Arsenic-tolerant mutant of thiobacillus ferrooxidans and high temperature-tolerating thermoacidophilic archae were combined to bioleach high arsenic-bearing copper concentrate(As 4%～5%,Cu>20%) which contains tennantite mainly.

Study on mechanical properties of moderate temperature curable and solvent-free epoxy resin binder;

A moderate temperature Zn-Ca phosphating technology was developed and successfully used for automobile wheel rims.

By a series of pulsating cyclic tests of 16MnR steel under stress control at elevated temperature,transformation laws of the damage variable were measured at different maximum stresses at.

By low cycle fatigue experimentation of 16MnR under stress control at elevated temperature, stress-life curve of 16MnR at 300℃ was obtained.

Low cycle fatigue characteristic of 16MnR under stress control at elevated Temperature is investigated, relations between young's modulus, total strain amplitude, cyclic hysteresis energy and cycles, magnitude of stress is discussed to understand behavior of stress-strain at elevated temperature.

Study on complexants of acidic electroless nickel plating at middle temperature;

A numerical value study on chemical reaction of CaCO_3 particles during the middle temperature reaction;

The development of the larger axial force intermediate temperature balance in the hypersonic wind tunnel;

The electrochemical performance of H2S-Air solid oxide fuel cells (SOFCs) was characterized at different intermediate temperatures and H2S flow rates,r(H2S).

Study of electroless nickel plating process and its additive at medium temperature;

Properties of Ag-Au-Ge medium temperature solder;