Results 1 to 10 of about 481,743 (269)

A wearable motion capture device able to detect dynamic motion of human limbs

Nature Communications, 2020
Current wearable motion capture technologies are unable to accurately detect dynamic motion of human limbs due to drift and instability problems. Here, the authors report a wearable motion capture device combining tri-axis velocity sensor and inertial ...
Shiqiang Liu, Junchang Zhang, Yuzhong Zhang, Rong Zhu   +3 more
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Self-calibration measurement and uncertainty evaluation of lens focal length based on Fabry-Perot Interferometer [PDF]

MATEC Web of Conferences
This paper proposes a self-calibration method for lens focal length measurement based on a Fabry-Pérot (F-P) etalon, and investigates uncertainty evaluation strategies in scenarios where measurement errors affect the results through indirect propagation.
Li Zelin, Shen Xiaoyan, Li Lei, Kong Wenxia   +3 more
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Study of a Microfluidic Chip Integrating Single Cell Trap and 3D Stable Rotation Manipulation

Micromachines, 2016
Single cell manipulation technology has been widely applied in biological fields, such as cell injection/enucleation, cell physiological measurement, and cell imaging.
Liang Huang, Long Tu, Xueyong Zeng, Lu Mi, Xuzhou Li, Wenhui Wang   +5 more
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A new method of continuous blood pressure monitoring using multichannel sensing signals on the wrist

Microsystems & Nanoengineering, 2023
Hypertension is a worldwide health problem and a primary risk factor for cardiovascular disease. Continuous monitoring of blood pressure has important clinical value for the early diagnosis and prevention of cardiovascular disease.
Liangqi Wang, Shuo Tian, Rong Zhu
doaj   +1 more source

Cascaded Dual-Soliton Pulse Stokes for Broadband Coherent Anti-Stokes Raman Spectroscopy

IEEE Photonics Journal, 2016
We report a spectrally and temporally cascaded dual-soliton Stokes excitation source for broadband coherent anti-Stokes Raman spectroscopy (CARS) based on a single Yb-doped fiber laser.
Kun Chen, Tao Wu, Tian Zhou, Haoyun Wei, Yan Li   +4 more
doaj   +1 more source

All-fiber high-speed image detection enabled by deep learning

Nature Communications, 2022
Here, the authors demonstrate high-speed imaging through multimode optical fibers by using the high intermodal dispersion to transform 2D spatial information into 1D temporal pulsed signal streams.
Zhoutian Liu, Lele Wang, Yuan Meng, Tiantian He, Sifeng He, Yousi Yang, Liuyue Wang, Jiading Tian, Dan Li, Ping Yan, Mali Gong, Qiang Liu, Qirong Xiao   +12 more
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Research on the Flow and Drag Reduction Characteristics of Surfaces with Biomimetic Fitting Structure [PDF]

Journal of Applied Fluid Mechanics
To reduce the fluid resistance on the surface of flow-through components and improve energy utilization efficiency, a biomimetic fitting structure model is constructed based on the ridge-like features of beluga skin.
C. Hu, Y. Gu, J. Zhang, Q. Qiu, H. Ding, D. Wu, J. Mou   +6 more
doaj   +1 more source

High-precision gas refractometer by comb-mode-resolved spectral interferometry

Scientific Reports, 2018
High-accuracy knowledge of gas refractivity is typically crucial for optical interferometry, precise optical systems, and calculable pressure standard development.
Lijun Yang, Yan Li, Haoyun Wei
doaj   +1 more source

Acoustic measurements and instrumentation [PDF]

The Journal of the Acoustical Society of America, 1976
A few selected topics will be discussed. Each had a major influence in setting a new trend. The discussion will include: the significance of Wente's condenser microphone in freeing acoustic measurements from the constraints of contemporary microphones; the effect of Maxfield and Harrison's paper on the analysis and synthesis of acoustic devices; the ...
openaire   +1 more source

ELECTRICAL MEASURING INSTRUMENTS. [PDF]

Minutes of the Proceedings of the Institution of Civil Engineers, 1892
n ...
openaire   +2 more sources