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A Survey of Statistical Relationships between Tropical Cyclone Genesis and Convectively Coupled Equatorial Rossby Waves

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Advances in Atmospheric Sciences 2022年第5期39卷 747-762页

作者： Shuguang WANG Juan FANG xiaodong tang Zhe-Min TAN Key Laboratory of Mesoscale Severe Weather(MOE) School of Atmospheric SciencesNanjing UniversityNanjing 210093China

Convectively coupled equatorial Rossby waves(ERW)modulate tropical cyclone activities over tropical *** study presents a survey of the statistical relationship between intraseasonal ERWs and tropical cyclone genesis(TCG)over major global TC basins using four-decade-long outgoing longwave radiation(OLR)and TC best-track *** ERWs are identified from the OLR anomalies using an empirical orthogonal function(EOF)analysis method without imposing equatorial *** find that westward-propagating ERWs are most significant in four tropical ocean basins over the summer hemisphere and that ERWs exhibit similar northeast-southwest(southeast-northwest)tilted phase lines in the northern(southern)hemisphere,with an appreciable poleward advance of wave energy in most TC *** EOF-based ERW indices quantitatively show that ERWs significantly modulate TC *** convectively active(suppressed)phases of ERWs coincide with increased(reduced)TCG *** TCG modulation by ERWs achieves the maximum where the ERWs propagate through the climatological TCG *** a result,the total number of TCG occurrences in the TC basins varies significantly according to the ERW *** ERW-TCG relationship is significant over the northwestern Pacific Ocean,northeastern Pacific Ocean,and the northern Indian Ocean during the northern summer *** the southern summer season,the ERW-TCG relationship is significant over the southern Indian Ocean,Indonesian-Australia basin,and the southwestern Pacific ***,ERW activities are weak in the main TC development region of the Atlantic Ocean;and the impact on Atlantic TCG appears to be insignificant.

关键词： tropical cyclone genesis equatorial Rossby waves statistical analysis

A surgical simulation system for predicting facial soft tissue deformation

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Computational Visual Media 2016年第2期2卷 163-171页

作者： xiaodong tang Jixiang Guo Peng Li Jiancheng Lv Machine Intelligence Lab Sichuan University West China College of Stomatology Sichuan University

In the field of cranio-maxillofacial(CMF)surgery, surgical simulation is becoming a very powerful tool to plan surgery and simulate surgical results before actually performing a CMF surgical *** prediction of facial soft tissue changes is in particular essential for better preparation and to shorten the time taken for the operation. This paper presents a surgical simulation system to predict facial soft tissue changes caused by the movement of bone segments during CMF surgery. Two experiments were designed to test the feasibility of this simulation system. The test results demonstrate the feasibility of fast and good prediction of post-operative facial appearance, with texture. Our surgical simulation system is applicable to computer-assisted CMF surgery.

关键词： cranio-maxillofacial(CMF) surgery finite element model(FEM) soft tissue model view-controller

Lightweight Body-In-White Design Driven by Optimization Technology

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Automotive Innovation 2018年第3期1卷 255-262页

作者： Heguo Ou xiaodong tang Jieping Xiao Yuanbo Wang Zhongmin Ma Off-Road Vehicle R&D Beijing Automotive Industry CorporationNo.99 Shuanghe StreetShunyi DistrictBeijingChina

Structural optimization technologies are increasingly applied to lightweight automotive structural *** a body-inwhite(BIW)development project,optimization technologies are applied in three steps that are seamlessly integrated into engineering *** following a design-driven approach,an innovative design that was 50.65 kg lighter than the base design was ***,topology optimization was used to investigate the optimal material distribution in a given design space,and helped in extracting the main load path,while considering crashworthiness,NVH,and static stiffness performance *** the second step,the effective design of a beam cross-section and feasible joints was carried out based on optimization technology and expert *** this step,the deep involvement of manufacturing process experts on stamping and joint connection feasibility analysis increased the chance of success *** sensitivity analysis,topography optimization,and gauge optimization of the created draft 3D BIW frame comprised the last step before finalizing the initial *** new design was validated by full load case simulations,including full vehicle crashworthiness analysis,mode frequency,and body mount point dynamic stiffness analysis,and BIW stiffness and component attachment stiffness *** validation results indicate that the new BIW design achieves the performance goal,while being 13.3%lighter than the base design.

关键词： BIW design Lightweight design Structural optimization Optimization technology

Magnetism tuned by intercalation of various metal ions in coordination polymer

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Chinese Chemical Letters 2019年第7期30卷 1390-1392页

作者： Chengfei Wang Wei Zhang Wenwu Li Yuanyuan Zhang xiaodong tang Ming Hu State Key Laboratory of Precision Spectroscopy Key Laboratory of Polar Materials and Devices (MOE) School of Physics and Materials Science East China Normal University

Incorporation of guest ions into porous frameworks changed magnetism of the host materials significantly. However, in most cases, the guest ions were monovalent due to lack of reliable method to insert divalent and trivalent guest ions. In this work, we demonstrated that divalent and trivalent metal ions could be inserted into frameworks of a coordinate polymer, Cu3[Fe(CN)6]2, through electrochemical intercalation. The magnetism of the host frameworks was changed among paramagnetic, superparamagnetic, and ferromagnetic as demonstrated by physical property measurement system (PPMS). Furthermore, the magnetization of the frameworks under low temperatures correlated to the guest ions significantly. The ionic radius and net charge of the guest ions influenced the intercalation amount of the guest ions, therefore affected the valence change of Fe3+ ions in the host frameworks, finally leading to variation of the magnetism of the host materials.

关键词： Electrochemistry Magnetism Guest ions Prussian Blue analogues

Study and Commercial Test on Technology for Deacidification of Distillate Oils

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China Petroleum Processing & Petrochemical Technology 2005年第3期7卷 19-25页

作者： tang xiaodong An Rong Cui Yingxian Du Hongyong State Key Laboratory. of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum Institute Chengdu 610500 SINOPEC Shengli Technology Inspection Center College of Chemistry and Chemical Engineering Southwest Petroleum Institute

A new kind of solvent for deacidification of distillate oils was introduced in this paper. After successful laboratory study this technology had been applied in commercial scale successfully. Compared to traditional caustic wash of distillate oils, this technology has a lot of merits, such as the broad range of distillates to be processed, low caustic consumption, recycle of deacidifying agent, absence of waste caustic discharge, and low equipment revamp expenses, which can have promising perspectives for exploitation and application of this technology.

关键词： distillate oil deacidifying agent petroleum acids purification process experimental study commercial application

Progress of the Nuclear Astrophysical Research at IMP

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IMP & HIRFL Annual Report 2019年第1期 49-50页

作者： tang xiaodong 不详

The nuclear astrophysical research program at IMP focuses on the nuclear process happening in stellar *** research has been taken place using the facilities such as HIRFL and LEAF at Lanzhou,3 MV Tandem accelerator la... 详细信息

关键词： IMP happen stellar

Engineered extracellular vesicles efficiently deliver CRISPR-Cas9 ribonucleoprotein(RNP)to inhibit herpes simplex virus1 infection in vitro and in vivo

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Acta Pharmaceutica Sinica B 2024年第3期14卷 1362-1379页

作者： Yuanda Wan Liren Li Ruilin Chen Jiajia Han Qiyun Lei Zhipeng Chen xiaodong tang Wenyu Wu Shuwen Liu Xingang Yao NMPA Key Laboratory for Research and Evaluation of Drug Metabolism Guangdong Provincial Key Laboratory of New Drug ScreeningSchool of Pharmaceutical SciencesSouthern Medical UniversityGuangzhou 510515China Center of Clinical Pharmacy Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China State Key Laboratory of Ophthalmology Zhongshan Ophthalmic CenterSun Yat-sen UniversityGuangzhou 510060China Key Laboratory of Infectious Diseases Research in South China(Southern Medical University) Ministry of EducationGuangzhou 510515China

Extracellular vesicles(EVs)have recently emerged as a promising delivery platform for CRISPR/Cas9 ribonucleoproteins(RNPs),owing to their ability to minimize off-target effects and immune ***,enhancements are required to boost the efficiency and safety of Cas9 RNP enrichment within *** response,we employed the Fc/Spa interaction system,in which the human Fc domain was fused to the intracellular domain of PTGFRN-Δ687 and anchored to the EV ***,the B domain of the Spa protein was fused to the C domain of cargos such as Cre or *** to the robust interaction between Fc and Spa,this method enriched nearly twice the amount of cargo within the *** loaded with spCas9 RNP targeting the HSV1 genome exhibited significant inhibition of viral replication in vitro and in ***,following neuron-targeting peptide RVG modification,the in vivo dosage in neural tissues substantially increased,contributing to the clearance of the HSV1 virus in neural tissues and exhibiting a lower off-target *** findings establish a robust platform for efficient EV-based SpCas9 delivery,offering potential therapeutic advantages for HSV1 infections and other neurological disorders.

关键词： Extracellular vesicles CRISPR/Cas9 Ribonucleoproteins PTGFRN Fc/Spa HSV1 Neuron-targeting Delivery

A method for determination of deuterium impurity in the helium beam

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Science China(Physics,Mechanics & Astronomy) 2018年第5期61卷 53-56页

作者： Han Chen ShiWei Xu NingTao Zhang Jun Hu KuoAng Li ShaoBo Ma XiChao Ruan xiaodong tang LiYong Zhang Institute of Modern Physics Chinese Academy of Sciences Department of Nuclear Physics China Institute of Atomic Energy Joint Department for Nuclear Physics Lanzhou University and Institute of Modern Physics Chinese Academy of Sciences National Astronomical Observatories of China Chinese Academy of Sciences

Both the LUNA（Laboratory for Underground Nuclear Astrophysics）collaboration in Europe and the JUNA（Jinping Underground Laboratory for Nuclear Astrophysics）collaboration in China are planning to study the key react... 详细信息

关键词：氢杂质天体物理学横梁氦实验室结束期原子合作

A SEMI-ACTUATOR DISK THEORY FOR PREDICTION OF STALL FLUTTER IN AXIAL FLOW COMPRESSORS

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Chinese Journal of Aeronautics 1989年第4期 241-246页

作者： Yang xiaodong, tang Zhiming and Zhou Sheng Beijing University of Aeronautics and Astronautics

One of the practical methods for predicting blade stall flutter in turbomachinery isa semi-empirical one (deformed actuator disk method). The reliability and simplicityof this method have been verified by the authors. Because the unsteady flow withinthe cascade channel is neglected in the actuator disk method, there are some errorsin computation by it. In order to improve this method, the authors developed a semi-actuatordisk method which can be used for stall flutter prediction. The simplifiedunsteady flow solution within the channel improves the solution by the actuator diskmethod. An example of computation has indicated that the predicting accuracy ofthe semi-actuator disk method is better than that of the actuator disk method.

关键词： A SEMI-ACTUATOR DISK THEORY FOR PREDICTION OF STALL FLUTTER IN AXIAL FLOW COMPRESSORS SEMI