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SN 2023ixf in M101: Physical Parameters from Bolometric Light Curve Modeling

József Vinkó, Zsófia Réka Bodola, Ákos Gődény, Szelina Fruzsina Csák et al. • The Astrophysical Journal (2025)

We present new photometric observations of the core-collapse supernova SN 2023ixf occurred in M101, taken with the RC 80 and BRC80 robotic telescopes in Hungary. The initial nickel mass from the late-phase bolometric light curve extending u...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/ae0614

Machine learning-based dynamic risk measurement for white sugar futures under geopolitical risks

Zihao Qiu, Siyu Chen, Zixin Feng, Ruitong Luo et al. • Frontiers in Physics (2025)

Futures, as significant financial derivatives, play a crucial role in financial markets by fulfilling price discovery functions and providing efficient risk hedging tools. Against the backdrop of geopolitical conflicts, market risk emerges ...

DOAJ Open Access (DOAJ) DOI: 10.3389/fphy.2025.1674717

Conceptual System Dynamics and Agent-Based Modelling Simulation of Interorganisational Fairness in Food Value Chains: Research Agenda and Case Studies

Seán McGarraghy, Gudrun Olafsdottir, Rossen Kazakov, Élise Huber et al. • Agriculture (2022)

System dynamics and agent-based simulation modelling approaches have a potential as tools to evaluate the impact of policy related decision making in food value chains. The context is that a food value chain involves flows of multiple produ...

DOAJ Open Access (DOAJ) DOI: 10.3390/agriculture12020280

Integrating sensor data and GAN-based models to optimize medical university distribution: a data-driven approach for sustainable regional growth in Saudi Arabia

Abdullah Addas, Abdullah Addas, Muhammad Nasir Khan, Muhammad Tahir et al. • Frontiers in Education (2025)

IntroductionThe regional disparity in higher education access can only be met when there are strategies for sustainable development and diversification of the economy, as envisioned in Saudi Vision 2030. Currently, 70% of universities are c...

DOAJ Open Access (DOAJ) DOI: 10.3389/feduc.2025.1527337

A Simplified Settlement Calculation Method for Stiffened Deep Cement Mixing Pile Composite Foundation Under Embankment

Jian-lin Yu, Lin Hu-wen, Yang Xue-lin, Zhou Jia-jin et al. • Geofluids (2026)

The stiffened deep cement mixing (SDCM) pile utilizes the advantages of the concrete pile and DCM column, and it has been widely used in construction and transportation projects. Nevertheless, the research on the theory of settlement analys...

DOAJ Open Access (DOAJ) DOI: 10.1155/gfl/6690426

Separate DOD and DOA Estimation for Bistatic MIMO Radar

Lin Li, Fangfang Chen, Jisheng Dai • International Journal of Antennas and Propagation (2016)

A novel MUSIC-type algorithm is derived in this paper for the direction of departure (DOD) and direction of arrival (DOA) estimation in a bistatic MIMO radar. Through rearranging the received signal matrix, we illustrate that the DOD and th...

DOAJ Open Access (DOAJ) DOI: 10.1155/2016/9170403

Spatiotemporal Speed Planning for Multi-Vehicle Cooperative Driving With Dynamic Following Relationships

Liuda Yi, Liguo Zang, Haiyan Sun, Yuxing Bai et al. • IEEE Open Journal of Intelligent Transportation Systems (2026)

In Autonomous Valet Parking scenarios, multiple vehicles operate cooperatively in low-speed environments where the leading-vehicle constraint may be dynamically reconstructed due to path transitions. Under such conditions, conventional spee...

DOAJ Open Access (DOAJ) DOI: 10.1109/OJITS.2026.3747268

Numerical investigation of corroded middle‐high strength pipeline subjected to combined internal pressure and axial compressive loading

Linlin Lu, Lecai Liang • Energy Science & Engineering (2021)

Abstract Buried oil and gas pipelines may face the threat of geological disasters such as landslides, faults, and floods. However, long‐term buried oil and gas pipelines often have corrosion defects, which bring greater challenges to the sa...

DOAJ Open Access (DOAJ) DOI: 10.1002/ese3.830

Machine Learning–Based Prediction of Organic Solar Cell Performance Using Molecular Descriptors

Mohammed Saleh Alshaikh • International Journal of Emerging Research in Engineering, Science, and Management (2025)

The performance of Organic Solar Cells (OSCs) is intrinsically linked to the molecular, electronic, and structural properties of donor and acceptor materials. This study employs various machine learning techniques, namely the Generalized Re...

DOAJ Open Access (DOAJ) DOI: 10.58482/ijeresm.v4i4.4

Transportation Engineering Instructional Practices

David Hurwitz, Kristen L. Sanford Bernhardt, Rod E. Turochy, Rhonda Kae Young • Transportation Research Record Journal of the Transportation Research Board (2015)

Instructional practices in transportation engineering education are evolving, and only some of these changes have been documented in the literature. This paper provides a systematic review of journal articles and refereed conference papers ...

OPENALEX DOI: https://doi.org/10.3141/2480-06

The Effect of Mutual Coupling on a High Altitude Platform Diversity System Using Compact Antenna Arrays

Tommy Hult, Abbas Mohammed • International Journal of Antennas and Propagation (2010)

We analyze the destructive effects of mutual coupling and spatial correlation between the separate antenna elements on a combined diversity system consisting of multiple HAPs (High-Altitude Platforms) employing various compact MIMO (Multipl...

DOAJ Open Access (DOAJ) DOI: 10.1155/2010/492915

Estimation for Two-Dimensional Nonsymmetric Coherently Distributed Source in L-Shaped Arrays

Tao Wu, Zhenghong Deng, Qingyue Gu, Jiwei Xu • International Journal of Antennas and Propagation (2018)

We explore the estimation of a two-dimensional (2D) nonsymmetric coherently distributed (CD) source using L-shaped arrays. Compared with a symmetric source, the modeling and estimation of a nonsymmetric source are more practical. A nonsymme...

DOAJ Open Access (DOAJ) DOI: 10.1155/2018/5247919

Non- Linear FE Modeling of Two-Way Reinforced Concrete Slab of NSC, HSC and LWC under Concentrated Load

Shatha S. Kareem, Shaimaa T. Sakin, Mohammad Z. Yousif • Journal of Engineering and Sustainable Development (2013)

This paper presents the numerical study to simulate the behavior six specimens of two-way RC slab of normal strength concrete (NSC), high strength concrete (HSC) and light weight concrete (LWC) with two steel ratio of 0.005 and 0.002 under ...

DOAJ Open Access (DOAJ)

Enhanced Satellite Monitoring of Dryland Vegetation Water Potential Through Multi‐Source Sensor Fusion

J. Du, J. S. Kimball, J. S. Guo, S. A. Kannenberg et al. • Geophysical Research Letters (2024)

Abstract Drylands are critical in regulating global carbon sequestration, but the resiliency of these semi‐arid shrub, grassland and forest systems is under threat from global warming and intensifying water stress. We used synergistic satel...

DOAJ Open Access (DOAJ) DOI: 10.1029/2024GL110385