Results 81 to 90 of about 121,818 (283)

Development of canopy vigour maps using UAV for site-specific management during vineyard spraying process [PDF]

, 2019
Site-specific management of crops represents an important improvement in terms of efficiency and efficacy of the different labours, and its implementation has experienced a large development in the last decades, especially for field crops.
Campos Tobajas, Javier, Gallart González-Palacio, Montserrat, García Ruiz, Francisco, Gil Moya, Emilio, Gras Moreu, Anna Maria, Llop Casamada, Jordi, Salcedo Cidoncha, Ramón   +6 more
core   +2 more sources

Engineering Extracellular Vesicle Production Through Magnetic Ion Channel Activation for Bone Regeneration

Advanced Healthcare Materials, EarlyView.
Magnetic Ion Channel Activation (MICA) enables remote stimulation of mechanosensitive ion channels using functionalised magnetic nanoparticles, enhancing extracellular vesicle (EV) biogenesis is pre‐osteoblasts. MICA desrived EVs exhibit typical nano‐vesicular characteristics but display superior pro‐osteogeneic activity, promoting mesenchymal stem ...
Afeesh Rajan Unnithan, Kenny Man, Kritika, Lee A. Gethings, Christopher J. Hughes, Alicia Keenan, Liam Heaney, Sophie C. Cox, Owen G. Davies, Alicia J. El Haj   +9 more
wiley   +1 more source

CHROM-Y: Illumination-Adaptive Robust Remote Photoplethysmography Through 2D Chrominance–Luminance Fusion and Convolutional Neural Networks

Signals
Remote photoplethysmography (rPPG) enables non-contact heart rate estimation but remains highly sensitive to illumination variation and dataset-dependent factors.
Mohammed Javidh, Ruchi Shah, Mohan Uma, Sethuramalingam Prabhu, Rajendran Beaulah Jeyavathana   +4 more
doaj   +1 more source

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

Advanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi, Naseeh Backer Kannanthodi, Alice Nicole Casling, Babar Ali, Samira Lakouraj Mansouri, Alessandro Giuseppe D'aloia, Hossein Cheraghi Bidsorkhi, Maria Sabrina Sarto   +7 more
wiley   +1 more source

Estimating Blood Pressure from Photoplethysmogram Signal and Demographic Features using Machine Learning Techniques

, 2020
Hypertension is a potentially unsafe health ailment, which can be indicated directly from the Blood pressure (BP). Hypertension always leads to other health complications. Continuous monitoring of BP is very important; however, cuff-based BP measurements
Chowdhury, Moajjem Hossain, Chowdhury, Muhammad E. H., Khandakar, Amith, Mahbub, Zaid B, Reaz, Mamun Bin Ibne, Shuzan, Md Nazmul Islam, Uddin, M. Monir   +6 more
core   +1 more source

Remote Heart Rate Estimation Using Consumer-Grade Cameras

, 2015
There are many ways in which the remote non-contact detection of the human heart rate might be useful. This is especially true if it can be done using inexpensive equipment such as consumer-grade cameras. Many studies and experiments have been performed in recent years to help reliably determine the heart rate from video footage of a person.
openaire   +3 more sources

Rapid Fabrication of Self‐Propelled and Steerable Magnetic Microcatheters for Precision Medicine

Advanced Materials, EarlyView.
A rapid Joule heating fabrication method for the production of self‐propelling, adaptive microcatheters, with tunable stiffness and integrated microfluidic channels is presented. Demonstrated through three microrobotic designs, including a steerable guiding catheter, an untethered wave‐crawling TubeBot, and a distal‐end propelled microcatheter, it was ...
Zhi Chen, Boris Rivkin, David Castellanos‐Robles, Ivan Soldatov, Lukas Beyer, Mariana Medina‐Sánchez   +5 more
wiley   +1 more source

Remote Measurement of Human Vital Signs Based on Joint-Range Adaptive EEMD

IEEE Access, 2020
Remote techniques for measuring human vital signs have attracted great interests due to the benefits shown in medical monitoring and military applications.
Li Sun, Shuaiming Huang, Yusheng Li, Chen Gu, Hao Pan, Hong Hong, Xiaohua Zhu   +6 more
doaj   +1 more source

Remote preconditioning by aortic constriction: affords cardioprotection as classical or other remote ischemic preconditioning? Role of iNOS [PDF]

, 2011
Dose remote preconditioning by aortic constriction (RPAC) affords cardioprotection similar to classical or other remote ischemic preconditioning stimulus?
Akash Sharma, Arshee Munajjam, Ashish Sharma, Ashish Tiwari, Ashok Sharma, B.P. Srinivasan, Bhawna Vaishnav, Divya Sharma, Kunal Kishore, Richa Sharma, Rita Kumari, Shyam Agarwal   +11 more
core   +1 more source

Electrically Readable Lateral Flow Assay Using Organic Transistors for Diagnostic Applications

Advanced Materials, EarlyView.
Electrolyte‐gated organic field‐effect transistors (EGOFETs) are integrated with lateral flow (LF) paper fluidics to create a reusable, portable, and low‐cost point‐of‐care (PoC) diagnostic test. The devices are validated for Human Immunoglobulin G detection, achieving high sensitivity (0.1 fm), selectivity, and reproducibility with rapid results in 20–
María Jesús Ortiz‐Aguayo, Carme Martínez‐Domingo, Diego Gutiérrez, Dean Kos, Marta Mas‐Torrent   +4 more
wiley   +1 more source