bluuebunny/crossref_metadata_2025_split huggingface dataset:
تأثير رضا اتصالات التسويق الداخلي في تعزيز دوران العمل(دراسة لاراء عينة من العاملين في بعض متاحف بغداد)
Authors: هاله هادي صالح  , مثنى معان ابراهيم  
Published: October 2024

تهدف الدراسة الى معرفة طبيعة العلاقة بين رضا اتصالات التسويق الداخلي المتمثلة بأبعادها السبعة(مناخ الاتصالات والعلاقة مع الرؤساء والتكامل التنظيمي وجودة الوسائط والمنظور التنظيمي والتغذية العكسية الشخصية والعلاقة مع المرؤوسين) وتأثيره بدوران العمل إذ شخصت مشكلة الدراسة في الاجابة عن التساؤل الرئيسي: هل لرضا اتصالات التسويق الداخلي تأثير في دوران العمل؟ وتتضح اهمية الدراسة في أبراز دور رضا اتصالات التسويق الداخلي لدوران العمل وما ينتج عنه من ردود فعل ايجابية تظهر بسلوك العاملين واعتمدت الدراسة المنهج الوصفي الاستطلاعي والتحليلي واستخدمت الاستبانة كأداة رئيسة في جمع المعلومات و البيانات التى تتكون من (57) فقرة وجمعت البيانات عبر عينة مكونة من (171) عاملاً في المتحف الوطني والمتحف البغدادي ومتحف التاريخ الطبيعي داخل مدينة بغداد واعتمدت الدراسة برنامج(SPSS V29)وبرنامج(AMOS V29) وتم استخدام عدد من المقاييس والاساليب الاحصائية وكانت أهمها(الانحراف المعياري و(Z-TEST) ومعامل الارتباط بيرسون وتحليل الانحدار الخطي البسيط)وتوصلت الدراسة الى مجموعة استنتاجات اهمها أن الراتب الوظيفي لا يتناسب مع مؤهلات ومتطلبات الحياة للعاملين في المتحف، لذا فقرار اختيار العمل في المتحف لم يكن قرارا موفقاً والعاملون تراودهم باستمرار فكرة مغادرة العمل في المتحف.
Hubungan Dukungan Sosial Teman Sebaya Dengan Motivasi Belajar Pada Siswa SMA
Authors: Isrofi Warsita , Ghozali Rusyid Affandi  
Published: October 2024

Motivasi belajar merupakan salah satu komponen paling penting untuk menunjang kesuksesan belajar dari siswa sekaligus dapat memiliki pencapaian yang memuaskan. Tujuan penelitian ini untuk mengetahui hubungan dukungan sosial dengan motivasi belajar pada siswa SMA X Sidoarjo. Penelitian ini menggunakan pendekatan kuantitatif. Populasi dalam penelitian ini adalah siswa SMA X Sidoarjo dengan jumlah sebanyak 852 Siswa. Selanjutnya bedasarkan tabel Isaac Michael dengan taraf kesalahan 5% didapatkan jumlah sampel sebanyak 260 siswa menengah pertama melalui teknik stratified random sampling. Instrumen penelitian ini menggunakan skala psikologi dukungan sosial teman sebaya dan motivasi belajar. Skala berjenis likert dengan 4 alternatif jawaban yaitu sangat tidak setuju, tidak setuju, setuju, dan sangat setuju. Analisa data yang digunakan dalam penelitian ini adalah analisa pearson product moment correlation. Hasil analisis yang telah dilakukan menunjukkan bahwa terdapat hubungan positif yang signifikan antara dukungan sosial teman sebaya dan motivasi belajar (r = 0,141, p-value = 0,023). Penelitian ini mengimplikasikan pentingnya terciptanya lingkungan sosial yang baik bagi siswa, sehingga dukungan sosial antar siswa dapat terbentuk.
Kata kunci: dukungan sosial teman sebaya, motivasi belajar, siswa SMA
The Effect of Heat Flux on the Steam Oxidation Kinetics and Scale Morphology of Low Alloy Materials
Authors: Fry A. T. , Brown L. J. , Banks J. P. 
Published: October 2024

Abstract
The drive for increased efficiency and carbon reduction in next-generation boilers is pushing conventional materials to their limits in terms of strength and oxidation resistance. While traditional isothermal testing of simple coupons provides some insight into material performance, it fails to accurately represent the heat transfer conditions present in operational boilers. This paper introduces a novel test method designed to evaluate the degradation of candidate materials under more realistic heat flux conditions. The method, applied to tubular specimens using both laboratory air and steam as cooling media, demonstrates a significant impact of thermal gradients on material performance. Initial comparisons between tubular heat flux specimens and flat isothermal specimens of 15Mo3 revealed increased oxidation kinetics and altered oxide morphology under heat flux conditions. The paper details the design of this heat flux test, presents results from initial work on 15Mo3 under air and steam conditions, and includes findings from further studies on oxides formed on 2-1/4Cr material under both heat flux and isothermal conditions. This research represents a crucial step toward more accurate prediction of material behavior in next-generation boiler designs.
The Role of Boron in the Long-Term Stability of a CrMoCoB (FB2) Steel for a Rotor Component
Authors: Gianfrancesco A. Di , Cipolla L. , Paura M. , Vipraio S. Tiberi , Venditti D. , Neri S. , Calderini M. 
Published: October 2024

Abstract
Research conducted under European COST programs has demonstrated the beneficial role of boron in enhancing the microstructural stability and creep performance of new martensitic steels. The FB2 steel (a 10%Cr steel containing Co and B, without W) emerged as the most promising candidate and was successfully scaled up to a full industrial rotor component by Società delle Fucine. Extensive creep testing, now reaching 50,000 hours, indicates an improvement of 15-20 MPa over Grade 92 at 600°C for 100,000 hours. STEM and X-ray analysis of long-term aged specimens confirmed that boron significantly enhances precipitate stability compared to Grade 91 and 92 steels, validating its role as a creep-strengthening element and stabilizer of carbides and martensitic structure.
Alloy Design of Ni-Base Superalloys Aiming for Over 750°C Class A-USC Steam Power Plant
Authors: Sato Jun , Kamoshida Hironori , Imano Shinya , Omori Toshihiro , Ishida Kiyohito 
Published: October 2024

Abstract
A new Ni-base superalloy has been developed for Advanced Ultra Super Critical (A-USC) power plants operating above 750°C, targeting reduced CO2 emissions through improved efficiency. While existing research focuses on 700°C-class materials, this study presents a novel alloy design for higher-temperature applications. Using the CALPHAD method, a prototype alloy (Ni-23Co-18Cr-8W-4Al-0.1C) was developed by eliminating Ti, Nb, and Ta to improve hot-workability while maintaining strength. The resulting alloy demonstrates twice the creep strength of Nimonic 263, with an estimated 105 h steam turbine creep resistance temperature of 780°C, marking a significant advancement in A-USC material capabilities.
The Manufacture of Large, Complex Fossil Components Using Powder Metallurgy and HIP Technologies—A Feasibility Study
Authors: Gandy D. , Shingledecker J. , Lherbier L. 
Published: October 2024

Abstract
The manufacture of large, complex components for ultra-supercritical and oxy-combustion applications will be extremely costly for industry over the next few decades as many of these components will be manufactured from expensive, high strength, nickel-based alloys casting and forgings. The current feasibility study investigates the use of an alternative manufacturing method, powder metallurgy and hot isostatic processing (PM/HIP), to produce high quality, and potentially less expensive components for power generation applications. Benefits of the process include manufacture of components to near-net shapes, precise chemistry control, a homogeneous microstructure, increased material utilization, good weldability, and improved inspectability.
Development Status of Ni-Fe Base Superalloy for 700 °C Class A-USC Steam Turbine Rotor Application
Authors: Imano Shinya , Sato Jun , Kamoshida Hironori , Saito Eiji , Kajikawa Koji , Ohsaki Satoru , Takahashi Tatsuya 
Published: October 2024

Abstract
A modified version of Alloy 706, designated FENIX-700, was developed using the CALPHAD method to improve high-temperature stability above 700°C. The new alloy features reduced Nb and increased Al content, relying on γ' (Ni3Al) strengthening while eliminating γ'' (Ni3Nb), δ, and η phases. This modification improved both creep temperature capability (from 650°C to 700°C) and segregation properties. Successful manufacturing trials included a 760 mm² forging shaft using triple melt processing and a 1050 mm ESR ingot, demonstrating industrial viability. The study also explores compatible Ni-base welding materials for joining FENIX-700 to 12% Cr ferritic steel in 700°C class steam turbine applications.
Creep-Fatigue in Steam Turbine Materials
Authors: Holdsworth S. R. 
Published: October 2024

Abstract
The creep-fatigue properties of steam turbine materials such as the 1%CrMoV steel traditionally adopted for steam inlet temperatures up to ~565°C, the newer advanced 9-11%Cr steels for applications up to ~600°C, and the nickel based Alloy 617 for potential use to &gt;700°C are reviewed, in particular with reference to their cyclic/hold test crack initiation endurances. The results of cyclic/hold creep-fatigue tests are commonly employed to establish the damage summation diagrams used to form the basis of a number of creep-fatigue assessment procedures, and it is demonstrated that care should be exercised in the way such diagrams are interpreted to compare the creep-fatigue resistances of different alloy types. The form of such damage diagrams is dependent, not only on the analytical procedures used to define the respective fatigue and creep damage fractions, but also on both the deformation and damage interaction mechanisms displayed by the material.
Nondestructive Evaluation Methods of Microstructure in Power Plant Steel Grades
Authors: Meir S. , Liu S. , Mishra B. , Olson D.L. , Lasseigne A.N. , Coleman K. , Hellner R. 
Published: October 2024

Abstract
Critical sections of steam plants and heat-recovery steam generators require materials with enhanced properties such as 9Cr-1Mo steel. Ensuring compliance with specifications for heat treatment, chemical composition, contamination limits, and joint design is crucial to prevent premature failures. This study describes the development of a user-friendly, multi-property nondestructive sensor arrangement to qualify heat-treated 9Cr-1Mo steel. Experimental results demonstrate that correlations between thermal heat treatment and electronic, magnetic, and elastic measurements can determine if T91 steel achieves the necessary microstructure and properties for service. Additionally, rejected parts can be assessed for microstructural issues causing unacceptable properties. The techniques utilize a common electronic setup with different sensors, requiring calibration for specific NDE systems and sensor setups, high-speed data acquisition, and frequency analysis (FFT). Further development on crept and welded samples is recommended to enhance NDE practices for in-service T91 steel conditions.
Creep-Rupture Property Assessment for 9-12% Cr Ferritic Heat-Resistant Steels
Authors: Peng Z. F. , Dang Y. Y. , Peng F. F. 
Published: October 2024

Abstract
A new methodology challenges the conventional use of a constant C-value in the Larson-Miller Parameter (LMP) for 9-12% Cr ferritic steels, proposing instead a multi-C region analysis to address creep strength breakdown issues. Using NIMS data and other publications, the study demonstrates that C-values vary both between steel types and across stress regions. The new approach enables prediction of long-term (105 hours) creep rupture properties using only short-term (5×103 hours) test data, while d[g(σ)]/d[P(tr,T)] versus P(tr,T) analysis provides insight into property stability. This methodology offers a more cost-effective and accurate approach to acquiring and assessing long-term creep rupture data for these heat-resistant steels.
P(T)91 Steel-A Review of Current Code and Fabrication Practices
Authors: Goswami Pradip 
Published: October 2024

Abstract
Advanced chromium-molybdenum-vanadium steels 9CrMoV [P(T)91] have seen extensive global adoption across power, petrochemical, and other industrial sectors over the past decade, driven by the demand for materials with superior high-temperature properties to improve efficiency. Experience with P(T)91 base metals and weldments has revealed that these steels require substantially more attention than the commonly used P(T)22 grade and similar materials. This presentation examines Grade 91's various design code requirements across power, petroleum, and nuclear industries, focusing on fabrication and welding considerations. The discussion covers critical material properties and heat treatment parameters, including the significance of maintaining proper preheat and interpass temperatures, while highlighting the risks associated with interrupted heating cycles and improper postweld heat treatment. The paper also addresses factors influencing the use, development, and procurement of Modified Grade 91 welding consumables for heavy wall applications, and explores the subtle technical differences between North American and European approaches to production and utilization, ultimately emphasizing the considerable care required during joining processes to ensure acceptable long-term properties.
Performance of Al-Rich Oxidation Resistant Coatings for Fe-Base Alloys
Authors: Pint B. A. 
Published: October 2024

Abstract
Diffusion aluminide coatings have been evaluated as a strategy for improving the oxidation resistance of austenitic and ferritic-martensitic (FM) steels, particularly in the presence of steam or water vapor. The objective was to evaluate the strengths and weaknesses of these coatings and quantify their performance and lifetime. Long-term diffusion and oxidation experiments were conducted to study the behavior of various model diffusion coatings and produce a better data set for lifetime predictions. The key findings are that (1) thin coatings (&lt;50μm) with relatively low Al contents appear to be more effective because they avoid high thermal expansion intermetallic phases and have less strain energy to nucleate a crack; and (2) the low Al reservoir in a thin coating and the loss of Al due to interdiffusion are not problematic because the low service temperatures of FM steels (&lt;600°C) and, for austenitic steels at higher temperatures, the phase boundary between the ferritic coating-austenitic substrate inhibits Al interdiffusion. Unresolved issues center on the effect of the coating on the mechanical properties of the substrate including the reaction of N in the alloy with Al.
Nano-Structured Erosion Resistant Coatings for Gas and Steam Turbines
Authors: Swaminathan V.P. , Wei Ronghua , Gandy David W. 
Published: October 2024

Abstract
Solid particle erosion (SPE) and liquid droplet erosion (LDE) cause severe damage to turbine components and lead to premature failures, business loss and rapier costs to power plant owners and operators. Under a program funded by the Electric Power Research Institute (EPRI), nano­coatings are under development for application in steam and gas turbines to mitigate the adverse effects of PE and LPE on rotating blades and stationary vanes. Based on a thorough study of the available information, most promising coatings such as nano-structured titanium silicon carbo-nitride (TiSiCN), titanium nitride (TiN) and multilayered nano coatings were selected. TurboMet International (TurboMet) teamed with Southwest Research Institute (SwRI) with state-of-the-art nano-technology coating facilities with plasma enhanced magnetron sputtering (PEMS) method to apply these coatings on various substrates. Ti-6V-4Al, 12Cr, 17-4PH, and Custom 450 stainless steel substrates were selected based on the current alloys used in gas turbine compressors and steam turbine blades and vanes. Coatings with up to 30 micron thickness have been deposited on small test coupons. These are extremely hard coatings with good adhesion strength and optimum toughness. Tests conducted on coated coupons by solid particle erosion (SPE) and liquid droplet erosion (LDE) testing indicate that these coatings have excellent erosion resistance. The erosion resistance under both SPE and LDE test conditions showed the nano-structured coatings have high erosion resistance compared to other commercially produced erosion resistance coatings. Tension and high-cycle fatigue test results revealed that the hard nano-coatings do not have any adverse effects on these properties but may provide positive contribution.
Weldability of Inconel Alloy 740
Authors: Siefert J. A. , Tanzosh J. M. , Ramirez J. E. 
Published: October 2024

Abstract
Inconel alloy 740 is a precipitation-hardenable nickel-chromium-cobalt alloy with niobium, derived from Nimonic 263, and is considered a prime candidate for the demanding conditions of advanced ultrasupercritical boilers. It offers an exceptional combination of stress rupture strength and corrosion resistance under steam conditions of 760°C (1400°F) and 34.5 MPa (5000 psi), surpassing other candidate alloys. Initially, Inconel alloy 740 was prone to liquation cracking in sections thicker than 12.7 mm (0.50 in), but this issue has been resolved through modifications in the chemical composition of both the base and weld metals. Current concerns focus on the weld strength reduction factor for direct-age weldments. This has led to further development in welding Inconel alloy 740 using Haynes 282, which has higher creep strength and may mitigate the weld strength reduction factor. This study details successful efforts to eliminate liquation cracking and compares the properties of Inconel alloy 740 and Haynes 282 filler materials using the gas tungsten arc welding process.
A Practical Tutorial on ATE-Based Electrical Fault Isolation of Digital SoCs Using Photon Emission and Laser Voltage Imaging/Probing (2024 Update)
Authors: Endrinal Lesly 
Published: October 2024

Abstract
Presentation slides for the ISTFA 2024 Tutorial session “A Practical Tutorial on ATE-Based Electrical Fault Isolation of Digital SoCs Using Photon Emission and Laser Voltage Imaging/Probing (2024 Update).”
Intelligent filtering of field data
Authors: Ponomarev R. Y. , Leshchenko A. A. , Ziazev R. R. , Galiullin M. M. , Migmanov R. R. , Ivlev M. I. 
Published: October 2024

In the oil and gas industry, the measured parameters during oil and gas production are often affected by noise, which contributes to complex and non-monotonic dynamics. This makes manual analysis and interpretation extremely difficult. Therefore, this article aims to develop an algorithm capable of identifying and removing noise (signal changes without a clear cause) in the production parameters of well operation. The article examines data smoothing methods, including moving average, exponential smoothing, Kalman filter, Wiener filter, Savitzky-Golay filter, Fourier transform, and wavelet transform. The authors identified advantages and limitations. An alternative approach is proposed, combining machine learning methods with standard data filtering tools. The developed algorithm restores the true dynamics of well performance metrics and filters out and smooths noise related to technical malfunctions. The novelty of the algorithm lies in using an LSTM neural network to extract the trend component from noisy dynamics, taking into account events occurring at the well itself as well as events happening at surrounding wells.
Geological and geochemical aspects of modeling of hydrocarbon systems
Authors: Imamov R. R. 
Published: October 2024

Forecasting the phase-genetic types of hydrocarbons is the most important stage in modelling geological hydrocarbon systems. This is because accurate qualitative and quantitative assessment of potential reserves is necessary for making informed investment decisions in exploration activities. Improving the precision of qualitative and quantitative oil and gas forecast can help reduce geological risks in asset development and increase investment efficiency. Therefore, technologies that allow modelling of hydrocarbon systems are becoming ever more important. This study aims to explore the key geological and geochemical aspects of hydrocarbon system modelling. Hydrocarbon systems refer to interconnected elements and geological processes influencing hydrocarbon formation in sedimentary basins. The study emphasizes that the "oil window" concept, or the theory of hydrocarbon formation phases, provides the theoretical basis for hydrocarbon systems. This concept consistently encompasses the entire history of sedimentary basin development, the evolution of thermal and thermobaric regimes in sedimentary deposits, the transformation of organic matter, hydrocarbon generation, migration, accumulation, and preservation processes. Using the results of modelling of hydrocarbon systems to evaluate geological risks and the economic impact of exploration activities can be a powerful instrument for companies that make investment decisions in geological exploration.
Main spatial-temporal regularities of the state of the chemical composition of groundwater of the oligocene aquifer in the Shaim oil and gas bearing area
Authors: Rusakova Yu. O. , Plavnik A. G. , Vashurina M. V. , Kovjatkina L. A. , Hramcova A. L. , Sheshukov S. A. 
Published: October 2024

The constantly growing need for fresh water in the Shaim oil and gas region necessitates the exploration of new areas and the development of measures to improve the operation of water intakes. To predict the quality of groundwater, which is an operational parameter of the aquifer aquifer, it is needed up-to-date information on the chemical composition of ground-water. The aim of this study to identify main spatial-temporal regularities of the state of the chemical composition of groundwater of the oligocene aquifer in the Shaim oil and gas bearing area, compared to average values from adjacent areas. Research methods include the systematization of laboratory data on water samples, analysis of groundwater chemistry, and mapping of the main spatial-temporal patterns in component concentration changes. The average values of chemical composition indicators in the studied area are similar to those of neighbouring areas, with some indicators exceeding drinking water standards. Similarities are observed in the variability of the chemical composition, spatial patterns of changes in most chemical indicators, and the presence of areas with extreme values. Current data on the chemical composition of the oligocene aquifer ground-water, including key characteristics and spatial-temporal trends presented in distribution maps, can be used in designing groundwater intakes and forecasting long-term groundwater quality.
Problems of Military-Economic Cooperation Between the Central African Republic and the Russian Federation and Ways to Solve Them
Authors: Khromov Anatoliy O. 
Published: October 2024

The article analyzes the development of bilateral relations between the Central African Republic and the Russian Federation in the political, economic and military spheres. In modern conditions, the leadership of the Central African Republic considers the development of military and economic cooperation with the Russian Federation to be one of the main sources of resolving the internal conflict on the territory of the republic, as well as a necessary condition for ensuring the military security of the state, which, in a difficult time for the sovereignty and territorial integrity of the country, extended a helping hand to the Central African people.	At the same time, the colonial past of the Central African Republic in the form of France, which does not want to lose control over its resources, as well as the unprecedented political, economic and informational pressure of the collective West on the Russian Federation create significant problems in achieving the success of bilateral cooperation, which will require a lot of effort to solve. The author of the article suggests ways to solve existing problems.