Wenyi Bian
A5025796474- Astrophysics and Cosmic Phenomena
- Dark Matter and Cosmic Phenomena
- Neutrino Physics Research
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Advanced Photocatalysis Techniques
- Particle Detector Development and Performance
- Catalysis and Oxidation Reactions
- Solar and Space Plasma Dynamics
- Postharvest Quality and Shelf Life Management
- Catalysis and Hydrodesulfurization Studies
- Carbon and Quantum Dots Applications
- Nanocomposite Films for Food Packaging
- Caching and Content Delivery
- Astrophysical Phenomena and Observations
- Advancements in Battery Materials
- Phase Change Materials Research
- Ammonia Synthesis and Nitrogen Reduction
- Gold and Silver Nanoparticles Synthesis and Applications
- Meat and Animal Product Quality
- Radioactivity and Radon Measurements
- Advanced battery technologies research
- Catalysts for Methane Reforming
- Radiation Detection and Scintillator Technologies
- Pulsars and Gravitational Waves Research
Soochow University
2019-2023
Shanghai Jiao Tong University
2023
Max Planck Institute for Nuclear Physics
2023
Shanghai Institute of Technology
2017-2022
The role of elevated temperatures in electrolysis has generally been regarded as accelerations electron transport, mass and adsorption/desorption processes. In the present work, with first-principles calculations, we demonstrate that thermally activated on-surface reactions can significantly increase efficiency energy conversions via a electrically cascaded mechanism. oxygen evolution reaction (OER), to be specific, formation high-energy *OOH on Fe assisted by combination *O *OH surface...
Relatively high levels of clove essential oil (CEO) necessary for in vivo inhibition postharvest pathogens imply that its antifungal activity should be reinforced. Hence, this study aimed to determine whether microencapsulation technology enhances the CEO against Penicillium digitatum, causal agent citrus green mould, vitro and on Navel oranges. Microencapsulation resulted a respective reduction minimum inhibitory concentration fungicidal from 500 μg/ml 125 250 μg/ml, indicating enhancement...
The development of highly selective catalysts has been remarkably relying on the understanding catalytic active sites. Pd-catalyzed semihydrogenation propyne a focus research with industrial applications toward production polymer-grade propylene. In this work, combining density functional theory (DFT) calculations and experimental observations, we propose that, different from existing debates where formation palladium carbide (Pd–C) species or specific facets Pd nanoparticles are critical,...
In this study, we evaluated the combined effect of cinnamon essential oil (CEO) microemulsions, and a temperature buffering package using phase-change material (PCM) microcapsules on physicochemical property, lipid oxidation, bacterial load traditional Chinese pork balls (shi zi tou) during fluctuation storage for 9 days.Transmission electron microscope characterization revealed that n-tetradecane possessed core-shell spherical shape with size ranging from 300 to 600 nm. The use microcapsule...
Salicylic acid (SA) is a natural inducer of disease resistance in fruit, but its application the food industry limited due to low water solubility. Here, SA was encapsulated β-cyclodextrin (β-CD) via host–guest inclusion complexation method, and efficacy microcapsules (SAM) against blue mold caused by Penicillium expansum postharvest apple fruit elucidated. It observed that SAM most effective inhibiting mycelial growth P. vitro. also superior for control under vivo conditions. Enzyme...
Atomically dispersed Fe atoms on a non-defective VS 2 monolayer as high loading, scalable and stable single atom catalyst for electrochemical nitrogen reduction.
The Southern Wide-field Gamma-ray Observatory (SWGO) is a project by scientists and engineers from 14 countries 78 institutions to design build the first wide-field, ground-based gamma-ray observatory in Hemisphere, with high duty cycle covering an energy range rom hundreds of GeV PeV scale. will cover sky aims map Galaxy's large-scale emission, as well detecting transient variable phenomena. host sites under consideration are at minimum altitude 4400 m.a.s.l. comprise two types: flat...
Dark matter is thought to make up most of the density Universe, yet its true nature remains uncertain. Among dark theories, Weakly Interacting Massive Particles (WIMPs) are a prominent candidate for because they can reproduce observed abundance in universe. There various methods searching WIMPs, one which indirect detection, involves looking Standard Model particles produced by decay or self-annihilation particles. Within mass range GeV PeV particle, this type search be conducted detecting...
Aqueous rechargeable batteries are promising candidates for safe and large-scale energy storage systems, but their electrochemical performances limited by anode degradation. Herein, poly(2,5-dihydroxy-1,4-benzoquinone-3,6-methylene) (PDBM) is introduced as a typical benzoquinone-based material in an aqueous battery. A superior higher specific capacity longer cycling life (255 mA h g–1 83% retention 700 cycles at 1 C) were obtained mixed M Li2SO4//2 ZnSO4 electrolyte, which better than that...
Simulations of the cosmic-ray (CR) anisotropy down to TeV energies are presented, using turbulence parameters consistent with those inferred from observations interstellar medium. We compute angular power spectra $C_{\ell}$ CR obtained simulations. demonstrate that amplitude large scale gradient in density profile affects only overall normalisation $C_{\ell}$s, without affecting shape spectrum. show spectrum depends on energy, and it is sensitive location observer at small $\ell$. It found...
Water-Cherenkov detectors (WCD) have been manufactured in Australia by the company AQUAMATE as part of R&D activities for SWGO. They consist a steel tank frame with bladder on its interior satisfying SWGO double-layer design. Tanks and bladders custom designed to optimally accommodate inside minimal material usage. are delivered compact boxes that easy transport. These fit 24 tanks 20-foot container. The design has introduced new features improve discrimination between gamma-rays cosmic...
Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and amplitude of dipole at energies around tens TeV. Due to charged nature these particles, presence magnetic fields our galaxy, an underlying composition-dependent is expected. For this reason, combining measurements composition distribution arrival directions essential for unveiling astrophysical origin structure. In work, we study potential upcoming Southern Wide-field Gamma-ray Observatory...
The Southern Wide-field Gamma-ray Observatory (SWGO) is a proposed facility for ground-based gamma-ray astronomy. It will consist of an array water Cherenkov detectors to detect astrophysical gamma-rays mainly in the range hundreds GeV up PeV scale. To be constructed South America, it feature approximately two-steradian field view and duty cycle close 100%, which complement current generation instruments by extending survey coverage Hemisphere. As part development SWGO standard...
Wavelength-shifting (WLS) materials contain molecules that absorb light and reemit at longer wavelengths. They can be used for detection because they provide a large effective area low cost are able to efficiently trap guide of total internal reflection processes. We currently developing such WLS detector, considering two main designs: A single-shift design with one wavelength shift (tile) double-shift shifts (tile fiber). As photodetectors we use small Silicon photomultipliers (SiPMs) high...
The SWGO Collaboration is evaluating the possibility of deploying Water Cherenkov Detectors (WCD) in a high-altitude natural lake. For that, first challenge to build bladder strong enough that could be used as WCD inside A prototype has been designed for and two bladders, made different films, have deployed testing at Sibinacocha lake, Peru, 5000 masl. In order monitor wave intensity low-cost oceanographic buoy was developed using an acceleration sensor MPU6050 liquid DS18B20. development...
The Southern Wide-field Gamma-ray Observatory (SWGO) is an international collaboration working on a ground-based gamma-ray observatory that will be located in the southern hemisphere. A crucial step analysis to identify showers produced by gamma rays and separate them from abundant background of hadronic showers. In this work, we propose adapt observable $S_b$ used successfully composition studies Pierre Auger SWGO detector. This takes into account signal position each triggered It...
The recent discovery of PeV gamma-ray emission especially from the LHAASO observatory, located in Northern hemisphere, boosted relevance observing Southern sky at such energies. SWGO (SouthernWide-Field Gamma-Ray Observatory) is largest proposed detector with sensitivity 100 TeV-1 energy range. baseline idea a km^2 array water tanks to be placed above 4,400ma.s.l. Andes, South America. In this contribution, we have studied particle content and morphology Extensive Air Showers (EAS) generated...
We present the concept of a shallow, single-layer, multi-PMT water Cherenkov detector (WCD) unit for ground-based gamma-ray astronomy. The design was developed as part R&D activities SWGO, candidate WCD solution future Observatory. main objective proposal is to achieve low-volume single-layer surface detection with good calorimetry and timing shower front, excellent gamma-hadron discrimination capability. name, Mercedes, derived from its configuration, where 3 PMTs are positioned equidistant...
Propagating individual cosmic rays in synthetic three-dimensional Kolmogorov turbulence, we calculate their anisotropy at the location of an observer. These are first calculations ray down to TeV energies for values turbulence coherence length that realistic interstellar medium. We power spectrum 𝐶𝑙, different observer locations, and compare with observations. also decompose onto spherical harmonics, show important distinction should be made between higher order multipoles aligned local...
The arrival directions of TeV cosmic rays on the sky display an anisotropy at 0.1 percent level. This contains a dipole and higher order multipoles. Small-scale anisotropies should contain important information about properties turbulent magnetic fields in interstellar medium [1]. These have been predicted to vary time-scale decade energies [2]. To date, no time variation has detected. Whether experiments can detect such variations or not depends their energy resolutions (△𝐸/𝐸). Finite...