Results 41 to 50 of about 373,920 (397)

A narrative review of diaphragm ultrasound to predict weaning from mechanical ventilation: where are we and where are we heading?

The Ultrasound Journal, 2019
BackgroundThe use of ultrasound to visualize the diaphragm is well established. Over the last 15 years, certain indices of diaphragm function, namely diaphragm thickness, thickening fraction and excursion have been established for mechanically ventilated
P. Turton, Sondus Alaidarous, Ingeborg Welters   +2 more
semanticscholar   +1 more source

Resonant diaphragm pressure measurement system with ZnO on Si excitation [PDF]

, 1983
The principle of measuring pressure by means of a resonant diaphragm has been studied. An oscillator consisting of an integrated amplifier with a piezoelectrically driven diaphragm in its feedback loop has been built.
Boom, G., Hoen, K., Mulder, H., Smits, J.G., Tilmans, H.A.C., Vuuren, J. van   +5 more
core   +3 more sources

Diaphragm sniff ultrasound: Normal values, relationship with sniff nasal pressure and accuracy for predicting respiratory involvement in patients with neuromuscular disorders.

PLoS ONE, 2019
BackgroundIn patients with neuromuscular disorders, assessment of respiratory function relies on forced vital capacity (FVC) measurements. Providing complementary respiratory outcomes may be useful for clinical trials.
Abdallah Fayssoil, Lee S Nguyen, Adam Ogna, Tanya Stojkovic, Paris Meng, Dominique Mompoint, Robert Carlier, Helene Prigent, Bernard Clair, Anthony Behin, Pascal Laforet, Guillaume Bassez, Pascal Crenn, David Orlikowski, Djillali Annane, Bruno Eymard, Frederic Lofaso   +16 more
doaj   +1 more source

Consequences of group III/IV afferent feedback and respiratory muscle work on exercise tolerance in heart failure with reduced ejection fraction

Experimental Physiology, 2023
Exercise intolerance and exertional dyspnoea are the cardinal symptoms of heart failure with reduced ejection fraction (HFrEF). In HFrEF, abnormal autonomic and cardiopulmonary responses arising from locomotor muscle group III/IV afferent feedback is one
Joshua R. Smith, Jonathon W. Senefeld, Kathryn F. Larson, Michael J. Joyner   +3 more
doaj   +1 more source

Deformation investigation of electromagnetic diaphragm pump rubber diaphragm.

PLoS ONE
A diaphragm pump is a type of volumetric pump that has excellent sealing performance. An electromagnetic diaphragm pump is a kind of widely adopted diaphragm pump that has a simple structure, low power loss, and high cost performance.
Yu Liao, Heng Wang, Biao Chen, Yinshui Liu   +3 more
doaj   +1 more source

Electronic Control System for Optimized Resonance Operation of Dielectric Elastomer Pumps through Self‐Sensing

Advanced Engineering Materials, EarlyView.
A powerful electronic control system enables a dielectric elastomer pump to operate at resonance, matching conventional pump performance. Using self‐sensing to reconstruct load pressure dynamically, the adaptive control adjusts resonance frequency accordingly.
Matthias Baltes, Benedikt Holz, Daniel Bruch, Paul Motzki   +3 more
wiley   +1 more source

Hernioplastia diafragmática em cão com pericárdio bovino conservado em solução supersaturada de açúcar Diaphragmatic hernioplasty in dogs with bovine pericardium preserved in supersaturated sugar solution

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2003
Foram utilizados sete cães adultos, três machos e quatro fêmeas, sem raça definida, com pesos entre 10 e 22kg, para avaliação do processo cicatricial do músculo diafragma, na presença do implante de pericárdio bovino conservado em solução supersaturada ...
A. Mazzanti, A.G. Raiser, N.L. Pippi, A.S. Alves, R.X. Faria, M.M. Alievi, F.A. Braga, F.Z. Salbego   +7 more
doaj   +1 more source

Rapid disuse atrophy of diaphragm fibers in mechanically ventilated humans.

New England Journal of Medicine, 2008
BACKGROUND The combination of complete diaphragm inactivity and mechanical ventilation (for more than 18 hours) elicits disuse atrophy of myofibers in animals. We hypothesized that the same may also occur in the human diaphragm.
S. Levine, Taitan Nguyen, N. Taylor, M. Friscia, M. Budak, P. Rothenberg, Jianliang Zhu, R. Sachdeva, S. Sonnad, L. Kaiser, N. Rubinstein, S. Powers, J. Shrager   +12 more
semanticscholar   +1 more source

Flow compensating pressure regulator [PDF]

, 1978
An apparatus for regulating pressure of treatment fluid during ophthalmic procedures is described. Flow sensing and pressure regulating diaphragms are used to modulate a flow control valve.
Baehr, E. F.
core   +1 more source

The Frontiers of Aqueous Zinc–Iodine Batteries: A Comprehensive Review on Mechanisms, Optimization, and Industrial Prospects

Advanced Functional Materials, EarlyView.
This review provides an in‐depth understanding of all theoretical reaction mechanisms to date concerning zinc–iodine batteries. It revisits the inherent issues and solutions of zinc–iodine batteries from the perspective of industrial application. By integrating existing examples of energy storage applications, it identifies the challenges faced on the ...
Haokun Wen, Hanyu Wen, Ying Sun, Jiazhuo Li, Changlei Zhuang, Minghui Liu, Hui Li, Hua Fan, Bosi Yin, Siwen Zhang, Tianyi Ma   +10 more
wiley   +1 more source