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Experimental Approach to Explosive Nucloeosynthesis with RI Beams
S. Kubono,Y. Yamaguchi,G. Amadio,S. Hayakawa,Y. Wakabayashi,Y. Kurihara,J. J. He,A. Saito,H. Fujikawa,Le Hong Khiem,M. Niikura,T. Teranishi,N. Iwasa,S. Kato,S. Nishimura,C. S. Lee,Y. K. Kwon,I. S. Hah 한국물리학회 2009 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.54 No.1
Experimental efforts to investigate stellar reactions under high-temperature and high density conditions have been made as a major program using the RI beams from the Center for Nuclear Study (CNS) low-energy in-flight RI beam separator (CRIB) at University of Tokyo in order to understand the evolution of the universe, as well as various stellar phenomena. Specically, two subjects of hydrogen burning are discussed here. One is a reaction study of the pp-chain and the second is of the explosive hydrogen burning, the rp-process. Some s-wave resonances have been identified by the thick target method in the crucial reaction processes in the hydrogen burning. The resonant scattering with the thick target method also succeeded in identifying inelastic resonant scattering, giving proton widths for the first excited state of the target nucleus. This provided very efficiently the reaction rate estimate for the process under high-temperature equilibrium conditions. Possibilities of the CRIB facility in near future are also briey discussed. Experimental efforts to investigate stellar reactions under high-temperature and high density conditions have been made as a major program using the RI beams from the Center for Nuclear Study (CNS) low-energy in-flight RI beam separator (CRIB) at University of Tokyo in order to understand the evolution of the universe, as well as various stellar phenomena. Specically, two subjects of hydrogen burning are discussed here. One is a reaction study of the pp-chain and the second is of the explosive hydrogen burning, the rp-process. Some s-wave resonances have been identified by the thick target method in the crucial reaction processes in the hydrogen burning. The resonant scattering with the thick target method also succeeded in identifying inelastic resonant scattering, giving proton widths for the first excited state of the target nucleus. This provided very efficiently the reaction rate estimate for the process under high-temperature equilibrium conditions. Possibilities of the CRIB facility in near future are also briey discussed.
Age-related differences in the pathogenesis of chronic rhinosinusitis
Cho, S.H.,Hong, S.J.,Han, B.,Lee, S.H.,Suh, L.,Norton, J.,Lin, D.,Conley, D.B.,Chandra, R.,Kern, R.C.,Tan, B.K.,Kato, A.,Peters, A.,Grammer, L.C.,Schleimer, R.P. Mosby 2012 The Journal of allergy and clinical immunology Vol.129 No.3
Although chronic rhinosinusitis (CRS) significantly affects the quality of life of elderly people, the inflammatory mechanisms of chronic rhinosinusitis in the elderly have not been well studied. This study demonstrates that despite the higher severity of CRS observed in elderly patients, they had lower eosinophilic cationic protein compared to non-elderly CRS patients. In addition, S100A8/9 was significantly decreased in CRS with aging process, suggesting that epithelial barrier dysfunction may continue to play an important role in the pathogenesis of CRS while eosinophilic inflammation may subside with age.
최진형(Jin Hyung Choi),도덕희(Deog Hee Doh),조효제(Hyo Je Jo),이연원(Yeon Won Lee),Suzuki K,Kato S 한국가시화정보학회 2010 한국가시화정보학회지 Vol.8 No.2
Flow characteristics of a free-horizontal-ax is-turbine (FHAT) current power generation system have been investigated by the use of a volumetric PTV. Three types of FHAT system (S50, SE50, S65) have been tested under the current speed 1.35 knot, 1.5 knot and 2 knot. The width of the blade installed around the body is 50 ㎜. Based upon the power generation characteristics of the FHAT, the flow features of the blade have been investigated. Among the three models it has been verified that the S65 is the most appropriate for power generations.
Volumetric PTV에 의한 수평자유축 조류발전 시스템의 3차원 유동특성 분석
최진영(Jin Hyung Choi),도덕희(Deog Hee Doh),조효제(Hyo Je Jo),이연원(Yeon Won Lee),Suzuki K.,Kato S. 한국가시화정보학회 2009 한국가시화정보학회 학술발표대회 논문집 Vol.2009 No.11
Flow characteristics of a free-horizontal-axis-turbine(FHAT) current power generation system have been investigated by the use of a volumetric PTV. Three types of FHAT system have been tested under the current speed 1.35knot, 1.5knot and 2knot. The width of the blade installed around the body is 50mm. The load test has been carried out under the same flow conditions. Among the models it has been verified that the S65 is most appropriate for power generations.
Measurements of the absolute branching fractions of B+→Xcc¯K+ and B+→D¯(*)0π+ at Belle
Kato, Y.,Iijima, T.,Adachi, I.,Aihara, H.,Al Said, S.,Asner, D. M.,Aulchenko, V.,Aushev, T.,Ayad, R.,Babu, V.,Badhrees, I.,Bakich, A. M.,Bansal, V.,Barberio, E.,Behera, P.,Bhardwaj, V.,Bhuyan, B.,Bisw American Physical Society 2018 Physical Review D Vol.97 No.1
<P>We present the measurement of the absolute branching fractions of B+ -> Xc (c) over barK+ and B+ -> (D) over bar ((*)0)pi(+) decays, using a data sample of 772 x 10(6) B (B) over bar pairs collected at the gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Here, X-c (c) over bar denotes eta(c), J/psi, chi(c0), chi(c1), eta(c) (2S), psi(2S), psi(3770), X(3872), and X(3915). We do not observe significant signals for X(3872) or X(3915) and set the 90% confidence level upper limits at B(B+ -> X(3872)K+) < 2.6 x 10(-4) and B(B+ -> X(3915)K+) < 2.8 x 10(-4). These represent the most stringent upper limit for B(B+ -> X(3872)K+) to date and the first limit for B(B+ -> X(3915)K+). The measured branching fractions for eta(c) and eta(c)(2S) are the most precise to date, B(B+ -> eta K-c(+)) = (12.0 +/- 0.8 +/- 0.7) x 10(-4) and B(B+ -> eta(c)(2S)K+) = (4.8 +/- 1.1 +/- 0.3) x 10(-4), where the first and second uncertainties are statistical and systematic, respectively.</P>
Finite Element Analysis of Reinforced Concrete Shear Walls with a Crack under Cyclic Loading
Kato, S.,Ohya, M.,Shimaoka, S.,Takayama, M. Computational Structural Engineering Institute of 2001 Computational structural engineering Vol.1 No.2
The present paper investigates the nonlinear behavior of reinforced concrete shear walls with a crank based on a finite element analysis. The loading type is a horizontal cyclic one such as earthquake loads. Experiments of the shear walls with and without cranks, performed previously to see flow the behavior changes depending on the crank, are compared with the results obtained from the finite element analysis. The finite element analysis is based on an isoparametric degenerated shell formulation. The nonlinear constitutive equations fur concrete are modeled adopting the formulation based on a concept of Ring Typed-Lattice Model. The experiments indicate that the shear walls with a crank have low stiffness and relatively low carrying capacity compared with an ordinary plane shear wall without cranks and that they are more ductile, and the tendency is a1so confirmed based on the finite element analysis. Moreover, a good agreement between the experiments and analyses is obtained, accordingly, it is confined that the present numerical analysis scheme based on the Lattice Model is a powerful one to evaluate the behavior of reinforced concrete shear walls with cranks and without cranks.