ترکیب ابررسانای بس بلور Nd(CaPr)-123 به روش استاندارد واکنش حالت جامد ساخته شد. مقاومت الکتریکی این ترکیب با روش چهار میله ی استاندارد اندازه-گیری شد و سپس رسانایی اضافی تعیین گردید. رسانایی الکتریکی اضافی ناشی از افت و خیزها با استفاده از مدل...

One of the greatest challenges to production facing dairy farms in the north and north-east of Iran is heat

stress. Climatic conditions in this area are such that warm (or hot) season is relatively long, as generally ...

Plants exhibit a variety of responses during infection by

pathogens, insects, or abiotic stresses, many of which

involve the activation of host defense genes. Activation of

these genes leads to physical ...