bluuebunny/crossref_metadata_2025 huggingface dataset:
Diseño social como estrategia para el desarrollo de la sociedad
Authors: Henao Ortiz Jessica Lorena
Published: February 2023

En la búsqueda por crear un equilibrio entre el diseño industrial y las afecciones que inconscientemente este ha generado al mundo, se forman diversas estrategias de diseño que buscan ser más amigables con su entorno, no solo a nivel ambiental sino también social. Estas estrategias ofrecen soluciones de diseño en las que se involucra a las comunidades que se ven directamente afectadas, haciéndolos parte de la solución, para brindar una mayor apropiación y aceptación con los resultados obtenidos. A su vez, se manifiesta una retribución a nivel laboral, situación que pueden apreciarse en el caso del proyecto Lanitas de Vida, con la comunidad del colegio Carlos Castro Saavedra.
Mobiliario infantil para actividades manuales creativas
Authors: Botero Sepúlveda Daniela
Published: February 2023

MOBBI es un mobiliario infantil para actividades manuales creativas, enfocado a niños de 7 a 9 años de edad; permite realizar actividades de aprendizaje de las artes plásticas en general, de una manera cómoda y práctica. Tiene como objetivo optimizar al máximo los materiales y procesos productivos de la región. Sus piezas fueron diseñadas a partir de formas geométricas y sus acabados orgánicos permiten que el niño las pueda manipular con facilidad, guiado por un encargado. Los colores empleados estimulan la creatividad y la habilidad artística; además, fijan la concentración del niño y crean un ambiente de enseñanza adecuado para su aprendizaje.
Dispositivo de protección solar para la piña en la etapa final del cultivo
Authors: Rivera Velásquez Alexandra
Published: February 2023

Se expone el proyecto de un artefacto de diseño industrial enfocado para el sector agroindustrial, que transforma los productos de la agricultura en beneficios en los consumidores, haciendo procesos de selección de calidad, clasificación (por tamaño) , embalaje, empaque y almacenamiento de la producción agrícola, a pesar de que no haya transformación en la piña. Se harán propuestas que contribuyan al mejoramiento de protección solar, evitando daño físico en el fruto.
NARATIVE REVIEW PEMANFAATAN INTERNET-OF-THINGS UNTUK APLIKASI SEED MONITORING AND MANAGEMENT SYSTEM PADA MEDIA TANAMAN HIDROPONIK DI INDONESIA
Authors: Fuada Syifaul , Setyowati Endah , Aulia Galuh Inti , Riani Dwi Wahyu
Published: February 2023

Hydroponic plants develop every time, and until now, many hydroponic plants are managed by the Indonesian people. The steps for producing hydroponic plants are seeding, transplanting, making hydroponic media, providing hydroponic nutrition, conditioning the water pH, and harvesting. One of the important steps to growing good plants is seeding. Therefore, a system connected to the IoT (IoT) is needed; this system acts as the main processor that can send data from sensors to users. This literature review aims to provide awareness about hydroponic plants and help farmers and the general public to more easily monitor hydroponic plants so that all people can easily do hydroponics at home using the IoT. The method used to compile this research is a literature study, searching for relevant scientific articles on the Google Scholar database using several keywords - seeding, hydroponics, IoT, and microcontrollers, with the year of publication 2016-2022. The IoT application for hydroponics provides many benefits, such as easy control for farmers from the sowing stage to irrigation. However, in the production process, the system requires appropriate parameters. The IoT-based hydroponic system facilitates seeding maintenance with the ESP8266 microcontroller, Arduino Uno microcontroller, DHT-22 sensor, PH-4502c, and TDS sensor.
PENGGUNAAN OTIMASI ATRIBUT DALAM PENINGKATAN AKURASI PREDIKSI DEEP LEARNING PADA BIKE SHARING DEMAND
Authors: Hidayatulloh Syarif , Mustajab Muhammad Amar , Ramdhani Yudi
Published: February 2023

Bersepeda kembali populer pasca pandemi Covid 19 yang terjadi di Indonesia kemarin. Dalam studi ini, algoritma yang paling umum digunakan diuji, termasuk Neural Nets, Generelized Linear Models, Support Vector Machines, Random Forests, dan Deep Learning. Penelitian dilakukan dalam lima model algoritma prediktif dengan sepuluh percobaan menggunakan validasi silang, dan dipilih nilai akurasi terbaik. Berdasarkan perbandingan algoritma tersebut, algoritma Deep Learning memiliki nilai Accuracy sebesar 90% dan AUC sebesar 0,770. Validasi Croos dengan X fold adalah dasar dari algoritma perbandingan ini. Algoritma pembelajaran mendalam ditemukan memiliki nilai akurasi 90%, yang 4-5% lebih rendah dari empat algoritma lainnya. Dengan peningkatan yang signifikan pada penelitian tersebut, maka nilai akurasi untuk optimasi bobot menggunakan algoritma Forward optimize adalah sebesar 95,63%. Berdasarkan hasil percobaan, peneliti menyimpulkan bahwa percobaan tersebut berhasil meningkatkan nilai akurasi dari algoritma deep learning.
SISTEM PENUNJANG KEPUTUSAN PENILAIAN KINERJA KARYAWAN MENGGUNAKAN METODE SIMPLE ADDITIVE WEIGHTING (SAW) PADA PT. LIEBRA PERMANA JAKARTA
Authors: Novianny Vanny , Heriyanto
Published: February 2023

Vanny Novianny (11212976), the Decision Support System for Employee Performance Evaluation Using the Simple Additive Weighting (SAW) Method at PT. Liebra Permana Jakarta

The employee performance appraisal process is a complex process and requires careful consideration. Employee performance appraisal at PT. Liebra Permana Jakarta is carried out by looking at several criteria such as the value of Attendance, Performance, Discipline, and Initiative. However, the system at PT. Liebra Permana Jakarta is still manual, therefore the authors are trying to create a Decision Support System program in evaluating employee performance using the website-based PHP and MySQL programming languages. This system has a better advantage when compared to manual calculations. The method used in assessing employee performance is by using the Simple Additive Weighted (SAW). The results of this study apart from the DSS application website are calculations using the Simple Additive Weighted method, with reference to the criteria for Absence, Performance, Discipline and Initiative, normalization and ranking, the best employee with the highest score is Felicia.
Keluarga Sakinah Mawaddah Wa Rahmah Menurut Al-Qur’an Perspektif Wahbah Az-Zuhaili
Authors: Andriani Ririn , Zaini Hasan
Published: February 2023

Based on a vast social phenomenon that craves and praises perfect, perfect families. Yet many do not know what the perfect family represents, what its purpose is, what its criteria are and how to do it. The purpose of this research is: (1) to describe and analyze what the purpose and criteria of the family sakinah mawaddah wa rahmah according to the al-qur'an wahbah az-zuhaili perspective. (2) to describe and analyze how to realize the family of sakinah mawaddah wa rahmah according to the al-qur'an wahbah az-zuhaili perspective. The study included research for literature (library research) by means of thematic or maudhu 'i interpretation analysis.
Pengharaman Khamr dalam Al-Qur’an (Studi atas Tafsir Tarjuman Al-Mustafid Karya Abd. Rauf As-Sinkili)
Authors: El-Feyza Muhafizah , Hidayat M. Riyan
Published: February 2023

This paper describes the prohibition of khamar in the Qur'an. As we know, the abuse of khamar is now not only limited to people whose economy is peaking, but also to the underprivileged, not only among non-students, but also students. Reflecting on this, if it continues to be allowed, it will damage from generation to generation due to the abuse of khamar. Therefore, it is important for us to know how the prohibition of khamar in the Qur'an. The purpose of this study is to find out how the interpretation of the verses about the process of prohibiting khamar in Tarjuman Mustafid's interpretation so that it can increase knowledge in the current era. This research uses qualitative research with descriptive-analytic approach. The results of this paper are based on the interpretation of Abd. Rouf As-Sinkili that the prohibition of khamar begins with the presence of fruits that can be used as khamar to become haram, but there are also those that make it a useful drink until it becomes halal. Then, it is explained that in khamar there are big and small dangers of benefit, in the next stage Allah forbids drinking khamar only during prayer, and then khamar is absolutely forbidden because consuming it is a big sin.
Pakaian Muslim: Keseimbangan Antara Syariah dan Mode (Interpretasi QS. Al-A’raf [9]: 26 Dengan Pendekatan Semiotika Saussure)
Authors: Syahputra Satria Tenun
Published: February 2023

Muslim clothing is not only about covering the aurat, but there is one more important essence behind clothing, namely to beautify the appearance or in contemporary language also called fashion. This research is a library research that is analytical-critical by analyzing QS. Al-A'râf [9]: 26. The surgical instrument used in this study is Ferdinand D Saussure's semiotic approach which is also known as binary opposition, but only one pair of binary oppositions is used, namely langue and parole. From this research, it is stated that maintaining a balance between the main purpose of clothing as an aurat cover with secondary purposes as decoration, fashion and appearance support is the guidance of the Quran. This approach needs to be developed to gain an understanding that is in accordance with the development of the times and science and is in line with the cosnep Universality of the Quran which carries the concept of "al-Qur'ân shalih li kulli az-zamân wa al-makân".
Pendidikan Anak Dalam Al Quran
Authors: Aisyah Nasyiatul
Published: February 2023

The education of a child is an important thing that every parent must pay attention to. How the patterns and techniques of a good education are basically already in the Quran. This study aims to reveal how the use of the word child in the Quran, apar money in the scope of education, methods and content of education. This research is a literature research, using content analysis. From the study it was concluded that first: in the Quran the word child is expressed five terminologies; ibn, walad, shabiyyun, thiflun, and dzurriyah, second: Children's education is intended to be guidance, maintenance, and nurturing of the potential possessed by the child so that he can grow optimally to achieve educational goals in accordance with the teachings of Islam (Qur'an). The methods of education according to the Qur'an are: exemplary, habituation, advice, deliberation, supervision/attention and stories. And the content or meter of education according to the Qur'an is: aqidah education, moral education, worship education, physical education, ratio education, and social education.
Authors: Kulsum Sayyidah Sekar Dewi , Mustofa Muhamad Bisri , Wuryan Siti , Ja’Far A.Khumaidi , Mahmudah Siti
Published: February 2023

Penelitian yang dilaksanakan berjutuan untuk dapat mengetahui proses pelaksanaan layanan pinjam dan meminjam uang yang mana berbasis teknologi informasi serta legalitasnya terhadap penerapan bunga yang mana ditinjau dari Pandangan hukum ekomoni islam. Adapun metode pada penelitian ialah menerapkan pendekatan kualitatif yakni dengan melakukan proses pengolahan pada data sekunder yang berisi berbagai kajian teoritis yang memuat tentanf P2P lending yang mana dianalisis berdasarkan pada kerangka teori menurut Maqāṣid Asy- Syarĭ’ah. Dari hasil yang diperoleh, bahwa layanan pinjam dan meminjam uang di Indonesia masih memiliki berbagai macam kelemahan, seperti belum adanya penetapan besaran maksimum bunga pinjaman, ketentuan penyelesaian sengketa, sanksi bagi Platform yang tidak terdaftar di OJK, dan sosialisasi mengenai regulasi layanan yang belum maksimal. Secara Hukum Ekonomi Syariah, transaksi ini tergolong pada utang-piutang (Al - Qarḍ). Proses Perikatan dan penerapan bunga-berbunga di dalamnya dipenuhi unsur Maysĭr, Garār, dan Ribā. Sehingga lebih banyak muḍarat dan tidak sesuai dengan Maqāṣid Asy- Syarĭ’ah. Sehingga disimpulkan , Legalitas Peer To Peer Lending dengan penerapan bunga-berbunga ditinjau dari Perspektif Hukum Ekonomi Islam adalah ḥarām
Authors: Afif Mufti , Lesmana Meichio , Basith Abdul , Rizqullah Maula Falih
Published: February 2023

Sejarah mencatat bahwa pada masa Rasulullah SAW, masjid berperan penting dalam perkembangan umat Islam. Pada saat itu masjid tidak hanya berperan sebagai tempat ibadah, akan tetapi masjid memiliki peran yang lebih penting yaitu sebagai pusat pendidikan dan pemberdayaan umat Islam yang diatur dan di organisir oleh pengurus masjid. Oleh karena itu, sangat diperlukan strategi manajemen masjid dalam memberdayakan dan memakmurkan masyarakat sekitar sehingga dapat menyatukan prinsip dari pengurus masjid sendiri. Oleh karena itu perlu adanya strategi manajemen masjid dalam memberdayakan dan memakmurkan masyarakat sekitar sehingga dapat menyatukan prinsip dari pengurus masjid sendiri. Penelitian ini bertujuan untuk mengetahui bagaimana strategi pemberdayaan ekonomi berbasis masjid Al Falah Sragen dalam peningkatan kesejahteraan masyarakat. Metode yang digunakan adalah kualitatif deskriptif dengan Teknik pengumpulan data memalui observasi, wawancara, dan dokumentasi yang dianalisa menggunakan analisis SWOT dan triangulasi. Hasil dari penelitian ini adalah bahwa strategi pemberdayaan ekonomi berbasis masjid yang dilakukan Masjid Al Falah Sragen dalam peningkatan kesejahteraan masyarakat yaitu dengan menganalisis lingkungan, perumusan strategi, implementasi strategi, dan evaluasi strategi. Perlu diketahui, dengan adanya beberapa program pemberdayaan ekonomi berbasis masjid, bahwa dampak pemberdayaan ekonomi kepada masyarakat sekitar setelah diadakannya program tersebut yang dilakukan oleh Masjid Raya Al Falah Sragen sangat berdampak positif dan signifikan bagi masyarakat sekitar.
Edukasi Penelitian Tindakan Kelas bagi Guru Biologi untuk Meningkatkan Kompetensi Profesionalisme
Authors: Sadikin Ali , Siburian Jodion , Hamidah Afreni
Published: February 2023

Bagi guru menulis Penelitian Tindakan kelas (PTK) adalah kewajiban. Dengan PTK guru dapat meneliti dan mengembangkan pembelajaran yang berkualitass. Namun sayangnya, guru-guru di SMA N 11 Muaro Jambi masih memiliki kekurangan dalam menulis PTK. Berdasarkan observasi penyebabnya adalah waktu untuk menulis yang masih kurang, mereka sibuk mengajar, ada juga yang mengalami kendalam dalam Menyusun instrument pengambilan data. Maka dari itu tim PPM FKIP Universitasa Jambi akan mengadakan workshop penelitian Tindakan kelas Bagi guru-guru SMAN 11 Muarro Jambi. Metode pelakasanaan kegiatan meliputi pemaparan Langkah-langkah Menyusun PTK, Menyusun instrument dan praktik Menyusun PTK.  Kegiatan terakhir adalah evaluasi kegiatan dan apabila ada yang masih membutuhkan bimbingan maka akan dibimbing secara berkala.
Pemberdayaan Mayarakat melalui Program Bimbingan Belajar Keagamaan
Authors: Wahyudi Dedi , Sugeng Anggoro , Anggraini Sujiwatti Damarsasi , Anggraeni Alfi , Fatimah Nur Aini , Hayati Dwi Kurnia
Published: February 2023

Kuliah Pengabdian Masyarakat kolaborasi antara dosen dan mahasiswa IAIN Metro dilaksanakan di Kelurahan Banjarsari. Pengabdian diawali dari kegelisahan tim dengan keadaan Covid-19 varian Omicron yang membuat pembelajaran dalam jaringan. Guru di beberapa sekolah hanya menjelaskan suatu materi pelajaran dengan menggunakan video di YouTube dan memberikan pekerjaan rumah melalui WhatsApp. Hal ini membuat anak-anak mengalami kesulitan dalam mengerjakan tugas sekolah karena belum paham akan materi tersebut. Maka tim pengabdian mengadakan bimbingan belajar guna membantu anak-anak dalam menyelesaikan tugas sekolah. Kegiatan dilaksanakan di Kelurahan Banjarsari berupa bimbingan belajar gratis di RW 01 dan RW 4, mengajar ngaji di TPA Al-Hidayah, mengajar di PAUD Al-Hidayah, mengajari anak-anak membuat kerajinan tangan, dan lainnya. Terdapat banyak sekali anak-anak di Perumahan Griya Lempuyang yang mana mereka lebih banyak bermain bersama teman-temannya dari pada belajar. Maka perlu adanya kegiatan pengabdian ini untuk mengajak anak-anak dalam berbagai pelajaran.

Kata Kunci: Pengabdian, Pembelajaran, Covid-19
Pelatihan Keterampilan Berpidato pada Santri TPA Masjid An-Nur Malangjiwan
Authors: WZ Syaifullah , Rauf Shofwan Anwar Abdul , Hafidah Hafidah , Maslamah Maslamah
Published: February 2023

Artikel ini bertujuan untuk memaparkan kegiatan pengabdian kepada masyarakat prodi Bahasa dan Sastra Arab fakultas Adab dan Bahasa UIN Raden Mas Said Surakarta berupa pelatihan keterampilan berpidato yang dilaksanakan di Masjid An-Nur Malangjiwan kecamatan Colomadu Kabupaten Karanganyar. Pengabdian kepada masyarakat ini diadakan pada tanggal 17-19 Maret 2022. Dalam pelaksanaannya pengabdian ini diawali dengan penyampaian materi kepada para peserta yaitu santri TPA Masjid An-Nur Malangjiwan. Selanjutnya diadakan pelatihan yang didampingi oleh tim PKM BSA kepada santri TPA Masjid Malangjiwan. Permasalahan yang ditemui sebelum diadakan pelatihan yaitu santri belum pernah mendapatkan pelatihan keterampilan berpidato. Padahal santri-santri ini diharapkan sebagai pelanjut generasi umat yang mahir dan terampil menyampaikan pesan-pesan keagamaan di depan umum. Setelah disampaikan materi seputar pidato dengan metode ceramah dan diskusi, para santri akan difasilitasi untuk mempraktekkan kemampuan berpidato. Oleh karena itu, santri memiliki kemampuan tidak hanya materi keagamaan tapi juga terampil menyampaikan di depan publik. Pelatihan keterampilan berpidato ini diharapkan menghasilkan komunitas yang mengerti dan terampil dalam menyampaikan pesan-pesan keagamaan di depan publik.
Engineering method of calculating laminated timber elements reinforced with composite tapes
Authors: Mykhailovskyi Denys , Komar Oleh , Komar Mykola
Published: February 2023

Annotation. In today's world, construction requires environmentally friendly materials that cause minimal damage to the environment. At the same time, they must have great strength and be resistant to various types of external influences. Timber structures, which are made of renewable natural materials and have a relatively high strength, can rightfully be considered as such material. Despite the fact that timber itself has certain negative properties, namely the tendency to shrink and swell, rot, anisotropy of properties, which requires special attention in construction, in laminated timber structures (LTS) these disadvantages are already more manageable. Beams are one of the main laminated timber structures. Laminated timber beams reinforcement allows to significantly increasing their stiffness and strength.

The article proposes a methodology for calculating laminated timber elements of rectangular section reinforced with composite tapes. Refined formulas for determining the efficient geometric and mechanical characteristics are provided. The proposed method was compared with another analytical method of calculation and with the numerical method of modeling in the LIRA-CAD software complex using the finite element method. It was proved that this method of reinforcing laminated timber structures is promising and relevant.
Mathematical model of the impact of 12.7 mm kinetic action ammunition on an armored obstacle with additional armor
Authors: Dachkovskyi Volodymyr , Datsenko Ivan , Golub Viktor , Sedov Sviatoslav , Kondratiuk Ihor , Pavlov Denys , Mazurenko Valerii , Kovalov Oleksandr
Published: February 2023

Abstract. In today's conditions, there is a need to find new and effective ways (means) to protect armored vehicles and increase their protection against modern means of destruction, as evidenced by the analysis of the damage received by armored vehicles during the repulsion of armed aggression against Ukraine.

Various methods and means of additional protection always require practical verification of their feasibility.

The purpose of this article is to present the main approaches to assessing the level of stability of an armored obstacle with additional armor and to build a mathematical model of the impact of 12.7 mm kinetic munitions on an armored obstacle with additional armor based on experimental data.

To assess the relative properties of the armor barrier to the destructive energy of the munitions, the experimental-statistical method of mathematical modeling of the process of influence of the energy of the munitions on the armor barrier of armored vehicles was used, in which the experiment is considered as the main source of information about the process, and the methods of probability theory and mathematical statistics are the main means of processing the results of the experiment.

The experimental study allowed to check the resistance of the armored barrier with additional armor to ammunition of 12.7 mm caliber, which destroys it under the action of kinetic energy.

As a result of a multifactorial experiment, experimental data were obtained. Using the experimental data, a mathematical model of the impact of 12.7 mm kinetic ammunition on an armored obstacle with additional armor was built, which takes into account the angle of the meeting of the munition with the armored obstacle, the distance from the armored obstacle to the additional armor, the thickness of the additional armor. This mathematical model can be used to find the optimal additional armor of armored vehicles, taking into account the angle of inclination, the distance of additional armor to the main armor and the thickness of additional armor.
Assessment of robustness of hinged-bar systems
Authors: Perelmuter Anatolii
Published: February 2023

Typically in structural design, foreseeable loads are assumed in a dimensioning exercise. Structures can, however, be exposed to largely unforeseeable events such as intense environmental phenomena, accidents, malicious acts, and planning or execution errors. This circumstance determines the interest in the problem of structural robustness, which has been the subject of many recent works.

This paper focuses on methods for assessing the robustness of hinged bar systems, considering truss structures as an example. They are the simplest in terms of computation, but make it possible to fully illustrate the proposed approach.

First, the differences between progressive collapse (description of the process) and the disproportionate propagation of local failures (description of the state) are analyzed. The generalizing nature of the concept of robustness and its differences from the concept of invulnerability are pointed out.

The paper considers the problem of measuring robustness. The known quantitative estimates of robustness are analyzed focusing on estimates that are invariant with respect to the stress state, as more general ones. The paper considers estimates that use such properties of the stiffness matrix as the condition number, or based on a comparison of the determinants of the original and changed stiffness matrices. It is pointed out that the degree of static indeterminacy can serve only as a necessary, but insufficient measure of robustness.

The paper considers a well-known method of robustness assessment using a redundancy matrix determined by the forces that must be applied to assemble the system from elements with the length different from the design one. This method is opposed to the use of a projection matrix, the main diagonal elements of which indicate the degree of participation of the bars in ensuring robustness. The main properties of the idempotent projection matrix are considered. The paper illustrates the possibility of recalculating the projection matrix for the changed system with the help of the Jordan elimination step. A simple example demonstrates assembling and changing the projection matrix.

In addition to the failure of the bar, the case of its damage (partial failure) is also considered, it is shown how it affects the change in the projector and the redistribution of internal forces.
Modified direct method in static problems of axi-symmetric non-thin plates
Authors: Koshevyi Oleksandr , Levkivskyi Dmytro , Chubarev Anton , Yansons Maryna
Published: February 2023

The initial equations for solving the axisymmetric problem are given and consideredboundary conditions on the end surfaces and average section of the design element. As a result, we get a system of partial differential equations that can be solved by the numerical-analytical (modified) method of straight lines. The transformation of the reduced equations of equilibrium in parts, as well as the reduced models of the boundary conditions of the end surfaces and the average section, are shown. As a result, a boundary value problem for the system of reduced differential equations in ordinary derivatives written in the Cauchy form with boundary conditions of the general form is obtained.

The thermal conductivity of the cylindrical wall was calculated, the results were compared with analytical calculations and results of other authors, which confirms the reliability of the developed methodology.

A computer simulation of the stress-strain state of a cylindrical structural element due to the complex action of temperature, force and kinematic effects was carried out.

Important conclusions have been made for the use of the modified method of straight lines, which is free from the complications that arise when using the classical method of straight lines.
Analysis of the interaction of finite-dimensional surface vibrators with a compacted linear-viscous-elastic medium
Authors: Chovnyuk Yurii , Kravchuk Volodymyr , Pryimachenko Oleksii , Cherednichenko Petro
Published: February 2023

This paper develops an approach to solving problems about the excitation of vibrations/vibrations by sources of waves in linear-viscous-elastic media modeling compacted concrete/building mixtures with depth-variable mechanical characteristics. An analysis of contact stresses and forces occurring under the oscillating stamp, the types of waves generated in the medium and on its surface, and the energy carried by each type of wave for different vibration sources are discussed. The previously described but unspecified for such problems, phenomena of resonance in deep layers of the medium of great thickness and the eigenmovement of the vibration stamps themselves are proposed. We present the technique of reducing the problem of dynamic interaction of finite-dimensional surface vibrosources with compacted linear-viscous-elastic medium to the possible ways of its solution. It is important to comprehensively investigate the peculiarities of vibrations of the stamp-elastic/linear-viscous-elastic medium system, but the integral equations arising here are a serious obstacle to research. Attempts to circumvent these difficulties give rise to a number of approximate, "engineering" approaches, within which the response of the medium (compacted by the vibrating field of the concrete/concrete mixture) is modeled by elastic and viscoelastic (damping) links with some "attached mass". The characteristics of elastic elements and the value of the attached mass are selected, as a rule, from experimental data. The oscillations of the finite-dimensional system resulting from this approach are determined by the usual theoretical methods of mechanics. Such an approach is especially widely used in construction calculations. It gives the possibility to determine the static settlement of structures with a sufficient accuracy and provides satisfactory results at a certain, fixed frequency. When analyzing vibrations in a wide range of frequencies, the linear-viscous-elastic medium is substantially infinitely measurable system with its own resonances and complex dispersion properties, and therefore cannot be approximated by a finite set of springs. In order to identify the characteristic features of the dynamics of massive stamps on a linear viscoelastic basis in this paper we carried out: calculations using methods of solving integral equations; analysis of numerical results and identified qualitative effects.
Calculation of optimal parameters of the foundation for woodworking machines with large dynamic loads
Authors: Ozymok Yurii , Pavlyuk Roman , Kapral Yurii
Published: February 2023

The groundwork for machines with dynamic loads should meet the calculation requirements regarding strength and suitability for regular operation and the need for occupational safety standards regarding acceptable vibration levels. In addition, fluctuations in the groundwork should not cause a harmful impact on technological processes, equipment, and devices located on the foundation or outside it.A mathematical model of foundation vibrations and a methodology for calculating the foundation parameters are presented, taking into account dynamic loads from unbalanced masses and dynamic characteristics of the ground base.The mathematical model is a solution to the differential equation of the foundation vibrations.The article refutes a number of conventional concepts regarding the body of the foundation, its base, the geometric center and the damper between the foundation and the ground.The basis for determining the vibration damping modulus is the logarithmic decrement of vibration damping.It is constant and depends on the elastic and damping properties of the soil, as well as the installation mass. The more significant the logarithmic decrement, the faster the extinction occurs. It was found that an increase in the vibration resistance coefficient allows reducing the mass of the installation with a simultaneous increase in the area of its base, so the mass acts as a limitation.It was established that to ensure vibration resistance and prevent the resonance of the foundation, the ratio of the frequency of its natural vibrations to the frequency of forced vibrations should be at least 1.5.The calculation of the optimal mass, the base area and the depth of foundation laying is carried out according to the criterion of the minimum cost of its construction.An application software has been developed for the calculation. The projection methodology for the foundation for the machine with large dynamic loads is for a two-story sawmill.
Numerical implementation of multicriteria parametric optimization of minimum surface shell on a square contour under thermforce loading
Authors: Ivanchenko Hryhorii , Koshevyi Oleksandr , Koshevyi Oleksandr
Published: February 2023

The article considers the numerical study of the multicriteria parametric optimization of the minimum surface shell on the square contour under thermoforce loading. The mathematical algorithm for solving the problem of multicriteria parametric optimization of minimal surfaces shellsis described: the necessary output data are given, which target functions can be used, design variables and constraints are described. The influence of initial data on the numerical study of multicriteria parametric optimization was shown. The calculation of necessary components and matrices for multicriteria parametric optimization of minimal surfaces shells, as well as methods of its simplification, depending on the initial data was made. Was shown in which cases the algorithm is executed successfully, and where it was necessary to return to change the initial parameters.

The sensitivity analysis of multi-criteria parametric optimization of minimal surfaces shells is presented. In article reveals the inner essence of the structure's work while the optimization calculation was done. Work with internal forces and stresses, the connection with the finite element method and its stiffness matrix were made.

The process and methodology of setting ofthermoforce loadare revealed.All initial parameters, as well as how the load works with multicriteria parametric optimization are shown.

The numerical experiment made it possible to reduce the weight of minimum surface shell on the square contour by 5%, and the movement along the coordinate axes by 38%, which are the target functions of multicriteria parametric optimization. Redistribution of the thickness of the minimum surface shell on the square contour from 1 mm to 31 mm was realized. The interaction of the objective functions is shown - they conflict, as well as the graphs of changes in Mises stresses, shear stresses and strain energy, which makes it possible to reveal the internal processes of multi-criteria parametric optimization of the minimum surface shell on a square contour.

Subject of this study is an interesting applied problem for construction mechanics, as it is the first time to display the application of two types of optimization on one research object.
Compilation of calculated combinations in according with EN 1990
Authors: Perelmuter Anatolii
Published: February 2023

The article addresses one of the main issues that arise in the planned development of a new version of domestic standards, which is aimed at closer convergence with the European normative document EN 1990 in terms of calculation methods. If these methods are not fully accepted, then at least the principled positions are agreed, if possible preserving the domestic tradition

An overview of the approaches of European standards EN 1990 to the compilation of design combinations of effects on building structures is given. The information on the method of choosing the calculated combination of influences of different groups of limit states taking into account different types of representative values of variable influences is generalized. Discrepancies with the methods of normative documents in force on the territory of Ukraine (DBN) on the calculation of building structures are indicated. Attention is drawn to the variability of Eurocode rules for the construction of settlement connections in relation to the situations under consideration, such variability is absent in the DBN.

A compromise approach is proposed, which combines the principles of EN 1990 with the accumulated domestic experience and allows to significantly reduce the growth of design loads. The examples show that the increase in design effort causes significantly less increase in the cost of building materials.
Study of hydrodynamic parameters of a self-operating sluge to prevent flood spills
Authors: Mandryk Oleg M. , Mykhailyuk Roman I. , Artym Volodymyr I. , Mykhailyuk Vasyl V.
Published: February 2023

All methods of combating the flooding of populated areas are directly related to the execution of significant volumes of earthworks, the construction of special structures, and therefore require comprehensive analysis and substantiation and the selection of the most economically feasible and affordable project options during design.But analyzing the main methods of protecting the territory of settlements from flooding, it should be noted that even with their optimal use, the problem of flooding territories due to river tributaries remains. Therefore, it is worth focusing attention on the search for a technical solution that would make it possible to pump water from the tributary to the river without using expensive, complex in design and energy-consuming equipment. One of the promising solutions is the use of automatic gateways.The purpose of the work is to study the hydrodynamic parameters of the proposed design of the self-acting lock to prevent flood spills.The design of a hydrotechnical structure (self-acting sluice to prevent flood spills) is proposed, which is designed to prevent flooding of territories due to river spills and can be used to regulate the water level in hydraulic systems. It is shown that the use of the developed structure will make it possible to significantly reduce the negative consequences of possible flood spills in the territories.A three-dimensional model of the self-acting sluice was developed in the SolidWorks program to confirm its performance and study the hydrodynamic parameters of the self-acting sluice. The simulated simulation of the proposed design of the ejector pump in the FlowSimulation software module confirmed its efficiency and made it possible to determine the distribution of pressures and fluid movement speeds in it. It was established that the flow rate of the liquid flowing through the cross-section of the pipeline for water intake from the tributary is 0.055 m3/s at a river flow speed of 3 m/s.
Influence of military actions on the process of the formation of precipitation
Authors: Voloshkina Olena S. , Goncharenko Artem V.
Published: February 2023

This work concerns the study of the influence of military actions on the development of global ecological processes, in particular, the fall of acid rain from individual single explosions. A mathematical model is proposed, which takes into account the emission of pollutants into the subcloud washout zone and the kinetics of the condensation process. The concentration of combustion products in the atmosphere at the level of three to five diameters of the explosion area (the area of the formed explosion funnel) is found using the theory of a convective jet from a warm source to the environment. At the same time, we determined the speed of warm air that rises above the area of the explosion, the average temperature in the transition section of the convective jet, and the flow rate of polluted air in the upper part of the jet. The paper presents a system of dimensionless non-stationary differential equations for a high unshaded source, which can be used to determine the dispersion of the main acid-forming substances in the Boussinesq approximation with the variables "eddy velocity – current function – temperature – concentration" with appropriate initial and boundary conditions. Sulfuric anhydride was considered as an example of the main acid-forming substances and the most dangerous and toxic compounds of explosion products. The proposed mathematical model can be used to forecast the possible fall of acid rain on the territories adjacent to single explosions, thereby making a forecast of changes in environmental risk as a result of military operations for the environment and the population. and will make it possible to determine the zones of influence and dispersion from the place of the explosion.
Influence of climate change and enlargement of irrigated soils on qualitative indicators of river water
Authors: Ganiyeva Sachli A. , Danziyev Ramal M. , Gurbanov Eldar A. , Gurbanova Zumrud R.
Published: February 2023

It was determined that beginning from 1990s increase happened in temperature and amount of the precipitations significantly reduced. These climate changes affected the quantitative indicators of the Kur water. The ion content of the river water considerably rose in 2018 in comparison with 1952 and 1990s. This rise was more intensive towards the river mouth. In 1952 the ion sum in the Girag Kasaman station was 419,0 mg|l, but in 1990 this figure was 608,3 mg|l, in 2018 it was 620,5 mg|l. But in Banka near the river mouth a quantity of ions was 865,0 mg|l in 1952, 874,7 mg|l in 1990, but it was 888,1 mg|l in 2018. The climate alteration affected mineralogical composition and amount of biogenic elements. A quantity of minerals legally rose while approaching the river mouth. Especially this increase has risen even further for 30 years.Change of the Kur water quality in this direction causes formation of some problems in irrigation use. Tons of harmful salts enter every hectare of land. The undrained and old unrepaired drained soil are salinized and create condition for degradation.
Information technology of IT-infrastructure management architecture elements
Authors: Dovgiy Stanislav O. , Kopiika Oleh V. , Kozlov Oleksii S.
Published: February 2023

The development of the System Architecture of the IT-infrastructure focused on the use of modern Data Centers is considered. At the same time, it is envisaged to create components that describe: general approaches to building a system architecture; IT-services – information technologies that solve the task of providing IT-services; logical model of IT-infrastructure. Formulated logic of IT-infrastructure construction: IT-infrastructure architectures define a set of services. IT-services are provided to three groups of clients. IT-services and clients are connected by 5 implementation scenarios. The integration of IT-services is determined by 5 architectures. As IT-services, we understand information technologies aimed at maintaining the following elements in a technically good state: network devices, computing equipment, data storage devices, automatic software deployment services, network services, perimeter protection services, directory services, file and print services, data management services, business application services, IT-management services, archiving and recovery services, certificate management services, integration services. Architectures define the fundamental principles of building IT-services and their relationship. Also, requirements for the creation of IT-services are formed on the basis of the architecture. One of the most important architectures is architecture of IT-infrastructure management. The architecture of the management system ensures the necessary level of IT-services of the Data Center due to the organization of three components – personnel, processes, technologies. The tasks of the architecture are: use of processes and information technologies to identify and minimize failures of IT-services; ensuring a high degree of integration of information technologies; ensuring response to changes in system parameters and performance of service functions in real time. As an example, the management function of the IT-service “network administration” (monitoring and control of configuration management services, coordination of changes, remote management and debugging) is considered. The algorithmic synthesis of programs and devices network management is considered, which consists in the construction of a functional scheme of control devices in two stages – abstract and structural synthesis, and all the steps of its solution and subsequent hardware synthesis are determined.
THE ALGORITHM OF THE FUNCTIONAL AND COST ANALYSIS IN COST MANAGEMENT OF THE
EDUCATIONAL INSTITUTIONS ON THE BASIS OF THE SAVINGS
Authors: Boiko Yevheniya , Diachenko Yuliya
Published: February 2023

Lean production technologies are gradually being introduced into all spheres of
life, as well as in the sphere of education. Insufficient funding is one of the problems
of educational institutions, so it is important for educational institutions to apply
the concept of lean production, which will reduce management losses. Many scientists
have paid attention to the development of the concept of lean production. This paper
reveals the role and importance of functional-cost analysis in the management of
educational institution costs. The main economic prerequisites for the introduction of
functional-cost analysis in the practice of the educational institution are analyzed.
This method is one of the effective ways to reduce costs. The preconditions for the
application of its elements in higher education to support decisions in cost management
are assessed. An algorithm for conducting a functional-cost analysis of an educational
institution on the basis of thrift is proposed. The differences of this method from
traditional methods of economic analysis are described. The scenario of conducting
functional-cost analysis in an educational institution is presented. Globalization of
the economy makes adjustments to the management system of educational institutions and
therefore the application of functional cost analysis in educational institutions can
significantly improve their financial condition, reduce unreasonable and irrational
costs, improve the quality of training, increase productivity and motivation of
employees and teachers. improve the well-being of people and the quality of the
environment within the institution, which helps to attract more applicants.
CONVERGENT-DIVERGENT METHODOLOGY OF EDUCATIONAL SPACE HARMONIZATION BASED ON
BUSINESS PROCESSES OF EDUCATION DEVELOPMENT
Authors: Tsiutsiura Mykola , Kryvoruchko Olena
Published: February 2023

The object of research work is the processes and technologies of forming a
harmonized informational and educational space. One of the most problematic places in
connection with the rapid, forced by difficult circumstances in the country, transition
to distance or mixed form of education, lately, is a change in the concept of the
development of higher education. At the same time, in difficult conditions, the role of
information technology (IT) is growing rapidly. Availability, flexibility and
convenience of information systems (IS) should be ensured by improving existing and
developing new technologies capable of supporting both the implementation of the main
educational process and other business processes (BP) of higher education institutions.
In the course of the research, existing types of divergence and convergence in technical
fields were analyzed and used. A convergent-divergent methodology was developed, taking
into account indicators of attractiveness, profitability, values, competences and
indicators of success. A classification of features of models, methods, and IT
management of strategic development of higher education institutions (HEIs) was carried
out. The possibility of implementing the proposed convergent-divergent methodology for
the harmonization of a balanced educational space has been determined. The obtained
results of the developed methodology for the harmonization of a balanced educational
space are implemented in higher education institutions according to the value-competency
approach. This ensures that the active use of available software tools for the formation
of BP of distance learning over the past two years has revealed a significant number of
real problems that were almost ignored before, in the conditions of stationary training.
All these aspects form a real need for the development of new models for the creation of
information systems for the formation of educational space.
DEFINITION AND EVALUATION OF COMPETITORS IN THE DEVELOPMENT OF INTERNATIONAL JOINT
EDUCATIONAL PROJECTS
Authors: Zhu Ting
Published: February 2023

The article is devoted to the problems of defining and evaluating competitors
within the framework of competitive benchmarking projects in education. Various
approaches to defining the definitions of "benchmarking" and "partner benchmarking" in
domestic scientific practice have been studied. The content field of the specified
definitions was clarified by formulating the author's definitions of "benchmarking" and
"partner benchmarking in education". Peculiarities of partner benchmarking in education,
which are determined by the differences between the educational process and the business
processes of industrial enterprises and commercial organizations, have been studied.
Partnership benchmarking in education requires a more creative approach, its algorithms
should be more flexible and less standardized than those used in benchmarking
partnership projects of business entities. In the research process, it was demonstrated
that certain partner benchmarking tools used by commercial companies can, with certain
adaptations, be used in partner benchmarking projects in education. In particular, this
applies to such a tool as the identification of reference leaders by individual
positions in the survey process. It is substantiated that it is more expedient to use
process-oriented benchmarking in education given the fact that the key object of partner
benchmarking in education is the educational process and educational practices that are
its components.