This paper presents an effective approach to significantly improve the electrical properties and recovery performance of shape memory polymer (SMP) nanocomposites that are able for Joule heating triggered shape recovery. Reduced graphene oxide (GO) is self-assembled and grafted onto the carbon fibers to enhance the interfacial bonding with the SMP matrix via van der Waals and covalent crosslink...

In this work, the temperature effects due to Joule heating obtained by application of a direct current electric potential were investigated for a microchannel with cylindrical insulating posts employed for insulator-based dielectrophoresis. The conductivity of the suspending medium, the local electric field, and the gradient of the squared electric field, which directly affect the magnitude of ...

BACKGROUND There is extensive evidence that electrosurgical current application increases hemorrhage when compared with "cold" dissection and hemostasis. The way that the "hot" technique is used may influence the outcome decisively. METHODS Temperature-time functions were measured in distances of 3 to 12 mm underneath the surface at which bipolar electrosurgical current was applied. Measureme...

Article history: Received 8 January 2010 Received in revised form 9 March 2010 Accepted 2 April 2010 Available online 10 April 2010 Communicated by R. Wu A method for predicting the joule heating using Monte Carlo simulation for the electron dynamics is proposed. The joule heating in (10,10) carbon nanotubes is computed. The full energy band is utilized; however the results show that for low te...

This study uses the Joule heating effect-generated temperature difference to monitor in real-time and localize both compressive and tensile strains for the polymer substrates used in the roll-to-roll process. A serpentine gold (Au) line was patterned on a polyethylenenaphthalate (PEN) substrate to form the strain sensor based on thermoresistive behavior. This strain sensor was then subjected to...

The design of an electrical conductivity measurement channel for a shock tube is described. This measurement channel is used for the study of weakly ionized, high-enthalpy flows of gases seeded with alkali salts. The theory for determining the dimensions of the measurement channel and the electrical power supply for the channel is based on Ohm’s law. Data are shown which demonstrate that the ch...

We analyze heat transfer characteristics of steady electroosmotic flows with an arbitrary pressure gradient in two-dimensional straight microchannels considering the effects of Joule heating in electroosmotic pumping. Both the temperature distribution and local Nusselt number are mathematically derived in this study. The thermal analysis takes into consideration of the interaction among advecti...

WC introduce a new technique for rapidly heating (10’ “C/s) thin films using an electrical thermal annealing (ETA) pulse technique. By applying a high-current dc electrical pulse to a conductive substrate-heater material (Si), joule heating occurs thus heating the thin film. This method was demonstrated by heating thin films of aluminum at rates ranging from lo3 to lo6 “C/s. The temperature of ...