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Climate and extrema of ocean waves in the East China Sea

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Science China Earth Sciences 2018年第7期61卷 980-994页

作者： Hailun HE Jinbao SONG Yefei BAI Yao XU Juanjuan WANG fan BI State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of OceanographyState Oceanic AdministrationHangzhou 310012China Ocean College Zhejiang UniversityZhoushan 316021China Department of Ocean and Resources Engineering University of Hawaii at ManoaHonoluluHI 96822USA School of Geographic and Oceanographic Sciences Nanjing UniversityNanjing 210023China National Marine Environment Forecasting Center Beijing 100081China North China Sea Marine Forecasting Center of State Oceanic Administration Qingdao 266061China Shandong Provincial Key Laboratory of Marine Ecological Environment and Disaster Prevention and Mitigation Qingdao 266061China

Wave climate plays an important role in the air-sea interaction over marginal seas. Extreme wave height provides fundamental information for various ocean engineering practices, such as hazard mitigation, coastal structure design, and risk assessment. In this paper, we implement a third generation wave model and conduct a high-resolution wave hindcast over the East China Sea to reconstruct a 15-year wave field from 1988 to 2002 for derivation of monthly mean wave parameters and analysis of extreme wave conditions. The numerical results of the wave field are validated through comparison with satellite altimetry measurements, low-resolution reanalysis, and the ocean wave buoy record. The monthly averaged wave height and wave period show seasonal variation and refined spatial patterns of surface waves in the East China Sea. The climatological significant wave height and mean wave period decrease from the open ocean in the southeast toward the continental area in the northwest, with the pattern generally following the bathymetry. Extreme analysis on the significant wave height at the buoy station indicates the hindcast data underestimate the extreme values relative to the observations. The spatial pattern of extreme wave height shows single peak emerges at the southwest of Ryukyu Island although a wind forcing with multi-core structure at the extreme is applied.

关键词： Wave climate East China Sea Extreme value analysis WaveWatch-lll

心脏动脉旁路手术中手术辅助机器人的模型跟随控制

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光学精密工程 2012年第1期20卷 131-139页

作者：梁帆孟晓风董登峰北京航空航天大学精密仪器科学与光电工程学院北京100191

为了使非体外循环心脏动脉旁路移植(CABG)手术中的手术辅助机器人能快速、准确地跟踪心脏表面手术点的运动,消除心脏与手术工具的相对运动,提出了心脏运动信号的自适应时变线性回归模型,将对心脏信号的跟踪问题转化为对心脏运动信号模... 详细信息

为了使非体外循环心脏动脉旁路移植(CABG)手术中的手术辅助机器人能快速、准确地跟踪心脏表面手术点的运动,消除心脏与手术工具的相对运动,提出了心脏运动信号的自适应时变线性回归模型,将对心脏信号的跟踪问题转化为对心脏运动信号模型的运动跟随问题。应用卡尔曼滤波器动态估计手术辅助机器人系统的运动状态,并结合最优跟踪理论实现了基于心脏运动模型的随动跟踪控制。实验结果表明,与以往的相动运动消除算法相比,运用模型跟随控制算法的机器人系统能将相对运动消除能力提高30%,跟踪误差减小0.25mm。因此,基于心脏运动自适应模型跟随算法能够进一步消除CAGB心脏手术中的相对运动,大大减小了动态跟踪误差。

关键词：手术辅助机器人跟踪控制自适应心脏运动模型模型跟随控制卡尔曼滤波器

F-structure model of overlying strata for dynamic disaster prevention in coal mine

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International Journal of Mining Science and Technology 2013年第4期23卷 508-514页

作者： Mu Zonglong Dou Linming He Hu fan Jun School of Mines China University of Mining & Technology State Key Laboratory of Coal Resources and Mine Safety China University of Mining & Technology School of Resource and Earth Science China University of Mining & Technology

The rupture and movement scope of overlying strata upon the longwall mining face increased sharply as the exploitation scale and degree growing recently,and the spatial structure formed by fractured strata became much more *** overlying strata above the working face and adjacent gobs would affect each other and move cooperatively because small pillar can hardly separate the connection of overlying strata between two workfaces,which leads to mining seismicity in the gob and induces rockburst disaster that named spatial structure instability rockburst in this *** on the key stratum theory,the F-structure model was established to describe the overlying strata characteristic and rockburst mechanism of workface with one side of gob and the other side un-mined solid coal *** results show that F-structure in the gob will re-active and loss stability under the influence of neighboring mining,and fracture and shear slipping in the process of instability is the mechanism of the seismicity in the *** F-structure was divided into two categories that short-arm F and long-arm F structure based on the state of strata above the *** studied the underground pressure rules of different F-structure and instability mechanism,thus provide the guide for prevention and control of the F-structure spatial instability *** micro-seismic system is used for on-site monitoring and researching the distribution rules of seismic events,the results confrmed the existence and correct of F-spatial *** last specialized methods for prevention seismicity and rockburst induced by F-structure instability are proposed and applied in Huating Coal Mine.

关键词： Overlying strata Spatial structure Dynamic disaster Key strata Seismicity

Single event upset sensitivity of 45 nm FDSOI and SOI FinFET SRAM

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Science China Technological Sciences 2013年第3期56卷 780-785页

作者： TANG Du LI YongHong ZHANG GuoHe HE ChaoHui fan YunYun School of Energy and Power Engineering Xi'an Jiaotong University School of Electronic and Information Engineering Xi'an Jiaotong University

In this work single event upset(SEU) sensitivity of 45 nm fully depleted silicon-on-insulator(FDSOI) static random access memory(SRAM) cell and that of SOI fin-shaped field-effect-transistor(FinFET) SRAM cell have been investigated by 3D TCAD *** critical charges and SEU threshold linear energy transfer(LET) value of the two SRAM cells are consistent due to similar gate *** low electrical field and the high recombination rate account for the non-sensitivity to SEU in heavily doped drain *** with FDSOI SRAM,SOI FinFET SRAM cell exhibits lower SEU sensitivity at the center of the *** smaller sensitive area in SOI FinFET SRAM cell may result in a smaller SEU saturation cross section than that of SOI FinFET SRAM.

关键词： single event upset sensitivity FDSOI SRAM SOI FinFET SRAM

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Ecosystem Health and Sustainability 2021年第1期7卷 200-214页

作者： Jiangtao fan Zuozhi Chen Xue feng Wei Yu aSouth China Sea Fisheries Research Institute Chinese Academy of Fishery SciencesGuangzhouChina College of Marine Sciences Shanghai Ocean UniversityShanghaiChina Key Laboratory of Open-Sea Fishery Development Ministry of Agriculture and Rural AffairsGuangzhouChina National Engineering Research Center for Oceanic Fisheries Shanghai Ocean UniversityShanghaiChina Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources Ministry of EducationShanghai Ocean UniversityShanghaiChina

A habitat suitability index model(HSI)was established to examine seasonal habitat pattern of Sthenoteuthis oualaniensis in the South China Sea and assessed the impacts of the El Niño event on habitat variations based on sea surface temperature(SST),chlorophyll-a(Chla)and sea surface height(SSH).Environmental conditions and habitat patterns showed significant seasonal and spatial *** pattern of favorable environmental conditions played important roles in regulating the ranges and longitudinal and latitudinal distributions of suitable habitats(areas with HSI≥0.6)of *** across *** positive correlation was found between SST and HSI,whereas negative relationship was revealed between HSI and Chla as well as SSH by correlation *** to normal climate condition in spring 2014,the El Niño events in spring 2015 and 2016 yielded lower SST and higher Chla and SSH,which were unfavorable for the formation of high-quality *** ranges of environmental conditions showed decreasing trend from spring 2014 to ***,the suitable habitats in spring 2015 and 2016 largely contracted and became *** findings indicated that seasonal habitat patterns of *** in the South China Sea were strongly affected by the El Niño events and local environmental conditions.

关键词： Sthenoteuthis oualaniensis habitat pattern spatio-temporal distribution seasonal variation South China Sea

Neonatal isovaleric acidemia in China: A case report and review of literature

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World Journal of Clinical Cases 2021年第2期9卷 436-444页

作者： fang Wu Shu-Juan fan Xi-Hui Zhou Department of Neonatalogy The First Affiliated Hospital of Xi’an Jiaotong UniversityXi’an 710061Shaanxi ProvinceChina

BACKGROUND Isovaleric acidemia(IVA)is a rare autosomal recessive inherited organic acidemia caused by a genetic deficiency of isovaleryl-CoA dehydrogenase(IVD).Its morbidity is low,but mortality is *** is no effective cure for this *** identification of IVA using clinical features can significantly slow disease progression and reduce *** we report a Chinese neonate with two mutations of IVD and share valuable information on this *** SUMMARY A 12-day-old male neonate with“poor response for 1 d and repeated convulsions accompanied by high muscle tension for 6 h”was *** patient was the first child of nonconsanguineous ethnic Chinese *** was delivered by cesarean section due to breech position at 39+1 wk of gestation with a birth weight of 3.27 ***,he suffered from dyspnea and rhinobyon,and at 10 d after birth the patient suddenly developed poor feeding,low response,lethargy and *** acid analysis of blood and urine by tandem mass spectrometry and gas chromatography mass spectrometry showed extremely high concentrations of isovaleryl *** patient had an acute episode of IVA causing severe metabolic stress and eventually *** A new case of an IVA patient carrying c.1193G>A(***398Gln)and c.1208A>G(***403Cys)mutations is reported in China.

关键词： Isovaleric acidemia Isovaleryl-CoA dehydrogenase Sweaty feet odor Case report Mental retardation Literature review

Large-scale deformation monitoring in mining area by D-InSAR and 3D laser scanning technology integration

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International Journal of Mining Science and Technology 2013年第4期23卷 545-551页

作者： Chen Bingqian Deng Kazhong fan Hongdong Hao Ming Jiangsu Key Laboratory of Resources and Environmental Information Engineering China University of Mining & Technology School of Environment and Spatial Informatics China University of Mining & Technology

Large-scale deformation can not be detected by traditional D-InSAR technique because of the limit of its detectable deformation gradient,we propose a method that combines SAR data with point cloud data obtained by 3D laser scanning to improve the gradient of deformation *** proposed method takes advantage of high-density of 3D laser scanning point cloud data and its high precision of point positioning after 3D *** specifc process can be described as follows:frst,large-scale deformation points in the interferogram are masked out based on interferometric coherence;second,the interferogram with holes is unwrapped to obtain a deformation map with holes,and last,the holes in the deformation map are flled with point cloud data using inverse distance weighting algorithm,which will achieve seamless connection of monitoring *** took the embankment dam above working face of a certain mining area in Shandong province as an example to study large-scale deformation in mining area using the proposed *** results show that the maximum absolute error is 64 mm,relative error of maximum subsidence value is 4.95%,and they are consistent with leveling data of ground observation stations,which confrms the feasibility of this *** method we presented provides new ways and means for achieving large-scale deformation monitoring by D-InSAR in mining area.

关键词： D-InSAR 3D laser scanning Inverse distance weighting Subsidence monitoring TerraSAR-X

Traffic Distribution of Circular Sailing Routing in Dense Multihop Wireless Networks

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Tsinghua Science and Technology 2013年第3期18卷 220-229页

作者： fan Li Xiao He Siyuan Chen Libo Jiang Yu Wang the School of Computer Science Beijing Institute of Technology the Department of Computer Science University of North Carolina at Charlotte

Shortest path routing protocol intends to minimize the total delay between every pair of destination node and source node. However, it is also well-known that shortest path routing suffers from uneven distribution of traffic load, especially in dense wireless networks. Recently, several new routing protocols are proposed in order to balance traffic load among nodes in a network. One of them is Circular Sailing Routing （CSR） which maps nodes on the surface of a sphere and select routes based on surface distances. CSR has been demonstrated with better load balance than shortest path routing via simulations. However, it is still open that what load distribution CSR can achieve. Therefore, in this paper, we theoretically analyze the traffic load distribution of CSR in a dense circular wireless network. Using the techniques developed by Hytti and Virtamo, we are able to derive the traffic load of any point inside the network. We then conduct extensive simulations to verify our theoretical results with grid and random networks.

关键词： load balancing load distribution circular sailing routing routingKey words: load balancing load distribution circular sailing routing routing

One-dimensional and two-dimensional nanomaterials for the detection of multiple biomolecules

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Chinese Chemical Letters 2019年第9期30卷 1557-1564页

作者： Quan Wang Xudong Wang Min Xu Xiaoding Lou fan Xia Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074 China Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China Zhejiang Institute China University of Geosciences Wuhan Hangzhou 311305 China

The complexity of biological samples determines that the detection of a single biomolecule is unable to satisfy actual needs. Moreover, the "false positives" results caused by a single biomolecule detections easily leads to erroneous clinical diagnosis and treatment. Thus, it is important for the homogenous quantification of multiple biomolecules in not only basic research but also practical application. As a consequent, a large number of literatures have been exploited to monitor multiple biomolecules in homogenous solution, enabling facilitating the development of the disease diagnosis, treatment as well as drug discovery. One-dimensional nanomaterials and two-dimensional nanomaterials have special physical and chemical properties, such as good electrochemical properties, stable structure, large specific surface area, and biocompatibility, which are widely used in electrochemical and fluorescent detection of biomolecules. This tutorial review highlights the recent development for the detection of multiple biomolecules by using nanomaterials including one-dimensional materials(1DMs) as well as twodimensional materials(2DMs).

关键词： One-dimensional nanomaterials Two-dimensional nanomaterials Detection Multiple targets Biomolecules