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Introduction. The study presents an approach for detecting and identifying the causes of damage to individual key elements of metal structures of the hydroelectric power plant’s trash-rack structure under anthropogenic dynamic impacts. Strength and hydraulic calculations were performed, as well as modal analysis of the structure. The approach is determined and instrumental measurements of actual dynamic characteristics of the trash-rack structure at different pressures are carried out.Materials and methods. A methodology consisting of two blocks was developed to perform measurements of dynamic anthropogenic impacts. The first block is an instrumental and visual inspection to determine the compliance of structures with design solutions, as well as to identify characteristic defects of the trash-rack structure. The measurement of natural frequencies of vibrations and vibration accelerations of structures at different pressures was carried out using piezoelectric vibration transducers AR90, the measurement of vibration accelerations by seismic receivers A16 and the receiving station MIC-200. The second block is mathematical modelling. The hydraulic regime and the stress-strain state were specified, frequencies and forms of natural vibrations of the structure were determined. Computational studies were carried out in the universal industrial software complex ANSYS Mechanical and ANSYS CFX.Results. The survey revealed the presence of systematically occurring cracks in the load-bearing frame, the mismatch of the position of the struts to the design. Hydrodynamic loads are specified, diameter and frequency of vortex formation are determined. The stresses in the metal struts do not exceed the standard values for the steel used. The performed direct measurement of vibration of structural elements demonstrated that the most dangerous frequency range is 40.30–41.75 Hz.Conclusions. It is revealed that the main cause of damage to the trash-rack structure is the displacement of forced frequencies and the shape of natural oscillations to the zone of operation of hydraulic units, which led to the concentration of stresses at the ends of the struts in the zone adjacent to the gussets. The junction of struts to the gusset had insufficient length, which led to the transfer of stresses to the edge of the gusset and, as a result, to the concentration of stresses and the formation of cracks in the direction of the main stresses in the node.

Объектом нашего изучения стал уникальный раннесредневековый памятник — бронзовый штамп для чеканки лицевой стороны солида Юстиниана I. Он был найден на рубеже 1920-х гг. в западноказахстанских степях, близ станицы Астраханской Уральской губ. В настоящее время этот артефакт хранился в Саратовском областном музее краеведения. Полагаем, что заинтересовавший нас бронзовый штемпель использовался для производства варварских реплик солида Юстиниана I. Они предназначались для насыщения местного обращения, усвоившего византийские монеты как платежные средства в период существования Великого шелкового пути. Выносим результаты нашего изучения этого артефакта на научное обсуждение. / The object of our study was a unique early medieval monument — bronze stamp for embossing the face of the solidus of Justinian I. It was found at the turn of the 1920s. In the West Kazakhstani steppes, near the village of Astrakhan Ural province. At present, this artifact was kept in the Saratov Regional Museum of Local History. We believe that the bronze stamp that interested us was used to produce barbaric remarks of Justinian's solid. They were intended to saturate local circulation, which acquired Byzantine coins as payment means during the Great Silk Road. We bring the results of our study of this artifact to a scientific discussion.

Analytical investigations of workloads of the RUP «BMZ» mill 320 working stands at rolling of fittings of slugs with section 140´140 mm using the system of minimum tension are carried out.

The trial approbation of the various technological circuits rolling-draged, has shown, that most efficient in conditions of rolling laboratory of Institute of black metallurgy is the technological circuit calibring of tapes with use of a priciple of constant width in a combination to transitions in vertical rolls for prevention current of metal in backlashes of calibre and formation lateral salvage.

There is developed the program of calculation of the endless sorted rolling parameters, which is easy adapted for analysis of rolling conditions at section mills of different types with different design-structured composition of the main technological equipment In the mathematical model of the process of the endless sorted rolling, put into basis of this program, there is taken into account more strongly the changing of the temperature field of breakdown bar along the length of the mill and its influence on changing of the stress liquidity in the mill cages and in its intercage spaces.

There are examined the peculiarities of the process of spiral winding for production of steel piston rings at using of new constructions of spiral-winding mashine-tools, working on one-thrust and two-thrust schemas of winding.

С переходом к рыночным отношениям aудиторскaя деятельность получaет все большее рaзвитие. В мировой прaктике aудитор- ский контроль не является новшеством и широко применяется во всех сферaх деятельности. В Кaзaхстaне новым является появление незaвисимого контроля, обеспечивaющего потребности пользовaтелей финaнсовой информaции экономических субъектов в виде подтверждения ее достоверности. В связи с тем, что пользовaтелям финaнсовой информaции необходимa уверенность в aбсолютном кaчестве aудиторского зaключения, подтверждaющего достоверность отчетности, к рaботе aудиторских фирм и aудиторов предъявляются все более жесткие требовaния. Вводятся в действие прaвилa (стaндaрты) aудиторской деятельности, рaзвивaется системa профессионaльного контроля кaчествa рaботы aудиторов, предъявляются дополнительные требовaния к профессионaльной подготовке со стороны госудaрствa. В этих условиях aудиторские фирмы должны больше внимaния уделять вопросaм плaнировaния aудитa, определению aудиторского рискa, существенности возможной ошибки, документировaнию процессa aудитa, рaзрaботке внутрифирменных стaндaртов и методик aудитa. Аудиторлық қызмет күннен-күнге aлaды, нaрықтық қaтынaстaрғa көшуге бaйлaнысты дaмыту. Аудиторлық бaқылaу қызметінің бaрлық сaлaлaрындa жaңaлық болып тaбылмaйды және әлемдік тәжірибеде кеңінен қолдaнылaды. Қaзaқстaндa тәуелсіз бaқылaу пaйдaлaнушылaрдың қaжеттіліктерін қaмтaмaсыз ететін экономикaлық субъектілердің қaржылық aқпaрaтты рaстaу түрінде пaйдa болуы оның дәйектілігі жaңaлық болып тaбылaды. Қaржы aқпaрaтын сенім қaжет ететініне бaйлaнысты пaйдaлaнушылaрғa қойылaтын тaлaптaрдaн неғұрлым қaтaң тaлaптaр қойылaды, жұмысқa және aудиторлaрдың aудиторлық фирмaлaрды есептілік aбсолюттік дұрыстығын рaстaйтын aудиторлық қорытынды ретінде бaрлық аудиторлaрдың кәсіптік дaярлaуғa қойылaтын қосымшa тaлaптaр қойылaды, кәсіби aудиторлық қызмет ережелерін (стaндaрттaр) қолдaнысқa енгізіледі мемлекет тaрaпынaн жұмыс сaпaсынa бaқылaу жүйесі дaмып жaтыр. Осы жaғдaйдa aудиторлық фирмaлaрды жоспaрлaу, әзірлеу, aудиторлық тәуекел aйқындaу, ықтимaл қaтеліктің құжaттaндыру мәселелері көбірек көңіл бөлу керек тиіс aудит стaндaрттaрын және әдістемелерін мaңыздылығынa фирмaішілік aудит процесін жүргізу.

The article is dedicated to the life and work of the Russian Neo-Kantianist Gavriil Gordon. The author addresses archive material and the memoires of Gavriil Gordon's children, which allow reconstructing certain episodes of his creative work.