Ying Liu¹, Yufeng Nie², Weiwei Zhang², Lei Wang²

CMES-Computer Modeling in Engineering & Sciences, Vol.55, No.1, pp. 89-110, 2010, DOI:10.3970/cmes.2010.055.089

Abstract In the light of the ideas and treatment technologies about molecular dynamics simulation and bubble meshing, a new approach of node placement for the meshless method called node placement method by bubble simulation (NPBS method), is proposed. Nodes are seen as the centers of the bubbles which can be moved by their interacting forces. Through dynamic simulation, bubbles are placed into a near-optimal configuration, and the centers of bubbles will form a good-quality node distribution in the domain. This process doesn't need updating the mesh connection constantly, i.e., is totally meshfree. Some example results show… More >

Haofeng Chen¹

CMC-Computers, Materials & Continua, Vol.20, No.2, pp. 159-184, 2010, DOI:10.3970/cmc.2010.020.159

Abstract In this paper a state-of-the-art numerical method is discussed for the evaluation of the shakedown and ratchet limits for an elastic-perfectly plastic body subjected to cyclic thermal and mechanical load history. The limit load or collapse load, i.e. the load carrying capacity, is also determined as a special case of shakedown analysis. These design limits in plasticity have been solved by characterizing the steady cyclic state using a general cyclic minimum theorem. For a prescribed class of kinematically admissible inelastic strain rate histories, the minimum of the functional for these design limits are found by… More >

W. F. Yuan^1,2, H. B. Zhang¹

CMC-Computers, Materials & Continua, Vol.16, No.2, pp. 117-126, 2010, DOI:10.3970/cmc.2010.016.117

Abstract Corrosion pits on a steel plate can reduce the strength of the plate. However, it is difficult to calculate the corrosion effect analytically since the pits are normally distributed on the plate's surface randomly. In this manuscript, a simple approach is proposed to convert the corroded plate into a perfect one. By this method, the corrosion pits are treated as inclusions embedded in the plate. Then the analytical mechanics model used for composite material can be adopted in the calculation of the steel plate's effective material properties. To verify the proposed approach, numerical simulation is More >

Bozena Dobrzycka¹, Slawomir J. Terlikowski¹, Oksana Kowalczuk², Maciej Kinalski³

European Cytokine Network, Vol.20, No.3, pp. 131-134, 2009, DOI:10.1684/ecn.2009.0161

Abstract The significance of circulating levels of TNF-α and its soluble receptors (sTNF-Rs) in the plasma of patients with epithelial ovarian cancer (EOC) has not been fully elucidated. The present study was to investi-gate the relationship of pretreatment plasma levels of TNF-α, sTNFR-1 and sTNFR-2 with outcome in 126 patients with EOC. Concentrations of TNF-α and sTNF-Rs were determined by enzyme-linked immunosor-bent assay (ELISA). Median TNF-α and sTNF-Rs levels were significantly higher in EOC patients than in healthy controls. High plasma levels of TNF-α and sTNF-Rs were correlated with tumor stage and with reduced mean survival More >

Jennifer Gordetsky, Ronald Rabinowitz, Jeanne O’Brien

Canadian Journal of Urology, Vol.16, No.2, pp. 4584-4588, 2009

Abstract Objective: Catherine de Medici, queen consort of King Henry II of France, was a powerful woman at a time when power for her sex was determined by fecundity. A decade-long history of infertility might have placed her at risk for condemnation, but her husband's known urologic abnormalities played in her favor. This presentation will address the penile deformity of her husband, Henry II, and how this likely played a crucial role in her eventual rise to power, the interventions undertaken with regard to her purported infertility, and the historical ramifications when Catherine de Medici went on… More >

ORLANDO J. CASTEJÓN^1*, MICHAEL E. DAILEY²

BIOCELL, Vol.33, No.2, pp. 71-80, 2009, DOI:10.32604/biocell.2009.33.071

Abstract The localization of GluR1 subunits of ionotropic glutamate receptors in the glial cells and inhibitory neurons of cerebellar cortex and their association with the climbing and parallel fibers, and basket cell axons were studied. Samples of P14 and P21 rat cerebellar cortex were exposed to a specific antibody against GluR1 subunit(s) of AMPA receptors and were examined with confocal laser scanning microscopy. GluR1 strong immunoreactivity was confined to Purkinje cell and the molecular layer. Weak GluR1 immunoreactivity was observed surrounding some Golgi cells in the granule cell layer. Intense GluR1 immunoreactivity was localized around Purkinje,… More >

Rubí Arriaga¹ M, A González Huerta², AM Castillo González³, V Olalde Portugal⁴, BG Reyes⁵, LI Aguilera Gómez⁶

Phyton-International Journal of Experimental Botany, Vol.78, pp. 91-100, 2009, DOI:10.32604/phyton.2009.78.091

Abstract Among commercial plants utilized in floriculture in Mexico State, Lilium species have a great production volume, with problems associated with high use of chemical fertilizers, soil salinity and water pollution. Sustainable strategies are required to minimize impacts on the ecosystem without diminishing quality products. Main effects and the interactions of phosphorous, Glomus fasciculatum and Bacillus subtilis were evaluated under greenhouse conditions. Twelve treatments arranged in a 2x3x2 factorial with 10 replications by treatment were studied. Results showed that G. fasciculatum combined with 22 μg/ml P and B. subtilis had a positive correlation with root colonization, root dry weight, stem diameter, More >

Weiming Tao¹, Xingwang Yang¹

The International Conference on Computational & Experimental Engineering and Sciences, Vol.12, No.3, pp. 83-84, 2009, DOI:10.3970/icces.2009.012.083

Abstract Laser controlled separation of brittle materials like glass is a promising non-conven\discretionary {-}{}{}tional cutting method. It is an application of the crack propagation driven by thermal stresses induced by laser irradiation. In order to induce and control a crack propagating accurately along predetermined asymmetric trajectory in a brittle plate, an iterative method for effective laser scanning path was presented, and the effect of control parameters on the convergence was investigated. The iterative formulation for laser scanning path was based on PID control theory, which was composed of deviation of the crack from predetermined trajectory and… More >

Y.W. Yun, M.K. Park

The International Conference on Computational & Experimental Engineering and Sciences, Vol.9, No.1, pp. 25-26, 2009, DOI:10.3970/icces.2009.009.025

Abstract This paper presents a semi-active control of vehicle suspension system with a hybrid damper. This damper consists of a conventional oil damper and magnetorheological fluidic (MRF) accumulator, which comprises gas accumulator and MRF device. The shaft of MRF device, fitted to in series the side of gas accumulator, is connected with a floating piston that divided into gas chamber and oil chamber. During the oil damper piston motion, the floating piston also behaves in the same direction of piston and the pressure of gas chamber varies. MRF accumulator will provides a force to the damper… More >

R. M. Ardito Marretta^*, G. Barbaraci^†

Molecular & Cellular Biomechanics, Vol.6, No.3, pp. 175-190, 2009, DOI:10.3970/mcb.2009.006.175

Abstract This study, through a typical aerospace systems architecture, suggests an engineering design of a human cancer cell circuitry in which a digital optimal control matrix is assigned to repair the DNA damage level and/or to trigger its apoptosis.
Here, the conceived machinery is proposed taking into account the state of the art in cancer investigation. However, it could be further generalized. The most recent studies on cancer pathologies give a predominant role to the oncosuppressor protein p53 and its antagonist, the oncogene Mdm2.
Experimental and theoretical approaches are in agreement in deducing a “digital” response of… More >