The Experts below are selected from a list of 30903 Experts worldwide ranked by ideXlab platform

Manfred Bayerl - One of the best experts on this subject based on the ideXlab platform.

  • Superficial Tunica Albuginea Rupture as Initial Starting Point of Peyronie’s Disease: A Topic for Interdisciplinary Consideration
    BioMed research international, 2015
    Co-Authors: Ralf Herwig, Manfred Bayerl
    Abstract:

    Peyronie's disease is a connective tissue disorder in the soft tissue of the penis. The underlying cause of Peyronie's disease is not well understood but is thought to be caused by trauma or injury to the penis during sexual intercourse. The purpose of the interdisciplinary cooperation between urological surgery and physics is the development of a physical simulation tool in order to give prognosis of possible tunica albuginea fibre rupture at a certain degree of deviation of the penis. For our group the first challenge was to translate the human organ of the penis into a physical model. Starting and marginal parameters had to be defined, whereby some of them had to be based on assumption, as physical data of the human living tissue have rarely been measured up to now. The algorithm and its dependencies had to be developed. This paper is a first step of a three-dimensional mathematical-physical simulation with the assumption of a 100% filled rigid penis. The calculation gives proof of the hypothesis that the fibre-load-angle of the penis is less than 12 degrees. Thus physical simulation is able to provide the surgeon with a simple instrument to calculate and forecast the risk of the individual patient.

  • superficial tunica albuginea rupture as Initial Starting Point of peyronie s disease a topic for interdisciplinary consideration
    BioMed Research International, 2015
    Co-Authors: Ralf Herwig, Manfred Bayerl
    Abstract:

    Peyronie's disease is a connective tissue disorder in the soft tissue of the penis. The underlying cause of Peyronie's disease is not well understood but is thought to be caused by trauma or injury to the penis during sexual intercourse. The purpose of the interdisciplinary cooperation between urological surgery and physics is the development of a physical simulation tool in order to give prognosis of possible tunica albuginea fibre rupture at a certain degree of deviation of the penis. For our group the first challenge was to translate the human organ of the penis into a physical model. Starting and marginal parameters had to be defined, whereby some of them had to be based on assumption, as physical data of the human living tissue have rarely been measured up to now. The algorithm and its dependencies had to be developed. This paper is a first step of a three-dimensional mathematical-physical simulation with the assumption of a 100% filled rigid penis. The calculation gives proof of the hypothesis that the fibre-load-angle of the penis is less than 12 degrees. Thus physical simulation is able to provide the surgeon with a simple instrument to calculate and forecast the risk of the individual patient.

Yong Liang - One of the best experts on this subject based on the ideXlab platform.

  • CCTA (1) - Rice Kernel Shape Description Using an Improved Fourier Descriptor
    Computer and Computing Technologies in Agriculture V, 2012
    Co-Authors: Hua Gao, Yaqin Wang, Guangmei Zhang, Yong Liang
    Abstract:

    A Fourier descriptor is one of the best methods for describing object boundaries, but there are limitations in describing the boundary of rice kernels using traditional Fourier descriptors. An innovative approach was developed to describe rice kernel boundaries by improving a traditional Fourier descriptor. This radius Fourier descriptor (RFD) uses a radius set for rice kernel images as its basis function, and uses amplitude spectrum of Fourier transform for the radius set as its descriptor. This method only retains the first 9 components of RFD, which is simple and the dimension of the feature vector can be reduced greatly without concern for the Initial Starting Point on the contour. The method was validated in terms of area computation, variety distance calculation, shape description, and detection of broken kernels using a backpropagation (BP) neural network for several varieties of rice kernels. The detection accuracy for whole rice kernels of different samples was 96%-100% and for broken rice kernels was 96.5%.

  • Rice Kernel Shape Description Using an Improved Fourier Descriptor
    2011
    Co-Authors: Hua Gao, Yaqin Wang, Guangmei Zhang, Yong Liang
    Abstract:

    A Fourier descriptor is one of the best methods for describing object boundaries, but there are limitations in describing the boundary of rice kernels using traditional Fourier descriptors. An innovative approach was developed to describe rice kernel boundaries by improving a traditional Fourier descriptor. This radius Fourier descriptor (RFD) uses a radius set for rice kernel images as its basis function, and uses amplitude spectrum of Fourier transform for the radius set as its descriptor. This method only retains the first 9 components of RFD, which is simple and the dimension of the feature vector can be reduced greatly without concern for the Initial Starting Point on the contour. The method was validated in terms of area computation, variety distance calculation, shape description, and detection of broken kernels using a backpropagation (BP) neural network for several varieties of rice kernels. The detection accuracy for whole rice kernels of different samples was 96%-100% and for broken rice kernels was 96.5%.

I.k. Pandita - One of the best experts on this subject based on the ideXlab platform.

  • Improvement of water distribution networks analysis by topological similarity
    Alexandria Engineering Journal, 2016
    Co-Authors: Mahavir Singh, Suraj Krishan Kheer, I.k. Pandita
    Abstract:

    Abstract In this research paper a methodology based on topological similarity is used to obtain Starting Point of iteration for solving reservoir and pipe network problems. As of now Initial Starting Point for iteration is based on pure guess work which may be supported by experience. Topological similarity concept comes from the Principle of Quasi Work (PQW). In PQW the solution of any one problem of a class is used to solve other complex problems of the same class. This paves way for arriving at a unique concept of reference system the solution of which is used to obtain the Starting Point for Starting the iteration process in reservoir and pipe network problems.

Ralf Herwig - One of the best experts on this subject based on the ideXlab platform.

  • Superficial Tunica Albuginea Rupture as Initial Starting Point of Peyronie’s Disease: A Topic for Interdisciplinary Consideration
    BioMed research international, 2015
    Co-Authors: Ralf Herwig, Manfred Bayerl
    Abstract:

    Peyronie's disease is a connective tissue disorder in the soft tissue of the penis. The underlying cause of Peyronie's disease is not well understood but is thought to be caused by trauma or injury to the penis during sexual intercourse. The purpose of the interdisciplinary cooperation between urological surgery and physics is the development of a physical simulation tool in order to give prognosis of possible tunica albuginea fibre rupture at a certain degree of deviation of the penis. For our group the first challenge was to translate the human organ of the penis into a physical model. Starting and marginal parameters had to be defined, whereby some of them had to be based on assumption, as physical data of the human living tissue have rarely been measured up to now. The algorithm and its dependencies had to be developed. This paper is a first step of a three-dimensional mathematical-physical simulation with the assumption of a 100% filled rigid penis. The calculation gives proof of the hypothesis that the fibre-load-angle of the penis is less than 12 degrees. Thus physical simulation is able to provide the surgeon with a simple instrument to calculate and forecast the risk of the individual patient.

  • superficial tunica albuginea rupture as Initial Starting Point of peyronie s disease a topic for interdisciplinary consideration
    BioMed Research International, 2015
    Co-Authors: Ralf Herwig, Manfred Bayerl
    Abstract:

    Peyronie's disease is a connective tissue disorder in the soft tissue of the penis. The underlying cause of Peyronie's disease is not well understood but is thought to be caused by trauma or injury to the penis during sexual intercourse. The purpose of the interdisciplinary cooperation between urological surgery and physics is the development of a physical simulation tool in order to give prognosis of possible tunica albuginea fibre rupture at a certain degree of deviation of the penis. For our group the first challenge was to translate the human organ of the penis into a physical model. Starting and marginal parameters had to be defined, whereby some of them had to be based on assumption, as physical data of the human living tissue have rarely been measured up to now. The algorithm and its dependencies had to be developed. This paper is a first step of a three-dimensional mathematical-physical simulation with the assumption of a 100% filled rigid penis. The calculation gives proof of the hypothesis that the fibre-load-angle of the penis is less than 12 degrees. Thus physical simulation is able to provide the surgeon with a simple instrument to calculate and forecast the risk of the individual patient.

Kuo-liang Chung - One of the best experts on this subject based on the ideXlab platform.

  • Finding shape numbers in parallel
    Pattern Recognition Letters, 1995
    Co-Authors: Kuo-liang Chung
    Abstract:

    Abstract Given a chain-code boundary representation of length n, the shape number of such a boundary is defined as the first difference of smallest magnitude, and is independent of the Initial Starting Point on the boundary. In this paper, we first transform the problem of finding the shape number into the problem of prefix and suffix computations, then a new parallel algorithm is derived for finding the shape number. The derived parallel algorithm can be performed in O(log n) time on a hypercube network with O(n/log n) processors.