Zobrazeno 1 - 10
of 66
pro vyhledávání: '"L Tonge"'
Autor:
Qinglei Zeng, Andrew L. Tonge, William A. Goddard, Lori Graham-Brady, Amartya Bhattacharjee, K.T. Ramesh, Nilanjan Mitra, Ryan C. Hurley, Yidi Shen, Qi An, Mark O. Robbins, Joel T. Clemmer, Weixin Li
Publikováno v:
Journal of the American Ceramic Society. 105:3043-3061
We describe models for the behavior of hot-pressed boron carbide that is subjected to extreme dynamic environments such as ballistic impact. We first identify the deformation and failure mechanisms that are observed in boron carbide under such condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ccbace337adc4d8ab8286e5df6b629b
https://doi.org/10.1111/jace.18071
https://doi.org/10.1111/jace.18071
Publikováno v:
Journal of Science and Medicine in Sport. 24:580-584
Objectives The early childhood education and care (ECEC) environment has a significant role to play in the promotion of physical activity and reduction of sedentary behaviour in young children. Educators may be an important social factor influencing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f1c45a66af760cf5527b18ff0b4e98b
https://doi.org/10.1016/j.jsams.2021.02.003
https://doi.org/10.1016/j.jsams.2021.02.003
Publikováno v:
Journal of Physical Activity and Health. 17:423-428
Background: To examine the relationship between attributes of early childhood education and care (ECEC) settings and children’s physical activity and sedentary behavior. Methods: Cross-sectional study involving 490 children aged 2–5 years from 11
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7e5582fa641c6372a8abab2c8330e94
https://doi.org/10.1123/jpah.2019-0119
https://doi.org/10.1123/jpah.2019-0119
Publikováno v:
Journal of Early Childhood Research. :1476718X2211454
There is ongoing interest in free-flowing routines in early childhood education and care settings (ECEC), however little is known about educators’ perceptions of free-flowing routines. Therefore, the aim of this study was to explore the perceptions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58c324fb555229097af9509022aab6f8
https://doi.org/10.1177/1476718x221145476
https://doi.org/10.1177/1476718x221145476
Publikováno v:
Journal of the Mechanics and Physics of Solids. 130:370-392
This is the first part of a 2-paper series describing a generalized multi-mechanism constitutive model for the dynamic failure of quasi-brittle materials (e.g., ceramics and geomaterials), and focus on the poorly understood mechanism of amorphization
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3327b32a0abb65996abba6fe56c4444c
https://doi.org/10.1016/j.jmps.2019.06.012
https://doi.org/10.1016/j.jmps.2019.06.012
Publikováno v:
Early Childhood Education Journal. 47:31-41
Quality interactions are crucial for children’s learning and development. Early Childhood Education and Care (ECEC) centers have the opportunity to support children’s learning and development, yet the quality of interactions and influences on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9973ea5d747ce9f67902fda84f0ba7b2
https://doi.org/10.1007/s10643-018-0913-y
https://doi.org/10.1007/s10643-018-0913-y
Autor:
Brian E. Schuster, Andrew L. Tonge
Publikováno v:
Procedia Engineering. 204:247-254
This work discusses the calibration of an advanced material model for boron carbide and then compares simulations of a ballistic impact event to highly instrumented experiments. The experiments are instrumented using flash x-ray, high-speed video, an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fac46e3bbaf4b42a52737db513fc6a2
https://doi.org/10.1016/j.proeng.2017.09.732
https://doi.org/10.1016/j.proeng.2017.09.732
Autor:
Andrew L. Tonge, Brian E. Schuster
Publikováno v:
2019 15th Hypervelocity Impact Symposium.
This work investigates the importance of the microstructure of boron carbide for initiating inelastic deformation under impact conditions. Simple loading resulting from a flyer plate impact geometry is used to illustrate the importance of microstruct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::63eff7a0e29aa6a91f67f7f4801f05da
https://doi.org/10.1115/hvis2019-056
https://doi.org/10.1115/hvis2019-056
Publikováno v:
Preventive Medicine. 89:129-139
Objective To systematically review the correlates of physical activity and sedentary behavior among children in Early Childhood Education and Care (ECEC) services. Appropriate levels of physical activity and sedentary behavior are important to promot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59f84abfd43695b58d8485aaa2fb8fa3
https://doi.org/10.1016/j.ypmed.2016.05.019
https://doi.org/10.1016/j.ypmed.2016.05.019
Publikováno v:
Icarus. 266:76-87
We investigate the impact history of the Near Earth Asteroid (NEA) Eros 433 using a new material model for brittle materials such as rocks, where initial flaw distributions within the rock are explicitly defined to match what is known about flaw size
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c08890b618a4dda44de77765ff1459a
https://doi.org/10.1016/j.icarus.2015.11.018
https://doi.org/10.1016/j.icarus.2015.11.018