Junpeng Fan

Tongji Hospital

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The geometrical acoustic method for calculating the echo of targets submerged in a shallow water waveguide

声学学报：英文版 (2012)

Chen Yan Tang Weilin Junpeng Fan

基于图象来源方法和 physicM，声学的方法被开发计算目标的回响的一个几何声学的方法在浅水波导沉没了。事件光线和散布光线被二条边界反映为多次，然后背光线变得无数。全部的 backscattering 地通过总结事件光线和背光线的每联合生产的散布的地被获得。在有范围的 Pekeris 波导的 10m 半径压力版本范围的回响被几何声学的方法计算。与波浪计算的结果相比在可得到的文学的声学的方法，它证明两个平均在一致珍视并且下降趋势。下列结果显示浅水里的有效目标力量 et 和在为范围和某些其它的空间的目标力量 TS 之间的差别绕行目标是小的。然而，一些目标例如的 ETS 锥形与在空间的 TS 相当不同，它能在用传统的声纳方程估计一个目标散布性质导致大错误。与波浪声学的方法相比，几何声学的方法不仅让明确的物理意思而且罐头在浅水波导计算复杂目标的回响。

Echo (communications protocol)

Waveguide

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Possible use of Lingula sp.(Phylum Brachiopoda)as a dissemination strategy to promote sustainable development in Fangchenggang mangrove,China

中国人口资源与环境：英文版 (2014)

Cheewarat Printrakoon Apiwan Kamlung-ek Hangqing

The economic marketability of a brachiopod,Lingula was studied at three coastal mangrove sites,specifically based on socioeconomic parameters from 10 villages that utilized Lingula along Pearl Bay,Beilun Estuary Marine Nature Reserve,China.The significantly highest density of Lingula was at Jiao Dong(48.2±35.14 individual/m~2)whereas the biomass of Lingula was highest(0.76±0.22 g/individual)at Gui Lao Bu.The shell size of the largest specimen was still less than that in other references.The socioeconomic study of the population related to Lingula involved a small group,and no relationship could be determined among the parameters of age range,education level,occupation,and financial status.The total economic value(320,927.4 Yuan)was based on the value of consumption whereas the value from sales was very low as recorded from Shan Xin over a three-month season.Analysis of the results to determine strengths,weaknesses,opportunities,and threats was undertaken to identify the potential of Lingula sp.to be promoted and supported in the market as a novel source of income for the local community who are associated with mangrove resources;and also to examine its potential as a new food source for the rapidly growing population of China.

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Optimization design of foundation excavation for Xiluodu super-high arch dam in China

Journal of Rock Mechanics and Geotechnical Engineering (2015)

Qixiang Junpeng Fan Shaowu Zhou Ning

Arch dam

Foundation (evidence)

Geomechanics

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Seasonal variability in free-living marine nematode community structure in a sandy beach of the Taiping Bay of Qingdao, China

海洋学报：英文版 (2008)

Liu Haibin Zhang Zhinan Junpeng Fan

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Isotopic Chronological Study of the Huangsha-Tieshanlong Quartz Vein- Type Tungsten Deposit and Timescale of Molybdenum Mineralization in Southern Jiangxi Province, China

地质学报：英文版 (2011)

Huang Junpeng Fan Feng Chengyou Chen

Huangsha-Tieshanlong 石英静脉钨 polymetallic 矿石沉积物，在勘探 Yushan metallogenic 带的区域的东方 Ganxian-Yudu 在北 Pangushan-Tieshanlong 钨矿石地里定位了，是在南部的江西省的著名的钨沉积物，中国。从 Tieshanlong 花岗石的锆石的虾坚定的标明日期产出 168.1 的年龄

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Molecular phylogeny and divergence time of Trachypithecus: with implications for the taxonomy of T. phayrei

动物学研究 (2012)

Kai Kai He Naiqing Hu Joseph

The genus Trachypithecus is the most diverse langur taxon, distributed in southwestern China, south and southeastern Asia. In this study, we include 16 recognized Trachypithecus species to reconstruct the phylogeny with particular concern to the taxonomy of the three subspecies of T. phayrei using multiple genes. Our results support a sister-relationship between T. p. phayrei and T. p. shanicus. However, the mitochondrial CYT B gene supported T. p. crepuscula as a distinct species, but the nuclear PRM1 gene suggested a closer relationship between T. p. crepuscula and T. p. phayrei. The incongruence between nuclear and mitochondrial genes suggests that hybridization may have occurred, a fact that would benefit from re-examination using multiple unlinked nuclear genes.

Subspecies

Nuclear gene

Divergence (linguistics)

Sister group

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Capturing uncertainties of the underwater acoustic environment based on an ocean-acoustic coupled model

声学学报：英文版 (2015)

Lianglong Guo Wuhong Zhao Zhao Jianxin

Considering the uncertain effects of temporal and spatial changes in the marine environment on the underwater acoustic environment,we established an ocean-acoustic coupled numerical model and performed a parallel calculation.This model incorporated acoustic calculations into the dynamic ocean,thereby achieving a dynamic forecasting and assessment of the acoustic environment.Furthermore,we adopted the ensemble prediction method to predict the vertical structure of temperature in a classic cross-section,the sound speed of the cross-section of the investigated sea area,and transmission losses.We gave the prediction errors of the sound speed profile as well as the 90%probability interval of transmission losses and the uncertainty histograms of the sound speeds,transmission losses,and sonar ranges at different depths and frequencies.The results reflected the influence of marine temporal and spacial variations on the uncertainties of the underwater acoustic environment,and the results also quantified the uncertainties of the underwater acoustic environment parameters.The experimental results indicate that the method used in this study is able to delineate and quantify the uncertainties of the underwater acoustic environment caused by marine dynamic changes.

Sound transmission class

Underwater Acoustics

Transmission loss

Speed of Sound

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Acoustic scattering from a fluid-filled finite cylindrical shell in water： I. Theory

声学学报：英文版 (2011)

Zheng Zheng Guoyin Junpeng Fan Jun Jun Tang

声学的散布从一沉没由一个事件飞机波浪的充满液体的有限的圆柱的壳 insonified 被学习。散布领域的分析答案与边界条件用有弹性的薄壳理论被导出。由于内部液体的效果，充满液体的阻抗必须增加系统的阻抗。结果证明在 backscattering 地里，僵硬散布仅仅在舷侧和有弹性的散布玩上有大贡献一个主要角色什么时候倾斜的发生。阶段速度的分散曲线显示出那与内部真空条件作比较，除了由纵的波浪的贡献并且砍舷侧附近的波浪一系列内部液体引起的另外的波浪被增加它有大贡献到散布领域。碗 -- 形状回声曲线作为内部液体波浪的贡献在频率角度光谱被介绍。

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Engineering geological conditions and features of geologic hazards in Wudongde reservoir of Jinshajiang River valley

Liu Weijuan Junpeng Fan Jianhua Zhang

There is a great difference between the distribution and evolvement characteristics of slope geological hazard in the same geographical location and climatic conditions , taking the similar structural-genetic connec- tion in Wudongde reservoir area of Jinshajiang River valley for example. In all engineering geological condi- tions , the chronologic age and attitude of strata , and the lithologic association factors control the distributions and evolvement characteristics of slope geological hazard in the studied area. The study shows that the slopes in geological evolution are in different stages. The conclusion helps to understand the types and the intensity of ge-

Lithology

Geologic hazards

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Extinction pattern of reef ecosystems in latest Permian

中国科学通报：英文版 (2007)

Wu Yasheng Junpeng Fan Jiasong Jiang

在 Ziyun 在 aChanghsingian 礁石上二条二叠三叠纪的边界(PTB ) 学习节，贵州省，西南的中国显示结束 -- 礁石生态系统的二叠的集体扑灭发生在二步。第一步是象 calcisponges 和 fusulinids 那样的 allstenotropic 有机体的扑灭在最近二叠(在 Clarkinayini conodont 地区) 。在第一扑灭以后的生物区系简单，包括包括微腹足动物， ostracods，和一些的 eurytropic 有机体小挖洞有机体，或仅仅海藻的地席。Atthe 开始早三叠纪(即 Hindeodus parvus 地区的开始) ，环境变得缺氧，并且微腹足动物统治了生物区系或海藻的地席消失了，它组成了集体扑灭的第二个事件。在第二扑灭以后的生物区系包括小球形的 microproblematica，容忍的某些专业化有机体缺氧或缺氧条件。当环境变得氧化，专业化生物区系被一个统治 microgastropod 的简单生物区系代替。当环境条件进一步改善了时，简单生物区系被一个多样的生物区系被正常大小的 ammonoids，瓣鳃类，和腹足动物代替，代表正常海洋的条件的恢复。有在白云石，意大利和 Meishan 的 PTB 节的比较，非礁石生态系统举办了的浙江省表演一类似集体扑灭在的第一个事件最近二叠。在海洋的血缺氧发生了的情况中，非礁石生态系统有两手准备类似于礁石生态系统的扑灭事件。

Conodont

Extinction (optical mineralogy)

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