Summary: The article is devoted to the study of the bearing capacity of thin-walled elements of designs at creep. In this case the ambient temperature and the pressure on the rod assumed to be constant, that is not changing in the time. At the end of the article shows the formula to determine the allowable stress on the rod at a corrosion and creep.
Key words: corrosion, thin-walled rod, creep, cylinder, load bearing capacity.
Аннотация: Цель данной работы - рассмотреть алгоритм расчета балки на основе математической модели с учетом физической нелинейности.
Ключевые слова: изгиб, физическая нелинейность, балка.
Summary. The investigations pertain to the field of applied mechanics and address the effect of acoustic pressure waves on underwater vehicle during its start. The differential equation of motion of an underwater object is given in a simplified form. We analyze the case of forced motion of an underwater vehicle of arbitrary shape during its translational and angular motion in three axes.
Keywords: moving, liquid, acoustic pressure wave, underwater vehicle.
Summary. Nature of origin of additional errors opens up at the pickoffs of gyrostabilized platform in the acoustic fields. The analytical ground of degree of influence of penetrable acoustic radiation is built on resiliently deformed consisting of podvesa of gyroscope of the mode of the operating use of aircrafts.
Keywords: float gyroscope, wave coincidence, shpangout, wavefront.
Summary. We propose to apply the two-stage cluster approach for the investigation of the dynamics in emissions of the most common pollutants into the atmosphere in Lviv region. The mathematical model was described. The implementation of the proposed approach was performed in the Matlab 7.10.0 environment and the results were presented.
Кеу words: clustering, k-means algorithm, Kohonen’s self-organizing maps, the atmosphere air, emissions of pollutants.
Actual problems of modern science: Abstracts of XІІ International scientific-practical conference (Moscow - Astana - Kharkiv - Vienna, October 28, 2016)
Summary: The article is dedicated to the research of biotechnical systems. The selected method of study takes into consideration in what extend the viewed bio objects being objectively evaluated. It is proposed to use optimal control method for this purpose. Once the parameters of biotechnical system are determined, the most effective control is being ensured which maximizes optimization criteria. Depending on the nature of admissible multitude the problems of mathematical programming are being solved. The results of findings are being analysed.
Keywords: bio-objects; biotechnical system; optimal system; optimal control.
Annotation: The article, based on an analysis of existing light sources used in industrial, civil and residential buildings, the study shows the noise characteristics and the electromagnetic radiation of low pressure fluorescent lamps.
Key words: light, fluorescent lamp, lighting, the frequency spectrum of the radiation, noise, electromagnetic radiation measurement range.
Abstract. In this article the Ukrainian market of online retail, problems and prospects. The analysis of options for ordering fulfilment centers or retail outlets. Built close to optimal heuristic model for processing large amounts of client orders to minimize the total number of shipments. Investigated the feasibility of these models for seasonal and irregular online stores. Based on the research presented possible potential savings by solving heuristic algorithms of multiple data requests from a large online store. Demonstrated better results by using them.
Keywords: e-commerce, website, online store, heuristic approach.
Summary: The article presents the program scripts written using Scapy network utility designed to test computer networks and conduct cyber attacks to further their prevention.
Key words: Computer networks, information security, testing, Python, Scapy.
Summary. The article deals with rational way of determining the oblique compressed reinforced concrete elements deflection, based on the direct use of curvature function of the generalized phase diagram.
Keywords: reinforced concrete, oblique compression, elements, structures, deformation, stiffness, curvature, deflections.
Summary: In the paper modern playpens constructions, which is designed to create a specific skills or abilities in childhood, are analyzed. Established presence and degree of influence of Coriolis acceleration on the formation sided driving ability of upper and lower extremities during the development of children. The construction of playpen, which provides a full and harmonious development of the child, is purposed.
Keywords: playpen, Coriolis acceleration, left-handed, right-hand limbs, Coriolis force of inertia.
Summary. The paper presents the results of research of the activities of organizational and technological factors on the duration of the installation in concrete chemical anchors with acrylic compositions.
Keywords: anchor, acrylic composition, factor, imitating model, expert assessment.
Summary: Covering modern problems of hacker attacks on web applications. Giving detailed description of such attacks as dangerous redirections and links, attacks related on the user sessions manipulations and SQL injections. Examples include implementation on such programming languages as Java, PHP, C# and Ruby.
Key words: Internet network, hacker, application security, software, browser, host dangerous redirect, links, SQL injection, database.
Summary: At present, the possibility of improving the efficiency of production of enterprises automation of technological processes practically exhausted. Future prospects of modern enterprises connected with the development of intelligent automatic systems of the new generation. The basis of these systems is a new concept of automation of management processes.
Key words: automation of control, automation of control processes, possibilities of automatic control.
Summary: The salient image feature detection task is one of the central problem of image processing. This paper presents the improvement of the developed by the author the vertex detection algorithm in image processing based on approximation of binary image contour by vector. For example, new rules on approximation with given accuracy of binary image contour by directed segments were developed to more accurately and quickly effective detection of the vertex. Brief emphasis on main image salient feature detection algorithms provided. The comparative evaluation of these algorithms carried out.
Keywords: image segmentation, contour analysis, image object, salient image feature, the vertex.
Summary: The article describes peculiarities of electronic document management of technical documentation of railway automatics and telemechanics. The questions of intellectualization of control processes on the basis of a synthesis of mathematical descriptions of electronic document management of technical documentation of railway automatics and telemechanics. The article describes the formalized representation of electronic document management of technical documentation of railway automatics and telemechanics.
Keywords: high-speed traffic, intellectualization control, railway automatics and telemechanics, electronic document management, technical documentation, formal methods and models.
Summary: the method of synthesis of a discontinuous field-oriented control of asynchronous electric drive with active damping vibration of an elastic transmission devices
Key words: synthesis, mathematical model, transfer device controller, elastic vibrations, damping, contour regulation, field oriented control, sliding mode.
Summary: We consider the methodology of the use of parallel processing techniques in smart- cameras. A method for splitting video processing algorithms for data streams of commands that can be executed in parallel. The proposed method can significantly reduce the amount of buffer memory required to run programs. The schemes of the organization of the memory buffer in multi-threaded processing of frames from a video camera.
Key words: video camera, smart- video camera, instruction stream, video.
Actual problems of modern science: Abstracts of XІІ International scientific-practical conference (Moscow - Astana - Kharkiv - Vienna, August 30, 2016)
