Zobrazeno 1 - 10
of 19
pro vyhledávání: '"W. P. Hoffman"'
Publikováno v:
Scientific Electronic Archives, Vol 14, Iss 1, Pp 74-79 (2020)
School evaluative processes are motivators for several discussions in pedagogical environments, so that, if evaluations are poorly constructed and decontextualized, they imply learning processes and school permanence. In this sense, the present study
Externí odkaz:
https://doaj.org/article/16396fe1dcbe4188ab740f96eddf3e05
Publikováno v:
Scientific Electronic Archives, Vol 14, Iss 1, Pp 74-79 (2020)
School evaluative processes are motivators for several discussions in pedagogical environments, so that, if evaluations are poorly constructed and decontextualized, they imply learning processes and school permanence. In this sense, the present study
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::686826d8c5aa6685b4d4380f79bd0f32
https://doi.org/10.36560/14120211271
https://doi.org/10.36560/14120211271
Autor:
J. R. Schorr, P. J. Wurm, Kenneth H. Sandhage, Matthew B. Dickerson, W. P. Hoffman, P. G. Wapner
Publikováno v:
Journal of Materials Science. 39:6005-6015
Dense, near net-shaped ZrC/W-based composites have been fabricated at modest temperatures and at ambient pressure by a reactive infiltration process known as the Displacive Compensation of Porosity (DCP) method. Porous WC preforms with hourglass shap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba795303b741d24327913d018b8092fc
https://doi.org/10.1023/b:jmsc.0000041697.67626.46
https://doi.org/10.1023/b:jmsc.0000041697.67626.46
Publikováno v:
Materials Chemistry and Physics. 74:272-281
The thermal stability of refractory carbide/boride composites in oxidizing environment was analyzed. The multi-component thermodynamic stability diagrams for the complex (Hf, Ta, Zr, Si)–C(B)–O composite systems were generated using the proposed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d03236f7a8759f819b108453a98e465e
https://doi.org/10.1016/s0254-0584(01)00486-2
https://doi.org/10.1016/s0254-0584(01)00486-2
Publikováno v:
Journal of Materials Science. 29:3984-3992
This paper has three principle thrusts: (i) the fabrication of unidirectionally reinforced composites made from carbon fibres subjected to different surface treatments in combination with various (polycarbonate, polyethersulphone and epoxy) matrices,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::37fd49352f85ff6209777e978c549dec
https://doi.org/10.1007/bf00355958
https://doi.org/10.1007/bf00355958
Publikováno v:
Journal of Materials Science. 29:3461-3468
This paper has three principle thrusts: (i) the fabrication of unidirectionally reinforced composites made from carbon fibres subjected to different surface treatments in combination with various (polycarbonate, polyethersulphone and epoxy) matrices,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6c5003630cc6dd5582496f9b3381e214
https://doi.org/10.1007/bf00352050
https://doi.org/10.1007/bf00352050
Publikováno v:
Journal of Materials Science. 29:2968-2980
The surface structure and morphology of several high strength polyacrylonitrile (PAN) based carbon fibres was studied with the scanning electron microscope (SEM) on the micrometre scale and the scanning tunnelling microscope (STM) down to the atomic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56b2c31d56963239cf20b516a762cf4d
https://doi.org/10.1007/bf01117609
https://doi.org/10.1007/bf01117609
Publikováno v:
Toxicology Methods. 4:234-242
Manufacturing intermediates and formulation components constitute the bulk of compounds evaluated in ocular irritation protocols. A cost-effective in vitro screen for predicting severe ocular reactions, which reduces the chance of exposing animals to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d45e55be06bb12f45055fcb0aaa8e083
https://doi.org/10.3109/15376519409068449
https://doi.org/10.3109/15376519409068449
Publikováno v:
Journal of Materials Science. 26:4545-4553
The scanning tunnelling microscope (STM) was used to examine the surfaces of P-55 pitch-based carbon fibres before and after they had experienced various surface treatments (to < 1% weight loss), which included treatment in an argon plasma, as well a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db1a5dc58a7c25fb5a111d36625a70d9
https://doi.org/10.1007/bf00612388
https://doi.org/10.1007/bf00612388
Publikováno v:
Journal of Materials Research. 6:1685-1694
The atomic structure and roughness on the surface of a carbon fiber have a great effect on the degree of bonding of that fiber in a carbon fiber composite. Although there have been many studies on the bulk structure of these fibers, this is the first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0c904fa34b0b2de7c030e23b38ffa3ca
https://doi.org/10.1557/jmr.1991.1685
https://doi.org/10.1557/jmr.1991.1685