Results 61 to 70 of about 44,632 (309)
Progress in Experimental Study of Plume Plasma Discharge Characteristics of the Hollow Cathode
气体物理With the continuous maturation and sustained application of electric propulsion technology, electric propulsion is becoming the preferred choice of space propulsion for deep space exploration missions with its high specific impulse advantage. Among them,
Jintao JIA, Long MIAO, Yugan LIAO
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International Journal of Electrochemical Science, 2018 The effective control of the nanostructure is recognized as an effective method for improving the electrochemical performance of the LiFePO4 cathode; nevertheless, it is still a great challenge to simultaneously achieve high tap density and excellent ...
Yuan Jin, Haiyan Wang, Xincun Tang
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PPU for a small, low power and low cost EPS [PDF]
MATEC Web of Conferences, 2019 The objective of this paper is to present the design of the Power Processing Unit (PPU) of the Microsatellite Electric Propulsion System (MEPS) program currently being developed at Elegant Bread Board (EBB).
Savvas Spiridon +2 more
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Ring-cusp ion thruster with shell anode [PDF]
, 1984 An improved ion thruster for low specific impulse operation in the 1500 sec to 6000 sec range has a multicusp boundary field provided by high strength magnets on an iron anode shell which lengthens the paths of electrons from a hollow cathode assembly. A
Rawlin, V. K. +2 more
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Xenon excimer emission from multicapillary discharges in direct current mode [PDF]
, 2011 Microdischarges in xenon have been generated in a pressure range of 400–1013 mbar with a fixed flow rate of 100 sccm. These microdischarges are obtained from three metallic capillary tubes in series for excimer emission. Total discharge voltage is thrice
Frank, Klaus +6 more
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Advanced Science, EarlyView.This review highlights recent advancements in stabilizing single metal atoms on graphitic carbon nitride emphasizing innovative synthesis strategies and emerging applications in electrocatalysis, photocatalysis and organic transformations, along with key challenges and future perspective. Abstract Emerging as a new frontier in catalysis science, single‐
Wenyao Zhang +6 more
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Advanced Science, EarlyView.This review explores inorganic metal oxides and metal salt nanoparticles templated porous carbons, highlighting their synthesis, structural features, and performance in energy and environmental applications. It critically compares template types, porosity control, and functional outcomes across recent literature.
Gurwinder Singh +8 more
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Frontiers in Chemistry, 2019 LiFeBO3/C cathode material with hollow sphere architecture is successfully synthesized by a spray-drying method. SEM and TEM results demonstrate that the micro-sized LiFeBO3/C hollow spheres consist of LiFeBO3@C particles and the average size of LiFeBO3 ...
Yulei Sui +7 more
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Endurance testing of downstream cathodes on a low-power MPD thruster [PDF]
A low-power MPD thruster with downstream cathode was tested for endurance with a series of hollow cathode designs. Failure modes and failure mechanisms were identified. A new hollow cathode (with rod inserts) has emerged which shows promise for long life.
Burkhart, J. A., Rose, J. R.
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Doppler-free frequency modulation spectroscopy of atomic erbium in a hollow cathode discharge cell
, 2011 The erbium atomic system is a promising candidate for an atomic Bose-Einstein condensate of atoms with a non-vanishing orbital angular momentum ($L \neq 0$) of the electronic ground state.
A.S. Bell +23 more
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