发展了一个能够考虑昼夜大气稳定度差异的城市应急重气扩散模型——SLAB_URBAN模型,利用该模型对美国Oklahoma City Joint Urban 2003(JU2003)城市扩散试验进行了模拟,主要关注下风方向不同观测距离的Cmaxu/Q值,并将模型模拟出的Cmaxu/...发展了一个能够考虑昼夜大气稳定度差异的城市应急重气扩散模型——SLAB_URBAN模型,利用该模型对美国Oklahoma City Joint Urban 2003(JU2003)城市扩散试验进行了模拟,主要关注下风方向不同观测距离的Cmaxu/Q值,并将模型模拟出的Cmaxu/Q值与JU2003试验观测的Cmaxu/Q值进行了对比验证。结果表明:SLAB_URBAN模型能够模拟出昼夜不同稳定度条件下城市重气扩散在下风方向浓度的分布状况;SLAB_URBAN模型的统计误差分析显示其模拟结果与观测值较一致;此外,从应急反应和安全角度考虑,SLAB_URBAN模型也符合实际工作的需求。展开更多
Lanping basin was a massif (land massif) in late Palaeozoic Era. The ocean of Jinshajiang separated it from Yangtze plate in east. Lancangjiang ocean separated it from Yunnan—Tibet plate in west. From late Permian Ep...Lanping basin was a massif (land massif) in late Palaeozoic Era. The ocean of Jinshajiang separated it from Yangtze plate in east. Lancangjiang ocean separated it from Yunnan—Tibet plate in west. From late Permian Epoch, the oceanic crust of Jinshajiang subduced the west from east, the one of Lancangjiang down went the east from west, and then the Yunnan—Tibet ancient land gradually closed to the Yangtze. In the end of the Permian Period, two continents and Lanping plate touched together, and the evolution history of the Paleotethys was end. Hercynian orogenic belt in the east and west sides of Lanping had volcanic rock colliding in early—middle Triassic Epoch. In Ladinian in middle Triassic and Carnian in late Triassic, the north side of Lanping basin formed the serial volcanic rock of spilite—quartz keratophyre because mantle\|derived magma causing by delamination rose and mixed with the constituent of continental crust. The volcanic rock overlapped the middle Triassic and late Palaeozoic stratum in angular unconformity. It was the feature of double peak or evolution from the basic to the acid. The race element distribution of volcanic rock was same as the one of tholeiite in island and inter\|arc basin. The rate of lead isotope of the volcanic rock was much higher. These points all distributed above the NHRL in Pb\|Pb. This indicated that the Pb of volcanic rock was the mantle\|derived magma mixed with crust one. The large\|area progression in Lanping rift basin begun in late Carnian.. The east side in Lanping basin developed the sedimentary system that was granule gravel (grit) rock in border facies—limestone in beach facies—black shale, and the middle had black shale, banded siliceous rock, brecciform limestone in late Carnian to Norian. The geochemistry research of siliceous rock showed that the genesis of the chert was hot water. The development of brecciform limestone was related with action of central\|axis rift. The Lanping rift basin went into consuming stage in Rhaetian Epoch of the late Triassic. The basin developed clastic rock bearing coal of continental\|oceanic alternation facies. In early Jurassic, the sedimentary area atrophied further, and the fine lacustrine sediment whose thickness was not great developed in the east of central\|axis. The west stratum of the basin in late Triassic Epoch touched directly with the one in middle Jurassic. Lanping basin was going into another evolution stage that was down\|warped basin.展开更多
The Book of Songs is a book of propriety passing on rites and teaching people by the form of poetry with unique logic and rhetoric.“Guan Ju”is the most typical poem deducing the propriety of humans from the laws of ...The Book of Songs is a book of propriety passing on rites and teaching people by the form of poetry with unique logic and rhetoric.“Guan Ju”is the most typical poem deducing the propriety of humans from the laws of nature,which is acceptable,convinced and obeyed by the people naturally,friendly and eloquently.Therefore,the logic and rhetoric in The Book of Songs can be reconciled and self-consistent in the poetic thinking of the unity of heaven and humans.展开更多
用电子显微镜观察了稀有(鱼句)鲫出血病(Hemorrhage of Gobiocypris rarus)鱼的病理切片及对照鱼的超薄切片。在对照鱼的鳃、肠道、肾脏、脾脏、肌肉和肝脏中没有见到任何病毒颗粒。在病鱼鳃血管内皮细胞质中观察到聚集的直径70nm左右的...用电子显微镜观察了稀有(鱼句)鲫出血病(Hemorrhage of Gobiocypris rarus)鱼的病理切片及对照鱼的超薄切片。在对照鱼的鳃、肠道、肾脏、脾脏、肌肉和肝脏中没有见到任何病毒颗粒。在病鱼鳃血管内皮细胞质中观察到聚集的直径70nm左右的GCHV颗粒,说明鳃是GCHV侵袭的主要器官之一,并讨论了鳃对GCHV敏感在GCHV传播中的意义。还在病鱼肠道,肾脏中观察到成片的病毒颗粒,它们也是GCHV侵袭的主要组织。在病鱼脾脏的电子密度低的细胞质中观察到散在的病毒颗粒。很少见到病毒聚集体,脾脏中的病毒可能是脾脏的吞噬细胞吞噬而来。作者认为在病鱼组织中观察到的大小不同的病毒颗粒是处于不同成熟阶段的GCHV。展开更多
对蛇属鱼类进行形态度量学及主成分分析的研究结果表明 :蛇属共有 6个有效种 ,分别是长蛇 (Sauro gobiodumeriliBleeker)、蛇 (S .dabryiBleeker)、无斑蛇 (S .immaculatusKoller)、细尾蛇 (S .gracilicaudatusYaoetYang)...对蛇属鱼类进行形态度量学及主成分分析的研究结果表明 :蛇属共有 6个有效种 ,分别是长蛇 (Sauro gobiodumeriliBleeker)、蛇 (S .dabryiBleeker)、无斑蛇 (S .immaculatusKoller)、细尾蛇 (S .gracilicaudatusYaoetYang)湘江蛇 (S .xiangjiangensisTang)和光唇蛇 (S .gymnocheilusLo ,YaoetChen)。云南程海蛇和其他地理区域的蛇在形态上没有显著的差异 ,不能单列为一个种。蛇属鱼类种间形态上的差异主要表现在与游泳、摄食有关的躯体纵轴、头部和尾柄的性状特征上 ,这些都是蛇属鱼类长期适应其生活环境的结果。展开更多
文摘发展了一个能够考虑昼夜大气稳定度差异的城市应急重气扩散模型——SLAB_URBAN模型,利用该模型对美国Oklahoma City Joint Urban 2003(JU2003)城市扩散试验进行了模拟,主要关注下风方向不同观测距离的Cmaxu/Q值,并将模型模拟出的Cmaxu/Q值与JU2003试验观测的Cmaxu/Q值进行了对比验证。结果表明:SLAB_URBAN模型能够模拟出昼夜不同稳定度条件下城市重气扩散在下风方向浓度的分布状况;SLAB_URBAN模型的统计误差分析显示其模拟结果与观测值较一致;此外,从应急反应和安全角度考虑,SLAB_URBAN模型也符合实际工作的需求。
文摘Lanping basin was a massif (land massif) in late Palaeozoic Era. The ocean of Jinshajiang separated it from Yangtze plate in east. Lancangjiang ocean separated it from Yunnan—Tibet plate in west. From late Permian Epoch, the oceanic crust of Jinshajiang subduced the west from east, the one of Lancangjiang down went the east from west, and then the Yunnan—Tibet ancient land gradually closed to the Yangtze. In the end of the Permian Period, two continents and Lanping plate touched together, and the evolution history of the Paleotethys was end. Hercynian orogenic belt in the east and west sides of Lanping had volcanic rock colliding in early—middle Triassic Epoch. In Ladinian in middle Triassic and Carnian in late Triassic, the north side of Lanping basin formed the serial volcanic rock of spilite—quartz keratophyre because mantle\|derived magma causing by delamination rose and mixed with the constituent of continental crust. The volcanic rock overlapped the middle Triassic and late Palaeozoic stratum in angular unconformity. It was the feature of double peak or evolution from the basic to the acid. The race element distribution of volcanic rock was same as the one of tholeiite in island and inter\|arc basin. The rate of lead isotope of the volcanic rock was much higher. These points all distributed above the NHRL in Pb\|Pb. This indicated that the Pb of volcanic rock was the mantle\|derived magma mixed with crust one. The large\|area progression in Lanping rift basin begun in late Carnian.. The east side in Lanping basin developed the sedimentary system that was granule gravel (grit) rock in border facies—limestone in beach facies—black shale, and the middle had black shale, banded siliceous rock, brecciform limestone in late Carnian to Norian. The geochemistry research of siliceous rock showed that the genesis of the chert was hot water. The development of brecciform limestone was related with action of central\|axis rift. The Lanping rift basin went into consuming stage in Rhaetian Epoch of the late Triassic. The basin developed clastic rock bearing coal of continental\|oceanic alternation facies. In early Jurassic, the sedimentary area atrophied further, and the fine lacustrine sediment whose thickness was not great developed in the east of central\|axis. The west stratum of the basin in late Triassic Epoch touched directly with the one in middle Jurassic. Lanping basin was going into another evolution stage that was down\|warped basin.
文摘The Book of Songs is a book of propriety passing on rites and teaching people by the form of poetry with unique logic and rhetoric.“Guan Ju”is the most typical poem deducing the propriety of humans from the laws of nature,which is acceptable,convinced and obeyed by the people naturally,friendly and eloquently.Therefore,the logic and rhetoric in The Book of Songs can be reconciled and self-consistent in the poetic thinking of the unity of heaven and humans.
文摘用电子显微镜观察了稀有(鱼句)鲫出血病(Hemorrhage of Gobiocypris rarus)鱼的病理切片及对照鱼的超薄切片。在对照鱼的鳃、肠道、肾脏、脾脏、肌肉和肝脏中没有见到任何病毒颗粒。在病鱼鳃血管内皮细胞质中观察到聚集的直径70nm左右的GCHV颗粒,说明鳃是GCHV侵袭的主要器官之一,并讨论了鳃对GCHV敏感在GCHV传播中的意义。还在病鱼肠道,肾脏中观察到成片的病毒颗粒,它们也是GCHV侵袭的主要组织。在病鱼脾脏的电子密度低的细胞质中观察到散在的病毒颗粒。很少见到病毒聚集体,脾脏中的病毒可能是脾脏的吞噬细胞吞噬而来。作者认为在病鱼组织中观察到的大小不同的病毒颗粒是处于不同成熟阶段的GCHV。
文摘对蛇属鱼类进行形态度量学及主成分分析的研究结果表明 :蛇属共有 6个有效种 ,分别是长蛇 (Sauro gobiodumeriliBleeker)、蛇 (S .dabryiBleeker)、无斑蛇 (S .immaculatusKoller)、细尾蛇 (S .gracilicaudatusYaoetYang)湘江蛇 (S .xiangjiangensisTang)和光唇蛇 (S .gymnocheilusLo ,YaoetChen)。云南程海蛇和其他地理区域的蛇在形态上没有显著的差异 ,不能单列为一个种。蛇属鱼类种间形态上的差异主要表现在与游泳、摄食有关的躯体纵轴、头部和尾柄的性状特征上 ,这些都是蛇属鱼类长期适应其生活环境的结果。
