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According to the definition, the formula of thermal efficiency is Q Qe=η （19） The main influencing factors of thermal efficiency gotten from experiments are structure parameters of membrane, temperature difference between two surfaces of membrane and the mass flow rate of working fluid.
Industrial & Engineering Chemistry Research, Vol. 46 (2007), p.584-590 [9] Alklaibi, A.M; Noam Lior.

Ionic Synergistic inhibition between the cationic gemini surfactant and anionic surfactant for steel corrosion in 1M Hydrochloric acid Zhi CHEN*, Huanfang GAO, Yaoqiong WANG School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400050, China 69 Hongguang Avenue, Banan distinct, Chongqing, China z.chen@cqut.edu.cn, ghf1973@cqut.edu.cn, wangyq863@cqut.edu.cn Key words: Cationic gemini surfactant; Synergistic effect; carbon steel; Inhibition; Adsorption Abstract: The inhibitive synergistic effect between a cationic gemini surfactant, 1,2-ethane-bis(dimethyl dodecylammonium bromide) (designed as 12-2-12), and anionic surfactant, sodium dodecyl sulfonate (SDS) for the corrosion inhibition of A3 carbon steel in 1 mol L-1 HCl was investigated by weight loss.
The molecular structure of Gemini surfactant 12-2-12 was determined by 1H-NMR.

The study of the degradation of the phosphate ester catalyzed by the nitrogen unsaturated heterocycle Cerium(III) complex Famei Fenga, Xiyang Heb, Tao Wangc College of Chemistry & Pharmaceutical Engineering, Sichuan University of Science & Engineering, Zigong(643000) , Sichuan, P.
Because the reaction temperature is too high, the structure of intermediate complex has varied, so it can result in the catalytic efficiency becomes lower.

This is mainly due to the structure and thermal properties of chills.
Liao: Casting CAD/CAE (Chemistry Industry Press, Beijing 2003) [4] Y.

The content of various elements, valence state and fine structure on steel surface will affect the mechanical properties, thus affect the tribological properties[5].
Effects of extreme pressure additive chemistry on rolling element bearing surface durability [J].

To achieve this goal, it is necessary to modify the composition and structure of the anode catalyst [[] C.
Siepen: Journal of Organometallic Chemistry Vol. 520 (1996), p. 143. ].

They are usually large in size, causing problems like difficult to be put in wells of complex structure and high risk in construction.
Chen, Thermally Induced Shape-memory Polymer, University Chemistry, August, (2000), in Chinese

The composite structure of the insulating layer not only meets the system's mechanical strength, but also makes the leakage resistance above 1014Ω, ensures the test platform normal work.
Beijing: Chemistry Industry Press. 1983.9: 65-88 [3] R.

Using this novel process, the morphology of the final cathode products developed into big spherical shape above 1100℃, a significant change from typical spongelike structures.
Suzuki, Journal of Physics and Chemistry of Solids，Vol.66 (2005) .p. 466 [4] M.A.

Research and Prospect of Waste Mud Treatment Technology Juan Ma1, a,Chengtun Qu1, b,Bo Yang1, c and Shan Li1,d 1College of Chemistry and Chemical Engineering of Xi’an Shi You University, Shaanxi, Xi’an, 710065, China.
Mechanism of organic polymer hardener is generally considered physically rather than chemically, It does not change the inner structure of the clay minerals, it only makes the soil particles gathered by adsorption.