Web application development of a for solving the problem of optimizing the products transportation cost

Объектом исследования является процесс транспортных перевозок. Предметом исследования выступают пункты потребления и пункты производства, автоматизация системы расчета оптимальной стоимости перевозки. Поставленные задачи: 1. Возможность ввода, корректировки и сохранения вариантов расчёта по оптимизации. 2. Отображение результатов расчета в графическом виде на пользовательской форме. Целью данной работы является создание информационного Web-приложения, который позволит рассчитывать оптимальную стоимость перевозки продукции, предоставлять пользователю результаты расчета в графическом виде. Научная новизна полученных в работе результатов заключается в применении нового метода эффективной организации и ведения специализированного алгоритмического и программного обеспечения решения задачи оптимизации затрат на перевозку продукции, ориентированного на повышение эффективности управления процессами грузоперевозок с использованием современных методов обработки информации: использование гибкой методологии разработки (Agile) и таск-трекера Atlassian JIRA для ведения проекта, взаимодействия с заказчиком во время разработки, отслеживания ошибок, визуального отображения задач и мониторинга процесса их выполнения; функциональное моделирование процессов для реализации web-приложения решения задачи оптимизации затрат на перевозку продукции на основе методологии IDEF0 и средства реализации Ramus Educational; использование методики коллективного владения программным кодом на основе сервиса (удаленного репозитория) Atlassian Bitbucket. Практическая значимость результатов заключается в том, что разработанное программное обеспечение позволит: производить расчёт оптимальной себестоимости транспортных перевозок для любого количества пунктов производства; специалистам транспортно-логистического операционного отдела сократить время на формирование отчетных документов, сократить время поиска необходимой фактической отчетной информации за счет реализации эргономичного web-интерфейса; специалистам отдела сопровождения информационных систем предоставляет условия для снижения трудозатрат на сопровождение, совершенствование и развитие системы с учетом пожеланий пользователей. Результаты работы могут быть использованы также в учебном процессе для обучения бакалавров и магистрантов по направлению «Информационные системы и технологии».The object of the research is the process of transportation. The subject of the research is points of consumption and points of production, automation of the system for calculating the optimal cost of transportation. Assigned tasks: 1. Possibility of entering, adjusting and saving options for the calculation of optimization. 2. Displaying the calculation results in a graphical form on the user form. The purpose of this work is to create an information Web-application that will allow you to calculate the optimal cost of transportation of products, provide the user with the results of the calculation in a graphical form. The scientific novelty of the results obtained in the work lies in the application of a new method of effective organization and maintenance of specialized algorithmic and software solutions for the optimization of the cost of transportation of products, focused on improving the efficiency of management of cargo transportation processes using modern information processing methods: the use of flexible development methodology (Agile) and the Atlassian JIRA task tracker for project management, interaction with the customer during development, tracking errors, visual display of tasks and monitoring the process of their implementation; functional modeling of processes for the implementation of a web-application for solving the problem of optimizing the costs of transportation of products based on the IDEF0 methodology and Ramus Educational tools; using the method of collective ownership of the program code based on the service (remote repository) Atlassian Bitbucket. The practical significance of the results lies in the fact that the developed software will allow: to calculate the optimal cost of transportation for any number of points of production; for specialists of the transport and logistics operations department, to reduce the time for the formation of reporting documents, to reduce the time to search for the necessary actual reporting information due to the implementation of an ergonomic web interface; for specialists of the information systems support department, it provides conditions for reducing labor costs for maintaining, improving and developing the system, taking into account the wishes of users. The results of the work can also be used in the educational process for training bachelors and undergraduates in the direction "Information systems and technologies"

Low-Waste Synthesis and Properties of Highly Dispersed NiO·Al₂O₃ Mixed Oxides Based on the Products of Centrifugal Thermal Activation of Gibbsite

This study revealed an increased reactivity of centrifugally thermoactivated products of gibbsite toward aqueous solutions of nickel nitrate at room temperature as well as under hydrothermal conditions. X-ray, thermal, microscopy, adsorption and chemical analysis methods were used to investigate and demonstrate the possibility of obtaining highly loaded mixed aluminum–nickel oxide systems, with a nickel content of ca. 33 wt.%, using a hydrochemical treatment at room temperature or a hydrothermal treatment of suspensions of the product of the centrifugal thermal activation of gibbsite in aqueous solutions of nickel nitrate. It was shown that the thermal treatment of xerogels—hydrochemical interaction products—in the range of 350–850 °C led to the formation of NiO phases and highly dispersed solid solutions of nickel based on the NiAl2O4 spinel structure, with different ratios and a high specific surface area of 140–200 m2/g. A hydrochemical treatment of suspensions at room temperature ensures that the predominant formation of the NiO phase is distributed over the surface of the alumina matrix after calcination, whereas hydrothermal treatment at 150 °C leads to a deeper interaction of the suspension components at the treatment step, which occurs after the thermal treatment of the formed xerogel in the predominant formation of poorly crystallized NiAl2O4 spinel (“protospinel”). The considered method makes it possible to obtain complex aluminum–nickel oxide systems with different phase ratios, decreases the number of initial reagents and synthesis steps, completely excludes waste and diminishes the total amount of nitrates by 75 wt.% compared to the classical nitrate scheme for the coprecipitation of compounds with a similar elemental composition

Wasteless Synthesis and Properties of Highly Dispersed MgAl₂O₄ Based on Product of Thermal Activation of Gibbsite

The study showed that the interaction of the product of centrifugal thermal activation of gibbsite with an aqueous solution of magnesium nitrate at a cationic ratio Mg:Al = 1:2 leads to the formation of mixed double hydroxides both under hydrothermal treatment at 150 °C and at room temperature. The subsequent thermal treatment at 550 °C of the product of mild interaction leads to ~90% alumina-magnesia spinel and ~10% MgO, while the treatment of the hydrothermal interaction product leads to ~100% spinel with the stoichiometric composition MgAl2O4. The obtained spinel samples possess a high specific surface area (above 100 m2/g) and a hierarchical pore structure formed by the micron-level particles of different sizes (1–2 and 10–20 μm) consisting of ~70 nm crystallites with ~3 nm pores; the samples differ mostly in the total volume and quantitative ratio of the pores. The samples have Lewis acid sites of moderate strength on the surface, the amount of which is much lower to how it is when compared with a sample prepared by precipitation in that they also differ by quantity from each other as well (503 μmol/g for stoichiometric spinel and 304 μmol/g for sample with admixture of MgO). As the calcination temperature is raised to 850 °C, the acidity decreases—only weak Lewis acid sites are observed, the amount of which is also higher for stoichiometric spinel (161 and 39 μmol/g, respectively). The method proposed for the synthesis of alumina-magnesia systems provides a high dispersion and a much lower surface acidity for the oxides; in addition, it minimizes or completely excludes wash water, in distinction to the precipitation method