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Academic Articles & Research Papers
Showing 20 of 221 academic articles
Vasile Drăgan, Ivan Ganchev Ivanov, Ioan-Lucian Popa • Axioms
(2023)
In this paper, we solve a stochastic linear quadratic tracking problem. The controlled dynamical system is modeled by a system of linear Itô differential equations subject to jump Markov perturbations. We consider the case when there are tw...
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Open Access (DOAJ)
DOI: 10.3390/axioms12010076
Xiaoyi Zhang, Muhammad Usman, Ateeq ur Rehman Irshad, Mudassar Rashid et al. • ISPRS International Journal of Geo-Information
(2024)
While socioeconomic gradients in regional health inequalities are firmly established, the synergistic interactions between socioeconomic deprivation and climate vulnerability within convenient proximity and neighbourhood locations with heal...
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Open Access (DOAJ)
DOI: 10.3390/ijgi13090330
Zeeshan M, Han J, Rehman A, Ullah I et al. • Risk Management and Healthcare Policy
(2021)
Muhammad Zeeshan,1 Jiabin Han,1 Alam Rehman,2 Irfan Ullah,3 Fakhr E Alam Afridi4 1College of Business Administration, Liaoning Technical University, Xingcheng, Liaoning Province, 125105, People’s Republic of China; 2Faculty of Managem...
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Open Access (DOAJ)
Quang Hai Nguyen • Economies
(2021)
This study aims to determine tourism demand elasticities by income and prices of regions, as well as total international markets. It is deployed to a total of 10 major source markets and two separate regions, from Asia and intercontinental ...
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Open Access (DOAJ)
DOI: 10.3390/economies10010001
Laura-Selin Harding, Georg Fieg • Chemical Engineering Transactions
(2018)
The reactive dividing wall column (RDWC) is a highly integrated apparatus, which combines a reactive distillation and a dividing wall column in one single shell. Thus, high savings in investment as well as operational costs can be achieved ...
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Open Access (DOAJ)
DOI: 10.3303/CET1869098
Yan Zhao, Tingting Chen, Conghua Ji, Yuxin Shang et al. • Experimental Gerontology
(2026)
Background: Stroke is an independent risk factor for heart failure (HF), and they are both linked to systemic inflammation. The neutrophil-percentage-to-albumin ratio (NPAR) is a novel inflammation biomarker. However, it is unclear whether ...
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Open Access (DOAJ)
DOI: 10.1016/j.exger.2025.113010
D. Morrill, W. Hettel, D. Carlson, B. Shearer et al. • APL Photonics
(2025)
High-harmonic upconversion driven by a mid-infrared femtosecond laser can generate coherent soft x-ray beams in a tabletop-scale setup. Here, we report on a compact ytterbium-pumped optical parametric chirped pulse amplifier (OPCPA) laser s...
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Open Access (DOAJ)
DOI: 10.1063/5.0292771
Jiasheng Zhou, Haipeng Li, Ziqiang Yang, Zitao Zhang et al. • Carbon Trends
(2021)
Graphene quantum dots (GQDs) are nanosized fragments of graphene containing a bandgap caused by edge effects and quantum confinement. These features enable GQDs to have attractive photonics applications. During the preparation of graphene n...
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Open Access (DOAJ)
DOI: 10.1016/j.cartre.2021.100054
Andreas Bablich, Maurice Müller, Paul Kienitz, Rainer Bornemann et al. • Scientific Reports
(2022)
Abstract A large and growing number of applications benefit from simple, fast and highly sensitive 3D imaging sensors. The Focus-Induced Photoresponse (FIP) can achieve 3D sensing functionalities by simply evaluating the irradiance dependen...
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Open Access (DOAJ)
DOI: 10.1038/s41598-022-14330-7
Hui Liu, Bo Zhao, Linquan Huang • Entropy
(2019)
The paper proposes a lossless quantum image encryption scheme based on substitution tables (S-box) scrambling, mutation operation and general Arnold transform with keys. First, the key generator builds upon the foundation of SHA-256 hash wi...
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Open Access (DOAJ)
DOI: 10.3390/e21040343
Khiabani Mohsen Malekalketab, Ismail Wan Khairuzzaman Wan, Ahadmotlaghi Ehsan, Barmaky Akbar • Organizacijų Vadyba: Sisteminiai Tyrimai
(2026)
There is substantial evidence indicating a positive linear relationship among job satisfaction (JS), organisational commitment (OC), and organisational citizenship behaviour (OCB), with OC often serving as a mediating variable. The interact...
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Open Access (DOAJ)
DOI: 10.2478/mosr-2026-0006
Yu-Hua Zhang, Xin-Xin Li, Xiang-Hong Wang, Zhen-Feng Huang et al. • Advances in Materials Science and Engineering
(2017)
Residual stress has significant influence on the performance of mechanical components, and the nondestructive estimation of residual stress is always a difficult problem. This study applies the relative nonlinear coefficient of critical ref...
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Open Access (DOAJ)
DOI: 10.1155/2017/6274054
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 ...
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Open Access (DOAJ)
Baizan Tang, Wenchao Deng, Su Chen, Xiaojun Li et al. • Earthquake Research Advances
(2022)
Based on the the large shaking table test results on irregular section subway station structure in soft soil, an overall time-history numerical simulation is conducted to study the nonlinear dynamic interaction of the soil-irregular undergr...
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Open Access (DOAJ)
DOI: 10.1016/j.eqrea.2022.100168
Xuefeng Li, Zhigang Ma • Geomechanics and Geophysics for Geo-Energy and Geo-Resources
(2024)
Abstract The stress paths of the cylindrical specimen in the p–q stress space by controlling the ratio of the axial and the radial loading is guaranteed to be consistent with the cuboid specimen, a novel method for imitating true-triaxial s...
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Open Access (DOAJ)
DOI: 10.1007/s40948-024-00781-x
Harsha Gurram, Harsha Gurram, Jason R. Shuster, Li-Jen Chen et al. • Frontiers in Astronomy and Space Sciences
(2026)
The Kelvin–Helmholtz instability (KHI), in its nonlinear phase, plays a significant role in transporting solar-wind plasma into Earth’s magnetosphere. This study investigates the turbulence properties and reconnection signatures observed at...
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Open Access (DOAJ)
DOI: 10.3389/fspas.2026.1788081
Ivana Stiperski, Stefano Serafin, Alexandre Paci, Hálfdán Ágústsson et al. • Atmosphere
(2017)
In this article, we present an overview of the HyIV-CNRS-SecORo (Hydralab IV-CNRS-Secondary Orography and Rotors Experiments) laboratory experiments carried out in the CNRM (Centre National de Recherches Météorologiques) large stratified wa...
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Open Access (DOAJ)
DOI: 10.3390/atmos8010013
A. Posadas, L. A. Duffaut Espinosa, C. Yarlequé, M. Carbajal et al. • Nonlinear Processes in Geophysics
(2015)
Remotely sensed data are often used as proxies for indirect precipitation
measures over data-scarce and complex-terrain areas such as the Peruvian
Andes. Although this information might be appropriate for some research
requirements, the ext...
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Open Access (DOAJ)
DOI: 10.5194/npg-22-383-2015
Zhao Li, Weiping Jiang, Tonie van Dam, Xiaowei Zou et al. • Engineering
(2025)
Nonlinear variations in the coordinate time series of global navigation satellite system (GNSS) reference stations are strongly correlated with surface displacements caused by environmental loading effects, including atmospheric, hydrologic...
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Open Access (DOAJ)
DOI: 10.1016/j.eng.2024.09.001
Tatsuya Kaneko, Hidetaka Houtani, Ryota Wada, Tomoya Inoue • Applied Ocean Research
(2025)
Short-term phase-resolved ocean wave field prediction is desired for safe and efficient offshore operation. The dynamics of ocean waves are influenced by ambient currents, nonlinearity, and finite depth, which are difficult to characterize ...
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Open Access (DOAJ)
DOI: 10.1016/j.apor.2024.104358