 In high-population density areas, noise pollution due to human activities is everywhere. Tranquility becomes a luxury to the few while it seems to be forever lost to the unfortunate many. The reason that many people cannot escape from noise pollution is simple. Noise is a sound wave that can go through conventional thin walls very easily. Much thicker walls are needed in order to block the noise, but most people, as you know, cannot afford such thick walls in their homes. Now, we at Hong Kong University of Science and Technology have invented a noise shield panel, although light and thin, can stop the vibration of thin walls to block noise like thick walls. It can stand alone or as flexible as a curtain. What's made of the panels is remarkably simple. It consists of a frame and a membrane and some platelets. Assembled, we have a membrane fixed on the frame and decorated by some platelets. Now, the platelets vibrating on the membrane acting as a so-called local resonators, which are the basic units of our platform technology. When the noise excites the local resonators, its energy is greatly dissipated. Now, no exotic materials are needed. All we need is just conventional materials. For example, plastic wraps or aluminum foil that we use in the ordinary kitchen or rubber sheet that are used for surgical gloves that can be the membrane. The frame can be just hard plastic or any metal, and the platelets just be anything rigid. Now, active kids upstairs, loud music from next doors. Noisy neighbors are really annoying. Now, with our noise shield panels, now you can live in peace and quiet. Construction sites are major sources of noise, as you know. In such situations, conventional noise barriers are rarely used because they are too thick and heavy, so it's not very practical. It seems that there's nothing we can do in most cases, not anymore. We have proposed some solutions. For air compressors and diesel power generators, because our panels are very light and thin, they can be assembled easily as the noise enclosures to cover the noise source. When it's done, it can be disassembled and stored away. For hammering piling machines, we propose to use our flexible noise shields, which can be rolled down like curtains to shield the hammer and then roll up again and move to elsewhere when one pole is done. Now, conventional noise barriers along highways block the flow of air, so also the emission of cars and trucks. Now, our barriers are as effective as the conventional ones, but allowing plenty of airflow. Now, ground vibrations due to heavy trucks and trains and even earthquakes can also be shielded from targeted buildings. If you extend the ideas further, an entire city could be protected by a belt of our local resonators. Now, underwater piling actually generates tremendous impulses that can kill marine mammals. In this case, we propose our underwater noise shields, which can be rolled down like this and it can offer much better solutions than the existing ones, which are usually heavy and bulky and hard to use. Now, wherever you have noise problems in all these areas, there are opportunities for our technology platform. With a wide range of choices of materials, our panels can shoot extreme conditions, for example, high temperature, low temperature, high velocity, or even in outer space. The so-called locally resonant elastic matter materials is a technology platform fully owned by HKUST. Everything we talked about, we invented here at HKUST. With that knowledge, we can bring back tranquility to hundreds of millions of people. Thank you.