For all measurements (UV-Vis and electrochemistry), the unmodified SiNPs were used as received and diluted to the desired concentration with ultrapure water from Millipore featuring a resistivity of not less than 18.2 MΩ.cm. The following procedure was used for modifying the SiNP with catalase: 79.5 L of SiNPs were added to 119.7 L of water. Next, 20 L of bovine catalase from stock solution ...

Abstract Nanofluids, which are suspensions of nanoparticles in base fluids, have gained significant attention recent years due to their enhanced thermal and electrical properties. In particular, propylene glycol-water nanofluids been extensively investigated for The primary goal this study is evaluate the characteristics containing graphene powder distributed glycol-water. Compositions 100:0, 7...

In this study, surface resistivity of the non-proprietary ultra-high-performance concretes (UHPCs) using traditional aggregates were evaluated. Four plain UHPCs batched various cementitious materials at a constant water-to-cementitious ratio 0.21 with an aggregate-to-cementitious 1.20. The 28-day surface-resistivity was measured for duration 60 minutes (10 intervals). influence testing time on ...

The probability tomography approach developed for the scalar resistivity method is here extended to the 2D tensorial apparent resistivity acquisition mode. The rotational invariant derived from the trace of the apparent resistivity tensor is considered, since it gives on the datum plane anomalies confined above the buried objects. Firstly, a departure function is introduced as the difference be...

In hydrocarbon reservoirs, the accuracy of saturation depends on precision water and resistivity (Sw Rw). A significant interpretation parameter is formation (interstitial or connate which is, uncontaminated by drilling mud that saturates porous rock) because it appropriate for calculations (water and/or hydrocarbon) from basic logs. The most reliable way to determine this value through determi...

The formation resistivity factor evaluation of brine-filled reservoir rock is an essential part of electrical resistivity log interpretation in petroleum exploration. Empirical relations such as Archie’s law are widely employed to model the relationship between the formation resistivity factor and porosity. Historically, the Archie cementation exponent has been obtained from experimental labora...

The Schlumberger and Wenner Electrical Resistivity Survey techniques have been used in comparison for the determination of groundwater potential District Rawalakot, Azad Jammu Kashmir. terameter SAS4000 with accessories was data acquisition. were processed by employing IPI2WIN software to determine depth, thickness true resistivity subsurface layers. present study indicated depth coverage confi...

This paper discusses modeling of non-uniform substrate resistivity for substrate resistance extraction. Though substrate resistivity of each substrate layer is frequently assumed to be uniform, doping profile of each substrate layer is not uniform. We present the extraction error of substrate resistance under uniform resistivity assumption. The resistivity models we suggest enable accurate resi...

This is a general review of anomalous resistivity with emphasis on its applicability in space and more specifically on ionospheric plasmas. It is addressed to the general ionospheric community rather than the specialist. Therefore a substantial amount of rigor has been sacrificed in favor of simplified physical pictures. However, several prescriptions are presented, on the basis of which one ca...