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Isomer spectroscopy of neutron-rich <sup>168</sup>Tb<sub>103</sub>
Gurgi, L.A.,Regan, P.H.,Sö,derströ,m, P.-A.,Watanabe, H.,Walker, P.M.,Podolyá,k, Zs.,Nishimura, S.,Berry, T.A.,Doornenbal, P.,Lorusso, G.,Isobe, T.,Baba, H.,Xu, Z.Y.,Sakurai, H.,Sumikama Elsevier 2017 Radiation physics and chemistry Vol.140 No.-
<P>In-flight fission of a 345 MeV per nucleon U-238 primary beam on a 2 mm thick Be-9 target has been used to produce and study the decays of a range of neutron-rich nuclei centred around the doubly mid-shell nucleus Dy-170 at the RIBF Facility, RIKEN, Japan. The produced secondary fragments of interest were identified event by-event using the BigRIPS separator. The fragments were implanted into the WAS3ABI position sensitive silicon active stopper which allowed pixelated correlations between implants and their subsequent beta-decay. Discrete gamma-ray transitions emitted following decays from either metastable states or excited states populated following beta decay were identified using the 84 coaxial high-purity germanium (HPGe) detectors of the EURICA spectrometer, which was complemented by 18 additional cerium-doped lanthanum bromide (LaBr3) fast-timing scintillation detectors from the FATIMA collaboration. This paper presents the internal decay of a metastable isomeric excited state in the odd-odd nucleus Tb-168, which corresponds to a single proton-neutron hole configuration in the valence maximum nucleus Dy-170. These data represent the first information on excited states in this nucleus, which is the most neutron-rich odd-odd isotope of terbium (Z=65) studied to date. Nilsson configurations associated with an axially symmetric, prolate-deformed nucleus are proposed for the Tb-168 ground state the observed isomeric state by comparison with Blocked BCS-Nilsson calculations.</P>
Xu, Z.,Lagg, A.,Solanki, S.,Liu, Y. IOP Publishing 2012 The Astrophysical journal Vol.749 No.2
<P>Vector magnetic fields of an active region filament in the photosphere and upper chromosphere are obtained from spectro-polarimetric observations recorded with the Tenerife Infrared Polarimeter (TIP II) at the German Vacuum Tower Telescope. We apply Milne-Eddington inversions on full Stokes vectors of the photospheric Si I 1082.7 nm and the upper chromospheric He I triplet at 1083.0 nm to obtain the magnetic field vector and velocity maps in two atmosphere layers. We find that (1) a complete filament was already present in H alpha at the beginning of the TIP II data acquisition. Only a partially formed one, composed of multiple small threads, was present in He I. (2) The AR filament comprises two sections. One shows strong magnetic field intensities, about 600-800 G in the upper chromosphere and 800-1000 G in the photosphere. The other exhibits only comparatively weak magnetic field strengths in both layers. (3) The Stokes V signal is indicative of a dip in the magnetic field strength close to the chromospheric PIL. (4) In the chromosphere, consistent upflows are found along the PIL flanked by downflows. (5) The transversal magnetic field is nearly parallel to the PIL in the photosphere and inclined by 20 degrees-30 degrees in the chromosphere. (6) The chromospheric magnetic field around the filament is found to be in normal configuration, while the photospheric field presents a concave magnetic topology. The observations are consistent with the emergence of a flux rope with a subsequent formation of a filament.</P>
Breeding of Salad Rocket (Eruca stiva Mill.) Varieties for Healthy Functional Proposes
( Z. H. Xu ),( N. T. Vu ),( S. H. Kim ),( I. S. Kim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2014 강원 농업생명환경연구 Vol.26 No.1
Breeding new variety of rocket with low nitrate content and high α-glucosidase inhibitory can help the balance in human diet. Two outstanding lines which considered to be used as Ssam and green for Bibimbap were finally selected, and labeled as ‘Kangwondae Ssam’ and ‘Soyangkang Girl’ respectively. ‘Kangwondae Ssam’ is a new rocket line developed from a low nitrate content genotype (R131) with a nitrate content of 1050 mg/kg of fresh weight. The pungency of leaf is mild and its α-glucosidase inhibitory is 14.9%. The young plants of ‘Kangwondae Ssam’ have a big size of leaf. ‘Soyangkang Girl’ is a new rocket line breed from genotype R96 with a nitrate content of 1680 mg/kg of fresh weight. The young plants of ‘Soyangkang Girl’ have a nice tooth type of leaf and the pungency of leaf is stronger. α-glucosidase inhibitory activity of ‘Soyangkang Girl’ is high (29%).
Xu, Z.Y.,Wu, H.,Liu, X.,Qu, Y.G.,Li, Z.C.,Fang, Q. Korean Nuclear Society 2020 Nuclear Engineering and Technology Vol.52 No.2
Investigations of the commercial aircraft impact effect on nuclear island infrastructures have been drawing extensive attention, and this paper aims to perform the safety assessment of Generation III nuclear power plant (NPP) buildings subjected to typical commercial aircrafts crash. At present Part III, the local damage of the rigid components of aircraft, e.g., engine and landing gear, impacting the steel concrete (SC) structures of NPP containment is mainly discussed. Two typical SC target panels with the thicknesses of 40 mm and 100 mm, as well as the steel cylindrical projectile with a mass of 2.15 kg and a diameter of 80 mm are fabricated. By using a large-caliber air gas gun, both the projectile penetration and perforation test are conducted, in which the striking velocities were ranged from 96 m/s to 157 m/s. The bulging velocity and the maximal deflection of rear steel plate, as well as penetration depth of projectile are derived, and the local deformation and failure modes of SC panels are assessed experimentally. Then, the commercial finite element program LS-DYNA is utilized to perform the numerical simulations, by comparisons with the experimental and simulated projectile impact process and SC panel damage, the numerical algorithm, constitutive models and the corresponding parameters are verified. The present work can provide helpful references for the evaluation of the local impact resistance of NPP buildings against the aircraft engine.