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Journal of Oceanology and Limnology 2021年第1期39卷 56-63页

作者： Qian LIU Xiaodong SHANG xiaohui xie School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China Southern Marine Science and Engineering Guangdong Laboratory Guangzhou 511458China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou 310000China

Near-diurnal vertically-standing waves with high vertical wavenumbers k z were observed in the velocity and shear fi elds from a set of 75-d long ADCP moored in the northeastern South China Sea(SCS)away from the“critical”latitude of 28.8°.These enhanced near-diurnal internal waves followed a fortnightly spring-neap ***,they always happened during semidiurnal spring tides rather than diurnal springs although strong diurnal internal tides with the fortnightly spring-neap cycle were prevailing,suggesting that they were generated via subharmonic instability(PSI)of dominant semidiurnal M 2 internal *** two semidiurnal internal tidal waves with opposite vertical propagation direction intersected,both semidiurnal subharmonic and super harmonic waves were largely intensifi *** observed maximum diurnal velocity amplitudes were up to 0.25 m/*** kinetic energy and shear spectra further suggested that frequencies of daughter waves were not always perfectly equal to M 2/*** superposition of two daughter waves with nearly equal frequencies and nearly opposite k z in a PSI-triad leaded to the vertically-standing waves.

关键词： internal tides South China Sea(SCS) resonant interactions rotary spectra parametric subharmonic instability

Tides and Turbulent Mixing in the North of Taiwan Island

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Advances in Atmospheric Sciences 2019年第3期36卷 313-325,341页

作者： Xiangzhou SONG Dexing WU xiaohui xie State Oceanic Administration Ministry of Nat-ural Resources Physical Oceanography Laboratory Ocean University of China National Marine Environmental Forecasting Center State Oceanic Administration Horn Point Laboratory University of Maryland Center for Environmental Science

Microstructure and hydrological profiles were collected along two cross-shelf sections from the deep slope to the shallow water in the north of Taiwan Island in the summer of *** the tidal currents on the shelf were dominated by the barotropic tide with the current ellipse stretched across the shelf,significant internal tides were observed on the *** depth-mean turbulent kinetic energy(TKE)dissipation rate on the shelf was 10^-6W kg^-1,corresponding to a diapycnal diffusivity of 10^-2 m^2s^-*** depth-mean TKE dissipation rate on the slope was 1×10^-7 Wkg^-1,with diapycnal diffusivity of 3×10^-4m^2s^-*** shear instability associated with internal tides largely contributed to the TKE dissipation rate on the slope from the surface to 150 m,while the enhanced turbulence on the shelf was dominated by tidal or residual current dissipations caused by friction in the thick bottom boundary layer(BBL).In the BBL,the Ekman currents associated with the northeastward Taiwan Warm Current were identified,showing a near-bottom velocity spiral,which agreed well with the analytical bottom Ekman solution.

关键词： microstructure observations turbulent mixing internal tides bottom boundary layer bottom Ekman spiral

Modified parameterization for near-inertial waves

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Acta Oceanologica Sinica 2022年第10期41卷 41-53页

作者： Weiqi Hong Lei Zhou xiaohui xie Han Zhang Changrong Liang School of Oceanography Shanghai Jiao Tong UniversityShanghai200030China Southern Marine Science and Engineering Guangdong Laboratory(Zhuhai) Zhuhai519082China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMinistry of Natural ResourcesHangzhou310012China Fujian Provincial Key Laboratory for Coastal Ecology and Environmental Studies Xiamen UniversityXiamen361102China State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou510301China

The near-inertial waves(NIWs)are important for energy cascade in the *** are usually significantly reinforced by strong winds,such as *** to relatively coarse resolutions in contemporary climate models,NIWs and associated ocean mixing need to be *** this study,a parameterization for NIWs proposed by Jochum in 2013(J13 scheme),which has been widely used,is compared with the observations in the South China Sea,and the observations are treated as model *** normal conditions,the J13 scheme performs ***,there are noticeable discrepancies between the J13 scheme and observations during *** Typhoon Kalmaegi in 2014,the inferred value of the boundary layer is deeper in the J13 scheme due to the weak near-inertial velocity shear in the *** typhoon,the spreading of NIWs beneath the upper boundary layer is much faster than the theoretical prediction of inertial gravity waves,and this fast process is not rendered well by the J13 *** addition,below the boundary layer,NIWs and associated diapycnal mixing last longer than the direct impacts of typhoon on the sea *** the energy dissipation and diapycnal mixing below the boundary layer are bounded to the surface winds in the J13 scheme,the prolonged influences of typhoon via NIWs in the ocean interior are missing in this *** on current examination,modifications to the J13 scheme are proposed,and the modified version can reduce the discrepancies in the temporal and vertical structures of diapycnal mixing.

关键词： near-inertial waves parameterization ocean mixing upper ocean boundary layer typhoon

Robust and Passive Motion Detection with COTS WiFi Devices

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Tsinghua Science and Technology 2017年第4期22卷 345-359页

作者： Hai Zhu Fu Xiao Lijuan Sun xiaohui xie Panlong Yang Ruchuan Wang the College of Computer Nanjing University of Posts and Telecommunications the Jiangsu High Technology Research Key Laboratory for Wireless Sensor Networks Key Lab of Broadband Wireless Communication and Sensor Network Technology of Ministry of Education and College of Computer Nanjing University of Posts and Telecommunications the College of Computer Science and Technology University of Science and Technology of China

Device-free Passive（DfP） detection has received increasing attention for its ability to support various pervasive applications. Instead of relying on variable Received Signal Strength（RSS）, most recent studies rely on finer-grained Channel State Information（CSI）. However, existing methods have some limitations, in that they are effective only in the Line-Of-Sight（LOS） or for more than one moving individual. In this paper, we analyze the human motion effect on CSI and propose a novel scheme for Robust Passive Motion Detection（R-PMD）. Since traditional low-pass filtering has a number of limitations with respect to data denoising, we adopt a novel Principal Component Analysis（PCA）-based filtering technique to capture the representative signals of human motion and extract the variance profile as the sensitive metric for human detection. In addition, existing schemes simply aggregate CSI values over all the antennas in MIMO systems. Instead, we investigate the sensing quality of each antenna and aggregate the best combination of antennas to achieve more accurate and robust detection. The R-PMD prototype uses off-the-shelf WiFi devices and the experimental results demonstrate that R-PMD achieves an average detection rate of 96.33% with a false alarm rate of 3.67%.

关键词： device-free passive detection Received Signal Strength(RSS) channel state information MIMO

Modal structure and propagation of internal tides in the northeastern South China Sea

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Acta Oceanologica Sinica 2019年第9期38卷 12-23页

作者： Qian Liu xiaohui xie Xiaodong Shang Guiying Chen Hong Wang School of Naval Architecture and Ocean Engineering Jiangsu University of Science and Technology Zhenjiang 212003 China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources Hangzhou 310012 China State Key Laboratory of Tropical Oceanography South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou 510301 China

The evolution of energy, energy flux and modal structure of the internal tides (ITs) in the northeastern South China Sea is examined using the measurements at two moorings along a cross-slope section from the deep continental slope to the shallow continental shelf. The energy of both diurnal and semidiurnal ITs clearly shows a ~14-day spring-neap cycle, but their phases lag that of barotropic tides, indicating that ITs are not generated on the continental slope. Observations of internal tidal energy flux suggest that they may be generated at the Luzon Strait and propagate west-northwest to the continental slope in the northwestern SCS. Because the continental slope is critical-supercritical with respect to diurnal ITs, about 4.6 kJ/m^2 of the incident energy and 8.7 kW/m of energy flux of diurnal ITs are reduced from the continental slope to the continental shelf. In contrast, the semidiurnal internal tides enter the shelf because of the sub-critical topography with respect to semidiurnal ITs. From the continental slope to the shelf, the vertical structure of diurnal ITs shows significant variation, with dominant Mode 1 on the deep slope and dominant higher modes on the shelf. On the contrary, the vertical structure of the semidiurnal ITs is stable, with dominant Mode 1.

关键词： South China Sea internal tides propagation scattering modal structure

Identification of a novel MYO1D variant associated with laterality defects,congenital heart diseases,and sperm defects in humans

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Frontiers of Medicine 2024年第3期18卷 558-564页

作者： Zhuangzhuang Yuan Xin Zhu xiaohui xie Chenyu Wang Heng Gu Junlin Yang Liangliang Fan Rong Xiang Yifeng Yang Zhiping Tan Department of Cardiovascular Surgery The Second Xiangya Hospital of Central South UniversityChangsha410011China Clinical Center for Gene Diagnosis and Therapy The Second Xiangya Hospital of Central South UniversityChangsha410011China Department of Cell Biology School of Life SciencesCentral South UniversityChangsha410013China Department of Gynecology and Obstetrics Xiangya Hospital of Central South UniversityChangsha410008China

The establishment of left–right asymmetry is a fundamental process in animal *** with this process leads to a range of disorders collectively known as laterality defects,which manifest as abnormal arrangements of visceral *** patients with laterality defects,congenital heart diseases(CHD)are *** multiple model organisms,extant research has established that myosin-Id(MYO1D)deficiency causes laterality *** study investigated over a hundred cases and identified a novel biallelic variant of MYO1D(NM_015194:c.1531G>A;p.D511N)in a consanguineous family with complex CHD and laterality *** examination of the proband revealed asthenoteratozoospermia and shortened ***,the effects of the D511N variant and another known MYO1D variant(NM_015194:c.2293C>T;p.P765S)were *** assessment showed that both enhance the interaction withβ-actin and ***,this study revealed the genetic heterogeneity of this rare disease and found that MYO1D variants are correlated with laterality defects and CHD in ***,this research established a connection between sperm defects and MYO1D *** offers guidance for exploring infertility and reproductive health *** findings provide a critical basis for advancing personalized medicine and genetic counseling.

关键词： MYO1D laterality defect congenital heart disease sperm defect β-actin SPAG6

Identifying viruses from metagenomic data using deep learning

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Quantitative Biology 2020年第1期8卷 64-77页

作者： Jie Ren Kai Song Chao Deng Nathan AAhlgren Jed AFuhrman Yi Li xiaohui xie Ryan Poplin Fengzhu Sun Quantitative and Computational Biology Program University of Southern CaliforniaLos AngelesCA 90089USA School of Mathematics and Statistics Qingdao UniversityQingdao 266071China Department of Biology Clark UniversityWorcesterMA 01610USA Department of Biological Sciences University of Southern CaliforniaLos AngelesCA 90089USA Department of Computer Science University of CaliforniaIrvineCA 92697USA Google Inc. Mountain ViewCA 94043USA

Background:The recent development of metagenomic sequencing makes it possible to massively sequence microbial genomes including viral genomes without the need for laboratory *** reference-based and gene homology-based methods are not efficient in identifying unknown viruses or short viral sequences from metagenomic ***:Here we developed a reference-free and alignment-free machine learning method,DeepVirFinder,for identifying viral sequences in metagenomic data using deep ***'.Trained based on sequences from viral RefSeq discovered before May 2015,and evaluated on those discovered after that date,DeepVirFinder outperformed the state-of-the-art method VirFinder at all contig lengths,achieving AUROC 0.93,0.95,0.97,and 0.98 for 300,500,1000,and 3000 bp sequences *** the training data with additional millions of purified viral sequences from metavirome samples further improved the accuracy for identifying virus groups that are *** DeepVirFinder to real human gut metagenomic samples,we identified 51,138 viral sequences belonging to 175 bins in patients with colorectal carcinoma(CRC).Ten bins were found associated with the cancer status,suggesting viruses may play important roles in ***:Powered by deep learning and high throughput sequencing metagenomic data,DeepVirFinder significantly improved the accuracy of viral identification and will assist the study of viruses in the era of metagenomics.

关键词： metagenome deep learning virus identification machine learning

Advances in research of the mid-deep South China Sea circulation

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Science China Earth Sciences 2019年第12期62卷 1992-2004页

作者： Dongxiao WANG Qiang WANG Shuqun CAI Xiaodong SHANG Shiqiu PENG Yeqiang SHU Jingen XIAO xiaohui xie Zhiwei ZHANG Zhiqiang LIU Jian LAN Dake CHEN Huijie XUE Guihua WANG Jianping GAN Xinong xie Rui ZHANG Hui CHEN Qingxuan YANG State Key Laboratory of Tropical Oceanography South China Sea Institute of OceanologyChinese Academy of SciencesGuangzhou 510301China School of Marine Science and Technology Tianjin UniversityTianjin 300072China State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyMNRHangzhou 310012China Key Laboratory of Physical Oceanography MOEOcean University of ChinaQingdao 266003China Department of Ocean Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Institute of Atmospheric Sciences Fudan UniversityShanghai 200438China Department of Mathematics and Division of Environment Hong Kong University of Science and TechnologyHong Kong 999077China College of Marine Science and Technology China University of GeosciencesWuhan 430074China College of Oceanic and Earth Xiamen UniversityXiamen 361102China

The South China Sea(SCS)is a large marginal sea connecting the Indian and Pacific *** the factors of monsoons,strait transport,and varied bathymetry,the SCS presents a three-layer structure and strong diapycnal mixing which is far greater than that in the open *** analysis and observations reveal that internal tides,internal solitary waves,and strong winds are the sources of the strong mixing in the northern SCS.A major consequence of the strong mixing is an active mid-deep circulation *** system promotes exchange of water between the SCS and adjacent oceans,and also regulates the upper layer of wind-driven circulation,making the 3 dimensional SCS circulation clearly different from that in other tropical and subtropical marginal *** mass transport capacity of the mid-deep circulation has a substantial impact on marine sedimentation,the biogeochemical cycle,and other processes in the *** paper summarizes the recent advances in middeep sea circulation dynamics of the SCS,and discusses the opportunities and challenges in this area.

关键词： Mid-deep South China Sea circulation Diapycnal mixing Multi-scale processes interaction

新型冠状病毒肺炎合并Stevens-Johnson综合征样皮损一例

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中华皮肤科杂志 2020年第8期53卷 649-650页

作者：谢小慧陈辉华中科技大学同济医学院附属同济医院皮肤科武汉430030

患者女,22岁,因间断发热、咳嗽伴呕吐13 d于2020年2月12日至华中科技大学同济医学院附属同济医院就诊。患者于2020年1月29日晨起出现发热,最高38.6℃,伴畏寒、嗜睡、咳嗽,1月31日出现呕吐、腹泻,自服复方金银花颗粒、解毒感冒颗粒、藿... 详细信息

患者女,22岁,因间断发热、咳嗽伴呕吐13 d于2020年2月12日至华中科技大学同济医学院附属同济医院就诊。患者于2020年1月29日晨起出现发热,最高38.6℃,伴畏寒、嗜睡、咳嗽,1月31日出现呕吐、腹泻,自服复方金银花颗粒、解毒感冒颗粒、藿香正气丸、阿莫西林,症状无明显好转。2月1日在湖北武昌医院就诊,2次肺部CT检查均提示"两肺可见多发散在小斑片状磨玻璃样高密度模糊影",且2月5日第2次CT检查提示"两肺感染性病灶较前增多",考虑为"新型冠状病毒肺炎(COVID-19)"。

关键词：附属同济医院同济医学院肺炎阿莫西林

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清代湘西改土归流州县法律安排与司法实践

广西民族大学学报（哲学社会科学版） 2020年第4期42卷 47-54页

作者：谢晓辉中山大学历史学系、中山大学历史人类学研究中心广东广州510275

通过对湘西改土归流区与新开发苗疆区刑科题本的比较研究,研究考察了清代这两大类文化异质地区在司法层面如何整合入王朝国家的大一统秩序,指出清廷在这些地区并未真正实施"一体化"治理,而是推行了差异化的法律策略,且这种制度安排也跟... 详细信息

通过对湘西改土归流区与新开发苗疆区刑科题本的比较研究,研究考察了清代这两大类文化异质地区在司法层面如何整合入王朝国家的大一统秩序,指出清廷在这些地区并未真正实施"一体化"治理,而是推行了差异化的法律策略,且这种制度安排也跟两类地区原有纠纷解决传统与机制密切相关。得益于土司时期的管理体系与纠纷解决机制,原土司区在实施州县治理后,能够较为顺利地整合入王朝国家的秩序。但在原"无君长不相统属"的苗区,清廷遭遇了较大挫折,较平稳的社会与司法秩序在很大程度上依赖乾嘉苗民起义后地方军事化、多元化管理这类高成本管控才勉强重建。

关键词：湘西改土归流苗疆法律安排司法实践