نتایج جستجو برای: technological properties
تعداد نتایج: 945521 فیلتر نتایج به سال:
A study of the technology foamed concrete production is carried out. The engineering properties and applications this type are presented for varying densities so as to effectively tap advantages its use specific purposes. considered 7-day compressive strength, thermal conductivity, modulus elasticity drying shrinkage. behaviours at dry different characteristics was undertaken. Results indicate ...
in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...
in this thesis, structural, electronical, and optical properties of inverse pervskite(ca3pbo) in cubic phase have been investigated.the calculation have been done based on density functional theory and according to generalized gradiant approximate (gga) as correlating potential. in order to calculate the configurations, implementing in the wien2k code have been used from 2013 version. first of ...
This paper deals with the diversity of patterns of innovation across industrial sectors and the definition of technological regimes. Technological regimes are important because they identify common properties of innovative processes in distinct sets of production activities. Such properties contribute to interpreting asymmetries in the dynamics of industrial competition. This paper revises the ...
psychometric properties of automatic thoughts questionnaire and investigation of the relationship between automatic thoughts with cognitive emotion regulation and self regulated learning
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