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The Hong Kong Polytechnic University

3 ARTICLES PUBLISHED IN JoVE

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Chemistry

TiO2-coated Hollow Glass Microspheres with Superhydrophobic and High IR-reflective Properties Synthesized by a Soft-chemistry Method
Yinting Wong 1, Dan Zhong 2, Aotian Song 4, Yan Hu 3
1Department of Biomedical Science, City University of Hong Kong, 2Technological and Higher Education Institute of Hong Kong, 3Hong Kong Polytechnic University, 4Pavotech Co. Ltd.

This manuscript proposes a soft-chemistry method to synthesize superhydrophobic, TiO2-coated hollow glass microspheres (HGM) with high IR-reflective properties.

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Engineering

An Available Technique for Preparation of New Cast MnCuNiFeZnAl Alloy with Superior Damping Capacity and High Service Temperature
Dong Li 1,3, Wenbo Liu 1,2, Ning Li 1, Zhenyu Zhong 1, Jiazhen Yan 1, Sanqiang Shi 2
1School of Manufacturing Science and Engineering, Sichuan University, 2Department of Mechanical Engineering, Hong Kong Polytechnic University, 3Department of Mechanical and Electrical Engineering, Chengdu Aeronautic Polytechnic

Here we present a protocol to obtain a novel Mn-Cu-based alloy with excellent comprehensive performances by a high-quality smelting technology and reasonable heat treatment methods.

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JoVE Core

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
Lu Shen 1, Zong-nan Chen 1, Chihyung Wen 1
1Department of Mechanical Engineering, Hong Kong Polytechnic University

Here, we present a protocol to observe unsteady vortical flows over a delta wing using a modified smoke flow visualization technique and investigate the mechanism responsible for the oscillations of the leading-edge vortex breakdown locations.

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