bluuebunny/crossref_metadata_2025 huggingface dataset:
Prevalence and determinants of acute respiratory infections among under-five children in a tertiary care center at Pokhara, Nepal
Authors: Poudel Pramila , Soti Harikala
Published: June 2024

Introduction: Acute respiratory infection (ARI) is a major determinant of morbidity and mortality among under-five children in developing countries. Despite decreasing trends in childhood morbidity and mortality, ARI remains a significant predictor of recurrent illness and hospitalization among under-five children in Nepal. This study was conducted to assess the prevalence and determinants of ARI among under-five children at a tertiary care center at Pokhara, Nepal.
Methods: An analytical cross-sectional study was conducted among 358 mother-child dyads who were recruited through a purposive sampling technique and data was collected through the computer-assisted personal interview (CAPI) technique. Descriptive and inferential statistics were used. The level of statistical significance was set at p<0.05.
Results: The prevalence of ARI among under-five was 39.38%. The age of the child (AOR=8.37, 95% CI:5.00–13.99), being male (AOR=3.13,95% CI: 2.00–4.86), mother’s education below secondary level (AOR=2.28, 95% CI:1.39–3.73), child with no EBF (AOR=1.86, 95% CI:1.21–2.86), stunted child (AOR=2.99, 95% CI: 1.93–4.64), wasted child (AOR=2.66, 95% CI:1.71–4.12), passive smoking by child (AOR=2.43, 95% CI: 1.49–3.97), having no separate kitchen (AOR=0.18, 95% CI: 0.11–0.29) were found to be significant determinants of ARI.
Conclusions: More than 1/3rd of the under-five children had ARI. Age and gender of the child, maternal education, breastfeeding and nutritional status of the child, passive smoking, not having a separate kitchen, and using wood as a cooling fuel were the determinants of ARI among under-five children. The occurrence can be minimized by improving households, the nutritional status of children, and by increasing awareness regarding its prevention and management.
Different occlusal schemes in eccentric mandibular positions
Authors: Manandhar Pratik , Tuladhar Sapna Laxmi , Thapa Neeta , Ranjit Rebicca
Published: June 2024

Introduction: The alignment of teeth and their occlusal relationship in the arch plays an important role in mandibular movements during static and dynamic positions. Harmonious and synchronized mandibular movements is important for the physiological occlusion during lateral excursions of the mandible. Hence, the present study was designed to determine the different occlusal schemes in eccentric mandibular positions and the frequency percentage of each occlusal pattern was determined.
Methods: This cross-sectional study was conducted among 64 undergraduate students of Gandaki Medical College aged from 18 to 30 years, where, a convenience sampling technique was used for data collection. The occlusal contacts were recorded in 1, 2, and 3 mm from the maximum intercuspal position on both the working and non-working sides. Working side occlusal contacts were determined for the total range of lateral positions and classified into: canine protection, group functions, or others (occlusal patterns other than those described).
Results: Most of the working side contact patterns were classified as group function (66.15%) followed by canine-guided occlusion (18.75%); while contact patterns other than canine protection and group function were found in 15.10% of the contact patterns on the right side. On the left side, group function was found in 62.50%, canine protection in 9.33% and others in 14.67% of the contact patterns.
Conclusions: On laterotrusion, most subjects had group function on the working side but canine protection was found to be rare.
Appropriation of Myth In Mahasweta Devi’s “Draupadi” and Nayan Raj Pandey’s Ular
Authors: Phuyal Komal Prasasd
Published: June 2024

Myths evolve and transform into new narratives in contemporary times through cultural appropriation as societies treat myths as vantage points to examine and interpret contemporary reality. Creative authors appropriate myths into emerging contexts to pass commentary on the prevailing reality, to derive meaning out of incoherent conditions of the time, and to make emergent situations more intelligible to the world. Popular Bengali writer, Mahasweta Devi (1926-2016) has employed Draupadi from the Mahabharata as the voice of the revolting Santhals from Bengal in the 1970s. Her short fiction “Draupadi” (1978) tells the story of a Naxalite insurgent, who sets out to participate in the armed conflict against the state in order to end economic exploitation and caste-based discrimination in her society. Similarly, Nepali novelist Nayan Raj Pandey (1966-) appropriates the myth of Draupadi by turning her into a Badi woman, sexually serving at the precinct of her society in Nepalgunj in his novella Ular [Imbalance] (1996). Devi recontextualizes the mythical Draupadi as an agent who chooses to transform the core of her society, while Pandey’s Draupadi dreams of settling in society as a family woman with her lover, Prem Lalwa. By analyzing two works of fiction, this paper explores the political goal of appropriation of certain myths in modern South Asian literature by contextually reading the text in order to explore the political goal of recontextualizing the classical narrative in the modern world. Devi's Draupadi stands at the crossroads of Bengal's socio-cultural transition in the 1970s. The author treats Draupadi as a window to look into her society and critically remark on its course of action at present. Similarly, Pandey shows the impact of the restoration of democracy in 1990 in Nepal. Draupadi loses her purity and agency in the 1990s in Nepal by letting herself be pushed to the further margins of her society.
Penerapan Smart Sensor Tegangan B25 Dan Sensor Arus Wcs1800 Pada Kursi Roda Cerdas
Authors: Desmira Desmira , Aziz Nur Mubarok Muhammad , Juniwan Juniwan
Published: June 2024

Pentingnya keselamatan dan efisiensi penggunaan energi yang stabil didalam menggunakan kursi roda untuk meningkatkan kelamatan pengguna dalam menggunakan kursi roda. Dengan penerapan sensor tegangan B25 dan sensor aeus Wcs1800 yang stabil maka output energi yang dikeluarkan akan stabil sehingga ketika digunakan kursi tersebut akan berfungsi sesuai dengan yang diharapkan. Penelitian bertujuan untuk memahami pola konsumsi daya kursi roda cerdas dan memberikan kontribusi pada pengembangan teknologi yang lebih efisien. Metode penelitian meliputi obsevasi,wawancara dan literatur perpustakaan dan beberapa jurnal yang dijadikan reverensi utama didalam penelitian dimana penelitian ini mencakup monitoring daya, pengujian data error persen, serta pengujian dengan beban dan tanpa beban. Hasil penelitian menunjukkan bahwa smart sensor tegangan dan arus dapat digunakan dengan efektif untuk memantau konsumsi daya. Analisis data error persen menunjukkan tingkat kesalahan yang rendah, mendukung kelayakan penggunaan kedua sensor. Pengujian dengan beban dan tanpa beban mengungkapkan perbedaan kecepatan kursi roda, sementara pengujian PWM menyoroti pengaruh daya pada putaran dan konsumsi baterai, kursi roda pintar telah banyak digunakan dibidang kursi roda dalam beberapa tahun terakhir. tujuan dari penelitian ini adalah untuk menganalisis pola konsumsi daya kursi roda pintar dan berkontribusi pada pengembangan teknologi yang lebih efisien. Penelitian ini menyajikan analisis penggunaan sensor tegangan dan arus dapat digunkan secara efektif untuk memantau konsumsi daya. data seberapa error atau kesalahan yang menunjukan tingkat kesalahan yang rendah, mendukung kelayakan penggunaan kedua sensor. hasil makalah ini memberikan wawasan berharga untuk desain, pengembangan, dan penggunaan teknologi yang lebih efektif . Kesimpulannya, hasil penelitian ini memberikan wawasan yang berharga untuk pengembangan kursi roda cerdas yang lebih efisien dan berkelanjutan.
Implementasi Load Balancing pada Web Server Berbasis Container dalam Cluster Kubernetes pada PT Mandiri Utama Finance
Authors: Sinaga Samson , Sobari Irwan Agus
Published: June 2024

PT Mandiri Utama Finance dalam operationalnya mengandalkan aplikasi berbasis web. Akan tetapi, masalah sering terjadi ketika diakses secara bersamaan dengan request yang besar terutama di akhir bulan sehingga kadang aplikasi menjadi lambat dan susah diakses bahkan bisa request timeout. Sedangkan sistem yang digunakan berbasis monolitik yang dimana aplikasi berada di dalam satu server ketika ada salah satu servis yang down aplikasi lain terdampak serta sumber daya yang dibutuhkan begitu besar. Dibutuhkan teknologi yang tepat untuk mewujudkan sistem web hosting yang high availability sehingga tidak mengganggu ketika diakses dan aplikasi berjalan dengan baik. Penggunaan web server berbasis container di dalam Kubernetes cluster merupakan arsitektur berbasis microservices. Teknologi ini relatif baru dan cepat perkembangannya. Ditambah dengan penggunaan load balancer external seperti HAProxy membuat sistem ini semakin reliable dalam pembagian request. Sistem container didalam cluster Kubernetes memiliki node masing-masing sehingga ketika ada service yang down aplikasi lain tidak terdampak dan pemanfaatan load balancer membuat pembagian request secara merata ke server web membuat aplikasi tetap stabil diakses ketika diakses secara Bersama -sama dengan request yang besar.
PERANCANGAN PERANGKAT LUNAK APLIKASI PENJUALAN BLOWER
Authors: Kananta Ajen Kananta , Putra Valentio Davinci , Alexander Edwin
Published: June 2024

Abstract - This research explores the design of a blower sales application using the Waterfall method. The aim is to create an application that meets functional and non-functional requirements through a structured software development approach. The Waterfall method was chosen to ensure a smooth development process from planning to implementation. The research results indicate that the produced application successfully meets the specified requirements, with well-documented development stages. Although the Waterfall method has limitations in flexibility to changes, the clarity and control it provides make it suitable for this project.
Implementasi Algoritma Dijkstra Untuk Menentukan Tempat Wisata dan Hotel Di Sukabumi Berbasis Android
Authors: Sudibyo Aji , Sastra Ricki , Musyaffa Numan
Published: June 2024

Kemajuan teknologi merupakan sesuatu yang tidak bisa dihindari dalam kehidupan ini, karena kemajuan teknologi akan berjalan sesuai dengan kemajuan ilmu pengetahuan, Sukabumi merupakan salah satu daerah di Jawa Barat dan menjadi salah satu kota tujuan utama pariwisata dan kuliner, karena itu informasi tentang Sukabumi sangat dibutuhkan untuk para wisatawan Modernisasi saat ini menjadikan teknologi sebagai bagian dari kehidupan dan sangat membantu dalam kegiatan sehingga sulit dipisahkan, salah satunya yaitu perkembangan perangkat mobile yang saat ini sudah semakin pintar sehingga sangat memudahkan dalam segi penggunaan Permasalahan yang sering terjadi adalah Banyak wisatawan yang masih bingung untuk menentukan objek wisata yang akan dikunjungi diantaranya penentuan lokasi, fasilitas, waktu, biaya, jarak. Algoritma Dijkstra, merupakan algoritma untuk menemukan jalur terpendek antara titik awal dan titik akhir. Sehingga dirancang sebuah purwarupa aplikasi berbasis android untuk memudahkan para pengguna khususnya wisatawan di sukabumi dalam memperoleh informasi seputar tempat wisata dan hotel di wilayah sukabumi.
Utjecaj matičnog supstrata na značajke kalkokambisola na području NP Plitvička jezera
Authors: Perković Ivan , Počekal David , Roje Vibor , Bakšić Darko , Pernar Nikola
Published: June 2024

Kalkokambisol (smeđe tlo na vapnencima i dolomitima) jedno je od najzastupljenijih tipova tala u Hrvatskoj. Kako i sam naziv sugerira razvijeno je na vapnencima i dolomitima, koji uključuju niz prijelaznih formi stijena u pogledu načina i intenziteta fizičkog i kemijskog trošenja. Na području Nacionalnog parka Plitvička jezera otvoreno je 30 pedoloških profila od kojih je 18 na vapnencima i 12 na dolomitima. Na terenu su bili određeni ektomorfološka i endomorfološka svojstva tla. Na prikupljenim uzorcima tla iz humusno-akumulativnog (A) i kambičnog (B) horizonta određeni su sljedeći parametri: granulometrijski sastav tla, reakcija tla odnosno pH-vrijednost u vodi i vodenoj otopini CaCl2, udjel karbonata te udjel organskog i ukupnog dušika. Najveće razlike u ektomorfološkim parametrima između tala povrh vapnenaca i dolomita utvrđene su u stjenovitosti i kamenitosti – na vapnencima se ona kreće u rasponu od vrlo niske do vrlo visoke, dok je na dolomitima nema. Na profilima kalkokambisola povrh dolomita utvrđen je veći udjel frakcija pijeska i manji udjel gline od kalkokambisola povrh vapnenaca. Dominantna teksturna oznaka u B-horizontu koji je ujedno i dijagnostički horizont kalkokambisola povrh vapnenaca je praškasta glina dok je kod kalkokambisola povrh dolomita praškasto glinasta ilovača. Prosječne pH-vrijednosti i udjeli CaCO3 u kalkokambisolima povrh vapnenaca bili su statistički značajno niže od kalkokambisola povrh dolomita duž cijelog profila. Nije utvrđena značajna razlika u udjelima Corg i Ntot između kalkokambisola povrh vapnenaca i dolomita pa tako nema ni velike razlike u omjeru C/N. Prosječni odnos C/N duž cijelog profila kalkokambisola povrh vapnenaca i dolomita iznosi 14, odnosno dekompozicija traje neometano. Ovim istraživanjem je utvrđeno da postoje značajne razlike u ektomorfološkim (stjenovitost i kamenitost) i endomorfološkim (granulometrijski sastav tla, pH-vrijednost tla i udjel CaCO3) svojstvima kalkokambisola na različitim matičnim supstratima.
Brown bear (Ursus arctos L.) distribution model in Europe
Authors: Acarer Ahmet
Published: June 2024

Brown bear, described as the largest carnivore in Europe, has a large body. While the brown bear can move safely and comfortably in its own habitat thanks to its large size, it is challenging for them to travel to different habitats over long distances. Therefore, negative changes that may occur with global warming may cause the existing brown bear populations and their habitats to be restricted, reduced, or destroyed. In this study, it was aimed to reveal the effect of Chelsa climate envelope models for current and future years on brown bear habitats in Europe. For this purpose, it was used the MaxEnt method, frequently used in wildlife species distribution modelling. The current habitat suitability model of the brown bear was in the “good model” category with the training data set ROC value of 0.834 and the test data set ROC value of 0.828. The variables contributing to the current model are annual range of temperature (48.2%), mean monthly precipitation amount of the warmest quarter (22.1%), temperature seasonality (18.2%) and annual precipitation amount (11.5%), respectively. When the mapping results used the variables contributed to the brown bear current habitat suitability model are compared with the IUCN inventory results, the current brown bear habitats in Europe will change regionally. However, it has been determined that brown bear habitats will shrink according to the SSP126 Chelsa climate scenario of the year 2100, and these habitats will fragment according to the SSP370 scenario, and that brown bear habitats disappear in some regions in the SSP585 scenario.
THE STATE OF HOUSING AND COMMUNAL SERVICES IN UKRAINE AND THE ASSOCIATION OF CO-OWNERS OF AN APARTMENT BUILDING ARE NECESSARY CONDITIONS FOR ITS STABLE FUNCTIONING
Authors: Levchuk Kateryna , Panteieva Vita
Published: June 2024

This article examines the state of the housing and communal sector during the military conflict between Ukraine and Russia. It is noted that military actions have led to the destruction of buildings and engineering communications, which has complicated the normal functioning of the housing and communal infrastructure. The article thoroughly investigates the direct and indirect losses inflicted on this sector, including the cost of destroyed objects and expenses for restoration. The text outlines the problems in the housing and communal sector, including outdated equipment, inefficient management, and lack of market competition. It suggests that creating associations of co-owners of multi-apartment buildings (HOAs) may be the most effective solution. HOAs can improve management, reduce maintenance costs, and enhance the quality of communal services. HOAs are argued to play a crucial role in maintaining the stability of the housing and communal sector, promoting regional economic development, and enhancing living conditions for residents.
STUDY OF THE INDICATORS OF THE ADMISSION COMPANY TO THE DNIPROVSKY STATE TECHNICAL UNIVERSITY IN 2023
Authors: Romaniuk Roman
Published: June 2024

The entry campaign in 2023, as in the previous one, took place in difficult conditions of martial law, that is, uncertainty, tension in society, constant risks of danger, the announcement of air warning signals, possible shelling and destruction, the presence of entrants from temporarily occupied territories. All this requires maximum avoidance of crowding and digitization. In addition, one should not forget about ensuring the quality of higher education. Therefore, the rules of admission to institutions of higher education have undergone certain changes. Among the main ones, it should be noted the use of the results of the evaluation of motivation letters for admission to the contract form of study in certain specialties, conducting face-to-face and/or remote interviews, which is very important for entrants from the temporarily occupied territories, as well as the need to pass a national multi-subject test, a single entrance exam and a single professional entrance test depending on the level of higher education and specialty.
The results of the 2023 admission campaign to the Dniprovsky State Technical University were analyzed and measures were proposed to improve the work of the university in order to increase the number of applicants in the following years. As the results of the study show, more attention should be paid to the specialties of the faculties of economics and social communications and metallurgy from the point of view of encouraging the admission of education seekers. This especially applies to specialties 071 Accounting and taxation, 101 Ecology, 104 Physics and astronomy, 161 Chemical technologies and engineering, 162 Biotechnology and bioengineering. Also, admission to specialty 113 Applied Mathematics is very low. Comparing the general indicators of admission at the bachelor's and master's levels, it is also possible to conclude about the need to develop measures to encourage entrants to study at the Dniprovsky State Technical University master's program.
Among the main measures to increase the number of entrants to the university in the coming years, the following can be noted: establishment of a lower tuition fee compared to other institutions of higher education in the region and region, especially for specialties with low demand among entrants, conducting career guidance work and advertising activities, including Open Door Days, support for entrants and students of education, for example, organization of preparatory courses on a national multi-subject test subjects, in-depth study of a foreign language.
THEORETICAL AND METHODICAL ASPECTS OF THE FORMATION AND FUNCTIONING OF THE INNOVATION MANAGEMENT SYSTEM IN LOGISTICS
Authors: Tarasenko Svitlana
Published: June 2024

The article describes the role and content of innovation management in the logistics sector. The place of logistics innovations in ensuring the competitive advantages of the enterprise is considered. The dynamics and components of the logistics index, which assesses the status of logistics development in the country, are analyzed. It is noted that the logistics efficiency indicator is a component of the global innovation index, determines the role of logistics development in the country's innovative development and in recent years has significantly deteriorated for Ukraine. The author points out the peculiarities of the logistics sphere, which consist in different levels of priority of logistics processes for enterprises of different industries and are manifested in the organization of the innovation management system. Logistics has a dualistic character and can be considered as an approach to management and as an object of control in the management system. It is noted that the introduction of modern innovative solutions in the logistics sphere of enterprises is a condition for their effective functioning both in the field of logistics and in other industries. The peculiarity of the logistics sphere of a production enterprise is the correspondence of its level of innovation to the level of innovation of the main technologies. The most important principles in the system of innovation management in logistics (systematic approach, integrity and flexibility) are substantiated. The author's vision of the theoretical foundations of the concept of innovation management in logistics, based on a combination of economic theory, logistics theory and logistics concepts, theories of innovation management, is presented. The content of the innovative paradigm of logistics is considered. The range of methods, tools and technologies for innovation management in logistics implementation is defined, which allow solving both logistics tasks and tasks of development, support, evaluation and implementation of innovations. It is emphasized that the main functional aspects of the innovation management system in logistics are strategic planning for innovation, organizational changes and technological solutions aimed at introducing the latest information systems, automation and robotization of logistics processes. The social and environmental aspects of innovation management in logistics, the place of professional development of specialists involved in logistics, and knowledge management systems are also emphasized.
Transient Liquid Phase Diffusion Bonding of Stainless Steel 304 Using Copper and Aluminum Filler Interlayers
Authors: Atabaki M. Mazar , Wati J. Noor , Idris J. Bte
Published: June 2024

Transient liquid phase diffusion bonding was used to join stainless steel 304 with pure copper and aluminum foils as interlayers. The bonding process was conducted in a vacuum furnace at various temperatures and diffusion times. The joints were analyzed using optical and scanning electron microscopy, energy dispersive spectrometry, and microhardness measurements. Results indicated that the hardness of the bonds formed with the copper interlayer in a vacuum was higher than those formed with the aluminum interlayer. The poor mechanical properties of the bonds were attributed to the formation of intermetallic compounds within the bond region. Prolonged holding of the parent alloy at the bonding temperature likely led to complete isothermal solidification. The diffusion of the main elements from the interlayers into the base metal at bonding temperatures was the primary factor influencing the microstructural evolution of the joint interface. Selecting an appropriate bonding temperature to achieve the maximum concentration of melting point depressants depended on the duration of isothermal solidification. To assess the corrosion resistance of the joints, Tafel tests were conducted in a 3.5% NaCl solution. The presence of eutectoid γFe + eutectic Cu + Cr and Fe-Al intermetallics was detected at the interface of the joints bonded with copper and aluminum interlayers, respectively. The highest microhardness was observed in the diffusion zone, with hardness values gradually decreasing as the distance from the joint increased. The joints involving stainless steel and copper exhibited crevice corrosion due to the galvanic couple between the stainless steel and copper. Additionally, pitting occurred due to intergranular stress corrosion cracking on the copper surface.
The Effect of Cryogenic Processing on the Mechanical Properties of Austempered Ductile Cast Iron (ADI)
Authors: Putatunda Susil K. , Martis Codrick , Diekman Frederick , Papp Rozalia
Published: June 2024

An investigation was carried out to examine the influence of cryogenic processing on the microstructure and mechanical properties of Austempered Ductile Cast Iron (ADI). ADI has emerged as a major engineering material in recent years because of its many attractive properties. These include high yield strength with good ductility, good fatigue strength, fracture toughness and wear resistance. In this investigation, compact tension and cylindrical tensile specimens were prepared from ductile cast iron as per ASTM standards and were austempered at a lower bainitic temperature of 288°C (550°F). These specimens were then cryogenically processed. The mechanical properties and fracture toughness of these samples were evaluated and compared with the noncryogenically treated samples. The influence of cryogenic heat treatment on the microstructure of these samples was also examined. Test results show that the cryogenic processing can improve the mechanical properties without compromising the fracture resistance of the material.
New Carbonitriding Processes
Authors: Hoffmann Franz T. , Steinbacher Matthias , Clausen P.D. Brigitte , Bischoff Sebastian , Klümper-Westkamp Heinrich , Zoch Hans-Werner
Published: June 2024

In the last centuries carbonitriding was mainly used to enhance the hardenability of unalloyed steels. IWT developed gas-carbonitriding and low-pressure-carbonitriding processes to increase fatigue behavior and quality compared to case hardening. For example, modern gas-carbonitriding processes make it possible to extend materials ́ strength, so that the limit of use of a given alloy can be expanded. The paper shows examples for the treatment of ball bearing and case hardening steels. The treatment results in microstructures, which are unusual, compared with conventional heat treated parts. They are characterized by high amounts of retained austenite and carbonitride precipitations. By a controlled process, which has been developed in cooperation with PROCESS-ELECTRONIC, it is possible to adjust surface carbon- and nitrogen content independently. Low pressure carburized parts have the advantage that no internal oxidation occurs. So they have the potential of leading to a higher strength. Nowadays LP-carburizing is used in a wide range, whereas LP-carbonitriding processes are at a starting point. In this paper possibilities and limitations of this process are shown. So, inline controlling of LP-processes in a classical way is not possible, but simulation guided process control. The paper will give examples for LP-carbonitriding processes and the resulting microstructure.
Effect of Heat Treatment on Fracture Toughness of Micro-Alloyed Steel
Authors: Chaudhury Joydeb Nag , Prasad R.C.
Published: June 2024

Due to their diverse microstructures, micro-alloyed steels are increasingly being adopted across various industries. While extensive literature exists on the processing routes of these steels, experimental data on their suitability for fracture mechanics-based design and manufacturing approaches is relatively scarce, particularly in two areas: (1) the alteration of fundamental fracture mechanics properties of micro-alloyed steels in the presence of structural restraints such as pre-stress and pre-strain, and (2) a comparative study of the effect of heat treatment practices on the fracture mechanics properties of micro-alloyed steels relative to their as-rolled conditions. This study addresses these gaps by experimentally determining the quasi-static initiation fracture toughness (J1c) of low carbon (0.19%) micro-alloyed steel in its as-rolled condition, following ASTM E-1820 standards, without any heat treatment. Additionally, the study examines the effects of normalizing, shot-peening, and cyaniding followed by shot-peening on the fracture toughness parameter. The results indicate that normalizing, shot-peening, and cyaniding, followed by shot-peening, positively influence the initiation fracture toughness of this micro-alloyed steel.
Simulation of Stress and Strain for Induction Hardening Applications
Authors: Ivanov Dmitry , Markegård Leif , Asperheim John Inge
Published: June 2024

The possibility to manage stress and strain in hardened parts might be beneficial for a number of induction hardening applications. The most important of these benefits is the improvement of fatigue strength, avoidance of cracks and minimization of distortion. An appropriate and powerful way to take the stress and strain into account during the development of a process is to make use of computer simulations. Own developed and commercial software packages have been coupled to incorporate the electromagnetic task into the calculations. The simulations have been performed with a following analysis of the results. The influences of two different values of quenching intensity, strength of initial material structure, strength of austenite, surface power density-frequency-time-combination, and work piece diameter on the residual stress are studied.
Effect of the Oxidation Stability of Soybean Oil and Palm Oil on Steel Quenching Performance
Authors: Said Diego , Belinato Gabriela , Otero Rosa L. Simencio , Canale Lauralice C.F. , Sarmiento Gustavo S. , Gastón Analía , Totten George E.
Published: June 2024

The potential use of vegetable oil derived industrial oils continues to be of great interest because vegetable oils are: relatively non-toxic, biodegradable and they are a renewable basestock alternative to petroleum oil. However, the fatty ester components containing conjugated double bonds of the triglyceride structure of vegetable oils typically produces considerably poorer thermal oxidative stability than that achievable with petroleum basestocks under typical use conditions where furnace loads of hot steel (850 °C) are typically rapidly immersed and cooled to approximately 50-60 °C bath temperatures. This is especially true when a vegetable oil is held in an open tank with agitation and exposure to air at elevated temperatures for extended periods of time (months or years). Unfortunately, as vegetable oils degrade, their fluid viscosity is expected to increase resulting in decreased quench severity. Clearly, thermal-oxidative stability is essential. This paper will review thermal-oxidative stability and quenching performance of soybean oil and palm oil and the resulting impact on the heat transfer coefficient.
Epoxidized Soybean Oil: Evaluation of Oxidative Stabilization and Metal Quenching/Heat Transfer Performance
Authors: Otero Rosa L. Simencio , Canale Lauralice C.F. , Schicchi Diego Said , Agaliotis Eliana , Totten George E. , Sarmiento Gustavo Sánchez
Published: June 2024

Vegetable and animal oils as a class of fluids have been used for hundreds of years, if not longer, as quenchants for hardening steel. However, when petroleum oils became available in the late 1800s and early 1900s, the use of these fluids as quenchants, in addition to their use in other industrial oil applications quickly diminished. This was primarily, but not exclusively, due to their generally very poor thermal-oxidative instability and the difficulty for formulating fluid analogs with varying viscosity properties. Interest in the use of renewable fluids, such as vegetable oils, has increased dramatically in recent years as alternatives to the use of relatively nonbiodegradable and toxic petroleum oils. However, the relatively poor thermal-oxidative stability has continued to be a significant reason for their general non-acceptance in the marketplace. Soybean oil is one of the most highly produced vegetable oils in Brazil. Currently, there are commercially produced epoxidized versions of soybean oil which are available. The objective of this paper is to discuss recently obtained results showing the dramatic improvement in thermal-oxidative stability of epoxidized soybean oils and to discuss their potential use and heat transfer properties as viable alternatives to petroleum oils for hardening steel.
Development of Low-Cost, Rapid Case Hardening Treatments for Austenitic Stainless Steels
Authors: Wang Xiaolan , Zurecki Zbigniew , Sisson Richard D.
Published: June 2024

Austenitic stainless steels are critical in the modern economies with applications ranging from food processing and cryogenic machinery to medical implants and aerospace instrumentation. Tough, resistant to low-temperature embrittlement and many forms of corrosion, these steels are, nevertheless, prone to scratching and galling in service. Case hardening was found to be effective when combined with corrosive surface treatments or in low-pressure, direct plasma-ion discharges, but inhibited in simple atmospheric-pressure furnaces. This paper presents preliminary evaluation of new, rapid (3-4 hrs) nitriding and carbonitriding treatments at low- (500-565°C) and high- (1100°C) temperature ranges involving injection of high-voltage, electric arc-activated, N2-based, NH3 and hydrocarbon gas mixes to the conventional box furnace. Reported data includes characterization of stainless steel product layers using SEM-EDS, XRD, OM, Leco elemental analysis, and microhardness profiling, as well as laser gas analysis of the residual furnace atmosphere.
Современные механизмы формирования государственной политики
Authors: Вилисов М.В. , Григорьева Н.С. , Донцов С.П. , Камалова М.И. , Коньков А.Е. , Косоруков А.А. , Купряшин Г.Л. , Малышева Н.С. , Михайлова О.В. , Пушкарева Г.В. , Соловьев А.И. , Телин К.О. , Туронок С.Г.
Published: June 2024

В книге раскрываются актуальные механизмы и технологии формирования государственной политики, отвечающей на вызовы, встающие перед современным российским обществом. В этой связи освещаются базовые вопросы, решаемые государством в социальной сфере, в области государственного управления, обеспечения информационной безопасности, молодежной политики, международных отношений, а также проблемы, возникающие в других сферах общественной жизни. В этой связи подчеркивается роль гражданских и экспертных структур, участвующих в разработке и осуществлении правительственных проектов, обращается внимание на возникновение возможных рисков, обозначаются перспективы урегулирования возникающих противоречий в кратко срочном и среднесрочном горизонтах. Книга рассчитана на студентов бакалавриата и магистратуры, специализирующихся в области государственного и корпоративного управления, публичной политики, а также на всех тех, кто интересуется данной проблематикой.
Global food security crisis
Authors:   Belotserk National Agrarian University, PANASIUK V. , ILINA A.
Published: June 2024

Food security is an acute problem of today�s world, though its essence and structure differ drastically for the richest and the poorest countries of the world. But regardless of development level every country is striving to guarantee sufficient rational level of food provision for all social strata of society.
Compliance with the principle of environmental safety in the production of agricultural products
Authors:   Vinnytsia Educational and Scientific Institute of Economics Western Ukrainian National University, Pohrishchuk Borys , MAZUR V. ,   Western Ukrainian National University, PROTS �.
Published: June 2024

The work focuses on the issue of compliance with the principle of ecological safety in the production of agricultural products. Attention is focused on the need to implement measures to ensure environmental safety in the production process, which include: implementation of ecological production methods; efficient use of water and air resources; soil conservation; minimization of waste and emissions into the natural environment; increasing the share of organic production and others.
Food security of Ukraine under martial law
Authors:   Mykolayiv National Agrarian University, Statsenko V. , Kushniruk V.
Published: June 2024

Today, food security is an acute issue for our country due to the military operations that are taking place on its territory. The national security of a country is directly related to the level of its food security, which is why this paper describes the problems that have arisen in Ukraine and suggests ways to solve them.
Chatbot as an object of accounting and taxation
Authors:   Mykolayiv National Agrarian University, Luhova O.
Published: June 2024

The concept of �chat-bot�, features of recognition, formation of initial value and reflection in accounting in accordance with national legislation are disclosed
Outsourcing of accounting services at the level of territorial communities: trends and prospects
Authors:   Mykolayiv National Agrarian University, Potryvaieva N. , Palieiev A. , Moskal I.
Published: June 2024

The possibilities of using outsourcing for accounting in local communities have been revealed. The key factors affecting the successful implementation of outsourcing in the context of providing accounting services to territorial communities are highlighted. Current trends and prospects of outsourcing of accounting services to territorial communities are determined.
Peculiarities of accounting for humanitarian aid during martial law
Authors:   Mykolayiv National Agrarian University, Syrtseva S.
Published: June 2024

The work examines the specifics of legislative and regulatory support for humanitarian aid and its accounting during the period of martial law. The procedure for recognition of humanitarian aid has been established. Options for displaying receipts and transferring them to the final recipient on accounting accounts have been considered.
A systematic approach to food safety in accordance with the BRC GLOBAL STANDARD FOR FOOD SAFETY
Authors:   Mykolayiv National Agrarian University, Honcharenko I.
Published: June 2024

The increasing demands for food safety continually drive enterprises to seek solutions that guarantee expanded risk management capabilities, facilitate entry into new markets, notably accessing major trading networks, ensure more efficient operational activities (through cost reduction and productivity growth), and enhance reputation. Therefore, the implementation of a systematic approach to food product safety through the adoption of the BRC Global Standard for Food Safety is proposed. This standard encompasses assured control over product safety, fosters consumer and partner trust, improves company image, and enables effective supply chain management
Study of the Mechanical Characteristics of Vibration-Damping Materials of the Sylomer and Gener Brands
Authors: БОГОМОЛОВА Л.К. , СМОЛЯКОВ М.Ю. , СМИРНОВ В.А.
Published: June 2024

The behavior of vibration damping materials used to reduce vibration in structures by absorbing vibration energy (damping) is considered. A comparison was made of the properties of two materials with a cellular structure: Sylomer SR 110 (Austria) and similar, according to the manufacturer, according to the characteristics of Gener VX 110 (Russia). As part of the study, a set of tests was performed to determine the mechanical properties of these materials, as well as their change during aging. It was found that the material Gener VX 110 has a higher creep than Sylomer SR 110, as well as lower aging resistance, which leads to a significant increase in rigidity and a decrease in the effectiveness of vibration isolation. The spread of measured characteristics for Gener VX 110 is higher than for Sylomer SR 110, which requires the introduction of additional safety factors.
Vertical distribution of annual water temperature maxima in the southern coastal zone of Lake Baikal
Authors: Naumenko M.A. M.A. ,   Institute of Limnology of the Russian Academy of Sciences – St. Petersburg Federal Research Center, Russian Academy of Sciences, Sevastyanova Str., 9, St. Petersburg, 196105, Russia, Guzivaty V.V. V.V. ,   Institute of Limnology of the Russian Academy of Sciences – St. Petersburg Federal Research Center, Russian Academy of Sciences, Sevastyanova Str., 9, St. Petersburg, 196105, Russia, Lovtsov S.V. S.V. ,   Research Institute of Applied Physics of Irkutsk State University, Gagarin Blvd, 20, Irkutsk, 664033, Russia, Troitskaya E.S. E.S. ,   Limnological Institute Siberian Branch of the Russian Academy of Sciences, Ulan-Batorskaya Str., 3, Irkutsk, 664033, Russia, Budnev N.M. N.M. ,   Research Institute of Applied Physics of Irkutsk State University, Gagarin Blvd, 20, Irkutsk, 664033, Russia
Published: June 2024

It is frequently observed that an extreme event, such as a temperature maximum, has a greater impact on a lake ecosystem than changes in average conditions. For the first time, we examine the vertical variability of annual water temperature maxima (AWTM) and dates of their occurrence based on in-situ measurements of water temperature with discreteness of 15 minutes for a stable stratification period over eleven years (since 2005 to 2016 except 2009) in the southern coastal zone of Lake Baikal with a bottom depth of 545 m. The estimated statistical characteristics clearly distinguish various features of the vertical distribution of AWTM. There are significant time shifts (about 86 days) between the uppermost horizon (about 15 m) and the lowest 300 m horizon. The average maximum annual temperatures (15 °C) decrease from the upper horizon to a temperature of 4 °C at 300 m depth. To quantify changes in the annual maximum water temperature, the empirical functions were constructed to estimate relationships between AWTM, dates of their occurrence and depth. These dependencies are not linear and verified by independent data. They have fairly high coefficients of determination.
Intersections of Statistical Significance and Substantive Significance: Pearson’s Correlation Coefficients Under a Known True Null Hypothesis
Authors: Komaroff Eugene
Published: June 2024

The editors of a special issue of The American Statistician stated: “Regardless of whether it was ever useful, a declaration of “statistical significance” has today become meaningless.” This echoes the author's view, as “statistical significance” has been conflated with substantive significance. However, the author respectfully disagrees with the editors' call for “don’t use it.” With the help of relatively simple graphs and tables, this author demonstrates that small sample sizes (n < 1000) require Pearson’s correlation coefficients to be screened for statistical significance (p <.05) to reduce the number of effect size errors that would otherwise be considered substantively significant under a true null hypothesis. It's crucial to note here that the null hypothesis is not merely assumed true but is indeed known to be true.
EFFECT OF APPLYING MIXED ORGANOMINERAL FERTILIZER AS A BIOSTIMULANT ON SOYBEAN YIELD
Authors: Olivieira Pedro Luid de Sousa , Bezerra Aracy Camilla Tardin Pinheiro , Borges Cássio do Prado , Mattos Carlos Gabriel Oliveira , Ferreira Deise Kelle Barbosa , Costa Netto Antônio Paulino da
Published: June 2024

Although soybean is economically one of the main agricultural products in the national and world scenario, it is still needed to increase its grain yield. Therefore, this study aimed to evaluate the effect of applying mixed organomineral fertilizer (OMF) at different doses and at two phenological stages on soybean yield. The experiment was conducted in the experimental area of the Federal University of Jataí, in the state of Goiás, and was installed under a no-till system (NTS). The experimental design used was randomized blocks arranged in a 4 x 2 + 1 factorial scheme, consisting of four doses of OMF, applied at two phenological stages and one additional control. The following OMF doses were evaluated: 0.5 kg ha-1, 1 kg ha-1, 1.5 kg ha-1, and 2 kg ha-1, at two reproductive stages: R3 and R5, and the additional control. The experiment consisted of three blocks. Each plot had a useful area of 16.2 m². The agronomic parameters assessed were plant height (m), first pod insertion height (m), number of pods per plant, number of grains per pod, 1000-grain mass (g), and grain yield (kg ha-1). The application of OMF as a biostimulant to soybean crops led to an increase in the first pod insertion height and the number of pods per plant; it did not lead to higher yields; however, when applied at phenological stage R5, higher yields were observed compared to application at R3.
Advanced training course on the use of Chat GPT – presentation of the teaching concept and cross-sectional study conducted in Kyrgyzstan
Authors: Lange Anja , Wolf Dagny
Published: June 2024

The article is about Chat GPT and other modern artificial intelligence tools. First, a study is presented that was carried out in Central Asia with students and teachers. In this study, students and teachers were surveyed about their use of Chat GPT.
The students are very good at using Chat GPT and also use the tool to learn languages in their free time. The teachers are less good at it. Teachers have less interest in Chat GPT and also less knowledge about the tool. Many wrote that they would like to know how to use this tool, but don't know how.In addition, exercises that can be done with Chat GPT in language lessons will be presented. These exercises are presented in this article using the example of German lessons. However, they can also be used for any other foreign language. The exercises are about using Chat GPT in class and how to show students how to learn languages more effectively. For example, there is the possibility of having an authentic conversation with Chat GPT.Chat GPT can also correct errors in a text.The students can work with the prompt entered; for example, they can guess what it was.
Justification of choice of methods for diagnostics of insulation condition of electrical machines of electric railway stock
Authors: Dubravin Yuriy , Shostak Yaroslav , Bakhonya Vitaly , Tkachenko Viktor
Published: June 2024

The object of the study is the process of monitoring the technical condition of electrical insulation of traction electric machines in order to determine the need for their maintenance or repair. Diagnostics of electric machines is an important aspect of supporting the operation of electric drives. Failure of the windings is one of the main reasons for failure of electric motors. Therefore, the task of developing operational methods for diagnosing the insulation of windings of traction electric motors is urgent. A study of the negative impact of operating conditions on the technical condition of electrical insulation of motors was carried out. The analysis of the existing methods of diagnosis of insulation systems of electric machines was carried out. Special attention was paid to the selection of predictive parameters of the insulation state. A mathematical model was developed to study the frequency characteristics of the stator insulation system of the traction electric motor model AD914. Refined dependences of the effect of changes in the insulation parameters of the motor stator winding on its frequency characteristics were obtained. It was concluded that the method of monitoring the insulation state of electric motor windings based on the assessment of electrical resistance relative to the stator core and amplitude-frequency characteristics is the most effective. The field of practical application of the obtained results is the system for monitoring the condition of electrical insulation of traction electric machines to determine the schedule of their maintenance and repair. The conducted research is a scientific justification for the choice of methods and devices for diagnosing the insulation state of electric motors of railway traction rolling stock.
The Effects of Pricing Strategies on Team Revenues in the National Hockey League
Authors: Jane Wen-Jhan , Sasaki Masaru , Wang Jye-Shyan
Published: June 2024

Abstract: This paper investigates the effects of price discrimination on a team’s revenue in the National Hockey League (NHL) for the seasons from 2005/06 to 2014/15. The present research contributes to the literature in three ways. First, the empirical evidence shows that price discrimination increases team revenue. An additional ten-dollar increase in price discrimination brings a team an additional 0.76% in seasonal revenues. Second, raising prices increases overall team revenues. The evidence supports the hypothesis of inelastic pricing in the professional sports leagues. Third, an older team with a larger and historic stadium that performs better makes more money. All these findings are supported when the unobservable individual effects are controlled for.