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Tumor Imaging by Monoclonal Antibodies Labeled with Radioactive Metal Ions
( K. Endo ),( H. Sakahara ),( T. Nakashima ),( M. Koizumi ),( M. Kunimastsu ),( H. Ohta ),( T. Furukawa ),( Y. Ohmomo ),( Y. Arano ),( A. Yokoyama ),( K. Okada ),( O. Yoshida ),( S. Hosoi ),( T’ Nakam 대한핵의학회 1984 핵의학 분자영상 Vol.18 No.2
K. Sugino,M. Ishikawa,K. Yokoyama,Y. Nagaya,G. Chiba,T. Hazama,T. Kugo 한국물리학회 2011 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.59 No.23
In order to improve the prediction accuracy of core performances in the fast reactor core design study, the unified cross-section set has been developed in Japan. The unified cross-section set, which combines a wide range of integral experimental information with differential nuclear data, is produced by using the cross-section adjustment technique based on the Bayesian parameter-estimation theory. A new set ADJ2010 is currently under development. The present paper describes the results of the cross-section adjustment for ADJ2010 which is based on the JENDL-4.0 data. The evaluation of the core design accuracy for a commercial power fast reactor core is also discussed. ADJ2010 will be released soon and will be expected to be utilized for core design of future fast reactors.
Tanaka, K.,Nagaoka, K.,Murakami, S.,Takahashi, H.,Osakabe, M.,Yokoyama, M.,Seki, R.,Michael, C.A.,Yamaguchi, H.,Suzuki, C.,Shimizu, A.,Tokuzawa, T.,Yoshinuma, M.,Akiyama, T.,Ida, K.,Yamada, I.,Yasuhar IOP 2017 Nuclear fusion Vol.57 No.11
<P>Surveys of the ion and electron heat transports of neutral beam (NB) heating plasma were carried out by power balance analysis in He and H rich plasma at LHD. Collisionality was scanned by changing density and heating power. The characteristics of the transport vary depending on collisionality. In low collisionality, with low density and high heating power, an ion internal transport barrier (ITB) was formed. The ion heat conductivity (<I>χ</I> <SUB>i</SUB>) is lower than electron heat conductivity (<I>χ</I> <SUB>e</SUB>) in the core region at <I>ρ</I> < 0.7. On the other hand, in high collisionality, with high density and low heating power, <I>χ</I> <SUB>i</SUB> is higher than <I>χ</I> <SUB>e</SUB> across the entire range of plasma. These different confinement regimes are associated with different fluctuation characteristics. In ion ITB, fluctuation has a peak at <I>ρ</I> = 0.7, and in normal confinement, fluctuation has a peak at <I>ρ</I> = 1.0. The two confinement modes change gradually depending on the collisionality. Scans of concentration ratio between He and H were also performed. The ion confinement improvements were investigated using gyro-Bohm normalization, taking account of the effective mass and charge. The concentration ratio affected the normalized <I>χ</I> <SUB>i</SUB> only in the edge region (<I>ρ</I> ~ 1.0). This indicates ion species effects vary depending on collisionality. Turbulence was modulated by the fast ion loss instability. The modulation of turbulence is higher in H rich than in He rich plasma.</P>
Formation of nano-porous GeO<sub>x</sub> by de-alloying of an Al–Ge–Mn amorphous alloy
Kim, K.C.,Park, S.H.,Na, M.Y.,Chang, H.J.,Kim, W.T.,Mattern, N.,Eckert, J.,Yokoyama, Y.,Kim, K.B.,Kim, D.H. Elsevier 2015 Scripta materialia Vol.104 No.-
<P>The present study shows that nanometer-scale amorphous phase separation occurs by spinodal decomposition of the undercooled liquid in a melt-spun Al<SUB>60</SUB>Ge<SUB>30</SUB>Mn<SUB>10</SUB> alloy, although there is no atomic pair with positive enthalpy of mixing. By adopting a proper de-alloying process, an interconnected nano-porous germanium oxide with an amorphous structure is successfully synthesized. The present study shows that nano-porous amorphous germanium oxide can be easily obtained by de-alloying of Al-based amorphous alloys with nm-scale composition fluctuation.</P>
Application of operating vehicle load to structural health monitoring of bridges
A.K.M. Rafiquzzaman,Koichi Yokoyama 국제구조공학회 2006 Smart Structures and Systems, An International Jou Vol.2 No.3
For health monitoring purpose usually the structure is instrumented with a large scale and multi-channel measurement system. In case of highway bridges, operating vehicle could be utilized to reduce the number of measuring devices. First this paper presents a static damage detection algorithm of using operating vehicle load. The technique has been validated by finite element simulation and simple laboratory test. Next the paper presents an approach of using this technique to field application. Here operating vehicle load data has been used by instrumenting the bridge at single location. This approach gives an upper hand to other sophisticated global damage detection methods since it has the potential of reducing the measuring points and devices. It also avoids the application of artificial loading and interruption of any traffic flow.
Influence of Ripening Stages on the Quality of Whole Crop Silage and Grain Silage of Fodder Rice
Maruyama, S.,Yokoyama, I.,Asai, H.,Sakaguchi, S.,Ohtani, T.,Yokota, H.,Kita, K. Asian Australasian Association of Animal Productio 2005 Animal Bioscience Vol.18 No.3
In high-income Asian countries like Korea and Japan, per capita rice consumption has declined because of the change in consumer' favorite foods from rice to high-cost quality foods. This has forced farmers to reduce rice production. Although fodder rice could be another option to be cultured by farmers, available information concerning rice grain silage has been limited. In the present study, therefore, the difference in the quality of fodder rice silage prepared from either whole crop or grain at different ripening stages was compared. Various supplements were also added into whole crop and grain silages of fodder rice before ensiling, and thereafter, the palatability of prepared silages was determined by beef cattle. At ear emergence stage, the pH values for both grain and whole crop silages were approximately 4.5. In both grain and whole crop silages, the pH values were significantly increased by progressing ripening stages from milk-ripe stage to yellow-ripe stages, and the increase in pH value for grain silage was faster than that for whole crop silage. In the grain silage, the higher lactic acid (LA) content in grain silage seemed to be, the lower pH value was. Both in grain and whole crop silages, pH was significantly decreased by supplementation with LA bacteria. There were no significant differences in feed intake among any treatment groups.
Application of operating vehicle load to structural health monitoring of bridges
Rafiquzzaman, A.K.M.,Yokoyama, Koichi Techno-Press 2006 Smart Structures and Systems, An International Jou Vol.2 No.3
For health monitoring purpose usually the structure is instrumented with a large scale and multichannel measurement system. In case of highway bridges, operating vehicle could be utilized to reduce the number of measuring devices. First this paper presents a static damage detection algorithm of using operating vehicle load. The technique has been validated by finite element simulation and simple laboratory test. Next the paper presents an approach of using this technique to field application. Here operating vehicle load data has been used by instrumenting the bridge at single location. This approach gives an upper hand to other sophisticated global damage detection methods since it has the potential of reducing the measuring points and devices. It also avoids the application of artificial loading and interruption of any traffic flow.
S. Kurita,K. Imai,T.Yokoyama,S.Ohasi 전력전자학회 2019 ICPE(ISPE)논문집 Vol.2019 No.5
In recent years, the switching frequency of power converter is increased due to the progress of the power devices. As the result, passive elements used in power converters can be reduced in the volume. The inductors using dust core material is applied to the PWM inverter to downsize the filter component. In the case of using the dust core inductors, the flux density is saturated for the large inductance current and the inductance parameter is rapidly varied widely due to the inductance current variations. The output characteristics is deteriorated in the case of the conventional control. Two kinds of the deadbeat control methods combined with the disturbance compensation and the inductance estimation with 1MHz multisampling method were proposed to adjust the control gains for the inductance parameter variations. In this paper, the effect of the two kinds methods were verified through simulations and experiments.