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 21 for “"Body frame"”.
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Body frame measures and perceptions of frame size and weight
… was to examine five methods of determining frame size. In addition, self perception of frame size and of desired weight was compared to two height-weight table recommendations. Pearson correlation coefficients were calculated to determine relationships between measurements used as criteria …
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Minimum Time/Minimum Fuel Control of an Axisymmetric Rigid Body
… solution to reorienting an axisymmetric rigid body using eigenaxis maneuvers. Any fixed desired attitude can be achieved by rotating the rigid body about its eigenaxis. While an eigenaxis is not a time-optimal maneuver, it will produce the shortest angular trajectory between the rigid bodys …
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Estimating Desirable Cattle Traits Using Latent Class and Mixed Logit Models: A Choice Modeling Application to the U.S. Grass-Fed Beef Industry
… heavy animals that were small-to-medium framed and easy to handle for grass-finishing. Black animals that were retained from their own calves were preferred. Relative to intact males, steers and heifers were preferred. Except for the estimated parameter for the weight attribute, the …
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Spacecraft Attitude Tracking Control
… The spacecraft is modeled as a rigid body with N axisymmetric wheels controlled by axial torques, and the kinematics are represented by Modified Rodriques Parameters. The trajectory, denoted the reference trajectory, is one generated by a virtual spacecraft that is identical to the …
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Probabilistic Estimation of State via Propagation of Error for a Collision Warning System
… deriving the error propagation in the vehicle's body frame. The paper present a scenario that demonstrates the CAPlugin capabilities and illustrates the FSE results, particularly for the flight path case.
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Dating Preferences among African-American Female College Students: Attitudes about Appearance, Trust, and Interracial Relationships
… such as light or dark skin preference and body-frame preference, as a significant factor for date selection. This finding is in contrast to existing literature. Attitude differences between young African-American female college students and the older African-American female college students …
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Robot self-configuration using a physical test harness
… of its wheels, and the location of sensors in body coordinates be provided to the system. Typically, this is accomplished through manual measurement. This thesis describes a method for automating the configuration of essential robot parameters - specifically the size of the wheel radii, the …
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On-orbit inspection of a rotating object using a moving observer
… operations. Its objective is to develop a framework and efficient algorithms to obtain a sufficiently detailed and accurate estimate of the target's structure and dynamics to serve as a platform to plan and execute the subsequent mission objectives. Specifically, subsequent phases will …
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Attitude Determination Using Imaging Lidar
… features it was possible to define a reference frame and associate it to the object. Observing the evolution of this body frame, the changes in orientation can be deduced in the direction cosine matrix form. It was desired to retrieve angular rates in Euler angle form but since the conversion …
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Body-relative navigation guidance using uncalibrated cameras
… cue towards the next graph node in the user's body frame. Our method makes little assumption about the environment except that it contains descriptive visual features. It requires no intrinsic or extrinsic camera calibration, and relies instead on a method that learns the correlation between …
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Uncertainty Quantification and Structure Discovery for Scalable Behavior Science
… and synthesis of relative part motion in the body frame. The Joint Posterior Tracker (JPT) is a comprehensive Bayesian treatment of the general multiobject tracking problem that quantities uncertainty in the motion of multiple objects. JPT uniquely performs asymptotically exact inference …
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Vision Based Guidance and Flight Control in Problems of Aerial Tracking
… the target's relative position in the follower's body frame via the target's apparent size, which is assumed to be constant, but otherwise unknown to the follower. The formulation of the relative dynamics in the inertial frame requires the knowledge of the follower's orientation angles, which are …
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Vision based estimation, localization, and mapping for autonomous vehicles
… algorithms with a robot-centric estimation framework primarily using monocular vision sensors. A primary contribution of this work is to use a robot-centric mapping framework concurrently with a world-centric localization method. We exploit the differential equation of motion of the …
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Dual-axis tilting quadrotor aircraft: Dynamic modelling and control of dual-axis tilting quadrotor aircraft
… to each propeller on a traditional quadrotor frame. Each lift propeller can be independently pitched or rolled relative to the body frame. Such an adaptation, to what is an otherwise well understood aircraft, produces an over-actuated control problem. Being first and foremost a control …
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Autonomous Space Surveillance for Arbitrary Domains
… and a dynamics modeling component for three-body relative motion.</p> <p>For the image processing component, resident space objects, (commonly referred to as RSOs) which are satellites or orbiting debris are identified in optical images. Two methods of identifying RSOs in a set of images are …
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Bayesian Approaches to Tracking, Sensor Fusion and Intent Prediction
… dynamic model and sensors in the object's body frame leads to novel state space models according to which efficient proposal kernels can be designed and implemented by the sequential Monte Carlo (SMC) methods. Also, sequential Markov chain Monte Carlo schemes are considered for the first …
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Reproduzierbarkeit der Risikoorgandosis bei der stereotaktischen Bestrahlung in Thorax, Abdomen und Becken
Die vorliegende Arbeit beschäftigte sich mit der Reproduzierbarkeit und möglichen relevanten Dosisänderungen in Bezug auf anliegende Risikoorgane bei der Körpersterotaxie in Lunge und Abdomen. Bei der Planung sowie vor jeder Bestrahlung wurden 56 Patienten in einem stereotaktischem Körperrahmen …
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Decentralized State Estimation using Robotic Sensor Networks
… computes the NBV in coordinates relative to the body-frame of the stereo rig, and then it moves in pose space to realize this view.</p><p>When an image is acquired, a switching signal changes the goal of pose control, giving rise to a stable hybrid system.</p><p>Experiments of on a real robot …
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INVESTIGATING THE METABOLIC PROFILE OF RUN-UP RACES AND THE MECHANICS OF WOBBLING VISCERAL MASS IN VERTICAL JUMPS.
… among: the fraction devolved to raise the body centre of mass: W ̇ STA.EXT = 80.4 ± 2.9%, the need to accelerate the limbs with respect to the body: W ̇ STA.INT = 4.5 ± 2.1%, and running in turns between flights of stairs: W ̇ TUR =15.1 ± 2.0%. At the individual level, experiments revealed …
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Duodenal and ileal digestibility of dietary nutrients and endogenous protein losses in pre- and post-weaning young dairy calves
… affect mean BW, ADG, milk and water intakes, and body frame dimensions. However, final BW (89.2 vs 94.6 kg) was lower and starter intake (0.06 vs 0.21 kg/d) tended to be decreased in cannulated calves when compared with control calves. No effects on health scores, rectal temperature, or the odds …
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