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Online since: September 2013
Authors: Nobuhiro Matsushita, Akira Nakajima, Toshihiro Isobe, Ken Ichi Katsumata, Kiyoshi Okada, Mirabbos Hojamberdiev, Zukhra C. Kadirova
The results suggest that the formation of Fe-phase particles inside the porous structure of the BAU resulted in a sharp reduction in the SBET and Vt values.
The reduction ratios of the SBET values of the BAU-OA, BAU-CL and BAU-HA samples to the SBET value of BAU were approximately 68, 86 and 99%, respectively.
By contrast, the other two Fe precursors, namely, tris-benzohydroxamate and iron oxalate decomposed in the temperature range at 160-400°C, and various nanocrystalline Fe-phases were formed but published data are very controversial [8].
The MB adsorption capacity of the BAU sample is quite similar with the previously reported data [9].
Online since: April 2013
Authors: J.A. Burunkova, I.Y. Denisyuk, Vera Bulgakova, Sandor Kokenyesi
Despite the numerous studies the basic problem of obtaining such composites is the aggregation between the nanoparticles and, consequently, increased light scattering, the reduction of mechanical and other performance characteristics.
Photocatalytic activity of the TiO2–nanoparticles was investigated for reduction of dye (rhodamine - R6G).
Data were compared with the original matrix.
Data on photocatalysis for the minimum and maximum concentration of TiO2 in the composites are shown in Fig. 4 Fig. 4.
Online since: November 2018
Authors: Hamimah Abdul Rahman, Suraya Irdina Abdullah, Dedikarni Panuh, Umira Asyikin Yusop
The analysis data were then defined using Eva Diffrac Plus software.
This phenomenon occurs because has an increasing in size of particle during calcination and has reduction in surface area.
The morphology also shows the increment in particle size and the reduction in the particle surface area by increasing in calcination temperature.
Wiley & Sons, Dynamic Modeling and Predictive Control in Solid Oxide Fuel Cells: First Principle and Data-based Approaches, 25 Jan (2013) - Science - 352 pages
Online since: November 2018
Authors: Yung Wang Choi, Ki Hyung Kim, Sung Rok Oh
The effect of biological panels can contribute to the prevention of warming due to CO2 reduction and to the creation of a comfortable atmospheric environment due to the increase of oxygen amount and to absorb the heat reflected from the concrete wall to reduce heat island phenomenon in the city [2, 3].
In case of W/B 30, the addition of FA 0.25 decreased about 30% compared to FA 0 without FA, The result is a reduction of about 25 ~ 40%.
The quality performance model for predicting the compressive strength according to the influence factors is presented through empirical equation based on this study data.
Fig. 4 compares the predicted compressive strength of the magnesia composite with the experimental data for the equation derived from Eq. 1.
Online since: August 2013
Authors: S.O. Bamaga, M.Md. Tahir
Also, a significant reduction in the cost of light-gauge construction could be expected since the composite action will reduce the size of steel sections and thickness of concrete slabs needed.
All LVDT transducers and load cells were connected to data logger to record the experimental data.
Bearing in mind that the incorporation of profiled steel sheeting leads to reduction in the predicted values, the experimental results could be more conservative and the proposed equation could be safely used to predict the strength capacity of proposed shear connectors.
Online since: April 2013
Authors: Yu Jiao Luo, Ling Feng Qiu, Yi Ming Chen
Basic operational and technical data of the two-sludge system are summarized in Table 1.
Table 1 Basic operational and technical data of the two-sludge system Operational parameter Units Value Anaerobic tank volume m3 0.2 Nitrification (Aerobic) tank volume m3 0.6 Oxidation ditch (Anoxic tank) volume m3 1.45 Sedimentation tank m3 0.1 pH Anaerobic 7.5±0.1 pH Aerobic 7.5±0.1 pH Anoxic 7.5±0.1 Temperature ℃ 25±1 Influent flow rate L/h 100 Sludge retention time d 7/10/20a Internal bypass ratio (r) % 30 Reflux ratio (R) % 30 a different experimental runs.
The reduction in the amount of phosphorus released occurred because OHOs competed against NPAOs concerning organic substrate uptake in the simultaneous presence of a carbon source and an electron acceptor (NO3-).
The sharp decrease of the removal efficiency of NO3--N was attributed to the inefficient utilization of NO3- in anoxic tank, which was probably caused by the reduction of denitrifying polyphosphate-accumulating biomass.
Online since: January 2012
Authors: Jia Hua Jing, Bang Biao Huang, Ji Zhen Zhu, Cai Xia Chen, Shan Luo
However, because light-weight sintered shale brick is porous, so lime burst has a greater reduction in risk of strength of the brick compared with the sintered shale brick.
In the fourth stage, when it is heated to 898 ℃, the reaction is complete and generates the CO2. [2]Keep in mind, although the gas is released, the reduction of volume is not obvious.
In the latter progress of storage and used, the property of burst caused by Mg(OH)2 is low , so the study does not involve it. [3] Experiment and data processing Raw material preparation Raw materials for experiment is selected the aging shale for production and the aging period is 7 days with the mean water content about 10%.
Sintered shale brick Light-weight sintered shale brick Compressive area (mm²) Press Reading (KN) Compressive strength (Mpa) Compressive area (mm²) Press Reading (KN) Compressive strength (Mpa) 1 28197 285.50 10.13 27956 170.25 6.09 2 28556 287.20 10.06 28674 169.90 5.93 3 28400 289.35 10.19 29400 173.60 5.90 4 28072 283.55 10.10 28197 171.35 6.08 5 28431 286.50 10.08 28798 172.50 5.99 6 28679 289.25 10.09 28917 171.95 5.95 7 28420 289.10 10.17 29400 173.65 5.91 8 28548 287.95 10.09 28197 170.70 6.05 9 28920 290.25 10.04 28917 172.30 5.96 10 28917 289.30 10.00 28240 173.70 6.15 The experimental data shows that the average compressive strength of sintered shale brick is10.095Mpa, and the coefficient of variation is 0.0057; and the average compressive strength of light-weight sintered shale brick is 6.001Mpa, and the coefficient of variation is 0.0059.
Online since: January 2012
Authors: Jin Feng Yang, Qun Ping Liu, Xun Deng, Zhen Long Leng
On the other hand, three-dimensional digital model is the key of assembly and CAM, and thus it can enables information data base of computer-aided technology, computer-aided management, computer aided process sales.
The results obtained in the post-processing solution calculation can be graphics and data.
But the motor and the ball screw have reduction gear box, so we add position feedback encoder on the servo as semi-closed loop system, which can overcome the transmission error of the resulting transmission gear box.
The torque of boring and milling processing is so large that we must use DC motors as spindle drive equipment, and reserve the gear reduction mechanism to ensure the low-speed and high-torque characteristics, and spindle speed feedback use encoder.
Online since: January 2016
Authors: Ren Ke Kang, Yi Chu Yuan, Zhi Gang Dong, Yan Bao, Zhao Li
The traditional process of skin thickness reduction is chemical milling, which can meet the demand for thickness tolerance.
Thus mounting the supporting head to the rotary edge from the center of the milling tool can effectively increase the local rigidity of the workpiece, resulting in the reduction of the deformation of the workpiece and improvement of the machining accuracy.
Armarego, Prediction of milling force coefficients from orthogonal cutting data, Trans.
Altinas, Prediction of ball-end milling forces from orthogonal cutting data, Int.
Online since: October 2018
Authors: Roman Evgenyevich Novikov, Leonid Moiseevich Gurevich, Dmitriy V. Pronichev
The operational heat treatments of explosion welded Ti/steel joints above 600°C cause the reduction of the bimetal efficiency due to the formation of the interlayer in the Ti/steel interface composed of brittle TiFe, TiFe2 and TiC carbide compounds.
The growth of the copper sublayer thickness led to a stress reduction in titanium layer (at comparable samples strains).
Cook, A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures, Proceedings of the 7th International Symposium on Ballistics, 21 (1983) 541-547
Rizzi, On the calibration strategies of the Johnson–Cook strength model: discussion and applications to experimental data, Materials Science and Engineering, 610 (2014) 370-413.
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