scholarly journals Novel power hop model for an agricultural tractor with coupling bouncing, stick-slip, and free-play dynamics

2021 ◽  
Vol 204 ◽  
pp. 156-169
Author(s):  
Masahisa Watanabe ◽  
Kenshi Sakai
Keyword(s):  
Free Play ◽  
Stick Slip ◽  
Agricultural Tractor

Examining the Role of Language in Play Among Children With and Without Developmental Disabilities

2020 ◽  
Vol 51 (3) ◽  
pp. 795-806 ◽  
Author(s):  
Elizabeth J. Short ◽  
Rachael Cooper Schindler ◽  
Rita Obeid ◽  
Maia M. Noeder ◽  
Laura E. Hlavaty ◽  
...  
Keyword(s):  
Developmental Disabilities ◽  
Autism Spectrum ◽  
Free Play ◽  
Group Differences ◽  
Typically Developing ◽  
Play Skills ◽  
Critical Aspect ◽  
Hyperactivity Disorder ◽  
Better Than

Purpose Play is a critical aspect of children's development, and researchers have long argued that symbolic deficits in play may be diagnostic of developmental disabilities. This study examined whether deficits in play emerge as a function of developmental disabilities and whether our perceptions of play are colored by differences in language and behavioral presentations. Method Ninety-three children participated in this study (typically developing [TD]; n = 23, developmental language disorders [DLD]; n = 24, attention-deficit/hyperactivity disorder [ADHD]; n = 26, and autism spectrum disorder [ASD]; n = 20). Children were videotaped engaging in free-play. Children's symbolic play (imagination, organization, elaboration, and comfort) was scored under conditions of both audible language and no audible language to assess diagnostic group differences in play and whether audible language impacted raters' perception of play. Results Significant differences in play were evident across diagnostic groups. The presence of language did not alter play ratings for the TD group, but differences were found among the other diagnostic groups. When language was audible, children with DLD and ASD (but not ADHD) were scored poorly on play compared to their TD peers. When language was not audible, children with DLD were perceived to play better than when language was audible. Conversely, children with ADHD showed organizational deficits when language was not available to support their play. Finally, children with ASD demonstrated poor play performance regardless of whether language was audible or not. Conclusions Language affects our understanding of play skills in some young children. Parents, researchers, and clinicians must be careful not to underestimate or overestimate play based on language presentation. Differential skills in language have the potential to unduly influence our perceptions of play for children with developmental disabilities.

Deconstruction and Translation Research

Derrida Today ◽  
2018 ◽  
Vol 11 (1) ◽  
pp. 22-36 ◽  
Author(s):  
Yifeng Sun
Keyword(s):  
Free Play ◽  
Translation Research ◽  
Translation Strategies ◽  
Modes Of Representation

Deconstruction is decidedly unsettling in that it destabilizes the otherwise comfortably assumed understanding of the nature of translation. What is also controversial is that it may make translation impossible, considering that it explicitly acknowledges the impossibility of translation. Yet Derrida emphasizes the necessity of translation as well, thus foregrounding the need to negotiate with the non-negotiable, and for this reason, to translate the untranslatable. Deconstruction captures and elucidates the complexity of translation in relation to the variability and complexity of its nature and practice. Despite the disconcerting observation of his devastatingly relativist overtone and open-endedness, Derrida does not uphold complete free play, as is repeatedly pointed out by himself and other scholars. This paper argues that the context of translation plays a regulating role and intends to unravel what he calls translation as both possible and impossible, both respectful and abusive. Inspired by Derrida's profound contention that translation is in a way more about ‘what is not there’ than ‘what is there’, this paper will map some of the multiple implications of meaning and various modes of representation in translation, in which different meanings can be played with so as to give rise to spaces for exploring and expanding the range of translation strategies and methods.

Diagnostic System of Gravitational Solid Flow Based on Weight and Accelerometer Signal Analysis Using Wireless Data Transmission Technology

2012 ◽  
Vol 17 (4) ◽  
pp. 319-326 ◽  
Author(s):  
Zbigniew Chaniecki ◽  
Krzysztof Grudzień ◽  
Tomasz Jaworski ◽  
Grzegorz Rybak ◽  
Andrzej Romanowski ◽  
...  
Keyword(s):  
Signal Analysis ◽  
Scale Up ◽  
Three Dimensional ◽  
Diagnostic System ◽  
Wireless Data ◽  
Stick Slip ◽  
Wireless Data Transmission ◽  
Accelerometer Signal ◽  
Flow Investigation ◽  
Material Information

Abstract The paper presents results of the scale-up silo flow investigation in based on accelerometer signal analysis and Wi-Fi transmission, performed in distributed laboratory environment. Prepared, by the authors, a set of 8 accelerometers allows to measure a three-dimensional acceleration vector. The accelerometers were located outside silo, on its perimeter. The accelerometers signal changes allowed to analyze dynamic behavior of solid (vibrations/pulsations) at silo wall during discharging process. These dynamic effects are caused by stick-slip friction between the wall and the granular material. Information about the material pulsations and vibrations is crucial for monitoring the interaction between silo construction and particle during flow. Additionally such spatial position of accelerometers sensor allowed to collect information about nonsymmetrical flow inside silo.

Nature's Powerful Tutors; The Educative Functions of Free Play

2007 ◽  
Vol 12 (1) ◽  
pp. 18-21 ◽  
Author(s):  
Peter Gray
Keyword(s):  
Free Play
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