Yohsuke Imai, Hitoshi Kondo, Young Ho KANG, Takuji Ishikawa Chwee Teck Lim, Takami Yamaguchi

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 205-206, 2009, DOI:10.3970/icces.2009.009.205

Abstract Malaria is one of the most serious infectious diseases on earth. We have about five hundred million patients with two million deaths. When a malaria parasite invades and matures inside a red blood cell (RBC), the infected RBC (IRBC) becomes stiffer and cytoadherent. We propose a numerical model of hemodynamics arising from malaria infection. Our model is based on a Lagrangian and free mesh method (particle) method. A spring network model is employed to compute elastic force generated by the deformation of IRBC membrane. Adhesive property of IRBCs to surrounding cells is also expressed by More >

Patrícia C.T. Gonçalves^1,2, João Manuel R.S. Tavares¹, R.M. Natal Jorge¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 203-204, 2009, DOI:10.3970/icces.2009.009.203

Abstract The main goals of the present work are to automatically extract the contour of an object and to simulate its deformation using a physical approach. In this work, to segment an object represented in an image, an initial contour is manually defined for it that will then automatically evolve until it reaches the border of the desired object. In this approach, the contour is modelled by a physical formulation using the finite element method, and its temporal evolution to the desired final contour is driven by internal and external forces. The internal forces are defined… More >

Jiangong Li¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 201-202, 2009, DOI:10.3970/icces.2009.009.201

Abstract Nanoparticles are materials with at least one dimension in the 1 to 100 nm range. Nanoparticles exhibit different physical and chemical properties due to large ratio of surface area to volume and small size effects (or quantum effects). Nanoparticles cover almost all materials including ceramics, metals, and polymers. Nanoparticles have a wide variety of applications in catalysis, electrodes, metallurgy, magnetic storage, composite materials, coatings, MEMS or NMES, cosmetics, etc. Shape, size, and dispersity have influence on the crystal structure and properties of nanoparticles. So shape, size, and dispersity are keys to controlling structure and properties… More >

Shy-Pin Cuo¹, Dein Shaw²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 199-200, 2009, DOI:10.3970/icces.2009.009.199

Abstract The purpose of this study is to present the process of development of HID (High Intensity Discharge) light reflector of a streetlight. The new application of HID light source for streetlight product is proposed in this study, the advantages of HID include low power consumption and single point light source emitting. The study includes the introduction of HID streetlight structure, the lighting efficiency comparison of various light sources (ex. High Pressure Sodium-lamp ``HPS'', High Bright LED ``HB LED'', etc\ldots ), and the design of streetlight reflector. The emphases of the experiment are focused at light… More >

Y.S. Chen¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 197-198, 2009, DOI:10.3970/icces.2009.009.197

Abstract It is important for a company to put themselves under the protection of patent right to keep their unique competitive advantages when they confront global competition. This issue is of particular importance in Taiwan since a growing number of Taiwanese companies have been sued by foreign competitors for patent infringement. For inverter industry, producing labor-saving, energy-saving, space-saving, high-communicational, high-functional, low-noise and cost-saving inverters become a more and more important topic.
This research investigates the state of the art of current inverter technology. By using United States Patent & Trademark Office (USPTO) database, we collect global patent… More >

B.K. Raghu Prasad¹, T.V.R.L. Rao¹, A.R. Gopalakrishnan¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 179-196, 2009, DOI:10.3970/icces.2009.009.179

Abstract A simple numerical method namely Initial Stiffness Method using finite element method has been employed to study the size effect which is prominent in concrete structures. Numerous experimental investigations performed on notched plain concrete beams subjected to three point or four-point bending have revealed the fracture process to be dependent on size of the structural member. It was found that, the nominal stress at maximum load decreases as the size of the structure increases. The nominal stress at failure on the characteristic dimension of structure is termed as size effect. This has also been explained More >

C. K. Chen¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 163-178, 2009, DOI:10.3970/icces.2009.009.163

Abstract A classical alternating iteration method is applied to evaluate the stress intensity factors for a mixed oriented crack approaching semi-infinite plane or a straight crack. Conventional Gaussian-Legedre quadrature scheme is employed for the numerical integration in the crack vs. free boundary interacting problems; however, averaged image stresses along crack surfaces are invoked to simplify the alternating procedures in crack vs. crack interaction. Good correlation was achieved between the iterated solutions and the available solutions in the literature. As crack approach the free semi-infinite plane, mode I affect increases, however, maximum mode II stress intensity factors More >

Kuo-Ning Chiang¹, Chan-Yen Chou², Chung-Jung Wu², Chao-Jen Huang², Ming-Chih Yew²

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.3, pp. 130-142, 2009, DOI:10.3970/icces.2009.009.130

Abstract An atomic-level analytical solution, together with a modified Morse potential, has been developed to estimate temperature-dependent thermal expansion coefficients (CTE) and elastic characteristics of bulk metals. In this study, inter-atomic forces are considered as a set of anharmonic oscillator networks which can be described by Morse potential, while the material properties can be defined by these inter-atomic forces; when temperature increases, the vibration of the anharmonic oscillator causes the phenomenon of temperature-dependent material properties. The results of analysis showed that the original Morse potential can give a reasonable prediction of the thermal expansion coefficients and More >

Harald Berger¹, Ulrich Gabbert², Reinaldo Rodriguez-Ramos³

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.2, pp. 127-129, 2009, DOI:10.3970/icces.2009.009.127

Abstract Piezoelectric materials have the property of converting electrical energy into mechanical energy and vice versa. This reciprocity in the energy conversion makes piezoelectric ceramics very attractive for use as sensors and actuators. By combining piezoelectric fibers with passive non-piezoelectric polymer composites with superior properties can be created. But for design of such smart micro-macro structures homogenization techniques are necessary to describe the overall behavior of piezocomposites expressed by effective material coefficients.
A number o fnumerical and analytical methods have been developed to estimate the effective coefficients. Although analytical homogenization methods provide excellent results it is difficult… More >

Xia Yuan¹, Wu Jichun², Zhou Luying³

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.2, pp. 117-126, 2009, DOI:10.3970/icces.2009.009.117

Abstract This paper establishes a difference approximation on time-space fractional advection-dispersion equations. Based on the difference approximation an ideal numerical example has been solved, and the result is compared with the one of the rigorous time fractional advection-dispersion equation and the rigorous space fractional advection-dispersion equation respectively. The results show: when time fractional order parameter γ=1 or space fractional order parameter α=2, the numerical calculation result of the time-space fractional advection-dispersion equations is in accordance with that of the rigorous time fractional advection-dispersion equation or the rigorous space fractional advection-dispersion equation. The variation law of the result More >