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2.435  Articles
1 of 245 pages  |  10  records  |  more records»
The use of sound absorbers on many ships made from glass wool. Glass wool has a negative impact on health, which can irritate the skin and disrupt the respiratory system. Therefore, it is necessary to have an alternative sound insulation material that is ... see more

Gelatin is a soluble protein that acts as a gelling agent and is commonly used as an ingredient in both food and non-food production. Since bone is composed of collagen fibers, it can be used as a raw material for gelatin production. Beef bone is a waste ... see more

Biodiesel is an alternative fuel produced from vegetable oils such as soybean oil by the method of transesterification with the help of catalysts. This research uses a heterogeneous catalyst, CaO which is derived from an eggshell through a calcination pro... see more

Geopolymer as a Portland cement substitute had been synthesized from alkaline activation of co-combustion residuals of bamboo and kaolin. Types of used alkaline activators were NaOH solution, KOH solution, a mixture of NaOH solution-water glass, and a mix... see more

Tuna fish skin is an untapped waste properly and it contains collagen that can be made of gelatin manufacture of gelatin from fish skin tuna using alkaline process (NaOH) , with the object of knowing the yield of fish skin gelatin tuna (Thunnus albacares)... see more

In this work different amount of acidic (HCl) and alkaline (NaOH) solutions were added to stoke solutions of K2CrO4 and K2Cr2O7 to show the effect of pH values on their spectra. The results of UV-Visible spectroscopy shows that, the Changing of solution p... see more

Research on marine natural resources as an excipient material of pharmaceutical product is still rare. One of the marine products is the green algae, Cladophora sp. High cellulose content causes Cladophora sp. which can be used as an alternative material ... see more

In this article an attempt to fibrillate aspen bleached chemi-thermo mechanical pulp (BCTMP) fibre in an environmentally friendly way is reported. The effects of various NaOH, KOH, urea and ethanol aqueous solutions at lowered temperature were tested for ... see more

In this work different amount of acidic (HCl) and alkaline (NaOH) solutions were added to stoke solutions of K2CrO4 and K2Cr2O7 to show the effect of pH values on their spectra. The results of UV-Visible spectroscopy shows that, the Changing of solution p... see more

1 of 245 pages  |  10  records  |  more records»