Search results

Parametric defined material properties, generated mesh, defined contact and set contact parameters, defined boundary condition, defined solution set, etc. (3) User interface development: Carried out interface development use UIDL in LS-DYNA.
Start Defined material properties Parametric model building Mesh generation Satisfied1 Define contact and set parameters Boundary condition No Yes Solution set Solve Examine post-processing results Enter LS-PREPOST Examine stress, strain and dynamic display Examine stress, strain and dynamic identities End No Yes Static Dynamic Satisfied2 Satisfied3 Fig. 1 System developed flow chart Developed Menus and Interfaces.
Fig. 2 System main developed menus Developed interfaces in LS-DYNA: (1) Welcome interface: Basic Hypothesis, system introduction and operating instruction. (2) Material props interface: Input elastic modulus, Poisson ratio, density of road wheel and pin. (3) Solid model interface: Input relative dimensions and parameters of road wheel and pin. (4) Finite element model interface: Automatic generate finite element mesh by input general and local units size, also can automatic clear finite element mesh and pre-generate mesh, as Fig. 3 shows. (5) Boundary conditions apply interface: Define boundary conditions, also can clear and pre-define. (6) Rw solve set interface: Solution set. (7) Nodal solution interface: In static analysis, examine node stress, strain, contact stress and so on of contact analysis of road wheel and pin, as Fig. 4. (8) Element table solution interface: In static analysis, examine element stress, strain, contact stress and so on of contact analysis of road wheel and pin
References [1] Haifu Liu: Coal Mine Machinery Vol. 30 (2009), p. 192 [2] Xiaohuo Li, Ping Li and Chunsheng Liu: Journal of Heilongjiang Institute of Science and Technology Vol. 12 (2002), p. 1 [3] S.
Vijayarangan and Ganesan: Journal of Sound and Vibration Vol. 162(1993), p. 185 [4] Yueqian Jia: Mechanized Mining Technology Manual (Coal Industry Press, China 2001)

To date, researchers have accumulated additional material and, in particular, a fairly large number of new types of phytoliths.
Materials and Methods Tichocarpus crimson (Tichocarpus crinitus) today has the following taxonomic characteristics according to www.algaebase.org: Department: Rhodophyta, class: Florideophyceae, order: Gigartinales, Family: Tichocarpaceae, Genus Tichocarpus.
Acknowledgements This work is supported by Russian Science Foundation (project “Research of molecular bases of biomineralization and creation the biomineral biotechnology for microelectronics and biomedicine”).
Silicateins - A novel paradigm in bioinorganic chemistry: Enzymatic synthesis of inorganic polymeric silica // Chemistry - A European Journal 19(19) (2013) 5790-5804
Non-skeletal biomineralization by eukaryotes: matters of moment and gravity // Geomicrobiology Journal 27(6&7) (2010) 572-584

(3) In the formula, , , In the formula, and are the poisson’s ratio and elastic modulus of the cycloid gear and pin gear material respectively, and the both adopt the same material: , , and are the poisson’s ratio and the elastic modulus of the pin gear shell, and the material is HT200, , The total contact deformation of the meshing point between cycloid gear and pin gear and the meshing point between pin gear and pin gear shell along the direction of the normal is (the direction thereof is the same as ): The deformation by maximal contact force between cycloid gear and pin gear is: (4) In the position of the largest meshing force, and ; substitute the two formulas above into the calculating formula for profile curvature radius, and we can get:
Acknowledgement State Natural Sciences Fund Project “FA drive series research based on optimum tooth profile design theory” (50875029) References [1] Lixing Li, Tianmin Guan, Zifu Wang.
Machinery Engineering Journal. 1988(3): 24.28~32
Force analysis of output mechanism for cycloid drive, “Dalian Railway Institute Journal”, 1992

For example, due to its wide band gap and high thermal conductivity, SiC is an attractive material for high temperature operations [1].
Ni dots 50nm thick have been evaporated on the n+/p junctions in order to form the front contact, as well as on the p-type epilayer in order to form Schottky barriers on the unimplanted material.
Capano, Applied Surface Science, 184 (2001), 317-322 [4] A.
Poggi et al., ICSCRM 2003, October 2003, Lione (France) [5] Rybiki et al., Journal of Applied Physics, vol.78 (1995), no. 5, 2996 [6] A.A.
Rao et al., Solid-state Electronics, 47 (2003), 193 [8] Mitra et al., Journal of Applied Physics vol. 95 (2004), no.1, 69

Introduction Warm Mix Asphalt(WMA), which is originated in 1995, is a new type of road surface material developed rapidly against the background of energy shortage and global warming[1].The mixing and construction temperature of WMA is between hot mix asphalt (HMA,150~180˚C) and cold mix asphalt(CMA,normal temperature) due to using specific technologies or additives, and its performance could reach up to or be close to the HMA[2].
Virgin Materials SBS modified asphalt is used in the test, and its technical indexes can meet the requirements of Specifications of China[3].
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50578016).
References [1] Hao Liu,Shufang Zhang,Changying Zhang and Zhangcheng Li:Municipal Engineering Technology, Vol.27(4) (2009),p.332~335 [2] Feng Zuo and Fen Ye:Journal of China and Foreign Highway, Vol. 27(6) (2007),p.164~167 [3] Technical Specifications for Construction of Highway Asphalt Pavement[S].edited by Research Institute of Highway Ministry of Transport of the Peoples Republic of China(2005),in press [4] Jian Wu:Journal of Highway and Transportation Research and Development,Vol.25(4) (2008),p.135 [5] Yuanfeng Zhu, Menglan Zeng,Shenghua Wu and Chaofan Wu:Highway Engineering,Vol.35(6) (2010),p.44

The natural frequency can be calculated as follows: The natural frequency of rolling ball is In the formula, is radius of ball [m], is material density [Kg/m2], is material elastic modulus [N/m2].
The natural frequency of bearing’s ring is In the formula, is node number, is radius between rotation axis and neutral axis [m], is material elastic modulus [N/m2], is moment of inertia about neutral axis [m4], is the quality of unit length [Kg/m].
Acknowledgment This project is supported by China Postdoctoral Science Foundation (20100471431) and National High Technology Research and Development Program of China (2008AA11A140).
[2] Jinlong Wang: Journal of Weifang University, Vol. 9, No. 6(2009), p. 4-6, in Chinese
[6] Guangzhou Zhao, Tianxu Zhang, Yuehuan Wang et.al: Journal of Systems Engineering and Electronics, Vol. 16, No. 3(2005), p. 502-509

Study on Mapping Algorithm from EBOM to PBOM for Chemical Tower in UG Chen Qingguo, Zhang Juncai School of Mechanical Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018,China email: chenqg66@126.com, email: zhjc666@126.com Keywords: Chemical Tower; EBOM(Engineering BOM); PBOM(Proeess planning BOM); Mapping; Processing Rule.
Aimed at the characteristic of tower structure and the existing problem in technical data management at present, the paper develops computer aided design on Bill of Materials (BOM) for chemical tower to improve the data management.
It concretely consists of the design information of parts in chemical tower, for example drawing number, specification, standard number, and material.
Chinese Journal of mechanical engineering, 2005, (4): 35-38
The International Journal of Advanced Manufacturing Technology[J],, 2003, (22): 3-7 [6] Wang Yaodong, HeYuqiang, Cui Hongbing etc.Development Of BOM system based on UG threee dimensional modeling.

Sediment is a major nonpoint source pollutant, such as soil erosion and agriculture production, and the exchange of materials between water and sediment is the controlling component of the eutrophication process.
Phosphorus interacts with SS through adsorption and desorption, and phosphorus-laden sediment will settle down to the river bed when the flow velocity is low, in some conditions the phosphorus will release from the bed material layer, which may cause more serious water quality problem.
Acknowledgements The present work was supported by the National Science Foundation of China (No. 51309021).
Journal of Environmental Engineering(ASCE). 132 (2006):1498-1507
Journal of Yangtze River Scientific Research Institute (in Chinese and in Publication) [6] Zhang Chao.

Mesurment Instrument of Quantitative Fluorometry Intensity Based on Stoke’s Shift ZHANG Chijun1,a and WU Qiong1,b 1Changchun University of Science And Technology, China,130022 aZhangchijun0919@126.com,bqionsio@sina.com Keywords: Fluorescence; fluorescent intensity; stoke’s shift; blood circle diagnoses Abstract.
Testing Process Based on the stoke’s shift we select the fluorescence plain sodium as the drug (fluorescence plain sodium is the drug that has already been included in the Chinese pharmacopoeia) which enter into human body ‘s blood circle through intravenous injection half an hour later, shine the position that the patient needs to examine with the blue light with 450-500nm length by testing the intensity of fluorescence main peak which has to red clinicians can diagnose patient skin petals of survival situation after operation so -the doctors can make corresponding measures and diagnose some epidermis blood vessel disease further. 2.Mathematics Model of the Quantitative Fluorometry Intensity Fluorescent intensity F is not the inherent material in the excited state,which changes with the light absorbed by material and the excited light wavelength.That is express F=Φf=ΦfIα=ΦfI0 (1-e-2.303εcι) (1) Φf is the producing rate of fluorescence quantum,which lies
The light is weak,and the pumping light absorbed by fluorescence material is more weak, only a small part of light was absorbed,,so above formula is simplified as following: F=ΦfI0×2.303εcι (2) From formula (2).we know that fluorescent intensity is in proportion to the density of fluorescence plain sodium mixed in the blood , thus after examining patient fluorescent intensity in some position we can judge if the blood circle in this position is normal .
The Journal of Hard Surgery.Vol.12A.No.2 march1987,250～255
[4] Chinese Pharmacopoeia 1990 Second department people’s hygiene publishing company, Beijing 1990:352 [5] Li Wenhui, Wang liangneng, Discuss on vigor of arterial flood missing skin flap Chinese surgical journal 1984,22(7); 417

According to the Mechanics of Materials[1] : , (4) In this interface, the radius of curvature of concrete and carbon fiber are same value under the formula form (2) to (4): , (5) Under the force distribution what the Fig.1 shows, the elongation of the interface concrete part of beam element and the amount of shortening of the interface carbon fiber part of the beam element
Acknowledgements This project was supported by the Science and Technology Research Project, Ministry of Education, Liaoning Province (L2012097)and Third college students research training program in University of Science and Technology Liaoning 5.
References [1] Hongwen Liu , Mechanics Of Materials[M].
Traffic Science and Engineering, 2012, 28(3): 22-36
Analysis of thermal stresses of RC Beams Strengthened with carbon fiber sheet[J].Journal of Railway Science and Engineering, 2007, 4(5); 35-39