Penelitian tentang waktu optimal untuk proses pengeluaran gas (degassing) pada cetakan karet silicon telah dilakukan di Laboratorium Perhiasan Balai Besar Kerajinan dan Batik Yogyakarta pada tahun 2009.Untuk mendapatkan cetakan karet yang sempurna Bumper dibutuhkan kondisi karet yang terbebas dari rongga udara di dalamnya.Sehingga membutuhkan prose
The study investigates the effect of carbon nanotubes on chloride penetration in nano-modified mortars and reports on the physical, electrical, and mechanical performance of the material.Mortars were artificially corroded and their surface electrical surface conductivity as well as flexural and compressive strength were measured.The influence of va
Abstract Increased atmospheric CO2 is driving ocean acidification (OA), and potential changes in marine ecosystems.Research shows that both Ashtrays planktonic and benthic communities are affected, but how these changes are linked remains unresolved.Here we show experimentally that decreasing seawater pH (from pH 8.1 to 7.8 and 7.4) leads to reduce