Article
Computer Science, Interdisciplinary Applications
Ikechukwu Kalu, Christopher E. Ndehedehe, Onuwa Okwuashi, Aniekan E. Eyoh
Summary: Advanced satellite geodetic systems have improved knowledge on global gravity field changes. The study introduced the RCR technique for modeling a gravimetric geoid model in a data-deficient region in West Africa and compared the results of different datasets. The RCR-determined geoid model showed strong correlation with observed terrestrial data.
EARTH SCIENCE INFORMATICS
(2022)
Article
Geochemistry & Geophysics
Osama Elghrabawy
Summary: This study presents a strategy to enhance the short wavelengths of airborne gravity signal using remove-compute-restore (RCR) scheme and downward continuation (DWC) technique with fast Fourier transform (FFT). The results show that removing and substituting the terrain signal significantly improves the resolution of the airborne gravity signal.
GEOPHYSICAL JOURNAL INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Zhanglin Li
Summary: This paper presents a novel interpolation approach (DIDW) that integrates data-to-data correlation with the conventional IDW to address the issue of unfavorable results in the presence of clustered data. Experimental results demonstrate that DIDW with locally varying exponents outperforms traditional IDW and ordinary kriging in terms of stability and accuracy.
SCIENTIFIC REPORTS
(2021)
Article
Physics, Fluids & Plasmas
H. Yoo, G. Wissocq, J. Jacob, J. Favier, P. Sagaut
Summary: This study combines the compressible lattice Boltzmann model with rotating overset grids to tackle the challenges of high Mach flow. It proposes using a compressible hybrid recursive regularized collision model with fictitious forces and investigates polynomial interpolations. The method effectively couples with the MUSCL-Hancock scheme in the rotating grid and maintains second-order accuracy, showing good agreement with experiments and the conventional finite-volume scheme on aerodynamic coefficients.
Article
Energy & Fuels
Balazs Cako, Erzsebet Szerena Zoltan, Janos Giran, Gabriella Medvegy, Maria Eordoghne Miklos, Arpad Nyers, Anett Timea Grozdics, Zsolt Kisander, Viktor Bagdan, Agnes Borsos
Summary: This paper presents an empirical approach to design ideal workplaces using the PMV-PPD method, focusing on improving overall employee satisfaction. To support desk sharing, a comfort map toolkit was designed to visualize the distribution of comfort parameters within office spaces.
Article
Multidisciplinary Sciences
Mengdi Xing, Guorong Gao
Summary: This paper proposes an efficient method to remove mixed Gaussian and Random-valued impulse noise (RVIN) by improving the detecting then filtering strategy and introducing the idea of inpainting. The proposed algorithm consists of noise classification and noise removal phases, and outperforms the state-of-the-art methods in terms of denoising performance and computational time.
Article
Chemistry, Physical
Claudio Amovilli, Franca Maria Floris
Summary: This paper presents a method for calculating the solute-solvent dispersion contribution to the electronic excitation energy in solution and extends the method to excited states. Utilizing variational quantum Monte Carlo and Casimir-Polder integration, it concludes that the solute-solvent interaction stabilizes the excited state of the solutes.
JOURNAL OF CHEMICAL THEORY AND COMPUTATION
(2022)
Article
Engineering, Multidisciplinary
Francesco A. B. Silva, Stefano Lorenzi, Antonio Cammi
Summary: This article presents two extensions of the empirical interpolation method (EIM) designed to deal with vector interpolation problems: EIM-roto and EIM-orto. Testing on a benchmark case shows that EIM-roto interpolation allows reconstruction performances close to the POD ones, while EIM-orto interpolation does not provide reliable reconstructions.
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
(2021)
Article
Mathematics
Hunter Johnston, Martin W. Lo, Daniele Mortari
Summary: In this paper, a method to solve for periodic orbits using the Theory of Functional Connections (TFC) is developed. By embedding the periodic constraint analytically into the TFC constrained expression, the system of differential equations governing the three-body problem is transformed into an unconstrained optimization problem, allowing for simpler numerical implementation with comparable accuracy and speed to traditional methods.
Article
Geosciences, Multidisciplinary
Walter D. Mooney, Carol Barrera-Lopez, Maria Gabriela Suarez, Miguel A. Castelblanco
Summary: The Earth Crustal Model 1 (ECM1) is a global crustal model that provides information on the crust's thickness, seismic velocities, and density. It incorporates new sediment thickness compilations, an expanded seismic measurement database, field measurements for S-wave velocity, and a digital map of crustal types. The model calculates the Vp, Vs, Vp/Vs, and density at regular intervals for continents and oceans, allowing for the calculation of surface area, volume, and mass for each crustal type and the entire Earth's crust.
EARTH-SCIENCE REVIEWS
(2023)
Article
Materials Science, Ceramics
Pengcheng Cai, Jun Luan, Jiaheng Liu, Chao Li, Zhigang Yu, Jieyu Zhang, Kuochih Chou
Summary: In this paper, the modified Kriging interpolation method with oxide property weights is introduced for viscosity prediction of multicomponent slags. The predicted errors by this method are smaller than those by empirical models. It is anticipated that this method can be extended to predicting the continuous physicochemical properties of multicomponent slags.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Kira Lewis, Takeshi Matsuura
Summary: This paper extends a previous study by demonstrating the applicability of the method for predicting meniscus shape in different scenarios, such as on a tilted plate, between two plates, and for a sessile drop. The proposed Bezier curve method simplifies the computation process compared to previous approaches and can be applied to solve other differential equations. The study also found that a higher degree Bezier curve is required for predicting the shape of a sessile drop compared to other scenarios.
Article
Mathematics
Rolando Quintero, Miguel Torres-Ruiz, Magdalena Saldana-Perez, Carlos Guzman Sanchez-Mejorada, Felix Mata-Rivera
Summary: This research uses conceptual distance to measure information content in Wikipedia categories. The proposed metric, generality, calculates the ratio of information provided by a concept to others compared to the information it receives. The findings show that this method produces comparable results to current methods using the WordNet corpus and can be applied to measure information content in any relationship or topology.
Article
Computer Science, Software Engineering
Yin Chen, Chuangyin Dang
Summary: This paper introduces a differentiable homotopy method for computing perfect equilibria of normal-form games, establishing a smooth path to a perfect equilibrium by constructing an artificial game and continuously differentiable function. Numerical results show that this method is numerically stable and efficient, outperforming the simplicial homotopy method especially for large-scale problems.
MATHEMATICAL PROGRAMMING
(2021)
Article
Multidisciplinary Sciences
Luozheng Li, DaHui Wang
Summary: The study proposes a computational model consisting of 'confidence neurons' with adaptation to assess decision confidence. Simulated activities capture typical features of confidence observed in experiments. Confidence can be formed online alongside decision formation, with adaptation properties used to monitor confidence formation during decision-making.
SCIENTIFIC REPORTS
(2021)
Article
Geochemistry & Geophysics
Magdala Tesauro, Mikhail K. Kaban, Alan R. A. Aitken
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2020)
Article
Geochemistry & Geophysics
Sierd Cloetingh, Alexander Koptev, Istvan Kovacs, Taras Gerya, Anouk Beniest, Ernst Willingshofer, Todd A. Ehlers, Nevena Andric-Tomasevic, Svetlana Botsyun, Paul R. Eizenhoefer, Thomas Francois, Fred Beekman
Summary: Research has shown that subduction within oceans triggered by upwelling mantle plumes may play a significant role in plate tectonics on early and modern Earth, while the initiation of subduction within continents is still underappreciated. Numerical models indicate that incipient downthrusting within thick continental plates can be triggered by moderate temperature mantle plumes without significant weakening of overlying rocks, contrasting with requirements for subduction initiation in oceanic or thinner continental lithosphere.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2021)
Article
Geochemistry & Geophysics
N. -P. Finger, M. K. Kaban, M. Tesauro, C. Haeger, W. D. Mooney, M. Thomas
Summary: New seismic data on the crust and upper mantle of South America, combined with gravity data and mineral physics constraints, have been used to develop self-consistent models of the temperature, composition, and density of the lithospheric and sub-lithospheric upper mantle of South America. The results reveal deep cratonic roots under wide parts of certain cratons in South America, suggesting past tectonic events and possible mantle upwelling influencing the geology of the region.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2021)
Article
Geochemistry & Geophysics
Guangdong Zhao, Jianxin Liu, Bo Chen, Mikhail K. Kaban, Jinsong Du
Summary: The study focuses on the density structure beneath lunar mascon basins, proposing an efficient forward gravity method and demonstrating significant mantle uplift and thinned crust in these regions through 3-D inversion of gravity data. The density model is consistent with the formation processes of mascons, indicating thick, low-density crust and extensive fracturing of the crustal column.
JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
(2021)
Article
Geosciences, Multidisciplinary
Mikhail K. Kaban, Damien Delvaux, Francesca Maddaloni, Magdala Tesauro, Carla Braitenberg, Alexey G. Petrunin, Sami El Khrepy
Summary: The Congo Basin, one of the largest intracratonic basins in the world, has its sedimentary layer structure investigated through the inversion of decompensative gravity anomalies. The calculated decompensative correction reveals sediment thickness and deep basin features throughout the basin, highlighting areas not covered by seismic studies.
JOURNAL OF AFRICAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
A. Auzemery, E. Willingshofer, P. Yamato, T. Duretz, F. Beekman
Summary: Numerical modelling was used to investigate the shortening of an oceanic basin and adjacent continental margins, revealing that subduction initiation is favored at passive margins with thermally thin continental lithospheres and young oceanic basins. Slow convergence rates were found to strengthen mid-oceanic ridges and lead to subduction initiation at passive margins.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geochemistry & Geophysics
N. -P. Finger, M. K. Kaban, M. Tesauro, W. D. Mooney, M. Thomas
Summary: This study combines S-wave seismic tomography with high-resolution satellite gravity data to investigate the structure of the cratonic lithosphere of Africa. The results show variations in lithospheric thickness, temperature, and depletion across different regions of Africa.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geochemistry & Geophysics
Carol Barrera-Lopez, Walter D. Mooney, Mikhail K. Kaban
Summary: The controversial Caribbean plate is an enclosed oceanic basin. It is mainly composed of the Caribbean Large Igneous Province (CLIP) and contains large areas of normal-thickness oceanic crust. Contrary to expectations, the plate's subduction can be traced to a depth of 600 km beneath NW South America, indicating that a significant portion of the plate consists of normal-thickness oceanic crust. This suggests that the Caribbean plate likely migrated eastward from the Pacific Ocean with mostly normal-thickness crust.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geochemistry & Geophysics
C. Haeger, A. G. Petrunin, M. K. Kaban
Summary: High-quality maps of Geothermal heat flow are crucial for modeling ice dynamics and mass loss of the Antarctic Ice Sheet. Determining Geothermal heat flow is challenging, and we have developed a new method to estimate it and created a new map. The map shows the correlation between surface heat flow and subglacial volcanism.
GEOCHEMISTRY GEOPHYSICS GEOSYSTEMS
(2022)
Article
Geochemistry & Geophysics
Peter Haas, R. Dietmar Mueller, Jorg Ebbing, Nils-Peter Finger, Mikhail K. Kaban, Christian Heine
Summary: The lithospheric architecture of passive margins is crucial for understanding the tectonic processes that caused the breakup of Gondwana. This study explores the evolution of the South Atlantic passive margins using a simple thermal lithosphere-asthenosphere boundary (LAB) model and reveals distinct variations and different rifting mechanisms along the margins.
Article
Geochemistry & Geophysics
Mikhail K. Kaban, Roman Sidorov, Anatoly A. Soloviev, Alexei D. Gvishiani, Alexei G. Petrunin, Oleg Petrov, Sergey N. Kashubin, Evgeniy A. Androsov, Evgenia D. Milshtein
Summary: A new Moho map for the north-eastern part of Eurasia, which has remained largely unexplored by seismic methods, is presented in this study. The map is based on the analysis of various data sets and demonstrates significant improvements over previous maps. It provides valuable insights into the crustal thickness and tectonic features of the study area.
PURE AND APPLIED GEOPHYSICS
(2022)
Article
Geochemistry & Geophysics
Roman Sidorov, Mikhail K. Kaban, Anatoly A. Soloviev, Alexei G. Petrunin, Alexei D. Gvishiani, Alexei A. Oshchenko, Anton B. Popov, Roman Krasnoperov
Summary: The present study analyzed the structure of sedimentary basins in the eastern Asia Arctic zone using the approach based on decompensative gravity anomalies. Two models were obtained to provide information on sediment thickness and density in the study area, revealing new details on basin structure, shape, and density. Significant changes in sediment thickness and depo-centre location were found in several basins, with the new model aligning well with seismic data and providing insights for future studies in the region.