No. 86

February 2013

Headline News Innovation and Development

Applied Technology

Basic Science

Cooperation between CAS and Local Authorities

Bioscience International Cooperation Brief News Geoscience Hightlight Events

Cooperation between CAS and Local Authorities

The First 1MW Level Gas Turbine Developed in China

Recently, a key project in the advanced energy technology field “development of 1MW level micro gas turbine and its energy supply system” passed the national check-acceptance. It is the first 1MW level high performance gas turbine in China. This relevant research was officially launched in 2009, which was coordinated by the China National South Aviation Industry, but with the Institute of Engineering Thermophysics (IET), CASas its main design entity for the core engines, other institutions participated in the project include the China Aviation Power Machinery Research Institute, Beijing Institute of Technology and Tsinghua University. The IET research team, supervised by Prof. Tan Chunqing, had dedicated to the development of the core engine development in the past four years. Through their hard working, this team has mastered the key technologies of the main components’ design, testing and manufacture of 1MW level gas turbines. The power output of this gas turbine is 0.8 MW, which is embedded a three-rotor structure. It utilized such techniques as two-stage closed centrifugal compressor, annual reverse-flow combustor, high-low pressure gas turbine and adjustable guide vanes. The power output can be adjusted freely from zero to full load. This gas turbine enjoys a broad perspective of applications. It may be used for not only the distributed power generation, but also for vehicles and ships.

Series Progress Achieved in Design of Conjugated Polymers

In recent years, Prof. Wang Shu’s group at the Key Laboratory of Organic Solids of the Institute of Chemistry, CAS, has made a series of important research progress in the design of conjugated polymers for biomedical applications. They cooperated with the Beijing First Hospital using cationic conjugated polymer-based fluorescence resonance energy transferring to quantitatively analyze DNA methylation levels of seven colon cancer-related genes. Through a stepwise discriminant analysis and cumulative detection of methylation alterations, they acquired high accuracy and sensitivity for colon cancer detection in comparison to the single-methylation analysis. The cumulative analysis of promoter methylation alterations by the cationic conjugated polymer-based fluorescence resonance energy transfer may be useful for the screening and differential diagnosis of patients with colon cancer. These results have been published in Nature Communications 2012, 3: 1206). (Chem. Rev. 2012, 112, 4687-4735). Very recently, they published a review article in Chemical Reviews (Chem. Rev. 2012, 112, 4687-4735), in which the progress of conjugated polymers for imaging, diagnosis and therapy in recent five years is introduced, and the future development direction and existing challenges and opportunities are also prospected.


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