نتایج جستجو برای: deflection

تعداد نتایج: 9834  

Journal: :Electrophoresis 2010
Benjamin G Hawkins Brian J Kirby

We simulate electrothermally induced flow in polymeric, insulator-based dielectrophoresis (iDEP) systems with DC-offset, AC electric fields at finite thermal Péclet number, and we identify key regimes where electrothermal (ET) effects enhance particle deflection and trapping. We study a single, two-dimensional constriction in channel depth with parametric variations in electric field, channel g...

Journal: :Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance 2003
Frank G Shellock Jean A Tkach Paul M Ruggieri Thomas J Masaryk

PURPOSE To evaluate magnet-related translational attraction for cardiac pacemakers, ICDs, and an insertable loop recorder in association with exposure to "long-bore" and "short-bore" 1.5- and 3.0-Tesla MR systems. MATERIALS AND METHODS Fourteen cardiac pacemakers, four ICDs, and one insertable loop recorder were evaluated for translational attraction using deflection angle tests performed at ...

2008
Matthew Vossler Tarunraj Singh

The focus of this paper is on the design of time optimal control profiles for flexible structures subject to deflection constraints. The benchmark floating oscillator is used to illustrate the variation in the structure of the control profile as a function of permissible deflection. The transition from a 5 switch bang-bang to a 7 switch bang-bang to finally, a 7 switch profile which includes no...

2008
E. Jasiūnienė

Objective of this study was to investigate the influence of the transducer positioning angle deviation from its supposed position on the 3D reflections from a triangle reflector. For that an acoustic computer model using the Huygens approach, which enables calculation of the signals reflected by the triangles in 3D space was used. Modelling was performed at different deflection angles of triang...

2013
JINGYUE WANG HAOTIAN WANG LIXIN GUO

A half-car model with four DOF was established to simulate the system. On the basis of this model, Selfadapt Parameters Fuzzy-PID control method of the active suspension system is described. In such a model, vehicle speed, vehicle body vertical acceleration, suspension dynamic deflection, the body vertical acceleration and suspension dynamic deflection integrated feedback were used respectively...

2007
Elena T. Herruzo Ricardo Garcia

We discuss the dynamics of an amplitude modulation atomic force microscope in different environments such as water and air. Experiments, analytical expressions, and numerical simulations show that the resonance curves depend on the excitation method used to drive the cantilever, either mechanical or magnetic. This dependence is magnified for small force constants and quality factors, i.e., belo...

2001
Jon M. Selig X. Ding

In this article we derive the deflection equation of a simple beam using screw theory. The effects of tension, torsion and bending of the beam can be unified into a single equation. We begin by looking at the compliance matrix for small elements of the beam. This is loosely based on work by von Mises in the 1920s. We reproduce von Mises results for the compliance matrix of the entire beam by in...

2005
Michael Robertson William Singhose

Command signals that can move a flexible system without residual vibration and also limit the transient deflection are very useful, but difficult to create. Historically, these types of commands have been generated via numerical optimization. A method for analytically creating deflection-limiting commands is described and evaluated. Characteristics of the command profile are presented as a func...

1999
W. E. Featherstone

This paper reviews the deflection of the vertical and its use and abuse in geodetic surveying. ‘Importantly, the deflection of the vertical in Australia will change by around 6” upon the implementation of the Geocentric Datum of Australia (GDA94). Therefore, for some applications, the deflection of the vertical may no longer simply be neglected in survey computations and adjustments. With the r...

Journal: :IEEE Trans. Communications 1995
Fabrizio Forghieri Alberto Bononi Paul R. Prucnal

The steady state behavior of regular two-connected multihoP networks in uniform traffic under hot-Pobto and a simple single-buffer deflection routing technique is analyzed for very high bit rate optical applications. Manhattan Street Network and ShuffleNet are compared in terms of throughput, delay, deflection probability, and hop distribution both analytically and network traffic. In a deflect...

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