A5002073580- Stochastic processes and financial applications
- Wastewater Treatment and Nitrogen Removal
- Insurance, Mortality, Demography, Risk Management
- Heavy metals in environment
- Financial Risk and Volatility Modeling
- Pharmaceutical and Antibiotic Environmental Impacts
- Economic theories and models
- Stochastic processes and statistical mechanics
- Heavy Metals in Plants
- Probability and Risk Models
- Financial Markets and Investment Strategies
- Water Treatment and Disinfection
- Mercury impact and mitigation studies
- Microbial Fuel Cells and Bioremediation
- Nanoparticles: synthesis and applications
- Analytical chemistry methods development
- Membrane Separation Technologies
- Advanced Statistical Process Monitoring
- Microplastics and Plastic Pollution
- Constructed Wetlands for Wastewater Treatment
- biodegradable polymer synthesis and properties
- Insurance and Financial Risk Management
- Auction Theory and Applications
- Advanced Photocatalysis Techniques
- Antimicrobial Resistance in Staphylococcus
Zhengzhou University of Light Industry
2016-2025
Weihai Maternal and Child Health Hospital
2025
Columbia University
2013-2024
China Coal Technology and Engineering Group Corp (China)
2024
Central South University
2023
China National Petroleum Corporation (China)
2022-2023
University of London
2018
Universidad de Londres
2018
Hunan University
2017
Queen Mary University of London
2015
As a burgeoning pollutant, microplastics (MPs) has elicited global concern. However, ecological effects and mechanisms of MPs on plant-soil system are still poorly understood. In the present study, impacts polyvinyl chloride (PVC-MPs) maize (Zea mays L.) seedlings growth physiological traits soil properties were discussed through 30-day pot experiment. Results showed that PVC-MPs had greater toxicity effect shoot biomass than root biomass. To defense impact PVC-MPs, superoxide dismutase...
Abstract Microplastics are exotic pollutants and increasingly detected in soil, but it remains poorly understood how microplastics impact soil plant systematically. The present study was conducted to evaluate the effects of polyvinyl chloride (PVC-MPs) on wheat seedlings performance properties. Under stress PVC-MPs, no new substance functional groups were generated by X-ray diffraction fourier transform infrared spectroscopy analyses, whereas characteristic peaks affected PVC-MPs. Wheat...
This work considers the problem of quickest detection with N distributed sensors that receive sequential observations either in discrete or continuous time from environment. These employ cumulative sum (CUSUM) strategies and communicate to a central fusion center by one shot schemes. One schemes are which only once, via they signal detection. The communication is clearly asynchronous case considered employs minimal strategy, means it declares an alarm when first takes place. It assumed...
Using the large deviation principle (LDP) for a re-scaled fractional Brownian motion $B^H_t$ where rate function is defined via reproducing kernel Hilbert space, we compute small-time asymptotics correlated stochastic volatility model of form $dS_t=S_t\sigma(Y_t) (\bar{\rho} dW_t +\rho dB_t), \,dY_t=dB^H_t$ $\sigma$ $\alpha$-H\"{o}lder continuous some $\alpha\in(0,1]$; in particular, show that $t^{H-\frac{1}{2}} \log S_t $ satisfies LDP as $t\to0$ and has well-defined implied smile $t \to...
This paper considers magnitude, asymptotics and duration of drawdowns for some L\'{e}vy processes. First, we revisit existing results on the magnitude spectrally negative processes using an approximation approach. For any process whose scale functions are well-behaved at $0+$, then study drawdown quantities when threshold approaches zero. We also show that such is robust to perturbations additional positive compound Poisson jumps. Finally, thanks asymptotic recent works running maximum...
ABSTRACT Although the staphylococcal methicillin resistance determinant, mecA , resides on a mobile genetic element, staphylococcus cassette chromosome mec (SCC ), its distribution in nature is limited to as few five clusters of related methicillin-resistant Staphylococcus aureus (MRSA) clones. To investigate potential role host clonal restriction we constructed plasmid pYK20, carrying intact and introduced it into several methicillin-susceptible strains, which were naive hosts (i.e., not...
The drawdown of an asset is a risk measure defined in terms the running maximum asset's spot price over some period [0, T]. said to have drawn down by at least $K this if there exists time which underlying below its maximum-to-date. We introduce insurance against large realization and novel way hedge liability incurred underwriting insurance. Our proposed pays fixed amount should exceed threshold specified period. need for would diminish markets rise before they fall. Consequently, we...
The drawdown process of an one-dimensional regular diffusion $X$ is given by reflected at its running maximum. drawup minimum. We calculate the probability that a proceeds in exponential time-horizon. then study law occupation times and process. These results are applied to address problems risk analysis for option pricing Finally, we present examples Brownian motion with drift three-dimensional Bessel processes, where prove identity law.
Limited information on the potential toxicity of ionic liquids (ILs) becomes bottleneck that creates a barrier in their large-scale application. In this work, two quantitative structure-activity relationships (QSAR) models were used to evaluate ILs toward acetylcholinesterase enzyme using multiple linear regression (MLR) and extreme learning machine (ELM) algorithms. The structures 57 cations 21 anions optimized quantum chemistry calculations. electrostatic surface area (SEP) screening...