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Online since: March 2010
Authors: Xin Wang, Di Wu, Shun De Gao, Jing Zhang
A 3D Modeling System for Construction Work Simulation Based on Rendering and Dynamic Engines WANG Xin 1, a, ZHANG Jing 2, b, GAO Shunde 1, c and WU Di 2, d 1 School of Mechanical Engineering, Dalian University of Technology, Dalian 116023, China 2 Department of Computer Science, Dalian University of Technology, Dalian 116023, China a wangxbd21@163.com, b justin2980@hotmail.com, c gaoshunde@163.com, d wudi831@yahoo.cn Keywords: 3D CAD, modeling, open source engine, construction work.
Rendering Engine and Dynamic Engine Object-oriented Graphics Rendering Engine (OGRE) is not only used to generate and manage geometric model, but also handle the orders which require rendering effects such as lighting, shadowing, texture mapping, setting the material, etc.
Martinez: submitted to Journal of Computing in Civil Engineering Vol. 15 (2001), p.329-337 [2] R.
Martinez: submitted to Journal of Computing in Civil Engineering Vol. 19 (2005), p.356-368 [3] J.
Online since: November 2012
Authors: Zhi Qiang Fan, Dao Jing Wang, Xing Hua Liu, Hong Liang
Lutz, “The Hydrogen-fueled Internal Combustion Engine:A Technical Review,” International Journal of Hydrogen Energy, Jan. 2006, p. 1292-1305, doi:10.1016/j.ijhydene.2005.12.001. ] Simulation test is an effective tool to reveal the mechanism of in-cylinder combustion process, which can control some main parameters of experimental process and meanwhile neglect other parameters so that it can greatly simplify the experimental work.
Through insulating material CVCC is fixed on a base which is placed on the adjustable support platform to conveniently regulate schlieren light route.
International Journal of Hydrogen Energy, Vol.34, February 2012, p2655-2660. ] In this paper, in order to analyze the hydrogen-air flame stability with different initial pressure conditions, we consider the first three stages.
Acknowledgments This work was supported by the National Natural Science Foundation of China (Project No. 50976014).
Online since: March 2015
Authors: Dong Won Jung, D.H. Kim, Ya Zhang
We used the material SGARC 440, and Table 1 shows the mechanical properties.
Velocity of roll 3 with 45° Spring back All materials have a finite modulus of elasticity; upon removal of the load, plastic deformation is followed by elastic recovery.
The material to be formed has a resistance against bending, caused by its stiffness and material properties.
Acknowledgement This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education(NRF-2014R1A1A4A01009199).
The computer simulation of cold-roll-forming using FE methods applied real time re-meshing techniques, Journal of Materials Processing Technol, 2003 (142): 102–111 [3] Z.W.
Online since: December 2011
Authors: Fu Yun Liu, Tian Chao Yu, Ying Sun
Introduction The topological optimization is a mathematical method,The basic idea is to turn the seek of the optimal topological of structure problem into the design to explore the best material distribution problems in a given area.
The basic idea of Cistern stents is the introduction of a density variable material which the hypothetical density values between [0, 1].
If the target is the minimum of structural deformation, considering material volume constraints (quality constraint) and structure balance, so the mathematical model of the topological optimization is: For, makes: (1) , , (2) In the formulation,C is Structure deformation energy,F is Load vector, K is Stiffness matrix, D is Displacement vector, V is With the material of structure volume,V0 is volume of design domain of structure, V1 is Less than Xmin the material volume of the unit density,f is Percentage of Surplus materials, Xmin is the lower limit of the relative density of Unit, Xmax is the upper limit of the relative density of Unit.
Acknowledgements This work was financially supported by National Natural Science Foundation of China (50865002), Guangxi Key Laboratory of Manufacturing System & Advanced Manufacturing Technology (No. 09_007_05_008) and Guangxi Education Department Foundation (0815).
(In Chinese) [5] Xi, L.J., Wu,J.M.andJin, X.D: Journal of ship mechanics Vol. 6 (2002), P. 107
Online since: September 2007
Authors: Dan Mao, Han Ning Xiao, Jiu Su Li, Zheng Yu Huang, Jing Nie, Jian Qing Gong
Influences of Micropowder Gradation on Rheological Properties of Cement-based Composite Pastes Jian-qing GONG1, a , Han-ning XIAO2 , Zheng-yu HUANG1, Jiu-su LI2 , Jing NIE 1 and Dan MAO1 1 College of Civil Engineering, Hunan University, Changsha 410082, China 2 College of Materials Science & Engineering, Hunan University, Changsha 410082, China a gongjianqing123@yahoo.com.cn Keywords: Micropowder; Compressible packing model; Packing density; Gradation; Rheological properties.
In 1982, Bache et al [4] described DSP material, a type of cement with uniformly distributed ultra-fine particles.
Experimental procedure Raw materials used in this work include grade 52.5 Portland cement (PC), grade I fly ash (FAI), ultra-fine fly ash (UFA), granular ground blast slag (GGBS) and silica fume (SF).
Table 1 Physical properties of raw materials Performance PC GGBS FAI UFA SF Density [g/cm3] 3.14 2.86 2.40 2.42 2.21 Specific surface [m2/kg] 268 223 404 629 18000 Average grain diameter [µm] 7.64 7.17 5.14 2.27 0.12 Results and discussion The relationship between the packing density based on the compressible packing model (CPM) and the content of mineral powders are shown in Fig.1 and Fig.2.
Jones, B.Cather: Concrete Engineering International Vol.9 (2005), pp. 59-61 [8] B.Phares, M.Krapfl: Materials Technology, 20, 174 (2005) [9] P.Rossi: in Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications, p67-74 (2005) [10] L.Y.
Online since: May 2016
Authors: Abdultawab Qahtan, Nedhal Al-Tamimi
A wide variety of glazed materials and products is currently available in the construction industry.
In Malaysia, the most frequently used glazing materials for construction are 6 mm thick glasses with a U-value of 5.6 W/m2K, a shading coefficient between 0.4 and 0.96, and a visible transmittance of 20% to 80% [13, 14].
ISESCO: Science and Technology Vision, 2006. 2(1): p. 25-29
Journal of Solar Energy Engineering, 1998. 120(1): p. 193–208
Journal of SolarEnergy Engineering, 1995. 117(1): p. 7-5
Online since: November 2013
Authors: Zhen Dong Dai, Shang Rong Li, Min Yu
Since IPMC materials can work as both sensors and actuators, it seems natural to use the materials as sensors to detect the output force.
Materials and experiments 2.1 IPMC material samples The core of the IPMC actuator is Nafion film (Nafion-117, DuPont) and the electrodes are made of Pt.
Acknowledgements The authors thank the financial support from National Natural Science Foundation of China (51175251).
Manufacture and performance of ionic polymer-metal composites, Journal of Bionic Engineering. 4(2007)143−149
Estimation Of Bending Resistance Of Ionic Polymer Metal Composite (ipmc) Actuator Following Variable Parameters Pseudo-rigid Body Model, Materials Letters,63(2009):745-747.
Online since: May 2012
Authors: Zhi Ming Bao, Xian Zhong Zhang, Lei Wang, Xue Cheng Fu
Materials and Methods In this research, a test bottle filled with inoculated mineral nutrient medium, containing a known concentration of the test substance (15 mg TOC/L) as the nominal sole source of OC is aerated by the passage of carbon dioxide-free air at a controlled rate in the dark or in diffuse light, at 22 ±2 °C.
ThCO2 (Theory CO2 production) of test materials was analyzed by TOC analyzer.
Two bottles of inoculum blanks containing only inoculum without test materials and reference compounds were used to correct the CO2 production in test and procedure control bottles.
Details of materials added to the bottles were shown in Table 1.
Table 1 Details of materials added to the test bottles Test groups Sludge Test material (mg TOC) Reference compound (mg TOC) Mineral medium Test suspension 20 mL 15 0 2980 mL Procedure control 20 mL 0 15 2980 mL Inoculum blank 20 mL 0 0 2980 mL The calculation of the biodegradation of Class A foam is shown in Eq. 1
Online since: July 2011
Authors: Jiao She, Kai Sheng Zhang
From the current study of kiwifruit production process informed, in the whole food-preserved fruit production, the key critical points of quality include materials, hardening protect color, hot bleach, vacuum leaching sugar and drying, and hardening protect color must inspect all kinds of reagents concentration at all times; hot bleach is in the proper temperature and time conditions, heating fruit slice of kiwifruit to make the enzyme deactivated, or excessive heat easily makes the fruit slice mushy and it will have cooking flavor and affect the quality; Vacuum leaching sugar time-averaged should be tested vacuity, sugar fluid temperature, additives concentration and its mixture temperature and dipping time; when it is drying, it needs to ensure that the pressure, time and temperature.
Acknowledgment This project was supported by the Graduate Innovation Fund of Shaanxi University of Science and Technology.
Nutrition and health care function of kiwi fruit and its processing technique[J], Food science, 2007(4):51-55
Shaanxi agricultural science, 2005(1):50-52
Study on the processing technology of a low-sugar preserved kiwi fruit by vacuum osmosis of sugar[J].Northwest agricultural science and technology university journals, 2002,30(1):36-38.
Online since: November 2014
Authors: Zhi Hong Hou
Introduction Artificial intelligence is a field of computer frontier, in computer science, control theory, developed on the basis of information theory, systems science, philosophy and other disciplines.
But compared with other engineering applications, the use of finite element study of human movement is much more complex, which is due to the finite element analysis of the human body first need to constitutive relationship theoretical study of biological tissue, and the establishment of human tissue constitutive equations itself is a very complex process, and another due to the geometry of the human body does not rule, the boundary conditions are very complex biological materials exhibit highly nonlinear and have time-dependent characteristics.
Hao, Computer modeling and simulation of special sports, Science and technology information, PP: 10-18, 2007.
Sun, Development and Prospect of computer simulation of the mechanical behavior of the human body, Journal of System Simulation, PP: 9-15, 2005.
Rao, Research on the use of multi-body model for optimizing posture Long Jumping, Xian university of science and technology building, PP-76-80, 2010.