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Compressed sensing based cone-beam computed tomography reconstruction with a first-order method
Department of Radiation Oncology Stanford University Stanford California 94305
2015/8/7
This article considers the problem of reconstructing cone-beam computed tomography (CBCT) images from a set of undersampled and potentially noisy projection measurements. The authors cast the reconstr...
Carbohydrate use and reduction in number of balance beam falls:implications for mental and physical fatigue
Maltodextrin supplementation Artistic gymnastics Mental fatigue
2015/7/27
Artistic Gymnastics is a sport where athletes are frequently fatigued. One element that might influence this aspect is carbohydrate, an important energy substrate for the muscles and the CNS. Our goal...
Compressed Sensing Based Cone-Beam Computed Tomography Reconstruction with a First-Order Method
cone-beam computed tomography compressed sensing weighted least-squares
2015/7/9
This article considers the problem of reconstructing cone-beam computed tomography (CBCT) images from a set of undersampled and potentially noisy projection measurements. The authors cast the reconstr...
On the Retrieval of the Beam Transverse Wind Velocity Using Angles of Arrival from Spatially Separated Light Sources
Atmospheric Turbulence Optical Wave Propagation Wind Estimation Angle-of-Arrival Time-Delay-to-Peak Slope-at-Zero-Lag
2014/12/8
For optical propagation through the turbulent atmosphere, the angle of arrival (AOA) cross-correlation function obtained from two spatially separated light sources carries information regarding the tr...
BEAM STEERING CONTROL SYSTEM FOR LOW-COST PHASED ARRAY WEATHER RADARS: DESIGN AND CALIBRATION TECHNIQUES
Phased Arrays Electronically scanned antennas Radars T/R modules Phased array calibration Radar Calibration
2014/11/7
Phase array antennas are a promising technology for weather surveillance radars. Their fast beam steering capability offer the potential of improving weather observations and extending warning lead ti...
The Effect of Extrafascial Hysterectomy After Completion of External Beam Radiotherapy for Treatment of Locally Advanced Stages (IIB-III) of Cervical Cancer
Uterine Cervical Neoplasms Lymphatic Irradiation Hysterectomy
2015/10/9
Background:: Worldwide, cervical cancer is one of the most challenging gynecologic cancers in treatment.
The Efficiency of Reduced Beam Section Connections for Reducing Residual Drifts in Moment Resisting Frames
Residual Deformations Reduced Beam Section Connection P-Δ Effects
2013/1/31
In most framed structures anticipated deformations in accordance with current codes fall into acceptable limit states, whereas they go through substantial residual deformations in the aftermath of sev...
I-beam Crack Identification Based on Study of Local Flexibility due to Crack
crack identification I-beam local flexibility
2011/8/5
Local flexibility of crack plays an important role in crack identification of structures. Analytical methods on local flexibility in a cracked beam with simple geometric crossing sections, such as rec...
Vibration Control of a Composite Beam Using Self-sensing Semi-active Approach
piezoelectric elements synchronized switch damping semi-active control
2011/8/3
Structural vibration control was an active research area for the past twenty years because of their potential applications in aerospace structures, civil structures, naval structures, etc. Semi-active...
Antenna systems with beam forming and beam steering capabilities for HF skywave radars
HF radars HF communication Skywaves ionospheric reflections Earth- ionosphere waveguide planar arrays
2010/10/12
Radiation characteristics of linearly phased, periodic, planar dipole arrays, which can be used as transmitting/receiving antenna systems for HF skywave radars, are investigated. Rectangular, triangul...
Transverse Vibration of a Beam Under Constant Stress
Transverse vibration Dimensionless natural frequency Isotropic material
2009/10/14
In this study, transverse vibrations of a beam made of two materials and with a variable cross section
were investigated. Dimensionless natural frequency values of the system were found by the Raylei...
An Experimental Study on the Effect of Steel Fiber Reinforced Concrete on the Behavior of the Exterior Beam-Column Joints Subjected to Reversal Cyclic Loading
Beam-column joint Steel fiber reinforced concrete Ductile behavior
2009/10/12
For the ductile behavior of beam-column joints, closely spaced transverse reinforcement is required by earthquake codes. However, placement of this reinforcement in joints always causes some dicultie...
Active Control of Residual Vibrations of a Cantilever Smart Beam
Active vibration control Finite element method Moving load Piezoelectricity
2009/10/9
The aim of this study is to control the residual vibrations of a clamped-free beam subjected to a moving load. The dynamic response of the beam is calculated by using the finite element method in orde...
Cyclic behaviour of plate-to-beam welded connections
Plate-beam steel strength welds cyclic
2009/9/30
Modern codes contain application rules based essentially on monotonic tests that allow the design of welded connections between a profile with H section and a plate or a beam flange without transverse...
A General Formula for Fan-Beam Lambda Tomography
General Formula Fan-Beam Lambda Tomography
2009/9/8
Lambda tomography (LT) is to reconstruct a gradient-like image of an object only from local projection data. It is potentially an important technology for medical X-ray computed tomography (CT) at a r...