCA data inventories.
Previous studies identified various parameters influencing variations in EE consideration such as methodological selection, primary and delivered energy, age of data, manufacturing technology, source of data, and completeness of data [5, 6].
Meanwhile, Crawford [3] also identified variation in top-down analysis due to homogeneity assumption, proportionality assumption, conversion of economic data to energy data, use of national average, capital equipment and sector aggregation.
The changes of EE and EC could be influenced by one or combination of the following parameters: system boundaries, method of EE analysis, geographic location, primary and delivered energy, age of data sources, sources of data, completeness of data, and temporal representativeness [5].
Crawford, Using Input-Output Data in Life Cycle Inventory Analysis, in, Deakin University, Victoria, Australia, 2004
Online since: April 2017
Authors: Muhammad Fareez Jamali, Syahrir Ridha, Riau Andriana Setiawan
Results show that the addition of slag reduces the thickening time from 30 minutes to just only 18 minutes with almost 40% reduction in time.
Safety Data Sheet (SDS) of Sodium Silicate used was provided by Scientific Lab.
Under temperature of 65oC and 3,000 psi, the volume of fluid loss shows a significant reduction as the addition of slag increase as refer to Fig. 2.
Without any slag presence, an amount of 0.64 ml of fluid loss produced while reduction to more than 40% is observed (0.38 ml) with 10% of slag introduced into the mixture.
Fluid loss shows a significant reduction in the presence of slag.
Online since: March 2020
Authors: Banjuraizah Johar, Soon An Ong, Li Ngee Ho, Abdul Haqi Ibrahim, Yong Por Ong
The oxidation and reduction process promote the conversion of chemical energy in the pollutants into electrical energy.
PFC comprises of a photoanode electrode (photocatalyst carrier), a cathode electrode (reduction electrocatalyst carrier) and an aqueous electrolyte.
XRD data was collected by an incident beam of 2-theta (2θ) mode over a scan range of 20° to 80° with a scan rate of 0.5 s/step.
Upon illumination of UVA light, the electrons (e-CB) of ZnO were excited from valence band (VB) to conduction band (CB) and traveled to the cathode for participation in reduction reaction through the external circuit [6].
On the other hand, the reduction process in aerobic condition would produce superoxide radical (•O2−) which would further help in mineralization of the organic matter [10].
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