Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1715 for “"RADIUS"”.
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Radius
This paper includes a 62-page book of original poems, 19 pages of which are visual poetry, and a 29-page preface which discusses visual poetry.
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Covering problem with minimum radius enclosing circle
… and the circle enclosing them with minimum radius. The center of this circle serves as the communication hub location, minimizing the distance between demand points and facilities subject to customer demand. We develop a nonconvex-nonlinear optimization model and propose a quadratic …
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Squat exercise biomechanics during short-radius centrifugation
Artificial gravity (AG) created by short-radius centrifugation is a promising countermeasure to the physiological de-conditioning that results from long-duration spaceflight. However, as on Earth, gravity alone does not ensure fitness. We will need to supplement passive exposure to AG with physical …
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Efficient fixed-radius near neighbors for machine learning
… of an efficient and parallel fixed-radius near neighbors program (FRNN). FRNN is a core component in a new type of machine learning model, object oriented deep learning (OODL), serving as a replacement for CNNs with goals of invariance, equivariance, interpretability, and …
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Exercise protocols during short-radius centrifugation for artificial gravity
… g-gradient and high g-levels during short-radius centrifugation, and (2) to quantify the fitness benefits of an eight-week exercise program on a short-radius centrifuge. In the first experiment, we utilized a tilting short-radius centrifuge to investigate heart rate, blood pressure, and …
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Development of a Novel Zero-Turn-Radius Autonomous Vehicle
… describes the development of a new zero-turn-radius (ZTR) differentially driven robotic vehicle hereinafter referred to as NEVEL. The primary objective of this work was to develop a device that could be used as a test-bed for continued autonomous vehicle research at Virginia Tech while meeting …
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Characterizing the Spectral Radius of a Sequence of Adjacency Matrices
… on networks and the significance of the spectral radius in their analysis. We look to establish properties of the spectral radius that would better inform how an epidemic might spread over such a network. We construct a specific transformation of networks that describe a transition from a star …
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BIOMECHANICS OF THE DISTAL RADIOULNAR JOINT WITH A MALALIGNED DISTAL RADIUS
Distal radius fractures are the most common fractures in humans and frequently have suboptimal outcomes, fostering considerable discussion with regard to treatment. This body of work was based on the postulate that quantifying the biomechanics, specifically the kinematics and loading of the distal …
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Jet radius and rapidity dependence of azimuthal correlations in photoproduced dijets
… the direction of the photon (0nXn). For jets of radius 0.4, ⟨cos(2φ)⟩ was found to be positive and independent of the neutron topology, suggesting a common underlying mechanism for generating angular asymmetries in both photonuclear and photodiffractive enhanced events. The data were compared to …
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A High Precision Measurement of the Proton Charge Radius at JLab
… methods to determine the proton charge radius ($r_{p}$). In 2010, a new method using the muonic hydrogen ($\mu$H)\footnote{A muonic hydrogen has its orbiting electron replaced by a muon.} spectroscopy reported a $r_{p}$ result that was nearly ten times more precise but significantly …
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Wave propagation in pipes of slowly-varying radius with compressible flow
… a trapped mode in a hard-walled pipe of varying radius conveying fluid. For the derived leading order propagating mode solution, its amplitude becomes singular at transition points $X_{t}$ and $X_{t'}$ where $X_{t} > 0$ and $X_{t'} < 0$ and thus is unable to propagate past these points. Because …
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Comparison of Methods for Estimating Instantaneous Turn Radius of Ackermann Steering Vehicles
<p>The instantaneous turn radius of an Ackermann steering vehicle is the distance to a point in space about which the vehicle will travel in an arc during a turn. There are at least six ways to estimate instantaneous turn radius and each method uses different inputs and has distinct advantages and …
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Cooperative relaying in cellular networks for improving receiver diversity and cell radius
… certain reliability and also extend the cell radius by effectively positioning the relay. First, we investigate the famous 3-node relay assisted cellular system model and study the receiver diversity combining results by changing the relay positions with a relay forwarding the signal using the …
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An efficient and computationally attractive localization algorithm under large equal radius scenario
… localization. We introduce the Large Equal Radius (LER) scenario based on satellite geolocation problem. Here we propose a computationally friendly and efficient estimator based on TDOA measurements under LER scenario. The performance of the proposed estimator is analyzed, and it's shown …
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Fracture of the distal radius - outcome, primary surgery and treatment of malunion
A consensus protocol for treatment of distal radius fractures (DRF) has been developed to aid clinicians in treatment decision making. The protocol was evaluated in Paper I using a validated subjective outcome instrument, DASH in 518 consecutive patients. A good final subjective result was achieved …
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Design and validation of a compact radius centrifuge artificial gravity test platform
… exposure to artificial gravity on a short radius centrifuge (SRC) with exercise is a promising, comprehensive countermeasure to the cardiovascular and musculoskeletal deconditioning that occurs as a result of prolonged exposure to microgravity. To date, the study of artificial gravity has …
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Torque sensitivity as a function of radius and load on hand-operated knobs
Call number: LD2668 .T4 1967 W651
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Torque sensitivity as a function of radius and load on hand-operated knobs
Call number: LD2668 .T4 1967 W651
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Measurement Of Neutron Radius In Lead By Parity Violating Scattering Flash ADC DAQ
… which is designed to measure the neutron radius in <sup>208</sup>Pb. PREx is performed in hall A of Thomas Jefferson National Accelerator Facility from March 19th to June 21st. Longitudionally polarized electrons at energy 1 GeV scattered at and agnle of θ<em>l<sub>ab</sub></em> = 5.8° …
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Anaerobic performance in ice hockey : the effect of skate blade radius of hollow
… was to investigate the effect of skate blade radius of hollow (ROH) on anaerobic performance, specifically during the acceleration and stopping phases of an on-ice skating test. Fifteen, male Junior B hockey players (mean age 19 y ± 1.46) were recruited to participate. On-icc testing required …
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