Results 231 to 240 of about 151,013 (284)

Portable Radar for Noncontact Heart Rate Monitoring and Estrus Detection in Dairy Cows

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
This study introduces a portable radar system for real‐time monitoring of respiratory and heart rates in dairy cows. It uses millimeter‐wave Frequency Modulated Continuous Wave (FMCW) radar to perform noncontact physiological sensing, reducing behavioral disturbance. The radar system's design prioritizes portability, cost‐effectiveness, and robustness,
Yingxiu Li, Ranran Wang, Fuyang Tian, Yudao Li, Zhuolin Wang, Yuxin Yu, Liping Ma, Xin Lu   +7 more
wiley   +1 more source

High power ultrafast phase-locked laser at 2060 nm from a doubly resonant optical parametric oscillator. [PDF]

Sci Rep
Rao H, Mevert R, Geesmann FJ, Zuber D, Demircan A, Babushkin I, Morgner U.   +6 more
europepmc   +1 more source

Recent advances of non‐invasive sensors for smart wearable respiratory monitoring

VIEW, EarlyView.
Respiration contains rich physiological and pathological information, making it one of the most fundamental and continuous vital signs. Respiration monitoring is a non‐invasive and simple, but incredibly powerful, tool for assessing health, managing disease, and tracking fitness.
Jianhui Chen, Baoxiang Yang, Chang Peng, Bao Yang, Licheng Zhou, Zhenyu Jiang, Zejia Liu, Yiping Liu, Liqun Tang   +8 more
wiley   +1 more source

A 209 ps Shutter-Time CMOS Image Sensor for Ultra-Fast Diagnosis. [PDF]

Sensors (Basel)
Cai H, Xie Z, Ma Y, Xiang L.
europepmc   +1 more source

SMILE: Extraction‐free submicron‐resolution mapping of lipid chain length and unsaturation by stimulated Raman imaging

VIEW, EarlyView.
In this work, we develop submicron‐resolution mapping of intracellular lipid elements (SMILE) as an extraction‐free vibrational spectroscopic imaging platform based on hyperspectral stimulated Raman scattering microscopy with a spectral analysis pipeline for pixel‐resolved lipid profiling.
Yihui Zhou, Xiangjie Huang, Xingxin Liu, Ling Zhang, Jie Huang, Jing Zhao, Yongqing Zhang, Jin Zhang, Yanqing Gong, Delong Zhang, Hyeon Jeong Lee   +10 more
wiley   +1 more source

A Short-Pulse Indirect ToF Imager Using Six-Tap Pixel with a Backside-Illuminated Structure for High-Speed Demodulation. [PDF]

Sensors (Basel)
Okuyama T, Sugimura H, Alcade G, Ageishi S, Kwen HW, Lioe X, Mars K, Yasutomi K, Kagawa K, Kawahito S.   +9 more
europepmc   +1 more source

Multispectral optoelectronic sensor to detect peripheral blood pulsatile variations with equivalent performance in light, medium and dark skin tones. [PDF]

Sci Rep
Hu S, Elsahar Y, Hou J, Dwyer VM.
europepmc   +1 more source

Epitaxial Graphene/n-Si Photodiode with Ultralow Dark Current and High Responsivity. [PDF]

Nanomaterials (Basel)
Yin L, Wang X, Feng S.
europepmc   +1 more source

A graphene-on-silicon photodetector for low penetrating radiation. [PDF]

Sci Rep
Moffat N, Oton JAS, Rius G, Cabruja E, Pellegrini G.   +4 more
europepmc   +1 more source

Electrochemical Point-of-Care Test for Assessing Serum Paracetamol Concentration: Comparison With Traditional Methods and Detection of Concomitant Drugs. [PDF]

Basic Clin Pharmacol Toxicol
Kujala JK, Lohela TJ, Wester N, Verrinder E, Pelander A, Lamberg T, Mikladal B, Kalso EA, Lilius TO.   +8 more
europepmc   +1 more source