Results 1 to 10 of about 59,301 (115)

Fixed Point Results on Partial Modular Metric Space

open access: yesAxioms, 2022
In the present paper, we refine the notion of the partial modular metric defined by Hosseinzadeh and Parvaneh to eliminate the occurrence of discrepancies in the non-zero self-distance and triangular inequality. In support of this, we discuss non-trivial
Dipankar Das   +4 more
doaj   +3 more sources

Design and Dynamic Simulation Verification of an On-Orbit Operation-Based Modular Space Robot

open access: yesApplied Sciences, 2023
Space robots have been playing an important role in space on-orbit operation missions. However, the traditional configuration of space robots only has a single function and cannot meet the requirements of different space missions, and the launch cost of ...
Dong Yang, Xiaokui Yue, Ming Guo
doaj   +3 more sources

Modular Permanent Magnet Synchronous Machine with Low Space Harmonic Content

open access: yesEnergies, 2020
Modularity technique is desirable in large permanent magnet synchronous machines (PMSMs) because it facilitates manufacture, assembly, and maintenance.
Keyi Wang, Heyun Lin
doaj   +3 more sources

Emergence of kinematic space from quantum modular geometric tensor

open access: yesPhysics Letters B, 2022
We generalize the Quantum Geometric Tensor by replacing a Hamiltonian with a modular Hamiltonian. The symmetric part of the Quantum Geometric Tensor provides a Fubini-Study metric, and its anti-symmetric sector gives a Berry curvature. Our generalization
Xing Huang, Chen-Te Ma
doaj   +3 more sources

‎Intuitionistic Fuzzy Modular Spaces [PDF]

open access: yesTransactions on Fuzzy Sets and Systems, 2023
‎After the introduction of the concept of fuzzy sets‎ ‎by Zadeh‎, ‎several researches were conducted on‎ ‎the generalizations of the notion of fuzzy sets‎. ‎There are many viewpoints on the notion of metric space in fuzzy topology‎.
Tayebe Lal Shateri
doaj   +1 more source

A Passive Vibration Control Method of Modular Space Structures Based on Band Gap Optimization

open access: yesInternational Journal of Aerospace Engineering, 2022
Modular space structure has become a research hotspot in the aerospace field. In the microgravity and weak damping space environment, modular space structures may continuously vibrate due to the transient excitation caused by satellite attitude ...
Juntao Zhu   +5 more
doaj   +1 more source

Convexity and boundedness relaxation for fixed point theorems in modular spaces

open access: yesApplied General Topology, 2021
Although fixed point theorems in modular spaces have remarkably applied to a wide variety of mathematical problems, these theorems strongly depend on some assumptions which often do not hold in practice or can lead to their reformulations as particular ...
Fatemeh Lael, Samira Shabanian
doaj   +1 more source

Probabilistic modular metric spaces [PDF]

open access: yesJournal of Hyperstructures, 2020
The purpose of this study is to investigate the connection between probabilistic and modular metric spaces. We discussseveral important properties such as convergence and completeness,etc, and the relationship among the mentioned properties in the ...
Kianoush Fathi Vajargah   +1 more
doaj   +1 more source

Modular Line-Focused Space Solar Power Satellite

open access: yesAerospace, 2021
The Space Solar Power Satellite is an ultra-large space structure, which collects sunlight directly in space and then transmits it into the ground. Since the idea was invented in 1968, scientists around the world have proposed several typical conceptual ...
Yang Yang   +3 more
doaj   +1 more source

A unified approach for measuring the level of service of transport infrastructure [PDF]

open access: yesE3S Web of Conferences
This article aims to discuss the problem of road traffic management and the criteria for its measurement. The article uses the concept of service level as the most important characteristic in the assessment of transport infrastructure. The differences in
Radionov Timofei   +3 more
doaj   +1 more source

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