Keynote Speaker

Prof. Hong Qi, Harbin Institute of Technology, China

Title: Integrated technology of biological photothermal precise diagnosis and treatment based on multifunctional nanoparticles

Abstract: According to the data released by WHO in 2019, the incidence rate and mortality rate of cancer worldwide are still rising rapidly. Cancer has become an important threat to human health. Early diagnosis and treatment are very important to improve the survival rate of cancer patients. Traditional diagnostic methods, including CT, MRI and other technologies, have the disadvantages of expensive equipment, inconvenient to carry and radiation damage to human body. Conventional treatment, such as surgery, chemotherapy and radiotherapy, has the disadvantages of trauma, side effects, recurrence, and even some cases can not be operated. In order to overcome the technical obstacles of traditional diagnosis and treatment methods, the potential targeted precise diagnosis and treatment technology has been developed. The diagnosis is fast and accurate, low cost and no side effects, while the treatment has the advantages of small damage, wide application and small side effects, which has been supported by the United States, China and other countries. Meanwhile, nanotechnology has been developed in an all-round way in recent years, especially in the biomedical field. The diagnosis and treatment technology based on micro-nano particles has been widely concerned because of its accuracy and efficiency. Here, the integrated research of photothermal diagnosis and treatment of biological tissue with multifunctional nanoparticles as contrast agent / hyperthermia agent is introduced. In the aspect of diagnosis, it mainly includes: theory and experiment of diffuse light tomography in biological tissue, fluorescence imaging method, and biological tissue imaging method based on time-frequency light information fusion. In terms of photothermal therapy, it mainly includes: the mechanism and regulation of photothermal transformation of plasmonic nanoparticles in biological tissues, the mechanism and model of photothermal transformation and transmission of biological tissues containing nanoparticles, and the precise and rapid regulation of temperature in the target area of hyperthermia.


A.Prof. Gangtao Liang, Dalian University of Technology, China

Title: Microscale Heat Dissipation Surface for High-Heat-Flux Cooling

Abstract: Aggressive developments of high-heat-flux devices (e.g., advanced computer chips, spacecraft electronics, hybrid vehicle power electronics and fuel cells) and ultra-high-heat-flux devices (e.g., particle accelerators, rocket nozzles, fusion reactors, radar systems, and laser weapons) have incapacitated the conventional fan-cooled and various single-phase cooling techniques.  Instead, two-phase cooling, i.e., boiling, which utilizes liquid/vapor phase-change latent heat in combination with temperature-rise sensible heat, shows its great advantages in tackling these above-mentioned cooling concerns. This keynote lecture will report pool boiling heat transfer enhancement on the micro-pit surfaces.  Microscale pits fabricated on plain surface are able to reduce boiling incipience superheat, and improve both nucleate boiling heat transfer coefficient and critical heat flux (CHF).  Boiling enhancement magnitudes have a weak dependence on the micro-pit diameter, but increase monotonously with decreasing the pit depth.  There exists an optimum pit-to-pit spacing for the maximum boiling enhancements, which is virtually identical to bubble departure diameter, and estimated using the capillary length.  The major mechanism behind is that this spacing is favorable for alleviating hydrodynamic instabilities induced by the counterflow between liquid inflow and vapor outflow.  The highest heat transfer coefficient and CHF using water as fluid under the present conditions are 70.0 kW/m2K and 165.7 W/cm2, improved by 58.8% and 33.7% compared to the plain surface, respectively.

Important Dates

Submission Deadline: November 20, 2020 January 5, 2021

Registration Deadline: January 7, 2021

Conference Date: January 15-17, 2021

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