Government regulations to address technological risks are important for the successful development and application of nanotechnology, but there is an ongoing debate in the USA about who is responsible for the regulation of nanotechnology. In a mail survey of leading US nano-scientists, we examine scientists’ perceptions about nano-regulation, including the government level (local, national, or ...

This work investigates the machining characteristics of American Iron and Steel Institute (AISI) D2 tool steel with copper as a tool electrode during electrical discharge machining (EDM) process. The multi wall carbon nano tube (MWCNT) is mixed with dielectric fluids in EDM process to analyze the surface characteristics of surface roughness. Regression model were developed to predict the surfac...

Nanofluid connotes a colloidal suspension with dispersed nano-sized particles. Experiments in the past decade reveal that nanofluids have a significantly higher thermal conductivity in comparison to that of the base fluid. Recently, a number of phenomenological models have been proposed to explain the anomalous heat transfer enhancement seen in nanofluids. In this paper, we make a systematic su...

In recent years, the need for eco-friendly machining processes has increased dramatically in order to limit excessive use of conventional cutting fluids, thereby reducing their negative effects on both environment and operator’s health. this context, environmental alternatives such as dry cutting, minimum quantity lubrication (MQL), nanofluid-assisted MQL have been demonstrated be effective ove...

The suspension of different nanoparticles into various conventional thermal fluids to synthesize nanofluids has been proven possess superior thermal, optical, tribological, and convective properties, the heat transfer performance over fluids. This task appears trivial but is complicated significant nanofluid synthesis its subsequent utilization in diverse applications. stability mono hybrid sig...

objective: maintaining the health of oral tissues is a major goal in dentistry. however, limitations in dental materials, instruments, procedures and medications prevent achievement of this goal. advances in nanotechnology have paved the way to approach this goal. this study reviews the advances on nanotechnology in dentistry. review of literatures: in this review study, google scholar, pubmed,...

We study the properties of a hard-sphere dense gas near the hard walls of micro and nano-channels. Analytical techniques, Monte Carlo (MC) methods and molecular dynamics (MD) simulation methods have been used to characterize the influence of the characteristic parameters such as number density, reduced density, width of the system and molecular diameter, on the equilibrium properties of the gas...

As the continuing integration and size deflation of component dimensions in electronic circuits increase number transistors modern microprocessor chips, especially for heat dissipation micro/nano scale devise, traditionally used single phase fluid cannot meet requirements highly efficient transfer, which thus frequently results damage electrical devices. Consequently, thermal conductivity enhan...