A5102810939- Particle physics theoretical and experimental studies
- Quantum Chromodynamics and Particle Interactions
- High-Energy Particle Collisions Research
- Neutrino Physics Research
- Computational Physics and Python Applications
- Black Holes and Theoretical Physics
- Dark Matter and Cosmic Phenomena
- Astrophysics and Cosmic Phenomena
- Indoor and Outdoor Localization Technologies
- Atomic and Subatomic Physics Research
- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- advanced mathematical theories
- Stochastic processes and statistical mechanics
- Energy Harvesting in Wireless Networks
- Nuclear physics research studies
- Speech and Audio Processing
- Advanced SAR Imaging Techniques
- UAV Applications and Optimization
- Underwater Vehicles and Communication Systems
- Robotics and Sensor-Based Localization
- Advanced MIMO Systems Optimization
- Energy Efficient Wireless Sensor Networks
- Radiation Detection and Scintillator Technologies
- Video Surveillance and Tracking Methods
Tsinghua University
2022-2025
China University of Geosciences
2023-2024
Institute of High Energy Physics
2015-2024
University of Science and Technology of China
2009-2024
Xuzhou Medical College
2024
Xiamen University
2024
Huzhou University
2023
University of Maryland, College Park
2021
University of Alabama
2013-2018
Central China Normal University
2017
With the rapid development of Internet Things (IoT) and rise 5G communication networks automatic driving, millimeter wave (mmWave) sensing is emerging starts impacting our life workspace. mmWave can sense humans objects in a contactless way, providing fine-grained ability. In past few years, many techniques have been proposed applied various human applications (e.g., localization, gesture recognition, vital monitoring). We discover need comprehensive survey to summarize technology, platforms...
We present <sc xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">MicNest</small> : an acoustic localization system enabling precise drone landing. In , multiple microphones are deployed on a landing platform in carefully devised configurations. The carries speaker transmitting purposefully-designed pulses. may be localized as long the pulses correctly detected. Doing so is challenging: <italic xmlns:xlink="http://www.w3.org/1999/xlink">i)</i> because...
Using the BES-II detector at BEPC Collider, we measured lowest order cross sections and R values (R=σe+e−→hadrons0/σe+e−→μ+μ−0) for inclusive hadronic event production center-of-mass energies of 3.650, 3.6648 3.773 GeV. The results lead to R¯uds=2.218±0.019±0.089 which is average these 3.650 GeV GeV, R=3.746±0.037±0.187 s=3.773GeV. We determined section ψ(3770) be σψ(3770)B=(9.323±0.253±0.801)nb branching fractions decays BF(ψ(3770)→D0D¯0)=(49.5±1.3±3.8)%, BF(ψ(3770)→D+D−)=(35.7±1.1±3.4)%...
We measure the branching fractions for $\ensuremath{\psi}(3770)\ensuremath{\rightarrow}{D}^{0}{\overline{D}}^{0}$, ${D}^{+}{D}^{\ensuremath{-}}$, $D\overline{D}$, and non-$D\overline{D}$ to be $(46.7\ifmmode\pm\else\textpm\fi{}4.7\ifmmode\pm\else\textpm\fi{}2.3)%$, $(36.9\ifmmode\pm\else\textpm\fi{}3.7\ifmmode\pm\else\textpm\fi{}2.8)%$, $(83.6\ifmmode\pm\else\textpm\fi{}7.3\ifmmode\pm\else\textpm\fi{}4.2)%$, $(16.4\ifmmode\pm\else\textpm\fi{}7.3\ifmmode\pm\else\textpm\fi{}4.2)%$,...
WiFi-based device localization is a key technology for smart applications, while most of which rely on LoS signals to work. However, in real-world indoor environments, very few are usable accurate localization. This paper presents Bifrost , novel hardware-software co-design cope with this practical problem. The core idea reinvent WiFi provide sufficient signals. Specifically, we present low-cost plug-in design leaky wave antenna (LWA) that can generate orthogonal polarized signals: On one...
We present Acoustic Inertial Measurement (AIM), a one-of-a-kind technique for indoor drone localization and tracking. Indoor tracking are arguably crucial, yet unsolved challenge: in GPS-denied environments, existing approaches enjoy limited applicability, especially Non-Line of Sight (NLoS), require extensive environment instrumentation, or demand considerable hardware/software changes on drones. In contrast, AIM exploits the acoustic characteristics drones to estimate their location derive...
We present MicNest: an acoustic localization system enabling precise landing of aerial drones. Drone is a crucial step in drone's operation, especially as high-bandwidth wireless networks, such 5G, enable beyond-line-of-sight operation shared airspace and applications instant asset delivery with drones gain traction. In MicNest, multiple microphones are deployed on platform carefully devised configurations. The drone carries speaker transmitting purposefully-designed pulses. may be localized...
We report measurements of the continuum R(uds) near center-of-mass energy 3.70 GeV, R[uds(c)+psi(3770)](s) and R(had)(s) values in e(+)e(-) annihilation at 68 points region between 3.650 3.872 GeV with BES-II detector BEPC Collider. obtain for light hadron (containing u, d, s quarks) production DD threshold to be R(uds)=2.141+/-0.025+/-0.085.
The decay $J/\psi \to \omega p \bar p$ is studied using a $5.8 \times 10^7$ $J/\psi$ event sample accumulated with the BES II detector at Beijing electron-positron collider. branching fraction measured to be $B(J/\psi p)=(9.8\pm 0.3\pm 1.4)\times 10^{-4}$. No significant enhancement near $p\bar mass threshold observed, and an upper limit of X(1860))B(X(1860)\to p\bar p)$$ $$< 1.5 10^{-5}$ determined 95% confidence level, where X(1860) designates near-threshold seen in spectrum \gamma decays.
This paper proposes Meta-Speaker, an innovative speaker capable of projecting audible sources into the air with a high level manipulability. Unlike traditional speakers that emit sound waves in all directions, Meta-Speaker can manipulate granularity region, down to single point, and location source. Additionally, source projected by is physical presence space, allowing both humans machines perceive it spatial awareness. achieves this leveraging fact nonlinear medium, which enables...
Small Unmanned Aerial Vehicles (UAVs) are becoming potential threats to security-sensitive areas and personal privacy. A UAV can shoot photos at height, but how detect such an uninvited intruder is open problem. This paper presents mmHawkeye, a passive approach for detection with COTS millimeter wave (mmWave) radar. mmHawkeye doesn't require prior knowledge of the type, motions, flight trajectory UAV, while exploiting signal feature induced by UAV's periodic micro-motion (PMM) long-range...
We present Acoustic Inertial Measurement (AIM), a one-of-a-kind technique for indoor drone localization and tracking. Indoor tracking are arguably crucial, yet unsolved challenge: in GPS-denied environments, existing approaches enjoy limited applicability, especially Non-Line of Sight (NLoS), require extensive environment instrumentation, or demand considerable hardware/software changes on drones. In contrast, AIM exploits the acoustic characteristics drones to estimate their location derive...
Using $5.8 \times 10^7 J/\psi$ events collected in the BESII detector, radiative decay $J/\psi \to \gamma \phi K^+ K^- K^0_S K^0_L$ is studied. The $\phi\phi$ invariant mass distribution exhibits a near-threshold enhancement that peaks around 2.24 GeV/$c^{2}$. A partial wave analysis shows structure dominated by $0^{-+}$ state ($\eta(2225)$) with of $2.24^{+0.03}_{-0.02}{}^{+0.03}_{-0.02}$ GeV/$c^{2}$ and width $0.19 \pm 0.03^{+0.06}_{-0.04}$ product branching fraction is: $Br(J/\psi...
Based on 58 million J/ψ events collected by the BES II detector at BEPC, → Λ π+π− is observed for first time. The branching fraction measured to be Br(J/ψ π+π−) = (4.30±0.13±0.99)×10−3, excluding decays intermediate states, namely Ξ−+, Σ(1385)−(1385)+, and Σ(1385)+(1385)−. fractions these resonance channels are be: Ξ−+) (0.90±0.03±0.18)×10−3, Σ(1385)−(1385)+) (1.23±0.07±0.30)×10−3, Σ(1385)+(1385)−) (1.50±0.08±0.38)×10−3, respectively. angular distribution of form ∝ (1 + αcos2θ) with α...
The yields and production rates of the radioisotopes $^9$Li $^8$He created by cosmic muon spallation on $^{12}$C, have been measured two detectors Double Chooz experiment. identical are located at separate sites depths, which means they subject to different spectra. near (far) detector has an overburden $\sim$120 m.w.e. ($\sim$300 m.w.e.) corresponding a mean energy $32.1\pm2.0\,\mathrm{GeV}$ ($63.7\pm5.5\,\mathrm{GeV}$). Comparing data detailed simulation decays, contribution radioisotope...