Jun Dai

ORCID: 0000-0002-6726-1198
Publications
Citations
Views
---
Saved
---
About
Contact & Profiles
Research Areas
  • Advanced Sensor and Energy Harvesting Materials
  • Vibration Control and Rheological Fluids
  • Innovative Energy Harvesting Technologies
  • Metal and Thin Film Mechanics
  • Vibration and Dynamic Analysis
  • Advanced MEMS and NEMS Technologies
  • Hydraulic and Pneumatic Systems
  • Integrated Circuits and Semiconductor Failure Analysis
  • Diamond and Carbon-based Materials Research
  • Advanced materials and composites
  • Satellite Image Processing and Photogrammetry
  • Semiconductor materials and devices
  • Wireless Power Transfer Systems
  • Energy Harvesting in Wireless Networks
  • Photonic and Optical Devices
  • Remote Sensing and LiDAR Applications
  • Inertial Sensor and Navigation
  • Advanced Measurement and Detection Methods
  • Tactile and Sensory Interactions
  • Metal Alloys Wear and Properties
  • Fluid Dynamics and Vibration Analysis
  • Semiconductor Lasers and Optical Devices
  • Optical Systems and Laser Technology
  • Copper Interconnects and Reliability
  • Electrochemical sensors and biosensors

Beijing Institute of Technology
2011-2025

Hunan University
2024

Hunan International Economics University
2024

China Academy of Space Technology
2017-2021

PLA Army Service Academy
2017

The University of Tokyo
2013-2014

NTT (Japan)
2013-2014

NTT Basic Research Laboratories
2013-2014

Aerospace Technology Institute
2013

Industrial Technology Research Institute
2001

Uninterrupted, efficient power supplies have posed a significant hurdle to the ubiquitous adoption of wearable devices, despite their potential for revolutionizing human‒machine interactions. This challenge is further compounded by requirement these devices supply dependable energy data-intensive sensing and transmission. Traditional thermoelectric solutions fail deliver satisfactory performance under conditions extremely low voltages. Here, we present novel solution generator integrated...

10.1038/s41378-023-00583-3 article EN cc-by Microsystems & Nanoengineering 2023-08-24

The GaoFen-7 (GF-7) satellite, which was launched on November 3, 2019, is China's first civilian submeter stereo mapping satellite. satellite equipped with the laser altimeter officially in China for earth observation. Except altimeter, GF-7 spaceborne system also includes two footprint cameras and a optical axis surveillance camera. designed used to assist improving elevation accuracy without ground control points of line-array cameras. This article details design system, its ranging...

10.1109/jstars.2020.2977935 article EN cc-by IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2020-01-01

In situ monitoring of H2O2 in cellular microenvironments plays a critical role the early diagnosis and pretreatment cancer, but is limited by lack efficient low-cost strategies for large-scale preparation real-time biosensors. Herein, universal strategy MXene-based composite inks combined with scalable screen-printing process validated manufacturing electrochemical biosensors detection secreted from live cells. Compositing biocompatible carboxymethyl cellulose (CMCS) excellent conductive...

10.1039/d4nr01328j article EN Nanoscale 2024-01-01

To improve the tribological performance of servo steering gear bearing, five different Ni60A/WC-Co12 composite coatings were prepared by using high-velocity oxygen fuel technology (HVOF). The friction and wear properties these under four loads (2N, 5N, 8N, 11N) investigated. results showed that in ratio 30%Ni60A/70%WC-Co12 had most excellent reduction resistance. Under this ratio, coefficient decreases with increase load. Further studies illustrate structure coating is more conducive to...

10.1117/12.3060065 article EN 2025-03-05

Ni60A/WC-Co12 is a bearing coating material with good tribological properties, which can effectively reduce surface wear. To study the anti-wear mechanism of as material, five different composite coatings were prepared, and was studied. The results show that 30%Ni60A/70%WC-Co12 has best wear resistance. It further proved this because there transfer film in friction process, promotes abrasive particles thus avoiding occurrence research provides theory support for improving performance prolonging life.

10.1117/12.3060084 article EN 2025-03-05

Abstract Designing efficient low‐cost earth‐abundant metal electrodes for enhanced energy storage and sluggish oxygen evolution reactions (OERs) poses significant challenges in electrochemistry. Herein an innovative approach to boost the activity of FeOOH nanorods catalytic OER by initiating intrinsic sulfate ion (SO 4 2− ) modulation is proposed. Through a one‐step hydrothermal synthesis using polymeric ferric precursor, it successfully cultivated sulfated iron oxyhydroxide (S‐FeOOH)...

10.1002/smll.202412645 article EN Small 2025-03-18

The performance of miniature mechatronic systems can be significantly improved by incorporating the magnetorheological (MR) fluid-based rotary brake. However, small-size effect becomes evident in process miniaturization. Our observation indicates that a MR brake exhibits slight eccentricity 0.43 mm when its rotational axis is runs at speed 16,000 rpm. maximum torque error between compound motion model and calculated dynamic based on experimental rotation n reached 47.4%, average rate only...

10.1177/1045389x251326620 article EN Journal of Intelligent Material Systems and Structures 2025-03-30

Abstract Developing durable electrocatalysts with high activity for the oxygen evolution reaction (OER) and hydrogen (HER) in acidic media is critically important clean power production. In this study, MoS 2− x −NbS heterostructure nanosheets are synthesized from a solid‐state method followed by liquid phase exfoliation, their catalytic performance optimized. The optimal precursors ratio exhibit promising attributes applications HER OER compared to pristine 2 Nb under same conditions....

10.1002/smll.202501464 article EN Small 2025-04-01

Extending the analog output function has become an important trend in current MEMS optical switches. The electrothermal actuator is a potential candidate for realizing switch since displacement can be continuously controlled throughout its driving range. However, most existing micromirrors employ out-of-plane motion, which directly driven by actuator, design flexibility limited and temperature effect cannot ignored. In this article, designed based on coupling of mass–spring system, sidewall...

10.1109/tmech.2023.3238109 article EN IEEE/ASME Transactions on Mechatronics 2023-02-10

Revolutionizing moisture-enabled power generation: high-current, flexible MEGs for sustainable wearable electronics.

10.1039/d4ta05041j article EN Journal of Materials Chemistry A 2024-01-01

In this study, a Magnetic Levitation Energy Harvester (MLEH) was designed and fabricated. The magnetic field distribution power generation performance of multiple cylindrical magnets were studied. full factorial design (FFD) L 20 (2 2 × 5) test carried out with the sliding magnet arrangement, coil arrangement wiring method as control factors, output target factor. Sweeping-frequency vibration tests railroad spectrum random conducted to verify capacity prototype. Experimental results show...

10.1177/1045389x211026383 article EN Journal of Intelligent Material Systems and Structures 2021-06-28
Coming Soon ...