نتایج جستجو برای: propeller
تعداد نتایج: 3766 فیلتر نتایج به سال:
In AE Aqr, magnetic elds transfer energy and angular momentum from a rapidly spinning white dwarf to material in the gas stream from the companion star, with the eeect of spinning down the white dwarf while inging the gas stream material out of the binary system. This magnetic propeller produces a host of observable signatures, chief among which are broad single-peaked aring emission lines with...
Abstract During the ground operation of aircraft, the interaction between the propulsor-induced flow field and the ground may lead to the generation of ground vortices. Utilizing numerical approaches, the source of vorticity entering ground vortices is investigated. The results show that the production of wall-parallel components of vorticity has a strong contribution from the wall-parallel com...
The Periodically Rotated Overlapping ParallEL Lines with Enhanced Reconstruction (PROPELLER) method for magnetic resonance imaging data acquisition and reconstruction has the highly desirable property of being able to correct for motion during the scan, making it especially useful for imaging pediatric or uncooperative patients and diffusion imaging. This method nominally supports a circular fi...
The emergence of resistance to artemisinin derivatives in Southeast Asia, manifested as delayed clearance of Plasmodium falciparum following treatment with artemisinins, is a major concern. Recently, the artemisinin resistance phenotype was attributed to mutations in portions of a P. falciparum gene (PF3D7_1343700) encoding kelch (K13) propeller domains, providing a molecular marker to monitor ...
Recommended Citation Chase, Nathan. "Simulations of the DARPA Suboff submarine including self-propulsion with the E1619 propeller. ii ACKNOWLEDGEMENTS I would like to thank my advisor, Dr. Pablo Carrica. His guidance and encouragement throughout my graduate career has been instrumental. I would also like to thank my other committee members, Dr. Fred Stern and Dr. Ching-Long Lin, for taking time...
BACKGROUND Post-burn axillary and elbow scar contracture is a challenging problem to the reconstructive surgeon owing to the wide range of abduction and extension that should be achieved, respectively, while treating either of the joint. The aim of this paper is to highlight the use of subcutaneous pedicle propeller flap for the management of post-burn axillary and elbow contractures. METHODO...
Hydrodynamic flow visualization techniques of scaled hull forms and propellers are typically limited to isolating certain operating conditions in a tow tank, circulation tunnel, or large maneuvering basin. Although cost effective, these tests provide a limited perspective on the interactions of the entire system. Full-scale testing, other the other hand, provides real world data but is costly. ...
BACKGROUND Emergence of artemisinin resistance in southeast Asia poses a serious threat to the global control of Plasmodium falciparum malaria. Discovery of the K13 marker has transformed approaches to the monitoring of artemisinin resistance, allowing introduction of molecular surveillance in remote areas through analysis of DNA. We aimed to assess the spread of artemisinin-resistant P falcipa...
The exponentially increasing amount of data in file systems has made it increasingly important for file systems to provide fast file-search services. The quality of the file-search services is significantly affected by the file-index overhead, the file-search responsiveness and the accuracy of search results. Unfortunately, the existing file-search solutions either are so poorly scalable that t...
Using a combination of high-performance ion chromatography analysis and kinetic studies, the pathway of myo-inositol hexakisphosphate dephosphorylation by the beta-propeller phytase of Shewanella oneidensis was established, which was then compared with that of Bacillus subtilis 168, Bacillus amyloliquefaciens ATCC 15841, and B. amyloliquefaciens 45 beta-propeller phytases. The data demonstrate ...
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