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 13 of 13 for “"force ratio"”.
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Investigation of deployable structures and their actuation
… structures that include void filling alterations and snap fit strengthening. The actuation and mechanical loading of the structures and the input to output force ratio were investigated. This understanding was applied to several actuation methods.
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The strength of glulam beams with holes - A probabilistic fracture mechanics method and experimental tests
… material strength class, bending moment to shear force ratio, beam size and hole placement with respect to beam height. One important finding from these tests is the strong beam size influence on the strength. This finding is in line with previous test results found in literature but the beam size …
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Exercise induced damage to skeletal muscle and connective tissue
… function. KE maximum isometric contraction force (MVC), MVC with superimposed myostimulation, and muscle force-frequency characteristics (20: 100 Hz stimulated force ratio) were impaired for up to 3 days post exercise. Increased delays in excitationcontraction (E-C) coupling were observed …
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ANALYSIS OF FRAME-CORE WALL BUILDINGS CONSIDERING EFFECTS OF AXIAL FORCE AND AXIAL DEFORMATION
The effects of axial force and axial deformation in columns on dynamic characteristics of frame-core wall tall buildings are considered in the present study. The governing equations of motion for the structure are formulated through a continuum approach idealizing the whole structure as a …
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The Influence of Frontal and Axial Plane Deformities on Contact Mechanics during Squatting: A Finite Element Study
… aligned models increased medial tibiofemoral force and lateral patellar contact pressures, while the valgus-aligned model increased lateral tibiofemoral force medial patellar contact pressures with no effects on total contact loads. The Model with a higher medial force ratio (medial …
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A Mixed-Methods Approach to Force Estimation in Military Operations Other Than War
This thesis presents a new method for estimating force size and composition for Military Operations Other than War. While military planners have tools for planning these kinds of operations, they are largely inaccessible or unsuitable for civilian use. The most common tool for force estimation in …
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Variable stiffness orthosis for gait normalization in patients with toe walking
… disorder that causes progressive muscle degeneration. DMD patients tend to walk on their tip toes because of their weak calf muscles and currently do not have many options for managing the fatigue induced by supporting most of the foot strike impact with the ball of their feet. Patients with …
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The Effect of a Field Shaper on Electromagnetic Forming of Aluminum Tubes
… tube would require a significant corner to side force ratio and may not be feasible. Additional forming attempts with a field shaper and a steel mandrel for support were not able to completely form the corners to the same deformation as the sides. However the sides do have significant deformation …
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Ground Reaction Forces Are Predicted With Functional and Clinical Tests in a Healthy Collegiate Population
… to generate models predicting Ground Reaction Forces (GRFs), an established predictor of ACL injury incidence, from practical functional and clinical tests. Participants: Forty-two healthy, active college age individuals (21 females, age 20.667±1.461; 70.702±2.363cm; 82.202±7.606kg; 21 …
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Influence of Thigh Muscle Forces on Anterior Cruciate Ligament Forces during Single-Leg Landing from Three Different Heights
… the quadriceps muscle produces an anterior shear force on the tibia that causes the ACL to strain, the hamstrings muscle can protect the ACL by producing a posterior shear force to the tibia reducing the strain. When the hamstrings contract simultaneously with the quadriceps, ACL strains are …
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Fully Compliant Tensural Bistable Mechanisms (FTBM) with On-Chip Thermal Actuation
… thermal actuators were optimized to the force and displacement requirements of the bistable mech-anisms, and selected FTBM devices were combined in switching systems with the result-ing Thermomechanical In-plane Microactuators (TIMs) and Amplified Thermomechanical In-plane Microactuators …
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No Half Measures Power Vacuums and Military Occupations
… commentators caution against the withdrawal of forces. But what exactly is fearful about a power vacuum remains unclear. The concept of a power vacuum lacks defined parameters and scope, and why military occupations might lead to power vacuums is unknown. Much of the current analysis derives …