Thesis (M.D.)--University of Pennsylvania, 1801. / Microform version available in the Readex Early American Imprints series.

The warm springs pools, a natural wonder, are worth protecting and preserving. They are an important monument to the history and culture of the area. Architecture has the opportunity to function as a catalyst to reuse and reinterpret spaces in order to strengthen their place in history. This thesis is an investigation into the history of the warm spring pools and an analysis of existing conditions in order to determine the best approach to rejeuvinate and enhance the structures. It is an attempt to design updated structures while maintaining a balance between the old and new. Decisions on how to maintain and enhance the structures were made through study sketches, photographs and model building. The questions that are posed in the project include but are not limited to what can be changed or updated to not take away from what exists. / Master of Architecture

The purpose of the present study was to determine the effect of including a dryland activation during a 30-minute transition phase time between pool warm-up and competition on elite swimming performance. Previous research has shown the benefits of shorter transition times, or transition times that include dryland activation, improve swimming performance. Nine elite swimmers from the High-Performance Centre Victoria, 2 males and 7 females (18.7 ± 4.3 yrs), completed two testing sessions separated by one week, consisting of a 30-minute traditional (TRAD) or dryland (DL) transition phase followed by a 200-metre time-trial (TT). The swimmers swam the TT in their primary 200m event. Both transition phases were identical through the first 20-minutes but for the next 10 minutes, swimmers either sat quietly for 10 minutes (TRAD) or completed a 5-minute dryland activation 5 minutes pre-TT (DL). The dryland activation consisted of 2 sets of 40 seconds of jumping jacks and 6 explosive burpees completed self-paced but within a 5 minute time limit. Core temperature (Tcore) and Heart Rate (HR) were measured throughout the entire testing sessions. TT performance was significantly faster (p < .010) following DL (130.61 ± 10.46 secs) compared to TRAD (131.71 ± 11.08secs), an improvement of 0.84%. The third 50m split was also significantly faster (p < 0.18) following DL (34.83 ± 4.28secs) compared to TRAD (35.47 ± 4.47secs). Heart rate was significantly elevated following the dryland activation compared to the same time in TRAD (134 ± 22 vs. 84 ± 13bpm, p < 0.001). There were no significant differences in Tcore between the two transition phase conditions. The results from this research support the inclusion of a dryland activation during the transition phase of elite swimming competitions. As the smallest of differences can influence final placing at international level swimming competitions, the small gains found in the present study may have considerable implications for optimal swimming performance. / Graduate

No description available.

No description available.

No description available.

This study focuses on hot and warm forming properties of aluminum alloy AA5182 sheet, with attention toward warm forming, by using gas pressure to form sheet material. A temperature range of 300°C to 450°C and a pressure range of 690 kPa (100 psi) to 2410 kPa (350 psi) were used in a test matrix of twenty one different test conditions for gas-pressure forming of a sheet into hemispherical dome in a gas-pressure bulge test. Multiple sets of tensile data were used to develop a material model that predicts the dome height and shape of an axisymmetric bulge specimen at any given time during forming. In simulations of the forming process, 17 simulations of the total 21 experimental conditions showed good agreement with the experimentally measured dome heights throughout forming tests. The four cases that did not show good agreement between simulation and experiment are a result of strain-hardening in the material during forming. Strain hardening was not significant in tension testing of specimens and was not accounted for in the material model, which considered only strain rates slower than for these experimental bulge testing. This demonstrates an effect which must be considered in future simulations to predict forming approaching warm conditions. Two experimental bulge specimens were cross-sectioned post forming and grain sizes were measured to determine if grain growth occurred during the forming process. Experimental bulge specimens show no grain growth during the forming process. The tensile specimens from which the material model data were taken were measured to determine if plastic anisotropy was a possible issue. All specimens measured were proved to have deformed nearly isotropically. The results of this study show that predicting warm and hot forming of aluminum alloy AA5182 using gas pressure is possible, but that a more complex material model will be required for accurate predictions of warm forming. This is a very important step toward making hot and warm forming commercially viable mass production techniques. / text

Title: The effect of Warm Up Protocols on Explosive Power Performance in Track and Field Objectives: The main aim of this thesis was to compare three types of warm up protocols and their effects on explosive power performance. Methods: This thesis tested 43 students of UK FTVS, who visited Athletic Conditioning lessons. The group consisted of 28 men (height 183,2+-/5,6 cm) and 15 women (166,3 +-/5,7 cm) aged 20-23 years. There was six measuring sessions separated by a week off. They performed a 800 m aerobic warm up mean run, followed by one of three types of warm-up protocols (static, dynamic, balance). Each of the warm-up protocol was performed two times in the opposite order. The experiment examined the explosive power of lower limbs and upper body/limbs. Performance score were recorded from vertical jump, a ball throw, and medicine ball front throw. Results: The thesis did not confirm any of the hypotheses. It was found that the active static stretching had a positive medium effect on medicine ball front throw by Cohen scale effect size compared to the active dynamic and the active balance warm-up protocol. Other tests did not prove any significant changes, positive or negative, of any warm up protocols. Keywords: Dynamic warm-up, Static warm-up, Balance warm- up, Testing, Explosive Power

No description available.

A comparative study was made of the effects of varied time intervals of rest between warm-up and performance in the 440-yard dash by students in selected physical education classes at North Texas State University during the spring semester of 1967. This study was made to determine if the length of a rest interval after cessation of warm-up activity has any significant effect upon the subsequent performance in a 440-yard dash, and to determine if any length of rest interval facilitates performance in a 440-yard dash.