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A calculation method for finite depth free-surface green function
Liu, Yingyi,Iwashita, Hidetsugu,Hu, Changhong The Society of Naval Architects of Korea 2015 International Journal of Naval Architecture and Oc Vol.7 No.2
An improved boundary element method is presented for numerical analysis of hydrodynamic behavior of marine structures. A new algorithm for numerical solution of the finite depth free-surface Green function in three dimensions is developed based on multiple series representations. The whole range of the key parameter R/h is divided into four regions, within which different representation is used to achieve fast convergence. The well-known epsilon algorithm is also adopted to accelerate the convergence. The critical convergence criteria for each representation are investigated and provided. The proposed method is validated by several well-documented benchmark problems.
A calculation method for finite depth free-surface green function
Yingyi Liu,Hidetsugu Iwashita,Changhong Hu 대한조선학회 2015 International Journal of Naval Architecture and Oc Vol.7 No.2
An improved boundary element method is presented for numerical analysis of hydrodynamic behavior ofmarine structures. A new algorithm for numerical solution of the finite depth free-surface Green function in threedimensions is developed based on multiple series representations. The whole range of the key parameter R/h is dividedinto four regions, within which different representation is used to achieve fast convergence. The well-known epsilonalgorithm is also adopted to accelerate the convergence. The critical convergence criteria for each representation areinvestigated and provided. The proposed method is validated by several well-documented benchmark problems.
Lin, Dan,Shiu, Ling-Po,Liu, Yingyi Korean Association of Child Studies 2016 Child studies in Asia-Pacific context Vol.4 No.1
Speech-print mapping awareness is defined as the awareness of the principles underpinning how speech sound is matched to print symbols. Chinese is unique in that it follows the one syllable one character mapping principle. The present study examined the predictive power of speech-print mapping awareness in young children's word reading. Seventy-four Hong Kong children from the first and second kindergarten years were tested with phonological awareness, visual skills, syllable-level mapping awareness, and Chinese reading ability at Time 1. Chinese reading abilities were tested again 1 year later. It was found that syllable-level mapping awareness predicted Chinese word reading abilities 12 months later. Further, it seemed that the link of syllable mapping to Chinese reading is particularly significant for beginning readers. The findings suggest that understanding the language-specific speech-print mapping principle is critical for reading acquisition at the early stage of reading development.
Dan Lin,Ling-po Shiu,Yingyi Liu 한국아동학회 2016 Child studies in Asia-Pacific context Vol.6 No.2
Speech-print mapping awareness is defined as the awareness of the principles underpinning how speech sound is matched to print symbols. Chinese is unique in that it follows the one syllable one character mapping principle. The present study examined the predictive power of speech.print mapping awareness in young children’s word reading. Seventy-four Hong Kong children from the first and second kindergarten years were tested with phonological awareness, visual skills, syllable-level mapping awareness, and Chinese reading ability at Time 1. Chinese reading abilities were tested again 1 year later. It was found that syllablelevel mapping awareness predicted Chinese word reading abilities 12 months later. Further, it seemed that the link of syllable mapping to Chinese reading is particularly significant for beginning readers. The findings suggest that understanding the language-specific speech. print mapping principle is critical for reading acquisition at the early stage of reading development.