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RISConditions for Equivalency of Countercurrent Vessel Heat Transfer Formulations
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Previous models of countercurrent blood vessel heat transfer have used one of two, different, equally valid but previously unreconciled formulations, based either on: (1) the difference between ...
Skin Temperature Probe
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A probe which is capable of applying known, controlled pressures to the skin, and measuring the subsequent tissue deflections and skin surface temperatures has been designed and tested. This ...
The Effect of Pressure on Skin Temperature Measurements for a Disk Sensor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In order to determine the effect of application pressure on the accuracy of skin temperature measurements for area contact sensors, low values of pressure (2-20 mm Hg) were applied to the ...
A Generic Tissue Convective Energy Balance Equation: Part I—Theory and Derivation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new equation for calculating temperatures in living tissues, the tissue convective energy balance equation (TCEBE), is derived using only a few assumptions. The resulting equation is basic, ...
Reconstruction of Experimental Hyperthermia Temperature Distributions: Application of State and Parameter Estimation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Subsets of data from spatially sampled temperatures measured in each of nine experimental heatings of normal canine thighs were used to test the feasibility of using a state and parameter ...
A Semilinear State and Parameter Estimation Algorithm for Inverse Hyperthermia Problems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An improved state and parameter estimation algorithm has been developed which decreases the total computational time required to accurately reconstruct complete hyperthermia temperature fields. ...
Multiple Minima in Inverse Hyperthermia Temperature Estimation Problems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Using one-, two-, and three-dimensional numerical simulation models it is shown that multiple minima solutions exist for some inverse hyperthermia temperature estimation problems. This is a new ...
A Direct Substitution, Equation Error Technique for Solving the Thermographic Tomography Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A new technique for solving the combined state and parameter estimation problem in thermographic tomography is presented. The technique involves the direct substitution of known skin temperatures ...
A Comparative Evaluation of Unconstrained Optimization Methods Applied to the Thermal Tomography Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In cancer hyperthermia treatments, it is important to be able to predict complete tissue temperature fields from sampled temperatures taken at the limited number of locations allowed by clinical ...
Comparison of the Adjoint and Influence Coefficient Methods for Solving the Inverse Hyperthermia Problem
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An adjoint formulation is derived and used to determine the elements in the Jacobian matrix associated with the inverse problem of estimating the blood perfusion and temperature fields during ...