Abstract The manganese-boron alloy 22MnB5 is particularly used for structural and safety-relevant parts in the automotive industry. Parts made from this are usually produced using hot forming process. Here, sheet heated to over 950 °C an industrial roller hearth furnace. then simultaneously formed quenched a cooled tool with temperature gradient of more than 27 K/s. This leads formation martens...

The possibility of applying membrane distillation to support the fermentation process was investigated. The capillary polypropylene membranes were assembled in the membrane modules. The studies were carried out using the standard solutions containing the compounds frequently occurring in the broths such as ethanol, citric, acetic and lactic acids, glycerol and 1,3-propanediol. The performance o...

ferula persica, is the well-known species of the genus ferula in iran and has two varieties: persica and latisecta. they have both been extensively used in traditional medicine for a wide range of ailments. a great number of chemical compounds including sesquiterpene coumarins and polysulfides have been isolated from this plant. fresh plant materials, crude extracts and isolated components of f...