Modeling the Propagation of Elastic Ultrasonic Waves in Isotropic and Anisotropic Materials when Excited by Various Sources

Khon, H.; Bashkov, O. V.; Золотарева, С. В.; Solovev, Denis B.

doi:10.4028/www.scientific.net/msf.945.926

Cited by 23 publications

(9 citation statements)

References 14 publications

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“…The types of sources and geometric characterize the form of wave propagation at a certain distance of its registration. Therefore, using these features of high frequency, the author reported in work [16,17] to classify and identify different types of sources. By the nature of acoustic emission phenomenon, can be used the features of the propagated elastic waves and the main parameters of registered acoustic signals, such as peak signal amplitude, rise-time, average frequency, the count of activities and the energy to characterize damage.…”

Section: Fareastcon -Materials and Construction IImentioning

confidence: 99%

Failure Analysis of Polymer Blinder Using Acoustic Emission Method

Khon

Bashkov

Bryansky

et al. 2020

MSF

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In this work the features of the propagation of the acoustic waves in the matrix sample (DERAKANE 411-350 epoxy vinyl ester resin) by the source pencil lead break (PLB) with different places and extract the feature of the registered AE parameters from the tensile test were studied. Using the typical features of the AE signals such as the frequency characteristic and the energy of the signals for classify and characterize the AE source in both PLB and tensile test. By analyzing the features of the AE signals based on the continuous wavelet transform, the features of the high frequency and the energy of the signal can be used to characterize the AE source, which is useful to establish relation between the characteristics of acoustic signals and the parameter of the fracture of structure in the material.

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Section: Fareastcon -Materials and Construction IImentioning

confidence: 99%

Failure Analysis of Polymer Blinder Using Acoustic Emission Method

Khon

Bashkov

Bryansky

et al. 2020

MSF

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“…Certification provides not only psychological comfort of the management personnel, but also the confidence of the employee in his own abilities. It also increases the attention of the management personnel at the enterprise, the trust and respect to the certificate holders [24,25].…”

Section: The Essence Of Management Personnel Certificationmentioning

confidence: 99%

Formation and Functioning of the Management Personnel Certification System

Митрофанова¹,

Mezhevov²,

Anikeeva³

2020

Proceedings of the International Scientific Conference "Far East Con" (ISCFEC 2020)

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The article is devoted to the problems of formation and functioning of the management personnel certification system. The relevance of the topic is stipulated by the fact that the present period of the economic development of Russia requires a particularly careful approach to the assessment of the quality of personnel and the ability to manage the work of personnel with maximum quality. So, organizational and methodological aspects of certification of management personnel, with the help of which it is possible to choose employees more carefully and subsequently coordinate the activities of the entire enterprise, become very important. On the basis of the analysis of modern approaches, the authors' definition of management personnel certification was proposed. The structure of the management personnel certification system was formed, which includes such elements as qualification requirements for the employee; educational programmes of professional development made in accordance with the qualification requirements; qualification assessment systems developed in accordance with the educational programme of advanced training and qualification requirements; employee qualification monitoring system and the system of assessment of the certification system.

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“…The actual direction of modification of building materials is the use of plasma technologies [23][24][25]. This work is a continuation of previously initiated studies on the modification of sorbents based on natural zeolites and bentonites [26][27][28]. The purpose of the work is to study the effect of low temperature plasma on the sorption capacity of diatomaceous earth.…”

Section: Introductionmentioning

confidence: 99%

Activation of Diatomaceous Earth Low-Temperature Plasma

Bruyako

Grigoryeva

2020

MSF

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In residential and industrial buildings, a special air environment is formed, which contains gas shaped toxic chemical compounds. A significant part of such substances comes from finishing polymer containing materials. Virtually all polymeric materials release certain toxic chemical compounds into the air. The methods and methods of air cleaning are different. One of the ways to solve the problem associated with providing the required standards for the quality of indoor air is the development and use of new efficient building materials using aggregates that have a high sorption capacity. The paper presents the results of a study of the effect of low temperature non-equilibrium plasma on the sorption characteristics of aggregates based on diatomite earth. Studies have been conducted on samples of natural diatomite and quartz sand. When activated by low temperature nonequilibrium plasma, the structure changes, which leads to an increase in the sorption characteristics of the samples under study.

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Modeling the Propagation of Elastic Ultrasonic Waves in Isotropic and Anisotropic Materials when Excited by Various Sources

Cited by 23 publications

References 14 publications

Failure Analysis of Polymer Blinder Using Acoustic Emission Method

Failure Analysis of Polymer Blinder Using Acoustic Emission Method

Formation and Functioning of the Management Personnel Certification System

Activation of Diatomaceous Earth Low-Temperature Plasma

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