نتایج جستجو برای: light weight structure

تعداد نتایج: 2194838  

Journal: :Journal of Minimal Access Surgery 2006

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In this project, mesoporous titanium oxide-silicon oxide doped by silver (TiO2-SiO2-Ag) was hydrothermally synthesized. Titanium isopropoxide, tetraethyl orthosilicate and silver nitrate were used as precursors for TiO2, SiO2 and Ag, respectively. Initially TiO2-SiO2 mesoporous nanocomposite was synthesized with weight ratios of silica to titania SiO2:TiO2:3:1 via hydrothermal method at 70˚C an...

Journal: :IOP Conference Series: Materials Science and Engineering 2020

Journal: : 2023

Günümüzün en önemli yapı malzemelerinden biri olan betonun farklı özel çeşitleri bulunmaktadır. Bunlardan biride hafif betonlardır. Hafif betonlar (HB) üzerinde yapılan çalışmalarla birim ağırlıkları azaltılmakta ve üretilen betonlara ultra beton denilmektedir (UHB). Birim azaltılmaya çalışılırken basınç dayanımı, ses emme özelliği, ısıl iletkenlikleri, yangına dona dayanıklılıkları gibi özelli...

Journal: :IEEE Access 2021

Due to the growing demand for video streaming services, providers have deal with increasing resource requirements increasingly heterogeneous environments. To mitigate this problem, many works been proposed which aim ( i) improve cloud/edge caching efficiency, (ii) use computation power available in on-the-fly transcoding, and (iii) optimize trade-off among various cost parameters, e.g., storage...

UV-B radiation and EOD light (EOD) quality has both signaling and damaging effects based on the dosage and time of exposure. At highland areas UV-B decreases crop productivity and also light quality increase at high elevation area but EOD light quality effect was not researched based on altitude. Therefore, in the present study a field experiment was conducted to investigate the effects of UV-B...

ژورنال: بوم شناسی آبزیان 2016

The aim of this study was to assess the effect of different light intensities and photoperiods on growth, survival, and the yolk sac absorb of the Persian sturgeon, Acipenser persicus, larvae. Larvae were reared from hatching to yolk sac absorb (eight days) at four light intensities (0, 50, 150 and 300 lux) and three photoperiods (00L:24D, 12L:12D and 24L:00D) which consisted of seven treatment...

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