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| 1 | A Study on the Effect of Low Calcium Ultra-fine Fly Ash as a Partial Sustainable Supplementary Material to Cement in Self-compacting Concrete显示文摘The aim and scope of the present study were to determine the efficacy of UFFA in evaluating the workability,static and dynamic stabilization properties,retention period,and slump loss of SCC systems in their fresh state,as well as their compressive strength at various ages.Microstructure(SEM and XRD)of blended SCC systems were studied.Also,the thermogravimetry behavior of blended SCC specimens were researched.According to the evaluated results,incorporating up to 20%UFFA into fresh concrete improved its performance due to its engineered fine particle size and spherical geometry,both of which contribute to the enhancement of characteristics.Blends of 25%and 30%of UFFA show effect on the water-binder ratio and chemical enhancer dosage,resulting in a loss of homogeneity in fresh SCC systems.The reduced particle size,increased amorphous content,and increased surface area all contribute to the pozzolanic reactivity of the early and later ages,resulting in denser packing and thus an increase in compressive strength.The experimental results indicate that UFFA enhances the properties of SCC in both its fresh and hardened states,which can be attributed to the particles’fineness and their relative effect on SCC. | Adapala Sunny Suprakash Karthiyaini S | 2023 | Journal of Wuhan University of Technology(Materials Science)2023，38，2： | 2 |
| 2 | The minimum positionalerror incurred by any connectivity-based positioning algo-rithm for mobile wireless systems 显示文摘 | Stuart MacLean Suprakash Datta | 2011 | Theoretical Comput-er Science2011，412，50： | 1 |
| 3 | Lubrication of dry sliding metallic contacts by chemically prepared functionalized graphitic nanoparticles显示文摘Understanding the mechanism of precision sliding contacts with thin, adherent solid nano lubricating particle films is important to improve friction and wear behavior and ensure mechanical devices have long service lifetimes. Herein, a facile and multistep approach for the preparation of graphene oxide (GO) is presented. Subsequently, surface modification of as-synthesized GO with octadecyl amine (ODA) is performed to prepare hydrophobic GO-ODA and with 6-amino-4-hydroxy-2-naphthalenesulfonic acid (ANS) to prepare amphoteric GO-ANS through a nucleophilic addition reaction. X-ray diffraction and ultraviolet-visible, Fourier transform infrared, and Raman spectroscopy provide significant information about the reduction of oxygen functionalities on GO and the introduction of new functionalities in GO-ODA and GO-ANS. The effects of particle functionalization for the improved control of particle adhesion to the tribocontact have been studied. Wettability and thermal stability were determined using the water contact angle, and atomic force microscopy and differential scanning calorimetry (DSC) were used to characterize particle adhesion to the tribocontact. The tribological performances of the particles have been investigated using macro- and micro-tribometry using pin/ball-on-disc contact geometries. The influence of particle functionalization on the contact pressure and sliding velocity was also studied under rotating and reciprocating tribo-contact in ambient conditions. With an increase in the contact pressure, the functionalized particles are pushed down into the contact, and they adhere to the substrate to form a continuous film that eventually reduces friction. Amphoteric GO-ANS provides the lowest and most steady coefficient of friction (COF) under all tested conditions along with low wear depth and minimal plastic deformation. This is because particles with superior wetting and thermal properties can have better adherence to and stability on the surface. GO-ANS has a superior ability to adhere on the track to form a thicker and more continuous film at the interface, which is investigated by field emission scanning electron microscopy, energy dispersive spectroscopy, and Raman analysis. | Suprakash SAMANTA Santosh SINGH Rashmi R.SAHOO | 2020 | Friction2020，8，4： | 1 |
| 4 | Efficacy of amisulpride and olanzapine for negative symptoms and cognitive impairments: An open-label clinical study显示文摘 | Subodh Kumar Suprakash Chaudhury | 2014 | Industrial Psychiatry Journal2014，，1： | 1 |
| 5 | A fast DFT based gene predic- tion algorithm for identification of protein coding re- gion显示文摘 | Suprakash D Amis A | 2005 | International Conference on Acoustics Speech and Signal Processing2005，5，2： | 1 |
| 6 | Interaction effect of potassium and sulfur fertilization on productivity and mineral nutrition of sunnhemp 显示文摘 | Suprakash Saha Monidipta Saha Amit Ranjan Saha | 2013 | Journal of Plant Nutrition2013，36，8： | 1 |
| 7 | Erratum to:Lubrication of dry sliding metallic contacts by chemically prepared functionalized graphitic nanoparticles显示文摘Erratum to Friction 8(4):708-725(2020)DO110.1007/s40544-019-0295-1 The original version of this article unfortunately contained incorrect author's name and address.On the first page of this article,instead of Suprakash SAMANTA1,2,Santosh SINGH1,Rashmi R.SAHOO1,2,*Surface Engineering&Tribology Division,CSIR-Central Mechanical Engineering Research lnstitute,Durgapur 713209,India Academry of Sciertific ard Iovative Research(AcSIR),Ghaziabad 201002,India. | Suprakash SAMANTA Santosh Kumar SINGH Rashmi R.SAHOO | 2020 | Friction2020，8，4： | 0 |
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