thruster on/off time
Experimental Investigation of the Traction Force for a New Space Thruster
... The lowest values of the traction force were observed at on October 16, while the peak values occurred practically at the same time on both days, i.e. . By night, the force appeared to be greater than during ...
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Mathematical Modeling of Liquid-fed Pulsed Plasma Thruster
... mass ablated per discharge [11]. However, the model doesn’t incorporate the mass produced after the primary pulse (post-pulse mass), this post pulse mass could be significant in ablative pulsed plasma thrusters as ...
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The Microwave Thermal Thruster and Its Application to the Launch Problem
... The false transient method used previously extends to encompass the convection model in this case. If the quasi-1D convection model is used, its solution is already steady state and so the conduction model becomes the ...
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Particle-in-Cell Simulation of a 5 kW Hall Thruster
... with time when the discharge voltage was 300 V and the propellant mass flow rate was 10 ...with time was similar to that of the number of macroparticles, as shown in ...
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Design And Fabrication Of A Model Methylpropane Rocket Thruster
... The rapid growth in demand for spacecraft launch services has spawned a need for a variety of new, innovative, and low-cost propulsion technologies, Advanced, low-cost rocket engine controllers are a critical part of the ...
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Theory of a Mach Effect Thruster I
... Consideration of the momentum form of the geodesic equation was found by one of us (HF) to lead to Wood- ward’s mass change formula, by simply allowing the mass to change with time. This method derives the mass ...
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Pocket Rocket: An electrothermal plasma micro-thruster
... simulation time, running 100 s of simulation time will take approximately 220 days (7 ...enough time scales for wall heating effects to be directly included in the ...
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Theoretical Limits on the Efficiency of a Quantum Vacuum Thruster
... the Lamb shift in hydrogen (another tiny vacuum effect that has been confirmed experimentally [2]). It is a general property of quantum mechanics that the amplitude of a process is the sum of the amplitudes of all ...
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Development of an electronically controlled thruster
... The first action, upon opening the STL file in MeshLab, was to unify any duplicated vertices automatically. This process allowed for the deletion of any construction lines that were used in the modelling process that ...
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Development and characterization of the ionic polymer metal composite actuated contractile water jet thruster
... First of all I would like to express my gratefulness to Allah the Almighty which make me able to finish this project successfully. I would like to dedicate my sincere gratitude and thankful to my supervisor, Associate ...
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Solid state MPD thruster with applied magnetic field
... long time required to perform this kind of measurement data are still not available for all the energies and all the applied field ...the thruster does not ...
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Electrostatic ION Thruster for Spacecrafts
... Electrostatic Thruster is a kind of thruster which produces thrust on a spacecraft with the help of accelerating ...transfer time from Low earth orbit to the operational ...
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A Bi-Criteria Multi-Index Bulk Transportation Problem
... In this paper, an efficient solution procedure is proposed to study the cost-time trade- off relations in MIBTP. In Section 2, formulation of the problem is presented. Section 3, presents the solution ...
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Discrete time hands off control by sparse optimization
... Motivated by these researches, the maximum hands-off control has been proposed in [15, 16] for continuous-time systems. This control maximizes the length of the time duration over which the control ...
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Design of an Adaptive Controller of a Satellite using Thruster Actuator
... A spacecraft to accomplish its mission, requires several subsystems. Attitude determination and control system (ADCS) is one of the most crucial subsystems of the spacecraft. The controller algorithm is an essential part ...
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High altitude operations with piston engines powerplant design optimization
... Propulsion system is a most difficult technical challenge in unmanned aircraft designed to fly subsonically >20, 000m (60, 000ft) for >4 hrs. In this flight regime, however, air breathing propulsion is difficult to ...
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Download Download PDF
... Especially in the last quote, it is clear how the person selling surveillance equipment used examples close to the interviewee to make the sale. At a theoretical level, this type of circulation of ‘scare stories’ ...
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Distributed pre-computation for a cryptanalytic time-memory trade-off
... This claim of half the total number of calculations is disputed by Barkan, Biham and Shamier [13]. They point out that Oechslin ignores the number of bits used to represent the starting and ending points and only ...
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Degradation of 4-Chlorophenol in Aqueous Solution by Sono- Electro-Fenton Process
... along with p-hydroxybenzoic acid (pHBA) by a 1200 Infinity Series HPLC (Agilent) equipped with a 1260 DAD detector (Agilent) and a Thermo ODS Hypersil C18 column (4.6 × 50 mm) with a 5 µm particle size. The initial BA ...
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Do prevalence expectations affect patterns of visual search and decision-making in interpreting CT colonography endoluminal videos?
... minimum time threshold) throughout the period when no polyp was onscreen, divided by the duration of this ...period. Time-points when the Tobii software failed to identify whether a coordinate belonged to ...
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