Search results

Structure and Photoelectric Properties of Cu3N Thin Films by Reactive Magnetron Sputtering Jinfeng Lenga*, Lina Chenb, Xiaozhe Zhuc and Zhenhe Sund Material Science and Engineering, university of Jinan，Jinan, Shandong, 250022, China a*jfleng@126.com, bcln371327@163.com, czhuxz2036@163.com, dsunzhenhe_jn@163.com Keywords: Cu3N thin films, Magnetron sputtering, N2/Ar Ratio, Structure, Photoelectric properties.
And the value of optical reflectance changes greatly before and after decomposition which is critical for write-once optical recording materials.
Acknowledgments The authors thank for the support of the National Natural Science Foundation of China (No. 51301076), Science, Technology project of University in Shandong Province(No.J14LA60), Doctor Foundation of University of Jinan(XBS1107)，and Technology Foundation of University of Jinan(XKY1105).
X-Ray Diffraction Procedures for Polycrystalline and Amorphous Materials: Second edit ion [M].
Journal of Crystal Growth 280(2005) 490.

The ultrasonic time-of-flight diffraction (TOFD) method The basic principle of the TOFD technique can be depicted in Fig.1 Suppose a buried crack in a specimen of isotropic and homogeneous material is located between a transmitter and a receiver [3].
The material of transducer wedge is Lucite and its angle is 45°, which means the refraction angle in the mild steel is 45°.
Materials Evaluation, Vol.43(1985),p. 1455 [2] Daniele Marioli, Claudio Narduzzi, Carlo Offelli, Dario Petri, Emilio Sardini, Andrea Taroni: IEEE Transactions on Instrumentation and Measurment, Vol.41(1992),p. 93
Smart Materials and Structures, Vol.15(2006),p. 1531
I:Journal of Acoustic Society of America, Vol. 113(2003), p.1551.

Parameters Value Materials of the mould core Steel H13 Initial temperature of the mould core 20℃ Materials of the mould frame Steel 45 Initial temperature of the mould frame 20℃ Temperature of heat transfer oil 290℃ Temperature of air 20℃ Time for simulation 8 hours Between the heat transfer oil and the mould core, there exists convection heat transfer.
Studies have shown that the heat transfer coefficient hcontact is mainly affected by factors such as interface temperature, interface pressure, interface roughness, and the types of materials on both sides of the interface [13].
Feng, Principles of Chemical Engineering, Science Press, Beijing, 2001.
Fang, Study on Cooling Channel Arrangement of High -Pressure Casting Die for Box -Like Workpieces, Journal of Xi'an Jiaotong University. 45.07 (2011) 38-44
Ning, Experimental study on thermal contact resistance between solid-solid surface and development on database query system, Nanjing University of Science & Technology. (2014) [14] Y.M.

Such models allowed for the development of many materials that are used in electromagnetism for antennas and dielectrics.
In a similar manner, the mathematical formulation of diffusion by Fick facilitated the development of membranes and diffusion-barrier high performance materials.
Synthetic polymers (plastics) are one such material.
To continue, another mathematical technique used in imaging is the inverse conductivity problem, also known as EIT (Electrical Impedence Tomography), having applications in medical imaging, underground prospection and non-destructive testing of materials.
Journal of Chemical Physics, 21(6):1087-1092, 1953 [6] S.

Acknowledgments The support from (a) the National Science Foundation through grants CMS-0638728 and CMS0639428, (b) the Commonwealth of Pennsylvania, Department of Community and Economic Development, through the Pennsylvania Infrastructure Technology Alliance (PITA), and (c) the U.S.
Bahkt, eds., Multi-Science Publishing Co., Ltd., England (invited paper, submitted)
Journal of Bridge Engineering, ASCE, 8(6), 374- 382
[17] Kong, J.S., and Frangopol, D.M. 2005, Sensitivity Analysis in Reliability-Based Lifetime Performance Prediction Using Simulation, Journal of Materials in Civil Engineering, ASCE, 17(3), 296-306
Journal of Structural Engineering, ASCE, 131(4), 600- 616

Materials of underground structure include reinforced concrete, concrete filled steel tube, steel-reinforced concrete, steel, etc..
Journal of the Structural Division, ASCE,Vol.95(6) (1969),p.1213
(Shanghai station of the building materials industry market management,China,2009).
Science Technology and Engineering, Vol.12(1) (2012),p.76
Journal of the China Railway Society, Vol.34(2)(2012),p.100.

Obviously, the research findings currently undertaken regarding the mechanical property of the cement-fly ash stabilized crushed-stones cannot reveal the rules between material composition and performance, thus unable to fulfill the purposes of optimized material design.
Testing Program The raw materials includes the limestones from Shanxi Liulin Zhongjiao Rock Material Ground, the P.O42.5 delayed setting cement from Tongchuan Shengwei Cement Co, Ltd., and the fly ash from Shenmu Jinjie Guohua Power Plant.
Strong Interlocked Skeleton Dense Gradation 3.1 Theoretical Research 3.1.1 CBR Numerical Experimentation Method for Mineral Materials Standardization Based on PFC2D, the CBR numerical experimentation method for graded macadam is put forward.
Acknowledgement The project was supported by the Special Fund for Basic Scientific Research of Central Colleges, Chang’an University (item number: CHD2011ZY007), Chang’an University basic research support program and Traffic Paving Materials Ministry of education Engineering Research Center.
Journal of Tongji University(Natural Science Edition).

The development of ecological restoration science theory began in the 1980s.
Journal of Coal Science & Engineering(China) Vol. 02(2005), p. 67-70 [3] C.H.
China Social Sciences, Vol. 04(2010), p. 1 [4] W.H.
Ecologic Science, Vol. 3(2004), p278-281 [8] S.Y.
Ecologic Science, Vol. 3(2004), p. 252

In conclusion, we find evidence suggesting that China should clearly understand the contingency and stage characteristics of affordable housing development, meanwhile establish all-round and whole process support policies and measures, and strengthen renovation of science and technologies.
Therefore, to achieve good goals and speed up construction of affordable housing, to keep sustained and healthy development in whole process, we should establish cooperative mechanism along with ministry of housing and urban-rural development (MOHURD), ministry of human resources and social security(MOHRSS), national development and reform commission(NDRC), ministry of finance(MOF), ministry of science and technology(MOST) led by the State Council, and build top-down, start-end, all-around and whole process policies and measures to support housing construction.
Strengthen renovation of science and technologies to change from quantity to quality.
To improve affordable housing quality also relies on the application of new material, craftwork and technology.
At the technical level, series of mature and economical green technology and measures such as natural lighting and ventilation design, rainwater recycling and grey water utilization technology, as well as the application of energy-saving devices and recycled building materials are gradually applied to affordable housing projects to effectively reduce the cost of both initial construction and later period operation, ensuring greater economic, environmental and social benefits of affordable housing construction.

As shaft surface soil depth increases, the materials of shaft lining develops from plain concrete to super reinforced concrete, from single steel plate to double steel plate.
However, the materials cannot bear the pressure.
Design of shaft lining structure model testing In the model testing, we use the original shaft lining materials, which are super strength steel fiber concrete and steel plate applied in actual constructions, which gives complete stress-strain curve of strength similarity and loading.
Since the shaft lining model and prototype keep geometrical similarity before and after the loading deformation and adopt the same materials, and then the above similarity conditions may be rewritten as follows: , (1) Among, is strength similarity Constant.
[5] Lin Xiaosong and Yang GuoLin: High Strength and Super Strength Steel Fiber Concrete (Science Press, Bei Jing 2002)