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 8 of 8 for “"Approach angle"”.
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Influence of approach angle on ball velocity during the American football instep placekick
… competition. Insight into self-selected (SS) approach angle and whether an optimal angle exists for maximal ball velocity may improve performance. Methods: Three selected approach angles (30°, 45°, 60°) and a SS approach angle were assessed to analyze kicking velocity among 11 intercollegiate …
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General Vector Explicit - Impact Time and Angle Control Guidance
… called General Vector Explicit - Impact Time and Angle Control Guidance (GENEX-ITACG). The motivation for GENEX-ITACG came from an explicit trajectory shaping guidance law called General Vector Explicit Guidance (GENEX). GENEX simultaneously achieves design specifications on miss distance and …
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Biomechanical analysis of instep kick in soccer
… research undertaken investigating the effects of approach angles on the three dimensional kinematics of instep-kick in soccer. The research presented in this thesis investigated the effect of approach angle variations on distance covered by the ball, accuracy of the kick and 3D human body …
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Numerical investigation of the fluidelastic instability of two-phase flow in a parallel triangular tube array
… to address the problem of varying the flow’s angle of attack inside the U-bend, known as flow’s approach angle, and how it influences the onset of the instability. Finally, due to the curvature of the tubes inside the U-bend region, they are not tuned to a single natural frequency, a case …
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Effect of a Range Ring and of Intruder Vertical Rate on Pilot Perception of Separation on a Cockpit Display of Traffic Information
… research was also performed on miss distance and approach angle.</p>
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Constrained trajectory optimization of a soft lunar landing from a parking orbit
… but the final vehicle attitude and landing approach angle remained largely horizontal. This motivated inclusion of attitude kinematics and constraints to the system. With rotational motion included, the optimal solution was feasible, but the trajectory still had undesirable characteristics. …
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An Examination of Aggressive Behavior in Indo-Pacific Bottlenose Dolphins (<i>Tursiops Aduncus</i>)
… of the study was to determine if age class, sex, approach angle, and body posture influenced aggression within this population. The area of the recipient's body towards which aggression was directed was also examined to determine which body parts were most commonly attacked, if any. Neither age …
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Flow characteristics and acoustic resonance excitation of finned cylinders in cross-flow
… revealed that the equivalent diameter approach does not consider the intrinsic changes in the flow characteristics caused by the addition of fins. Dynamic lift force and aeroacoustic response measurements revealed that these changes affected the finned cylinder’s susceptibility to …