Results 81 to 90 of about 37,633 (216)

ErgoReport: A Holistic Posture Assessment Framework Based on Inertial Data and Deep Learning

Sensors
Awkward postures are a significant contributor to work-related musculoskeletal disorders (WRMSDs), which represent great social and economic burdens.
Diogo R. Martins, Sara M. Cerqueira, Ana Pombeiro, Alexandre Ferreira da Silva, Ana Maria A. C. Rocha, Cristina P. Santos   +5 more
doaj   +1 more source

The Casimir Effect from a Condensed Matter Perspective

, 2009
The Casimir effect, a key observable realization of vacuum fluctuations, is usually taught in graduate courses on quantum field theory. The growing importance of Casimir forces in microelectromechanical systems motivates this subject as a topic for ...
Casimir H. B. G., Dachev D. M., Fisher M. E., Itzykson C., L. Pálová, Landau L. D., Mahan G. D., P. Chandra, P. Coleman, Sachdev S., Thorne K.   +10 more
core   +1 more source

Micromachined High-Aspect-Ratio Parylene Spring and Its Application to Low-Frequency Accelerometers [PDF]

, 2006
A new microfabrication technology for high-aspect-ratio parylene structure has been developed for soft spring applications. Free-standing parylene beams with widths of 10–40 µm and aspect ratios of 10–20 have been successfully fabricated.
Suzuki, Yuji, Tai, Yu-Chong
core   +1 more source

Recent Advances in Programmable Metasurfaces and Meta‐Devices

Advanced Electronic Materials, EarlyView.
Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao, Chong He, Nan Wang, Liming Si, Weiren Zhu   +4 more
wiley   +1 more source

Miniaturized Clover-Shaped Patch Antenna With Improved Phase Center Variation and Circular Polarization for GNSS Positioning Applications

IEEE Open Journal of Antennas and Propagation
This paper presents a new miniaturized patch antenna design for GNSS applications with low phase center variation and high circular polarization purity.
Goncalo Dores, Hugo Dinis, Paulo M. Mendes   +2 more
doaj   +1 more source

Assessment of the Deformability and Velocity of Healthy and Artificially Impaired Red Blood Cells in Narrow Polydimethylsiloxane (PDMS) Microchannels

Micromachines, 2018
Malaria is one of the leading causes of death in underdeveloped regions. Thus, the development of rapid, efficient, and competitive diagnostic techniques is essential.
Liliana Vilas Boas, Vera Faustino, Rui Lima, João Mário Miranda, Graça Minas, Carla Sofia Veiga Fernandes, Susana Oliveira Catarino   +6 more
doaj   +1 more source

Hybrid Oxygen Enrichment and Preheating Strategy for Performance Recovery in Ultra‐Lean Micro–Trapped Vortex Combustors

Energy Science &Engineering, EarlyView.
Ultra‐lean H2 micro‐combustor performance is boosted through regulated O2 enrichment and inlet preheating. A 16‐case Taguchi study (ϕ = 0.3) shows: controlled enrichment and heating increase radiative output and efficiency, but excessive O2/temperature causes flashback.
Anouar Benzitouni, Abdelhakim Settar, Boudinar Naouam, Salaheddine Azzouz, Zakaria Mansouri   +4 more
wiley   +1 more source

Polyvinylidene Fluoride: Reaction Engineering and Applications

Macromolecular Reaction Engineering, EarlyView.
An updated review on polyvinylidene fluoride (PVDF) is presented in this work. Its properties, important areas of application and different methods of production are described, with particular focus on emulsion polymerization, covering the latest advances in formulations and modeling studies.
Burak Hanamirian, Giuseppe Storti, Mattia Sponchioni   +2 more
wiley   +1 more source

Unlocking the Secrets of Knee Joint Unloading: A Systematic Review and Biomechanical Study of the Invasive and Non-Invasive Methods and Their Influence on Knee Joint Loading

Rheumato
Background/Objectives: This review analyzes the effects of invasive and non-invasive methods of knee joint unloading on knee loading, employing a biomechanical model to evaluate their impact.
Nuno A. T. C. Fernandes, Ana Arieira, Betina Hinckel, Filipe Samuel Silva, Óscar Carvalho, Ana Leal   +5 more
doaj   +1 more source

Iris segmentation [PDF]

, 2018
The quality of eye image data become degraded particularly when the image is taken in the non-cooperative acquisition environment such as under visible wavelength illumination.
Ahmad, Asraful Syifaa’, Ahmar, Ansari Saleh, Asmuni,, Hishamudin, Hassan, Rohayanti, Hidayat, Rahmat, Kasim, Shahreen, Mat Raffei, Anis Farihan   +6 more
core   +1 more source