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Tighe Elizabeth L. Little Callie W. Arrastia‑Chisholm Meagan Caridad Schatschneider Christopher Diehm Emily Quinn Jamie M. Edwards Ashley A. 《Reading and writing》2020,33(5):1375-1376
Reading and Writing - In the original publication of the article. 相似文献
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A forward dynamics computer simulation for replicating tennis racket/ball impacts is described consisting of two rigid segments
coupled with two degrees of rotational freedom for the racket frame, nine equally spaced point masses connected by 24 visco-elastic
springs for the string-bed and a point mass visco-elastic ball model. The first and second modal responses both in and perpendicular
to the racket string-bed plane have been reproduced for two contrasting racket frames, each strung at a high and a low tension.
Ball/string-bed normal impact simulations of real impacts at nine locations on each string-bed and six different initial ball
velocities resulted in <3% RMS error in rebound velocity (over the 16–27 m/s range observed). The RMS difference between simulated
and measured oblique impact rebound angles across nine impact locations was 1°. Thus, careful measurement of ball and racket
characteristics to configure the model parameters enables researchers to accurately introduce ball impact at different locations
and subsequent modal response of the tennis racket to rigid body simulations of tennis strokes without punitive computational
cost. 相似文献
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Much past research on commercialization activities by university scientists and engineers has focused on the role of resources in the extra-organizational commercialization environment, such as the availability of venture capital funding. By contrast, our theoretical and empirical interest was in intra-organizational dynamics impacting the context in which scientists and engineers work. Drawing upon organizational psychology literature on the construct of organizational climate, we posited that researchers working in an intra-organizational climate that supports commercialization and encourages intra-organizational boundary-spanning will be more likely to produce invention disclosures and patents. Our data from 218 respondents at 21 engineering research centers was both multi-method (i.e., qualitative data from interviews, longitudinal archival data, and survey data) and multi-level. Our results showed that an organizational climate characterized by support for commercialization predicted invention disclosures one year later and an organizational climate characterized by boundary-spanning predicted patent awards two years later. 相似文献