Qingzhi Lai

• Doctor of Engineering
• Harbin Institute of Technology at Weihai

The temperature characteristics of the thermal wakes are important signals for the infrared remote sensing detection of underwater vehicles. In this work, the surface thermal signatures and buoyancy law of submerged thermal wakes were studied. The influence of the exit speed and underwater depth on the surface temperature distribution is investigat...

The boiling heat transfer efficiency in smooth surface can no longer meet the high-power equipment heat dissipation requirements. By changing the surface roughness and pulse heating conditions, we can have higher boiling bubble nucleation point density to achieve higher heat transfer efficiency. However, the influencing mechanism of the surface rou...

Thermal management serves a crucial role in the stable operation of electronic equipment due to its miniaturization and functionality. Enhancing radiation heat transfer through heat dissipation coating is an effective method to improve the heat dissipation performance of electronic devices in thermal management of narrow space. In this paper, we em...

Among various energy-storage technologies, metal-air batteries are gaining more and more attention since they have super-high-energy density. However, the low rate capacity, poor circularity, and instability of metal-air batteries need to be addressed before they can be implemented in practice. The mass transfer in air cathodes is worth investigati...

Reflection characteristics play a critical role in identifying, assessing, and responding to different types of oil spills. In this paper, we prepared three concentrations of oil-in-water (OW) emulsions and measured their directional reflection properties in the visible and near-IR range. The spectral differences in reflectance between OW emulsions...

The complex refractive index of crude oils is an essential parameter for the study of radiative properties, which has important and wide applications in remote sensing analysis and identification of oil pollution. In this paper, a combined Brewster–transmission method for determining the complex refractive index was proposed. The method has a good...

Nanoporous self-ordered anodic aluminum oxide (AAO) film has shown great promise for applications in passive radiative heat dissipation due to its high infrared thermal emissivity and its good economic efficiency for mass production. However, the passive radiative cooling mechanism of AAO is not yet fully understood. In this study, the finite-diffe...

Bidirectional reflectance distribution function (BRDF) has important and extensive applications in remote sensing. The polarized light field is certainly promising for it has the capacity of transmitting more information. In this study, total and polarized BRDF in visible and near-infrared bands of three crudes and pure water were measured through...

The directional reflection characteristics of fabrics with various texture structures is an important and challenging topic in computer graphics and visual simulation. In the present study, the Bidirectional Reflectance Distribution Function (BRDF) of four different textured fabrics is measured via a self-designed Scatterometry to analyze the effec...

The directional reflection characteristics of anisotropic surfaces play an important role in the precise modeling of radiative heat transfer and target detection. Nevertheless, the directional reflection characteristics of anisotropic machined surfaces have not been fully understood. In this work, an accurate automated scatterometer was built to in...

A packed bed of multilayered spherical particles plays a very important role in several engineering applications, such as the thermal insulation material of polystyrene foam and solar absorber for thermal energy conversion. In this study, we investigate the transmission of diffused beam in a one-dimensional densely packed bed. Spherical particles w...

The “blue–green window” in the ocean plays an important role in functions such as communication between vessels, underwater target identification, and remote sensing. In this study, the transmission process of blue–green light in the upper ocean is analyzed numerically using the Monte Carlo method. First, the effect of total number of photons on th...