A5033158342- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Hydrology and Drought Analysis
- Hydrological Forecasting Using AI
- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Ferroelectric and Piezoelectric Materials
- Magnetic and transport properties of perovskites and related materials
- Groundwater and Isotope Geochemistry
- Microwave Dielectric Ceramics Synthesis
- Multiferroics and related materials
- High-pressure geophysics and materials
- Groundwater flow and contamination studies
- Concrete and Cement Materials Research
- Hydrology and Sediment Transport Processes
- Solid-state spectroscopy and crystallography
- Obstructive Sleep Apnea Research
- Recycling and utilization of industrial and municipal waste in materials production
- Magnetic properties of thin films
- Dielectric properties of ceramics
- Advanced Decision-Making Techniques
- Research Data Management Practices
- Topological Materials and Phenomena
- Obesity, Physical Activity, Diet
- Precipitation Measurement and Analysis
Hohai University
2013-2024
Beijing Institute of Technology
2023
Yellow River Institute of Hydraulic Research
2020
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering
2013
Brookhaven National Laboratory
2002-2006
Zen-Noh (Japan)
2006
Pennsylvania State University
2000-2003
Guangdong University Of Finances and Economics
2003
United States Naval Research Laboratory
2002
Academia Sinica
1993
We have epitaxially grown Ba0.6Sr0.4TiO3 (BST-0.4) thin films on MgO(001) substrates. By inserting a very Ba1−xSrxTiO3 (x=0.1–0.7) interlayer between the MgO substrate and main layer of BST-0.4, we are able to manipulate degree stress in BST-0.4 films. controlled states, i.e., lattice distortion ratio (D=in-plane constant/out-of-plane constant) by varying chemical composition interlayers. found that small variations D value can result significantly large changes dielectric properties. A film...
Pulsed-laser deposition has been used to grow epitaxial thin films of the giant-dielectric-constant material CaCu_3Ti_4O_{12} on LaAlO_3 and SrTiO_3 substrates with or without various conducting buffer layers. The latter include YBa_2Cu_3O_7, La_{1.85}Sr_{0.15}CuO_{4+\delta} LaNiO_3. Above 100K - 150K have a temperature independent dielectric constant as do single crystals. value is order 1500 over wide region, potentially making it good candidate for many applications. frequency dependence...
Abstract The accuracy of flood forecasts generated using spatially lumped hydrological models can be severely affected by errors in the estimates areal mean rainfall. quality latter depends both on size and type point‐based rainfall measurements, density spatial arrangement rain gauges basin. Here we use error feedback correction, based dynamic system response curve (DSRC) method, to compute updated inputs. method is evaluated via synthetic real‐data cases, showing that works as...
Abstract Daily streamflow modeling is an important tool for water resources management and flood mitigation. This study compared the performance of Xinanjiang (XAJ) model random forests (RF) method in a daily simulation, proposed several hybrid models based on XAJ model, wavelet analysis, RF (including XAJ-RF WRF XAJ-WRF model). The methods were applied to Shiquan station, located Upper Han River basin China. Five measures (NSE, RMSE, PBIAS, MAE, R) adopted evaluate accuracy. Results showed...
Objective We aimed to examine the relationship between weight-adjusted waist index (WWI) and obstructive sleep apnea (OSA), a condition often caused by obesity, which remains unclear. Methods In this cross-sectional study, we analyzed data from National Health Nutrition Examination Survey among adults in United States (US) aged 20 65 years, covering periods 2005 2008 2015 2018. The study included 8278 participants; used multivariate logistic regression, restricted cubic splines, subgroup...
In order to improve the accuracy of real-time flood forecasting, a new accurate and efficient forecasting error correction method based on dynamic system response curve (DSRC) is developed. The was introduced into establish feedback updating model tracing source error. this study, flow concentration Xinanjiang (XAJ) generalized system. physical basis hydrological model. theoretical concept differential function runoff time series. Based observed calculated discharge, series corrected using...
Abstract Error correction method is widely used to improve the performance of flood forecasting. The Dynamic System Response Curve (DSRC) has been proposed as an error hydrological modeling. One critical problems unstable caused by ill‐posed property model structure and inability estimating multiple variables. To address this problem, original DSRC was modified enable capability Using variable forgetting factor recursive least squares algorithm (VFF‐RLS), we improved version (VFF‐RLS‐MDSRC)....
The element-specific valence- and conduction-band densities of states for the high-dielectric-material $\mathrm{Ca}{\mathrm{Cu}}_{3}{\mathrm{Ti}}_{4}{\mathrm{O}}_{12}$ have been measured using soft x-ray emission absorption spectroscopies. Ti ${L}_{\ensuremath{\alpha},\ensuremath{\beta}}$, Cu O $K$ spectra were with monochromatic photon excitation on selected energies above ${L}_{2,3}$ edges, respectively. X-ray recorded at same edges. electronic structure was also calculated density...
Abstract The dynamic system response curve (DSRC) method has been shown to effectively use error feedback correction obtain updated areal estimates of mean rainfall and thereby improve the accuracy real‐time flood forecasts. In this study, we address two main shortcomings existing method. First, ridge estimation is used deal with ill‐conditioning normal equation coefficient matrix when applied small basins, or length updating series short. Second, effects spatial heterogeneity on are...
The dynamic system response curve (DSRC) is commonly applied as a real-time flood forecasting error correction method to improve the accuracy of forecasting. It has been widely recognized that least squares (OLS/LS) method, employed by DSRC, breaks down ill-posed problems, and therefore, DSRC may lead deterioration in performance caused meaningless solutions. To address this problem, diagnostically theoretical analysis was conducted investigate relationship between numerical solution...
The main purpose of this study is to explore the runoff generation mechanism and isotopic variation precipitation during typhoon plum rain events in mountainous region mainly covered with bamboo southeastern China. value more depleted than that has a larger range d-excess. Typhoon are affected by frequent temperate tropical cyclones, ocean evaporationis expected be very intenseand marine air parcels move quickly. As for events, parcel moves slowly due blocking effect cold front moisture...