bluuebunny/crossref_metadata_2025_split huggingface dataset:
MODELING OF THE PROGRAMMED CONTROL WITH PROBABILITY 1 FOR SOME FINANCIAL TASKS
Authors: Карачанская Е.В. , Петрова А.П. 
Published: March 2023

Описание динамики некоторых финансовых событий может быть связано со стохастическими дифференциальными уравнениями Ито (СДУ). В работе рассматриваются финансовые модели, которые имеют случайные возмущения, вызванные винеровским и пуассоновским процессами. Построение программных управлений с вероятностью 1 (РСР1) основано на понятии первого интеграла для стохастических динамических систем диффузионного типа со скачками, описываемых уравнениями Ито. В качестве примеров построения PCP1 рассматриваются два вида финансовых моделей: модель инвестиционного портфеля (диффузионная) и модель процентных ставок (диффузионная со скачками). Приведенные примеры сопровождаются численным моделированием.
The description of the dynamics of some financial events can be related to Itô stochastic differential equations (SDE). In this paper, we consider a financial model affected by random disturbances which take the form of Wiener and Poisson perturbations. The construction of the programmed control with probability 1 (PCP1) is based on the concept of first integral for stochastic dynamic systems of diffusion type with jumps which are described by the Itˆo equations. Two types of financial models are considered as examples of the construction of PCP1: the investment portfolio model (diffusion model) and the interest rate model (diffusion with jumps). The given examples are accompanied by numerical modeling.
THE CAUCHY PROBLEM FOR DISTRIBUTED ORDER EQUATIONS IN BANACH SPACES
Authors: Стрелецкая Е.М. , Федоров В.Е. , Дебуш А. 
Published: March 2023

Исследуется задача Коши для уравнения распределенного порядка в банаховом пространстве с дробной производной Герасимова–Капуто и с линейным ограниченным оператором в правой части. Методами теории преобразования Лапласа найдены условия существования и единственности решения задачи в пространстве экспоненциально растущих функций. Решение представлено в виде контурного интеграла от резольвенты ограниченного оператора со сложным аргументом, определяемым видом распределенной производной. Доказана аналитичность полученного решения в правой полуплоскости комплексной плоскости. Полученный общий результат использован при исследовании задачи Коши для одной интегродифференциальной системы уравнений, правая часть которой представляет собой композицию интегрального по пространственным переменным и линейногопреобразований неизвестной вектор-функции.
The Cauchy problem for a distributed order equation in a Banach space with the fractional Gerasimov–Caputo derivative and a linear bounded operator in the right-hand side is studied. Existence and uniqueness conditions for the problem solution in the space of exponentially growing functions are found by the methods of the Laplace transformation theory. The solution is presented in the form of a contour integral of the bounded operator resolvent with a complex argument determined by the form of the distributed derivative. The analyticity of the solution in the right half-plane of the complex plane is proved. The general result is applied to the research of the Cauchy problem for an integro-differential system of equations with right-hand side in the form of composition of an integral operator with respect to the spatial variables and the linear transformation of the unknown vector-function.
A MATHEMATICAL MODEL OF IDEAL GAS HYDRATE DECOMPOSITION IN A RESERVOIR THROUGH DECREASING PRESSURE AND SIMULTANEOUS HEATING
Authors: Попов В.В. 
Published: March 2023

Построена и численно реализована математическая модель процесса разложения гидратов, сосуществующих в термодинамически равновесном состоянии в пласте, путем снижения давления и повышения температуры на галерее скважин. В системе связанных уравнений тепломассопереноса уравнение сохранения энергии содержит слагаемые, учитывающие конвективный и кондуктивный перенос тепла, а также скрытую теплоту фазового перехода. Для описания данного процесса разработана и численно реализована математическая модель без явного выделения подвижной границы раздела областей с фазовым переходом и без фазового перехода. Численно реализована математическая модель, разработанная Г. Г. Цыпкиным в 2009 г. Приведены результаты численных расчетов в виде графиков. Показано что при определенных значениях депрессии и начальной гидратонасыщенности значение последней на скважине приближается к нулю. Показано что при малых значениях начальной гидратонасыщенности даже достаточно сильный нагрев мало влияет на динамику подвижной границы, разделяющей область с фазовым переходом и область без фазового перехода.
A mathematical model of the process of dissociation of hydrates coexisting in a thermodynamically equilibrium state in a reservoir by reducing the pressure and increasing the temperature in the gallery of wells is implemented numerically. It is shown that at certain values of depression and initial hydrate saturation, the value of the latter at the well approaches zero. A mathematical model developed by G. G. Tsypkin in 2009 is implemented numerically. In the system of coupled heat and mass transfer equations, the energy conservation equation contains terms that take into account convective and conductive heat transfer, as well as the latent heat of the phase transition. It is shown that at low values of initial hydrate saturation even strong enough heating has little effect on the dynamics of the moving boundary separating the region with phase transition from the area without phase transition. The results of numerical implementations are given in the form of graphs.
CONTROL SYSTEM OF TECHNOLOGICAL PROCESS OF SYNTHESIS OF ISLAND CATALYST OF FUEL CELLS
Authors: Образцов Д.В. , Дутов М.Н. , Чернышов В.Н. 
Published: March 2023

Рассмотрена измерительно-управляющая система, реализующая метод активного технологического контроля топологических параметров синтезируемых островковых катализаторов на электролитах твердооксидных топливных элементов. Предлагаемая измерительно-управляющая система позволяет получать островковый катализатор с максимальной активной площадью, и как следствие создание топливных элементов с максимально возможной мощностью и высоким эксплуатационным ресурсом. Экспериментальная проверка разработанной измерительно-управляющей системы показала ее работоспособность и эффективность при создании твердооксидных топливных элементов.A measuring and control system is considered that implements the method of active technological control of the topological parameters of synthesized island catalysts on electrolytes of solid oxide fuel cells. The proposed measuring and control system makes it possible to obtain an island catalyst with a maximum active area, and as a result, the creation of fuel cells with the highest possible power and a long service life. Experimental verification of the developed measuring and control system showed its operability and efficiency in the creation of solid oxide fuel cells.
Berpikir Aljabar Siswa dalam Menyelesaikan Masalah Ditinjau dari Gaya Blajar Visual, Auditori, dan Kinestetik.
Authors: Azahra Aghni Mey , Masriyah Masriyah 
Published: March 2023

Berpikir aljabar merupakan aktivitas mental seseorang dalam menyelesaikan masalah yang ditentukan dari enam aktivitas berpikir matematis untuk menganalisis, menggunakan simbol-simbol aljabar, menggunakan model matematika untuk mengetahui dan mewakili hubungan situasi matematika dengan aljabar serta perubahan dalam berbagai konteks. Pendekatan yang paling tepat untuk membangun dan mengembangkan berpikir aljabar siswa adalah pemecahan masalah Salah satu karakteristik siswa yang harus dipahami dan diperhatikan oleh seorang guru dalam proses pembelajaran adalah gaya belajar siswa. Jenis penelitian ini adalah penelitian deskriptif kualitatif yang bertujuan untuk mendeskripsikan berpikir aljabar siswa SMP dalam menyelesaikan masalah aljabar ditinjau dari gaya belajar visual, auditori, dan kinestetik. Instrumen penelitian yang digunakan dalam penelitian ini adalah angket gaya belajar, soal tes proses berpikir aljabar siswa, dan pedoman wawancara. Subjek penelitian 3 siswa kelas VIII di SMPN 1 Krian berdasarkan gaya belajar yang diperoleh dari hasil angket gaya belajar visual, auditori, dan kinestetik dengan kemampuan matematika yang setara yaitu kemampuan matematika sedang. Hasil penelitian ini menunjukkan bahwa ketiga subjek melakukan keenam indikator dari tahap generalisasi, abstraksi, berpikir dinamis, pemodelan, berpikir analitis, dan organisasi. Siswa gaya belajar visual dan kinestetik menentukan aturan umum persamaan yang digunakan dalam memecahkan masalah menggunakan simbol aljabar. Sedangkan siswa gaya belajar auditorial mengungkapkan penjelasan secara verbal (kata-kata).
Kata Kunci: Berpikir aljabar, masalah aljabar, gaya belajar.
Parametric Assessment of Macrophytes Ecological Niches in Solving Problems of Sand Quarry Lakes Phytomelioration
Authors: Mironova Nataliia , Mateyuk Olesya , Biletska Halyna , Shevchenko Sergii , Kazimirova Liudmila , Artamonov Boris , Kravchuk Vasyl , Bloshchynskyi Ihor 
Published: March 2023

Technogenic reservoirs, i.e., sand quarry lakes, appear when sand is extracted under the water column by dredgers or as a result of flooding of quarries. Studies of such reservoirs in the territory of Small Polissia (Ukraine) have shown that the devastated shoreline is like a neo-ecotope formed in the ecotone zone between the water environment of such reservoirs and natural areas upon completion of their operation. Changes in the ecotope within this zone lead to the formation of ecological niches with a set of new specific factors characteristic of aquatic and near-shore vegetation. It has been determined that the fundamental niche of macrophytes in the littoral area of sand quarry lakes in the conditions of Small Polissia is determined by the following parameters: illumination 2500-90000 lux; depth 0–5 m; and trophicity (humus content) – 0-5 %. The realized niches differ for plants of different ecological groups and make up about 50 % for helophytes, about 20 % for pleistophytes, and about 70 % for hydatophytes of the fundamental niche of aquatic vegetation. The volume of space in which the niches of all types of macrophytes in the technogenic lakes of Small Polissia overlay is 10%. The maximum overlay of niches is characteristic of areas covering a combination of factors in terms of illumination (in summer) 15000-90000 lux and depths of 1.3–2.8 m, which creates conditions for the formation of three-tiered phytocoenoses. The niche of submerged plants is the largest, which indicates their highly competitive potential, which is limited mainly by the illumination parameter. Under such conditions, the rapid development of submerged vegetation in the future may lead to the accumulation of its biomass and bogginess, which will limit the use of sand quarry lakes for recreational and other types of nature management. Phytomeliorative tree planting around sand quarry lakes is proposed to regulate illumination as a parameter of the ecological niche of submerged plants. Doi: 10.28991/HEF-2022-03-04-02 Full Text: PDF
The Strategy of Aceh Tourism And Culture Services In Post-Pandemic Halal Tourism Recovery
Authors: Mardhatillah Fitria , Thani Shira , Gani PG Eko , Yustisi Nabhani 
Published: March 2023

Tourism has become one of the sectors that drives economic growth in Indonesia. The growth of the Muslim population gave birth to the Muslim tourist market, thus encouraging the development of halal tourism in Indonesia. However, 2019-2021 has been a year of decline in tourists and even the number of foreign tourist visits to Indonesia has decreased drastically in 2021, including the Aceh region. Aceh's leading tourism such as Aceh Singkil and Central Aceh have been affected by the pandemic outbreak. The purpose of this research is to find out the recovery strategies and efforts carried out by the Aceh Culture and Tourism Services. The research method used is the qualitative method. Data collection is carried out through literature studies from various sources such as reports, books and journals. The data analysis used is content analysis. The strategy of the Aceh Tourism and Culture Services in restoring halal tourism post pandemic is to compile a series of events throughout 2022 as a form of preparation and recovery of Aceh halal tourism in collaboration with various parties.
The Role of the City of Langsa Regional Government on The Empowerment of Terasi Production Houses in Reduce The Unemployment Rate (Research Study on Terasi Production House Business at Gampong Lhok Banie Langsa City)
Authors: Muliani Muliani , Iskandar Hadi , Yudi Afrizal Teuku 
Published: March 2023

Indonesia is a state of law, this has been explained in Article 1 paragraph (3) of the 1945 Constitution which states: The State of Indonesia is a state of law. This is based on the explanation of the 1945 Constitution that the State of Indonesia is based on law (rechtstaat) and is not based on mere power (machstaat). The mandate of Article 78 paragraph (1) of Law Number 6 of 2014 concerning Villages states that "Village development aims to improve community welfare and the quality of human life as well as poverty alleviation through fulfilling basic needs, developing village facilities and infrastructure, developing local economic potential, and utilizing natural resources. nature and the environment in a sustainable manner. Based on Presidential Regulation Number 2 of 2015 concerning the 2015-2019 National Medium-Term Development Plan, it mandates the development and development of urban areas through handling the quality of the residential environment, namely improving the quality of slum settlements, preventing the growth and development of new slums, and sustainable livelihoods.
This study aims to identify and explain the role of the Langsa City Government in the implementation of the empowerment of shrimp paste production houses in reducing unemployment through the City Without Slums Program (KOTAKU) in Lhok Banie Village, as well as to identify and explain the obstacles and efforts of the Langsa City Government towards the implementation of the empowerment of shrimp paste production houses. in Gampong Lhok Banie in reducing unemployment. The method that the researcher uses is the empirical juridical method with qualitative analysis. Data obtained through library research activities and field research. Data analysis was carried out from the beginning and continued throughout the research process, namely data collection, data reduction, data assessment, and data collection. The results showed that research on the role of the Langsa City Government in implementing the empowerment of the Langsa shrimp paste production house in reducing unemployment is the main person in charge of this implementation. and One-Stop Service for Langsa City, the Health Service, the Industry, Trade, Cooperatives and Small and Medium Enterprises (UKM) Service, the Public Works and Spatial Planning Office and the KOTAKU Office. However, the obstacle is the unavailability of equipment for processing and drying in a modern way because the shrimp paste production house has not changed the amperage to a larger one and the City Government has not been able to send the tool, it is feared that there will be a power outage at the shrimp paste production house. The next obstacle is that the manager of the shrimp paste production house has not taken the qualification test to get a certificate from the Health Office.
Administrative Legal Accountability for B3 Waste Management Receiving Companies In Environmental Pollution Environmental
Authors: Abidin Zainal , Ilyas Ilyas , Syahrin Alvi , Rinaldi Yanis 
Published: March 2023

Problems are essentially ecological problems. The essence of environmental problems is the reciprocal relationship between living things and their environment. Therefore, wise development (especially in the environmental field) must be based on environmental insight as a means to achieve sustainability and become a guarantee for the welfare of present and future generations. carried out by companies or legal entities besides having a positive effect, can also have negative effects such as pollution or environmental damage. including B3 waste management. Waste treatment is closely related to the factory production system. pollution occurs, the B3 waste management company is held accountable, but in practice there is a discrepancy in the B3 waste processing carried out by the company that accepts work. This research is normative legal research, which collects secondary data through literature studies, to obtain secondary data in the form of primary, secondary and tertiary legal materials. The primary legal materials are in the form of the 1945 Constitution, other laws, decisions of judges, which are relevant to this writing and research. Secondary legal material in the form of opinions from legal experts through textbooks, journals, articles, results of previous research, workshop papers, seminars, symposiums, discussions, magazines/newspapers, theses, dissertations, etc., which have something to do with the object of this research. Tertiary legal materials in the form of dictionaries and encyclopedias, relevant bibliographies and dictionaries. Field research was conducted to complement library data.
The results of the study show that legal liability to the employer due to negligence by the company that accepts B3 waste management in the event of environmental pollution is an unlawful act contained in Article 1365 of the Civil Code, Environmental Law Number 32 of 2009, which is contained in Article 87 (1) and Regulation of the Minister of Environment Number 5 of 2014 Concerning Wastewater Quality Standards, or waste being processed according to company operational standards (SOP) agreed between the management of PT. Medco with companies. Furthermore, the waste that has been processed internally in each industry will be sent to the Installation
Analisis Kebutuhan Penggunaan Bahan Ajar Berbasis Teknologi Infomasi
Authors: Trinaldi Adit , Bambang Siti Enik Mukhoiyaroh , Afriani Mefliza , Rahma Febrizka Alya , Rustam Rustam 
Published: March 2023

Tujuan penelitian ini ialah melihat penggunaan bahan ajar berbasis teknologi informasi yang digunakan oleh guru. Metode penelitian yang digunakan oleh peneliti adalah kualitatif dengan pendekatan fenomenologi. Data penelitian yang digunakan hasil dari kuisioner dan wawancara guru di provinsi Jambi. Validitas data menggunakan triangulasi data dengan teori Miles dan Huberman. Hasil penelitian menunjukkan bahwa untuk menghasilkan bahan ajar berbasis teknologi informasi yang sesuai dengan zaman, guru di provinsi Jambi perlu melakukan evaluasi dalam bentuk analisis kebutuhan penggunaan bahan ajar berbasis teknologi informasi dengan memperhatikan : 1) bahan ajar berbasis teknologi informasi yang efisien, 2) kegiatan pembelajaran dengan komponen yang saling melengkapi. 3) bahan ajar berupa audio, audiovisual, visual dan interaktif 4) analisis kebutuhan menjadi proses pemecahan masalah penggunaan bahan ajar berbasis teknologi informasi.
Analisa Penerapan Project Based Learning pada Pembejalaran Tematik
Authors: Fajariyanti Khomsya Wanudya Kharisma , Sumilat Juliana Margareta , Paruntu Noula Marla , Poluakan Cosmas 
Published: March 2023

Penelitian ini bertujuan untuk mengetahui hasil penerapan model pembelajaran berbasis proyek pada subtema “Bagaimana tubuh mengelola makanan?”. Metode penelitian yang digunakan adalah deskriptif kualitatif dengan menggunakan tekhnik triangulasi untuk memperoleh dan mmproses data. Penelitian ini dilaksanakan di SD Negeri Compreng I Kecamatan Widang Kabupaten Tuban. Subjek penelitian adalah kelas VB dengan jumlah siswa sebanyak 16 orang. Berdasarka hasil analisis data penelitian melalui observasi, analisa proses dan hasil belajar serta inteview menunjukkan bahwa pembelajaran dengan project based learning dapat meningkatkan keaktifan peserta didik dalam pembelajaran. Selain itu peserta didik dapat menghasilkan proyek dengan nilai presisi tinggi. Berdasarkan hasil temuan tersebut dapat disimpulkan bahwa setiap tahapan pada model pembelajaran berbasis proyek setidaknya mengembangkan satu aspek keterampilan berfikir abad 21. Peserta didik mengkonstruksi pengetahuan mereka secara kolaboratif untuk menghasilkan karya buah kreatifitas dan inovasi mereka. Kemudian mereka mengkomunikasikan dan mengavaluasi hasil kerja satu sama lain. Sehingga mereka mendapatkan pengetahuan yang lebih baik dari pengalaman belajar yang telah dilalui.
Analisis Peran Guru dalam Implementasi Nilai-Nilai Karakter melalui Pembelajaran Jarak Jauh di Masa Pandemi Covid-19
Authors: Ruslan Ahmad , Pranata Khavisa , Azizah Nur , Fatayan Arum 
Published: March 2023

Implementasi pendidikan karakter masih belum berjalan secara ideal, Hal ini bisa dilihat dari perilaku pada kehidupan anak-anak saat di rumah, di sekolah, hingga di masyarakat yang mencerminkan karakter yang kurang baik. Tujuan dari dilakukan studi ini untuk menggambarkan peranan guru dalam mengimplementasikan nilai-nilai karakter melalui pembelajaran jarak jauh, menganalisis hambatan yang guru hadapi dalam implementasi nilai-nilai karakter melalui pembelajaran jarak jauh, mendeskripsikan usaha yang dilakukan guru dalam menyelesaikan hambatan yang dihadapinya dalam implementasi nilai-nilai karakter melalui pembelajaran jarak jauh. Studi ini, melalui penggunaan metode kualitatif yang juga melibatkan pendekatan studi kasus. Sedangkan subjeknya diambil dari kepala sekolah, guru kelas, dan siswa Sekolah Dasar. Data-data penlitian terkumpul dari hasil observasi, wawancara mendalam serta dokumentasi. Hasil penelitian ini menyatakan bahwa peran guru dalam implementasi nilai-nilai karakter di Sekolah Dasar ditemukan lima aspek peran yakni; a) guru berperan sebagai korekor, b) guru berperan sebagai motivator, c). guru berpera sebagai inisiatir, d) guru berperan sebagai fasilitator dan e). guru berperan sebagai supervisor.
Strategi Pembelajaran Daring Berbasis Contextual Teaching and Learning (CTL) pada Pembelajaran IPA di Sekolah Dasar
Authors: Andriani Kiki Melita , Fatonah Siti , Wiranata RZ Ricky Satria , Azzahra Indah Maysela 
Published: March 2023

Penelitian ini membahas tentang pembelajaran IPA pada masa pandemi covid-19 di SD Al-Azhar Wonosari . Tujuan dari penelitaian ini adalah mengatahui strategi pembelajaran Contextual Teaching and Learning (CTL) pada pembelajaran IPA di sekolah pada masa pandemi. Metode yang digunakan pada penelitian ini adalah deskriptif kualitatif, dengan objek penelitian ini adalah pelaksaan pembelajaran CTL pada mata pelajarn IPA dan subjek penelitian adalah kepala sekolah SD Al-Azhar Wonosari. Hasil dari penelitian ini adalah strategi pembelajaran IPA dengan menggunakan Contextual Teaching and Learning (CTL) di SD AL-Azhar Wonosari dilakukan dengan tahap-tahap sebagai berikut: komponen kontruktivisme, komponen inqury, komponen bertanya, komponen masyarakat belajar, komponen model, komponen refleksi dan komponen penilaian. Pada masa pandemi covid-19 strategi yang diterapkan oleh sekolah adalah dengan membangun hubungan baik dengan orang tua yang mana sebagai pendamping belajar peserta didik di rumah. Kendala yang dihadapi pada penerapan pembelajaran CTL pada mata pelajaran IPA di masa pandemi covid-19 ketika pembelajaran dilakukan dirumah yaitu pertama, orang tua terkendala dalam mendampingi anak belajar karena aktivitas dan kesibukan. Kedua, terjadi miskomunikasi karena ada beberapa informasi yang tidak dipahami oleh orang tua.