Results 11 to 20 of about 49,451 (311)

Computational Study of Propeller–Wing Aerodynamic Interaction

Aerospace, 2018
Kestrel simulation tools are used to investigate the mutual interference between the propeller and wing of C130J aircraft. Only the wing, nacelles, and propeller geometries are considered.
Pooneh Aref, Mehdi Ghoreyshi, Adam Jirasek   +2 more
exaly   +3 more sources

Propeller Open-Water Test Method for Hybrid Contra Rotating Propeller

Journal of Marine Science and Engineering
The Hybrid Contra Rotating Propeller is a developing propulsion system that combines a conventional single-shaft propeller with a POD propeller to achieve high energy-saving performance through a Contra Rotating Propeller.
Tomoki Wakabayashi, Tokihiro Katsui
doaj   +2 more sources

Concurrent Improvement Observed in Patient-Reported Burden and Sensor-Collected Medication Use Among Patients Enrolled in a COPD Digital Health Program

Frontiers in Digital Health, 2021
Background: The COPD assessment test (CAT) is an 8-item questionnaire widely used in clinical practice to assess patient burden of disease. Digital health platforms that leverage electronic medication monitors (EMMs) are used to track the time and date ...
Leanne Kaye, Rahul Gondalia, Meredith A. Barrett, Melissa Williams, David A. Stempel   +4 more
doaj   +1 more source

Improve Ship Propeller Efficiency via Optimum Design of Propeller Boss Cap Fins

Energies, 2023
This paper aims to cost-effectively improve the energy efficiency of large vessels in shipping by the optimum design of propeller boss cap fins (PBCFs). First, a model propeller of the modern four-blade propeller in a Ro-Ro ship, with no boss cap fin in ...
Chungen Yin, Christian Kjaer Rosenvinge, Marcus Pless Sandland, Anders Ehlers, Keun Woo Shin   +4 more
doaj   +1 more source

Perancangan Propeler Self-Propelled Barge

Jurnal Teknik ITS, 2013
Makalah ini menyampaikan suatu penelitian tentang perancangan propeler yang optimal beserta pemilihan daya mesin yang efisien pada self-propelled barge dengan memperhitungkan besarnya nilai tahanan dari barge tersebut.
Billy Teguh kurniawan, Eko Budi Djatmiko
doaj   +1 more source

SOLID PROPELLANTS [PDF]

Rubber Chemistry and Technology, 2019
ABSTRACT Solid propellants are energetic materials used to launch and propel rockets and missiles. Although their history dates to the use of black powder more than two millennia ago, greater performance demands and the need for “insensitive munitions” that are resistant to accidental ignition have driven much research and development over the ...
Mason, B.P., Roland, C.M.
openaire   +3 more sources

Need for clarifying remote physiologic monitoring reimbursement during the COVID-19 pandemic: a respiratory disease case study

npj Digital Medicine, 2021
The use of remote monitoring and virtual visits has accelerated to support socially-distanced patient care during the COVID-19 pandemic. Despite the necessity of this expansion, ambiguity in coding is hindering adoption and patient access, most notably ...
Robert Jarrin, Meredith A. Barrett, Leanne Kaye, Sibel Sayiner, Amanda von Leer, Jennifer Johns, Larissa D’Andrea, Carlos Nunez, Andrey Ostrovsky   +8 more
doaj   +1 more source

THE PROPELLER AND THE FROG [PDF]

The Astrophysical Journal, 2010
"Propellers" in planetary rings are disturbances in ring material excited by moonlets that open only partial gaps. We describe a new type of co-orbital resonance that can explain the observed non-Keplerian motions of propellers. The resonance is between the moonlet underlying the propeller, and co-orbiting ring particles downstream of the moonlet where
Pan, Margaret, Chiang, Eugene
openaire   +2 more sources

The relationship between objective app engagement and medication adherence in asthma and COPD: a retrospective analysis

Scientific Reports, 2021
Digital health tools can promote disease self-management, but the association of smartphone app engagement and medication adherence is unclear. We assessed the relationship between objective smartphone app engagement and controller medication use in ...
Leanne Kaye, Rahul Gondalia, Alesha Thompson, David A. Stempel, Meredith A. Barrett   +4 more
doaj   +1 more source

Numerical Analysis of The Effects of Propeller High Thrust Distribution on Propulsion System Performance

Kapal, 2023
High ship propulsion performance is the main goal of designers, propeller is one component of the propulsion system that also affects the performance of the propulsion.
Irfan Eko Sandjaja, I Made Ariana, Erwandi Erwandi, Mahendra Indiaryanto, Muryadin Muryadin, Berlian Arswendo Adietya   +5 more
doaj   +1 more source