The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the exi...The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the existence of physiological triphasic patterns (including imbibition,activation and growth stages)in the germination and growth process. Nonequilibrium thermodynamics of the germination and growth of seeds was considered under given conditions, and the thermodynamic functions of the germination and growth of seeds were calculated.展开更多
A non-damage method for measuring local tissue blood perfusion rate by surface heat disturbance and its two particular embodimellts for realizing this measurement are presented in this paper. In derivation of the math...A non-damage method for measuring local tissue blood perfusion rate by surface heat disturbance and its two particular embodimellts for realizing this measurement are presented in this paper. In derivation of the mathematic model, the Pennes equation is used, and two parameters-the arterial blood temperature Ta and the metabolic heat generation rate qm which are very difficult to be known their values have been eliminated. The effectiveness of the measurement method has been demonstrated by means of the quantitative measurement of tissue in vitro, the comparative measurement of animal under artificial perfusion and the dependence measurement in humam body.展开更多
The Dual Reciprocity Boundary Element Method (DRBEM) is extended to simulatethe thermal wave propagation in biological tissues. The higher the thermal relaxation timeis, the stronger the thermal wave effect will be. U...The Dual Reciprocity Boundary Element Method (DRBEM) is extended to simulatethe thermal wave propagation in biological tissues. The higher the thermal relaxation timeis, the stronger the thermal wave effect will be. Under changing heat source, bioheat trans-fer has distinct wave characters. The thermal wave propagation in biological tissues obeysthe superposition and resolution principle of ordinary wave. Reflected by a rigid wall’ (thefirst boundary condition), the thermal wave will show a phase jumping phenomenon. TheDRBEM is an efficiellt pure boundary iotegral method without domain integral for solvingthermal wave problems. Thermal wave and their refiection, phase jumping, superposition,resolution can be correctly located and sharply captured. There are no the oscillatory behav-ior in the wave front and wave peak region, which is presented in reported finite differencesolution with TVD high accuracy scheme.展开更多
文摘The thermograms of the germination and growth of rice and tree seeds were determined and studied by using a newly constructed microcalorimeter build in this laboratory at Wuhan University. The thermograms show the existence of physiological triphasic patterns (including imbibition,activation and growth stages)in the germination and growth process. Nonequilibrium thermodynamics of the germination and growth of seeds was considered under given conditions, and the thermodynamic functions of the germination and growth of seeds were calculated.
文摘A non-damage method for measuring local tissue blood perfusion rate by surface heat disturbance and its two particular embodimellts for realizing this measurement are presented in this paper. In derivation of the mathematic model, the Pennes equation is used, and two parameters-the arterial blood temperature Ta and the metabolic heat generation rate qm which are very difficult to be known their values have been eliminated. The effectiveness of the measurement method has been demonstrated by means of the quantitative measurement of tissue in vitro, the comparative measurement of animal under artificial perfusion and the dependence measurement in humam body.
文摘The Dual Reciprocity Boundary Element Method (DRBEM) is extended to simulatethe thermal wave propagation in biological tissues. The higher the thermal relaxation timeis, the stronger the thermal wave effect will be. Under changing heat source, bioheat trans-fer has distinct wave characters. The thermal wave propagation in biological tissues obeysthe superposition and resolution principle of ordinary wave. Reflected by a rigid wall’ (thefirst boundary condition), the thermal wave will show a phase jumping phenomenon. TheDRBEM is an efficiellt pure boundary iotegral method without domain integral for solvingthermal wave problems. Thermal wave and their refiection, phase jumping, superposition,resolution can be correctly located and sharply captured. There are no the oscillatory behav-ior in the wave front and wave peak region, which is presented in reported finite differencesolution with TVD high accuracy scheme.
