Automation of technological and business - processes

4-7

Authors: K. Smirnova, A. Smirnov, O. Olshevska

The possibility of applying machine learning is considered for the classification of malicious requests to a Web application. This approach excludes the use of deterministic analysis systems (for example, expert systems), and based on the application of a cascade of neural networks or perceptrons on an approximate model to the real human brain. The main idea of the work is to enable to describe complex attack vectors consisting of feature sets, abstract terms for compiling a training sample, controlling the quality of recognition and classifying each of the layers (networks) participating in the work, with the ability to adjust not the entire network, But only a small part of it, in the training of which a mistake or inaccuracy crept in. The design of the developed network can be described as a cascaded, scalable neural network. The developed system of intrusion detection uses a three-layer neural network. Layers can be built independently of each other by cascades. In the first layer, for each class of attack recognition, there is a corresponding network and correctness is checked on this network. To learn this layer, we have chosen classes of things that can be classified uniquely as yes or no, that is, they are linearly separable. Thus, a layer is obtained not just of neurons, but of their microsets, which can best determine whether is there some data class in the query or not. The following layers are not trained to recognize the attacks themselves, they are trained that a set of attacks creates certain threats. This allows you to more accurately recognize the attacker's attempts to bypass the defense system, as well as classify the target of the attack, and not just its fact. Simple layering allows you to minimize the percentage of false positives.

11-17

Authors: А.Ф. Арабаджи, A. A. Стопакевич, A. A. Стопакевич

Показана актуальность разработки технологических процессов переработки попутного нефтяного газа для обеспечения энергетической независимости Украины. Основным элементом схемы переработки нефтяного газа является ректификационная колонна. Качество разделения газа в колонне в значительной степени определяется качеством системы автоматического управления ректификационной колонной. В статье разработана и исследована новая двухуровневая система автоматического управления ректификационной колонной в технологическом процессе переработки попутного нефтяного газа. Разработка основана на решении следующих задач: описание динамики ректификационной колонны как многомерной системы с тремя входами и тремя выходами; выбор каналов управления нижнего уровня системы управления ректификационной колонной; синтез нижнего уровня системы автоматического управления с минимизацией влияния перекрестных каналов ректификационной колонны; разработка модели объекта для верхнего уровня системы автоматического управления; синтез верхнего уровня системы автоматического управления с использованием линейно-квадратичного регулятора; анализ качества разработанной системы автоматического управления на основе анализа переходных процессов, полученных при моделировании замкнутой двухуровневой системы управления при максимальных возмущениях как по нагрузке, так и по заданию. Анализ показал, что разработанная система автоматического управления повышает качество управления по сравнению с одноуровневой системой на основе пропорционально–интегральных регуляторов.

22-27

Authors: А. В. Лысюк, А. В. Бондаренко, М. М. Максимов, А. И. Брунеткин

Определение условной формулы газообразного углеводородного топлива основано на модельных представлениях в соответствии с законами сохранения вещества, Дальтона, химического равновесия по парциальным давлениям. Определение динамических характеристик теплоэнергетического оборудования основано на уравнениях материального и теплового балансов, законов конвективного и лучистого теплообмена и свойств сжимаемой газообразной среды. Предложен метод обеспечения заданной тепловой нагрузки теплогенерирующей установки основаный на вычислении условной формулы газообразного углеводородного топлива и определении динамических характеристик теплогенерирующей установки.

36-42

Authors: К. Молодецька-Гринчук

На сучасному етапі соціальні інтернет-сервіси перетворилися на дієвий інструмент комунікації учасників віртуальних спільнот – акторів. Також соціальні інтернет-сервіси використовуються для самоорганізації громадянського суспільства, координації з метою впливу на політичні й суспільні процеси у державі. У випадку поширення в соціальних інтернет-сервісах недостовірного контенту вони перетворюються на джерело загроз інформаційній безпеці особистості, суспільства, держави. Відсутність ефективних методик виявлення ознак загроз у соціальних інтернет-сервісах створює передумови для проведення інформаційних операцій в інтересах провідних держав світу чи зацікавлених осіб. Серед ознак загроз інформаційній безпеці держави виділено організацій, змістовні, маніпулятивні та оцінки профілів інформаційної безпеки акторів. Розроблено метод оцінювання ознак загроз, який ґрунтується на їх скалярній згортці по нелінійній схемі компромісів. Перевагами методу є застосуванням сучасних підходів до виявлення ознак інформаційних акцій у соціальних інтернет-сервісах, компроміс між частинними критеріями і оптимальність отриманого рішення за Парето. Проведено експертне оцінювання фахівців у галузі інформаційної безпеки для встановлення пріоритетності ознак загроз. Виконано експериментальне дослідження запропонованого методу оцінювання ознак загроз на прикладі реальної інформаційної акції. Отримані результати збіжні з висновками міжнародних організацій, що доводить його дієвість та ефективність. Застосування розробленого методу для функціонування системи забезпечення інформаційної безпеки держави у соціальних інтернет-сервісах дозволить автоматизувати процедури раннього виявлення загроз, підвищити її оперативність і швидкодію.

47-51

Authors: S. Hudz, A. Mazur, D. Kovalchuk

The technologies of thermal treatment in vacuum are widely used in various fields of production, in particular in the food industry, but their application at farms, hotels or a for domestic purposes is limited because of the big sizes, high cost of processing equipment and complexity of its management at realization of foodstuff processing. Products, made with use of vacuum technologies, keep much more useful substances because they aren't exposed to high-temperature processing and oxidation while preparation. Development and production of the small-sized equipment for realization of heat treatment processes of foodstuff in vacuum would create technical and economic conditions for implementation of temperature processing processes of foodstuff at farms, hotels and even at home that would promote creation of new food, development of new recipes and, in general, development of the new direction in cookery. So the article describes the problem of equipment construction for the process of thermal processing of food in vacuum such as cooking jam, concentration of juices and dairy products, distillation, drying, pickling, and the possibility of building inexpensive compact vacuum unit for the implementation of these processes (crock-pot) for use at hotels, farms and even for domestic purposes. The analysis of technological schemes for energy efficient evaporation process in vacuum crock-pot is provided. The developed technological scheme of vacuum crock-pot with thermoelectric converters and principle of its operation are considered. Microprocessor block diagram of a multichannel data acquisition system consisting workstation for investigation of thermoelectric vacuum crock-pot as a control object is presented and control algorithms helping to reduce energy consumption and to increase operational reliability in implementing processes and the quality of ready-made products are provided.

4

Authors: Voinova S.

The content, meaning and methodological possibilities of use of the developed and proposed balance of technological efficiency of operation of a technical object are considered. The methodological basis for offset in different conditions and modes of use of technical objects, with different properties are described. Content, features and mutual relations of the resulting indicators of the state of these objects are disclosed. The potential positive technical and scientific possibilities of the use of offset’s results when new technical objects are created or worn-out objects are updated are noted. The offset and use of the closing, instantaneous and the prognosis balance of technological efficiency of technical object's operation broaden scopes, deepens the possibilities of analysis and control of this process.

5

Authors: Antonova A., Dzyuba N.

The article is concerned with the analysis of recipes of confectionary products on the basis of essential indicators of chemical composition meeting the demands of definite group of consumers (corresponding the physiological norms of feeding the different group of population). The ratio of carbohydrates and proteins which is determined for correlating group of the intensity of labour is analized. Criteria of optimality of the composition of present products were adopted on this basis. The received results give the possibility of choice of the composition of farinaceous confectionary product concidering the aminoacid composition. Variants of the optimized recipes of the farinaceous confectionary product enriched with gluten were obtained. Key indicators of quality of the made farinaceous confectionary product were defined.

5

Authors: Yehorov V., Putnikov D.

Studying of technical disciplines in higher education institution as a rule consists of 2 parts – theories and practice. Practice, is a type of educational process which allows to realize theoretical knowledge to the applied sphere. In particular it allows to provide an object visually, creating its image and visually adequate perception. This work is devoted to development of laboratory base of technical college with use of robots manipulators on occupations. Its relevance is shown. The overview of modern stands is provided in different higher education institutions, the analysis of their benefits and shortcomings is this. The task of creation of the robot manipulator for sorting of objects of color is set. The robot model including an automatic management system it is developed. The sensor of color, the regulator and the executive mechanism allowing to move objects to the corresponding reservoirs is its part. Possibilities of further development of a question, in particular, creations of physical model for use are given in laboratory works.

6

Authors: Pavlov A. I.

Many objects automatic control unsteady. This is manifested in the change of their parameters. Therefore, periodically adjust the required parameters of the controller. This work is usually carried out rarely. For a long time, regulators are working with is not the optimal settings. The consequence of this is the low quality of many industrial control systems. The solution problem is the use of robust controllers. Explores the possibility of increasing the survivability of automatic control systems by expanding the area of their normal work. This is achieved by using an artificial neural network simple structure. The method is based on the cooperative effect of neural structures. In this block diagram of the controller is very simple. Such control effectively compensates the coordinate perturbations if they act on the control channel.

7

Authors: Kolesnikova K., Monova D., Naumenko Ye., Kheblov I., Gurjev I.

Creative element fate of any activity may not fall to zero because of the turbulent environment in which these activities are carried out, always prevents this. Environment that makes each building unique, that is, provides the main basis of the project. When we are talking about complex construction, the share of the creative component becomes very significant. First and foremost, this is explained by the duration of the construction work, during which time to happen risk events. The article analyses the processes of construction from the point of view of their conformity to the concept of project activities. It is shown that with increasing degree of difficulty of construction or time of the last share of creative activities in the overall project grows. In recent times more and more widespread work on re-engineering complex systems, for example, building constructions. This means repair of the building, but not a simple repair with restoration of the original, incorporated in the design of building elements and their interfaces, and partial or full replacement of items that fail or are outdated, new ones require first, a new design of their structures and production technologies, as well as the design of the accessories for the installation and technology is reshaping the object. Combining the two above-mentioned factors of growth of the share of creative activities during the project management of the re-engineering of building structures: complexity and construction time, received a cognitive model of such growth. Introduced the concept of "reengineering in construction" as a combination of the processes of adjustment and worn or completion of unfinished buildings. It is proved that any re-engineering in construction is the project activities. Provisions are tested in a real reengineering of industrial buildings with a positive technical and economic effect.

11

Authors: Foshch T., Pelykh S.

This study represents the improved mathematical and imitational allocated in space multi-zone model of VVER-1000 which differs from the known one. It allows to take into account the energy release of 235U nuclei fission as well as 239Pu . Moreover, this model includes sub-models of simultaneous control impact of the boric acid concentration in the coolant of the first circuit and the position of 9th group control rods which allows to consider it as the model with allocated parameters and also allows to monitor changes in the mentioned technological parameters by reactor core symmetry sectors, by layers of reactor core height and by fuel assembly group each symmetry sector. Moreover, this model allows to calculate important process-dependent parameters of the reactor (including axial offset) as quantitative measure of its safety. As the mathematical and imitational models were improved, it allows to take into account intrinsic properties of the reactor core (including transient processes of xenon) and thus reduce the error of modelling static and dynamic properties of the reactor. The automated control method of power change of the NPP unit with VVER-1000 was proposed for the first time. It uses three control loops. One of which maintains the regulatory change of reactor power by regulating the concentration of boric acid in the coolant, the second circuit keeps the required value of axial offset by changing the position of control rods, and the third one holds constant the coolant temperature mode by regulating the position of the main turbo generator valves. On the basis of the above obtained method, two control programs were improved. The first one is the improved control program that implements the constant temperature of the coolant in the first circuit and the second one is the improved control program that implements the constant steam pressure in the second circuit.