temperature and precipitation are among important atmospheric parameters for watershed planning. assessment of temperature and precipitation trends is very important for future watershed planning. in this paper, trends of atmospheric parameters such as seasonal and annual temperature and precipitation were examined for the synoptic stations of bandar anzali, rasht, ramsar, babolsar and gorgan. ...

The roasting coffee process is the compilation of time-temperature-dependent physical and chemical transformations induced by heat. Through study time-temperature curve, correct definition degree an area active non-trivial research, which intervenes in obtaining consistent profiles reflected acceptability drink perceived consumers. This paper used methodology response surfaces (RSM) with c...

The present investigation was conducted to study the true retentions of α-tocopherol, tocotrienols and β-carotene in crown daisy, unripe hot pepper, onion, garlic, and red pepper as affected by various domestic cooking methods, those were, boiling, baking, stir-frying, deep-frying, steaming, roasting, and microwaving. Fatty acid compositions were determined by GC, and HPLC were used for quantif...

In this study, a combined process consisting of salt roasting and acid leaching was conducted to recover copper per sulphide concentrate with 43.5% chalcopyrite. The chalcopyrite roasted in the absence presence potassium chloride (mass ratio concentrate:KCl from 1:0.5 1:0.9) at various temperatures (400-600°C) different times (1-4 hours) under air atmosphere. dissolved sulphuric solution (60 g/...

Coffee is one of mankind's most popular beverages obtained from green coffee beans by roasting. Much effort has been expended towards the chemical characterisation of the components of the roasted coffee bean, frequently termed melanoidines, which are dominated byproducts formed from its most relevant secondary metabolites - chlorogenic acids. However, impeded by a lack of suitable authentic re...

to evaluate the effect of roasting and dutching processes on the stability of b-aflatoxins (afb1+afb2), experimental units of cocoa beans contaminated with aflatoxin at a concentration of 220.7 ng g-1 were roasted at 250ºc for 15 minutes. roasting conditions caused a notable reduction in the aflatoxin content (up to 71%). the resulting cocoa liquors contaminated with 63.9 ng g-1 were thermal-al...

Nano-CuFe2O4 catalysts with different Cu/Fe molar ratios (CunFemO(n+1.5m)) were prepared by hydrothermal method. The thermal decomposition performance of CunFemO(n+1.5m) on CuSO4 were determined with TG-DSC method to evaluate its catalytic activity and the roasted product was characterized by ...

The recovery of rare earth elements (REEs) from secondary resources, particularly coal-based materials, has recently received attention due to supply and demand imbalance. Research reported date indicates that a high REE can be realized when treating bituminous coal sources using strong acid solutions approximately100 g/L or higher. This study introduces an approach enhance the total (TREE), es...