A5038349351- Solar and Space Plasma Dynamics
- Geophysics and Gravity Measurements
- Climate variability and models
- Precipitation Measurement and Analysis
- Remote Sensing and Land Use
- Solar Radiation and Photovoltaics
- Meteorological Phenomena and Simulations
- Interconnection Networks and Systems
- Landslides and related hazards
- Ionosphere and magnetosphere dynamics
- Soil Moisture and Remote Sensing
- Nonlinear Partial Differential Equations
- Stochastic processes and financial applications
- Diamond and Carbon-based Materials Research
- E-commerce and Technology Innovations
- Seismology and Earthquake Studies
- Nonlinear Differential Equations Analysis
- Quantum optics and atomic interactions
- Stellar, planetary, and galactic studies
- Statistical and numerical algorithms
- Spectral Theory in Mathematical Physics
- earthquake and tectonic studies
- Vehicle Noise and Vibration Control
- Differential Equations and Boundary Problems
- Cryospheric studies and observations
China Meteorological Administration
2012-2024
Renmin University of China
2024
Beijing Normal University
2009-2023
Chinese Academy of Sciences
2000-2023
Shenzhen Institutes of Advanced Technology
2023
University of Chinese Academy of Sciences
2020-2023
Cooperative Institute for Mesoscale Meteorological Studies
2021-2022
University of Oklahoma
2021-2022
Beijing National Laboratory for Molecular Sciences
2022
Henan University
2021
<title>Abstract</title> <bold>Objective:</bold> Cholesteatoma and otitis media are two of the most common middle ear diseases, which treatment principles different, making differentiation between them significant importance. Both chronic suppurative (CSOM) cholesteatoma (MEC) can appear on CT images as low-density soft tissue-like masses partially filling mastoid cavities. However, typical imaging MEC may show progressive destruction auditory structures adjacent cranial bones. Compared to...
Abstract Atmospheric absorption attenuates electromagnetic waves as they propagate through space. In the V-band, there is a notable peak in atmospheric that impacts antenna calibration and measurement accuracy. this article, we investigated attenuation under different environmental conditions. Based on investigation, effect gain measurements was analysed an correction method proposed to correct gain. By applying method, value increased by approximately 0.05 dB around 60 GHz for standard horn...
The MicroWave Radiation Imager (MWRI) onboard the FengYun (FY)-3B satellite has five frequencies at 10.65, 18.7, 23.8, 36.5, and 89.0 GHz, each having dual channels vertical horizontal polarization states, respectively. It is found that radio-frequency interference (RFI) present in MWRI data over land. RFI signals are, general, detectable from a spectral difference method principal component analysis (PCA) method. In particular, PCA applied to derive natural radiations by using...
A detection of radio-frequency interference (RFI) in the space-borne microwave radiometer data is difficult under snow and sea ice-covered conditions. The existing methods such as a spectral difference technique or principal component analysis (PCA) RFI indices produce many false signals near boundary Greenland Antarctic ice sheets. In this paper, double PCA (DPCA) method developed for over regions. It shown that new DPCA effective detecting C- X-band channels WindSat while removing...
Using continuous wavelet transform, we examine the relationship between solar activity and annual precipitation in Beijing area. The results indicate that is closely related to variation of sunspot numbers, probably plays an important role influencing on land.
The spin manipulation of nitrogen-vacancy (NV) centers in diamond with high efficiency is associated the optimized performance a microwave antenna. We theoretically and experimentally compared two kinds custom-built antennas, namely, copper wire ring microstrip terms frequency impedance matching, near-field radiation distribution, excitation through energy Smith chart, electron resonance. observed that antenna showed decreased deviation errors by more than one half, as determined from chart...
Monitoring the site-specific local structure and dynamics of polynucleotides DNA is important for understanding their biological functions. However, structurally characterizing these biomolecules with high time resolution has been known to be experimentally challenging. In this work, several 5-silylethynyl-2'-deoxynucleosides 5-substituted phenylethynyl-2'-deoxynucleosides on basis deoxycytidine (dC) deoxythymidine (dT) were synthesized, in which alkynyl group shows intensified CC...
We reconstruct the developing history of solar 10.7 cm radio flux (F10.7) since 1848, based on yearly sunspot number and variations. A relationship between maximum linear regression slope first 3 years starting from minimum cycle is considered. put forward a method predicting F10.7 by means slope-maximum relationship. Running tests for cycles 19 to 23 indicate that can properly predict peak F10.7.
Abstract Building on the results from observing system simulation experiments in Part I, this study investigates impact of assimilating Geostationary Operational Environmental Satellite‐16 (GOES‐16) derived atmospheric motion vector (AMV) data convective scale numerical weather prediction (NWP) by using National Severe Storms Laboratory (NSSL) three‐dimensional variational (3DVAR) assimilation (DA) system. The benefit AMV DA for short‐term severe forecast is assessed with three high‐impact...
We demonstrate a coplanar waveguide resonator for efficiently coupling microwave magnetic field into nitrogen-vacancy centers in diamond. The has resonant frequency of around 2.87 GHz with bandwidth 820 MHz, ensuring the eight dips characteristic optically detected resonance (ODMR) are clearly observed and normalized ODMR improves over that previous system under external fields up to 60 G. stronger distribution uniformity 82% determines result signal being 1.75 times higher 12.5% lower than...
Abstract This research investigates to what extent the high‐spatiotemporal‐resolution Atmospheric Motion Vector (AMV) product derived from new‐generation Geostationary Operational Environmental Satellites‐Series R can benefit convective‐scale data assimilation (DA) and forecasts of potential high impact weather events. In first part this two‐part study, AMV DA on numerical prediction (NWP) is evaluated with an idealized supercell storm. The simulated observations are synthesized storm...
Abstract Proton cyclotron waves (PCWs) upstream from Mars are usually interpreted as generated by ion/ion instabilities due to the interaction between solar wind plasma and pickup protons, originating extended hydrogen (H) exosphere of Mars. Their generation mainly depends on properties relative density newborn protons with respect background wind. Under stable conditions, a higher irradiance leads both increased exospheric H ionization rate atoms, therefore density, which tends increase...
In this paper, we explored the optimal rate and amplitude parameters of microwave-modulated signal applied on ensembles NV centers where linear slope derivation optically detected magnetic resonance reached maximum both theoretically experimentally. Further, compared frequency response induced by rectangular modulation, which was 1.38 approximately 10 times higher than that sine-wave modulation. Besides, noise levels when two-signal modulation used were compared, showed field sensitivity...