Medical Infrared Imaging Technology is a result combined with medical technologies,infrared imaging technologgies,and computer Multimedia Technologies.It is an imaging instrument to record the thermal field of human b...Medical Infrared Imaging Technology is a result combined with medical technologies,infrared imaging technologgies,and computer Multimedia Technologies.It is an imaging instrument to record the thermal field of human body.Human body is a natural biological thermal source.Because of the differences of anatomical structures,organic metabolisms,blood circulations and nervous states,the temperatures at different positions of body are various and different thermal fields are formed.Through the optic electronic system,Infrared Imaging Technology makes the infrarewaves radiated from body being filtered,collected,modulated,and optoelectronic transferred to become as electric signals.The electric signals will be turned to digital signal via A/D conversion and then treated with multimedia image treatment technologies to display the thermal field fo body as pseudo-color thermal images.The body’s normal state will show the normal thermal images,while the abnormal body will show the abnormal thermal images.Comparing the two kinds of images and combining the clinical observation,we can diagnoses and deduce the characters and level of diseases.展开更多
Black carbon （BC） aerosol, accounting for a minor fraction of atmospheric aerosols, is attracting increased attentio1 due to its impact on air quality, human health, and climate change. Focusing on BC emission reduc...Black carbon （BC） aerosol, accounting for a minor fraction of atmospheric aerosols, is attracting increased attentio1 due to its impact on air quality, human health, and climate change. Focusing on BC emission reduction, this paper give1 a brief introduction to the sources and global distribution of BC. Along with the decrease of BC emissions from sue1 actions as the reduction of global greenhouse gases （GHGs） and regulating local air quality, it also highlights othet BC reduction approaches such as control and improvement of combustion conditions, the elimination of open biomas burning, and the sequestration of BC by biomass pyrolysis. Finally, it is stressed that at this moment there is no enougt reason to push BC reduction into any climate change related negotiations, although BC has been included in some o so-called win-win reduction targets for the quick response to both climate and non-climate appeals.展开更多
The human basal state,a non-equilibrium steady state,is analysed in this paper in the light of the First and Second Laws of Thermodynamics whereby the thermodynamic significance of the basal metabolic rate and its dis...The human basal state,a non-equilibrium steady state,is analysed in this paper in the light of the First and Second Laws of Thermodynamics whereby the thermodynamic significance of the basal metabolic rate and its distinction to the dissipation function and exergy loss are identified.The analysis demonstrates the correct expression of the effects of the blood flow on the heat balance in a human-body bio-heat model and the relationship between the basal metabolic rate and the blood perfusion.展开更多
文摘Medical Infrared Imaging Technology is a result combined with medical technologies,infrared imaging technologgies,and computer Multimedia Technologies.It is an imaging instrument to record the thermal field of human body.Human body is a natural biological thermal source.Because of the differences of anatomical structures,organic metabolisms,blood circulations and nervous states,the temperatures at different positions of body are various and different thermal fields are formed.Through the optic electronic system,Infrared Imaging Technology makes the infrarewaves radiated from body being filtered,collected,modulated,and optoelectronic transferred to become as electric signals.The electric signals will be turned to digital signal via A/D conversion and then treated with multimedia image treatment technologies to display the thermal field fo body as pseudo-color thermal images.The body’s normal state will show the normal thermal images,while the abnormal body will show the abnormal thermal images.Comparing the two kinds of images and combining the clinical observation,we can diagnoses and deduce the characters and level of diseases.
基金co-supported by China 973 project of MOST(2011CB403401)China Postdoctoral Science Foundation(20080440463,200902157)
文摘Black carbon （BC） aerosol, accounting for a minor fraction of atmospheric aerosols, is attracting increased attentio1 due to its impact on air quality, human health, and climate change. Focusing on BC emission reduction, this paper give1 a brief introduction to the sources and global distribution of BC. Along with the decrease of BC emissions from sue1 actions as the reduction of global greenhouse gases （GHGs） and regulating local air quality, it also highlights othet BC reduction approaches such as control and improvement of combustion conditions, the elimination of open biomas burning, and the sequestration of BC by biomass pyrolysis. Finally, it is stressed that at this moment there is no enougt reason to push BC reduction into any climate change related negotiations, although BC has been included in some o so-called win-win reduction targets for the quick response to both climate and non-climate appeals.
文摘The human basal state,a non-equilibrium steady state,is analysed in this paper in the light of the First and Second Laws of Thermodynamics whereby the thermodynamic significance of the basal metabolic rate and its distinction to the dissipation function and exergy loss are identified.The analysis demonstrates the correct expression of the effects of the blood flow on the heat balance in a human-body bio-heat model and the relationship between the basal metabolic rate and the blood perfusion.
