A5024592333- Precipitation Measurement and Analysis
- Meteorological Phenomena and Simulations
- Hydrology and Drought Analysis
- Hydrology and Watershed Management Studies
- Quantum Dots Synthesis And Properties
- Chalcogenide Semiconductor Thin Films
- Conducting polymers and applications
- Perovskite Materials and Applications
- Climate variability and models
- Flood Risk Assessment and Management
- Soil Moisture and Remote Sensing
- Semiconductor materials and interfaces
- Organic Electronics and Photovoltaics
- Plant Water Relations and Carbon Dynamics
- Hydrological Forecasting Using AI
- Solar Radiation and Photovoltaics
- Water Resources and Management
- Groundwater flow and contamination studies
- Gold and Silver Nanoparticles Synthesis and Applications
- Advanced Sensor and Energy Harvesting Materials
- Nanowire Synthesis and Applications
- Arctic and Russian Policy Studies
- Lightning and Electromagnetic Phenomena
- Soil erosion and sediment transport
- Radio Wave Propagation Studies
United States Army Corps of Engineers
2011-2024
Ben-Gurion University of the Negev
2020-2024
Chungnam National University
2023
Saint Louis University
2023
University of Iowa
2023
Geospatial Research (United Kingdom)
2023
Indian Institute of Technology Delhi
2015-2018
Jadavpur University
2014
National Institute of Technology Durgapur
2012-2013
South Florida Water Management District
2001-2012
ABSTRACT Variants of spatial interpolation and data‐driven methods to fill gaps in daily precipitation records are developed evaluated this study. The include variations inverse distance correlation weighting procedures, linear weight optimization artificial neural networks. An already existing method, support vector logistic regression‐based copula, is also assessed. Optimal weights estimated using correlation‐based methods, post‐corrections spatially interpolated estimates for rain or no...
Abstract A changing climate leads to changes in the frequency, intensity, spatial extent, duration and timing of weather extremes, can result unprecedented extremes. These extremes have significant impacts on human ecological systems, which are influenced by climate, vulnerability exposure, resulting increased fatalities economic losses especially developing countries. To reduce disaster risks, global local society or community need assess events with interaction these hazards, exposure...
We report on the fabrication and optimization of Cs0.05FA0.79MA0.16Pb(Br0.17I0.83)3 perovskite solar cells from inks containing polymer PTB7 as an additive, comparing spin-coating inkjet printing deposition methods. Spin-coated devices exhibited a maximum power conversion efficiency 17.75% but showed little difference between samples with without ink additive. For inkjet-printed devices, combined parameters amount additive in precursor enabled layer increased quality. In comparison, added...
An octylammonium azide was introduced to the interface between perovskite and P3HT. The ammonium group could passivate defects. moiety crosslink with P3HT under UV light, strengthening interfacial contact.
The technological requirements are changing, and there is a push for more effective energy production conversion technologies as result of social desire sustainable renewable sources. Solar conversion, particularly photovoltaic cells, offers potentially helpful solution in this situation. Power efficiency (PCE) perovskite solar cells (PSCs) has been reported to have increased significantly from 3% 26.1%. transition laboratory PSCs their commercialization needs scalable deposition techniques,...
Several reservoirs across the United States are filling with sediment, which jeopardizes their functionality and increases maintenance costs. USACE developed Reservoir Sedimentation Information (RSI) system to assess reservoir aggradation track dam operation suitability for water resource management safety. The RSI data set contains historical elevation-capacity approximately 400 dams (excluding navigation structures), correspond less than 1% of States. Thus, there is a critical need develop...
Over a decade, researchers have depicted remarkable optoelectronic properties of halide‐based organic–inorganic perovskites and demonstrated impressive power conversion efficiency in photovoltaic applications, starting from 3.9% to 26.1%. The are significantly influenced by the crystal form crystallization process. There two common forms perovskites: polycrystalline films single‐crystal. In thin films, multiple grain boundaries lead ion migration, surface flaws, instability, making them...
The South Florida Water Management District (SFWMD) relies on a network of nearly 300 rain gauges in order to provide rainfall data for use operations, modeling, water supply planning, and environmental projects. However, the prevalence convective tropical disturbances during wet season presents challenge that current gauge may not fully capture events demonstrate high spatial variability. Next Generation Radar (NEXRAD) technology offers advantage providing account rainfall, although quality...
III-Nitride semiconductors face the issue of localized surface states, which causes fermi level pinning and large leakage current at metal semiconductor interface, thereby degrading device performance. In this work, we have demonstrated use a Self-Assembled Monolayer (SAM) organic molecules to improve electrical characteristics Schottky barrier diodes (SBDs) on n-type Gallium Nitride (n-GaN) epitaxial films. The were improved by adsorption SAM hydroxyl-phenyl metallated porphyrin (Zn-TPPOH)...
Lead halide perovskites attract much attention in recent years as a realistic solution for efficient and low‐cost solar cells. One of the interesting cell structures is fully mesoporous‐carbon‐based perovskite The mesoporous layers can be fabricated entirely by screen printing with potential upscaling. Herein, two‐step deposition cells studied. influence dipping time on photovoltaic parameters investigated using charge extraction intensity‐modulated photovoltage spectroscopy (IMVS)...
Distributed rainfall information is necessary for making operational hydrologic predictions and retrospective studies. Rainfall measurements from radar require conversion of reflectivity into rates, but contain systematic errors (bias). Default Z-R relationships that are commonly used not adapted to particular radars vary by season. Improved estimation may be obtained a given season installation deriving relationships. These derived before prospective storms cross over gauges within network,...