1,280 research outputs found
Самовозбуждающиеся и скрытые аттракторы в системе Хенона
No full textСемак Дмитрий Андреевич. Выпускная квалификационная работа на тему "Самовозбуждающиеся и скрытые аттракторы в системе Хенона". Научный руководитель: ведущий научный сотрудник, к.ф.-м.н., Мокаев Т.Н.. Прикладная математика и информатика, кафедра прикладной кибернетики. Объем с приложением 56 страниц, 16 рис., использовано 36 источников. Данная работа посвящена локализации скрытых аттракторов в системе Хенона (или Эно) с использованием процедуры продолжения по параметру и нестационарных точек с нулевым ускорением. В работе рассмотрены основные элементы теории хаоса и нелинейной динамики, численно проверены выдвинутые предположения, смоделированы основные результаты и приведены коды программ на языке Matlab.Semak Dmitry Andreevich. Final examination paper on the topic "Self-excited and hidden attractors in the Henon system". Supervisor: Cand. Sc., Leading Researcher, Timur Mokaev. Applied Mathematics and Informatics, Department of Applied Cybernetics. The size of the work is 56 pages (with attachment), 16 images, used 36 sources. This paper is devoted to the localization of hidden attractors in the Henon Map using the numerical continuation method and perpetual points. The paper considers the main elements of chaos theory and nonlinear dynamics, numerically verified the assumptions, modeled the main results and developed programs in the language of Matlab
Localization and dimension estimation of attractors in the Glukhovsky-Dolzhansky system
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Numerical analysis of dynamical systems : unstable periodic orbits, hidden transient chaotic sets, hidden attractors, and finite-time Lyapunov dimension
No full textIn this article, on the example of the known low-order dynamical models, namely Lorenz, Rössler and Vallis systems, the difficulties of reliable numerical analysis of chaotic dynamical systems are discussed. For the Lorenz system, the problems of existence of hidden chaotic attractors and hidden transient chaotic sets and their numerical investigation are considered. The problems of the numerical characterization of a chaotic attractor by calculating finite-time time Lyapunov exponents and finite-time Lyapunov dimension along one trajectory are demonstrated using the example of computing unstable periodic orbits in the Rössler system. Using the example of the Vallis system describing the El Ninõ-Southern Oscillation it is demonstrated an analytical approach for localization of self-excited and hidden attractors, which allows to obtain the exact formulas or estimates of their Lyapunov dimensions.peerReviewe
Analisis Kepuasan Pengguna E-Learning pada Universitas Pembangunan Nasional Veteran Jawa Timur Menggunakan Model Kano
No full textE-learning is a distance learning method without having to meet face to face. Because in conventional learning there are often problems with limited time, distance, and costs, particurally due to the current pandemic. UPN Veteran Jawa Timur has implemented the e-learning information system in teaching and learning activities. The involvement of users in accessing the web utilizing information system technology will determine the success of the quality of the system and information applied. The researcher conducted a literature study related to the research. Among them are E-learning, Kano Model, and quantitative research methods. Respondent data were collected using the "Simple Random Sampling" method. Data collection was carried out in this study by indirectly distributing questionnaires. The attributes of the questionnaire were identified using the Kano method to determine the level of user satisfaction with the E-learning system at UPN Veteran Jawa Timur. In this research questionnaire, there are 29 attribute questions with the results of 7 attributes that according to respondents are satisfactory, and 14 attributes according to respondents including dissatisfaction. It was found that the one-dimensional category was still included in the dissatisfaction quadrant where this category greatly influenced user satisfaction. The suggestions that the author can suggest are to pay attention to the attributes that fall into the one-dimensional and must-be categories, especially for the high value of dissatisfaction. For a high satisfaction value, the author suggests that it should be maintained, and it is better if these attributes are developed by paying attention to user satisfaction
SISTEM INFORMASI PENGELOLAHAN DATA BERBASIS WEB DI DINAS TENAGA KERJA DAN TRASMIGRASI PROVINSI JAWA TIMUR
No full textAn information system is a people’s made system that generally consists of a set of computer-based components and manuals that are created to collect, store and manage data and provide output information to users. With the development of technology makes people think to be able to work more effectively and efficiently. One of them is making a conventional system into a computerized system.
In this research, a web-based data management information system is designed which is expected to be able to overcome the various needs to manage data so that it becomes effective and more efficient. From the results of research that has been carried out the author implements the results of the research into the Information System Design for managing data from the Office of Manpower and Transmigration of East Java Province
Поточный агрегатор данных
No full textРабота посвящена проектированию и реализации алгоритма, нацеленного на расчет статистики близкой к реальному времени. Разобраны методы работы с Kafka и Spark Structured Streaming. Написана программа, обеспечивающая с помощью Spark Structured Streaming расчеты заданных метрик в потоковом режиме. Организована передача данных от региональных серверов к основному с поэтапной обработкой.The work is devoted to the design and implementation of an algorithm aimed at calculating statistics close to real time. Methods for working with Kafka and Spark Structured Streaming are discussed. A program that provides calculations of specified metrics in streaming mode using Spark Structured Streaming was written. Data transfer from regional servers to the main one with stage-by-stage processing was organized
Применение эволюционных методов для идентификации хаотических систем
No full textРабота посвящена разработке нового подхода для идентификации параметров хаотической системы с использованием алгоритма дифференциальной эволюции. Исследованы типичные методы для решения задачи параметрической идентификации на примере хаотической системы Лоренца. Реализованный новый подход основан на вычислении спектра показателей Ляпунова, который в экспериментах показал лучшие результаты идентификации, по сравнению с существующими подходами.The work is devoted to the development of a new approach for identifying the parameters of a chaotic system using the evolutionary algorithm. Typical methods for solving the problem of parametric identification are investigated using the chaotic Lorenz system. The implemented new approach is based on calculating the spectrum of Lyapunov exponents, which in experiments showed better identification results in comparison with existing approaches
KRITIK SOSIAL DALAM TIGA CERPEN DI KORAN MANUNTUNG TAHUN 1980-AN DI KALIMANTAN TIMUR
No full textAbstrakPengkajian ini memaparkan gambaran kritik sosial dalam tiga cerpen yang dimuat dalam koran di Kalimantan Timur pada tahun 1980-an, yaitu “Nomer”, “Suatu Sore di Pinggiran Desa”, dan “Tatkala Takbir Menggema”. Fenomena sosial di masyarakat dalam cerpen yang dimuat dalam media cetak berbentuk koran ini layak diungkapkan. Pengungkapan fenomena sosial dalam tiga cerpen tersebut sangat diperlukan untuk melihat kondisi sosial masyarakat di tahun 1980-an karena pada tahun-tahun tersebut dapat dikatakan sebagai awal kemunculan karya sastra berbentuk cerpen dalam media cetak berbentuk koran di Kalimantan Timur. Metode kualitatif digunakan penulis untuk mengungkapkan gambaran sosial yang terjadi pada tahun 1980-an di Kalimantan Timur. Pendekatan sosiologi sastra digunakan sebagai alat untuk mengungkapkan masalah sosial dalam tiga cerpen ini. Namun, sebagai pijakan awal, penulis akan memanfaatkan struktural untuk mengungkapkan salah satu unsur intrinsik yang terdapat dalam karya cerpen yang dibahas. Gambaran masalah sosial yang terdapat dalam tiga cerpen di atas adalah masalah kemiskinan, disorganisasi dalam keluarga, disorganisasi keluarga, generasi muda dalam masyarakat modern, pelanggaran terhadap norma masyarakat, kependudukan, lingkungan hidup, dan birokrasi. Kata kunci: kaltim, kritik sosial, koran, cerpen Abstract This study presents a picture of social criticism in three short stories published in newspapers in East Kalimantan in the 1980s, namely "Nomer", "Suatu Sore di Pinggiran Desa", and "Tatkala Takbir Menggema". Social phenomena in the society in those short stories are worth disclosing. It is necessary to see the social conditions in the society in the 1980s. It can be considered to be the beginning of literary works in the form of short stories in print media of newspapers in East Kalimantan. The author uses qualitative methods to reveal the social picture in the 1980s in East Kalimantan. It also uses the sociological approaches to literature to show social problems in these three short stories. However, as a starting point, the writer will use the structure to reveal one of the intrinsic elements in the short stories. Social problems in those short stories are poverty, disorganization in the family, family disorganization, young people in modern society, violations of social norms, demography, environment, and bureaucracy. Keywords: East Kalimantan, social criticism, newspaper, short stories
VALUES OF A. GAIDAR’S HEROES (“TIMUR AND HIS TEAM”)
No full textThe purpose of the article is to show values of A. Gaidar’s heroes as a system and prove that its
roots can be found in pre-revolutionary culture. Such approach helps to disclose deep connection of author’s
works with Russian classical literature. The novel “Timur and his team” became the object for analysis as it
has seriously influenced behavioral strategies of teens. The analysis of the work in the aspect of axiology
helps to overcome ideological approach to estimating Gaidar’s art. Such guidelines as living in team, doing
good things, saving world from injustice, labour as happiness are pointed out. Special accent is made on
depicting episodes of Timur’s team help to the inhabitants of the village, the structure of such episodes is
carefully studied. It is shown that help is being planned as a military operation, which results in actions
being coordinated and swift, also pointed out methods, which helped Gaidar achieve dynamism, swiftness
in these episodes: lack of detailed descriptions, the predominance of verbs, a vivid comparison, a curious ending. As a result work is
presented not as exhausting, but hard and joyful occupation. Also several principles of creating Timur’s team members are characterised: the author uses telling surnames, gives his heroes a stable portrait feature, a special manner of speech. The main conclusion of the
article is that Gaidar finds the origins of new soviet culture in old, pre-revolutionary culture, that’s why in his novel a lot of references
to key works of Russian literature (e.g. to Gogol’s “Taras Bulba”, Pushkin’s “Capitain’s Daughter”) and art (Repin’s painting “Cossaks
of Zaporozhye write a letter to the Turkish sultan) can be found, the usage of symbolic character images (ravine, garden, chapel with
the pictures of hell) is marked. Gaidar brings back traditional values, which were abandoned in the era of revolutionary reorganisation
of society, but fills them with new, actual for his time ideas. The conclusions of the article may be used in the practise of teaching in
schools and universities
Pengembangan Sistem Manajemen berbasis Website PT. Surya Segara Safety Marine
No full textThis internship report contains the author's work experience at a software house company called CV. Alkas Triyasa Adhimukti. The company focuses on helping other companies build effective and efficient company management systems. The author began the internship in 9 January 2023 and ended in 28 February 2023. During this period, the author was placed in the software development division. The main task of the author was to be involved in the software development process for clients of CV. Alkas Triyasa Adhimukti. The author worked on several different projects during the internship period. One of the most interesting projects was the development of a company management system for a business that specializes in the distribution and sales of safety equipment and maritime equipment. The author was involved in the development of this project. During the internship, the author learned a lot about software development and company management systems. The author gained a better understanding of various technologies and programming languages used in software development. The author also gained skills in communicating with clients and in preparing documentation
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