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Search for Double γ-Vibrational Bands in Neutron-Rich ^105Mo Nucleus

Chinese Physics Letters 2006年第12期23卷 3222-3225页

作者：丁怀博朱胜江 J. H. Hamilton A. V. Ramayya J. K. Hwang Y. X. Luo J. O. Rasmussen I. Y. Lee 车兴来陈永静李明亮 Department of Physics Tsinghua University Beijing 100084 Department of Phvsics Vanderbilt University Nashville Tennessee 37235 USA Lawrence Berkeley National Laboratory Berkeley California 94720 USA

Levels in the neutron-rich ^105Mo nucleus have been investigated by observing prompt γ-rays following the spontaneous fission fragments of^252 Cf with the Gammasphere detector array. The yrast band has been confirmed and updated. The other two collective bands with the band head levels at 870.5 and 1534.6 keV are newly observed, and they are suggested as the candidates for one-phonon K= 9/2 and two-phonon K = 13/2 double γ-vibrational bands, respectively. systematic characteristics of these bands have been discussed.

关键词： Double γ-Vibrational Bands systematic characteristics

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Synthesize dual goals:A study on China's ecological poverty alleviation system

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Journal of Integrative Agriculture 2021年第4期20卷 1042-1059页

作者： LEI Ming YUAN Xuan-yu YAO Xin-yan Institute on Poverty Research Peking UniversityBeijing 100871P.R.China Guanghua School of Management Peking UniversityBeijing 100871P.R.China

How to break the vicious cycle of poverty and ecological degradation is widely concerned and *** the poverty alleviation practices in China,ecological poverty alleviation(EPA)is regarded as an important way to synthesize the dual goals of poverty reduction and environmental protection and to achieve the win-win *** Chinese researchers have fruitful research achievements on EPA yet they do not recognize that EPA is not a simple combination of various policies,but a complex system involving multiple policy instruments,governmental agencies,social forces,and ***,few studies abroad illustrate EPA in *** focus more on specific components of EPA such as payment for ecosystem services while overlooking the integral concept of EPA and practices from *** on field research in Guizhou Province,China,this paper proposes a framework of EPA with an effective multi-agent and co-government system,for demonstrating the concept and practice of *** case analysis,we illustrate key elements in this system and their relationships,and how they play a vital role in pursuing win-win outcomes in environmental protection and poverty *** three dimensions of this EPA system have been *** first is to strengthen the interaction among the *** efforts should be made for establishing an efficient communication routine and a stable relationship among their *** second is to reinforce the connection between diverse elements in each policy subsystem,such as the systematization and coordination of the ecological industry development,the systematization of the links before,during,and after the relocation of ecological immigrants,*** third is to promote the interactions between the three subsystems,so that ecological enhancement,ecological compensation,and industrial development,and migration and relocation can promote each other,and ultimately promote the coordination of poverty alleviation and ecological protec

关键词： poverty alleviation ecological poverty alleviation systematic characteristics China interaction

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