In this paper, the heat transfer performances of aluminum metal foams, placed on horizontal plane surface, was evaluated in forced convection conditions. Three different types of contacts between the sample and the heated base plate have been investigated: simple contact, brazed contact and grease paste contact. First, in order to perform the study, an ad hoc experimental set-up was built. Seco...

Improving the power handling capability of direct contact RF MEMS switches requires a knowledge of conditions at the contact. This paper models the temperature rise in a direct contact RF MEMS switch, including the effects of electrical and thermal contact resistance. The maximum temperature in the beam is found to depend strongly on the power dissipation at the contact, with almost no contribu...

This paper evaluates the added resistance of a torpedo shape AUV, moving inside a water pipeline, due to wall effects within the tube. Today, there are long length pipelines of water or petroleum that need to regular inspection. Early detection of failure will help to prevent breakdown and avoid the huge cost of an accident. As pipelines are enclosed environments and difficult to access, pipeli...

Capacitive deionization (CDI) is a promising desalination technology, which operates at low pressure, low temperature, requires little infrastructure, and has the potential to consume less energy for brackish water desalination. However, CDI devices consume significantly more energy than the theoretical thermodynamic minimum, and this is at least partly due to resistive power dissipation. We he...

Contact behavior of thermal flying height control sliders and interfacial temperature rise upon head disk contact is investigated utilizing the resistance change of the read and write element. To achieve contact, the heater element of a TFC slider is energized with constant and square wave input profiles. To estimate the temperature rise during head disk contact, the resistance change of the re...

Reduction in contact size via scaling leads to an increase in parasitic contact resistance, which can be a limiting factor in aggressively scaled high-frequency transistors. Using numerical modelling, we predict that nanoscale topography at the metal/semiconductor interface can reduce the effective specific contact resistance by 25% or more using features 10 nm or less in width, even for doping...

In this study, metal contact on p-type SiC with low specific resistance was developed using TiAl. Using fine-tuned TiAl deposition and annealing conditions SiC, the Ti–Si–C interfacial layer grown high temperature ion implanted $\text{P}^{+}$ </inline-...

When standard leads or ordinary prncordial leads are taken with a string galvanometer electro-cardiograph, the resistance of the patient can be measured for each lead. However, no method has been described previously by which the resistance at any of the extremities or at any point on the body can be measured. A method for doing this is described below. Principle. When the standard leads are ta...