bluuebunny/crossref_metadata_2025 huggingface dataset:
Prototype Sistem Monitoring Banjir Berbasis Thingspeak Menggunakan Sensor HC-SR04 Dan Node MCU Esp-8266
Authors: Hendrian Yayan , Ferdiansyah Ramadhan Gilang , Adi Nugroho Prayoga
Published: June 2024

Bencana banjir merupakan salah satu bencana yang hampir rutin dihadapi masyarakat Indonesia setiap tahun terutama di musin penghujan. Debit air yang banyak dan turun hujan terus-menerus dapat mengakibatkan permukaan air sungai di pintu air Katulampa atau di Manggarai menjadi naik dan dapat mengakibatkan banjir di daerah hilir ketika dibuka. Hal tersebut harus diwaspadai dan dimonitoring secara terus-menerus guna menghindari kerugian material dan korban nyawa melayang. Berbagai peristiwa banjir bandang sering kita dengar dan lihat melalui media cetak maupun elektronik. Oleh karena itu diperlukan sebuah alat yang dapat meminimalisir kerugian yang timbul melalui sistem monitoring yang real time dan notifikasi 24 jam. Alat yang dirancang penulis berusaha mengimplementasikan internet of things pada alat monitoring banjir dengan memanfaatkan sensor HC-SR04 sebagai sensor jarak dan dipadukan dengan Node MCU ESP-8266 sebagai chip mikrokontroller dan thinkspeak sebagai alat bantu monitoring dalam bentuk visual grafik. Diharapkan dengan adanya alat ini, maka ketinggian air yang ada di setiap bendungan dapat dimonitoring setiap saat tanpa harus ke lokasi cukup melalui website thingspeak. Dari hasil pengujian didapatkan bahwa alat dapat bekerja membaca ketinggian air oleh sensor HC-SR04 dan ditampilkan di LCD dan Thinkspeak
PERANCANGAN SISTEM INFORMASI LAYANAN KEPENDUDUKAN BERBASIS WEB PADA KELURAHAN JATIMULYA DEPOK
Authors: Arifin Aries Nur , Heni Hermaliani Eni
Published: June 2024

Pengembangan sistem informasi administrasi kependudukan (SIAK) di Kelurahan Jatimulya bertujuan untuk meningkatkan efisiensi dan kualitas pelayanan kepada penduduk. Metode manual yang saat ini digunakan menyebabkan proses permohonan surat keterangan menjadi kurang efisien dan akurat. Penelitian ini menggunakan metode waterfall, yang terdiri dari tahapan analisis kebutuhan, perancangan sistem, dan implementasi aplikasi berbasis web. Sistem SIAK yang diimplementasikan memungkinkan penduduk mengajukan permohonan surat keterangan secara online, serta memudahkan petugas dalam verifikasi dan pengelolaan data. Hasil penelitian menunjukkan bahwa sistem SIAK dapat meningkatkan efisiensi dan kecepatan pelayanan, serta meningkatkan keakuratan data. Sistem ini juga memberikan pengalaman pengguna yang lebih baik bagi penduduk. Temuan ini penting karena menunjukkan bahwa sistem informasi dapat menjadi alat yang efektif untuk meningkatkan efisiensi dan kualitas pelayanan publik. Kesimpulan dari penelitian ini menekankan perlunya adopsi teknologi dalam pelayanan publik untuk meningkatkan kepuasan masyarakat.
SISTEM INFORMASI PENILAIAN KINERJA KARYAWAN MAGANG DI PT. XYZ DENGAN MENGGUNAKAN METODE SMART
Authors: Nurlita Kartini Gita , Putratama Virdiandry , Armiati Sari
Published: June 2024

Abstrak — Untuk menunjang kemajuan perusahaan tentunya membutuhkan sumber daya manusia yang mumpuni. Sumber daya manusia tersebut salah satunya adalah karyawan magang yang turut membantu dalam melakukan pekerjaan di perusahaan. Demikian juga di perusahaan PT. XYZ yang bergerak di bidang  jasa kurir, logistik, dan transaksi keuangan, salah satunya di divisi pengembangan produk memiliki karyawan magang untuk membantu pekerjaan administratif di bagian pengembangan produk. Di PT.XYZ dilakukan penilaian terhadap karyawan magang secara periodic yang bertujuan untuk mengetahui kinerja karyawan magang sehingga dapat ditentukan pekerjaan yang sesuai. Untuk pengelolaan data karyawan magang ini diperlukan sebuah sistem informasi yang dapat membantu dalam penempatan pekerjaan karyawan magang.
Maka dalam penelitian ini dibangun sebuah sistem informasi penilaian karyawan magang menggunakan metodologi prototype, sedangkan metode yang digunakan untuk penilaian kinerja karyawan magang menggunakan metode SMART. Pada fase analisis kebutuhan sistem digunakan metode Kano untuk mengukur fitur kebutuhan aplikasi, metode Pieces dan five whys untuk analisis permasalahan sistem. Adapun tools yang digunakan untuk memodelkan sistem yang sedang berjalan adalah BPMN. Pada fase perancangan digunakan UML untuk memodelkan proses bisnis dan rancangan data. Bahasa pemrograman PHP digunakan pada fase implementasi, dan untuk pengujian digunakan teknik black box dengan metode boundary value analysis terhadap 22 test case. Luaran dari penelitian ini adalah produk sistem informasi penilaian kinerja karyawan magang dengan menggunakan metode SMART, laporan pembangunan sistem, dokumentasi perangkat lunak buku petunjuk teknis dan jurnal penelitian. Sistem informasi yang dibuat diharapkan dapat membantu dalam proses penilaian kinerja karyawan magang pada divisi bagian pengembangan produk.
Model Waterfall dalam Mendukung Rancang Bangun Sistem Informasi Prediksi Produksi Beras
Authors: Darwati Ida , Hayuningtyas Ratih Yulia
Published: June 2024

Prediksi merupakan suatu proses untuk mengetahui kondisi yang akan datang demi persiapan yang lebih baik lagi, seperti prediksi produksi beras yang bertujuan untuk mengetahui produksi beras pada periode yang akan datang agar persediaan beras dapat tetap memenuhi kebutuhan masyarakat akan beras. Pada penelitian ini penulis melanjutkan penelitian penulis terdahulu yaitu dengan membuat rancang bangun sistem informasi diperuntukkan memprediksi produksi beras menggunakan metode Weighted Moving Average, sesuai dengan metode terbaik hasil penelitian terdahulu yaitu dengan membandingkan dua metode dalam memprediksi produksi beras, hasil dari penelitian terdahulu penulis mendapatkan metode terbaik dengan melihat nilai RMSE yang terkecil yaitu metode Weighted Moving Average dibandingkan dengan metode Simple Moving Average. Dalam membuat rancang bangun sistem informasi prediksi produksi beras pada penelitian ini penulis menggunakan framework streamlit dengan bahasa pemrograman python dan model waterfall dalam pengembangan perangkat lunak, dengan harapan dapat mempermudah dan mempercepat dalam proses perhitungan prediksi produksi beras untuk periode yang akan datang.
Rancang Bangun Sistem Manajemen Kendaraan Pengganti Menggunakan Metode Waterfall Pada PT. Pratama Mitra Sejati
Authors: Sudartono Jamal , Narti Narti
Published: June 2024

PT. Pratama Mitra Sejati Merupakan perusahaan yang bergerak dibidang penyewaan mobil dengan beragam armada mobil. Kegiatan pada pengelolaan kendaraan pengganti pada PT Pratama Mitra Sejati merupakan salah satu proses yang penting untuk kepuasan pelanggan. Kendaran pengganti digunakan sebagai pengganti sementara kendaraan sewa yang mengalami kerusakan berat. Ada beberapa permasalahan yang ditemukan pada PT tersebut, diantaranya dalam  pengelolaan kendaraan dinas pada PT Pratama Mitra Sejati masih menggunakan cara konvensional, serta pencatatannya masih secara manual sehingga hal tersebut  kurang efisien dalam proses pelacakan ketersediaan kendaraan pengganti dan butuh waktu yang lama dalam mendata kendaraan serta menyulitkan dalam pembuatan laporan. Maka untuk  mengatasi hal tersebut penulis membuatkan sistem informasi yang dapat mempermudah dalam  melakukan proses pengelolaan manajemen kendaraan pengganti. Sistem manajemen kendaraan pengganti dibuat menggunakan Framework PHP, Codeigniter dan  menggunakan database MySQL. Di dalam sistem  ini, output yang akan dihasilkan berupa surat jalan dan berita acara serah terima. Sistem  ini memudahkan pelacakan data kendaraan pengganti serta lebih cepat sebab data disimpan secara terstruktur serta permanen pada database. Kesulitan terkait pembuatan laporan dapat teratasi dengan lebih mudah serta cepat berkat adanya sistem komputer yang baik.Tujuan dari adanya penelitian ini adalah untuk membantu PT. Pratama Mitra Sejati dalam memecahkan masalahnya yaitu adanya keinginan perusahaan dalam membangun sistem informasi untuk pengelolaan kendaraan pengganti, kegiatan pada pengelolaan kendaraan pengganti pada PT Pratama Mitra Sejati merupakan salah satu proses yang penting untuk kepuasan pelanggan. PT. Pratama Mitra Sejati merupakan perusahaan yang bergerak dibidang penyewaan mobil dengan beragam armada mobil. Kendaran pengganti digunakan sebagai pengganti sementara kendaraan sewa yang mengalami kerusakan berat. Ada beberapa permasalahan yang ditemukan pada PT tersebut, diantaranya dalam pengelolaan kendaraan dinas pada PT Pratama Mitra Sejati masih menggunakan cara konvensional, serta pencatatannya masih secara manual sehingga hal tersebut kurang efisien dalam proses pelacakan ketersediaan kendaraan pengganti dan butuh waktu yang lama dalam mendata kendaraan serta menyulitkan dalam pembuatan laporan. Maka untuk mengatasi hal tersebut penulis membuatkan sistem informasi menggunakan sebuah metode pengembangan sistem yaitu metode waterfall yang dapat mempermudah dalam melakukan proses pengelolaan manajemen kendaraan pengganti. Sistem manajemen kendaraan pengganti dibuat menggunakan Framework PHP, Codeigniter dan menggunakan database MySQL. Hasil dari penelitian ini berupa sistem informasi manajemen kendaraan pengganti yang dimana hasil test performanya menggunakan Apdex menunjukan kualitas yang baik.
Penerapan Model Prototype Dalam Rancangan Sistem Informasi Pencatatan Meteran Air: Studi Kasus Tirta Galaherang Kabupaten Mempawah
Authors: Bayu pratama Eri , Rezki Muhammad , Abdi Saputra Derry
Published: June 2024

Perkembangan teknologi yang pesat, terutama di bidang elektronika, telah menjadikan sistem berbasis online sebagai kebutuhan utama dalam berbagai aspek kehidupan, termasuk dalam pengelolaan sumber daya air. Dalam konteks ini, Perusahaan Daerah Air Minum (PDAM) Tirta Garaheran di Kabupaten Mendaya membangun sistem informasi berbasis web untuk pencatatan meter air pelanggan. Tujuan utama dari pembuatan sistem ini adalah untuk meningkatkan efisiensi dan akurasi dalam proses pencatatan pembacaan meter air, sekaligus meningkatkan kualitas layanan kepada pelanggan. Sistem ini memanfaatkan web service yang terintegrasi dengan aplikasi pencatatan meter, memungkinkan operator lapangan untuk melakukan pencatatan secara lebih efisien dan mengurangi potensi kesalahan. Hasil penelitian menghasilkan sebuah alat perekam meter air berbasis web yang dirancang menggunakan Figma, yang tidak hanya memudahkan petugas dalam membaca meter air, tetapi juga mendukung transisi signifikan perusahaan dari operasi manual ke digital
Pemanfaatan API Midtrans Dan RajaOngkir Dalam Sistem Penjualan Online
Authors: Maulana Fachmi , Nainggolan Esron Rikardo , Rahmayu Mulia
Published: June 2024

Pandawa Musik is a shop that runs a business in the field of buying and selling musical instruments. The store has been around for a long time and has quite a number of regular customers. The sales system that runs on Pandawa Musik is still running manually so that there are often problems in data collection and stock checking. And the sales system is still placed in shop windows, distributing flyers or word of mouth. This allows for errors in data collection, the length of the service process and the lack of sales volume.
Based on the description above, the authors are interested in developing an information system that can help Pandawa Musik in making web-based E-Commerce, equipped with features that can make work easier and more systematic, especially in the field of data collection and transactions as well as postage throughout Indonesia. From this research, the authors raised the title "Online Sales Information System for Musical Instruments at the Web-Based Pandawa Musik Shop Using the MIDTRANS and RajaOngkir APIs".
Population variability of rosemary willow (Salix eleagnos Scop.) based on the leaf morphometry
Authors: Poljak Igor , Šatović Zlatko , Vidaković Antonio , Tumpa Katarina , Idžojtić Marilena
Published: June 2024

Phenotypic differentiation is often the result of the ecological diversity of a species with a wide natural range. It is favoured by natural selection, as well as factors such as gene flow, genetic drift, or founder events. This is especially true for species of the riparian habitats and for species with light seeds that are easily dispersed by both water and wind. One such species is rosemary willow (Salix eleagnos Scop.), which occurs in both humid riparian habitats and arid karstic sites in central and southern Europe. The species was used as a model species in this research to determine the potential morphotypes suitable for different habitat conditions. In addition, the extent of the influence of environmental conditions on leaf morphometrics was analysed and the structuring of populations was investigated. We analysed three populations of S. eleagnos from karstic habitats and five populations found in riparian habitats. Leaf samples were collected from ten individuals per population, and nine leaf traits were analysed. Leaf phenotypic traits showed a clear bimodal distribution across populations, with samples from dry karstic habitats having smaller leaves than those from riparian habitats. In addition, habitat conditions showed to have a strong influence on morphology, consistent with a pattern of isolation by environment (IBE). These results were also substantiated by the AMOVA analysis, with 34.53% of the overall variability assigned to the variability of individuals between the two habitats (karstic vs. riparian). Furthermore, karstic populations exhibited homogeneous and low multivariate diversity index (MDI) values, as well as lower variability between the populations when compared to the riparian populations, thus reflecting phenotypic adaptability to uniform environmental conditions. In contrast, riparian populations exhibited both high and low levels of diversity, as well as greater interpopulation variability than that of karstic populations, which may be attributed to different origins of the populations and different environmental conditions. Overall, our results suggest that plant-habitat interactions are a complex process and that these two clearly distinct groups of populations of rosemary willow may represent two ecotypes.
THE PROBLEM OF DATA PREPARATION FOR ECONOMETRIC ANALYSIS
Authors: Dmytriieva Viktoriia
Published: June 2024

Econometric analysis is based on the relevant data that should respond to the reality, representativeness and certain period or moment of time. Thus, such data must be first carefully revised by investigator with all meticulousness before the start of calculations and modelling. During the data base forming and filling the researcher should consider questions concerning to it completeness, time frame of analysis, scale of studied objects and processes, heterogeneity of the data set, different levels of aggregation of indicators and measurement scales, multicollinearity of factors and other problems. It is worth to begin research only after such a thorough study of the sources of information and elimination of these problems.
Such a priori data analysis is the first important stage in any research that claims to obtain substantiated results. An incorrectly formed database and the presence of the listed shortcomings in it provide obtaining models that may be ideal at first glance, but do not correspond to reality, which as a result lead to the false predictions and conclusions. Scientists pay a lot of attention to the methodology for overcoming of such peculiarities of the data base as deficit or redundancy of information, type or format, optimal size of sample, sizes of training and test data sets, number of features for analysis. Such issues are proposed to be considered with appropriate statistical methods. Researchers can use program languages to enhance data preprocessing. Methods of coding, imputation, extra- or interpolation, normalization are applied to fill blanks and transform attributive features or data measured in various ways into quantitative data in certain format or scale. The next step, after overcoming all the shortcomings is the stage of modeling using methods of mathematical analysis for the reconstruction of causal mechanisms and further forecasting. However, after building the model, investigator deals with another set of problems that need to be solved. For instance, it is necessary to check the accuracy of the results and how model helps to reconstruct reality.
The article highlights the problems are faced by the researcher when creating a database for representative analysis of processes in the economy. The main approaches to their solution are considered.
TECHNICAL AND TECHNOLOGICAL LEVEL OF PRODUCTION AS A JUSTIFICATION OF THE INNOVATIVE DEVELOPMENT DIRECTIONS OF THE ENTERPRISE
Authors: Karavan Nataliya , Aituganova Liudmyla
Published: June 2024

The results of the analysis and generalization of methodical approaches to determining the technical and technological level of the enterprise are presented. The factors of formation of the technical and technological level of the enterprise from the point of view of the choice of directions of its innovative development are substantiated. It is emphasized that the technical and technological level of the enterprise depends not only on the state and level of use of technical resources. Technology is considered as a method of combining all types of resources, and finished products as a material result of any technological transformations are ready with predetermined quantitative and qualitative characteristics, the implementation of which will allow the enterprise to make a profit. It is proposed to evaluate the technical and technological level of production according to the following groups of indicators: technical resources: technical condition of the equipment, level of use of the equipment; material resources: the level of use of raw materials and materials; labor resources: the level of mechanization and automation of production, the level of use of labor resources; technology: the level of progressiveness of technology, man-made load on the environment; product. It is emphasized that each of the selected indicators of the assessment of the technical and technological level of production has its own desired direction of change. In order to eliminate the possible opposite direction in the calculations, it is proposed to use inverse indicators. Each of the selected indicators is relative in nature. At the same time, both the planned level of the indicator and its desired level, taking into account changes in the innovative policy of the enterprise, can be used as a base in the calculations. Proposals for improving the integrated assessment of the technical and technological level of production have been developed. A method of integral assessment of the technical and technological level of production is proposed, the implementation of which is carried out in the following stages: assessment of the level of technical resources, assessment of the level of material resources, assessment of the level of labor resources, assessment of the level of technology, assessment of products, determination of the integral indicator of the technical and technological level of production.
Quantum Jump in Heat Treating
Authors: Paul Shobhan
Published: June 2024

This paper discusses a novel heat treatment method that utilizes differential thermocouple analysis to provide real-time feedback on phase transformations, enabling exceptional control over the heat treatment process. Real-world applications of this method are identified, demonstrating its seamless integration with differential heat treatment techniques. This approach allows for the creation of mechanical properties that are variable and tailored to specific end uses, such as achieving high strength in one area and high fatigue resistance in another. Additionally, this method can lead to a new form of thermo-mechanical heat treatment. In this process, differential heat treatment is first applied to create variable properties, followed by laser peening to generate dislocations that are subsequently trapped by further heat treatment. This results in extraordinary fatigue resistance in the core section while maintaining high strength on the outer surface. This technology introduces capabilities that are currently unavailable in industrial heat treating.
Aerodynamic Furnaces for Heat Treatment
Authors: Sverdlin Alexey , Panhans Mattew A. , Sokolov Yury , Ness Arnold
Published: June 2024

AHTF (Aerodynamic Heat Treating Furnaces) furnaces, in which air or gas is heated to 600-700°C without electrical or other special heaters, have been developed and placed in operation in a number of plants for heat treating aluminum, magnesium, and titanium alloys, and also steels. The AHTF chamber furnace is thermally insulated without the use of firebricks. It has a centrifugal fan with vanes having a special contour. The fan, operating in a closed system, converts, into heat, almost all the energy used to turn it; the heat is transferred to the parts by convection. In most machine-building plants aluminum alloys are heat treated in ERF furnaces (electric resistance furnaces with forced air circulation) or in salt baths. This research deals with an investigation of the heating conditions for various semi-finished products of aluminum alloys in the AHTF-3 in comparison with the ERF-2 (Electrical Recirculation Furnace) furnace and a potassium nitrate bath of approximately the same working volume.
Integral Preoxidation of Aerospace Gear Steel
Authors: Hennis Timothy De , Weires Dale , Pounds Tyler
Published: June 2024

A study of the use of integral preoxidation was conducted on aerospace gear steels. Some aerospace gear manufacturers make use of a preoxidation process that is separate from carburizing to produce parts with uniform case depths and surface hardness. The stand alone preoxidation process adds cost due to additional manufacturing steps, processing time, handling of parts, etc. Integral preoxidation may be a simpler surface activation method to facilitate uniform carburizing. Results and experimental data from the evaluation of X2M test coupons carburized with an integral preoxidation and carburization cycle are presented. The purpose of this document is to highlight pertinent information from the indepth literature review regarding preoxidation of specific aerospace gears steels. A study of the use of integral preoxidation and carburizing processing of X-2M (BMS 7- 223) Steel was conducted and the experimental data is documented and discussed herein.
Unique Computer Modeling Approaches for Simulation of Induction Heating and Heat Treating Processes
Authors: Rudnev Valery
Published: June 2024

In the last decade, when discussing subjects related to a computer modeling of induction heating, the word “usefulness” has been replaced by the word “necessity”. Modern computer simulation is capable of effectively simulating electromagnetic and thermal phenomena for many processes, including those that involve electromagnetic induction. Combination of a sophisticated engineering background with advanced process simulation software provides to induction heating professionals the unique ability to analyze, in few hours, complex technological processes. It offers the ability to predict how different, interrelated and non-linear factors may impact the transitional and final thermal conditions and what must be accomplished to improve process effectiveness, determine the most appropriate process recipes and serves as a comfort factor when designing new systems.
Data Acquisition for Numerical Modelling of Induction Surface Hardening – Process Specific Considerations
Authors: Schwenk Maximilian , Hoffmeister Jürgen , Schulze Volker
Published: June 2024

Induction surface hardening is a widely used manufacturing process in order to improve the mechanical properties of components. However, better process understanding as well as process development requires numerical modeling. The modeling itself depends on the input data regarding the process and the material behavior. Data acquisition is a rather difficult task due to very short process times, as seen in contour hardening of gears. The paper will give an overview over critical aspects regarding input data and their acquisitions as well as a comparison between experiments and simulation in order give a better understanding for improving the modeling.
Stress and Distortion Evolution during Induction Case Hardening of Tube
Authors: Nemkov Valentin , Goldstein Robert , Jackowski John , Ferguson Lynn , Li Zhichao
Published: June 2024

Simulation of stresses during heat treating relates usually to furnace heating. Induction heating provides very different evolution of temperature in the part and therefore different stresses. This may be positive for service properties or negative, reducing component strength or even causing cracks. A method of coupled simulation between electromagnetic, thermal, structural, stress and deformation phenomena during induction tube hardening is described. Commercial software package ELTA is used to calculate the power density distribution in the load resulting from the induction heating process. The program DANTE is used to predict temperature distribution, phase transformations, stress state and deformation during heating and quenching. Analysis of stress and deformation evolution was made on a simple case of induction hardening of external (1st case) and internal (2nd case) surfaces of a thick-walled tubular body.
Properties of Semi-Finished Products and Welded Joints of Aluminum Alloy V92Zr after Prolonged Low-Temperature Heating
Authors: Sverdlin Alexey , Panhans Matthew
Published: June 2024

The high-strength aluminum alloy V92Zr, part of the Al-Zn-Mg system, is a self-quenched alloy. Its primary alloying elements include 4.2 wt% Mg, 3.2 wt% Zn, 0.6 wt% Mn, and 0.15 wt% Zr. The most suitable filler wires for welding this alloy are V92W, AMg6, AMg4Zr, and No.11 (Al-Zn-Mg). This alloy is applicable in aircraft production. Prolonged heating at 50-70°C can lead to significant structural changes in the precipitation hardening of aluminum alloys due to the transition from zone aging to phase aging. Studies indicate that zone aging of Al-Zn-Mg alloys, particularly in weld seams, with repeated heating at 50-70°C, substantially increases strength while reducing elongation, cross-sectional area reduction, toughness, stress corrosion resistance, and increasing susceptibility to cracking. Research has shown that even heating at temperatures below the phase aging threshold can significantly alter the properties. This article examines the effects of prolonged low-temperature heating on the mechanical properties, crack sensitivity in impact bending, and corrosion resistance of semi-finished products and weldments of V92Zr aluminum alloys after solution treatment and aging at room and elevated temperatures.
Heat Treatment Development for Rapidly Solidified Heat Resistant Cast Al-Si Alloy
Authors: Kasprzak W. , Chen D.L. , Thibodeau E.
Published: June 2024

Current heat treatment standards do not adequately define tempers for thin-walled castings that solidify at high rates. Emerging casting processes, such as vacuum high-pressure die casting, benefit from rapid solidification rates, which result in fine microstructures and reduce the need for prolonged solution treatment times. Studies on rapidly solidified samples with secondary dendrite arm spacing between 35-10 μm were conducted, with solution times ranging from 30 minutes to 9 hours, and various aging parameters were evaluated. Metallurgical analysis revealed that increased microstructure refinement could reduce solution time by up to 50% without compromising the alloy’s mechanical properties. The highest strengths, with an ultimate tensile strength of 330 MPa (47.9 ksi) and a yield strength of 300 MPa (43.5 ksi), were achieved under T6 peak aging conditions. Additionally, thermal analysis and dilatometer results are presented to evaluate phase dissolution during solution treatment, aging kinetics, and dimensional stability.
Сборник тестовых заданий по курсу «Международные отношения»
Authors: Наумов А.О. , Белоусова М.В.
Published: June 2024

Во второе издание учебно-методического пособия «Сборник тестовых заданий по курсу «Международные отношения», преподаваемом на факультете государственного управления МГУ имени М.В. Ломоносова, вошли задания, посвященные различным аспектам трансформации глобального миропорядка, в частности, вопросам противостояния стран Запада с их основными конкурентами – Российской Федерацией и Китайской Народной Республикой, развитию международных организаций и объединений (ШОС, БРИКС, ЕАЭС и т. д.), усилению влияния исламского фактора на события в международном пространстве и проч. Помимо этого, был расширен блок, посвященный конфликтам и кризисам Холодной войны. Сборник включает в себя пять вариантов тестовых заданий, каждый из которых состоит из девяноста вопросов по различным разделам курса. Тесты рассчитаны на проверку знаний в области международных отношений после Второй мировой войны от становления Ялтинско- Потсдамского порядка до его заката, равно как относительно особенностей функционирования системы международных отношений на рубеже XX–XXI веков и проблем становления нового многополярного мира. Издание адресовано студентам, магистрантам, аспирантам, преподавателям гуманитарных факультетов высших учебных заведений.
Проблемы и перспективы воссоединения государств корейского полуострова в условиях глобализации
Authors: Усманов Р.Х. , Цой С.В.
Published: June 2024

Проблема современных политических процессов на Корейском полуострове обсуждается в различных научных и исследовательских источниках, а также на уровне международных отношений. Одной из главных проблем является дальнейшее развитие государств Республики Кореи и Корейской Народно-Демократической Республики в структуре современного глобального взаимодействия. В монографии авторы рассматривают современную научную литературу по данной тематике и анализуруют основные тенденции и проблемы воссоединения государств Корейского полуострова в условиях глобальной взаимозависимости. Особое внимание уделяется ядерному вопросу КНДР, что составляет сегодня определенные угрозы и риски межкорейского разрыва и международной безопасности. Монография может представлять интерес для специалистов, исследователей, и в первую очередь корееведов, также рассчитана для лекционных курсов студентам и аспирантам по направлениям «Политология», «Международные отношения», «Зарубежное регионоведение».
Analysis and Generalization of the Properties of Mountain Rock Formations of the Deposits of the Kamchatka Territory
Authors: VAVRENIUK S.V. , VAVRENIUK V.G. , FEDIUK R.S. , KIM A.A. , BOGOMAZOVA A.A.
Published: June 2024

Currently in Kamchatka there is an intensive development of the tourist and recreational cluster “Three Volcanoes”, engineering and social infrastructure, and in the conditions of active construction, there is a sharp demand for building materials, in particular for building stone and inert aggregates for concrete: crushed stone, sand, as well as sand and gravel mixtures. Developed reserves of common minerals, including hard rocks for the production of building stone and inert aggregates, do not fully satisfy the projected demand of the construction industry for the coming years. In this connection, large-scale studies are underway to study the bowels of Kamchatka, aimed at expanding the existing mineral resource base of the peninsula, as well as work to expand the license fund for the extraction of common minerals for construction purposes. The publication contains a brief analysis and generalization of the properties of igneous rocks (intrusive, effusive), currently being developed deposits of the Kamchatka Territory, and used to obtain inert aggregates, and also contains the main characteristics of the deposits of sand and gravel mixtures of the peninsula. The latest (2022–2023) results of studies of the properties of rocks of the Pionerskoye-4 deposit: tuffs, diorites, granodiorites, basalts, andesite-basalts, carried out as part of detailed exploration and clarification of the balance reserves of the deposit, as well as the results of studies of physical and mechanical characteristics of crushed stone of various fractions obtained from granodiorites and tuffs of this deposit are presented.
Fast Curing Fluoroanhydrite Composition for Layer-by-Layer Extrusion (3D printing)
Authors: BEKMANSUROV M.R. , YAKOVLEV G.I. , GORDINA A.F. , KUZMINA N.V. , SAIDOVA Z.S. , ALEXANDROV A.M. , ZHUKOV A.N.
Published: June 2024

The results of a study on the development of a fast-curing composition based on fluoroanhydrite for layer-by-layer extrusion (3D printing) are presented. In the process of composition development, the optimal content of the main components – fluoroanhydrite, Portland cement, dry powder of a soluble sodium glass, hardening retardant – sodium phosphate, as well as micro-reinforcing chrysotile-asbestos fiber was determined. The compressive strength of the specimens was measured to be 6.9 MPa in the dry state and 4.6 MPa in the wet state. Studies of the microstructure of the material showed that the composition of the matrix is dominated by crystalline hydration products covering the fibers of chrysotile asbestos, which are evenly distributed in the structure of the composition. IR spectral analysis and differential thermal analysis of the composition showed the formation of gypsum dihydrate in the structure of the composition in combination with calcium silicate hydrates, which provide the necessary water resistance of the composition.
The Importance of Changes in the Field of Socio-Economic Cooperation in Polish-American Relations in the Era of Donald Trump’s Presidency
Authors: Dąbek Rafał
Published: June 2024

What did Polish-American cooperation in the socio-economic area look like during Donald Trump’s presidency, and what was its significance? This article describes and analyzes the actions and decisions taken by a politician who favored the development and security of Poland and the Eastern European region, who, during his presidency in 2017–2021, concluded numerous agreements with Poland, deepened trade exchange, and abolished the visa requirement for Polish citizens, opening their country to a freer influx of Poles who have a definitely positive attitude towards the United States and its interests in the world. Based on the data from the XXI century regarding certain areas of trade between Poland and the United States, there was an increase in trade and the deepening of economic ties between both entities. The President of the United States responsible for these changes was Donald Trump. Comparing the decisions made by his office and the decisions of his predecessors, there can be seen intense activity to strengthen Polish-American relations and implement long-awaited visions of the past. Unfortunately for the then president, the abolishment of visas for Poles was not enough to sway the Polish diaspora in the United States to vote for Donald Trump and secure his victory in the 2020 elections.
Coloniality and Resistance: The Revolutionary Moment in Communication Study in the Anglophone Caribbean
Authors: Gordon-Bell Nova
Published: June 2024

This essay discusses the development of communication and media studies in the Anglophone Caribbean.  Despite the prolific work of Anglophone researchers and scholars and over half a century of institutional engagement in media and communication education and training, a body of knowledge identifiable as the English-speaking Caribbean’s contribution to media and communication study and theory remains unidentifiable. North American, British, and European paradigms and theories constitute the hegemon of Anglophone Caribbean scholarship in media and communication study. This is consistent with the ideological role of education in the historical context of a British colonial legacy, which valorizes knowledge transfer over indigenous knowledge generation and typically elides the mastery of the English language with communicative competence. In response to the demands of the local and regional media industry, training in practical skills for journalism and media production is consistently prioritized over theory and scholarship​ regarding human communication. The paper points to the rich contributions of individual scholars, researchers, and teachers, and the possibilities for a distinctive Caribbean contribution to the study of communication, which could inform production and training for industry and expand theoretical and analytical approaches to research and scholarship. | En este ensayo se rastrea el desarrollo de los estudios de comunicación y medios en el Caribe anglófono. Pese a la nutrida obra de investigadores y estudiosos anglófonos y al más de medio siglo de compromiso institucional con la formación y capacitación en comunicación y medios, no existe todavía un corpus de conocimiento identificable como la aportación del Caribe anglófono al estudio y teoría de comunicación y medios. Los paradigmas y teorías norteamericanos, británicos y europeos ejercen la hegemonía sobre la investigación de medios y comunicación en el Caribe anglófono. Esto no sorprende dado el papel ideológico de la educación en el contexto histórico de un legado colonial británico, que privilegia la transferencia de conocimientos por encima de la generación de conocimientos indígenas, y donde suele identificarse la competencia comunicativa con el dominio del idioma inglés. Ante las demandas de la industria mediática local y regional, se prioriza la capacitación en habilidades prácticas de periodismo y de producción mediática, dejando en un segundo plano la teoría e investigación de la comunicación humana. En este trabajo se señalan las ricas aportaciones de estudiosos, investigadores y maestros individuales, así como las posibilidades de una aportación caribeña propia al estudio de la comunicación, lo que podría incidir en la producción y la capacitación para la industria, y, en última instancia, ampliar los enfoques teóricos y analíticos del campo académico y la investigación.
Understanding ex-ante Disruptive Innovation in Platform-Mediated Networks
Authors: Santoso Adhi Setyo
Published: June 2024

_Peer-to-peer or multi-sided platform has created disruptions in various industries in the past few years. In this matter, the crowd within the platform has significant role to create disruption. However, there are limited studies in disruptive innovation theory that examines the ex-ante disruptive innovation in platform-mediated networks since it still conducts the perspective of linear product-market supply and demand. By using entrepreneurial opportunities (discovery vs creation) and dynamic capabilities (aggregating vs integrating) theory, this research proposal wants to examine the antecedents of disruptive innovation trajectory (low-end vs new-market) that contributes to new Internet venture growth. Hence, it can contribute to the prediction of disruptive innovation trajectory through entrepreneurial perspective in the platform-mediated networks firm context._

_Keywords: crowd resources, peer-to-peer platform, platform disruption, disruptive innovation, network effect, entrepreneurial opportunities, discovery, creation, dynamic capabilities, aggregation, integration  _
Monstrous Lessons
Authors: Baillie Nathan
Published: June 2024

On October 31, 1589, Peter Stumpp was executed as a sorcerer and werewolf. Short pamphlets and print artworks were distributed through-out Germany and into England following Stumpp’s execution making him one of the most infamous werewolves in history. Through discussion of contemporary world events, development in printing technology, and the necessity of public teaching tools, the reason for Stumpp’s infamy becomes clear.
Considerations on the Centrality of Speech between philological intuition and communication-theoretical integration.
Authors: Milutin Michael Nickl
Published: June 2024

Based on a critical positioning of German in a global, multilingual context, it is outlined why there is and can be no equality of opportunity in the multilingual world of human linguistic communication. Neither quantitatively global nor communicator-centered in terms of the individual subject, nor interpersonal, nor group-specific, nor within the framework of typical areas of media-specific linked public speechlanguage communication. The primary data of cognitive-communicative speech activity remains central to human communication. Both should not be demonized: neither digital aids and appliances of teaching mediation, nor AIsupported chat programs with translation functions and encyclopaedically networked archive and data access options. Usability and customizability (individualization) are significant. The balance between human scientific, phonetic and innovative components as well as between philological categorization and communication-theoretical integration is relevant. In addition, a reduction in the ideologization and sociologization of learning and teaching is advocated. Technological ‚adminicula‘ are good in terms of methodological pluralism. In view of technological progress stages, Homo loquens AI-modified could develop into Homo multarum linguarum peritus. With a real transformation option onto Homo digitalis atque sermocinalis.
Multilingualism in EU education policy using the example of German as a language of instruction in Austria
Authors: Vangi Michele
Published: June 2024

Europe is recognised and admired as a continent with enormous linguistic and cultural diversity. Since the 1950s, the political agenda of the European institutions has been focused on protecting and promoting the multilingualism of its citizens. Since the early years of the new century, however, the promotion of multilingualism has become a necessity. Migration flows to Europe have led to a paradigm shift in multilingualism policy: Proficiency in several languages has not only become useful to improve academic and professional mobility, but also necessary to ensure the integration of new European citizens. It has therefore become increasingly important to intervene in schools and universities to promote the multilingualism of learners, as it should be considered an asset and not an obstacle to integration. This paper looks at the tools that the European institutions provide to Member States and local institutions to implement an educational policy adapted to the multilingual reality of today's Europe.The contribution focuses in particular on the Learning Education Policy Profile, a mentoring and monitoring tool provided by the Council of Europe to member states and local institutions. The example of the LEPP Austria is briefly analysed, identifying potentials and critical points of the Austrian education system. Particular attention is paid to the didactics of German as a language of instruction in schools with a high proportion of learners with a migrant background. The key question of this study is: Are schools in Europe up to the paradigm shift of a multilingual society in which languages such as Ukrainian, Arabic and Turkish characterise the 'language habitat' of our classes?
Avaliação da Hipossalivação e Xerostomia em Pacientes Oncológicos em Tratamento Quimioterápico
Authors: Diniz Cassius Kleberson Simões , Oliveira Marcos Diego Lima , Viana Filho José Maria Chagas
Published: June 2024

Introdução: Pacientes oncológicos tratados com quimioterapia apresentam efeitos adversos. Na boca, a hipossalivação e a xerostomia são relatadas como achados frequentes oriundos desse tratamento. Objetivo: Investigar a ocorrência de xerostomia e hipossalivação em pacientes oncológicos em tratamento quimioterápico. Método: Estudo transversal quantitativo, com coleta de dados realizada no Hospital São Vicente de Paulo, em João Pessoa, Paraíba, no setor de oncologia, entre agosto de 2022 e março de 2023. Os pacientes foram submetidos a um exame clínico, seguido da análise do fluxo salivar não estimulado e do preenchimento do instrumento Inventário de Xerostomia. Os dados foram analisados por meio de estatística descritiva e inferencial com auxílio do software Jamovi (versão 1.8.4). Resultados: Participaram do estudo 78 indivíduos com média de idade de 53 anos (±12,5), predominantemente do sexo feminino (n=63; 80,8%) e com diagnóstico de tumores sólidos (n=70; 89,7%). A hipossalivação foi diagnosticada em 59% dos pacientes (n=46), enquanto a xerostomia foi relatada por todos os indivíduos (n=78; 100%), sendo categorizada como amena (n=13; 16,7%) ou moderada (n=65; 83,3%). Houve diferença entre o fluxo salivar de pacientes com tumores sólidos e hematológicos, sendo os indivíduos com tumores sólidos os que apresentaram menor fluxo salivar (p = 0,0027, teste U de Mann-Whitney). Além disso, pessoas com hipossalivação possuem um risco aumentado de desenvolver xerostomia moderada (RR = 0,349; IC = 0,127 – 0,955; p = 0,006, teste Exato de Fisher). Conclusão: Indivíduos diagnosticados com hipossalivação neste estudo possuem risco aumentado de relatar a presença da xerostomia em graus moderados durante o tratamento quimioterápico.
Research on graphic data formats for compact representation and comparison of images
Authors: Gertsiy Oleksandr
Published: June 2024

This article investigates common methods of lossy and lossless compression of graphic information. The advantages and disadvantages of compression methods are identified as a result of the research. A comparative analysis of the main capabilities of graphic information compression methods is conducted. The relevance lies in the efficient transmission, processing, and storage of graphic information, as large data volumes require increased network bandwidth and significant resources for data storage. The practical significance lies in solving the task of effectively reducing data sizes by applying well-known compression methods. Based on the study of graphic data formats, the development of algorithms for the computational scheme of "precise" processing of halftone images for pattern recognition is presented. Such a scheme rewrites a multigradient image into a three-level representation and implements a balancing procedure, which allows forming image features in a more compact form and computing the correlation function faster. The effectiveness of using developed methods of compact image representation with correlation comparison of balancing curves is demonstrated compared to traditional correlation comparison of images.
Development of the traction system structure of a shunting diesel locomotive with a hybrid power supply scheme
Authors: Kostenko Ihor , Nezlina Olena , Maliuk Sergey , Lysenko Yevhen , Popovich Dmytro
Published: June 2024

In this work, the structure of the traction system of a shunting diesel locomotive with hybrid power, which performs both shunting work at the station and hauling work, is proposed. In order to develop the structure of the traction system, which will work effectively in both modes of operation of the shunting diesel locomotive, an analysis of the structures of the traction systems of diesel locomotives with hybrid power, produced by the world's leading companies, is carried out. In order to choose the optimal type of storage device, an analysis of the advantages and disadvantages of supercapacitor batteries and lithium-ion batteries is carried out. On the basis of the analysis of the structures of traction systems of diesel locomotives with hybrid power of leading companies and the advantages and disadvantages of supercapacitor batteries and lithium-ion batteries, the structure of the traction system of a shunting diesel locomotive with hybrid power, which performs both shunting work at the station and hauling work, is developed. In the proposed traction system structure, each traction motor receives power from a separate traction converter. The power for powering the traction motors during shunting work is transmitted from supercapacitor batteries, when carrying out hauling work - from lithium-ion batteries. This study can be used in the design of the traction system of a new and in the modernization of an existing shunting diesel locomotive.