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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 282 for “"jumping"”.
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Coalescence-induced nanodroplet jumping
Made available in DSpace on 2016-07-07T20:35:12Z (GMT). No. of bitstreams: 2 CHA-THESIS-2016.pdf: 2224018 bytes, checksum: 497c21f5ec14cea688f8b206e81b1b44 (MD5) LICENSE.txt: 4210 bytes, checksum: b076c2ca76ed752c030fdb8c95f208df (MD5) Previous issue date: 2016-04-28
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Effects of Stretching on Jumping Performance
Stretching has been a part of warm-up for a very long time. Some recent research has shown that stretching could possibly hinder performance and others have shown it enhances performance. The purpose of this study was to examine whether stretching has an effect on vertical jump, and if so, how long …
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Enhanced coalescence-induced jumping droplet departure
… length (~ 1mm) via coalescence induced droplet jumping. Jumping-droplet condensation has been demonstrated to enhance heat transfer, anti-icing, and self-cleaning efficiency, and is governed by the theoretical inertial-capillary scaled jumping speed (U). When two droplets coalesce, the …
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Exploring lift-off dynamics in a jumping robot
We study vertical jumping in a simple robot comprising an actuated mass spring arrangement. The actuator frequency and phase are systematically varied to find optimal performance. Optimal jumps occur above and below (but not at) the robot's resonant frequency f0. Two distinct jumping modes emerge: …
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Cohomology Jumping Loci and the Relative Malcev Completion
Two standard invariants used to study the fundamental group of the complement X of a hyperplane arrangement are the Malcev completion of its fundamental group G and the cohomology groups of X with coefficients in rank one local systems. In this thesis, we develop a tool that unifies these two …
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Level-dependent volatility in jumping short-rate models
This dissertation constructs a no-arbitrage term structure with deterministically timed randomly sized jumps to price interest rate contingent claims while accounting for level-dependent volatility. This dissertation will price such claims using an implicit finite difference scheme to implement a …
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Hydrodynamics of jumping in archer fish, Toxotes microlepis
… study is able to successfully break the jumping behavior into three parts: (1) hovering, (2) thrust production and (3) gliding. Hovering is when the fish is beneath the surface of the water and is trying to maintain position. Thrust production occurs when the archer begins to perform tail …
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Electrowetting study of jumping droplets on hydrophobic surfaces
Recent studies have shown that jumping-droplet-enhanced condensation has higher heat transfer than state-of-the-art dropwise condensing surfaces by -30-40%. Jumping-droplet condensation occurs due to the conversion of surface energy to kinetic energy during the coalescence of microscale droplets, …
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Net Impulse and Net Impulse Characteristics in Vertical Jumping
… net impulse and its characteristics in vertical jumping to monitor athletes' performance status and responses/adaptations to interventions. Five variables were proposed as net impulse characteristics: net impulse height and width, rate of force development, shape factor, and net impulse …
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Correlates of political alignment: Jumping off the balancing bandwagon
This dissertation investigates the determinants of interstate political alignment, examining why states join others in conflictual or cooperative endeavors and which side they take in those situations. The puzzle it seeks to address is why some states are much more likely to gain support than …
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Box Jumping: Portfolio Recompositions to Achieve Higher Morningstar Ratings
… performance. This practice, which I label `box jumping', sacrifices fund performance but nonetheless attracts large inflows of capital because funds are rated based on their relative performance within style boxes. Box jumping funds also take advantage by charging higher fees, which investors …
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Jumping Connections: A Graph-Theoretic Model for Recommender Systems
… model that casts recommendation as a process of 'jumping connections' in a graph. In addition to emphasizing the social network aspect, this viewpoint provides a novel evaluation criterion for recommender systems. Algorithms for recommender systems are distinguished not in terms of predicted …
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Dynamic Gap-Crossing Movements in Jumping and Flying Snakes
Gap crossing is a regular locomotor activity for arboreal animals. The distance between branches likely plays a role in determining whether an animal is capable of crossing a given gap, and what locomotor behavior it uses to do so. Yet, despite the importance of gap distance as a physical parameter …
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Biology and Systematics of the Woodland Jumping Mouse, Napaeozapus Insignis
Made available in DSpace on 2014-12-12T01:27:31Z (GMT). No. of bitstreams: 1 7115005.pdf: 7400456 bytes, checksum: a2d8490f83d6a5075bda95e3a418b786 (MD5) Previous issue date: 1970
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Design and characterization of a compliant-joint robotic jumping leg
Biological systems employ compliant joints to allow robust contact with the surroundings and to increase locomotive efficiency. In this experiment, we designed a three-link robotic leg with a compliant calf tendon that was acutated by a DC motor at the hip and measured the effect of compliance on …
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Mechanical design of a jumping and self-balancing monopedal robot
This project involved the design and fabrication of a self-balancing monopedal robot which is intended to be used as a platform for physically validating simulated risk network based control analysis. A precomputed risk network allows a robot to evaluate the risk that an action will lead to an …
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Biomechanical Study of Jumping & Landing Techniques: Ballet vs Non-ballet Athletes
<p>INTRODUCTION: The prevalence of ACL injuries is increasing in previous years. One of the most common studied kinematic risk factors related to ACL injuries is a resultant weak, leg axis alignment known as the dynamic knee valgus angle presented during a vertical drop jump [8, 14, 15]. Hewett et. …
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Proprioception, jumping capacity and agility in beach versus indoor volleyball players
… proprioception can be trained. Maximal vertical jumping, lateral cutting sprints and diving to play the ball are repetitively demanded of volleyball players. BVB players complete these actions on sand (an uneven and unstable surface), making this sport, by definition, a continuous proprioceptive …
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Determination of Repetitive Jumping Intensity Relative to Measured VO<sub>2max</sub>
… Heart Association (AHA) strongly recommends rope jumping, and according to previous studies, rope jumping is considered a very strenuous exercise. Therefore the purpose of this study was to determine the steady state metabolic cost of repetitive jumping on the Digi-Jump machine, and to determine …
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Rope Jumping and the Endurance, Leg Power, Agility, and Coordination of Children
Made available in DSpace on 2014-12-08T21:22:55Z (GMT). No. of bitstreams: 1 6406041.pdf: 5451707 bytes, checksum: 19f75d0ecaa6950c2ea00a0f39e2e2a5 (MD5) Previous issue date: 1963
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