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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 46 for “"strength ratio"”.
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The Relationship Between the Hamstrings to Quadriceps Strength Ratio and Anterior Cruciate Ligament Forces
… ACL, respectively. Thus, some believe that the ratio of the strengths of these muscles groups (the H:Q strength ratio) is relevant when discussing ACL forces; a low H:Q ratio predisposes one to ACL injury because the weaker hamstrings cannot counteract the antagonistic quadriceps. The link …
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Hamstring/quadriceps strength ratios: An analysis and a strength training study
… to examine the hamstring:quadriceps (H:Q) ratios of female soccer athletes, and to test the effects of a six week strength training program on these ratios. Twelve NCAA Division I female soccer athletes volunteered for this study. Subjects completed two practice sessions, a pretest, six …
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Liquefaction Analysis of Level and Sloping Ground Using Field Case Histories and Penetration Resistance
… relationships to estimate yield and liquefied strength ratio, and does not require a suite of laboratory tests or corrections for sloping ground and vertical effective stress. The procedure is verified initially using the Lower San Fernando Dam case history.
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Seismic Design Studies of Low-Rise Steel Frames
… such as design base shear, beam-to-column strength ratio, moment-resisting connection behavior, nonstructural element participation, etc. The influence of these parameters was determined by performing inelastic time-history analyses.
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Effective and total stress strength interpretation for silts
… to investigate the factors that control the strength parameters of silts. Effective and total stress strength interpretation were done on the test results. The effective stress friction angle were evaluated using the CU triaxial test results. Undrained strength parameters were determined from …
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Performance Comparison of PG 64-22 versus PG 64-28 Asphalt in Hot Mix Asphalt Placed in Connecticut
… critical cracking temperature, tensile strength ratio, and APA rutting. In order to compare the performance of PG 64-22 and PG 64-28 asphalt, the field performance data and laboratory parameters have been statistically analyzed and compared. It was found that the field cracking, …
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Improvement of inelastic performance for friction damped asymmetric buildings
… thesis investigates the effect of having brace strength eccentricity (slip load eccentricity) negative that of stiffness eccentricity on the performance of friction damped braced frames, in an effort to improve the efficiency of friction damped braced frames in single and multi-storey buildings. …
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Predicting and testing the tensile relaxation of concrete
… two. The parameters investigated include: w/c ratio, age of loading, initial stress-strength ratio and aggregate content. Tensile relaxation tests are difficult to perform and hence prediction models are often relied upon to predict relaxation. Two simplified approximate methods are suggested …
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Acute effect on vertical jump performance after two types of heavy squat exercises
… was found. Correlations between the relative strength ratio and the difference in averaged jump heights before and after the half and the quarter squat conditions were also tested, and no correlation was found (r = -0.128, p-value = 0.724; and r = -0.189, p-value = 0.601, respectively). Since …
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Interação solo-estaca de plataformas offshore
… depth and the skin friction to undrained shear strength ratio. The Winkler method usually works out well, for a close Winkler spring distribution. However a deep water Offshore Fixed Platform-foundation analysis by the Winkler solution, excessively increases the number of degrees of freedom. …
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Analysis of a Lateral Spreading Case History from the 2007 Pisco, Peru Earthquake
… for the determination of the undrained strength of the liquefied soils; hence, the main objective of this research is to use the extensive data from the Canchamana Slide to estimate the shear strength of the liquefied soils. In engineering practice, the undrained strength of liquefied …
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FUNCTIONAL HAMSTRING: QUADRICEPS RATIO AND HAMSTRING INJURY INCIDENCE IN TRACK AND FIELD ATHLETES
… competition. Functional hamstring to quadriceps strength ratio was measured to study muscular imbalances in these athletes. The hypotheses were: 1) Athletes with previous hamstring injuries have a greater chance of subsequent hamstring injury whether or not they have a functional ratio deficit …
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Failure Mechanisms and Strength of Non-Persistent Rock Joints
Jennings method which assumes full shear strength along joint and rock bridge is a useful reference condition. The Bridge Mobilized Strength Ratio, BMSR, provides a means of assessing how much of the reference strength along the bridge is mobilized. The MBSR is the ratio of (mobilized shear …
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Development of flexural design values for pallet shook
Rational design of wood pallets requires estimates of average flexural properties of pallet lumber of many species and visual grades. The objective of this study was to develop procedures for estimating these design values for use in a first-order second-moment design format. Preliminary studies …
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Evaluation of the IDEAL-CT for Hveem-Designed Asphalt Mixtures in Nevada
… specimens to determine the tensile strength for moisture damage evaluation in accordance with AASHTO T 283 (tensile strength ratio, TSR). In addition, the Moisture Induced Stress Tester (MiST) was examined as a potential alternative for the freeze-thaw cycle of moisture-conditioned …
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An experimental investigation into the stress-dependent mechanical behavior of cohesive soil with application to wellbore instability
… specimen geometry, preshear lateral stress ratio, drainage conditions, consolidation stress level, stress history, and cavity volumetric strain rate. This testing program has been performed using small and large TWC devices with outer diameter, Do=7.6cm and 15.2cm, respectively. Both devices …
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The mechanical behavior of heavily overconsolidated resedimented Boston Blue Clay
… Ko-consolidated and swelled to overconsolidation ratios (OCR) ranging from 5 to 62 on RBBC, as well as on Intact Presumpscot Maine Clay. Specimens were consolidated to maximum stress levels between 1.1 and 5.4 MPa. The undrained shear behavior revealed an important relationship with …
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Laboratory and Field Evaluation of Two Warm-Mix Additives in Connecticut and Validation of an Alternative Moisture Susceptibility Test
… and compared to the traditional Tensile Strength Ratio as well as the change in bulk specific gravities. The results were mixed results of HMA and WMA specimens. Furthermore, the spectroscopic analysis showed potential differences between the mixes.</p>
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Ankle sprain prevention - the effect of the Nike Free shoe in elite male soccer players
… collected, as well as scores on tests of ankle strength, static balance, dynamic balance, agility and self-reports of ankle function. These scores were compared to those of the control team. Statistical analysis showed a statistically significant improvement in the experimental team members in …
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A parametric investigation on the shear strength and bearing capacity of Cenozoic Berea Red Sand with geosynthetic reinforcements
… cohesive soils vary in colour, composition, and strength. Despite the understanding of limited works being published on the geotechnical properties on Berea Red sands as well as the implementation of reinforcing agents to improve it, this study was undertaken to investigate the bearing capacity …
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