Papers by Keyword: Biological Tissues

Abstract: Polarization coherent optical information has a wide range of applications in information coding, communication and bioassay. Based on the characteristics of polarization coherent light, we introduced a method to measure and which were used for information coding in continuous variables coherent optical communication in this paper. Then we introduced an experimental technique for getting the information of polarized light by analysizing the intensity distribution of polarization state in polarization speckle, and how to apply this technology in the identification and analysis of biological tissues. By analysizing a Mueller matrix which is used to characterize the coherent information obtained from the measurement of the Stokes parameters, we can get some properties of biological tissues.

Abstract: According to the electric field intensity of oblique four-needle electrodes (OFNE) in biological tissue, the discrete equations based on the indetermination linear current density were established by the boundary element integral equations (BEIE). The non-uniform distribution of the current flowing from four-needle electrodes to conductive biological tissues was imaged by solving a set of linear equations. Then, the electric field intensity generated by OFNE in biological tissues at any point can be determined through the boundary element method (BEM). It means that this method has an important referenced significance for computing the electric field intensity generated by OFNE in bio-tissue.

Abstract: According to the electric field intensity of oblique twelve -needle electrodes (OTNE) in biological tissue, the discrete equations based on the indetermination linear current density were established by the boundary element integral equations (BEIE). The non-uniform distribution of the current flowing from twelve -needle electrodes to conductive biological tissues was imaged by solving a set of linear equations. Then, the electric field intensity generated by OTNE in biological tissues at any point can be determined through the boundary element method (BEM). It means that this method has an important referenced significance for computing the electric field intensity generated by OTNE in bio-tissue.

Abstract: According to the electric potential of oblique nine-needle electrodes (ONNE) in biological tissue, the discrete equations based on the indetermination linear current density were established by the boundary element integral equations (BEIE). The non-uniform distribution of the current flowing from nine-needle electrodes to conductive biological tissues was imaged by solving a set of linear equations. Then, the potential generated by ONNE in biological tissues at any point can be determined through the boundary element method (BEM). It means that this method has an important referenced significance for computing the potential generated by ONNE in bio-tissue.

Abstract: According to the electric potential of oblique five-needle electrodes (OFNE) in biological tissue, the discrete equations based on the indetermination linear current density were established by the boundary element integral equations (BEIE). The non-uniform distribution of the current flowing from five-needle electrodes to conductive biological tissues was imaged by solving a set of linear equations. Then, the potential generated by OFNE in biological tissues at any point can be determined through the boundary element method (BEM). It means that this method has an important referenced significance for computing the potential generated by OFNE in bio-tissue.

Abstract: To measure optical parameters of biological tissues, support vector machine was adopted. The diffuse reflected light on the surface of the biological tissue corresponding to optical characteristic parameters of human tissue were obtained by Monte Carlo simulation. The nonlinear relationship model had been established between the diffuse reflected light and the optical parameters. The optical parameters were obtained by the support vector machine and the diffuse reflected light. That were compared with the given values of the same sample, and they were coherent basically. It was shown that support vector machine used to measure optical parameters had a high accuracy.