Современные методики выбора функционально значимых элементов радиоэлектронного оборудования воздушных судов

The article discusses the selection of functionally important elements of aircraft avionics using the procedures of MRB and AVPO.В статье рассматривается выделение функционально значимых элементов (ФЗЭ) радиоэлектронного оборудования воздушных судов с использованием процедур MRB и АВПО

Совершенствование программ технического обслуживания воздушных судов при использовании методики MSG-3

This article discusses new approaches to improve the efficiency procedure MSG-3, based on the account of external factors.В статье рассматриваются новые подходы по повышению эффективности методики MSG-3, основанные на учете внешних факторов

Методы неклассической индуктивной логики для поиска причины отказов бортового радиоэлектронного оборудования

The article considers the application of non-classical inductive logic to search for failure causes avionics equipment.В статье рассматривается применение методов неклассической индуктивной логики для поиска причин отказов бортового радиоэлектронного оборудования

MODERN METHODS OF SELECTING MAINTENANCE SIGNIFICANT ITEMS OF AIRCRAFT AVIONICS EQUIPMENT

The article discusses the selection of functionally important elements of aircraft avionics using the procedures of MRB and AVPO

METHODS OF NON-CLASSICAL INDUCTIVE LOGIC FOR SEARCH OF THE REASONS OF FAILURES AVIONICS EQUIPMENT

The article considers the application of non-classical inductive logic to search for failure causes avionics equipment

Inhibition of the activity of mushroom tyrosinase by alkylbenzoic acids

The inhibition kinetics of alkylbenzoic acids on the diphenolase activity of mushroom tyrosinase have been investigated. The results show that the alkylbenzoic acids assayed can lead to reversible inhibition of the enzyme; furthermore, o-toluic acid and m-toluic acid are mixed-type inhibitors and p-alkylbenzoic acids are uncompetitive inhibitors. The inhibition constants have been determined. For these p-alkylbenzoic acids, the inhibition strength follows the order: p-toluic acid < p-ethylbenzoic acid < p-propylbenzoic acid < p-isopropylbenzoic acid < p-tert-butylbenzoic acid < p-butylbenzoic acid < p-pentylbenzoic acid < p-hexylbenzoic acid < p-heptylbenzoic acid < p-octylbenzoic acid, indicating that the hydrophobic p-alkyl group played an important role in the inhibition of the enzyme. The inhibitory effects were potentiated with increasing lengths of the hydrocarbon chains. The inhibitory effects of o-toluic acid and p-isopropylbenzoic acid on the monophenolase activity have also been studied. The results show that both o-toluic acid and p-isopropylbenzoic acid can lengthen the lag time and decrease the steady-state activity of the enzyme. (c) 2004 Elsevier Ltd. All rights reserved