Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Shengnan Bai"'
Autor:
Shengnan Bai
Publikováno v:
Frontiers in Psychology, Vol 11 (2020)
This research focuses on developing a learning progression of probability for middle school students, and it applies the GDINA model in cognitive diagnosis models to data analysis. GDINA model analysis firstly extracted nine cognitive attributes and
Externí odkaz:
https://doaj.org/article/82957b657c4240b4855df7471a6f6e60
Publikováno v:
ChemistrySelect. 5:12213-12217
Publikováno v:
ChemistrySelect. 5:265-269
Publikováno v:
Diamond and Related Materials. 109:108092
Nanodiamond (ND) was surface modified by polyethylene glycol (PEG) to improve the interfacial adhesion between ND and the polylactic acid (PLA) matrix and achieve uniform nanoparticle dispersion in the matrix. PEG functionalized ND (ND-PEG) was succe
Publikováno v:
Materials Today Communications. 24:101352
A phthalonitrile oligomer containing thioether bonds, namely, 4,4′-((((((2-cyano-1,3-phenylene) bis(oxy))-bis(4,1-phenylene))bis(sulfanediyl))bis(4,1-phenylene))bis(oxy))diphthalonitrile (BSDP), was successfully prepared via nucleophilic substituti
Publikováno v:
Polymer Degradation and Stability. 177:109192
In this work, composite materials with different halloysite nanotubes (HNTs) content as fillers were prepared by using phthalonitrile resin with alkyl center as matrix. In order to improve the dispersibility of HNTs in the polymers, phenylphosphonic
Publikováno v:
SSRN Electronic Journal.
Based on the TIMSS2015 data, this study applied a multi-layer linear model to explore the influence of teacher variables on students’ mathematics scores. Teacher variables were composed of teacher characteristic variables, teacher teaching variable