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As arc-shaped structures can bear larger load than flat ones in the same characteristics of the structure and material, which means the former have better mechanical performance.
Hence if we use the arc-shaped baffle (Fig. 2b) instead of the traditional flat one (Fig. 2a), less material is needed, making construction of the fishways cost less and gain better structural durability as well.
Acknowledgements The authors are grateful to the funding for this study from the National Natural Science Foundation of China (NSFC 50979071 and NSFC 11172213), Kwang-Hua Fund for College of Civil Engineering, Tongji University and Innovation Program of Shanghai Municipal Education Commission (11ZZ28).
KSCE Journal of Civil Engineering, Vol 16 (2012), p. 265-272 [2] M.
Journal of hydraulic engineering ASCE, Vol 129 (2003), p. 341-347 [4] N.

Niinomi, Mechanical biocompatibilities of titanium alloys for biomedical applications, Journal of the mechanical behavior of biomedical materials.
Progress in Materials Science. 54 (2009) 397-425
Yurovskikh, Metallic materials for medical use, MATEC Web Conferences 132. 03003 (2017) [4] E.W.
Welsch, Young's Modulus and Damping Capacity of Ti-6Al-4V Alloy as a Function of Heat-Treatment and Oxygen Concentration, Materials Science and Engineering.
Collings, Materials Properties Handbook: Titanium Alloys, ASM International, The Material Information Society, 1994

Low Temperature Co-fired ZnNb2O6 Dielectric Ceramic Doped by B2O3 Jian Yanga, Jikang Yanb, Jinghong Duc, Fangchun Yand, Kunyong Kange, Jianhong Yif and Guoyou Gang* Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093 China Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093 China Key Laboratory of Advanced Materials of Precious-Nonferrous Metals, Ministry of Education, Kunming 650093 China Kunming Key Laboratory of Advanced Materials of Precious-Nonferrous Metals ayj_ccsvc@126.com, b307688386@qq.com, ccldjh@sina.com, dyanfangcun@126.com, e15368050138@163.com, fyijianhong@kmust.edu.cn, gganguoyou@kmust.edu.cn Keywords: ZnNb2O6, B2O3, Microwave dielectric ceramic, LTCC, Doping.
Furthermore, B2O3 doping can generate liquid phase and reduce the activation energy of diffusion to promote the materials sintering.
The dielectric loss of the microwave dielectric materials at microwave frequency includes intrinsic and extrinsic loss.
The authors would like to acknowledge Key Laboratory of Advanced Materials of Yunnan Province and Key Laboratory of Advance Materials of Precious-Nonferrous Metals, Education Ministry of China for providing the facilities required for the present investigation.
Jantunen, Low loss dielectric materials for LTCC applications: a review, Int Mater Rev. 53 (2008) 57-90

Network learning resources is accompanied by computer technology, communication technology and network technology developed new educational resources, for foreign language teaching providing a variety of teaching materials.
Advent of the Internet and information technology makes language teaching resources gained unprecedented prosperity and development, quality network resources for foreign language teaching provides a variety of teaching materials. the paper based on SQL Server database management system to study resource library structure and integrity design, to provide support for building foreign language network learning resource system.
Acknowledgement This work is supported by social science fund project of Liaoning province (L13DYY024).
Wang, "Network learning value functions and types of resources," Journal of Neijiang Teachers College, vol. 22, no. 5, pp. 104-106, 2007
[2] Ruaysup Deshchaisri, Saroach Sopeerak, "A Study of Network Learning Resource Center for Elementary Schools of Bangkok Metropolitan," Procedia - Social and Behavioral Sciences, vol. 103, no. 26, pp. 63-67, 2013

Introduction In Taiwan, most of materials used for roadway construction are hot mix asphalt that is called flexible pavement.
Thus, it is no doubt that the hot mix asphalt plays the mainstream of the materials for pavement used.
Kuo, “A Study on the Material Characteristics and Proportioning of CA Mortar for Slab Track”,Journal of the Chinese Institute of Civil and Hydraulic Engineering,Vol. 20, No. 1, pp. 69-80, (2008)
[5] Nadia Pouliot, Jacques Marchand, and Michel Pigeon, “Hydration Mechanisms, Microstructure, and Mechanical Properties of Mortars Prepared with Mixed Binder Cement Slurry-Asphalt Emulsion,” Journal of Materials in Civil Engineering, Vol. 15, No. 1, pp. 54-59 (2003)
[6] Hun Song, Jeongyun Do, and Yangseob Soh, “Feasibility study of asphalt-modified mortars using asphalt emulsion,” Construction and Building Materials, Vol. 20, Issue 5 pp. 332–337(2006)

It can be seen from Fig. 5 that as the heating temperature rising within the range of 800~900°C, the martensitic volume in the microstructure of the quenched materials increase gradually, while the ferrites reduce little by little.
Latest Developments in Sheet Metal Forming Technologies and Materials for Automotive Application: the Use of Ultra High Strength Steels at Fiat to Reach Weight Reduction at Sustainable Costs.
Key Engineering Materials Vol. 2007 (344) 1-7 [2] R.
[3] A Turetta, S,Bruschi, Investigation of 22MnB5 formability in hot stamping operations, Journal of Materials Processing Technology 177(2006) 396-400 [4] M.
Lecher, Investigation of the thermo-mechanical properties of hot stamping steels, Journal of Materials Processing Technology 177(2006) 452-455

The study materials were used plates made of aluminum A5 and steel St3.
The strength of the joint was determined using standard test methods for explosion-welded composite materials [19-21].
Findik, Recent developments in explosive welding, Materials and Design. 32 (2011) 1081-1093
Zhang, Applications and capabilities of explosive forming, Journal of Materials Processing Technology. 125 (2002) 1-25
Miu, Explosive welding of aluminum-steel of dovetail groove, Hanneng Cailiao, Chinese Journal of Energetic Materials. 24 (2016) 188-193

Vinyl ester resins are one of the most common raw materials which have been used extensively in polymer engineering[3].
These resins are synthesized using raw materials derived from petroleum.
Replacing some of these petroleum-based row materials with renewable vegetable oil-based materials such as palm oil, can be attractive, both socially and economically as the use of these raw materials contributes to global sustainability by not depleting petroleum reserves[4].
Experimental Materials.
Walkenström, Preparation of thermoset composites from natural fibres and acrylate modified soybean oil resins, Journal of Applied Polymer Science, 114 (2009) 2502-2508

Clarke, Materials Science and Engineering A 278 (1999) 142-150
Dinhut, Corrosion Science 51 (2009) 2246-2248
Pharr, Journal of Materials Research 19 (2004) 3-20
Rajam, Applied Surface Science 255 (2008) 2925-2931
Lucazeau, Journal of Physics and Chemistry of Solids 62 (2001) 553-563

Introduction When light illuminates on the surface of some material, the electrons which have obtained enough energy will escape from the material interior.
It is very strict to select the glass bond with GaAs epitaxial material, as strict as possible to make its expansion coefficient closed to the GaAs epitaxial material.
It is composed of GaAs/GaAlAs semiconductor epitaxy material and 7056 glass window.
Corresponding author: chh600@163.com Author Introduction: SHI FENG was born in1968, male, professor, doctor of Nanjing University of Science and Technology.
Director of Science and Technology on Low-Light-Level Night Vision Laboratory.