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Through experimental results, we found the heat pipes number plays a more importent role on the performance of heat dissipation than the fins material and the final surface temperature will increase with the environmental temperature.
From this result we can see the heat pipes number plays a more importent role on the performance of heat dissipation than the fins material.
Fig. 4 The effect of ambient temperature on the performance of heat dissipation Conclusion (1) Study the effect of heat pipe numbers and fins material on the performance of heat dissipation of HP heat exchanger and find that the heat pipe numbers plays a more importent role on the cooling capacity than the fins material; (2) Study the effect of ambient temperature on the performance of heat dissipation.
Acknowledgment This work is supported by Hebei Province Natural Science Foundation Project (No.
Journal of Engineering Thermophysics.

The characteristics and quality of activated carbons prepared depending on the chemical and physical properties of the starting materials and the activation method used.
Introduction Activated carbons are produced from a variety of carbonaceous materials.
The quality and characteristics of activated carbons depend on the chemical and physical properties of the starting materials and the activation method used.
All the peaks present in this figure were similar to those found in the infrared spectra of raw materials (Fig.2).
Generally, the entire spectrum has high intensity of peak, similar to raw materials.

Materials Science Forum2007:753-756
Journal of Electronic Materials35.8(2006):L11-L14
"Ultraprecision CMP for sapphire, GaN, and SiC for advanced optoelectronics materials." 
Advanced Materials Research 797(2013):284-290
Comparison of Fe catalyst species in chemical mechanical polishing based on Fenton reaction for SiC wafer Advanced Materials Research.

Study on Surface Quality of Lead Clad Tin Bimetal Continuous Casting by Air Pressing Core-Filling He Liang a, Yong-long Zhao, Bo-lin Zang, Zhu Liu, Zeng-hui Liu, Chun-jing Wu College of Material Science and Engineering, University of Science and Technology Beijing, Beijing, China a lianghe163@yeah.net Key Words: Bimetal, Surface Quality, Air Pressing Core-Filling, Continuous Casting Abstract.To provide theoretical basis and practical guidance of preparing copper clad aluminum composite rods by directly continuous casting, low melting point materials of lead and tin were selected to prepare composite rods of external diameter Φ12mm and inner diameter Φ8mm through adopting air pressing core filled continuous casting processing.
Introduction Clad materials have been developed very rapidly because of different demands of superior mechanical and thermal properties [1-4].
As the solid solubility of lead and tin is similar to copper and aluminum, the material of low melting point of lead and tin were selected in this experiment.
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Introduction Currently, most conventional plastic materials are created from petroleum.
Materials and Methods Materials Jackfruit rinds (JRs) were collected at fruit stall around Penang and were pre-treated according to method Koh et. al [11] with slight modification.
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