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Journal articles on the topic 'Modeled by extended spheroid'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Ширяева, С.О., А.И. Григорьев та А.А. Ширяев. "О форме заряженной капли в электростатическом поле вытянутого сфероида, поддерживаемого при постоянном потенциале". Elektronnaya Obrabotka Materialov 53, № 5 (2017): 26–36. https://doi.org/10.5281/zenodo.1054033.

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In asymptotic calculations, the equilibrium form of a charged drop is found in a non-uniform electrostatic field created by an extended spheroid modeling a rod supported at a constant electric potential. It was found that the size of a small axis of a spheroid (rod thickness) creating a field considerably affects an equilibrium form of the charged drop. It is possible to describe the distortion of a spherical form of the surface of the charged conducting drop of ideal incompressible liquid in a non-uniform electrostatic field of a rod (with an accuracy bigger one percent of size) by the superp

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Costantin, Luca, Pablo G. Pérez-González, Jairo Méndez-Abreu, et al. "From Naked Spheroids to Disky Galaxies: How Do Massive Disk Galaxies Shape Their Morphology?" Astrophysical Journal 929, no. 2 (2022): 121. http://dx.doi.org/10.3847/1538-4357/ac5a57.

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Abstract We investigate the assembly history of massive disk galaxies and describe how they shape their morphology through cosmic time. Using SHARDS and HST data, we modeled the surface brightness distribution of 91 massive galaxies at redshift 0.14 < z ≤ 1 in the wavelength range 0.5–1.6 μm, deriving the uncontaminated spectral energy distributions of their bulges and disks separately. This spectrophotometric decomposition allows us to compare the stellar population properties of each component in individual galaxies. We find that the majority of massive galaxies (∼85%) build inside-out, g

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Bekki, Kenji, and Masashi Chiba. "Origin of Structural and Kinematic Properties of the Small Magellanic Cloud." Publications of the Astronomical Society of Australia 26, no. 1 (2009): 37–57. http://dx.doi.org/10.1071/as08020.

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AbstractWe investigate structural, kinematic and chemical properties of stars and gas in the Small Magellanic Cloud (SMC) interacting with the Large Magellanic Cloud (LMC) and the Galaxy based on a series of self-consistent chemodynamical simulations. We adopt a new ‘dwarf spheroidal model’ in which the SMC initially has both old stars with a spherical spatial distribution and an extended Hi gas disk. We mainly investigate the evolution of the SMC for the last ∼3 Gyr, during which the Magellanic Stream (MS) and the Magellanic Bridge (MB) could have formed as a result of the LMC–SMC–Galaxy inte

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Senel, Cem Berk, Robert Luther, Özgür Karatekin, Gareth S. Collins, Steven Goderis, and Philippe Claeys. "DART-scale Impacts into a Complex Low-strength Target: Insights into Asteroid Dimorphos’s Interior from Simulations." Planetary Science Journal 6, no. 7 (2025): 157. https://doi.org/10.3847/psj/addf31.

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Abstract Impact processes are fundamental in governing asteroid evolution. While recent space missions have provided ground-truth observations of the surface and orbital dynamics, interior features remain largely unexplored. NASA’s Double Asteroid Redirection Test (DART) mission recently achieved a successful kinetic impact on the near-Earth asteroid Dimorphos. The spacecraft imagery detected a boulder-strewn surface in the seconds before the impact, though its underlying structure remains uncertain. To examine the subsurface of Dimorphos, we modeled DART-scale impacts as a window into its int

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Mukhiddin Muminov, Nur Safirah Bahuriddin, Taufiq Khairi Ahmad Khairuddin, Syafina Ahmad, and Wan Rohaizad Wan Ibrahim. "An Extended Method for Fitting the First Order Polarization Tensor to a Spheroid." Journal of Advanced Research in Applied Sciences and Engineering Technology 23, no. 1 (2021): 8–17. http://dx.doi.org/10.37934/araset.23.1.817.

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Polarization Tensor (PT) has been widely used in some of the applications of electric and electromagnetic such as electrical imaging, metal detection and electrosensing fish. Furthermore, in these applications, polarization tensors can capture significant information such as material, shape and orientation about the related objects (medical images in electrical imaging or metallic target in metal detection). Some physical information about the unknown objects can then be characterized from the given first order polarization tensor that representing the object. Therefore, it is beneficial to de

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Myagkov, A., P. Seifert, M. Bauer-Pfundstein, and U. Wandinger. "Cloud radar with hybrid mode towards estimation of shape and orientation of ice crystals." Atmospheric Measurement Techniques 9, no. 2 (2016): 469–89. http://dx.doi.org/10.5194/amt-9-469-2016.

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Abstract. This paper is devoted to the experimental quantitative characterization of the shape and orientation distribution of ice particles in clouds. The characterization is based on measured and modeled elevation dependencies of the polarimetric parameters differential reflectivity and correlation coefficient. The polarimetric data are obtained using a newly developed 35 GHz cloud radar MIRA-35 with hybrid polarimetric configuration and scanning capabilities. The full procedure chain of the technical implementation and the realization of the setup of the hybrid-mode cloud radar for the shap

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Myagkov, A., P. Seifert, M. Bauer-Pfundstein, and U. Wandinger. "Cloud radar with hybrid mode towards estimation of shape and orientation of ice crystals." Atmospheric Measurement Techniques Discussions 8, no. 9 (2015): 9105–63. http://dx.doi.org/10.5194/amtd-8-9105-2015.

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Abstract. This paper is devoted to the experimental quantitative characterization of the shape and orientation distribution of ice particles in clouds. The characterization is based on measured and modeled elevation dependencies of the polarimetric parameters differential reflectivity and correlation coefficient. The polarimetric data is obtained using a newly developed 35 GHz cloud radar MIRA-35 with hybrid polarimetric configuration and scanning capabilities. The full procedure chain of the technical implementation and the realization of the setup of the hybrid-mode cloud radar for the shape

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Kitano, Otome, and Kohji Nakazawa. "Neuronal Differentiation of NT2 Cells in Monolayer and Spheroid Cultures." MATEC Web of Conferences 333 (2021): 07008. http://dx.doi.org/10.1051/matecconf/202133307008.

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Metabolism and differentiation of cultured cells are influenced by changes in cellular morphology. In this study, we investigated the differences in cell proliferation and neuronal differentiation of NT2 cells in monolayer (2D) and spheroid (3D) cultures. In the monolayer culture, the cells adhered and extended on a tissue culture plate. For the spheroid culture, we fabricated a microwell chip comprising 195 circular microwells (600 ìm in diameter) on a cutture plate, and the surface was modified with polyethylene glycol to promote spheroid formation. The cells were aggregated in each microwel

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Kitano, Otome, and Kohji Nakazawa. "Neuronal Differentiation of NT2 Cells in Monolayer and Spheroid Cultures." MATEC Web of Conferences 333 (2021): 07008. http://dx.doi.org/10.1051/matecconf/202133307008.

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Metabolism and differentiation of cultured cells are influenced by changes in cellular morphology. In this study, we investigated the differences in cell proliferation and neuronal differentiation of NT2 cells in monolayer (2D) and spheroid (3D) cultures. In the monolayer culture, the cells adhered and extended on a tissue culture plate. For the spheroid culture, we fabricated a microwell chip comprising 195 circular microwells (600 ìm in diameter) on a cutture plate, and the surface was modified with polyethylene glycol to promote spheroid formation. The cells were aggregated in each microwel

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Cao, X. F., G. Wan, F. Li, and K. Li. "The extended-Octree Spheroid Subdivision and Coding Model." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XL-4/W2 (October 25, 2013): 95–100. http://dx.doi.org/10.5194/isprsarchives-xl-4-w2-95-2013.

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Zieger, Viktoria, Ellen Woehr, Stefan Zimmermann, et al. "Automated Nanodroplet Dispensing for Large-Scale Spheroid Generation via Hanging Drop and Parallelized Lossless Spheroid Harvesting." Micromachines 15, no. 2 (2024): 231. http://dx.doi.org/10.3390/mi15020231.

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Creating model systems that replicate in vivo tissues is crucial for understanding complex biological pathways like drug response and disease progression. Three-dimensional (3D) in vitro models, especially multicellular spheroids (MCSs), offer valuable insights into physiological processes. However, generating MCSs at scale with consistent properties and efficiently recovering them pose challenges. We introduce a workflow that automates large-scale spheroid production and enables parallel harvesting into individual wells of a microtiter plate. Our method, based on the hanging-drop technique, u

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Wallace, Dorothy I., Ann Dunham, Paula X. Chen, et al. "A Model for Spheroid versus Monolayer Response of SK-N-SH Neuroblastoma Cells to Treatment with 15-Deoxy-PGJ2." Computational and Mathematical Methods in Medicine 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/3628124.

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Researchers have observed that response of tumor cells to treatment varies depending on whether the cells are grown in monolayer, asin vitrospheroids orin vivo. This study uses data from the literature on monolayer treatment of SK-N-SH neuroblastoma cells with 15-deoxy-PGJ2and couples it with data on growth rates for untreated SK-N-SH neuroblastoma cells grown as multicellular spheroids. A linear model is constructed for untreated and treated monolayer data sets, which is tuned to growth, death, and cell cycle data for the monolayer case for both control and treatment with 15-deoxy-PGJ2. The m

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Li, M., M. P. Goheen, and X. M. Yin. "Formation of Mitochondrial Spheroid in Response to Oxidative Stress." Microscopy and Microanalysis 19, S2 (2013): 212–13. http://dx.doi.org/10.1017/s143192761300305x.

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Voronov, E. V. "Heat treatment of mucous by-products under the influence of electrophysical factors: development of the installation." Agricultural Engineering, no. 6 (2023): 76–82. http://dx.doi.org/10.26897/2687-1149-2023-6-76-82.

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Low efficiency of equipment for heat treatment, disinfection and removal of unpleasant odour of substandard mucous by-products urges the development of an installation that provides for the complex effect of ultra-high frequency electromagnetic field, ozone and bactericidal flow of ultraviolet rays. The paper presents the technology and describes the installation developed by the authors. The installation ensures electromagnetic safety and uniformity of loading according to the penetration depth of the wave. The duration of raw material treatment is matched with the specific power of the micro

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Isingizwe, Zitha Redempta, Laura F. Mortan, and Doris Mangiaracina Benbrook. "Platelet and epithelial cell interations can be modeled in cell culture, and are not affected by dihomo-gamma-linolenic acid." PLOS ONE 19, no. 8 (2024): e0309125. http://dx.doi.org/10.1371/journal.pone.0309125.

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Increasing evidence is implicating roles for platelets in the development and progression of ovarian cancer, a highly lethal disease that can arise from the fallopian tubes, and has no current method of early detection or prevention. Thrombosis is a major cause of mortality of ovarian cancer patients suggesting that the cancer alters platelet behavior. The objective of this study was to develop a cell culture model of the pathological interactions of human platelets and ovarian cancer cells, using normal FT epithelial cells as a healthy control, and to test effects of the anti-platelet dihomo-

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16

Shen, F., and J. M. Khodadadi. "Thermal Diffusivity Determination of High-Temperature Levitated Oblate Spheroidal Specimen by a Flash Method." Journal of Heat Transfer 120, no. 3 (1998): 777–81. http://dx.doi.org/10.1115/1.2824350.

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In extending the range of applicability of a recently developed method, a single-step containerless flash technique for determining the thermal diffusivity of levitated oblate spheroidal oblate spheroidal samples is proposed. The flash method is modeled as an axisymmetric transient conduction heat transfer problem within the oblate spheroid. It is shown that by knowing the sample geometric parameters and recording the temperature rise history at least at two different points on the surface simultaneously, the thermal diffusivity can be determined without knowing needed for determining the ther

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Wegert, Jenny, Lisa Zauter, Silke Appenzeller, et al. "High-risk blastemal Wilms tumor can be modeled by 3D spheroid cultures in vitro." Oncogene 39, no. 4 (2019): 849–61. http://dx.doi.org/10.1038/s41388-019-1027-8.

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Abstract In vitro models represent a critical tool in cancer research to study tumor biology and to evaluate new treatment options. Unfortunately, there are no effective preclinical models available that represent Wilms tumor (WT) — the most common pediatric renal tumor. Especially the high-risk blastemal WT subtype is not represented by the few primary cell lines established until now. Here, we describe a new 3D approach for in vitro cultivation of blastemal WT cells, where primary cultures grown in suspension as spheroids could be propagated long-term. Besides blastemal cultures, we could ge

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Altomani, Andrea, and Andrea Santi. "Tanaka structures modeled on extended Poincar� algebras." Indiana University Mathematics Journal 63, no. 1 (2014): 91–117. http://dx.doi.org/10.1512/iumj.2014.63.5186.

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Amereh, Meitham, Roderick Edwards, Mohsen Akbari, and Ben Nadler. "In-Silico Modeling of Tumor Spheroid Formation and Growth." Micromachines 12, no. 7 (2021): 749. http://dx.doi.org/10.3390/mi12070749.

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Mathematical modeling has significant potential for understanding of biological models of cancer and to accelerate the progress in cross-disciplinary approaches of cancer treatment. In mathematical biology, solid tumor spheroids are often studied as preliminary in vitro models of avascular tumors. The size of spheroids and their cell number are easy to track, making them a simple in vitro model to investigate tumor behavior, quantitatively. The growth of solid tumors is comprised of three main stages: transient formation, monotonic growth and a plateau phase. The last two stages are extensivel

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Xu, S., S. Kaluz, E. Van Meir, and A. Marcus. "5-D confocal imaging to visualize glioblastoma spheroid invasion into the extracellular matrix." Microscopy and Microanalysis 18, S2 (2012): 180–81. http://dx.doi.org/10.1017/s1431927612002759.

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21

Fritz, Jamie Lee, Olga Collins, Parima Saxena, et al. "A Novel Role for NUAK1 in Promoting Ovarian Cancer Metastasis through Regulation of Fibronectin Production in Spheroids." Cancers 12, no. 5 (2020): 1250. http://dx.doi.org/10.3390/cancers12051250.

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Epithelial ovarian cancer (EOC) has a unique mode of metastasis, where cells shed from the primary tumour, form aggregates called spheroids to evade anoikis, spread through the peritoneal cavity, and adhere to secondary sites. We previously showed that the master kinase Liver kinase B1 (LKB1) is required for EOC spheroid viability and metastasis. We have identified novel (nua) kinase 1 (NUAK1) as a top candidate LKB1 substrate in EOC cells and spheroids using a multiplex inhibitor beads-mass spectrometry approach. We confirmed that LKB1 maintains NUAK1 phosphorylation and promotes its stabiliz

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Rosito, M. S., S. E. Pedrosa, P. B. Tissera та ін. "Field spheroid-dominated galaxies in a Λ-CDM Universe". Astronomy & Astrophysics 614 (червень 2018): A85. http://dx.doi.org/10.1051/0004-6361/201732302.

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Context. Understanding the formation and evolution of early-type, spheroid-dominated galaxies is an open question within the context of the hierarchical clustering scenario, particularly in low-density environments. Aims. Our goal is to study the main structural, dynamical, and stellar population properties and assembly histories of field spheroid-dominated galaxies formed in a Λ-cold dark matter (Λ-CDM) scenario to assess to what extent they are consistent with observations. Methods. We selected spheroid-dominated systems from a Λ-CDM simulation that includes star formation (SF), chemical evo

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Sales, Laura V., Amina Helmi, and Giuseppina Battaglia. "The Effect of Tidal Stripping on Composite Stellar Populations in Dwarf Spheroidal Galaxies." Advances in Astronomy 2010 (2010): 1–14. http://dx.doi.org/10.1155/2010/194345.

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We use N-body simulations to study the effects of tides on the kinematical structure of satellite galaxies orbiting a Milky Way-like potential. Here we focus on the evolution of a spherical, dark matter dominated satellite, which is modelled with two stellar components set ab initio to be spatially and kinematically segregated, in a way that resembles the configuration of the metal poor and metal rich stellar populations in several dwarf spheroidals of the Local Group. We find that an important attenuation of the initial differences in the distribution of the two stellar components occurs for

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Damelin, Leonard H., Sam Coward, Sarah F. Choudhury, et al. "Altered mitochondrial function and cholesterol synthesis influences protein synthesis in extended HepG2 spheroid cultures." Archives of Biochemistry and Biophysics 432, no. 2 (2004): 167–77. http://dx.doi.org/10.1016/j.abb.2004.09.023.

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Koepke, P., J. Gasteiger, and M. Hess. "Technical Note: Optical properties of desert dust with non-spherical particles: data incorporated to OPAC." Atmospheric Chemistry and Physics Discussions 15, no. 3 (2015): 3995–4023. http://dx.doi.org/10.5194/acpd-15-3995-2015.

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Abstract. Mineral desert dust particles in general are no spheres and assuming spherical particles, instead of more realistic shapes, has significant effects on modeled optical dust properties and so on the belonging remote sensing procedures for desert dust and the derived radiative forcing. Thus in a new version of the data base OPAC (Optical Properties of Aerosols and Clouds; Hess et al., 1998), the optical properties of the mineral particles are modeled describing the particles as spheroids with size dependent aspect ratio distributions, but with the size distributions and the spectral ref

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Montagnac, M., G. Agez, A. Patoux, A. Arbouet, and V. Paillard. "Engineered near- and far-field optical response of dielectric nanostructures using focused cylindrical vector beams." Journal of Applied Physics 131, no. 13 (2022): 133101. http://dx.doi.org/10.1063/5.0085940.

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Near- and far-field optical properties of silicon nanostructures under linear polarization (Gaussian beam) and azimuthally or radially focused cylindrical vector beams are investigated by finite-difference time-domain method (FDTD) in Meep open-source software. A python toolkit allowing FDTD simulations in Meep for using those excitation sources is provided. In addition to the preferential excitation of specific electric or magnetic resonance modes as a function of the excitation beam polarization, it is shown in the case of spheroids that shape anisotropy affects the resonance wavelength and

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Ciotti, Luca. "AGN feedback in numerical simulations." Proceedings of the International Astronomical Union 5, H15 (2009): 293. http://dx.doi.org/10.1017/s1743921310009348.

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AbstractThe passively evolving stellar population in elliptical galaxies (Es) provides a continuous source of fuel for accretion on the central supermassive black hole (SMBH), which is 1) extended over the entire galaxy life (but declining with cosmic time), 2) linearly proportional to the stellar mass of the host spheroid, 3) summing up to a total gas mass that is > 100 times larger than the currently observed SMBH masses, 4) available independently of merging events. The main results of numerical simulations of Es with central SMBH, in which a physically based implementation of radiative

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Wang, Zhen Qing, Song Zhou, Jian Sheng Zhou, and Xiao Di Wu. "Failure Analysis of Bolted Composite Joint Based on Extended Finite Element." Key Engineering Materials 488-489 (September 2011): 771–74. http://dx.doi.org/10.4028/www.scientific.net/kem.488-489.771.

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In this paper, the influence of geometrical parameters on failure load of bolted single-lap composite joint was investigated. The composite laminate was manufactured from HTA/6376, a high-strength carbon fiber–epoxy material currently used in primary structures in the European aircraft industry. Two geometrical parameters which were plate width-to-hole diameter ratio (W/D), and the edge-to-hole diameter ratio (E/D) were analyzed. To avoid modeling each ply of the laminates discretely, the laminates were modeled using equivalent linear elastic properties. the failure analysis was modeled by Ext

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CAMPOS, A. M., J. TORRES, and J. J. GIRALDO. "POROUS SILICON DIELECTRIC FUNCTION MODELING FROM EFFECTIVE MEDIUM THEORIES." Surface Review and Letters 09, no. 05n06 (2002): 1631–35. http://dx.doi.org/10.1142/s0218625x02004116.

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The spectral variation of the effective dielectric constant in porous silicon thin films is modeled using effective medium theories. The pores in the material are supposed to be spheroid prolate inclusions in a homogeneous matrix. We employ modified Maxwell–Garnett and Bruggeman expressions obtained from previous work. Fitting to experimental reflectance spectra and the refractive index at the visible spectral range is satisfactory. Best results in both models are obtained using the spheroidal inclusions of 0.9 eccentricity. The best adjusted porosity values for two samples with different para

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Koepke, P., J. Gasteiger, and M. Hess. "Technical Note: Optical properties of desert aerosol with non-spherical mineral particles: data incorporated to OPAC." Atmospheric Chemistry and Physics 15, no. 10 (2015): 5947–56. http://dx.doi.org/10.5194/acp-15-5947-2015.

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Abstract. Mineral particles, in general, are not spheres and so the assumption of spherical particles, instead of more realistic shapes, has significant effects on modeled optical properties and therefore on remote-sensing procedures for desert aerosol and the derived radiative forcing. Thus, in a new version of the database OPAC (Optical Properties of Aerosols and Clouds; Hess et al., 1998), the optical properties of the mineral particles are modeled describing the particles as spheroids with size dependent aspect ratio distributions, but with the size distributions and the spectral refractiv

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BUFFINGTON, JOHN, and ROBERT J. ELLIOTT. "AMERICAN OPTIONS WITH REGIME SWITCHING." International Journal of Theoretical and Applied Finance 05, no. 05 (2002): 497–514. http://dx.doi.org/10.1142/s0219024902001523.

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A Black-Scholes market is considered in which the underlying economy, as modeled by the parameters and volatility of the processes, switches between a finite number of states. The switching is modeled by a hidden Markov chain. European options are priced and a Black-Scholes equation obtained. The approximate valuation of American options due to Barone-Adesi and Whaley is extended to this setting.

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Lv, Yuan, та Zhong Gan. "Robustε-Support Vector Regression". Mathematical Problems in Engineering 2014 (2014): 1–5. http://dx.doi.org/10.1155/2014/373571.

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Spheroid disturbance of input data brings great challenges to support vector regression; thus it is essential to study the robust regression model. This paper is dedicated to establish a robust regression model which makes the regression function robust against disturbance of data and system parameter. Firstly, two theorems have been given to show that the robust linearε-support vector regression problem could be settled by solving the dual problems. Secondly, it has been focused on the development of robust support vector regression algorithm which is extended from linear domain to nonlinear

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LI, JUN, XIANZHONG DAI, ZHENGDA MENG, and LIBO XU. "IMPROVED NET REWRITING SYSTEMS–EXTENDED PETRI NETS SUPPORTING DYNAMIC CHANGES." Journal of Circuits, Systems and Computers 17, no. 06 (2008): 1027–52. http://dx.doi.org/10.1142/s0218126608004794.

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The existing extensions of Petri nets supporting dynamic changes cannot ensure preservation of desired properties of the modeled systems. This paper tries to address this problem. By extending the structure of the net rewriting system (NRS) and modifying the specification of its rewriting rule, we present improved net rewriting system (INRS). INRS enjoys four important properties, i.e., locality, transitivity, reflexivity, and reversibility. A practical system subject to dynamic changes can be modeled by an INRS, and its desired properties can be preserved with the state evolvement of the INRS

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Brown, Thomas M., Ed Smith, Henry C. Ferguson, et al. "The Extended Star Formation History of the Andromeda Spheroid at 21 kpc on the Minor Axis." Astrophysical Journal 658, no. 2 (2007): L95—L98. http://dx.doi.org/10.1086/515395.

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Brown, Thomas M., Rachael Beaton, Masashi Chiba, et al. "The Extended Star Formation History of the Andromeda Spheroid at 35 kpc on the Minor Axis." Astrophysical Journal 685, no. 2 (2008): L121—L124. http://dx.doi.org/10.1086/592686.

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Bünner, M. J., Th Meyer, A. Kittel, and J. Par. "On the Correspondence of Time-Delay and Spatially Extended Systems." Zeitschrift für Naturforschung A 52, no. 8-9 (1997): 573–77. http://dx.doi.org/10.1515/zna-1997-8-903.

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Abstract We establish a straightforward connection between spatially extended systems, the dynamics of which are modeled with the help of partial differential equations and time-delay systems. To this end, we give a linear partial differential equation with a nonlinear boundary condition whose solutions are equivalent to the solutions of a time-delay differential equation. We observe that the phase space of these systems exhibits a pronounced structure. In this paper, we express the structure of the phase space of time-delay systems and the corresponding spatially extended system by distinguis

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Caponetti, Diana, Alessandro Trombetta, and Giulio Trombetta. "Compactness in Groups of Group-Valued Mappings." Mathematics 10, no. 21 (2022): 3973. http://dx.doi.org/10.3390/math10213973.

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We introduce the concepts of extended equimeasurability and extended uniform quasiboundedness in groups of group-valued mappings endowed with a topology that generalizes the topology of convergence in measure. Quantitative characteristics modeled on these concepts allow us to estimate the Hausdorff measure of noncompactness in such a contest. Our results extend and encompass some generalizations of Fréchet–Šmulian and Ascoli–Arzelà compactness criteria found in the literature.

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Castaldo, Raffaele, Pietro Tizzani, and Giuseppe Solaro. "Inflating Source Imaging and Stress/Strain Field Analysis at Campi Flegrei Caldera: The 2009–2013 Unrest Episode." Remote Sensing 13, no. 12 (2021): 2298. http://dx.doi.org/10.3390/rs13122298.

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In this study, we analyze the 2009–2013 uplift phenomenon at Campi Flegrei (CF) caldera in terms of temporal and spatial variations in the stress/strain field due to the effect of an inflating source. We start by performing a 3D stationary finite element (FE) modeling of X-band COSMO-SkyMed DInSAR and GPS mean velocities to retrieve the geometry and location of the deformation source. The modeling results suggest that the best-fit source is a three-axis oblate spheroid ~3 km deep, which is mostly elongated in the NE–SW direction. Furthermore, we verify the reliability of model results by calcu

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Biswasa, Anjan, Mehmet Ekici, and Abdullah Sonmezoglu. "Gaussian solitary waves to Boussinesq equation with dual dispersion and logarithmic nonlinearity." Nonlinear Analysis: Modelling and Control 23, no. 6 (2018): 942–50. http://dx.doi.org/10.15388/na.2018.6.8.

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This paper discusses shallow water waves that is modeled with Boussinesq equation that comes with dual dispersion and logarithmic nonlinearity. The extended trial function scheme retrieves exact Gaussian solitary wave solutions to the model.

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Hezel, P. J., T. Fichefet, and F. Massonnet. "Modeled Arctic sea ice evolution through 2300 in CMIP5 extended RCPs." Cryosphere Discussions 8, no. 1 (2014): 1383–406. http://dx.doi.org/10.5194/tcd-8-1383-2014.

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Abstract. Almost all global climate models and Earth system models that participated in the Coupled Model Intercomparison Project 5 (CMIP5) show strong declines in Arctic sea ice extent and volume under the highest forcing scenario of the Radiative Concentration Pathways (RCPs) through 2100, including a transition from perennial to seasonal ice cover. Extended RCP simulations through 2300 were completed for a~subset of models, and here we examine the time evolution of Arctic sea ice in these simulations. In RCP2.6, the summer Arctic sea ice extent increases compared to its minimum following th

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Hezel, P. J., T. Fichefet, and F. Massonnet. "Modeled Arctic sea ice evolution through 2300 in CMIP5 extended RCPs." Cryosphere 8, no. 4 (2014): 1195–204. http://dx.doi.org/10.5194/tc-8-1195-2014.

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Abstract. Almost all global climate models and Earth system models that participated in the Coupled Model Intercomparison Project 5 (CMIP5) show strong declines in Arctic sea ice extent and volume under the highest forcing scenario of the representative concentration pathways (RCPs) through 2100, including a transition from perennial to seasonal ice cover. Extended RCP simulations through 2300 were completed for a~subset of models, and here we examine the time evolution of Arctic sea ice in these simulations. In RCP2.6, the summer Arctic sea ice extent increases compared to its minimum followi

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Weiler, C. K. F., and S. Körkel. "Optimum experimental design for extended Gaussian disorder modeled organic semiconductor devices." Journal of Applied Physics 113, no. 9 (2013): 094903. http://dx.doi.org/10.1063/1.4794365.

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Kakuda, Yoshiaki, Tohru Kikuno, and Kenichi Kawashima. "Automated verification of responsive protocols modeled by extended finite state machines." Real-time Systems 7, no. 3 (1994): 275–89. http://dx.doi.org/10.1007/bf01088522.

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DuPont, Marcus, Andrew MacFadyen, and Jonathan Zrake. "Ellipsars: Ring-like Explosions from Flattened Stars." Astrophysical Journal Letters 931, no. 2 (2022): L16. http://dx.doi.org/10.3847/2041-8213/ac6ded.

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Abstract The stellar cataclysms producing astronomical transients have long been modeled as either a point-like explosion or jet-like engine ignited at the center of a spherically symmetric star. However, many stars are observed, or are expected on theoretical grounds, not to be precisely spherically symmetric, but rather to have a slightly flattened geometry similar to that of an oblate spheroid. Here we present axisymmetric two-dimensional hydrodynamical simulations of the dynamics of point-like explosions initiated at the center of an aspherical massive star with a range of oblateness. We r

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Illanes, León, and Sheila McIlraith. "Numeric Planning via Search Space Abstraction (Extended Abstract)." Proceedings of the International Symposium on Combinatorial Search 7, no. 1 (2021): 133–34. http://dx.doi.org/10.1609/socs.v7i1.18409.

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Many real-world planning problems are best modeled as infinite search space problems, using numeric fluents. Unfortunately, most planners and planning heuristics do not directly support such fluents. We propose a search space abstraction technique that compiles a planning problem with numeric fluents into a finite state propositional planning problem. To account for the loss of precision resulting from the abstraction, we leverage a policy repair technique used for non-deterministic planning. We evaluate our approach on a set of benchmarks and compare it to state-of-the-art planners that deal

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Ali, Muhammad Nasir, Syed Muhammad Husnine, Sana Noor, and Turgut Ak. "Soliton Solutions of Space-Time Fractional-Order Modified Extended Zakharov-Kuznetsov Equation in Plasma Physics." Bulletin of Mathematical Sciences and Applications 20 (November 2018): 1–8. http://dx.doi.org/10.18052/www.scipress.com/bmsa.20.1.

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The aim of this article is to calculate the soliton solutions of space-time fractional-order modified extended Zakharov-Kuznetsov equation which is modeled to investigate the waves in magnetized plasma physics. Fractional derivatives in the form of modified Riemann-Liouville derivatives are used. Complex fractional transformation is applied to convert the original nonlinear partial differential equation into another nonlinear ordinary differential equation. Then, soliton solutions are obtained by using (1/G')-expansion method. Bright and dark soliton solutions are also obtain with ansatz metho

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Yang, Kuang Shine, and Chih Ming Chang. "System Integration for the Environmental Friendly Electric Vehicle." Applied Mechanics and Materials 709 (December 2014): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amm.709.300.

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This paper introduced a new power flow control strategy for a variable speed engine-generator based range-extended electric vehicle. The specific fuel consumption map of the internal combustion engine (ICE) has been obtained by off-line experiments to achieve optimal fuel efficiency. Finally, a typical range-extended electric vehicle is modeled and investigated such as acceleration traversing ramp, maximum speed, fuel consumption and emission are performed on the dynamic model of a range-extended electric vehicle. The energy consumption and cost were compared to tradition range-extended electr

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Wang, Shijun, Shengjiang Peng, Chang Sun, Amardeep Singh, Ziyun Cheng, and Yunfei Tian. "Crack Propagation and Failure Mechanism of Modeled Recycled Concrete under Shear Stress." Sustainability 14, no. 9 (2022): 5552. http://dx.doi.org/10.3390/su14095552.

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In this study, the failure processes of modeled concrete specimens under shear force were studied. To investigate the cracks propagation and failure modes, modeled natural aggregate, modeled recycled aggregate, and modeled brick aggregate were used as coarse aggregate in the modeled concrete. Through digital image correlation (DIC) technology, the displacement field and strain field could be obtained by analyzing the change of the speckle position on the surface of the specimens. It was found that the shear strength of the modeled natural concrete (MNC) was the highest, the modeled recycled co

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SCHMIDT, THORSTEN. "AN INFINITE FACTOR MODEL FOR CREDIT RISK." International Journal of Theoretical and Applied Finance 09, no. 01 (2006): 43–68. http://dx.doi.org/10.1142/s0219024906003482.

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The defaultable term structure is modeled using stochastic differential equations in Hilbert spaces. This leads to an infinite dimensional model, which is free of arbitrage under a certain drift condition. Furthermore, the model is extended to incorporate ratings based on a Markov chain.

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Hamza, Yasmeen, Afagh Farhadi, Douglas M. Schwarz, Joyce M. McDonough, and Laurel H. Carney. "Representations of fricatives in subcortical model responses: Comparisons with human consonant perception." Journal of the Acoustical Society of America 154, no. 2 (2023): 602–18. http://dx.doi.org/10.1121/10.0020536.

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Fricatives are obstruent sound contrasts made by airflow constrictions in the vocal tract that produce turbulence across the constriction or at a site downstream from the constriction. Fricatives exhibit significant intra/intersubject and contextual variability. Yet, fricatives are perceived with high accuracy. The current study investigated modeled neural responses to fricatives in the auditory nerve (AN) and inferior colliculus (IC) with the hypothesis that response profiles across populations of neurons provide robust correlates to consonant perception. Stimuli were 270 intervocalic fricati

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