371 research outputs found
ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡ ΠΎΠ΄Π½ΡΡ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π² ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΠΌ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ
Assessment of the environmental and economic performance of a safety valve requires information about the flow of the substance through the valve when it is actuated. The goal of this paper was to determine the flow rate of the discharged substance and the mass flow rate of the substance entering the safety valve when it is actuated. Proposed a mathematical model to describe the processes occurring in the valve. The model includes a system of differential equations describing the physical laws of conservation in the internal volume of the valve and differential equations, which link the value of gas flow through the valve with the pressure and the amount of movement of the shut-off disk. Used a modified method by S.K. Godunov to solve gasdynamic equations. Established that the determination of the flow and power characteristics of the valve requires the preliminary construction of a mathematical model of the safety valve operation. Based on this, proposed a method for determining the flow rate of the discharged substance and the mass rate of the substance entering the safety valve when it is actuated. Obtained the flow characteristics of the valves under review and the dynamics of movement of the shutoff disc of the valve, as well as the dependence of the pressure change on the opening time of the valve. Comparison of the calculated values with available experimental data gives good agreement of results (no more than 5.6 % for a gas flow rate, under 10 % for the movement of the valve and change the arrival of gas in time using the standard deviation function of the flow characteristics of 0.6 %), confirms the correctness of the defined mathematical model, used numerical schemes and algorithms, as well as the proposed method and recoverability of the arrival of gas in a pressureβtime curve
Impact of Industry 4.0 on the economy and production
The difficulties and problems faced by economic entities, countries and regions, in general, on the way to implementing the achievements and developments of Industry 4.0 have been designated in the article. Special attention has been paid to economic and production aspects, as well as changes in the relevant systems in the context of radical technological transformations. In particular, it has been established that markets are becoming oligopolistic, the role and importance of medium and small businesses is significantly increasing, the problems of social inequality and tension in connection with growing unemployment and the need for highly qualified personnel are becoming more acute. In addition, the features of competition for technologies, investments, sales markets, territories of productive forces location have been highlighted. Attention has also been focused on the main βrevolutionaryβ trends in industrial development associated with the launch of the innovation and technological cycle initiated by βIndustry 4.0β. Specific actions and measures have been identified to implement these trends into reality
Efficient Model Learning for Human-Robot Collaborative Tasks
We present a framework for learning human user models from joint-action
demonstrations that enables the robot to compute a robust policy for a
collaborative task with a human. The learning takes place completely
automatically, without any human intervention. First, we describe the
clustering of demonstrated action sequences into different human types using an
unsupervised learning algorithm. These demonstrated sequences are also used by
the robot to learn a reward function that is representative for each type,
through the employment of an inverse reinforcement learning algorithm. The
learned model is then used as part of a Mixed Observability Markov Decision
Process formulation, wherein the human type is a partially observable variable.
With this framework, we can infer, either offline or online, the human type of
a new user that was not included in the training set, and can compute a policy
for the robot that will be aligned to the preference of this new user and will
be robust to deviations of the human actions from prior demonstrations. Finally
we validate the approach using data collected in human subject experiments, and
conduct proof-of-concept demonstrations in which a person performs a
collaborative task with a small industrial robot
ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡ ΠΎΠ΄Π½ΡΡ Ρ Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ Π² ΡΠ΅Ρ Π½ΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠ°Ρ Ρ ΠΊΠΎΠ½ΡΡΠΎΠ»ΠΈΡΡΠ΅ΠΌΡΠΌ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ
Assessment of the environmental and economic performance of a safety valve requires information about the flow of the substance through the valve when it is actuated. The goal of this paper was to determine the flow rate of the discharged substance and the mass flow rate of the substance entering the safety valve when it is actuated.Proposed a mathematical model to describe the processes occurring in the valve. The model includes a system of differential equations describing the physical laws of conservation in the internal volume of the valve and differential equations, which link the value of gas flow through the valve with the pressure and the amount of movement of the shut-off disk. Used a modified method by S.K. Godunov to solve gasdynamic equations.Established that the determination of the flow and power characteristics of the valve requires the preliminary construction of a mathematical model of the safety valve operation. Based on this, proposed a method for determining the flow rate of the discharged substance and the mass rate of the substance entering the safety valve when it is actuated.Obtained the flow characteristics of the valves under review and the dynamics of movement of the shutoff disc of the valve, as well as the dependence of the pressure change on the opening time of the valve. Comparison of the calculated values with available experimental data gives good agreement of results (no more than 5.6 % for a gas flow rate, under 10 % for the movement of the valve and change the arrival of gas in time using the standard deviation function of the flow characteristics of 0.6 %), confirms the correctness of the defined mathematical model, used numerical schemes and algorithms, as well as the proposed method and recoverability of the arrival of gas in a pressureβtime curve.ΠΡΠ΅Π½ΠΊΠ° ΡΠΊΠΎΠ»ΠΎΠ³ΠΈΡΠ½ΠΎΡΡΠΈ ΠΈ ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡΠ½ΠΎΡΡΠΈ ΡΠ°Π±ΠΎΡΡ ΠΏΡΠ΅Π΄ΠΎΡ
ΡΠ°Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠ»Π°ΠΏΠ°Π½Π° ΡΡΠ΅Π±ΡΠ΅Ρ ΠΈΠ½ΡΠΎΡΠΌΠ°ΡΠΈΠΈ ΠΎ ΡΠ°ΡΡ
ΠΎΠ΄Π΅ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΡΠ΅ΡΠ΅Π· ΠΊΠ»Π°ΠΏΠ°Π½ ΠΏΡΠΈ Π΅Π³ΠΎ ΡΡΠ°Π±Π°ΡΡΠ²Π°Π½ΠΈΠΈ. Π¦Π΅Π»ΡΡ Π΄Π°Π½Π½ΠΎΠΉ ΡΠ°Π±ΠΎΡΡ ΡΠ²Π»ΡΠ»ΠΎΡΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ°ΡΡ
ΠΎΠ΄Π° ΡΠ±ΡΠ°ΡΡΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΠΈ ΠΌΠ°ΡΡΠΎΠ²ΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΏΠΎΡΡΡΠΏΠ»Π΅Π½ΠΈΡ Π²Π΅ΡΠ΅ΡΡΠ²Π° Π² ΠΏΡΠ΅Π΄ΠΎΡ
ΡΠ°Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ ΠΊΠ»Π°ΠΏΠ°Π½ ΠΏΡΠΈ Π΅Π³ΠΎ ΡΡΠ°Π±Π°ΡΡΠ²Π°Π½ΠΈΠΈ.ΠΠ»Ρ ΠΎΠΏΠΈΡΠ°Π½ΠΈΡ ΠΏΡΠΎΡΠ΅ΡΡΠΎΠ², ΠΏΡΠΎΡΠ΅ΠΊΠ°ΡΡΠΈΡ
Π² ΠΊΠ»Π°ΠΏΠ°Π½Π΅, ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠ°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ, Π²ΠΊΠ»ΡΡΠ°ΡΡΠ°Ρ ΡΠΈΡΡΠ΅ΠΌΡ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΡ
ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ, ΠΎΠΏΠΈΡΡΠ²Π°ΡΡΠΈΡ
ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΠΈΠ΅ Π·Π°ΠΊΠΎΠ½Ρ ΡΠΎΡ
ΡΠ°Π½Π΅Π½ΠΈΡ Π²ΠΎ Π²Π½ΡΡΡΠ΅Π½Π½Π΅ΠΌ ΠΎΠ±ΡΡΠΌΠ΅ ΠΊΠ»Π°ΠΏΠ°Π½Π° ΠΈ Π΄ΠΈΡΡΠ΅ΡΠ΅Π½ΡΠΈΠ°Π»ΡΠ½ΡΠ΅ ΡΡΠ°Π²Π½Π΅Π½ΠΈΡ, ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΠΈΠ΅ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ°ΡΡ
ΠΎΠ΄Π° Π³Π°Π·Π° ΡΠ΅ΡΠ΅Π· ΠΊΠ»Π°ΠΏΠ°Π½ Ρ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅ΠΌ ΠΈ Π²Π΅Π»ΠΈΡΠΈΠ½ΠΎΠΉ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π·Π°ΠΏΠΎΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΡΠΊΠ°. ΠΠ»Ρ ΡΠ΅ΡΠ΅Π½ΠΈΡ Π³Π°Π·ΠΎΠ΄ΠΈΠ½Π°ΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΉ ΠΏΡΠΈΠΌΠ΅Π½ΡΠ»ΡΡ ΠΌΠΎΠ΄ΠΈΡΠΈΡΠΈΡΠΎΠ²Π°Π½Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ Π‘.Π. ΠΠΎΠ΄ΡΠ½ΠΎΠ²Π°.Π£ΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΎ, ΡΡΠΎ ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡ
ΠΎΠ΄Π½ΠΎΠΉ ΠΈ ΡΠΈΠ»ΠΎΠ²ΠΎΠΉ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ ΠΊΠ»Π°ΠΏΠ°Π½Π° ΡΡΠ΅Π±ΡΠ΅Ρ ΠΏΡΠ΅Π΄Π²Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΏΠΎΡΡΡΠΎΠ΅Π½ΠΈΡ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΡΡΠ½ΠΊΡΠΈΠΎΠ½ΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠ΅Π΄ΠΎΡ
ΡΠ°Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ³ΠΎ ΠΊΠ»Π°ΠΏΠ°Π½Π°. ΠΠ° ΠΎΡΠ½ΠΎΠ²Π°Π½ΠΈΠΈ ΡΠ΅Π³ΠΎ ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½ΠΈΡ Π²Π΅Π»ΠΈΡΠΈΠ½Ρ ΡΠ°ΡΡ
ΠΎΠ΄Π° ΡΠ±ΡΠ°ΡΡΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ Π²Π΅ΡΠ΅ΡΡΠ²Π° ΠΈ ΠΌΠ°ΡΡΠΎΠ²ΠΎΠΉ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΏΠΎΡΡΡΠΏΠ»Π΅Π½ΠΈΡ Π²Π΅ΡΠ΅ΡΡΠ²Π° Π² ΠΏΡΠ΅Π΄ΠΎΡ
ΡΠ°Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ ΠΊΠ»Π°ΠΏΠ°Π½ ΠΏΡΠΈ Π΅Π³ΠΎ ΡΡΠ°Π±Π°ΡΡΠ²Π°Π½ΠΈΠΈ.ΠΠΎΠ»ΡΡΠ΅Π½Ρ ΡΠ°ΡΡ
ΠΎΠ΄Π½ΡΠ΅ Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊΠΈ ΡΠ°ΡΡΠΌΠ°ΡΡΠΈΠ²Π°Π΅ΠΌΡΡ
ΠΊΠ»Π°ΠΏΠ°Π½ΠΎΠ² ΠΈ Π΄ΠΈΠ½Π°ΠΌΠΈΠΊΠ° ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΡ Π·Π°ΠΏΠΎΡΠ½ΠΎΠ³ΠΎ Π΄ΠΈΡΠΊΠ° ΠΊΠ»Π°ΠΏΠ°Π½Π°, Π° ΡΠ°ΠΊΠΆΠ΅ Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΡ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ Π΄Π°Π²Π»Π΅Π½ΠΈΡ ΠΎΡ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΎΡΠΊΡΡΡΠΈΡ ΠΊΠ»Π°ΠΏΠ°Π½Π°. Π‘ΠΎΠΏΠΎΡΡΠ°Π²Π»Π΅Π½ΠΈΠ΅ ΡΠ°ΡΡΡΡΠ½ΡΡ
Π·Π½Π°ΡΠ΅Π½ΠΈΠΉ Ρ ΠΈΠΌΠ΅ΡΡΠΈΠΌΠΈΡΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠΌΠΈ Π΄Π°Π½Π½ΡΠΌΠΈ Π΄Π°ΡΡ Ρ
ΠΎΡΠΎΡΠ΅Π΅ ΡΠΎΠ²ΠΏΠ°Π΄Π΅Π½ΠΈΠ΅ (Π½Π΅ Π±ΠΎΠ»Π΅Π΅ 5,6 % Π΄Π»Ρ ΡΠ°ΡΡ
ΠΎΠ΄Π° Π³Π°Π·Π°, ΠΌΠ΅Π½Π΅Π΅ 10 % Π΄Π»Ρ ΠΏΠ΅ΡΠ΅ΠΌΠ΅ΡΠ΅Π½ΠΈΡ ΠΊΠ»Π°ΠΏΠ°Π½Π° ΠΈ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΏΡΠΈΡ
ΠΎΠ΄Π° Π³Π°Π·Π° Π²ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ ΠΏΡΠΈ ΡΡΠ΅Π΄Π½Π΅ΠΊΠ²Π°Π΄ΡΠ°ΡΠΈΡΠ½ΡΡ
ΠΎΡΠΊΠ»ΠΎΠ½Π΅Π½ΠΈΡΡ
ΡΡΠ½ΠΊΡΠΈΠΈ ΡΠ°ΡΡ
ΠΎΠ΄Π½ΡΡ
Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠΈΡΡΠΈΠΊ 0,6 %) ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΠΎΠ², ΠΏΠΎΠ΄ΡΠ²Π΅ΡΠΆΠ΄Π°Π΅Ρ ΠΊΠΎΡΡΠ΅ΠΊΡΠ½ΠΎΡΡΡ ΡΡΠΎΡΠΌΡΠ»ΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΌΠ°ΡΠ΅ΠΌΠ°ΡΠΈΡΠ΅ΡΠΊΠΎΠΉ ΠΌΠΎΠ΄Π΅Π»ΠΈ, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
ΡΠΈΡΠ»Π΅Π½Π½ΡΡ
ΡΡ
Π΅ΠΌ ΠΈ Π°Π»Π³ΠΎΡΠΈΡΠΌΠΎΠ², ΠΏΡΠ΅Π΄Π»ΠΎΠΆΠ΅Π½Π½ΠΎΠΉ ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠΈ ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ Π²ΠΎΡΡΡΠ°Π½ΠΎΠ²Π»Π΅Π½ΠΈΡ ΠΏΡΠΈΡ
ΠΎΠ΄Π° Π³Π°Π·Π° ΠΏΠΎ ΠΊΡΠΈΠ²ΠΎΠΉ Π΄Π°Π²Π»Π΅Π½ΠΈΠ΅βββΠ²ΡΠ΅ΠΌΡ
The phenomenon of multiculturalism in the regional strategizing
The purpose of the article is to justify the possibility of the modernizing development of the region based on the rational use of the potential of a mixed economy of its territories. In contrast to the existing ideas about multiculturalism as a problem, demonstrating the structural imbalances in the economy of the region, the authors view it as a phenomenon that allows the region to provide a competitive advantage. The methodological base of this study is the convergence of the system, synergistic, institutional and endogenous approaches, and sharing a number of theories - growth poles, territorial industrial clusters, balanced development. The article shows the role of the institutional environment in realizing the potential of a diversified economy in the region. It formulates conceptual positions of the mechanism of regional strategizing aimed at the development of relations between territories with the different types of lifestyles. The basis of the interactions is the consensus of economic interests, compromise of competitive aspirations and market positions of the entities as equal partners. It is concluded that there is the need to change the existing system of regional strategizing in terms of strengthening its focus on the formation of the institutional channels for the communication of corporate, small-scale and farm structures. The recommendations on the potential of the mixed economy of the regions were used in the development of the Strategy of investment development for the Rostov region until 2020
Ethnic stereotypesβ reflection by means of modern cinematography
The aim of the research work is to identify the specifics of auto and hetero stereotypes about Americans and Russians on the example of modern cinema in the USA and Russia. It is established that the specificity of ethnic stereotypes represented by modern films of the USA and Russia depends on the culture of the society, the conditions of its development, the depth of contacts between ethnic groups in the process of historical developmen
Genome sequences of Acholeplasma laidlawii strains differing in sensitivity to ciprofloxacin
Β© 2017 Medvedeva et al. Acholeplasma laidlawii is a well-suited model for study of the molecular basis of the adaptation of mollicutes to environmental conditions. Here we present the whole-genome sequences of four strains of A. laidlawii with differential sensitivity to ciprofloxacin
A study of alcohol consumption by persons of working to grow in Sverdlovsk region
The results of the study of alcohol consumption by workers of working age of the Sverdlovsk region will reveal the main motives of alcohol consumption, the age interval of initiation to alcohol and their awareness of the dangers of alcoholismΠ Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΡΡΠ΅Π±Π»Π΅Π½ΠΈΡ Π°Π»ΠΊΠΎΠ³ΠΎΠ»Ρ ΡΠ°Π±ΠΎΡΠ½ΠΈΠΊΠ°ΠΌΠΈ ΡΡΡΠ΄ΠΎΡΠΏΠΎΡΠΎΠ±Π½ΠΎΠ³ΠΎ Π²ΠΎΠ·ΡΠ°ΡΡΠ° Π‘Π²Π΅ΡΠ΄Π»ΠΎΠ²ΡΠΊΠΎΠΉ ΠΎΠ±Π»Π°ΡΡΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΡ Π²ΡΡΠ²ΠΈΡΡ ΠΎΡΠ½ΠΎΠ²Π½ΡΠ΅ ΠΌΠΎΡΠΈΠ²Ρ ΡΠΏΠΎΡΡΠ΅Π±Π»Π΅Π½ΠΈΡ Π°Π»ΠΊΠΎΠ³ΠΎΠ»Ρ, Π²ΠΎΠ·ΡΠ°ΡΡΠ½ΠΎΠΉ ΠΈΠ½ΡΠ΅ΡΠ²Π°Π» ΠΏΡΠΈΠΎΠ±ΡΠ΅Π½ΠΈΡ ΠΊ Π°Π»ΠΊΠΎΠ³ΠΎΠ»Ρ ΠΈ ΠΈΠ½ΡΠΎΡΠΌΠΈΡΠΎΠ²Π°Π½Π½ΠΎΡΡΠΈ ΠΈΡ
ΠΎ Π²ΡΠ΅Π΄Π΅ Π°Π»ΠΊΠΎΠ³ΠΎΠ»ΠΈΠ·Π°ΡΠΈΠΈ
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