bluuebunny/crossref_metadata_2025_split huggingface dataset:
Особливості анізотропного конденсатора
Authors: Ащеулов Анатолій Анатолійович , Дерев’янчук Микола Ярославович 
Published: February 2025

Конденсатори є ключовими компонентами сучасних інфокомунікаційних систем завдяки їх здатності зберігати та фільтрувати електричний заряд. Вони забезпечують стабільну роботу електронних схем, згладжуючи пульсації напруги та усуваючи високочастотні шуми. У фільтрах конденсатори допомагають вибирати або блокувати певні частоти, що є важливим для підтримки чіткого та безперебійного зв’язку. Крім того, конденсатори відіграють важливу роль у резонансних підсилювачах і антенних системах, де вони допомагають підсилювати сигнали на різних частотах і підвищувати ефективність передачі та прийому даних. У цьому дослідженні проведено порівняльний аналіз можливостей конденсаторів з ізотропного та анізотропного уніполярних діелектричних матеріалів. В обох випадках досліджено залежність частоти fr від фізичних характеристик матеріалу, таких як коефіцієнт заломлення n та геометричні розміри пластини a×b×c. Встановлено, що, на відміну від конденсатора з ізотропного матеріалу, анізотропний уніполярний діелектричний конденсатор характеризується наявністю двох резонансних частот та , що значно розширює можливості його практичного застосування. Використання конденсаторів із двома резонансними частотами дозволяє створювати складніші фільтри та системи, які можуть працювати на кількох частотних діапазонах, що є критично важливим для сучасних багаточастотних телекомунікаційних мереж. Використання цієї особливості конденсаторів буде корисним для мобільних пристроїв, які мають підтримувати різні стандарти зв’язку (Wi-Fi, Bluetooth, LTE, 5–6G).
Empowering Higher Education Through Digital Transformation and Strategic Planning for Academic Advancement
Authors: Al-Shamsi Ibrahim Rashid 
Published: February 2025

The digitalization of strategic planning is crucial for Oman's postsecondary higher education. This study focuses on the impact of automating and digitalizing strategic planning management to bridge gaps and improve decision-making. Aligning strategies with goals through digitalization enhances academic excellence and global recognition, providing valuable insights for Omani higher education managers. Investigating strategic planning automation in non-Western settings, it advocates for integrating digital tools to advance academia globally. The main objective is to assess how automation and digital information affect these institutions' effectiveness, accuracy, and efficiency in strategic planning. Structural Equation Modeling (SEM) used as the primary methodology. The dataset consists of 224 participants and 15 indicators. Both the measurement model and structural model were employed for analysis and testing. The results show that a two-tailed test with t=-1.96 at a 95% significance level found automation significantly affects strategic planning (B=0.36, t=2.97, p=0.000), and digitalization significantly affects strategic planning (B=0.30, t=2.68, p=0.01). Mediation analysis of automation as a mediator revealed a noteworthy indirect relationship between digitalization and effective strategic planning (B=0.30, t=2.96, p=0.000). While automation offers many advantages, digitalization enables a more comprehensive and fundamental change that supports various strategic goals. By integrating digitalization into their strategic planning, organizations can create a robust digital infrastructure that improves data capabilities, encourages innovation, and boosts agility, providing a sense of security about the future of Omani higher education. This positions them for long-term success and resilience in the face of changes in the business environment. Doi: 10.28991/ESJ-2024-SIED1-019 Full Text: PDF
Innovative Chemical Engineering Education: Social Media-Enhanced Project-Based Learning Approaches
Authors: Guaya Diana E. , Jaramillo-Fierro Ximena V. , Meneses Miguel A. , Valarezo Eduardo 
Published: February 2025

This study investigates the integration of social media platforms, specifically YouTube and TikTok, as educational tools in Project-Based Learning (PBL) within chemical engineering courses, with a particularly focus on Unit Operations. The research involved seventy-eight students from the Universidad Técnica Particular de Loja across two consecutive semesters (April-August 2022 and October 2022-February 2023). Students were tasked with creating educational videos to communicate complex engineering concepts. YouTube was utilized for longer, detailed explanations, while TikTok was employed for short, engaging content. The results demonstrate the effectiveness of this method in enhancing student engagement and comprehension of both theoretical and practical concepts. Instructors observed substantial improvements in student creativity and digital literacy. Quantitative data, such as average course scores, and qualitative feedback from instructors highlight both the strengths and challenges of leveraging social media as a learning tool. A project evaluation rubric was developed to assess performance across several dimensions, including content mastery, practical application, creativity, and engagement. The study concludes that the combination of PBL with social media platforms creates a dynamic, interactive learning environment that cultivates essential skills for future engineers. However, it also identifies areas for refinement, particularly in terms of effective communication through digital media formats. Doi: 10.28991/ESJ-2024-SIED1-021 Full Text: PDF
Using Mixed Reality (MR) as an Emerging Technology for Improving Higher Education: Analysis of Mental Workload
Authors: Criollo-C Santiago , Guerrero-Arias Andrea , Buenaño-Fernández Diego , Jaramillo-Alcazar Ángel , Luján-Mora Sergio 
Published: February 2025

This study aims to evaluate the mental workload perceived by students when using Build_3D, a mixed reality (MR) application, as an educational tool for learning PC and smartphone hardware, as well as to analyze teachers' perceptions of its impact on the teaching process. The NASA-TLX tool was applied to measure mental workload in 60 students, assessing six dimensions: mental demand, physical demand, temporal demand, perceived performance, effort, and frustration level. Additionally, qualitative observations were collected from teachers regarding the use of MR in practical learning environments. The results show that the perceived performance dimension achieved the highest score, highlighting the application’s effectiveness in improving learning outcomes. Mental and temporal demands were moderate, while effort, frustration, and physical demand were low. Teachers noted that Build_3D enhances practical learning by enabling the repetition of complex tasks and fostering student motivation through immersive experiences. As a novel contribution, the study highlights the capacity of MR tools to integrate theoretical and practical concepts in an interactive environment, reducing cognitive load and promoting autonomous and personalized learning. Doi: 10.28991/ESJ-2024-SIED1-024 Full Text: PDF
PRICING POLICY OF AN ENTERPRISE IN CONDITIONS OF INSTABILITY
Authors: Yevtushenko Natalia , Vasilkova Natalia 
Published: February 2025

The article proves the role of price as a complex economic category in enterprise management. It found that it is an essential element of the marketing toolkit.
The article considers interrelated indicators that characterize the dynamics of prices on the market from the side of consumers and producers. These include the consumer price index and the producer price index. The indices' analysis (2016-2024) revealed their unstable dynamics. There are also separate periods (2019; 2021) with significant imbalances in the economic law of supply and demand in the goods (services) market and inflationary precursors.
The study showed that the growth rates of producer prices are unstable and depend on many factors. In this regard, the authors systematized the factors influencing the pricing processes and selected the most important ones, which can be categorized into two main types: internal and external. The internal factors affecting the pricing decisions of an enterprise are proposed to include, in particular, the mission of the enterprise, strategic and current goals, enterprise costs, pricing principles, human resources, and the image of the enterprise. The external factors of influence are proposed to include the features of the credit and monetary system, the level of inflation, price regulation policy, the market, price elasticity of demand, the supply of goods and services, competitors' activities, the competitive positions of the enterprise, and others. According to the authors, the life cycle stage of goods (services) should be attributed to internal and external pricing factors.
The content of an enterprise's "marketing pricing policy" is substantiated, and the author's view on its essential characteristics is presented. Authors suggest that marketing pricing policy is the art of managing enterprise prices based on a set of marketing principles and pricing methods, taking into account the desires and capabilities of consumers, competitors' offers, and the predicted effect of other pricing factors, which helps the enterprise to obtain planned profits in the long term.
Toward increasing relevance of the U.S. Army’s Deployment Cycle Resilience Training: A Quality Improvement Evaluation
Authors: Knust Susannah K. , Booth Laurel C. , Toner Kelly A. , Novosel-Lingat John Eric M. , Adrian Amanda L. 
Published: February 2025

LAY SUMMARY The objective of the Deployment Cycle Resilience Training is to prepare U.S. Army soldiers and their spouses for stressors and challenges that are commonly experienced by military personnel and their families prior to, during, and after deployment. This training is re-evaluated on a routine basis to ensure that the content remains current. In the most recent evaluation of the training, the evaluation team found strengths of the curriculum to sustain as well as areas for improvement. The authors describe the evaluation process and present recommendations for creating a more relevant and relatable training through revisions to facilitate engagement for all service components (i.e., active duty, army reserves and the National Guard) and broaden the soldiers’ support network to include partners, parents, and friends.
Predicting well-being among military health care workers: The role of self-care and leadership
Authors: Start Amanda R. , Novosel-Lingat John Eric M. , Allard Yvonne S. , Adler Amy B. 
Published: February 2025

LAY SUMMARY Similar to civilian health care workers, military health care workers may experience burnout and a loss of compassion for their patients because of factors related to the profession. As a result, military health care workers may underperform in their jobs, resulting in lower-quality care, more clinical errors, and early departure from the profession. Results of this study suggest that military health care workers who have productive beliefs about self-care are more likely to practise self-care, which can protect them from experiencing negative side effects related to their work, such as burnout. Leaders who promote effective self-care practices can also help reduce such negative side effects. Therefore, interventions that target individual self-care attitudes and health-promoting leadership can be designed to support a productive self-care mindset and a professional climate that optimizes health care worker well-being in a military setting.
U.S. Program on Materials Technology for Ultrasupercritical Coal-Fired Boilers
Authors: Viswanathan R. , Purgert R. , Goodstine S. , Tanzosh J. , Stanko G. , Adam J.P. , Stanko B. 
Published: February 2025

Abstract
One of the pathways for achieving the goal of utilizing the available large quantities of indigenous coal, at the same time reducing emissions, is by increasing the efficiency of power plants by utilizing much higher steam conditions. The US Ultra-Supercritical Steam (USC) Project funded by US Department of Energy (DOE) and the Ohio Coal Development Office (OCDO) promises to increase the efficiency of pulverized coal-fired power plants by as much as nine percentage points, with an associated reduction of CO2 emissions by about 22% compared to current subcritical steam power plants, by increasing the operating temperature and pressure to 760°C (1400°F) and 35 MPa (5000 psi), respectively. Preliminary analysis has shown such a plant to be economically viable. The current project primarily focuses on developing the materials technology needed to achieve these conditions in the boiler. The scope of the materials evaluation includes mechanical properties, steam-side oxidation and fireside corrosion studies, weldability and fabricability evaluations, and review of applicable design codes and standards. These evaluations are nearly completed, and have provided the confidence that currently-available materials can meet the challenge. While this paper deals with boiler materials, parallel work on turbine materials is also in progress. These results are not presented here in the interest of brevity.
Feasibility of MARBN Steel for Application to Thick Section Boiler Components in USC Power Plant at 650 °C
Authors: Abe F. , Tabuchi M. , Semba H. , Igarashi M. , Yoshizawa M. , Komai N. , Fujita A. 
Published: February 2025

Abstract
A 9Cr-3W-3Co-VNbBN steel, designated MARBN (MARtensitic 9Cr steel strengthened by Boron and Nitrides), has been alloy-designed and subjected to long-term creep and oxidation tests for application to thick section boiler components in USC power plant at 650oC. The stabilization of lath martensitic microstructure in the vicinity of prior austenite grain boundaries (PAGBs) is essential for the improvement of long-term creep strength. This can be achieved by the combined addition of 140ppm boron and 80ppm nitrogen without any formation of boron nitrides during normalizing at high temperature. The addition of small amount of boron reduces the rate of Ostwald ripening of M23C6 carbides in the vicinity of PAGBs during creep, resulting in stabilization of martensitic microstructure. The stabilization of martensitic microstructure retards the onset of acceleration creep, resulting in a decrease in minimum creep rate and an increase in creep life. The addition of small amount of nitrogen causes the precipitation of fine MX, which further decreases the creep rates in the transient region. The addition of boron also suppresses the Type IV creep-fracture in welded joints by suppressing grain refinement in heat affected zone. The formation of protective Cr2O3 scale is achieved on the surface of 9Cr steel by several methods, such as pre-oxidation treatment in Ar gas, Cr shot-peening and coating of thin layer of Ni-Cr alloy, which significantly improves the oxidation resistance of 9Cr steel in steam at 650oC. Production of a large diameter and thick section pipe and also fabrication of welds of the pipe have successfully been performed from a 3 ton ingot of MARBN.
Materials Solutions for Advanced Steam Power Plants
Authors: Klarstrom D. L. , Pike L. M. 
Published: February 2025

Abstract
Significant research efforts are underway in Europe, Japan, and the U.S. to develop the technology to increase the steam temperature in fossil power plants in order to achieve greater efficiency and reduce the amount of greenhouse gases emitted. The realization of these advanced steam power plants will require the use of nickel-based superalloys having the required combination of high-temperature creep strength, oxidation resistance, thermal fatigue resistance, thermal stability, and fabricability. Haynes 230 and 282 alloys are two materials that meet all of these criteria. The metallurgical characteristics of each alloy are described in detail, and the relevant high-temperature properties are presented and discussed in terms of potential use in advanced steam power plants.
Alloy 33: Update on Field Experience in Water Walls and Superheaters
Authors: Paul Larry 
Published: February 2025

Abstract
Alloy 33 is a weld overlay material that has generated a lot of interest in the fossil boiler industry. The high chromium content of Alloy 33 has been shown to provide excellent corrosion protection in both waterwall and superheater/reheater tube applications. For waterwall applications, the corrosion resistance has been demonstrated in both laboratory and field tests conducted over the last 5 years. In addition to corrosion resistance, the Alloy 33 has also shown that it is also resistant to cracking (although no material is 100% immune). In the superheater/reheater, the use of spiral clad weld overlay tubes is able to provide resistance to excellent coal ash corrosion. Laboratory and field tests have shown Alloy 33 to have among the best corrosion resistance of all materials studied. The application of Alloy 33 is also easier than other more highly alloyed materials (such as FM-72) and is less expensive. As a result of these favorable experiences, Alloy 33 is now being used commercially to weld overlay both waterwall and superheater/reheater tubes on fossil boilers.
The Application of Ni-Base Alloy Nimonic 80A for Buckets of USC Steam Turbine in China
Authors: Shen Hongwei , Wang Weili , Wang Zhizheng , Zhang Lihong , Xie Xishan , Fu Shuhong 
Published: February 2025

Abstract
Nimonic 80A, a Ni-base superalloy mainly strengthened by Al and Ti to form γ'-Ni3 (Al, Ti) precipitation in Ni-Cr solid solution strengthened austenite matrix, has been used in different industries for more than half century (especially for aero-engine application). In consideration of high strengths and corrosion resistance both Shanghai Turbine Company (STC) has adopted Nimonic 80A as bucket material for ultra-super-critical (USC) turbines with the steam parameters of 600°C, 25MPa. First series of two 1000MW USC steam turbines made by Shanghai Turbine Co. were already put in service on the end of 2006. Large amount of Nimonic 80A with different sizes are produced in Special Steel Branch of BAOSTEEL, Shanghai. Vacuum induction melting and Ar protected atmosphere electro-slag remelting (VIM+PESR) process has been selected for premium quality high strength Nimonic 80A. For higher mechanical properties the alloying element adjustment, optimization of hot deformation and heat treatment followed by detail structure characterization have been done in this paper. The Chinese premium quality high strength Nimonic 80A can fully fulfill the USC turbine bucket requirements.
Mechanical Properties and Manufacturability of Ni-Fe Base Superalloy (FENIX-700) for A-USC Steam Turbine Rotor Large Forgings
Authors: Imano Shinya , Sato Jun , Kajikawa Koji , Takahashi Tatsuya 
Published: February 2025

Abstract
To develop 10-ton class forgings with adequate long-term strength and without segregation defects for A-USC steam turbine rotors, researchers modified the chemical composition of Alloy 706 to improve its microstructure stability and segregation properties. The modified Alloy, named FENIX-700, is a γ' phase strengthened alloy without a γ" phase, and its microstructure stability is superior to Alloy 706 at 700°C, as demonstrated by short-term aging tests and phase stability calculations using the CALPHAD method. A trial disk 1-ton class forging of FENIX-700 was manufactured from a double-melted ingot, with tensile and creep strength of the forging equivalent to that of 10-kg class forgings, indicating a successful trial. Long-duration creep tests were performed using 10-kg class forgings, revealing an approximate 105-hour creep strength at 700°C higher than 100 MPa. Manufacturability tests showed that FENIX-700 performs better than Alloy 706, as evidenced by segregation tests using a horizontal directional solidification furnace and hot workability tests. Microstructure observation and tensile tests on 10,000-hour aged specimens (at temperatures of 650, 700, and 750°C) revealed degradation of tensile strength and yield stress due to coarsening of the γ' phase, but also showed enhanced ductility through aging. The microstructure stability of FENIX-700 at 700°C was confirmed as excellent through microstructure observation of the 10,000-hour aged sample and supporting thermodynamic considerations.
Creep Strength of High Cr Ferritic Steels Designed Using Neural Networks and Phase Stability Calculations
Authors: Masuyama F. , Bhadeshia H.K.D.H. 
Published: February 2025

Abstract
The highest creep rupture strength of recent 9-12% Cr steels which have seen practical application is about 130 MPa at 600°C and 100,000 h. While the 630°C goal may be realized, much more work is needed to achieve steam temperatures up to 650°C. Conventional alloy development techniques can be slow and it is possible that mathematical models can define the most economical path forward, perhaps leading to novel ideas. A combination of mechanical property models based on neural networks, and phase stability calculations relying on thermodynamics, has been used to propose new alloys, and the predictions from this work were published some time ago. In the present work we present results showing how the proposed alloys have performed in practice, considering long term creep data and microstructural observations. Comparisons are also made with existing enhanced ferritic steels such as Grade 92 and other advanced 9-12%Cr steels recently reported.
The Role of Creep-Fatigue in Advanced Materials
Authors: Parker J. , Gandy D. 
Published: February 2025

Abstract
A comprehensive EPRI initiative launched in 2006 has addressed the critical need to better understand creep-fatigue interactions in power plants experiencing cyclic operation. This international collaboration of industry experts has focused on evaluating current test methods, analyzing crack initiation and growth methodologies, examining life prediction approaches for various applications, identifying deficiencies in creep-fatigue damage assessment, and determining future research requirements. This paper presents key findings from the project, with particular attention to the performance of creep-strengthened ferritic steels, specifically Grade 91 and 92 steels, providing essential insights for power plants facing increasingly demanding operational conditions.
A Design Perspective of Elevated Temperature Material Behavior
Authors: Jetter Robert 
Published: February 2025

Abstract
The purpose of this paper is to discuss elevated temperature materials behavior from the perspective of the component designer/stress analyst and the developer of elevated temperature design rules and criteria. Some issues associated with the design and structural integrity evaluation process are discussed including application of criteria supporting elevated temperature design of nuclear components to non-nuclear power and petrochemical components, particularly those subjected to significant cyclic service. The fundamental problem is how to relate specimen data gathered over limited time, loading conditions and geometry to complex structures subject to intermixed long and short term variable loading. Finally, a path forward is suggested for the development of elevated temperature design criteria for power and petrochemical plant components operated in cyclic service in thec.