Results 61 to 70 of about 18,950 (295)
Fault Tolerant Control of Satellite Orbital Maneuvering Based on Virtual Actuator [PDF]
علوم، فناوری و کاربردهای فضاییIn this article, a fault tolerant control based on a virtual actuator is used for the maneuvering of low earth orbit satellites that are subject to the loss of the effectiveness and additive actuator faults as well as natural disturbances such as ...
Masoud Dehnad +2 more
doaj +1 more source
AIP Advances, 2021 This study designs a closed-loop magnetic circuit using permeable materials to increase the uniformity and intensity of the magnetic field based on an internal conductive square Magnetohydrodynamics (MHD) thruster that consists of a pair of NdFeB magnets.
Yan-Hom Li, Cing-Hui Zeng, Yen-Ju Chen
doaj +1 more source
Advanced Engineering Materials, EarlyView.This article presents the NFDI‐MatWerk Ontology (MWO), a Basic Formal Ontology‐based framework for interoperable research data management in materials science and engineering (MSE). Covering consortium structures, research data management resources, services, and instruments, MWO enables semantic integration, Findable, Accessible, Interoperable, and ...
Hossein Beygi Nasrabadi +4 more
wiley +1 more source
, 2023 reservedThis thesis aims to describe a work which consisted in going to develop a matlab code that would optimize the performance of a Helicon thruster. The work carried out was divided into two main parts.
PASINATO, LORENZO
core
Performance Evaluation of Ammonium Dinitramide-Based Monopropellant in a 1N Thruster
AerospaceThe development of propulsion systems based on green propellants, as an alternative to hydrazines, has been gaining interest within the space community.
Wonjae Yoon +2 more
doaj +1 more source
Liquid micro pulsed plasma thruster
Nukleonika, 2015 A new type of pulsed plasma thruster (PPT) for small satellite propulsion is investigated, of which the most innovative aspect is the use of a non-volatile liquid propellant. The thruster is based on an open capillary design.
Szelecka Agnieszka +3 more
doaj +1 more source
Investigating the neutralizer cathode location in the SPT type Hall Effect thruster [PDF]
علوم، فناوری و کاربردهای فضاییThe position of the cathode concerning the magnetic field map inside the discharge channel affects the performance and lifetime of the Hall effect thruster. The neutralizer cathode has two important functions in the Hall effect thruster.
mohammadmehdi shafie +4 more
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Physical Configuration Design of a 10N Monopropellant Hydrazine Thruster [PDF]
فصلنامه علوم و فناوری فضایی, 2019 In this paper, design and physical configuration of various components of a 10N Monopropellant Hydrazine Thruster focusing on design calculations and optimization of catalytic combustion chamber. According to this design, a prototype of the thruster will
Hadiseh Karimaei +3 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch +3 more
wiley +1 more source
Local optimization of thruster configuration based on a synthesized positioning capability criterion
International Journal of Naval Architecture and Ocean Engineering, 2015 DPCap analysis can assist in determining the maximum environmental forces the DP system can counteract for a given heading. DPCap analysis results are highly affected by the thrust forces provided by the thrust system which consists of several kinds of ...
Shengwen Xu, Lei Wang, Xuefeng Wang
doaj +1 more source