Au Apparatus for Differential Thermal Analysis

Scaling analysis of negative differential thermal resistance.

Negative differential thermal resistance (NDTR) can be generated for any one-dimensional heat flow with a temperature-dependent thermal conductivity. In a system-independent scaling analysis, the general condition for the occurrence of NDTR is found to be an inequality with three scaling exponents: n(1)n(2) < -(1+n(3)), where n(1) ∈ (-∞,+∞) describes a particular way of varying the temperature ...

Mathematical model of integrated thermal apparatus

Mathematical model for the integrated thermal apparatus was developed. It consists of program modules from which individual furnace model can be generated. For the model generation elementary balance method was used. Generation of the individual model includes model formulation and parameters determination. Model formulation is based on first principles, heuristics and empirical results. Parame...

Thermal calibration procedure for internal infrared laser deflection apparatus

Apparatus for low temperature thermal desorption spectroscopy of portable samples.

An experimental setup for low temperature thermal desorption spectroscopy (TDS) integrated in an ultrahigh vacuum-chamber housing a high-end scanning probe microscope for comprehensive multi-tool surface science analysis is described. This setup enables the characterization with TDS at low temperatures (T > 22 K) of portable sample designs, as is the case for scanning probe optimized setups or ...

Thermal Field Analysis for In Vitro Exposure Apparatus in Rectangular Waveguide with Transversal Slits

Numerical studies are performed on the temperature distribution in a microwave exposure setup for in vitro study. The setup is a waveguide with slits, on which a cell culture dish is placed to be exposed to 2.45 GHz microwaves. The maximum SAR is 50 W/kg at the location of cells for the input power of 0.7 W. We analyse the spatial and temporal characteristics of the thermal field in the exposur...