Biliary carcinoma was diagnosed in a 7-year female Persian cat. The presented clinical signs were not conclusive for hepatic neoplasms and shared many other common health problems in cats i.e. anorexia, vomiting and d...Biliary carcinoma was diagnosed in a 7-year female Persian cat. The presented clinical signs were not conclusive for hepatic neoplasms and shared many other common health problems in cats i.e. anorexia, vomiting and dehydration. Blood laboratory analysis showed marked elevation of liver enzymes. Ultrasonography revealed a mixed echogenic pattern with multiple hypoechoic cyst-like cavities. At necropsy, the liver showed diffuse multi-lobulated masses affecting the parenchyma of all the lobes of the liver. Histopathology confirmed the neoplastic nature of the hepatic parenchymatous masses.展开更多
The ultrasonic (US) wave detection and an acoustic emission (AE) linear location system are proposed, which employ fiber Bragg gratings (FBGs) as US wave sensors. In the theoretical analysis, the FBG sensor response t...The ultrasonic (US) wave detection and an acoustic emission (AE) linear location system are proposed, which employ fiber Bragg gratings (FBGs) as US wave sensors. In the theoretical analysis, the FBG sensor response to longitudinal US wave is investigated. The result indicates that the FBG wavelength can be modulated as static case when the grating length is much shorter than US wavelength. The experimental results of standard sinusoidal and spindle wave test agree well with the generated signal. Further research using two FBGs for realizing linear location is also achieved. The maximum linear location error is obtained as less than 5 mm. FBG-based US wave sensor and AE linear location provide useful tools for specific requirements.展开更多
文摘Biliary carcinoma was diagnosed in a 7-year female Persian cat. The presented clinical signs were not conclusive for hepatic neoplasms and shared many other common health problems in cats i.e. anorexia, vomiting and dehydration. Blood laboratory analysis showed marked elevation of liver enzymes. Ultrasonography revealed a mixed echogenic pattern with multiple hypoechoic cyst-like cavities. At necropsy, the liver showed diffuse multi-lobulated masses affecting the parenchyma of all the lobes of the liver. Histopathology confirmed the neoplastic nature of the hepatic parenchymatous masses.
基金supported by the National Natural Science Foundation of China (No. 61074163)the Natural Science Foundation of Shandong Province (No.ZR2011FQ025)the Independent Innovation Fund of Shandong University (No.2010GN066)
文摘The ultrasonic (US) wave detection and an acoustic emission (AE) linear location system are proposed, which employ fiber Bragg gratings (FBGs) as US wave sensors. In the theoretical analysis, the FBG sensor response to longitudinal US wave is investigated. The result indicates that the FBG wavelength can be modulated as static case when the grating length is much shorter than US wavelength. The experimental results of standard sinusoidal and spindle wave test agree well with the generated signal. Further research using two FBGs for realizing linear location is also achieved. The maximum linear location error is obtained as less than 5 mm. FBG-based US wave sensor and AE linear location provide useful tools for specific requirements.
