Qi Xi

ORCID: 0000-0001-6499-7805
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About
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Research Areas
  • Magnetic Field Sensors Techniques
  • Atomic and Subatomic Physics Research
  • Acoustic Wave Resonator Technologies
  • Hydraulic Fracturing and Reservoir Analysis
  • Evaluation and Optimization Models
  • Synthesis and properties of polymers
  • Surface Modification and Superhydrophobicity
  • Advanced MEMS and NEMS Technologies
  • Polymer Foaming and Composites
  • Advanced Fiber Optic Sensors
  • Fluid Dynamics and Turbulent Flows
  • Analytical Chemistry and Sensors
  • Security and Verification in Computing
  • 2D Materials and Applications
  • Graphene research and applications
  • Antenna Design and Analysis
  • Engineering Applied Research
  • Value Engineering and Management
  • Nanotechnology research and applications
  • Coordination Chemistry and Organometallics
  • Enhanced Oil Recovery Techniques
  • Advanced Decision-Making Techniques
  • Asymmetric Synthesis and Catalysis
  • Direction-of-Arrival Estimation Techniques
  • Hydrocarbon exploration and reservoir analysis

Beijing University of Chemical Technology
2025

Institute of Solid State Physics
2025

Chinese Academy of Sciences
2025

University of Science and Technology of China
2025

Northwestern Polytechnical University
2022-2024

Northwest Normal University
2024

Tencent (China)
2020

Beijing Jiaotong University
2020

China Mobile (China)
2020

Xi'an Shiyou University
2019

Unveiling the nonlinear interactions between terahertz (THz) electromagnetic waves and free carriers in two-dimensional materials is crucial for development of high-field high-frequency electronic devices. Herein, we investigate THz transport dynamics a monolayer graphene/MoS2 heterostructure using time-resolved spectroscopy with intense pulses as probe. Following ultrafast photoexcitation, interfacial charge transfer establishes nonequilibrium carrier redistribution, leaving holes graphene...

10.1021/acs.jpclett.4c03138 article EN The Journal of Physical Chemistry Letters 2025-01-07

Antenna miniaturization technology has been a challenging problem in the field of antenna design. The demand for is even stronger because larger size low-frequency band. In this paper, we consider MEMS magnetoelectric antennas based on mechanical resonance, which sense magnetic fields electromagnetic waves through (ME) effect at their resonance frequencies, giving voltage output. A 70 μm diameter cantilever disk with SiO2/Cr/Au/AlN/Cr/Au/FeGaB stacked layers prepared 300 silicon wafer using...

10.3390/mi13060864 article EN cc-by Micromachines 2022-05-30

This article presents a sapphire-based Fabry–Perot acoustic sensor with potential for application in harsh environment sensing. The key component of the is thin sapphire diaphragm diameter 20 mm and thickness down to 10 proposed Au–Au bonding-associated lapping polishing technique. Microfabrication characterizations have corroborated availability realizing wafer-class fabrication by employing technique, can be then easily transferred assembled as sensor. strategy optimizing stripping...

10.1109/jsen.2022.3201575 article EN IEEE Sensors Journal 2022-09-05

Content Security Policy CSP is a popular and effective security mechanism against content injection vulnerabilities such as cross-site scripting for web applications. Unfortunately, there are many problems in analysis, design, evaluation of CSP, which hindering the wide adoption by real-world In this paper, we give systematic study propose workable solutions these problems. We systemically analyze methodology namely how it works prevents attacks. present weaknesses methodology, attacks...

10.1002/sec.1562 article EN Security and Communication Networks 2016-07-07

Preparation of gradient porous membranes with stimulus-responsive, self-healing and UV-blocking properties.

10.1039/d3lp00141e article EN cc-by-nc RSC Applied Polymers 2024-01-01

In response to the growing demand for high-real-time F-P demodulation algorithms, we present a novel Hilbert orthogonal algorithm, HT-CORDIC, which is based on Coordinate Rotation Digital Computer (CORDIC) algorithm. HT-CORDIC aims balance accuracy and real-time performance. The algorithm employs transform identify signals, determines specific phase difference through Givens transform, then extracts cavity length vector of CORDIC was evaluated series simulations experiments conducted EFPI...

10.1364/opticaopen.27098836 preprint EN 2024-09-25

In response to the growing demand for high-real-time F-P demodulation algorithms, we present a novel Hilbert orthogonal algorithm, HT-CORDIC, which is based on Coordinate Rotation Digital Computer (CORDIC) algorithm. HT-CORDIC aims balance accuracy and real-time performance. The algorithm employs transform identify signals, determines specific phase difference through Givens transform, then extracts cavity length vector of CORDIC was evaluated series simulations experiments conducted EFPI...

10.1364/opticaopen.27098836.v1 preprint EN 2024-09-25

In response to the growing demand for high-real-time F-P demodulation algorithms, we present a novel Hilbert orthogonal algorithm, HT-CORDIC, which is based on Coordinate Rotation Digital Computer (CORDIC) algorithm. HT-CORDIC aims balance accuracy and real-time performance. The algorithm employs transform identify signals, determines specific phase difference through Givens transform, then extracts cavity length vector of CORDIC was evaluated series simulations experiments conducted EFPI...

10.1364/opticaopen.27098836.v2 preprint EN 2024-09-26

In response to the growing demand for high-real-time F-P demodulation algorithms, we present a novel Hilbert orthogonal algorithm, HT-CORDIC, which is based on Coordinate Rotation Digital Computer (CORDIC) algorithm. HT-CORDIC aims balance accuracy and real-time performance. The algorithm employs transform identify signals, determines specific phase difference through Givens transform, then extracts cavity length vector of CORDIC was evaluated series simulations experiments conducted EFPI...

10.1364/opticaopen.27098836.v3 preprint EN cc-by-nc-sa 2024-11-11

This paper presents a guided-mode resonance (GMR) reflector for sapphire based Fabry-Perot (F-P) sensors that enables tunable or wideband high reflectance with temperature resistance,which is expected to effectively regulate the performance of F-P and offer novel approach designing in harsh environments. Intrinsic extrinsic GMR gratings are proposed, their optical thermal properties investigated compared through numerical simulations, such as rigorous coupled-wave analysis finite element...

10.1109/jphot.2022.3168558 article EN cc-by IEEE photonics journal 2022-04-19

In the present article we report preparation of alkylaryldichlorocyclopropanol phosphates by addition dichlorocarbene to enol propiophenone and cyclohexanone with steric hinderance. The stereoselectivity effect substituents on carbene rate are discussed.

10.1080/10426500307780 article EN Phosphorus, sulfur, and silicon and the related elements 2003-01-01
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