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  • Open Access

    ABSTRACT

    Associations between Carotid Bifurcation Geometry and Atherosclerotic Plaque Vulnerability: A Chinese Atherosclerosis Risk Evaluation II Study

    Peirong Jiang1, Zhensen Chen2, Daniel S. Hippe2, Hiroko Watase3, Bin Sun1, Ruolan Lin1, Zheting Yang1, Yunjing Xue1,*, Xihai Zhao4,*, Chun Yuan2,4

    Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 34-35, 2019, DOI:10.32604/mcb.2019.07394

    Abstract This article has no abstract. More >

  • Open Access

    ARTICLE

    A Simplified Formulation to Estimate Influence of Gearbox Parameters on the Rattle Noise

    Jidong Zhang1,2,*, Wentao Sui2, Jaspreet Dhupia3

    Sound & Vibration, Vol.53, No.2, pp. 38-49, 2019, DOI:10.32604/sv.2019.04362

    Abstract Occurrence of gear rattle in transmission systems can result in severe vibration and noise, which in applications such as automobiles is an important source of user discomfort. As a result , the reduction of the rattling noise has attracted lot of concerns. The rattling noise level is affected by several gearbox parameters, an understanding of which is essential to prevent the expensive design modifications at later stages of product development. To develop such understanding at the gearbox design stage, this paper analytically evaluates the gear parameters’ effect on the root mean square of the wheel More >

  • Open Access

    ARTICLE

    Quantitative Method for Biomechanical Evaluation of Bedding Comfortableness

    Akisue Kuramoto1,*, Hitoshi Kimura2, Norio Inou2

    Molecular & Cellular Biomechanics, Vol.16, No.4, pp. 235-243, 2019, DOI:10.32604/mcb.2019.08123

    Abstract Comfortable bedding is usually designed subjectively because of the difficulty in performing a quantitative evaluation. This paper proposes a quantitative evaluation method of comfortableness of beddings. The bedding shape determining how comfortable an individual may feel in using it depends on the body shape and normal posture of individuals. The internal physical load is expected to relate to the comfortableness of bedding. However, only a few quantitative discussions exist on the relation between the comfortableness of bedding and physical load. This study proposes a new evaluation method of physical load in a relaxed posture. The… More >

  • Open Access

    ARTICLE

    Effect of Eugenia winzerlingii Extracts on Bemisia tabaci and Evaluation of its Nursery Propagation

    A. Cruz-Estrada1,2, E. Ruiz-Sánchez2, I.L. Medina Baizabal1, E. Balam-Uc1 and M. Gamboa-Angulo1,*

    Phyton-International Journal of Experimental Botany, Vol.88, No.2, pp. 161-170, 2019, DOI:10.32604/phyton.2019.05809

    Abstract The development of plant-derived products to control Bemisia tabaci Genn. (Hemiptera: Aleyrodidae) is an urgent need for production of horticultural crops. Plant extracts and essential oils of several species of the genus Eugenia (Myrtaceae) have shown insecticidal activity. In southern Mexico, leaf extracts from Eugenia winzerlingii showed nematicidal effect but its insecticidal properties have not been explored. Therefore, the objective of this study was to evaluate the insecticidal effect of aqueous and organic extracts from E. winzerlingii leaves on B. tabaci egg, nymph and adult stages, and else to explore its nursery propagation. Then, extracts… More >

  • Open Access

    ARTICLE

    In vitro evaluation of native entomopathogenic fungi and neem (Azadiractha indica) extracts on Spodoptera frugiperda

    Hernandez-Trejo A1, B Estrada-Drouaillet1, JA López-Santillán1, C Rios-Velasco2, SE Varela-Fuentes1, R Rodríguez-Herrera3, E Osorio-Hernández1

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 47-54, 2019, DOI:10.32604/phyton.2019.04611

    Abstract The control of Spodoptera frugiperda is based on synthetic insecticides, so some alternatives are the use of entomopathogenic fungi (EF) and neem extract. The objective of the study was to evaluate in vitro effectiveness of native EF and neem extracts on S. frugiperda larvae. Six EF were identified by DNA sequencing of ITS regions from three EF (Fusarium solani, Metarrhizium robertsii, Nigrospora spherica and Penicillium citrinum). They were evaluated in concentrations of 1 × 10⁸ spores/ mL. In addition, a second bioassay was carried out evaluating only F. solani, M. robertsii and N. sphaerica and… More >

  • Open Access

    ARTICLE

    Meta-analysis evaluation of the treatment of neonatal hypoxic– ischemic encephalopathy with ganglioside

    Wen LI, Junli YANG, Dong ZHOU, Jinghui ZHANG, Qingcui ZHUO

    BIOCELL, Vol.43, No.1, pp. 7-12, 2019, DOI:10.32604/biocell.2019.04763

    Abstract The efficacy and safety of ganglioside in the treatment of neonates who suffer from hypoxic–ischemic encephalopathy (HIE) needs to be fully evaluated. We searched the following databases: PubMed, ScienceDirect, LISTA, CNKI, Chinese biomedical literature database and Wanfang digital journals of full-text database to determine the inclusion and exclusion criteria of papers and a total of 12 papers were included after quality evaluation. Then we conducted the meta-analysis with RevMan5.0 software. The results showed that compared with the control group, the abnormal rate declined in the ganglioside-treated group (relative risk (RR)=0.27, 95% confidence interval (CI)= 0.05– More >

  • Open Access

    ABSTRACT

    Evaluation of Fatigue Performance in Welded Structures by Microstructure-Based Simulation

    Takayuki Shiraiwa*, Fabien Briffod, Manabu Enoki

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.22, No.2, pp. 124-124, 2019, DOI:10.32604/icces.2019.05311

    Abstract The purpose of this study is to evaluate fatigue performances of welded structures using numerical simulations. The fatigue life of welded joint is complicatedly affected by various factors such as geometries, defects, residual stress and microstructure. Conventional fatigue life assessments are generally based on fracture mechanics and predict the fatigue life for long crack propagation. In order to predict the total fatigue life more accurately, it is necessary to consider the lifetime for crack initiation and microstructually short crack (MSC) growth. In this study, a numerical framework to predict the fatigue life including crack initiation,… More >

  • Open Access

    ABSTRACT

    Numerical Evaluations of Parallelization Efficiencies of Communication Avoiding Krylov Subspace Method for Large Sparse Linear System

    Akira Matsumoto1,*, Taku Itoh2, Soichiro Ikuno1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.21, No.2, pp. 43-43, 2019, DOI:10.32604/icces.2019.05496

    Abstract In this study, an improvement technique of convergence property of Communication Avoiding (CA) Kyrlov subspace method is proposed, and parallelization efficiencies of CA Krylov subspace method is numerically investigated. As is known that most of all the procedures of the Krylov subspace method are constituted by addition of vectors, inner products and multiplication of matrices and vectors. These operations are very easy to derive a parallelization efficiency. However, the candidate coefficient matrices of linear system obtained from the numerical analysis such as Finite Element Method are large sparse matrices, and communications occur between Processing Units… More >

  • Open Access

    ABSTRACT

    Crack Propagation-Based Fatigue Evaluation of Rib-to-Deck Welded Joints of Orthotropic Steel Bridge Deck by Using Schwartz-Neuman Alternating Method

    Yabin Yang, Guangyu Shi*

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.21, No.2, pp. 35-35, 2019, DOI:10.32604/icces.2019.05623

    Abstract The efficient and high performance orthotropic steel decks have been widely used in long span bridges over the world. The initial defects at welded joints of orthotropic steel bridge decks will undergo fatigue failure under the action of live load of moving vehicles on the bridge decks. And the fatigue cracks at the rib-to-deck welded joints are the most dangerous cracks for the orthotropic steel bridge decks. Therefore, the fatigue life evaluation of the rib-to-deck welded joints is very important for the safety of orthotropic steel bridge decks. This paper presents a crack propagation-based model… More >

  • Open Access

    ARTICLE

    Evaluation of Mechanical Properties of Cross-Laminated Timber with Different Lay-ups Using Japanese Larch

    Yingchun Gong1,#,*, Fenglu Liu2,#, Zhaopeng Tian1, Guofang Wu1, Haiqing Ren1, Cheng Guan2

    Journal of Renewable Materials, Vol.7, No.10, pp. 941-956, 2019, DOI:10.32604/jrm.2019.07354

    Abstract Japanese larch is one of the main plantation tree species in China. A lack of engineered wood products made by Japanese larch , limits its application in wood structures. In this study, based on optimum process para meters, such as pressure (1.2 MPa), adhesive spread rate (200 g/m 2 ) and adhesive (one component polyurethane), the mechanical properties of Japanese larch made cross laminated timber ( with different lay ups were evaluated by means of the static method . Results of this study show ed that variations in lay ups significant ly affected the mechanical… More >

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