Search results

The Influence of Process Scheme on the Straightening Effect of Section Steel Ben Guan1, a, Yong Zang1,b, Yuan Wang1,c, Sha Feng1,d, Xiaochan Liu 1,e 1School of Mechanical Engineering, University of Science and Technology Beijing, Beijing 100083 China aniuben57@163.com, byzang@ustb.edu.cn, capwangyuan@yahoo.com.cn, d fengxiaosha921@sina.com, elyn1523@yeah.net Keywords: Straightening, Elastoplasticity, Bending Abstract.
Therefore, we define the ratio of the absolute value of the average residual stress and material yield stress .By analyzing the cross-section residual stress levels, the calculation formula of is shown below: (5) of different schemes after straightening are distributed on the cross-sections with different initial curvatures as follows as shown in Fig. 3.
Fig. 3 The residual stress levels after straightening of different process scheme The ratio of the residual stress after straightening in different process programs and material yield stress are distributed on the cross-sections with the initial curvatures C0=－1 as follows as shown in Fig. 4 .
Acknowledgement This work has been supported by a grant from the National Natural Science Foundation of China (No. 50775010) and by a grant from the National High Technology Research and Development Program of China (863 Program)(No. 2009AA03Z515).
Feng: Journal of Mechanical Engineering, Vol. 48 (2012) No.02, p.81

With the combination of rigid flange, flexible flange, high-strength bolts[3], high strength plain bolt, Q235B, Q420B material flange, such as showing in Table 1.
Table 1 Results of flange joints Type of flange Type of bolt Specimen number Material of flange Size of weld Thickness of flange Diameter of bolt h/mm t/mm d/mm Rigid flange 10.9 High strength bolt specimen 1 Q235B 10 20 27 specimen 2 Q420B 8 12 27 10.9 High strength plain bolt specimen 3 Q235B 10 20 30 specimen 4 Q420B 8 12 27 Flexible flange 10.9 High strength bolt specimen 5 Q235B 17.5 35 24 specimen 6 Q420B 12.5 25 24 10.9High strength plain bolt specimen 7 Q235B 17.5 35 30 specimen 8 Q420B 12.5 25 24 Test device.
Acknowledgements This work was financially supported by the Shanxi Natural Science Foundation (2011JQ7008), the Special Research Foundation (11JK0965) from the Education Institution of Shaanxi, and the Fundamental Research Foundation (JC1105) from Xi’an University of Architecture & Technology.
Journal of Tongji University (Natural Science), 2011, 39(10): 1426-1433.

Leoben, 8700 Leoben, Austria 3School of Materials Science and Engineering, Shanghai Jiao Tong Univ., 200030 Shanghai, China 4 Chair for Casting Research, University of Leoben, Austria a li.jun@sjtu.edu.cn, b menghuai.wu@unileoben.ac.at, c ludwig@unileoben.ac.at, d abdellah.kharicha@unileoben.ac.at, e peter.schumacher@unileoben.ac.at Keywords: macrosegregation, steel ingot, solidification, modeling, A-segregation, columnar-to-equiaxed transition.
Acknowledgments The authors are grateful for financial support from the Austrian Federal Ministry of Economy, Family and Youth, from the National Foundation for Research, Technology and Development within the framework of the Christian-Doppler Laboratory for Advanced Process Simulation of Solidification and Melting, and from the FWF Austrian Science Fund (P23155-N24).
Marburg, Accelerated solidification in ingot: its influence on ingot soundness, Journal of Metals, 5 (1953) 157-172.

Application of forest management decision support program MOTTI in conditions of the Republic of Karelia (Russia) Yuri Sukhanov1,a, Victor Lukashevich1,b, Anton Sokolov1,c and Alexey Pekkoev2,d 1Petrozavodsk State University, Lenin av. 33, 185910 Petrozavodsk, Russia 2Karelian Research Centre of Russian Academy of Sciences, Pushkinskaya str. 11, 185910 Petrozavodsk, Russia ayurii_ptz@bk.ru, blvm-dov@mail.ru, ca_sokolov@psu.karelia.ru, dpek-aleksei@list.ru Keywords: Stand-level simulator, Forestry, Forest management, Decision support systems, Republic of Karelia (Northwest Russia).
Materials and methods The following tasks should be solved for check the adequacy of the program MOTTI stand development simulation models: – Choice of the data sources that are necessary for carrying out of simulation experiments; – A common approach should be developed for presenting the original data, experimental methods, and simulation results presentation forms; – Implementation of series of simulation experiments using the collected data; – The comparison of simulation experiments results and stands development observation data for territory of the Republic of Karelia.
The specialists of Karelian Research Centre of Russian Academy of Sciences provided substantial assistance in this work.
Pekkoev, Application of forest stand development modelling in academic process of forest specialities, Research journal of international studies, № 5-1 (12), 2013, pp. 77-79

Study on non-selective photocatalytic degradation of organic dyes in presence of hollow CdS nanospheres Han Wang 1, 2, a, Jingtang Zheng * 1, b and Xing Zheng * 3, c 1State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 255580, China; 2 Baotou Light Industry and Vocational Technical College, Baotou 014045, China; 3Beijing ZNHK science and technology development co., LTD, Bei jing 100080, China a wanghan960070@126.com, b jtzheng03@163.com, c znhk113@163.com Keywords: hollow CdS nanosphere; photocatalysis; hydroxyl radical; wastewater remediation.
Since the materials’ properties greatly depend on their morphological features, nanostructured CdS with different sizes, shapes, and dimensionality has been fabricated and characterized, among which the hollow structure has received particular attention, owing to their unique chemicophysical properties including high specific surface area, good permeability, and special optical/electrical/magnetic properties [3].
Acknowledgments This work is financially supported by the National Natural Science Foundation of China (Grant No. 21176260 and 21376268), Taishan Scholar Foundation (No. ts20130929) and National Basic Research Program of China (NO. 2011CB605703).
Chinese Journal of Synthetic Chemistry, (2014): in press

For nearly a decade, scholars at home and aboard have carried on further and extensive research on the power performance, economics, emissions and the reliabilities of the engine fueled with of biodiesel, which is made from various raw materials through multifarious processing crafts [9-12].
Acknowledgments The authors wish to express their appreciation for the funding from the National Natural Science Foundation of China (No.51076069), which supported this study.
Journal of Combustion Science and Technology. 2004,(2):125-129.

Analytical model The analytical model based on material is usually fiber section model.
The accuracy of a fiber section model is almost entirely depended on the ability of constitutive material models to represent the overall inelastic behavior of the member.
Acknowledgements This work was financially supported by Basic Scientific Research Business Expenses of Gansu Higher Education and Gansu Construction Science and Technology Key Project (JK2009-22).
Wang: China Civil Engineering Journal.
Mohle: Journal of Structural Engineering.

Multi-ribbed composite wall structure system proposed by Xi' an University of Architecture and Technology has ecological and shock absorption features, adapts to China's national conditions, meets requirements on energy-saving and wall materials innovation.
Table 1 Basic parameter of test specimen Specimen Identifier Influence factors Section width b(mm) FD-11 Section width of frame beam and column 70 FD-12 50 FD-13 40 IFD-11 Infilled material strength and elasticity modulus of frame beam and column section 80 IFD-12 70 IFD-13 60 IFD-14 50 IFD-15 40 The production process of FD series is: reinforcement banding assembling formwork pouring concrete.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50878021 and 50908188).
Later Stiffness of Infilled Frames, Journal of the Structural Division, ASCE, December , 1962, pp.183-199 [2] Roger D.
Bennett: In-Plane Behavior of Structural Clay Tile Infilled Frames, Journal of Structural Engineering, June 1999，pp.590-599 [3] Yue YF.(2004).

For a design of heat exchangers the factor such as heat transfer coefficient, friction, and pressure drop, temperature withstanding ability, material selection, flow analysis, thermal analysis and many more parameters has to be considered.
Conference on Modeling, Optimization and Computing, Procedia Engineering 38 (2012) 685-690 [3] R.Pachaiyappan, R.Gopinath, Dr.S.Gopalkannan, Processing Techniques of a Silicon Carbide Heat Exchanger and Its Capable Properties- A Review, Applied Mechanics and Materials Vol. 787 (2015) pp 513-517 [4] I.Kocioglu, Ahmet Cansiz, Mansour Nasiri Khalaji, Experimental investigation for optimization of design parameters in a rectangular duct with plate-fin heat exchanger by Taguchi method, Applied Thermal Engineering 50 (2013) 604-613 [5] J.M.Reneaume, Optimization of plate fin heat exchangers-a continuous formulation, Institution of Chemical Engineers Trans IChemE, Vol 78, Part A, September 2000 [6] Bayram Sahin, A Taguchi approach for determination of optimum design parameters for a heat exchanger having circular-cross sectional pin fins, Heat Mass Transfer (2007) 43:493–502 [7] Seong Won Hwang, Dong Hwan Kim, June Kee Min and Ji Hwan Jeong1(2012), “CFD analysis of fin tube heat exchanger
with a pair of delta winglet vortex generators”, Journal of Mechanical Science and Technology Vol. 26 (9), pp 2949-2958 [8] Takeuchi Y, Park C, Noborio K, Yamamoto Y, konishi S “ Heat transfer in SiC compact heat exchanger”, Fusion engineering and designs, vol. 85 (2010) pp 1266-1270 [9] Jainender Dewatwal Design of compact plate-fin heat exchanger a thesis NIT Rourrkela [10] Chi-Chuan Wang, Kuan-Yu Chi (2000), “Heat transfer and friction characteristics of plain fin-and-tube heat exchangers, part I: new experimental data”, Int.
Heat and Fluid Flow 18: 530-537, 1997 [13] Jiin-Yuh Jang, Ling-Fang Hsu, Jin-Sheng Leu, Optimization of the span angle and location of vortex generators in a plate-fin and tube heat exchanger, International Journal of Heat and Mass Transfer 67 (2013) 432–444 [14] Jiangfeng Guo, Xiulan Huai, Optimization design of heat exchanger in an irreversible regenerative Brayton cycle system, Applied Thermal Engineering 58 (2013) 77-84.

As the energy of surface acoustic waves (SAW) almost concentrates closely to the surface within one wave length, the lower frequency SAW are prone to be affected by the substrate, while the higher are dominated by the material properties close to the surface [3].
In order to attain thin films’ properties and even to investigate “higher order” propagating surface modes (Sezawa) with different velocities in layered materials, it’s necessary to work with high frequency acoustic waves [4].
Acknowledgment Acknowledge fund from The National Science Foundation (60723004).
Journal of Applied Physics, Vol.100, No.7, pp.074315(1-6), 2006
Journal of Experimental Mechanics, Vol.12, No.1, March 1997