Bowling ball dynamics revealed by miniature wireless MEMS inertial measurement unit   总被引：1，自引：1，他引：0  

Kevin King  N. C. Perkins  Hugh Churchill  Ryan McGinnis  Ryan Doss  Ron Hickland 《Sports Engineering》2011,13(2):95-104

This paper presents a novel sensor technology to deduce the dynamics of a bowling ball. The sensor, a miniature wireless inertial measurement unit (IMU), incorporates MEMS accelerometers and angular rate gyros, a microcontroller, a low power RF transceiver, and a rechargeable battery. When embedded in a bowling ball, the IMU transmits the acceleration and angular velocity data that define the dynamics of the ball starting with the bowler’s delivery and its motion in the lane. Example results from professional bowlers illustrate how this technology can be used to assess bowler skill and ball performance. For instance, the IMU accurately measures the spin dynamics of the ball which are crucial to develop the ball “hook.” An analysis of ball dynamics in the lane is distilled to a measurable “hook potential” metric for further assessing bowler skill. Finally, the sensor presented herein is believed to be the world’s smallest, wireless IMU. This highly miniaturized and wireless design will enable parallel training systems for many sports, including basketball, baseball, crew, cricket, golf, fly fishing, soccer, softball, tennis, rowing, among others.  相似文献   

A Literature Review of How Videogames Are Assessed in Library and Information Science and Beyond     

Ron T. Brown 《The Journal of Academic Librarianship》2014,40(5):447-451

In this paper the author explores how videogames and gaming are assessed in Library and Information Science (LIS) and in other fields. The author concludes with a discussion of some potential future directions for assessment practices of videogames and gaming in LIS.  相似文献   

Inter-University Cooperation and ERASMUS: The Integration of French LEA Students in British Undergraduate University Courses     

Russell Cousins  Ron Hallmark  Ian Pickup 《Higher Education Quarterly》1990,44(1):82-97

With the advent of the ERASMUS programme a new impetus has been given to the exchange of students between countries within the European Community. Having outlined the aims and objectives of ERASMUS, the authors take as a case-study the development of links between the Universities of Birmingham and Grenoble III (Stendhal University), from the initial inter-university agreemart to the creation of an ERASMUS diploma. The problems posed by diffetences in university systems and practices in Britain and France are identified. Academic issues discussed include the relative merits of contrastive and complementay study programmes, the tailoring of course packages to the needs of specific groups of students, linguistic difficulties, assessment and validation procedures. After a brief consideration of practical arrangements, the article concludes with an evaluation of lessons which are to be learnt and of the extent to which such an initiative might be said to fulfil the ideals of the ERASMUS program.  相似文献   

Without You. Children and Young People Growing Up with Loss and its Effects. By Tamar Granot     

Ron Best 《Pastoral Care in Education》2007,25(2):56-57

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Family grouping: A structural innovation in elementary schools     

Ron Buston 《Interchange》1977,8(1-2):143-150

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Editorial. Evolution education: An area of needed research     

Ron Good 《科学教学研究杂志》1992,29(10):1019-1019

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Note from former editor     

Ron Good 《科学教学研究杂志》1994,31(9):873-873

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Exploration of technical and nontechnical employee attitudes toward participation in training     

Ben Ryburn  Dan Brown  Ron Meier 《Performance Improvement》2011,50(8):33-40

This study examined technical and nontechnical employee attitudes toward participation in training. A survey was administered to 337 self‐identified technical and nontechnical university employees. Our findings are as follows: (a) most employees prefer training that is less than 2 hours in length, (b) employees do not want training outside their regular shift, (c) employees strongly prefer hands‐on training, and (d) less than half were encouraged by their supervisor to apply what was learned in nontechnical training to their job.  相似文献   

Faith and Experience in Education. Essays from Quaker perspectives     

Ron Best 《Pastoral Care in Education》2019,37(1):83-85

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The Representation of Altruistic and Egoistic Motivations in Children’s TV Programming     

Ron Tamborini  Lindsay Hahn  Brian Klebig  Clare Grall 《Communication Research Reports》2017,34(1):58-67

A content analysis of children’s television examined the frequency with which behaviors were (a) driven by altruistic versus egoistic motivations, (b) performed by affable/surly characters, (c) rewarded/punished, and (d) present in content popular among different age groups (2–5, 6–11, and 12–17 years old). We found that portrayal patterns stressed the importance of egoistic motivations (particularly competence, autonomy, and relatedness) for older children. The findings are interpreted in line with logic underlying the model of intuitive morality and exemplars (MIME; Tamborini, 2013), suggesting that media representations can influence the motivations of their viewers.  相似文献