A5085910950- Traffic and Road Safety
- 2D Materials and Applications
- Traffic Prediction and Management Techniques
- Traffic control and management
- Urban Transport and Accessibility
- Vehicle emissions and performance
- Perovskite Materials and Applications
- Maritime Ports and Logistics
- Chalcogenide Semiconductor Thin Films
- Advanced Software Engineering Methodologies
- Injury Epidemiology and Prevention
- Formal Methods in Verification
- Software Reliability and Analysis Research
- Transportation Planning and Optimization
- Graphene research and applications
- Urban and Freight Transport Logistics
- Outsourcing and Supply Chain Management
- Drilling and Well Engineering
- Automotive and Human Injury Biomechanics
- Air Quality and Health Impacts
- Safety Warnings and Signage
- Video Surveillance and Tracking Methods
- Hydraulic Fracturing and Reservoir Analysis
- Autonomous Vehicle Technology and Safety
- Sustainable Supply Chain Management
Southeast University
2025
Sinopec (China)
2024
Research Institute of Petroleum Exploration and Development
2024
Chongqing University of Posts and Telecommunications
2024
First Automotive Works (China)
2024
East China Normal University
2024
Southeast University
2020-2023
Chinese PLA General Hospital
2020-2023
Carnegie Mellon University
2020-2023
Chinese People's Liberation Army
2022
In this Letter, we present nondegenerate ultrafast optical pump-probe studies of the carrier recombination dynamics in MoS2 monolayers. By tuning probe to wavelengths much longer than exciton line, make transmission sensitive total population photoexcited electrons and holes. Our measurement reveals two distinct time scales over which holes recombine; a fast scale that lasts ∼ 2 ps slow 100 ps. The temperature pump fluence dependence observed are consistent with defect-assisted as being...
We measure the optical-absorption spectra and optical conductivities of excitons trions in monolayers metal dichalcogenide MoS${}_{2}$ compare results with theoretical models. Our show that Wannier-Mott model for modifications to account small exciton radii large relative wave function spread momentum space, phase space blocking due Pauli exclusion doped materials, wave-vector-dependent dielectric constant gives agree well experiments. The measured are used obtain experimental estimates fall...
We present results on the radiative lifetimes of excitons and trions in a monolayer metal dichalcogenide ${\mathrm{MoS}}_{2}$. The small exciton radius large optical oscillator strength result 0.18--0.30 ps range for that have in-plane momenta couple to radiation. Average thermally distributed depend linearly temperature can be few picoseconds at temperatures more than nanosecond near room temperature. Localized exhibit same lifetime increases as localization length decreases. are hundreds...
We present results on photoexcited carrier lifetimes in few-layer transition metal dichalcogenide MoS2 using nondegenerate ultrafast optical pump-probe technique. Our show a sharp increase of the with number layers sample. Carrier from few tens picoseconds monolayer samples to more than nanosecond 10-layer samples. The inverse lifetime was found scale according probability carriers being at surface layers, as given by wavefunction layer samples, which can be treated quantum wells. were...
Abstract The strong light emission and absorption exhibited by single atomic layer transitional metal dichalcogenides in the visible to near-infrared wavelength range make them attractive for optoelectronic applications. In this work, using two-pulse photovoltage correlation technique, we show that monolayer molybdenum disulfide photodetector can have intrinsic response times as short 3 ps implying photodetection bandwidths wide 300 GHz. fast is a result of electron–hole exciton lifetimes...
tsRNAs (tRNA-derived small RNAs), as products of the stress response, exert considerable influence on response and injury regulation. However, it remains largely unclear whether can ameliorate liver injury. Here, we demonstrate roles in alleviating by utilizing loss NSun2 (NOP2/Sun domain family, member 2) a tsRNAs-generating model. Mechanistically, reduces methyluridine-U5 (m5U) cytosine-C5 (m5C) tRNAs, followed production various tsRNAs, especially Class I (tRF-1s). Through further...
The strong Coulomb interactions and the small exciton radii in two-dimensional metal dichalcogenides can result very fast capture of electrons holes excitons by mid-gap defects from Auger processes. In processes considered here, an is annihilated at a defect site with electron (or hole) hole electron) scattered to high energy. case excitons, probability finding near each other enhanced many folds compared free uncorrelated holes. Consequently, rate carrier scattering for be 100--1000 times...
Aspergillus fumigatus is able to internalize into lung epithelial cells escape from immune attack for further dissemination. We previously reported that gliotoxin, a major mycotoxin of A. fumigatus, promotes this internalization; however, the mechanism remained unclear. Here, we report gliotoxin induce cofilin phosphorylation in A549 type II human pneumocytes. Either too high or low level blocked gliotoxin-induced actin cytoskeleton rearrangement and internalization. LIM domain kinase 1...
The exit areas of urban freeways always experience serious traffic safety and congestion problems. As a basic task, vehicle trajectory data are difficult to extract by traditional manual counting method because the complicated weaving flow large volume at freeways. This paper presents novel extraction composite framework combining YOLOv4 detection algorithm, SORT tracking algorithm KD-Tree reconstruction (YSKT algorithms framework). An unmanned aerial (UAV) was used collect videos areas,...
Telomerase activity is elevated in most cancer cells and required for telomere length maintenance immortalization of cells. Glucose metabolic reprogramming a hallmark accompanied with increased expression key enzymes. Whether these enzymes influence telomerase cell remains unclear. In the current study, we screened using assay identified lactate dehydrogenase B (LDHB) as regulator activity. Sodium sodium pyruvate did not activity, indicating LDHB regulates independent its metabolism...
Crash severity prediction has been raised as a key problem in traffic accident studies. Thus, to progress this area, study, thorough artificial neural network combined with an improved metaheuristic algorithm was developed and tested terms of its structure, training function, factor analysis, comparative results. Data from I5, interstate highway the Washington State during period 2011–2015, were used for fitting prediction, after setting theoretical three-layer (NN), Particle Swarm...
Modern software systems are deployed in a highly dynamic, uncertain environment. Ideally, system that is robust should be capable of establishing its most critical requirements even the presence possible deviations We propose technique called behavioral robustification, which involves systematically and rigorously improving robustness design against potential deviations. Given models environment, along with set user-specified deviations, our robustification method produces redesign...