The Hong Kong University of Science and Technology

Geneharbor (hong Kong) Biotechnologies Limited

Liang Sun

Ping Sheng

Zhiyu Yang

Guancong Ma

Min Yang

Songwen Xiao

Jun Wang

Dong Shen

Yau Lung Siu

Junming Chen

Wing Keung Eric Poon

The present invention provides an immobilized reaction device and a method for carrying out reaction by utilizing the immobilization technology. The immobilized reaction device includes a columnar reactor with an inlet and an outlet. The reactor is provided with an interior cavity which is defined by a top portion and a bottom portion opposite to each other, and a side wall connecting the top portion and the bottom portion.

Immobilized reaction device and a method for carrying out a reaction by utilizing the immobilization technology

A sound absorption panel () is constructed on an acoustically thin sheet () to provide an acoustic/vibrational energy absorption metamaterial structure. A plurality of dampers () are fixed to the acoustically thin sheet (), and at least a subset of said dampers () comprise a support () and a flexible membrane () supported by the support. The flexible membrane () has one or more masses or platelets () attached. The dampers () in combination with the sheet () result in absorption of energy of movement of the sheet () resulting from sound transmission or vibrations across the sheet.

Vibration damped sound shield

A substantially acoustically transparent planar, rigid frame divided into a plurality of individual, substantially two-dimensional cells is used to construct a sound absorption panel. A sheet of a flexible material is fixed to the rigid frame, and a plurality of platelets fixed to the sheet of flexible material such that each cell is provided with a respective platelet, thereby establishing a resonant frequency, establishing an increase in an absorption coefficient of the panel. The flexible material has a wrinkle or corrugation to permit distortion with reduced material elasticity. The wrinkle or corrugation permits the flexible material to distort beyond that afforded by a planar material of the same type, while retaining mechanical strength in supporting the plurality of platelets.

Acoustic and vibrational energy absorption metamaterials

An acoustic/vibrational energy absorption metamaterial includes at least one enclosed planar frame with an elastic membrane attached having one or more rigid plates are attached. The rigid plates have asymmetric shapes, with a substantially straight edge at the attachment to said elastic membrane, so that the rigid plate establishes a cell having a predetermined mass. Vibrational motions of the structure contain a number of resonant modes with tunable resonant frequencies.

Growing community of inventors

Hong Kong, China

Liang Sun