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DEVELOPMENT AND ANALYSIS OF METHODS FOR SOLVING TYPICAL PROBLEMS OF RATIONAL DISTRIBUTION OF LIMITED RESOURCES

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DEVELOPMENT AND ANALYSIS OF METHODS FOR SOLVING TYPICAL PROBLEMS OF RATIONAL DISTRIBUTION OF LIMITED RESOURCES

L. G. Raskin et al · Odessa National Academy of Food Technologies · 2026 · ISSN 2312-3125

The object of research is the problem of rational distribution of limited resources between subsystems of a complex system that function independently. The relevance of the work is determined by the fundamental features ...

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EXPERIMENTAL VISUALIZATION AND NUMERICAL SIMULATION OF FRAUNHOFER DIFFRACTION FROM ORDERED AND DISORDERED OPAQUE MICROSTRUCTURES FOR EDUCATION PRACTICE: ЕКСПЕРИМЕНТАЛЬНА ВІЗУАЛІЗАЦІЯ ТА ЧИСЕЛЬНЕ МОДЕЛЮВАННЯ ДИФРАКЦІЇ ФРАУНГОФЕРА ВІД ВПОРЯДКОВАНИХ І НЕВПОРЯДКОВАНИХ НЕПРОЗОРИХ МІКРОСТРУКТУР ДЛЯ ОСВІТНЬОЇ ПРАКТИКИ

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Oleksii Voronkin et al · Sumy State Pedagogical University named after A.S. Makarenko · 2026 · ISSN 2413-1571

Formulation of the Problem. In teaching Fraunhofer diffraction, experimental approaches that clearly reveal the relationship between real-space structures and their Fourier-space representation remain limited in accessib...

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Comparative study towards the effect of different irrigation methods on old lands in Egypt

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Comparative study towards the effect of different irrigation methods on old lands in Egypt

Aya Anwar et al · Springer Nature · 2026 · ISSN 2357-0008

Abstract Given the escalating challenges of water scarcity and climate change, enhancing water productivity is crucial for achieving water security, particularly in arid regions with finite water resources. This study as...

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Time-Dilation Methods for Extreme Multiscale Timestepping Problems

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Time-Dilation Methods for Extreme Multiscale Timestepping Problems

Philip F. Hopkins et al · Maynooth Academic Publishing · 2026 · ISSN 2565-6120

Many astrophysical simulations involve extreme dynamic range of timescales around 'special points' in the domain (e.g. black holes, stars, planets, disks, galaxies, shocks, mixing interfaces), where processes on small sc...

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Identification of Coronal Mass Ejection–Driven Shocks Based on Numerical Simulation and Deep Learning

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Identification of Coronal Mass Ejection–Driven Shocks Based on Numerical Simulation and Deep Learning

Jing’en Li et al · IOP Publishing · 2026 · ISSN 1538-4357

Coronal mass ejections (CMEs) are eruptions originating from the solar corona, usually carrying a large amount of fast-flowing plasma into interplanetary space, accompanied by an enhanced magnetic field. CMEs can form sh...

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Research and numerical simulation on dynamic tensile instability evolution mechanism of coal under different impact velocities

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Research and numerical simulation on dynamic tensile instability evolution mechanism of coal under different impact velocities

ZHANG Tong et al · Emergency Management Press · 2026 · ISSN 2096-2193

Understanding the strain-damage-energy dissipation mechanisms and evolution characteristics of deep coal and rock under impact loading is of great significance for the prevention and control of rockbursts. In this study,...

LCC LCC:Engineering geology. Rock mechanics. Soil mechanics. Underground construction; TENDOk1pbmluZyBlbmdpbmVlcmluZy4gTWV0YIdioma eng

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Nemesis: A multi-scale, multi-physics algorithm for astrophysics

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Nemesis: A multi-scale, multi-physics algorithm for astrophysics

Hochart E. et al · EDP Sciences · 2026 · ISSN 0004-6361

Context. Astronomical environments are governed by a complex interplay of physical processes, including gravitational dynamics, radiative transfer, stellar evolution, chemistry, and hydrodynamics. These processes span a ...

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Constraining exotrojans in hot-Jupiter systems using transit timing variation observations from TESS

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Constraining exotrojans in hot-Jupiter systems using transit timing variation observations from TESS

Zhang Zixin et al · EDP Sciences · 2026 · ISSN 0004-6361

Context. Co-orbital objects, also known as Trojans, are celestial bodies that share a 1:1 mean motion resonance orbit with a planet. Many planets in our Solar System hold Trojans, yet none has been confirmed in exoplanet...

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Control of floor heave with rock bolts-steel piles coupling support technology

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Control of floor heave with rock bolts-steel piles coupling support technology

Ivan Sakhno et al · SpringerOpen · 2026 · ISSN 2095-8293

Abstract The uncontrolled floor heave in gob-side entry retaining is the serious problem of underground coal mining. This phenomenon has gravely restricted the application of pillarless mining that has been increasingly ...

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Application of the Newton–Raphson algorithm for enhanced harmonic reduction in seven-level packed U-cell multilevel inverters

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Application of the Newton–Raphson algorithm for enhanced harmonic reduction in seven-level packed U-cell multilevel inverters

O. A. Y. Amran et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X

Introduction. Recently, multilevel inverters (MLIs) have been widely investigated for industrial and renewable energy systems as they are valuable in applications where they can produce clean, high-fidelity electrical si...

LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng

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Continuation-Enhanced Harmonic Balance Method for Nonlinear Dynamics in Rotating Machinery

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Continuation-Enhanced Harmonic Balance Method for Nonlinear Dynamics in Rotating Machinery

Muhammad Umar et al · Wiley · 2026 · ISSN 1875-9203

Nonlinear response conception in rotating machinery, particularly in systems with squeeze film dampers (SFDs), pose significant challenges for established time-domain numerical methods due to bifurcations and critical po...

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A new stator flow-oriented control method based on type-2 fuzzy logic controllers for permanent magnet synchronous motors

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A new stator flow-oriented control method based on type-2 fuzzy logic controllers for permanent magnet synchronous motors

M. Tabbakh et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X

Introduction. Stator flow-oriented control is currently the most widely used system in industry or in previous research for improving the quality of mechanical power generated by permanent magnet synchronous motors (PMSM...

LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng

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Cluster analysis of participants’ self-reported emotional and organizational responses during a large-scale disaster simulation exercise at a level 1 trauma center

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Cluster analysis of participants’ self-reported emotional and organizational responses during a large-scale disaster simulation exercise at a level 1 trauma center

Myriam Lamamri et al · BMC · 2026 · ISSN 1865-1380

Abstract Background Hospital-based simulations are vital for disaster preparedness. Anxiety and other emotions may affect hospital staff by influencing non-technical skills. We investigated self-reported emotional and or...

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Comparative efficacy of vision-restricted vs. conventional cognitive-motor dual-task training for cognition improvement in type 2 diabetes: A randomized controlled trial

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Comparative efficacy of vision-restricted vs. conventional cognitive-motor dual-task training for cognition improvement in type 2 diabetes: A randomized controlled trial

Ramesh Chandra Patra et al · Elsevier · 2026 · ISSN 2773-157X

Background: Cognitive disorder is caused by hyperglycemia and insulin resistance in type 2 diabetes. Elevated glycemic levels contribute to neural damage and exacerbate cognitive decline, strict glucose control is requir...

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Comparison of different criteria for rheumatic heart disease screening: an empirical study in Sierra Leone

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Comparison of different criteria for rheumatic heart disease screening: an empirical study in Sierra Leone

Belén Fernández-de-Toro et al · BMC · 2026 · ISSN 1471-2261

Abstract Background Rheumatic heart disease (RHD) affects approximately 40 million people, primarily in low- and middle-income countries. Transthoracic echocardiography is the gold standard for early detection of RHD. Y...

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Determination of the transition resistance of detachable electrical contacts with Camital active grease

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Determination of the transition resistance of detachable electrical contacts with Camital active grease

V. V. Kozyrskyi et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X

Problem. The reliability of detachable electrical contact connections is significantly reduced due to an increase in transition electrical resistance caused by thermomechanical deformations, oxidation of contact surfaces...

LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng

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Effects of friction on the efficiency of open gradient magnetic separation in dry granular materials

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Effects of friction on the efficiency of open gradient magnetic separation in dry granular materials

O. Belguet et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X

Introduction. Magnetic separation is one of the most effective and widely used techniques for the purification and enrichment of materials. It plays a crucial role in mineral processing, recycling, and environmental appl...

LCC LCC:Electrical engineering. Electronics. Nuclear engineeringIdioma eng

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Effects of internet-based cognitive behavioral therapy on kinesiophobia, exercise adherence, and back muscle function after lumbar fusion surgery

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Effects of internet-based cognitive behavioral therapy on kinesiophobia, exercise adherence, and back muscle function after lumbar fusion surgery

Tingting Wang et al · BMC · 2026 · ISSN 1471-2474

Abstract Background To evaluate the efficacy of an Internet-based Cognitive Behavioral Therapy (ICBT) program in improving kinesiophobia, exercise adherence, pain intensity, lumbar function, and spinal alignment paramete...

LCC LCC:Diseases of the musculoskeletal systemIdioma eng

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Energy absorption enhancement in reinforced reentrant auxetic structures through primary to secondary strut interaction

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Energy absorption enhancement in reinforced reentrant auxetic structures through primary to secondary strut interaction

Asheesh Kumar Kesharwani et al · Springer · 2026 · ISSN 2731-6564

Abstract Re-entrant auxetic lattices exhibiting negative Poisson’s ratio behaviour are attractive for lightweight energy-absorbing applications. However, traditional re-entrant and hexagonal auxetic designs often exhib...

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Evaluation and research progress of CO2 sequestration in deep coal seams

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Evaluation and research progress of CO2 sequestration in deep coal seams

Yucan XIONG et al · Editorial Office of Coal Geology & Exploration · 2026 · ISSN 1001-1986

BackgroundWith increasing pressure for global carbon emission reduction, geologic CO2 sequestration has emerged as a critical technical approach to achieving the goals of peak carbon dioxide emissions and carbon neutrali...

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Formation of Temperature Distribution in a Regenerative Heat Exchanger During the Initial Cooling Period of a Cryogenic Reduction Unit of Main Natural Gas

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Formation of Temperature Distribution in a Regenerative Heat Exchanger During the Initial Cooling Period of a Cryogenic Reduction Unit of Main Natural Gas

Kravchenko Yu.A. et al · Academy of Sciences of Moldova · 2026 · ISSN 1857-0070

This article examines the startup period of a natural gas pipeline cryogenic reduction unit (CRU) within a gas distribution station (GDS). The objective of the study is to determine the temperature distribution within a ...

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Household-level surrounding greenspace as a nature-based intervention for health recovery after occupational injury

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Household-level surrounding greenspace as a nature-based intervention for health recovery after occupational injury

Doyun Song et al · Frontiers Media S.A · 2026 · ISSN 2296-2565

IntroductionUrban greening has been increasingly discussed as a component of health-supportive environments. While greenspace exposure has been associated with psychological restoration, limited evidence exists regarding...

LCC LCC:Public aspects of medicineIdioma eng

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Possibility of cooling the rotor of an electric traction motor by bidirectional air flows

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Possibility of cooling the rotor of an electric traction motor by bidirectional air flows

S. Shlyk et al · National Technical University "Kharkiv Polytechnic Institute" · 2026 · ISSN 2074-272X

Introduction. The performance reliability of electric vehicles (EVs) is an important factor in evaluating their suitability for widespread adoption. The reliability and lifespan of an EV depend on several critical factor...

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SOFTWARE IMPLEMENTATION OF ALGORITHMS FOR CALCULATING PEARSON, SPEARMAN AND KENDALL CORRELATIONS IN C#: ПРОГРАМНА РЕАЛІЗАЦІЯ НА МОВІ C# АЛГОРИТМІВ ОБЧИСЛЕННЯ КОРЕЛЯЦІЇ ПІРСОНА, СПІРМЕНА І КЕНДАЛЛА

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Vitalii Bazurin et al · Sumy State Pedagogical University named after A.S. Makarenko · 2026 · ISSN 2413-1571

Formulation of the problem. In scientific research in sociology, education, physics, chemistry and other sciences, methods of correlation analysis are used. Correlation coefficients are used to determine the existence of...

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