منابع مشابه
Electron Diffraction Based Tilt Angle Measurements in Electron Tomography
Electron tomography can provide three dimensional (3D) visualization of nanoscale objects in a transmission electron microscope (TEM) from a tilt series of projected images. The accuracy of the 3D reconstruction depends on quality of input parameters, including accurate alignment in real space and accuracy of tilt and azimuth angle measurements. Here we present an electron diffraction-based in-...
متن کاملHaemodynamic effects of increasing angle of head up tilt.
OBJECTIVE To investigate the haemodynamic effects of varying the angle of head up tilt. METHODS 20 healthy subjects (12 female, eight male; mean (SD) age 33.6 (8.4) years) underwent head up tilt for five minutes to each of four angles of tilt in random order, with a five minute rest period at the horizontal between each angle. Forearm blood flow was measured using intermittent occlusion mercu...
متن کاملFlexion Angle Measurements with an Optical Fiber Goniometer Bilro,
A method to introduce optical fibers technology to physics and engineering students is presented. As the attenuation in an optical fiber depends on several factors including macro bending, an optical fiber angle sensor has been developed. The method used to increase the sensibility of the sensor consisted on side polishing the optical fiber. In the near future is expected to integrate this sens...
متن کاملLarge Tilt Angle Lorentz Force Actuated Micro-Mirror with 3 DOF for Optical Applications
A versatile MEMS micro-mirror for optical platforms is presented, that operates using Lorentz force for actuation, resulting in low voltage operation. While maintaining below 20 mA drive current, this mirror has a tilting angle of over 50° and 20° around two diagonal axes and a linear motion of 1.5 mm in vertical axis. Compared to other works, it has larger angle of rotation and additional out ...
متن کاملMulti-Observations Initial Orbit Determination based on Angle-Only Measurements
A new approach with the ability to use the multiple observations based on the least square approach has been proposed for initial orbit determination. This approach considers the Earth’s Oblateness by using the developed Lagrange coefficients. The efficiency of the proposed method has been tested in two scenarios. The first scenario is to use the simulated and the second one is to utilize the r...
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ژورنال
عنوان ژورنال: Journal of Research of the National Institute of Standards and Technology
سال: 1994
ISSN: 1044-677X
DOI: 10.6028/jres.099.057