Thesis (M.S.)--California Polytechnic State University, 2009. / Title from PDF title page; viewed on March 11, 2009. "February 2009." "In partial fulfillment of the requirements for the degree [of] Master of Science in Mechanical Engineering." "Presented to the faculty of California Polytechnic State University, San Luis Obispo." Major professor: Tom Mase, Ph.D. Includes bibliographical references (p. 102-103). Also available on microfiche.

Thesis (Ph. D.)--Lehigh University, 2004. / Includes vita. Includes bibliographical references (leaves 119-122).

Thesis (M.S.)--Springfield College, 2003. / Includes bibliographical references (leaves 107-111).

Thesis (M.S.)--California Polytechnic State University, 2010. / Title from PDF title page; viewed on May 10, 2010. Major professor: Tom Mase, Ph.D. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Mechanical Engineering." "March 2010." Includes bibliographical references.

Thesis (M.S.)--California Polytechnic State University, 2010. / Mode of access: Internet. Title from PDF title page; viewed on Feb. 9, 2010. Major professor: Dr. Tom Mase. "Presented to the faculty of California Polytechnic State University, San Luis Obispo." "In partial fulfillment of the requirements for the degree [of] Master of Science in Mechanical Engineering." "January 2010." Includes bibliographical references (p. 172-175).

A system was designed, built and tested in order to test the aerodynamic properties of a standard golf ball in a wind tunnel manufactured by ELD, Inc. model 406(B). The system consists of a rotating shaft, on which the golf ball is attached, connected to a two-axis force transducer. Additionally, an automated data acquisition system was built for enhanced precision of measurements. Data for wind speeds up to 160 ft/s and rotational speeds up to 8,600 rpm were obtained and analyzed. The purpose of the designed apparatus was to allow for studies to better understand the lift and drag coefficients of golf balls during their flight. Subsequent to testing, it was found that the force transducer was not adequate to measure the lift and drag coefficients with sufficient accuracy. Several suggestions have been made on how to improve the wind tunnel so that better results might be obtained in the future.

VYUŽITÍ SPECIÁLNÍCH POMŮCEK V TRÉNINKU HOKEJOVÉ MLÁDEŽE V PŘÍPRAVNÉM OBDOBÍ Objectives: A usage of special equipment in practice in ice-hockey during off-ice practice and its further analysis and evaluation. Methods: To get the aim of comparing a common practice and a special practice I will use special exercises for a speed of learning of new skills. The new methods will be used in a modern practice. I will observe reactions of children about the other kind of practice and effectiveness of modern practice as well. Results: Results of modern practice show that children like learning new activities and methods. More various practices were better for their motivation and interest. A practice was much more intensive when I used suitable game-like methods. Effectiveness of learning raised when I used modern practice. Keywords: Balance exercises, bosu training, carts, stick handling, wooden or golf balls, stickhandling board, power skating, core.

This thesis is concerned with the problem of predicting the remaining part of the trajectory of a golf ball as it travels through the air where only the three-dimensional position of the ball is captured. The approach taken to solve this problem relied on recurrent neural networks in the form of the long short-term memory networks (LSTM). The motivation behind this choice was that this type of networks had led to state-of-the-art performance for similar problems such as predicting the trajectory of pedestrians. The results show that using LSTMs led to an average reduction of 36.6 % of the error in the predicted impact position of the ball, compared to previous methods based on numerical simulations of a physical model, when the model was evaluated on the same driving range that it was trained on. Evaluating the model on a different driving range than it was trained on leads to improvements in general, but not for all driving ranges, in particular when the ball was captured at a different frequency compared to the data that the model was trained on. This problem was solved to some extent by retraining the model with small amounts of data on the new driving range. / Detta examensarbete har studerat problemet att förutspå den fullständiga bollbanan för en golfboll när den flyger i luften där endast den tredimensionella positionen av bollen observerades. Den typ av metod som användes för att lösa problemet använde sig av recurrent neural networks, i form av long short-term memory nätverk (LSTM). Motivationen bakom detta var att denna typ av nätverk hade lett till goda resultatet för liknande problem. Resultatet visar att använda sig av LSTM nätverk leder i genomsnitt till en 36.6 % förminskning av felet i den förutspådda nedslagsplatsen för bollen jämfört mot tidigare metoder som använder sig av numeriska simuleringar av en fysikalisk modell, om modellen användes på samma golfbana som den tränades på. Att använda en modell som var tränad på en annan golfbana leder till förbättringar i allmänhet, men inte om modellen användes på en golfbana där bollen fångades in med en annan frekvens. Detta problem löstes till en viss mån genom att träna om modellen med lite data från den nya golfbanan.