The record of cultivated rice from archaeobiotogical evidence in northwestern China 5000 years ago

IEECAS SKLLQG

The earliest archaeobiological evidence of the broadening agriculture in China recorded at Xishanping site in Gansu Province

IEECAS SKLLQG

Boron isotopic fractionation during seawater evaporation

IEECAS SKLLQG

Sea surface temperature reconstruction for the middle Okinawa Trough during the last glacial-interglacial cycle using C-37 unsaturated alkenones

IEECAS SKLLQG

New results on Xi'an-AMS and sample preparation systems at Xi'an-AMS center

IEECAS SKLLQG

Multiple expansions of C-4 plant biomass in East Asia since 7 Ma coupled with strengthened monsoon circulation

IEECAS SKLLQG

Vegetation and climate variations at Taibai, Qinling Mountains in central China for the last 3 500 cal BP

IEECAS SKLLQG

Did an extensive forest ever develop on the Chinese Loess Plateau during the past 130 ka?: a test using soil carbon isotopic signatures

IEECAS SKLLQG

Li~-和Na~-单电子解离过程的研究

采用交叉束方法 ,利用负离子源产生的 3— 19keV的Li- 和Na- 轰击惰性气体靶He ,Ne和Ar ,通过静电偏转和位置灵敏探测器区分碰撞后中性粒子束和负离子束 ,测量了不同碰撞系统的中性粒子计数与相应入射负离子计数的比值R(E) ,并得到R(E)与入射负离子能量、负离子种类和靶原子种类的关系 .

晕核~(11)Be和~(11)Li���能谱

基于自相似结构壳模型,并考虑到单粒子轨道的均方根半径的振动,提出了尺度共振模型。在尺度共振模型中,考虑了晕中子轨道的尺度共振和核实表面的尺度共振。用尺度共振模型成功地计算了~(11)Be和~(11)Li���激发谱。