نتایج جستجو برای: c ratio

تعداد نتایج: 1495053  

Journal: :Cement and Concrete Research 2021

Cement and concrete are commonly used in the construction of repository sites for radioactive wastes. The correct isolation those contaminants requires good adsorption low diffusion rates. Both parameters highly affected by many factors, such as pH, temperature or composition. large variability experimental conditions formulations makes it extraordinarily difficult to tackle influence each them...

Journal: :international journal of mining and geo-engineering 0
soghra salehi student mohammad noaparast phd seyed ziaodin shafaie phd

in this research work, the dissolution of chalcopyrite was investigated under atmospheric pressure, with sulfate media at low temperatures, in 30°c to 50°c. in the galvanic interaction between chalcopyrite and pyrite, pyrite is used as a leaching catalyst. effects of different parameters such as temperature, stirring speed, pyrite to chalcopyrite ratio, particle size, and solution potential wer...

In this research work, the dissolution of chalcopyrite was investigated under atmospheric pressure, with sulfate media at low temperatures, in 30°C to 50°C. In the galvanic interaction between chalcopyrite and pyrite, pyrite is used as a leaching catalyst. Effects of different parameters such as temperature, stirring speed, pyrite to chalcopyrite ratio, particle size, and solution potential wer...

ژورنال: اقیانوس شناسی 2011
آبرومند, پرویز, رجبی اسلامی, هومن, فیلی زاده, یوسف, ماشینچیان, علی, کارخانه یوسفی, مهدیه,

Agar extraction for Gracilaria corticata by investigating the effects of various extraction variables such as soaking time, soaking temperature, seaweed to water ratio, extraction temperatures and extraction time and also Alkali treatment method. The results showed that agar yield was significantly affected by all the tested variables. The agar yield was maximized when extraction process was ca...

Journal: :Journal of the Korean Association of Oral and Maxillofacial Surgeons 2016

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