نتایج جستجو برای: axial rotation

تعداد نتایج: 117787  

This paper presents an element of a 2×2-element array antenna for Inmarsat BGAN/GPS applications. The element is an axial mode printed quadrifilar helical antenna that has been integrated with a compact feed network to provide sequential phase rotation for circular polarization (CP) radiation. The novel integrated lumped-element feed network is designed to provide a balanced RF power to the fou...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده علوم 1375

in chapter one we will describe definitions and preliminary results to provide the global context of our own results to be presented in detail in the subsequent chapters in chapter two we consider degree-one maps of the circle and we study their rotation set. our main result in this chapter says that if the map is topologically mixing then its rotation interval is nontrivial (that is, not reduc...

2005
Asko Parviainen Juha Pyrhönen

Thesis for the degree of Doctor of Science (Technology) to be presented with due permission for public examination and criticism in the auditorium 1382 at Lappeenranta ABSTRACT Asko Parviainen This thesis presents an alternative approach to the analytical design of surface-mounted axial-flux permanent-magnet machines. Emphasis has been placed on the design of axial-flux machines with a one-roto...

2016

Sagittal stability of the knee is believed to be of significant importance following a total knee arthroplasty. We examine three different knee designs at a minimum of twenty-four months postoperatively. Sagittal stability was measured at four degrees of flexion; 0°, 30°, 60° and 90° to examine the effect of design on mid-flexion stability. The knee designs included the rotating platform LCS de...

Journal: :Journal of Orthopaedic Surgery and Research 2008
Yeong-Fwu Lin Mei-Hwa Jan Da-Hon Lin Cheng-Kung Cheng

BACKGROUND The various measurements of patellar tilting failed to isolate patellar tilting from the confounding effect of its neighboring bone rotation (femoral and tibial rotation) in people sustaining patellofemoral pain (PFPS). Abnormal motions of the tibia and the femur are believed to have an effect on patellofemoral mechanics and therefore PFPS. The current work is to explore the various ...

2014
F. J. Scott

The dC$ign of reciprocating compressor cylinder heads consi.Us of thr= main tasks: 1) calculation methods to determine !he aclual SUCS$C$, 2) dctctmination of the factors of safety given thC$C stresscs, 3) validation of these SlrCSSC$ with strain gage dala. This paper will address the first of thC$C tasks, namely, the calculalion of cylinder head Stn=ssCS. A gcncnlized procedure calculating str...

Journal: :Journal of dental research 1976
A R Burdi S M Garn W Babler

In an earlier radiographic study of dental development in the third-trimester fetus, considerable variability was obsersed in the degree of rotation of the deciduous lateral incisors (VAN DER LINDEN, MACNAMARA and Buxi, J Dent Res 51: 71, 1972) Accordingly, we became interestedl in the extent of lateral-incisor rotation in still younger specimens, the age at onset of lateralincisor rotation, an...

1999
Steven T. Wereley Richard M. Lueptow

The flow in the gap between an inner rotating cylinder concentric with an outer stationary cylinder with an imposed pressure-driven axial flow was studied experimentally using particle image velocimetry ~PIV! in a meridional plane of the annulus. The radius ratio was h50.83 and the aspect ratio was G547. Velocity vector fields for nonwavy toroidal and helical vortices show the axial flow windin...

2016
Youichi Teratake Chisa Kuga Yuta Hasegawa Yoshiharu Sato Masayasu Kitahashi Lisa Fujimura Haruko Watanabe-Takano Akemi Sakamoto Masafumi Arima Takeshi Tokuhisa Masahiko Hatano

The Nczf gene has been identified as one of Ncx target genes and encodes a novel KRAB zinc-finger protein, which functions as a sequence specific transcriptional repressor. In order to elucidate Nczf functions, we generated Nczf knockout (Nczf-/-) mice. Nczf-/- mice died around embryonic day 8.5 (E8.5) with small body size and impairment of axial rotation. Histopathological analysis revealed th...

Journal: :Proceedings. Mathematical, physical, and engineering sciences 2016
S Derebail Muralidhar B Pier J F Scott R Govindarajan

This paper concerns steady, high-Reynolds-number flow around a semi-infinite, rotating cylinder placed in an axial stream and uses boundary-layer type of equations which apply even when the boundary-layer thickness is comparable to the cylinder radius, as indeed it is at large enough downstream distances. At large rotation rates, it is found that a wall jet appears over a certain range of downs...

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