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Sumio Kaizaki,Dai Shirotani,Keiko Toya,Masako Iwamatsu,Yumiko Kato,Mikiko Maki,Takanori Hirami,Hiroshi Seki,Hiroyasu Nakata,Hisako Sato 한양대학교 세라믹연구소 2016 Journal of Ceramic Processing Research Vol.17 No.5
This paper concerns with the synthesis and the luminescence spectra of lanthanide complexes of Eu(III) and/or Eu(II) orTb(III) ions which are embedded into fibrous palygorskite and sepiolite clays in which the magnesium ion are ion exchangedwith lanthanide ions. The He-Cd laser excitation photoluminescence of the present complexes without organic ligands exhibitthe deferration effects. The phosphors with light harvesting ligands such as benzophenone derivatives and 1,10-phenanthrolinegive the fairly strong visible luminescence by UV-A light excitation with a LED black light in a light room under fluorescentlamps. Further, the temperature dependent phosphors with benzophenone derivatives exhibit the stronger luminescence withincreasing the temperature over 100 oC.
Valsalva Aneurysm Filled with Thrombi Mimicking a Cardiac Tumor
Yasuharu Lee,Naoki Mori,Daisuke Nakamura,Takahiro Yoshimura,Masayuki Taniike,Nobuhiko Makino,Hiroyasu Kato,Yasuyuki Egami,Ryu Shutta,Jun Tanouchi,Yoshio Yamada,Masami Nishino 대한심장학회 2012 Korean Circulation Journal Vol.42 No.12
A Valsalva aneurysm filled with thrombi can be difficult to diagnose, because it mimics a cardiac tumor. Both cardiac magnetic resonance imaging (MRI) and transesophageal echocardiogram (TEE) were performed on a patient who showed a low-echoic mass located between the atrial septum and the non-coronary sinus. Based on MRI findings allowing tissue characterization and the accurate location of the mass and the TEE findings of an irregular surface of the mass and a partial defect in the edge of the non-coronary sinus, we diagnosed the mass as a thrombosed Valsalva aneurysm that had perforated the inter-atrial septum. The operative findings coincided with the preoperative di-agnosis. Both MRI and TEE are useful for diagnosing this condition.