Results 11 to 20 of about 544,111 (317)

Weighing Cylinder Instrument with Controlled De-Icing for Ice Accretion Measurements [PDF]

, 2023
Ice collecting cylinders are widely used in atmospheric icing measurements to predict the amount of ice collected by various structures in an icing environment.
Mäkynen, Anssi J., Kaikkonen, Ville A., Molkoselkä, Eero O.   +2 more
core   +1 more source

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
doaj   +1 more source

Vibration analysis of stylus instrument for random surface measurement [PDF]

, 2010
This paper presents dynamic modeling and vibration analysis methodologies for investigating surface profile fidelity in stylus instruments, using a novel dynamic model that takes account of Hertzian contact stiffness between the stylus tip and surface ...
Zhang, D., Shirinzadeh, B., Chetwynd, D. G., Liu, X., Tian, Yanling   +4 more
core   +1 more source

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
doaj   +1 more source

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
doaj   +1 more source

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

Comparison of the performance of a microwave-based and an NMR-based biomaterial moisture measurement instrument [PDF]

, 2016
This article compares the performance of an NMR-based and a microwave-based moisture measurement instrument designed for biomaterials. The conventional moisture measurement method, Loss-on-Drying, serves as a reference measurement for both instruments ...
Heinonen, M. (Martti), Ojanen-Saloranta, M. (Maija), Mäkynen, Anssi, Ojanen-Saloranta, Maija, Mäkynen, Anssi Jaakko, Österberg, P. (Petri), Mäkynen, A. (Anssi), Ojanen-Saloranta, Maija Johanna; id_orcid, Heinonen, Martti, Österberg, Petri Juhani, Österberg, Petri   +10 more
core   +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
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

Dynamic modelling of the fidelity of random surface measurement by the stylus method [PDF]

, 2009
A numerical simulation has been used to systematically investigate the characteristics of a stylus surface profiling instrument. The model bridges together previously used concepts to incorporate both tip size and tip dynamics. The dynamics incorporate a
Zhang, D., Chetwynd, D. G., Liu, X., Tian, Yanling   +3 more
core   +1 more source