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Yongjie Liu, Yu Jiang and Hengnian Li
We investigate the topological types and bifurcations of periodic orbits in the gravitational field of irregular bodies by the well-known two parameter analysis method. Results show that the topological types of periodic orbits are determined by the loca...
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Wenfei Ji, Tonghai Jiang, Meng Wang, Xinyu Tang, Guang Chen and Shan Yang
Currently, low-dimensional embedded representation learning models are the mainstream approach in knowledge representation research, due to ease of calculation and ability to utilize the spatial relationship between knowledge areas, which benefit from st...
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Claudio Argentino, Stefano Conti, Chiara Fioroni and Daniela Fontana
The occurrence of seep-carbonates associated with shallow gas hydrates is increasingly documented in modern continental margins but in fossil sediments the recognition of gas hydrates is still challenging for the lack of unequivocal proxies. Here, we com...
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Sergey A. Khoperskov,Yulia A. Venichenko,Sergey S. Khrapov,Eugene O. Vasiliev
Pág. 103 - 106
A parallel implementation of the magneto-hydrodynamical code for global modeling of the galactic evolution is reported. The code is parallelized by using MPI interface, and it shows ideal scaling up to 200?300 cores on Lomonosov supercomputer with fast i...
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Daniele Sampietro and Martina Capponi
The bathymetry is the most superficial layer of the Earth?s crust on which it is possible to perform direct measurements. However, it is also well known that water covers more than 70% of the Earth?s surface, so an enormous expenditure of acquisition cam...
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Hong Li, Kun Ji, Ye Tao and Chun?an Tang
On the basis of a conceptual model for an Excavation based Enhanced Geothermal System (EGS-E), which proposed to extract heat from Hot Dry Rock at depth through dominantly adopting shaft, roadways, and caved rock failure techniques but not depending on e...
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Guido S. Mariani and Andrea Zerboni
The attention to deep-seated gravitational slope deformations (DSGSDs) has steadily increased in the last few decades, because such features are ubiquitous in mountain areas. Their geomorphological surface expression, especially when related to the effec...
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Monia Calista, Francesco Mascioli, Valeria Menna, Enrico Miccadei and Tommaso Piacentini
Geomorphological evolution, erosion and retreat processes that affect the rocky coasts of the mid-western Adriatic Sea (Abruzzo, Central Italy) are the subject of this research. This coastal sector, one of the few examples of clastic soft rock coasts in ...
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Anna Okhitina, Stepan Tkachev and Dmitry Roldugin
This paper considers a construction procedure of a satellite reference angular motion in the vicinity of an unstable gravitational equilibrium position. The satellite is stabilized on the reference trajectory by the magnetic coils. The problem is solved ...
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Stephanie Schoss, Oliver Ullrich, Jean-François Clervoy and David Scheffer
Earth?s mass generates a definitive Earth-vertical reference, shaping life?s evolution. Notably, these gravity models influence self-perception and the first-person viewpoint in the CNS, tied to bodily self-awareness and spatial orientation. Transitionin...
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Vincenzo Benedetto, Francesco Gissi, Gioele Ciaparrone and Luigi Troiano
Gravitational wave research presents a range of intriguing challenges, each of which has driven significant progress in the field. Key research problems include glitch classification, glitch cancellation, gravitational wave denoising, binary black hole s...
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He Huang, Zejian Li, Zongyi Guo, Jianguo Guo, Le Suo and Haoliang Wang
This paper investigates the issue of balance control for reaction-wheeled inverted pendulum-type Cubli Rovers on asteroids, and an adaptive control scheme is proposed via the prescribed performance control technique. The main feature lies in the fact tha...
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Madhur Tiwari, Eric Coyle and Richard J. Prazenica
In this work, we propose a novel controller based on a simple adaptive controller methodology and model predictive control (MPC) to generate and track trajectories of a spacecraft in the vicinity of asteroids. The control formulation is based on using ad...
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Daniele Sampietro and Martina Capponi
To solve the inverse gravimetric problem, i.e., to estimate the mass density distribution that generates a certain gravitational field, at local or regional scale, several parameters have to be defined such as the dimension of the 3D region to be conside...
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Stuart Reid and Iain W. Martin
The first detections of gravitational waves, GW150914 and GW151226, were associated with the coalescence of stellar mass black holes, heralding the opening of an entirely new way to observe the Universe. Many decades of development were invested to achie...
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Ivo Baselt, Adis Skejic, Budo Zindovic and Jens Bender
Landmines and explosive remnants of war are still present in the Western Balkans and remain a deadly legacy of the hostilities at the end of the 20th century. Over the years, several incidents have occurred in Bosnia and Herzegovina, in Serbia, and in Cr...
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Huan Wang, Erzheng Fang, Mingze Wu, Lianjin Hong and Zongru Li
When an underwater target moves in viscous fluid, it may cause the periodic movement of the surrounding fluid and generate ultra-low-frequency (ULF) gravity waves. The initial domain of the gravitational surface wave propagating above the moving target i...
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George A. Papakostas, John W. Nolan and Athanasios C. Mitropoulos
One of the most challenging problems that are still open in the field of materials science is the 3D reconstruction of porous media using information from a single 2D thin image of the original material. Such a reconstruction is only feasible subject to ...
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Jong In Han, Ho Seon Choi and Yoon Su Baek
Lower extremity assistive devices (LEADs) have been developed in various fields, such as rehabilitation, military, and industry, in the form of exoskeleton robots or treadmills, and most of them are aimed at supporting muscle strength. However, unlike th...
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Volodymyr Naradovyi,Yurii Hurtovyi,Olga Avramenko
Pág. 28 - 36
The study was performed to analyze the flux of energy of internal gravitational-capillary waves in a two-layer hydrodynamic liquid system with finite layer thicknesses. The problem was considered for an ideal incompressible fluid in the field of gravity ...
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