A5100368917- Planetary Science and Exploration
- Seismic Imaging and Inversion Techniques
- High-Velocity Impact and Material Behavior
- Astro and Planetary Science
- earthquake and tectonic studies
- Geological and Geophysical Studies
- CCD and CMOS Imaging Sensors
- Particle Detector Development and Performance
- ZnO doping and properties
- Seismology and Earthquake Studies
- Analytical Chemistry and Sensors
- Advanced Synthetic Organic Chemistry
- Luminescence and Fluorescent Materials
- Molecular Sensors and Ion Detection
- Numerical methods for differential equations
- Parkinson's Disease Mechanisms and Treatments
- Cultural Heritage Management and Preservation
- Seismic Waves and Analysis
- High-pressure geophysics and materials
- Geophysical Methods and Applications
- Space Satellite Systems and Control
- Differential Equations and Numerical Methods
- Bioactive Natural Diterpenoids Research
- Differential Equations and Boundary Problems
- Neurological disorders and treatments
Shanghai Tongji Urban Planning and Design Institute
2023
Yanshan University
2023
Zhejiang Cancer Hospital
2022
University of Chinese Academy of Sciences
2018-2022
Chinese Academy of Sciences
2017-2022
Université Paris Cité
2022
Centre National de la Recherche Scientifique
2022
Institute of Geology and Geophysics
2021-2022
Institut de physique du globe de Paris
2022
Institute of Semiconductors
2020
Abstract Echitamine ( 1 ) and akuammiline 2 are representative members of a fascinating class monoterpenoid indole alkaloids. We report the syntheses its congener deacetylakuammiline 3 ). The azabicyclo[3.3.1]nonane motif was assembled through silver‐catalyzed internal alkyne cyclization, one‐pot C−O bond cleavage/C−N formation furnished pentacyclic scaffold. Compound then served as common intermediate for preparing series structurally diverse synthetically challenging congeners including ....
Abstract Experiencing heavy impacting, the Moon preserves a megaregolith in its shallow subsurface with physical properties that carry implications for lunar history. A strong scattering of seismic waves associated heterogeneous appears to be systematic, but deriving statistical law random heterogeneities has remained elusive. Apollo data are characterized by ultra‐long coda weak amplitude decay provide an opportunity explore extent heterogeneity crust. We obtain numerical simulation...
We demonstrated the growth of high-quality and compressive-stressed single-crystal c-GaN on (2¯01) β-Ga2O3 utilizing metal organic vapor phase epitaxy. Rectification behavior n-GaN/n-Ga2O3 isotype heterojunction was observed. Valence conduction band offsets were determined to be 1.625 eV ± 0.07 –0.165 eV, respectively, confirming a type-II due polarization effect. The extracted forward (0.702 V) reverse (0.178 turn-on voltages could ascribed bending (0.695 eV) effect offset, respectively....
Most previous studies tend to simplify the lunar regolith as a homogeneous medium. However, is not completely homogeneous, because there are weak reflections from layer. In this study, we examined heterogeneity of layer using self-organization model by matching reflection pattern both and top ejecta After series numerical experiments, synthetic results show great consistency with observed Chang’E-4 penetrating radar data provide some constraints on range controlling parameters exponential...
Objective. To determine the role of Jinhuang Powder to prevent adverse effects subcutaneous injection enoxaparin sodium. Methods. The clinical data 97 patients with cervical cancer who were treated through lower margin deltoid muscle upper arm in Zhejiang Tumor Hospital from August 2020 2021 retrospectively analyzed. All divided into control group (n = 39) and research 58) according different use time periods Powder. was sodium at same time. started after reactions occurred. induration,...
Recognition behavior of a hexaazatriphenylene ( HAT ) derivative toward different acids in THF solution was investigated through 1 H NMR , UV –vis and fluorescence spectroscopic experiments, as well SEM image semi‐empirical calculations, which revealed that this propeller‐like receptor could co‐assemble into layered complex by sandwiching protons halogen (chloride or bromide) anions synergistically between the molecules. What's more, reversible remarkable color changes visible to naked eye...
摘要: 为研究空间对接机构在对接过程中的碰撞现象,研制了碰撞试验系统.探讨了试验系统方案;依据Hertz弹性接触理论,仿真计算了加速度频率特性,确定了加速度传感器的选择原则;利用该系统开展了低速碰撞试验.试验结果表明,该系统能够满足测量对接碰撞力的要求. 关键词: 空间对接机构 / 气浮导轨 碰撞试验系统 Hertz弹性接触理论 加速度传感器
Abstract. At present, China is building a historic heritage conservation and management system from upper to lower level. Therefore, as the middle level, provincial level becoming increasingly important in of famous towns villages. However, due excessive quantities resources, lagging skills other influential factors, competent authorities still face series difficulties implementing cities, Focusing on regulatory issues faced by authorities, this study combined geospatial information...
The paper solved the ordinary differential equation initial value problem on computer by MATLAB, using methods of Euler's method, improved Euler method and classical Runge-Kutta.It can draw a conclusion that simple error principle is bigger, calculation amount larger Runge-Kutta has high precision stability comparing numerical results analysis,
<p>The Pearl River estuary area, located in the middle part of southern China coastal seismic belt, has long been considered a potential source strong earthquakes above magnitude 7.0. To scientifically assess earthquake risk this three-dimensional artificial sounding experiment, consisting receiving array and seabed seismograph, was performed to reveal deep crustal structure region. We used ship-borne air-gun excitation shots as sources, fixed mobile stations receivers record...
<p>The Apollo Passive Seismic Experiments recorded more than 13000 events on the Moon during 1969-1977 [1]. However, not all of these were used in our previous studies due to degradation quality data (Figure 1A). To make better use seismic data, we propose several new methods reprocess it. First, since records sometimes contain invalid every station and component (including short period component), removed from raw using time ground number. Then special spikes with help...