In some situation, we need some special things to add weight in sailboat. But the space for the special things usually very small. For example, the sailboats, if the sailboats weight is not enough, it can turn turtle easily, especially when moving in a wind weather. So, we need add some tungsten alloy counterweights into the sailboats to against the yawing when sailing forward.

Tungsten carbide alloy has special corrosion resistance, high hardness and compressive strength. It is called modern industrial teeth and plays an extremely important role in machinery, metallurgy, precision instruments and military industries.

Cesium tungsten bronze (Cs0.33 WO3) nano powder is a new functional materials, which has strong absorption and high transmittance ability in near infrared region (800-1200nm wavelength) and the visible region (380-780nm wavelength). It can be used as infrared transparent barrier.

Biomass is a renewable resource with abundant reserves, wide distribution, low price and carbon fixation function. It has the potential to replace fossil resources to produce hydrocarbon fuels and chemical products. In recent years, studies have found that biomass such as lignocellulose is mainly composed of cellulose, hemicellulose and lignin. After pretreatment, carbohydrate raw materials such as cellulose and glucose can be obtained, which can be used to produce high value-added chemicals and organisms’ oil.