Wen Hao Li
A5044557580- Dark Matter and Cosmic Phenomena
- Particle Detector Development and Performance
- Astrophysics and Cosmic Phenomena
- Radiation Therapy and Dosimetry
- Solar and Space Plasma Dynamics
- Particle physics theoretical and experimental studies
- Advanced Cellulose Research Studies
- Acoustic Wave Phenomena Research
- Rheology and Fluid Dynamics Studies
- Mining and Gasification Technologies
- Material Dynamics and Properties
- Radiation Detection and Scintillator Technologies
- Security in Wireless Sensor Networks
- Geotechnical Engineering and Soil Mechanics
- Polysaccharides and Plant Cell Walls
- Nuclear Physics and Applications
- Innovative Energy Harvesting Technologies
- Geotechnical and Geomechanical Engineering
- Neutrino Physics Research
- Natural Fiber Reinforced Composites
- Polysaccharides Composition and Applications
- Phase Change Materials Research
- Fractional Differential Equations Solutions
- Geotechnical and construction materials studies
- Solar Thermal and Photovoltaic Systems
China University of Mining and Technology
2024
University of Science and Technology of China
2021-2023
Purple Mountain Observatory
2021-2023
Chinese Academy of Sciences
2021-2023
Istituto Nazionale di Fisica Nucleare
2021-2023
Gran Sasso Science Institute
2021-2023
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso
2021-2023
University of Geneva
2021-2023
Linyi University
2023
Anhui Normal University
2023
The porous interconnected structure of three-dimensional graphene (3DC) combines the excellent thermal conductivity with an architecture, thereby creating a network within composites infused 3DC. In this study, improvements in conductivity, latent heat fusion (Hf), and shape stability paraffin were compared between phase-change materials (PCMs) 3DC discrete flakes (GP) at same filler loading to quantify advantage structure. Paraffin higher bulk density (3DCH) was also identify effects...
The DArk Matter Particle Explorer (DAMPE) is a satellite-borne experiment, in operation since 2015, aimed at studying cosmic rays and high-energy gamma rays. Proton helium are the first- second-most abundant components Given their smaller interaction cross sections with interstellar medium, compared to heavier nuclei, they can travel larger distances, thereby becoming important probes cosmic-ray sources as well acceleration propagation mechanisms. Recently, DAMPE collaboration, machine...
The DArk Matter Particle Explorer (DAMPE) is a space-borne high-energy particle detector launched on 17 December 2015. It can observe the $\gamma$-ray sky from $\sim 2$ GeV to 10 TeV with acceptance at most $1800~\rm cm^2\,sr$. With over 7.5 years of continuous operation, DAMPE has surveyed whole for about 15 times and collected more than 300,000 candidate photon events. In last few years, understanding payload been improved instrumental response functions have calibrated on-board data....
Thanks to its large calorimeter, the DArk Matter Particle Explorer (DAMPE) satellite experiment is ideally suited for direct detection of cosmic rays (CRs) up knee. At these TeV PeV energies, main uncertainty on CR flux measurements comes from hadronic cross sections, which are largely experimentally unconstrained. We developed novel machine learning (ML) tools that able probe depth at CRs inelastically interact inside DAMPE experiment. Applying techniques 7 years data, and comparing results...
The DArk Matter Particle Explorer (DAMPE) is a high-energy cosmic ray and gamma-ray detector located in space. Over period of seven years since its launch on December 17, 2015, DAMPE has surveyed the entire sky collected an extensive dataset more than 300,000 photons with energies above 2 GeV. To analyze data obtained by DAMPE, instrument response functions (IRFs) have been derived, specialized software called DmpST developed. In this context, we present results point-like source catalog....
The rheological properties of MR fluids, MRF-132LD, are investigated under the steady shear and oscillatory for a range operating temperatures from 20°C to 60°C. This was accomplished by using an advanced rheometer with parallel-plate configuration. Under shear, Herschel–Bulkley model is used rheology fluid. corresponding parameters namely, τ yd , K n were determined at various temperatures, in attempt minimize discrepancies between experimental results that predicted model. show all...
The DArk Matter Particle Explorer (DAMPE), a space-based high energy particle detector, has been operated on-orbit for more than five years. large geometric factor and good charge resolution enable DAMPE to have very potential measure cosmic-rays up 100 TeV. Knowledge of the boron carbon (B/C) flux ratio is important in understanding prop- agation cosmic rays, especially TeV range. In this contribution, latest progress B/C analysis based on flight data collected by during 5 years operation,...
Direct fabrication of electroactive shape memory polymer composites (eSMPCs) into complex non-planar geometries is highly desirable to enable remotely deployable, form-functional structures. However, traditional processes such as injection molding, casting, and extrusion limit the producible planar ribbons, wires, or tubes design deployment modes flattening-out/self-folding motions. To achieve low-voltage eSMPCs with a geometry, we report direct strategy bespoked-geometry via two-stage...
Boron nuclei in cosmic rays (CRs) are believed to be mainly produced by the fragmentation of heavier nuclei, such as carbon and oxygen, via collisions with interstellar matter. Therefore, boron-to-carbon flux ratio (B/C) boron-to-oxygen (B/O) very essential probes CR propagation. With a large geometric factor good charge resolution, DArk Matter Particle Explorer (DAMPE), is expected extend measurement B/C B/O up few TeV/n energies. In this contribution, direct measurements energy range from...
DAMPE (DArk Matter Particle Explorer) is a space-based particle detector that has been continuously taking data since its successful launch in December 2015. Its primary scientific goals include the indirect search of dark matter, study galactic cosmic rays with energy from few tens GeV up to hundreds TeV and high-energy gamma-ray astronomy. Spectral measurements secondary nuclei such as lithium, beryllium boron ratios fluxes are fundamental improve our understanding ray acceleration...
The DArk Matter Particle Explorer (DAMPE), a space-based high-energy particle detector, has been operated in orbit for more than seven years. Thanks to its large geometric factor, good charge resolution and wide dynamic range energy measurements, DAMPE can provide valuable insights into the spectra of cosmic ray carbon oxygen up tens TeV/n. These measurements are fundamental better understanding origin, acceleration mechanism propagation rays Galaxy. In this paper, we present latest progress...
The DArk Matter Particle Explorer (DAMPE) space mission is designed to measure cosmic rays and gamma rays. key sub-detector of DAMPE the Bismuth Germanium Oxide (BGO) Electromagnetic CALorimeter (ECAL), which measures energies electrons/gamma-rays ranging from 5 GeV - 10 TeV. fluorescence quenching effect has been observed for hadronic shower in sensitive unit BGO ECAL, cases yield no longer proportional deposited energies. However, it still unclear whether there a ECAL ~TeV electromagnetic...
Forbush Decrease (FD) is a rapid decrease and slow recover in the observed galactic cosmic ray intensity, caused by active solar events sweeping low energy rays (GCRs) away from Earth. Differnet properties of FDs have been different scientific experiment but mostly worldwide ground based Neutron Monitors (NMS), they focus on secondary neutron atmosphere. The Dark Matter Particle Explorer (DAMPE) satellite-based cosmic-ray that has stably operated for more than 7 years. Precise measurements...
The DArk Matter Particle Explorer (DAMPE) is a pioneering calorimetric experiment that has been successfully operating in space since December 2015, designed to detect cosmic rays up unprecedentedly high energies thanks the fine-grained thick BGO calorimeter and relatively large geometric factor. Among scientific goals of DAMPE are precise measurements cosmic-ray electron plus positron spectrum, including detection possible indirect dark matter signatures, spectral primary secondary species,...
Dark Matter Particle Explorer (DAMPE) is a calorimetric-type, satellite-borne detector for observations of high energy electrons, gamma-rays, and cosmic-ray nuclei. Using five years data collected with DAMPE from January 1, 2016 to December 31, 2020, we analyzed the spectrum iron. Detailed studies fragmentation iron in have been performed using Monte Carlo simulations.
DArk Matter Particle Explorer (DAMPE), a space-borne high energy cosmic ray and gamma-ray detector, has surveyed the whole sky for five years collected more than 220,000 photons above 2 GeV since launching on Dec. 17, 2015. The instrument response functions (IRFs) are derived dedicated software named DmpST is developed data analysis of DAMPE. Here we present method DAMPE bright sources search spectral analyses these sources.
This paper presents the demonstration of underwater thermoacoustic (TA) sound generation using three-dimensional graphene (3D-C). 3D-C is able to interface with water as immediate acoustic medium, resulting in reduced attenuation across solid packaging encapsulation due favorable impedance matching. shown array configurations 2*2 and 4*4 individual elements prepared onto printed circuit boards secured within a watertight cuboid Delrin container deionized water. Comparisons performance...
ABSTRACT: During the construction of coal mines in western China, many boreholes are drilled through artificially frozen Cretaceous and Jurassic formations. After experiencing one freeze-thaw cycle, these water-rich weakly cemented rocks generally demonstrate significant changes permeability mechanical properties, leading to frequent occurrences water intrusion flooding accidents. In this study, triaxial compression test were conducted on red sandstone under conditions both no cycle cycle....
In view of the phenomenon that interfacial adhesion between bamboo fiber（BF）and polylactic acid (PLA) is poor and incompatible. Firstly BF-g-PLA structure with hydrophobicity synthesized through grafting lactic into fiber, then plasticizing composite. Three-element compound plasticizer was prepared by mixing glycerol, tributyl citrate formamide. The effect proportion addition content three-element on compatibility composite investigated. BF-g-PLA/PLA composites were characterized scanning...
The carboxymethyl cellulose (CMC) is oxidized to the dialdehyde (DACMC) at extremely acid media by sodium periodate. reaction has been carried out pH 2.0, temperature 35°C for 1.5h, with a NaIO 4 /CMC molar ratio of 1.1. FTIR peaks confirm oxidation CMC DACMC. Furthermore, rheological properties and DACMC were investigated using steady shear dynamic viscoelastic measurement in range concentrations (0.5~1 wt%). All solutions showed thinning behavior over rate from 30°C 50°C. zero viscosity (η...
The DArk Matter Particle Explorer (DAMPE) is a satellite-borne particle detector launched on December 17th, 2015, with different scientific objectives, looking for signatures of Dark decay or annihilation, performing gamma-ray astronomy and providing precise measurements galactic Cosmic Ray (CR) energy spectra. Accurate hadronic interaction cross sections, playing key role in the determination CR fluxes. survival probabilities have been implemented to study sections BGO calorimeter target...
The existence of fractionally charged particles (FCP) is foreseen in extensions or beyond the Standard Model particle physics. Most previously conducted searches for FCPs cosmic rays were based on experiments underground at high altitudes. However, there have been few carried out orbit other than AMS-01 flown by a space shuttle and BESS balloon top atmosphere. In this study, we conduct an FCP search on-orbit data obtained using Dark Matter Particle Explorer (DAMPE) satellite over period five...
DAMPE space-borne cosmic ray experiment has been collecting data since December 2015. Many high-impact results on the ion, electron and photon fluxes were obtained. This submission presents carbon flux analysis with using machine learning techniques. The readout electronics would saturate at energy deposits above several TeV in a single BGO bar of calorimeter. total loss per event due to saturation can sometimes reach over hundred TeV. We present convolutional neural network model which...
It is currently well established that proton and helium constitute the main component of cosmic radiation in energy range from tens GeV to hundreds TeV. Their direct detection separation have been carried out past years using several space-based instruments long-flying balloons, while ground-based experiments provided results at high energies but with large systematics due limited mass resolution. Surprisingly, two structures were found measurements individual spectra which deviates single...