Results 71 to 80 of about 2,502,268 (205)

Non-Contact Oxygen Saturation Estimation Using Deep Learning Ensemble Models and Bayesian Optimization

Technologies
Monitoring Peripheral Oxygen Saturation (SpO2) is an important vital sign both in Intensive Care Units (ICUs), during surgery and convalescence, and as part of remote medical consultations after of the COVID-19 pandemic.
Andrés Escobedo-Gordillo, Jorge Brieva, Ernesto Moya-Albor   +2 more
doaj   +1 more source

Maximizing the Energy Output of Soft Electrohydraulic Generators

Advanced Science, EarlyView.
Many energy resources cannot be viably harvested with electromagnetic generators. This article evaluates the potential of soft electrohydraulic generators as an alternative approach for energy capture. An analytical model charts their operational limits and a rigorous experimental study results in new performance benchmarks with maximum specific energy
Sophie Kirkman, Ingemar Schmidt, Lawrence T. Smith, Steven L. Zhang, Shane K. Mitchell, Soo Jin Adrian Koh, Philipp Rothemund, Christoph Keplinger   +7 more
wiley   +1 more source

Review on the development of truly portable and in-situ capillary electrophoresis systems

, 2013
Capillary electrophoresis (CE) is a technique which uses an electric field to separate a mixed sample into its constituents. Portable CE systems enable this powerful analysis technique to be used in the field.
Cranny, Andy, Green, Nicolas G, Lewis, Adam, Wharton, Julian A., Stokes, Keith R., Harris, Nick, Wood, R.J.K.   +6 more
core   +1 more source

Feasibility of Privacy-Preserving LiDAR-Based Continuous Gait and Activity Monitoring in Three People with Multiple Sclerosis: A Technical Proof-of-Concept Case Study

Sensors
Multiple sclerosis (MS) is a chronic central nervous system disease with heterogeneous symptoms, including gait disturbances and motor fatigue, affecting daily functioning and quality of life.
Michael Single, Sara Mollà-Casanova, Lena C. Bruhin, Vasileios Skaramagkas, Stephan M. Gerber, Andrew Chan, Tobias Nef, Iris-Katharina Penner   +7 more
doaj   +1 more source

Large‐Area Noise‐Resilient Multiplexing Triboelectric Biomechanical Sensing on Clothing for High‐Precision Full‐Body Motion Capture in Wearables

Advanced Science, EarlyView.
A large‐area, noise‐resilient multiplexed triboelectric sensing garment based on a multilayer shielded architecture and SnS2 nanoflower‐engineered hybrid materials enables interference‐suppressed, high‐fidelity full‐body motion tracking, achieving 0.13% signal misrecognition, 57 dB electromagnetic noise attenuation, and >1.5 N threshold force, while ...
Beibei Shao, Ming‐Han Lu, Wei‐Chen Peng, Wei‐Chun Yang, Yi‐Ting Chen, Jiun‐Wei Fong, Tzu‐Ching Lu, Tai‐Chen Wu, Zhi‐Xian Yan, Kai‐Yuan Hsiao, Jiann‐Yeu Chen, Ming‐Yen Lu, Heng‐Jui Liu, Ruiyuan Liu, Ying‐Chih Lai   +14 more
wiley   +1 more source

Novel Principle of Contactless Gauge Block Calibration

Sensors, 2012
In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry.
Ondřej Číp, Josef Lazar, Martin Čížek, Břetislav Mikel, Zdeněk Buchta, Šimon Řeřucha   +5 more
doaj   +1 more source

Interfacial Salinity–Transport Matching in 3D Solar Evaporators: A Framework for Brine‐Stable Solar Interfacial Evaporation

Advanced Science, EarlyView.
A transport‐matching framework is developed to evaluate brine‐stable 3D solar evaporators beyond evaporation rate alone. Using PVA/GNP porous evaporators as a model system, the study shows that stable brine evaporation requires balanced heat generation, liquid replenishment, salt redistribution, and vapor removal rather than maximum dry temperature or ...
Mohammad Sajad Sorayani Bafqi, Arun Prakash Aranga Raju, Omid Doustdar, Reza Nekouie Esfahani, Ali Sadaghiani   +4 more
wiley   +1 more source

Contactless and continuous monitoring of respiratory rate in a hospital ward: a clinical validation study

Frontiers in Physiology
IntroductionContinuous monitoring of respiratory rate in hospital wards can provide early detection of clinical deterioration, thereby reducing mortality, reducing transfers to intensive care units, and reducing the hospital length of stay.
Ståle Toften, Jonas T. Kjellstadli, Jørn Kværness, Line Pedersen, Line Pedersen, Lars E. Laugsand, Lars E. Laugsand, Ole K. F. Thu, Ole K. F. Thu   +8 more
doaj   +1 more source

Self‐Sustaining Sensing Systems: Integration Strategies and Signal–Power Matching in Energy‐Harvesting Electronics

Advanced Science, EarlyView.
Energy‐harvesting‐integrated sensors couple ambient energy conversion with sensing, processing, and wireless communication. This review organizes recent progress through integration architectures and operating principles, revisiting co‐packaged, monolithic, and co‐functional designs together with always‐on, event‐driven, and multi‐modal sensing modes ...
Taehyun Park, Ki‐Yoon Park, Yeonho Choi, Dong‐Myeong Shin, Hong‐Joon Yoon, Hocheon Yoo   +5 more
wiley   +1 more source

Contactless assessment of heart rate in neonates within a clinical environment using imaging photoplethysmography

Frontiers in Pediatrics
IntroductionIn neonatology, the accurate determination of vital parameters plays a pivotal role in monitoring critically ill newborns and premature infants, as well as aiding in disease diagnosis.
Libor Svoboda, Jan Sperrhake, Maria Nisser, Luca Taphorn, Hans Proquitté   +4 more
doaj   +1 more source