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Kochenov V.A.,Nizhni Novgorod State Agricultural Academy | Goeva V.V.,Nizhni Novgorod State Engineering and Economics Institute | Grishin N.E.,Nizhni Novgorod State Engineering and Economics Institute | Kazakov S.S.,Nizhni Novgorod State Engineering and Economics Institute
Russian Engineering Research | Year: 2013

Analysis of the restoration of piston engines demonstrates the influence of the shape of surfaces in the frictional pair on the life and wear of the frictional coupling. The variation in gas pressure within the cylinders is established. The method of measuring the compression ratio is improved. © 2013 Allerton Press, Inc. Source


Kochenov V.A.,Nizhni Novgorod State Agricultural Academy
Russian Engineering Research | Year: 2013

Means are proposed for improving the life and wear resistance of frictional joints in piston engines, with allowance for the patterns of wear and the load distribution in the course of operation. © 2013 Allerton Press, Inc. Source


Semenov V.V.,Russian Academy of Sciences | Zolotareva N.V.,Russian Academy of Sciences | Petrov B.I.,Russian Academy of Sciences | Baranov E.V.,Russian Academy of Sciences | And 5 more authors.
Russian Journal of General Chemistry | Year: 2015

Multifold enhancement of solubility in water of Fe(III) and Mn(II) complexes with (1-hydroxyethylidene) diphosphonic acid has been achieved by their transformation into the corresponding salts via interaction of aqueous suspensions of the poorly soluble complexes with 2-aminoethanol and 2-amino-2-(hydroxymethyl)propane-1,3-diol. Molecular structure of tris(2-hydroxyethanaminium)(1-hydroxyethylidene)-diphosphonate has been determined. Potential agricultural efficiency of the prepared iron and manganese derivatives as well as zinc and copper complexes with (1-hydroxyethylidene)diphosphonic acid as a microfertilizer has been estimated. © 2015 Pleiades Publishing, Ltd. Source

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