Results 61 to 70 of about 2,649 (198)

Gels for CO2 geo‐storage and conformance control: A systemic review of behavior and performance

Deep Underground Science and Engineering, Volume 4, Issue 4, Page 612-637, December 2025.
This review provides a systemic evaluation of potential sealants used in CO2 subsurface storage practices. Critical analyses of how external factors like CO2, pH, brine salinity and hardness, rock mineralogy, pressure, temperature, and injectivity could affect the performance of different sealants are provided. Abstract Carbon capture and storage (CCS)
Funsho Afolabi, Iskandar Dzulkarnain, Sunil Kwon, Dmitriy A. Martyushev, Jang H. Lee, Shiferaw R. Jufar, Fahd Al‐Akbari   +6 more
wiley   +1 more source

Estimating Carotid Pulse and Breathing Rate from Near-infrared Video of the Neck

, 2018
Objective: Non-contact physiological measurement is a growing research area that allows capturing vital signs such as heart rate (HR) and breathing rate (BR) comfortably and unobtrusively with remote devices.
Chen, Weixuan, Hernandez, Javier, Picard, Rosalind W.   +2 more
core   +1 more source

Women's experiences of participating in a randomised trial comparing alternative policies for timing of cord clamping at very preterm birth: a questionnaire study [PDF]

, 2019
BACKGROUND: The Cord Pilot Trial compared two alternative policies for cord-clamping at very preterm birth at eight UK tertiary maternity units: clamping after at least 2 min and immediate neonatal care with cord intact, or clamping within 20 s and ...
Armstrong-Buisseret, L., Ayers, S., Bradshaw, L., Duley, L., Mitchell, E., Sawyer, A.   +5 more
core   +2 more sources

Coronary artery disease detection based on photoplethysmography via Gramian angular field transformation and deep learning

Journal of Intelligent Medicine, Volume 2, Issue 4, Page 169-178, December 2025.
Abstract Sudden cardiac death (SCD) remains one of the leading causes of mortality worldwide, with coronary artery disease (CAD) as its predominant underlying condition. However, noninvasive and accessible screening approaches for CAD are still limited.
Zhaoying Li, Tong Wang, Xizi Song, Runnan He, Feng He   +4 more
wiley   +1 more source

Intelligent Remote Photoplethysmography-Based Methods for Heart Rate Estimation from Face Videos: A Survey

Informatics, 2022
Over the last few years, a rich amount of research has been conducted on remote vital sign monitoring of the human body. Remote photoplethysmography (rPPG) is a camera-based, unobtrusive technology that allows continuous monitoring of changes in vital ...
Smera Premkumar, Duraisamy Jude Hemanth
doaj   +1 more source

Cancellation for $(G,n)$-complexes and the Swan finiteness obstruction

, 2020
In previous work, we related homotopy types of $(G,n)$-complexes when $G$ has periodic cohomology to projective $\mathbb{Z} G$ modules representing the Swan finiteness obstruction.
Nicholson, Johnny
core  

Removing the anonymity axiom in assessing pro-poor growth [PDF]

, 2005
The recent focus on 'pro-poor growth' led also to an intense debate on how exactly to define and to measure pro-poor growth. However, all suggested measures, irrespective whether they use the absolute or the relative definition of pro-poor growth have in
Grimm, Michael
core  

The angular momentum of two collided rarefied preplanetesimals and the formation of binaries

, 2009
This paper studies the mean angular momentum associated with the collision of two celestial objects in the earliest stages of planet formation. Of primary concern is the scenario of two rarefied preplanetesimals (RPPs) in circular heliocentric orbits ...
Alexander, Astakhov, Benecchi, Canup, Cuzzi, Davis, Descamps, Doressoundiram, Durda, Eneev, Eneev, Funato, Giuli, Goldreich, Goldreich, Gorkavyi, Greenzweig, Ida, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Ipatov, Iwasaki, Johansen, Johansen, Kenyon, Kenyon, Lissauer, Lyra, Makalkin, Morbidelli, Myasnikov, Myasnikov, Nesvorny, Noll, Noll, Ohtsuki, Pechernikova, Petit, Pravec, Richardson, S. I. Ipatov, Safronov, Safronov, Safronov, Scheeres, Stern, Walsh, Walsh, Weidenschilling, Weidenschilling, Woolson, Ćuk   +55 more
core   +1 more source

Face Liveness Detection by rPPG Features and Contextual Patch-Based CNN [PDF]

Proceedings of the 2019 3rd International Conference on Biometric Engineering and Applications, 2019
Face anti-spoofing plays a vital role in security systems including face payment systems and face recognition systems. Previous studies showed that live faces and presentation attacks have significant differences in both remote photoplethysmography (rPPG) and texture information, we propose a generalized method exploiting both rPPG and texture features
Zhao Guoying, Li Xiaobai, Lin Bofan, Yu Zitong   +3 more
openaire   +2 more sources

Three‐ to 4‐year follow‐up of the reverse palatal pedicle graft for maxillary palatal recessions

Clinical Advances in Periodontics, Volume 15, Issue 3, Page 255-262, September 2025.
Abstract Background This study evaluates the long‐term stability and clinical outcomes of the reverse palatal pedicle graft (RPPG) technique in treating maxillary molar palatal recessions over a 3 to 4‐year follow‐up period. Methods Three patients with palatal recession defects on maxillary molars were treated using the RPPG technique.
Thomas T. Nguyen, David T. Wu, Bradley F. Weinstein   +2 more
wiley   +1 more source