bluuebunny/crossref_metadata_2025 huggingface dataset:
Wie man Russland schlagen kann – Lektionen aus dem Verteidigungskrieg der Ukrainer
Authors: Lange Nico
Published: March 2024

Der Artikel analysiert die Ursachen für den weitgehend erfolgreichen Widerstand der Ukrainer gegen die russische Aggression. Ein wesentlicher Grund für den Erfolg ist die umfassende Mitwirkung der Bevölkerung am bewaffneten Widerstand gegen die russische Invasion. Wichtig ist auch die Tatsache, dass die Ukraine eine sehr moderne datenbasierte Kampfführung betreibt, bei der Daten aus unterschiedlichen Quellen bezogen und verarbeitet werden, um diese zur Bekämpfung des russischen Militärs einzusetzen. Die ukrainischen Streitkräfte arbeiten zudem oft als dezentralisierte Netzwerke mit viel Führungsverantwortung auf unteren und mittleren Ebenen. Dies hat sich als enormer Vorteil erwiesen. In der Kriegführung hat es sich als sinnvoll herausgestellt, Angriffe auf Logistik, Führungseinrichtungen und Kommunikation des Gegners zu konzentrieren. Eine zentrale Rolle kommt im Ukraine-Krieg Drohnen zu, die massenweise im Einsatz sind. Beachtlich ist auch, dass die Ukrainer große Erfolge mit kleinsten Einheiten im Jagdkampf erzielen konnten. Zudem findet eine Renaissance der Artillerie statt, aber in erweiterter, fortgeschrittener Form. Ein weiterer Baustein des Erfolgs der Ukraine ist die komplexe und redundant strukturierte Logistik vor allem auf Schienen, die stabil auch unter Kriegsbedingungen funktioniert. Die Ukraine hat zudem ein hohes Maß an operativer Sicherheit herstellen können, welches wiederum die Voraussetzung für erfolgreiche Täuschungsoperationen war. Nicht zuletzt bietet die Ukraine ein exzellentes Beispiel dafür, wie man mit den richtigen Methoden und Narrativen den strategischen Informationskrieg gewinnen kann. Der Beitrag gelangt zu dem Schluss, dass die NATO-Militärs sehr viel von der Ukraine lernen können und dass die Erfahrungen des Krieges zur Anpassung ihrer Doktrinen und zu entsprechenden politischen Entscheidungen führen müssen.
Traveling Wave Solutions of Nonlinear Wave Equation Based on Functional Analysis and Multiple Variables as Applied to IoT
Authors: Zhang Cunxia
Published: March 2024

In applied mathematics, physics, and mechanics, many mathematical models are established in the form of nonlinear wave equations. Therefore, a method for studying traveling wave solutions of nonlinear wave equations based on functional analysis is proposed. The boundary value stability of the nonlinear second order nonlinear wave equation is modified by using functional analysis of multiple variables. In this paper, a new integral term is introduced into the organization mapping functional, the concept and construction of the nonlinear wave equation are analyzed, and its continuity is proved. According to the growth order of the traveling wave solution of nonlinear wave equation, the method of finding the traveling wave solution and its stability are studied.
The impact of the effective tax rate change on financial assets of commercial banks: The case of Visegrad group countries
Authors: Andrejovska Alena , Glova Jozef , Regaskova Martina , Slyvkanyc Natalia
Published: March 2024

While many tax professionals have discussed corporate taxation in the banking sector and its effectiveness on bank institutions, investment decisions, bank size, asset structure, or bank rentability, there is little evidence of tax efficiency within V-4 Group. The research on banks and tax rates is mainly based on American data. Few papers solved banking stability and corporate taxes within the European countries. This paper examines effective corporate taxation in the banking sector of the V-4 Group and aims to find out how the effective tax rate change affects commercial banks’ financial assets. In this study, we examine the relationship between variables using regression analysis in which we assess the impact of ETR on bank financial assets. We examined data in the consolidated financial statements data of commercial banks and tested their impact on the economy. Our findings supported the theory that ETR impacts the banking sector, particularly capital and equity financing. However, the results did not prove the research hypothesis, in which we assumed that an increase in ETR would lead to an increase in financial assets. Based on our results, it leads to an increase in equity assets (7.34%) and a decline in debt assets (16.83%).
Derivative Media: How Wall Street Devours Culture
Authors: deWaard Andrew
Published: March 2024

Sequels, reboots, franchises, and songs that remake old songs—does it feel like everything new in popular culture is just derivative of something old? Contrary to popular belief, the reason is not audiences or marketing, but Wall Street. In this book, Andrew deWaard shows how the financial sector is dismantling the creative capacity of cultural industries by upwardly redistributing wealth, consolidating corporate media, harming creative labor, and restricting our collective media culture. Moreover, financialization is transforming the very character of our mediascapes for branded transactions. Our media are increasingly shaped by the profit-extraction techniques of hedge funds, asset managers, venture capitalists, private equity firms, and derivatives traders. Illustrated with examples drawn from popular culture, Derivative Media offers readers the critical financial literacy necessary to understand the destructive financialization of film, television, and popular music—and provides a plan to reverse this dire threat to culture.
Treatment of unilateral cervical facet fractures without evidence of dislocation or subluxation: a narrative review and proposed treatment algorithm
Authors: Cirillo Juan Ignacio , Ricciardi Guillermo A , Alvarez Lemos Facundo Lisandro , Guiroy Alfredo , Yurac Ratko , Schnake Klaus , _ _
Published: March 2024

Isolated cervical spine facet fractures are often overlooked.

The primary imaging modality for diagnosing these injuries is a computed tomography scan.

Treatment of unilateral cervical facet fractures without evidence of dislocation or subluxation remains controversial. The available evidence regarding treatment options for these fractures is of low quality.

Risk factors associated with the failure of nonoperative treatment are: comminution of the articular mass or facet joint, acute radiculopathy, high body mass index, listhesis exceeding 2 mm, fragmental diastasis, acute disc injury, and bilateral fractures or fractures that adversely affect 40% of the intact lateral mass height or have an absolute height of 1 cm.
Combined knee osteotomy and cartilage procedure for varus knees: friend or foe? A narrative review of the literature
Authors: Mabrouk Ahmed , An Jae-Sung , Kley Kristian , Tapasvi Komal , Tapasvi Sachin , Ollivier Matthieu
Published: March 2024

Varus knees with associated cartilage pathologies are not uncommon scenarios that present to orthopaedic surgeons.

There is no agreement on the ideal management of varus knees with concomitant cartilage pathology.

Through a literature review, the authors tried to answer three main questions:

On October 2022, OVID MEDLINE, EMBASE, and COCHRANE databases were searched. Clinical studies reporting on clinical, radiologic, or macroscopic cartilage regeneration following either isolated knee osteotomy or concomitant osteotomy and a cartilage procedure were reviewed.

Despite controversies, the literature demonstrated favourable outcomes of combined knee osteotomy and a cartilage procedure in patients with substantial deformity and cartilage defects.

Isolated high tibial osteotomy may induce cartilage regeneration in several scenarios and severities of concomitant malalignment and cartilage defects.

There are recommendations that knee osteotomy should be added to a cartilage procedure when an extra-articular deformity of > 5° is detected.

Some studies report good outcomes for combining a knee osteotomy with cartilage grafting, but they lack a control group of isolated osteotomy.

There is still scarce of evidence on the influence of osteotomies on cartilage regeneration and the outcomes of concomitant osteotomy and different cartilage procedures vs isolated osteotomies.

With advanced statistical evaluation (artificial intelligence, machine learning) of big datasets, more answers and better results will be delivered.
Understanding the limits of a screening operation. Part 1: Characterization of screen plugging
Authors: Villalba Miguel E. , Olson James A. , Martinez D. Mark
Published: March 2024

Pressure screening is a critical step in the production of high-quality paper. In efforts to meet sustainable market demands, mill operators are forced to push the limits of screening operation to the point where plugging becomes a recurrent issue. This two-part study provides insights into the limits of screening operations. In the first part, some published imaging data was analyzed to delve into the plugging mechanisms. The observed hysteresis and intermittency were measured by image processing techniques, which revealed that an intermittent behavior of plug-and-release events is intensified as permanent, stable plugs start to form. The intermittency was characterized as changes in the distribution of open area fluctuation peaks. Thus, the kurtosis of the fluctuation peak distribution is proposed as a metric for a plugging soft-sensor. In part 2 of this investigation, the limits of screening operation were characterized by performing a series of screening trials. The utility of the soft-sensor metric for plugging was assessed with the pressure fluctuation data.
Interpretation of Neural Network Models – New Insights of Estimating Static Bottom-Hole Pressures of Gas Wells in Nigerian Petroleum Provinces
Authors: Udoma Clement E. , Okon Anietie N. , Udoeyop Stella U. , Okologume Wilfred C.
Published: March 2024

Methods to determine static bottom-hole pressure (BHP) from surface measurements include the average temperature and z-factor method, the Sukkar-Cornell method, the Cullender-Smith method, and the Poettmann method. Among these methods, the Poettmann method is preferable in the petroleum industry but with a concern for software developers, as the integral values to determine the static BHP are tabular. In this study, neural network-based models to predict the integral values using pseudo-reduced pressures and temperatures were developed. The 2-3-1, 2-4-1, and 2-5-1 neural-based models had overall correlation coefficients (R) of 0.9974, 0.99835, and 0.99745, respectively, for the maximum-minimum normalization method and R of 0.99745, 0.99805, and 0.9992 for the clip-scaling method. Comparing the models' predictions with the Lagrangian interpolated values resulted in R of 0.99895 and 0.9995 for the maximum-minimum and clip-scaling-based models. Thus, the developed models can predict Poettmann's integral values without table look-up to estimate static BHP in gas wells.
Hepatic steatosis: additional findings in the splanchnic system on magnetic resonance imaging
Authors: C Semelka MD Richard , Elias Jr, MD, PhD Jorge , Pereira MD José Castro , Ramalho MD Miguel
Published: March 2024

Purpose: To document additional findings in the Splanchnic System in patients with hepatosteatosis on clinical MR studies. Materials and Methods: One hundred randomly selected studies of patients with hepatosteatosis who underwent clinical MR studies during a six-month interval were included. Clinical information on the current requisition and prior abdominal studies within one year was recorded. No research or additional investigation into medical records was performed. Statistical analyses were performed. Results: Among 100 patients with hepatosteatosis, there were 59 Females (mean 52.6 years). The presenting complaint was abdominal pain, right upper quadrant, or general pain in 77. Ninety-nine patients showed increased enhancement of the upper GI tract in at least one segment (esophagus and duodenum most commonly). There was a significant association between the subjective grading of hepatosteatosis and bowel enhancement in the Splanchnic System (p=0.00049). Ninety-four were overweight/obese; 23 had pancreatic steatosis; 8 had mesenteric panniculitis. Other findings were recorded. Conclusion: Variable increased enhancement of the upper GI tract was present in almost all patients with hepatosteatosis, and various other abnormalities in the splanchnic system were observed. Hepatosteatosis and inflammation of the upper GI tract may be commonly present together and may be part of a larger picture of splanchnic abnormalities.
Early post-partum hemorrhage after spontaneous vaginal delivery: prevention and management done by midwives at butare university teaching hospital
Authors: Kanakuze Chris Adrien , Christine Ayinkamiye , Phoibe Uwizeyimana , Vestine Mukanziza
Published: March 2024

Background: Postpartum hemorrhage (PPH) is the leading cause of maternal death in low-income countries and is the primary cause of approximately one-quarter of global maternal deaths. The purpose of this paper is to assess the prevention and management of early postpartum hemorrhage (PPH) after spontaneous vaginal delivery at Butare University Teaching Hospital. Methods: Quantitative prospective observational study, 31 women in labor from the end of the second stage of labor to the end of early postpartum after spontaneous vaginal delivery during data collection period (From March 20th to April 2, 2015). The participant involved in this Evidence Based Practice was observed after getting and signing consent form. Patient’s files, data correction form was used to correct data. All processes were done after getting approval from ethical committee and Butare University Teaching Hospital research committee permission to conduct the project. The data were entered in SPSS version 16 for being analyzed; Microsoft word for text elaboration and Microsoft excel was used for making tables. Results: Active management of the third stage of labor is considered the “gold standard” strategy for reducing the incidence of PPH. It combines nondrug interventions (controlled cord trac­tion and cord clamping) with the administration of an uterotonics drug, Unfortunately, Oxytocin is used in majority of cases(93.5%:n=29) followed by uterine massage (67,7%:n=21), but the controlled cord traction is the last one with (54,8%:n=17).For management vital signs are taken at 100% (n=6),estimated blood loss done at 66.7% (n=4) differently, establish intravenous access and prevention of shock are done at (83.3%: n=5). Transfusion done at 50% (n=3) and catheterized bladder not done at 83.3% (n=5). Conclusion: As the main cause of maternal mortality worldwide, PPH prevention interventions need to be prioritized. Increased access to prophylactic uterotonics, regardless of where deliveries occur, should be the primary means of reducing the complication of PPH.
On the Dirichlet problem for beltrami equations with sources in simply connected domains
Authors: Gutlyanskiĭ V.Ya. , Nesmelova O.V. , Ryazanov V.I. , Yakubov E.
Published: March 2024

In this paper, we present our recent results on the solvability of the Dirichlet problem Reω(z) → φ (ζ) as z → ζ, z∈ D, ζ∈ ∂D, with continuous boundary data φ: ∂D ???? R for degenerate Beltrami equations ωz =µ(z)ω2 + σ(z), |µ(z) ˂ 1 a.e., with sources σ: D → C that belong to the class Lp (D), p ˃ 2, and have compact supports in D. In the case of locally uniform ellipticity of the equations, we formulate, in arbitrary simply connected domains D of the complex plane C a series of eff ective integral criteria of the type of BMO, FMO, Calderon-Zygmund, Lehto and Orlicz on singularities of the equations at the boundary for existence of locally Hölder continuous solutions in the class W1.2loc (D)  of the Dirichlet problem with their representation through the so-called generalized analytic functions with sources.
Закономірності географічного поширення пухнастодубових лісів рівнинної частини України
Authors: Мельник В.І. , Солоненченко Ю.В. , Діденко С.Я.
Published: March 2024

Встановлення закономірностей географічного поширення та сучасного стану раритетних фітоценозів є актуальним завданням екологічних досліджень. Ліси дуба пухнастого (Quercus pubescens Willd.) є найбільш рідкісними лісовими угрупованнями рівнинної частини України. На відміну від широкопоширених в Україні гірських пухнастодубових лісів, які формують висотний пояс рослинності в горах Криму, острівні рівнинні пухнастодубові ліси надзвичайно рідкісні. Вони зафіксовані лише в Одеській і Вінницькій областях, де зростають на східній межі ареалу в Європі, яка проходить вздовж р. Дністер, його притоки Кучурган і р. Великий Куяльник. У фітогеографічному відношенні рівнинні пухнастодубові ліси України становлять єдине ціле з гірнецями Молдови, які поширені на протилежному березі Дністра. Загалом рівнинні пухнастодубові ліси Південно-Східної Європи є екстразональними реліктовими угрупованнями, ареал яких в рис-вюрмському міжльодовиков’ї досягав Волинської височини. Вирубування пухнастодубових лісів, випасання худоби, заміщення природних лісів лісовими культурами призвело до інсуляризації ареалу Quercus pubescens на його східній межі і деградації популяцій. Однак висновок про елімінацію пухнастодубових лісів Південно-Західної України і необхідність їх вилучення із Зеленої книги України є передчасним, оскільки збереглись осередки зростання Quercus pubescens у заказниках “Павлівський” та “Діброва Манзирська” в Одеській області і на лівому березі р. Дністер у Вінницькій області. Зважаючи на високу фітосозологічну цінність цього лісового масиву, його необхідно взяти під охорону на правах ботанічного заказника.
Addressing diversity: An analysis of German curricula for history
Authors: Barsch Sebastian
Published: March 2024

This article analyses the extent to which German history curricula address aspects of diversity. The curricula are analysed in terms of whether they include diagnostic phases to identify students' individual interests. It also examines whether the historical experiences of minorities and the agency of subaltern groups are addressed. The extent to which the curricula abandon a Eurocentric perspective and integrate global historical aspects will also be considered. Methodologically, the curricula of two main school types in all German states were analysed by means of a qualitative content analysis. The focus was on curricula for lower and upper secondary schools. The results show that diversity is usually addressed only from the perspective of established narratives. A national and Eurocentric history continues to dominate the curricula. Only a few curricula explicitly address the diagnosis of students' performance and ideas. Finally, the paper discusses the evolving nature of curricula, influenced by societal needs and growing sensitivity to social diversity. It highlights the need for future research on diversity in teacher education and the practicality of implementing complex concepts such as postcolonial thought in the classroom. More empirical research is needed on current curricula and the teaching of history in different regions and types of school.
Research and development of Lycium barbarum compound beverage and preliminary verification of its efficacy
Authors: Xie N.H. , Ye Z.J. , Zhang Y.T. , Gao J.S.
Published: March 2024

Lycium barbarum contains a variety of phytochemicals, primarily polysaccharides, and other potent compounds. L. barbarum is a plant that has several uses in contemporary society, including food processing and everyday eating. However, through traditional processing methods the medicinal or edible value of L. barbarum cannot be fully exploited, to further improve the utilisation rate of L. barbarum and enrich the variety of L. barbarum market. The L. barbarum compound beverage, which uses L. barbarum as its primary ingredient, was created through a series of trials, including the creation of tea beverage recipes and research on the most suitable content of stabilisers, flavouring agent formulations and so on. In addition, several validation tests, including those involving hypoglycaemic and lipid-lowering were conducted. The results indicated that 0.1 g mL−1 stabiliser CMC-Na, 0.2 g mL−1 erythritol, 3 g mL−1 citric acid, 8% L. barbarum juice, and 6% chrysanthemum tea cold brew extract were the best combinations for food additive formulations. Additionally, compound beverages have hypoglycemic and lipid-lowering effects. In conclusion, the research and development of L. barbarum compound beverages can not only increase the rate at which L. barbarum is utilised but also offer fresh ideas for the research and development of L. barbarum as they transition from cash crop agricultural products to market-oriented standardised processed products.
Disassembling the gendered archetype of the male jazz impresario in the United States
Authors: McGee Kristin , Leidinger Nora
Published: March 2024

In the United States, jazz impresarios historically inhabited the quintessential cosmopolitan role of (white) male jazz critic and intrepid discoverer of Black musical creativity. This article explores the once entrenched and yet recently challenged gendered and cultural dynamics surrounding the powerful jazz impresario role in an era transitioning from a local individualized coterie of fans and critics with liberal socio-cultural politics to a more specialized, transnationally networked world of professionalized music agents and institutions. To trace this role, the seminal jazz impresarios John Hammond and George Wein are recollected, uncovering their particular embodied enactment of masculinity within the American jazz presentation and festival world. Through second-wave feminist initiatives, a critical counterpoint to this prominent role is explored, including the efforts of pioneering Black musicians and composers Melba Liston and Mary Lou Williams in the 1960s, the first Women in Jazz Festival programmers Carol Comer and Dianne Gregg during the 1970s and 1980s, and the tireless efforts of record label owner, critic,  and concert promoter Rosetta Reitz during the 1980s and 1990s. These contrasting legacies set the stage for new avenues of curatorship and jazz presentation which take into account intersectional obstacles and experiences of both women in jazz as well as women behind the scenes in the American jazz music industry.
Heather Hiestand: The Marquess of Cake
Authors: Boermans Mary-Anne
Published: March 2024

Heather Hiestand: The Marquess of Cake: Kensington Trade, 2013: 252 pp., paperback, £11.87.
Derechos humanos y dignidad de la persona. Los aspectos problemáticos en la perspectiva de Santo Tomás de Aquino
Authors: Alvear-Téllez Julio
Published: March 2024

En el presente trabajo se exponen los aspectos problematicos de la tesis que funda los derechos humanos en la dignidad de la persona. Siguiendo la metafisica de la persona de Santo Tomas de Aquino, se estudia la consistencia ontologica a que refiere este termino. Luego se revisa la inspiracion ideologica tanto de los modernos ≪derechos humanos≫ como de la dignidad de lastre kantiano. Los elementos de derecho natural que aun perduran en la moderna teoria de los derechos humanos se fundan en la naturaleza humana, no directa ni exclusivamente en la dignidad ontologica de persona.
La politicidad del derecho y las sentencias judiciales
Authors: Podrez-Yaniz Javier-A.
Published: March 2024

La politicidad del derecho en general, básicamente consistente en su orientación final al bien común político, ha sido sostenida por autorizada doctrina en el ámbito del realismo clásico. Ello no obstante, la procuración del bien común político a través del derecho ha sido predominantemente reconocida en el plano de la actividad legislativa (causa eficiente mediata del derecho) con algún grado de soslayo respecto de su presencia en lo justo concreto y –particularmente– en lo justo concreto judicial (causa eficiente inmediata del derecho). Frente a las prácticas anómalas conocidas como la «politización del derecho» o la «judicialización de la política» resulta pertinente comprender el alcance y sentido de la politicidad de las sentencias judiciales correctamente concebida.
Recensión de libro: F. Viola, 1900-2020. Una storia del diritto naturale, G. Giappichelli Editore (Col. «Recta Rtio. Testi e Studi di Filosofia del Diritto», 7), Torino, 2021, IX+189 pp., ISBN 978-88-921-3891-9
Authors: Reyes-Mauret Constanza
Published: March 2024

Book Review
Welding room development for simultaneous improvement of welder health and weld quality of gas metals arc welded aluminum AA5083-H112
Authors: Triyono Triyono , Harseno Anton , Muhayat Nurul
Published: March 2024

This study investigated the weld joint mechanical properties and welding fume exposure associated with Gas Metal Arc Welding of aluminum AA5083-H112 in 27 different welding room environment conditions. These conditions consist of variation in temperature, as well as intake and exhaust wind velocities. The temperature varies as 19 °C, 27 °C and 35 °C. Both the intake and exhaust velocity vary as 0 m/s, 3.1 m/s and 5.5 m/s. The experimental findings underscore the pronounced influence of these factors on both weld quality and welder exposure to fumes. Notably, intake wind velocity emerges as the most critical factor, contributing significantly to 47.68 % in weld joint tensile strength. The temperature emerges as the least critical factor with 12.02 % of contribution. However, temperature became the most critical factor on weld joint impact energy with 54.89 % of contribution while exhaust wind velocity became the least with 3.89 %. Air quality monitoring highlights the importance of optimal intake and exhaust fan configuration to effectively reduce fume exposure. All examined welding room environment condition are deemed safe for the welder, as they do not exceed the Treshold Limit Value (TLV), except the condition where the welding room lacks of air circulation in intake and exhaust wind velocity of 0 m/s. The identified optimal welding room condition exerts a temperature of 27 °C, intake and exhaust wind velocity of 0 m/s and 3.1 m/s respectively. This condition not only achieves established weld quality standards but also ensures compliance with fume exposure regulation. This research provides valuable insights for optimizing welding room environment to simultaneously maintain weld quality and safeguard the well-being of welders
Determining features in the application of redundancy for the thermistor cubic transformation function using computer simulation
Authors: Shcherban’ Volodymyr , Korohod Hanna , Kolysko Oksana , Kyrychenko Anton , Shcherban’ Yury , Shchutska Ganna
Published: March 2024

The object of research is the process of temperature measurement with a platinum thermistor. We have conducted studies on the cubic transformation function of the thermistor when using redundancy that yielded the equation of redundant measurements of the desired temperature. Owing to this, it became possible to directly apply the resulting equation without additional measures to linearize the function of the thermistor transformation. In addition, the obtained value of the desired temperature does not depend on the values of the parameters of the cubic transformation function and their deviations from the nominal values. Experimental studies have proven that the value of the normalized temperature T0 has a greater influence on the result of redundant measurements and the value of the normalized temperature DT on the entire range of measured temperatures Tx is almost unaffected. The best accuracy results (value of relative error δ=0.02 %) were obtained at T0 values lower than –60 °C. When the error of reproduction of normalized temperatures increased from ±0.02 °C to ±0.1 °C, the best accuracy results (value of relative error δ=0.06 %) were obtained at values of normalized temperature T0 below –130 °C. Analysis of results of the absolute error DT revealed that with an error of reproduction of normalized temperatures of ±0.02 °C and at T0=–180 °C, its value does not exceed 0.02 °C, that is, it is within the error of reproduction of normalized temperatures. This allows us to state that it is recommended to use sources of standardized temperatures of high accuracy during measurement control.
Thus, there are reasons to assert the prospect for redundant measurements when directly measuring temperature with a thermistor with a cubic transformation function with high accuracy
Implementing surface treatment and adhesive variations for bonded joints between composite gfrp and aluminum at 200 °C
Authors: Purnomo Herry , Rifa’i Muhammad Johan , Purwoko Purwoko , Vicarneltor David Natanael , Ibadi Mahfud , Setianto Muhamad Hananuputra , Yudanto Maulana , Rizkyta Ara Gradiniar
Published: March 2024

Bonding dissimilar materials, specifically Glass Fiber Reinforced Polymer (GFRP) and Aluminum 6061 T651, at elevated temperatures, such as in fire accidents is challenging, where structural integrity and reliability are critical. We studied how surface roughness treatment affects the joint strength of three common adhesives in aircraft (Click Bond CB394-43, Loctite A9396, A9394) at 200 °C. The GFRP, composed of Gurit Prime 37 epoxy resin and E-Glass 7781 fibers produced through vacuum infusion with dimensions following ASTM D5868 standards, was lap shear tested with 2 mm/s stroke. Findings showed a substantial enhancement in joint strength due to surface treatment, sanding with 100-grid sandpaper for 20 seconds in parallel with the fiber direction, for all adhesives. A9396, A9394, and CB394-43 exhibited remarkable improvements of 1091.67 %, 45.92 %, and 30.09 %, respectively. The strain at break showed significant increases of 51.61 %, 121.95 %, and 100 %, respectively. Both surface-treated and untreated A9394 samples showed the highest strength among the adhesives. A9396 exhibited lower strength than CB394-43 without surface treatment, but it outperformed when surface-treated, highlighting its response to surface modification. Adhesive viscosity influences penetration on material surfaces, with A9396 being stiffer than the other adhesives. The analysis of ISO 4287 Ra values revealed that surface treatment led to increased roughness on the Aluminum surface while reducing roughness on the GFRP surface. These results offer valuable insights for optimizing GFRP-Aluminum bonding under elevated temperature conditions. Adjusting surface roughness significantly improves the interaction between Aluminum and GFRP with adhesives, resulting in enhanced joint strength. This knowledge can be applied in various engineering applications, particularly in industries where the performance and reliability of bonded joints are critical under high-temperature environments
Devising a method for the virtual clustering of the Internet of Things edge environment
Authors: Kuchuk Heorhii , Mozhaiev Oleksandr , Kuchuk Nina , Tiulieniev Serhii , Mozhaiev Mykhailo , Gnusov Yurii , Tsuranov Mykhailo , Bykova Tetiana , Klivets Sergii , Kuleshov Alexander
Published: March 2024

The object of research is the process of load distribution in the edge environment of the Internet of Things.
The task to improve the efficiency of the functioning of the network of computing devices in the Internet of Things edge environment has been solved. Free resources of heterogeneous single-board computers were used to this end.
In the process of conducting research, an approach to the construction of an architecture for a virtual cluster of computers with limited resources was devised. The design took into account specific features of the edge environment on the Internet of Things. This has made it possible to propose a four-layer architecture instead of the standard seven-layer architecture of IoT sensor information processing device networks.
Stages in the virtual cluster construction in the edge environment on the Internet of Things were also defined. A three-stage procedure to form a virtual cluster was justified. This procedure made it possible to devise a method for the virtual clustering in the Internet of Things edge environment based on the proposed virtual cluster architecture.
The proposed method for building a virtual cluster in the Internet of Things edge environment was investigated. With a small network load, a virtual cluster has no advantage over a classic cluster. But with the growth of the network load, the virtual cluster prevails over the classic cluster in total performance; the advantage in total performance can exceed 10 %. It was also proven that for a heterogeneous environment, performance changes at full network load significantly depend on the number of virtual node groups. The research results on the method for building a virtual cluster in the Internet of Things edge environment can be explained by improving the balance of the network load at virtual clustering
Development of a method of increasing the efficiency of decision-making in organizational and technical systems
Authors: Owaid Salman Rasheed , Zhuravskyi Yurii , Lytvynenko Oleksandr , Veretnov Andrii , Sokolovskyi Dmytro , Plekhova Ganna , Hrinkov Volodymyr , Pluhina Tetiana , Neronov Serhii , Dovbenko Oleksii
Published: March 2024

The object of the study is organizational and technical systems. The subject of the study is the decision-making process in the problems of management of organizational and technical systems. A method of increasing the efficiency of decision-making in organizational and technical systems using artificial intelligence is proposed. The research is based on the giant armadillo swarm algorithm to find a solution regarding the state of organizational and technical systems. Giant armadillo agents (GAA) are trained using evolving artificial neural networks, and an advanced genetic algorithm is used to select the best GAA. The method has the following sequence of actions:
– input of initial data;
– setting GAA on the search plane;
– numbering GAA in the swarm;
– determining the initial velocity of GAA;
– preliminary evaluation of the GAA search area;
– classification of food sources for GAA;
– sorting the best GAA individuals;
– attack on termite mounds by GAA;
– digging termite mounds by GAA;
– updating GAA positions;
– checking for the presence of a GAA predator;
– escape and fight against GAA predators;
– checking the stop criterion;
– training GAA knowledge bases;
– determining the amount of necessary computing resources of the intelligent decision support system.
The originality of the proposed method lies in setting GAA taking into account the uncertainty of the initial data, advanced procedures of global and local search taking into account the noise degree of data on the state of organizational and technical systems. The method makes it possible to increase the efficiency of data processing at the level of 14–19 % using additional advanced procedures. The proposed method should be used to solve the problems of evaluating complex and dynamic processes
Improving a method for non-coherent processing of signals by a network of two small-sized radars for detecting a stealth unmanned aerial vehicle
Authors: Khudov Hennadii , Yarosh Serhii , Kostyria Oleksandr , Oleksenko Oleksandr , Khomik Mykola , Zvonko Andrii , Lisohorskyi Bohdan , Mynko Petro , Sukonko Serhii , Kravets Taras
Published: March 2024

The object of this study is the process of detecting stealth unmanned aerial vehicles by a network of two small-sized radars with incoherent signal processing. The main hypothesis of the study assumed that combining two small-sized radars into a network could improve the quality of detection of stealth unmanned aerial vehicles with incoherent signal processing.
The improved method for detecting a stealth unmanned aerial vehicle by a network of two small-sized radars with incoherent signal processing, unlike the known ones, provides for the following:
– synchronous inspection of the airspace by small-sized radars;
– sounding signal emission by each small-sized radar;
– reception of echo signals from a stealth unmanned aerial vehicle by two small-sized radars;
– coordinated filtering of incoming echo signals (separation of echo signals);
– quadratic detection of signals at the outputs of matched filters;
– summation of the detected signals at the outputs of the matched filters;
– summation of the outputs of adders of two small-sized radars.
The scheme of a stealth unmanned aerial vehicle detector is presented, optimal according to the Neumann-Pearson criterion, with incoherent signal processing.
The quality of detection of a stealth unmanned aerial vehicle by a network of two small-sized radars with incoherent signal processing was evaluated. It was found that with incoherent processing, the gain in the value of the conditional probability of correct detection is on average from 19 % to 26 %, depending on the value of the signal-to-noise ratio. The gain in the value of the conditional probability of correct detection is greater at low values of the signal-to-noise ratio. At the same time, the gain in signal-to-noise value is more significant with coherent signal processing than with non-coherent signal processing by a network of two small-sized radars
Implementation of digital innovation on sustainability performance: the moderating role of green accounting in the industrial sector
Authors: Lisnawati Lisna , Aryati Titik , Gunawan Juniati
Published: March 2024

Innovation is the solution that allows digital transformation to be implemented in many industrial sectors. With digital innovation, companies can move more freely in achieving sustainability performance, because digitalization is a cross-border discipline. Empirical studies that directly link digital innovation, sustainability and accounting are still very limited. To fill this gap, this study aims to examine the role of green accounting in the influence of human capacity building, digital innovation, and sustainability strategy on sustainability performance. This study employs quantitative content analysis on the annual reports and sustainability in the industrial sector listed on the IDX 2021–2022, comprising a total of 792 observational data using the PLS. The research results indicate that an increase of 32 % in human capacity building, 14 % in digital innovation and 12 % in sustainability strategy has a significant impact on sustainability performance. Another finding shows the results that green accounting is only able to strengthen the influence of digital innovation on sustainability performance and the rest weakens and does not even have a role as a moderating variable. The implications of this study are theoretically the development of new measures of digital innovation for the industrial sector. The practical implications suggest that to enhance sustainability performance, digital innovation is needed, starting from a pervasive digital culture extending to various aspects, including digital products, services & solution, digital supply chains, and digital accounting. The implications of implementing green accounting for industries indicate a 6.9 percent increase in the influence of digital innovation on sustainability performance
Construction of systemic interaction between tools of remote monitoring of the technical condition and operation modes of a truck vehicle
Authors: Gritsuk Igor , Khudiakov Igor , Volodarets Mykyta , Pohorletskyi Dmytro , Pohorletska Nadiia , Ukrainskyi Yevhen , Petrov Igor , Nosov Pavlo , Tazhenov Askar , Litvinov Mikhaylo
Published: March 2024

Parameters of the technical condition of transportation means in modern transport-logistics and infrastructure systems are an integral element of their communication support. This is enabled by the use of remote information monitoring technologies in control processes. The object of this study is the processes of vehicle remote monitoring in terms of determining the technical condition. The work addressed the task of improving the process of vehicle technical operation through the construction of a model of the remote monitoring system of its technical condition. A remote version of the information-analytical monitoring system was implemented. The work considers the system interaction of the means of remote monitoring of the state of a vehicle to ensure control under the operating conditions of the driver's work and rest modes. Road, transport, climatic conditions, etc. were taken into account. Considering these features, an information and analytical model of the system for remote monitoring of vehicle condition was built. Features of the subject area of the system are described using a DFD diagram. A structured information model of the information-communication system has been constructed, which has the ability to actually provide vehicle remote monitoring, the driver's work and rest modes, and his/her physical condition. The results, subject to the use of the V2I information model in the field of transport, allow remote monitoring of the vehicle technical condition. Specifically, to analyze the influence of changes in the physical condition and modes of work and rest of drivers on changes in the vehicle operating parameters
Method for early ignition detection based on the sampling dispersion of dangerous parameter
Authors: Pospelov Boris , Rybka Evgenіy , Krainiukov Olekcii , Fedyna Vasyl , Bezuhla Yuliia , Melnychenko Andrii , Borodych Pavlo , Hryshko Svitlana , Manzhura Svyatoslav , Yesipova Olha
Published: March 2024

The object of the study is the selective dispersion of dangerous parameters of the gas environment during material fires. The practical importance of research consists in using the difference of sample dispersions of dangerous parameters of the gas environment on the intervals of absence and presence of ignition of materials for detection of ignition. The theoretical substantiation of the method of detecting fires in premises based on sample dispersions of current measurements of an arbitrary dangerous parameter of the gas environment, corresponding to the general populations of reliable absence and presence of fire, has been carried out. The method, at a given level of significance, determines the unbiased uniformly most powerful fire detection rule. This makes it possible to determine how much differences in sample variances are significant with a given level of significance and are caused by ignition or are random factors. Laboratory experiments were conducted to verify the proposed method. It was established that the influence of ignition on the value of the difference in the sample dispersion at the corresponding intervals of monitoring the carbon monoxide concentration, smoke density, and temperature of the gaseous environment of the laboratory chamber is different and depends on the type of ignition material. At the same time, the minimum difference of the sample dispersions is characteristic for observing the smoke density for all the studied materials. However, early detection of ignition of alcohol, paper, wood, and textiles when observing the smoke density is carried out when the threshold is exceeded by 9.01, 5.31, 2.13 and 2.55 times, respectively. It is shown that the method of early detection of fires, which is based on the detection of significant differences in sample dispersions of data from the relevant general populations
Directions for improving the concept of technology for the purpose of financial support for their transfer within the European Union
Authors: Davydiuk Oleksandr , Ivanova Hanna , Sivash Olena , Lisohorova Kateryna , Sharenko Maxim , Klierini Harri
Published: March 2024

The object of this study is the essence and directions of improvement of the normative construction of the concept of technology, which is used within the framework of legal regulation of financial support of the innovation process and technology transfer within the framework of the law of the European Union. In the course of summarizing and studying the existing regulations, it was established that they are not unified and differ significantly. This does not meet the needs of participants in the innovation process and subjects of technology transfer. It has been proven that the most negative impact of the disparity of legal regulation occurs during the implementation of means of financial support for innovative processes. The expediency of improving the existing concept of technology definition by fixing its single generalized definition has been substantiated. Authentic definition of technology is proposed as information of an organizational and technical nature about the sequence of production operations, which can be expressed in the form of the results of scientific research, research and design works, a system of objects of intellectual property rights, information of an organizational and technical nature, technological documentation, equipment, tools, machines, and mechanisms. It was substantiated that this definition makes it possible to eliminate most of the identified problems and is formed on the basis of the existing needs of the participants of technology transfer.
The study is aimed at the formation of general theoretical foundations for improving the essence of technology for the purposes of legal support for financial support of innovation processes and technology transfer in the European Union. The research results could be used in the formation of international normative acts, acts of national legislation, and serve as a basis for further scientific research on these issues
The EU Green Industrial Policy for Hydrogen Economy Development
Authors: Brusiło Paweł
Published: March 2024

This article examines the significance of green industrial policy in advancing the hydrogen economy within the European Union, and explores how hydrogen, as a versatile energy carrier, offers a solution for decarbonising sectors where emission reduction is both urgent and challenging. The evolution of the hydrogen economy, from its initial concept linked to nuclear power to its current association with renewable energy sources, is outlined, emphasising its potential to reduce carbon emissions and its growing significance in the EU’s energy mix. First, the author discusses the strategic planning in economic policy and then delves into the concept of green industrial policy, its theoretical underpinnings, and empirical evidence from the EU. The focus then shifts to the EU’s hydrogen strategy, including its objectives and critical actions for developing the hydrogen economy. The article discusses the role of hydrogen in the EU’s green industrial policy, specifically in energy, transportation, and heavy industry sectors, and the efforts to increase the use of renewable hydrogen. The conclusion highlights the multifaceted functions of green industrial policy in addressing market failures, fostering new pathways, and disrupting the old ones, and how the EU’s approach to developing a hydrogen economy exemplifies this policy. The research, confined to 2019-2023, provides insights into integrating environmental considerations in industrial policy, suggesting that the EU’s strategy and policy serve as a model approach in this domain.
Notas editoriales
Authors: Díez Jiménez Adriano , Jimenez Villa Carlos , Fontalvo Gomez Roxana
Published: March 2024

Editorial
Mimesis, Diegesis, and Narrative Frames: Gregory, Beckett, McGuinness
Authors: Remport Eglantina
Published: March 2024

Location always matters – especially in Irish drama. Drawing on the spatial theories of Michael Issacharoff, Hélène Laliberté and Ruth Ronen, the article investigates the unique interplay between dramatic space and the thematic concept of the universal in three Irish plays: Augusta Gregory’s The Workhouse Ward (1908), Samuel Beckett’s Waiting for Godot (1953/55) and Frank McGuinness’s Observe the Sons of Ulster Marching Towards the Somme (1985). I trace a special line of influence between these plays through the lens of spatial theory, and further the discussion of the geographies of Irish drama as examined in Chris Morash and Shaun Richard’s Mapping Irish Theatre: Theories of Space and Place (2013).