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Shape Coexistence in Neutron-De cient Nuclei with Z-82,N-104

IMP & HIRFL Annual Report 2022年第1期 40-42页

作者： Zhang Wenqiang Huang Hao Liu Zhong A.N.Andreyev D.Seweryniak Li Zhihuan Li Jianguo Guo Chenyu D.T.Doherty A.E.Barzakh P.Van Duppen J.G.Cubiss B.Andel S.Antalic M.Block a.bronis M.P.Carpenter P.Copp Ding Bing F.Giacoppo Huang Tianheng Yu Xinghan B.Kindler F.G.Kondev T.Lauritsen Li Guangshun Lu Hongyang B.Lommel P.Mosat Niu Yifei C.Raison W.Reviol G.Savard Wu Hongyi Wang Zhiheng Xu Furong Zeng Quanbo Zhou Xiaohong Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China Department of Physics University of YorkYorkYO105DDUnited Kingdom Physics Division Argonne National LaboratoryArgonneIllinois 60439USA State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Department of Physics University of SurreyGuildfordGU27XHUnited Kingdom Petersburg Nuclear Physics Institute NRC Kurchatov Institute188300 GatchinaRussia KU Leuven Instituut voor Kern-en Stralingsfysica3001 LeuvenBelgium Department of Nuclear Physics and Biophysics Comenius University in Bratislava84248 BratislavaSlovakia GSI Helmholtzzentrum fur Schwerionenforschung Darmstadt Darmstadt64291Germany Lanzhou University Lanzhou 730000China

Neutron-de cient nuclei around mid-shell at N-104 in the lead region provide many cases of shape coexistence and shape isomers^([1,2]).In order to study shape coexistence in this region,prompt and delayed-ray spectroscopy of the^(187)Pb,^(183)Hg,^(188)Bi and^(188)Po nuclei produced by the fusion-evaporation reaction^(50)Cr+^(142)Nd→192Po^(*)has been performed at the Argonne Gas-Filled Analyzer.

关键词： isomers delayed

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Nitrate reductase activity in high-mountain plants:a test across species,growth form and habitat type

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Journal of Plant Ecology 2019年第3期12卷 519-530页

作者： Adam Rajsz bronisław Wojtuń Lucyna Mróz Ludwik Żołnierz Alexander J.Kempers Department of Ecology Biogeochemistry and Environmental ProtectionWrocław Universityul.Kanonia 6/850-328 WrocławPoland Department of Botany and Plant Ecology University of Environmental and Life Sciences.Pl.Grunwaldzki 24a50-363 WrocławPoland Radboud University Nijmegen Institute for Water and Wetland ResearchDepartment of Environmental ScienceHeyendaalseweg 1356525 AJ NijmegenThe Netherlands

Aims For many terrestrial plants,nitrate is the most important form of available soil nitrogen for ***,many plant species,which grow on acidic,ammonium-dominated soils,exhibit a con-stantly low level of nitrate reductase activity(NRA).Little is known about NRA in high-mountain vascular plants in similar *** tested the hypothesis that high-mountain vascular plants in acidic and ammonium-dominated habitats have low levels of *** Twenty-six plant species of the families Asteraceae,Ericaceae,Poaceae,Polygonaceae,Salicaceae,Pinaceae,Ranunculaceae,Woodsiaceae,Cyperaceae,Juncaceae,Rosaceae and Urticaceae representing different growth forms were investigated in seven native and anthropogenic habitats of subalpine and alpine belts of the Karkonosze(Hercynian middle-mountains,Central Europe),with respect to leaf NRA and mineral nitrogen forms in *** was measured by an in vivo assay for the first time directly in the field using portable water *** Findings An NRA study of vascular plants from high mountains is presented for the first time,and most of the studied subalpine and alpine species were subjected to field measurements for the first time *** among species,families,growth forms and habitats for NRA were *** differences reflected mainly the taxonomical position and in part ecological *** analysis confirmed that variance component showed that enzyme activities were mostly explained by plant species and ***,the subalpine and alpine species from their native habitats are characterized by very low and low ability for nitrate *** also compared NRA with Ellenberg’s N val-ues for the studied *** a regression equation,N values of some species were calculated for the first time and corrected for the others.

关键词： nitrate reductase subalpine and alpine habitats Ellenberg's N values the Karkonosze Hercynian middle-mountains

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