Superheater Tube Flat Wall Stationary Temperature Field

The BKZ-220-100-9 steam generator platen superheater tube flat wall stationary temperature fields analysis have been made. The six steel grades, using in boiler fabrication, namely, St. 10, St. 20, 12H1MF, 15HM, 1H18N9T and 12H18N12T, have been used. The temperature curves calculation has been made by using outer and inner surface heat-transfer coefficients nine different combinations

Steel surface TiCrN, TiMoNcoatings structural phase state change features after low-energy alpha particles irradiation

The low-energy alpha particles irradiation impact on structural phase composition and 321S31 steel surface TiCrN and TiMoN coatings morphology have been summarized. The samples irradiation has been carried out in the DTs-60 (the Dubna cyclotron) heavy-ion accelerator by the{4}He{+2} low-energy ions (40 keV) into a 1.0•10{17} ion/cm{2} fluence. It has been established thatthe 321S31 steel alpha particles implantation having energy of 40 keV results in the austenite initial γ-structurepartial transfer, stimulated by the irradiation, to the martensiteα-structure. The low-energy alpha particles irradiation within the fluencies range from 10{16} to 10{17} ion/cm{2} for the TiCrN and TiMoN coatings formed by the ionic bombardment condensation method doesn't result in the phase transfers with a coating crystal lattice type change

Bis(7-meth­oxy-1-methyl-4,9-dihydro-3H-β-carbolinium) tetra­chloridozincate

In the title compound, (C13H15N2O)2[ZnCl4], also known as di(harmalinium) tetra­chloridozincate, the ZnII atom is in a distorted tetrahedral coordination of the chlorido ligands. In the cation, the meth­oxy and methyl groups are both coplanar with with rings to which they are attached [maximum deviations of 0.232 (4) and 0.259 (4) Å, respectively]. In the crystal, the alkaloid cations and metal complex anions inter­act by way of N—H⋯Cl hydrogen bonds involving each Cl atom, resulting in a network structure

THE IMPORTANCE OF USING THE VINEYARD FLOUR AND BETONIES AS A BIOLOGICALLY ACTIVE SUPPLEMENT IN THE DIET OF CATTLE ANIMALS

The article presents the materials of waste and modern enterprises that process agricultural products, thousands of tons processed and primary products from processing. In particular, the waste formed in the process of obtaining the juice and wine from grapes is considered to be a valuable raw material resource which is very rich in biologically active substances and easy, good absorption of this food by animal organisms, the positive impact of biologically active supplement on animal metabolism and the fight against certain diseases are studie