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Online since: June 2010
Authors: Ying Fang Fan, Hong Nan Li, Ying Zi Zhang, Xue Nan Wu
The reduction in the useful service-life of RC structures, mainly due to reinforcement corrosion, is a cause of concern to the construction industry world wide [1].
Other Literature's Test Result In order to avoid this experiment result's error and limited data, the other literature test results is analyzed in this paper.
Due to the stress concentration and cross section reduction caused by pitting, the ultimate tensile strength and ultimate mean strain of steel strands decline remarkably at the cross-section loss of 0 to 0.85%, it is indicated that as corrosion ratio the cross-section loss can't describe the corrosion degree of steel strands.
Online since: August 2013
Authors: Hussein A. Mohammed, Mohsen Golieskardi, K.M. Munisamy, Mazlan A. Wahid
Liu et al .[7] investigated the thermal conductivity of copper–water nanofluids produced by chemical reduction method.
Many studies have been carried out to study backward facing step and there is very limited data on forward facing step.
Wang, Enhancement of thermal conductivity with Cu for nanofluids using chemical reduction method, Int.
Online since: December 2012
Authors: Zhi Hua Liu, Jun Gang Liu, Yi Guo Dong, Yang Chen, Li Ren Xing, Zhi Qiang Liu
During the coalification, the processes of dehydrate, volatile reduction and volume contraction can cause the endo-microfractures developed due to coal body tension.
Secondly, Data statistics of the endo-microfracture in the Qinshui basin showed that the microfracture frequency emerges a moderate positive linear correlation with the telocollinites content [11].
From low volatile bituminous to anthracite stage (Ro, max> 1.7), it has an overall reduction of fractures frquency, but type B fracture has an increasing trend, which may be related to the changes of the regional stress field.
Online since: December 2013
Authors: Hasnah Mohd Zaid, Hasan Soleimani, Noorhana Yahya, Noor Rasyada Ahmad Latiff, Jamshid Amighian, Birol M.R. Demira
Recent progress in the application of magnetic nanoparticles in enhanced oil recovery have shown promising results for specific purposes e.g. heat generation, foam and emulsion stabilization and interfacial tension reduction.
TEM images of Co2+0.75Fe2+0.25Fe3+2O4 nanoparticles From XRD analysis, the diffracted peaks could be indexed to the face-centred cubic structure of iron cobalt ferrite and are consistent with the standard diffraction data, JCPDS 76-2496(C).
A change in the pressure across the porous medium was observed in both cases, suggesting greater viscosity of fluid or permeability reduction due to core-plugging.
Online since: May 2025
Authors: Middemedi Bhargav, V. Suresh Babu
Notably, an increase in the fiber length resulted in a reduction in the impact strength of the composite[13] After conducting an extensive review of the existing literature, it became evident that there is a noticeable gap in research concerning the utilization of Multi-Walled Carbon Nanotubes (MWCNTs) as filler materials in natural and synthetic hybrid composites.
Fig. 2(b) illustrates the UTS of different orientations, along with data related to the UTS of composites containing varying weight percentages of MWCNTs (0.5%, 0.75%, 1%, and 2%).
Moreover, the introduction of 1wt% MWCNTs resulted in a remarkable 25% increase in ultimate tensile strength, reaching 100MPa, though further additions of nano-particles led to a reduction in tensile strength.
Online since: January 2013
Authors: Karimbi Koosappa Mahesh, José Luis Ocaña, Francisco Manuel Braz Fernandes, Corneliu Marius Crăciunescu, Norbert Schell, João Pedro Oliveira, Rosa Maria Miranda, Luisa Quintino
Falvo et al [6] found a reduction on UTS and in shape memory effect (SME), with reduced recoverable strain for strains up to 4 %.
Chan et al [13] have found a small amount of Ni3Ti in the welds; their DSC results show that the onset of transformation temperatures (As and Ms) of the NiTi welds shifted to lower temperatures as compared to the as-received NiTi alloy; they assumed that Ni3Ti precipitation was responsible for the transformation temperatures decrease found by DSC; this argument is not consistent with the fact that the Ni3Ti precipitation leads to Ti enrichment of the matrix and thus should instead give rise to higher transformation temperatures; UTS of the NiTi welds was comparable to the as received NiTi alloy, but a little reduction in the strain recovery by SE was noted.
Data acquisition was performed on spots along a line perpendicular to the weld bead (beam spots of 0.1x0.1 mm, spaced by 0.2 mm).
Online since: May 2014
Authors: Abu Kassim Khairil Anwar, Isa Mohd Hafzi Md, Jawi Mohd Zulhaidi, Rahman Mohd Khairudin
In general, the Committee relies on the sales volume data as the basis in selecting the car [3].
The point reduction from the total score (out of 16.00) is relatively huge, especially for knee impact.
This prevented severe points reduction for all three models to maintain their AOP score above the 5-star threshold.
Online since: September 2014
Authors: Farshad Akhlaghi, Shaya Saffari
Introduction Al-Mg2Si composites, due to their light weight, good wear resistance and proper castability have been developed to meet the demand of weight reduction and saving fuel for high-performance applications such as automotive and aerospace industries.
Casting route De SF Gravity casting(GC) 121.5±23.04 0.54±0.18 Still cooling Slope(CS) 63.7±17.29 0.66±0.12 Vibrating cooling slope(VCS) 33.8±8.75 0.7±0.14 The quantitative data presented in Table 2 also confirm the refinement of Mg2Si particles (about 50%) in the CS processed sample as compared with gravity casting.
It can be seen that, as compared with gravity casting, about 70% reduction in the size of Mg2Si particles was obtained when the cooling slope was vibrated during the process.
Online since: December 2024
Authors: Sofyana Sofyana, M. Dani Supardan, Abrar Muslim, Fuan Maharani, Radika Putri, Nasrul Arahman
Flux reduction poses a significant challenge for most hydrophobic membranes, leading to a shortened membrane lifespan, diminished selectivity, and escalated operational and energy expenses.
The CNC liquid and membrane fragments were placed on the surface of a Zinc Selenide (ZnSe)-based crystal, and data were recorded in transmission mode.
This reduction in the water contact angle could be attributed to the enhanced hydrophilicity imparted by CNC on the membrane surface, owing to the presence of hydroxy groups on CNC, as corroborated by the FTIR results.
Online since: July 2015
Authors: Lung Tsai, Yan Cherng Lin, Chun Ho Liu, A Cheng Wang
Table 2 Setting levels of controlling factors Level 1 Level 2 Level 3 Abrasives: (A) Al2O3 SiC Mesh no. of abrasive: (B) #2000 #4000 #6000 Mesh no. of SG: (F) #45 #70 #100 Rotation rate (rpm): (C) 700 1000 1300 Vibrating frequency (Hz): (D) 4 5 6 Current (A): (E) 1 2 3 Concentration of SG (wt%): (G) 0.5:1 1:1 1.5:1 Machining time (min): (H) 10 20 30 Experimental Procedures In this study, different kinds of magnetic abrasive gels to conduct the efficiencies of magnetic abrasive finishing on the SUS304 stainless steel tube; subsequently, on the basis of experimental data, the Taguchi method was performed to assess the optimal parameters and to investigate the changes of the surface roughness (SR) and the material removal (MR).
Given the reduction of the total experiments in MFGA, L18 orthogonal chart in the Taguchi method was performed to evaluate the characteristics of MFGA parameters.
The process of MAF can be greatly improved by utilizing the technique of MFGA, resulting in remarkable reduction of the surface roughness; moreover, the stability of the abrasive finishing is improved during processing as well. 2.
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