Fengmin Wu
YOU?
Author Swipe
Research Progress of Diffusion Model in Crowd Activity Analysis Open
In crowded settings, crowd behavior analysis plays a crucial role in ensuring public safety. Although traditional generative models such as GANs and VAEs have been applied to tasks such as crowd anomaly detection and trajectory prediction,…
Fabrication of Highly Anisotropic Large‐Area <i>β</i>‐Ga<sub>2</sub>O<sub>3</sub> Thin Films via Crystal Orientation Engineering for Multifunctional Solar‐Blind Polarization‐Sensitive Photodetectors Open
Solar‐blind polarization‐sensitive photodetector exhibits high selectivity for deep UV light, making it valuable for applications in secure communication, fast radio burst monitoring, industrial material inspection, and so on. β ‐Ga 2 O 3 …
Enhanced Performance of Gallium‐Based Wide Bandgap Oxide Semiconductor Heterojunction Photodetector for Solar‐Blind Optical Communication via Oxygen Vacancy Electrical Activity Modulation Open
Gallium oxide ( β ‐Ga 2 O 3 ) is a prominent representative of the new generation of wide‐bandgap semiconductors, boasting a bandgap of ≈4.9 eV. However, the growth process of β ‐Ga 2 O 3 materials introduces unavoidable oxygen vacancies (…
Structure and electrical properties of La<sub>2</sub>O<sub>3</sub>-doped (K,Na,Li)(Nb,Ta)O<sub>3</sub>-(Bi,Na)TiO<sub>3</sub> ceramics Open
In this paper, Lead-free based on 0.97([Formula: see text][Formula: see text][Formula: see text])([Formula: see text][Formula: see text])O 3 –0.03[Formula: see text][Formula: see text]TiO 3 with additives La 2 O 3 (1, 2, 3, 4 wt.%) was pre…
Microstructure and Electric Properties of Bi2O3-Doped (K0.5Na0.5)NbO3 Lead-Free Ceramics Open
In this paper, Bi2O3-doped (K0.5Na0.5)NbO3 (x = 0.1, 0.2, 0.3, 0.4) lead-free ceramics are prepared by a conventional solid-state reaction and analyzed by studying the structure, ferroelectric, and piezoelectric properties. It is found tha…
Centrality-dependent chemical potentials of light hadrons and quarks based on transverse momentum spectra and particle yield ratios in Au-Au collisions Open
We describe the transverse momentum spectra of $π^\pm$, $K^\pm$, $p$, and $\bar{p}$ produced in different centralities gold-gold (Au-Au) collisions at different collision energies range from 7.7 to 62.4 GeV by a two-component Erlang distri…
View article: NIR Photocatalysis: Plasmonic Enhanced Reactive Oxygen Species Activation on Low‐Work‐Function Tungsten Nitride for Direct Near‐Infrared Driven Photocatalysis (Small 45/2020)
NIR Photocatalysis: Plasmonic Enhanced Reactive Oxygen Species Activation on Low‐Work‐Function Tungsten Nitride for Direct Near‐Infrared Driven Photocatalysis (Small 45/2020) Open
Danqing Liu, Chongshen Guo, Bin Yang, and co-workers report the plasmonic enhanced ROS activation on low-work-function tungsten nitride for near infrared (NIR)-driven photocatalysis (article number 2004557). In the cover image, the atomic …
Structural and Electric Properties of MnO2-Doped KNN-LT Lead-Free Piezoelectric Ceramics Open
Structural, ferroelectric, dielectric, and piezoelectric properties of K0.5Na0.5NbO3-LiTaO3-xmol%MnO2 lead-free piezoelectric ceramics with 0.0 ≤ x ≤ 0.3 were studied. The ceramic samples were synthesized through the conventional solid-sta…
Active graphene metamaterial absorber for terahertz absorption bandwidth, intensity and frequency control Open
A novel graphene-based metamaterial absorber with actively tunable bandwidth, intensity and frequency, working at the terahertz (THz) spectral region, was designed and numerically investigated in this paper. The actively controlled absorpt…
Tunable electromagnetically induced transparency based on terahertz graphene metamaterial Open
The terahertz EIT graphene metamaterial, consisting of two coupled split ring resonators placed in orthogonally twisted fashion, was proposed by patterning graphene. An actively controlled EIT peak can be obtained by changing relaxation ti…
Electrically active manipulation of electromagnetic induced transparency in hybrid terahertz metamaterial Open
In this paper, we numerically demonstrate that an actively controllable electromagnetic induced transparency (EIT) behavior can be obtained in a hybrid terahertz metamaterial. A unit cell of the hybrid metamaterial consists of a metallic s…