A5002066120- Radioactive contamination and transfer
- Radioactive element chemistry and processing
- Radioactivity and Radon Measurements
- Advanced Chemical Physics Studies
- Atmospheric chemistry and aerosols
- Catalytic Processes in Materials Science
- Atmospheric Ozone and Climate
- Catalysis and Oxidation Reactions
- Chemical Reactions and Mechanisms
- Organic Electronics and Photovoltaics
- Perovskite Materials and Applications
- Conducting polymers and applications
- Chemical Reaction Mechanisms
- Advanced Machining and Optimization Techniques
- Landslides and related hazards
- Advanced Wireless Communication Techniques
- Water Treatment and Disinfection
- Traffic Prediction and Management Techniques
- CO2 Reduction Techniques and Catalysts
- Free Radicals and Antioxidants
- Injection Molding Process and Properties
- Geochemistry and Elemental Analysis
- Carbon Dioxide Capture Technologies
- Structural Health Monitoring Techniques
- Soil and Unsaturated Flow
Henan Province Water Conservancy Survey and Design Research
2024
Chinese Academy of Sciences
2018-2024
Jiangsu Normal University
2005-2024
Institute of Earth Environment
2018-2024
State Key Laboratory of Loess and Quaternary Geology
2018-2024
Northwest Institute of Nuclear Technology
2021-2024
Henan University of Technology
2024
Qiqihar University
2023
Dongfeng Motor Group (China)
2022
China Earthquake Administration
2021
Abstract Ternary strategies show over 16% efficiencies with increased current/voltage owing to complementary absorption/aligned energy level contributions. However, poor understanding of how the guest components tune active layer structures still makes rational selection material systems challenging. In this study, two phthalimide based ultrawide bandgap polymer donor guests are synthesized. Parallel energies between highest occupied molecular orbitals host and polymers achieved via...
A ternary material system featuring two donor polymers with identical absorption spectra and differently-oriented side-chains was used in an organic photovoltaic (OPV) cell. It is the first blended OPV cell >16% efficiency.
In this study, the reaction mechanism and kinetics of hydrogen abstraction addition reactions NCO with HCHO in absence presence water have been investigated theoretically for first time. Our theoretical results indicate that direct is favored formation HNCO instead HOCN pathways are negligible without water. The rate constants calculated at CCSD(T)/aug-cc-pVTZ//BH&HLYP/6-311++G(3df,3pd) level zero-point energy correction range from 1.60 × 10(-12) to 4.99 cm(3) molecule(-1) s(-1) between 220...
The spatial distribution of plutonium isotopes (239Pu, 240Pu) in the surface sediments collected from northwestern South China Sea (SCS) 2018 was investigated. 239,240Pu concentrations vary 0.048 to 0.960 mBq/g (with mean 0.282 ± 0.242 mBq/g) depending on geographical feature sampling location such as river estuary, continental shelf, slope and deep basin. Higher 240Pu/239Pu atomic ratios (0.24-0.31) sediment SCS compared global fallout value 0.18 were observed, this is attributed input...
Concentrations of 239Pu and 240Pu in 163 surface soil samples five cores collected from the northeast north China were analyzed using radiochemical separation combined with inductively coupled plasma mass spectrometry measurement. The average 240Pu/239Pu atomic ratios (0.185 ± 0.018) for all indicated that global fallout is major source plutonium studied region. 239,240Pu concentrations ranged 0.002 mBq/g to 4.82 mBq/g, lying range reported results areas similar latitude, except a few...
In this study, we explore the potential of Co3O4/g-C3N4 composite catalysts for improving oxygen evolution reaction (OER) performance. By employing a rotating disk electrode in 0.1 mol L-1 KOH electrolyte, systematically investigate OER properties various ratios catalysts. Our findings reveal that Co3O4/g-C3N4-0.2 catalyst outperforms pure g-C3N4, exhibiting significantly higher current density (10 mA cm-2) and lower overpotential (627 mV). Furthermore, Tafel slope analysis demonstrates...
ICP-MS/MS measurement with mass-shift mode using O 2 /He–He collision gas can effectively suppress the interference of polyatomic ions from interfering elements (Pb, Hg, Tl, etc. ) in analysis ultra-trace level 241 Am environmental samples.
The source, vertical distribution and migration behavior of plutonium in five soil profiles (from forest, grassland desert areas) northern China were investigated. average 240Pu/239Pu atomic ratio 0.184 ± 0.022 observed these samples is good agreement with the reported value global fallout, suggesting that fallout major source China. 239,240Pu inventories ranges from 43.3 Bq/m2 to 175 Bq/m2, lying range for similar latitude band. effective convection velocity (0.04-0.16 cm/y) dispersion...
Kinetics and mechanism of the gas-phase reaction CH3C(O)OCH(CH3)CH2OCH3 (MPA) with OH radicals in presence O2 NO have been investigated theoretically by performing a high reliable level theory, viz., CCSD(T)/6-311 + G(d,p)//BH&HLYP/6-311++G(d,p) 0.9335×ZPE. The calculations predict that H-abstraction from −CH2−O− position MPA is most facile channel, which leads to formation corresponding alkoxy CH3C(O)OCH(CH3)C(O •)HOCH3 under atmospheric conditions. This activated will undergo further...
Abstract The existence of Pb which formed polyatomic ions such as PbCl + , PbAr would interfere the determination ultra-trace Am by ICP-MS. An extraction chromatography method for removal interference was provided in this work to improve accuracy In study, Sr resin applied separate and because great difference between on adsorption ability. variable parameters including nitric acid concentration, loading volume, column height amount were investigated optimize separation conditions high...
Abstract Taking the shear strength as characteristic index to measure of soil, a parameter is established that can describe contact distance between surface soil particles—the mean value particle density. Using indoor direct test preset scheme, first-hand data three different factors such moisture content, dry density and grain size quantitatively affect are obtained. Through establishment quantitative relationship strength, theoretical description influence law several key elements void...
Nickel-based superalloy Inconel 718 has been widely used in the modern aviation field, however, its cutting performance is poor. This not only affects effectiveness of use tool but also reduces efficiency production. In this article, cemented carbide tools nickel-based was taken as an example to analyze wear mechanism. The prediction model with parameters and time established according Archard agglomeration scavenging theory. Using orthogonal test, multiple regression analysis method obtain...