Results 81 to 90 of about 44,632 (309)
Preliminary test results of a hollow cathode MPD thruster [PDF]
Performance of four hollow cathode configurations with low work function inserts was evaluated in a steady-state 100 kW class applied magnetic field magnetoplasmadynamic (MPD) thruster.
Mantenieks, Maris A., Myers, Roger M.
core +1 more source
High power metallic halide laser [PDF]
, 1982 A laser amplification system is disclosed whereby a metallic halide vapor such as copper chloride is caused to flow through a laser amplifier and a heat exchanger in a closed loop system so that the flow rate is altered to control the temperature rise ...
Pivirotto, T. J.
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XI. On cathode and canal rays from hollow cathodes [PDF]
The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science, 1908 n ...
openaire +2 more sources
Advanced Science, EarlyView.Imidazolium PIL nanoparticles, as an N‐rich template and morphology director, enable a colloidal self‐nitriding route to TMNs (VN, Mo2N) within controlled solid/hollow carbon architectures. As sulfur hosts/additives, TMNs accelerate Li–S redox kinetics and support high‐loading cathodes.
Yael Rodriguez Ayllon +14 more
wiley +1 more source
Investigation of plasma contactors for use with orbiting wires [PDF]
The proposed Shuttle-based short tether experiments with hollow cathodes have the potential for providing important data that will not be obtained in long tether experiments.
Estes, Robert D. +2 more
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Compact High Current Rare-Earth Emitter Hollow Cathode for Hall Effect Thrusters [PDF]
, 2012 An apparatus and method for achieving an efficient central cathode in a Hall effect thruster is disclosed. A hollow insert disposed inside the end of a hollow conductive cathode comprises a rare-earth element and energized to emit electrons from an inner
Goebel, Dan M. +2 more
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Advanced Science, EarlyView.ABSTRACT Current prostate cancer detection methods remain limited in non‐invasiveness and specificity, prompting interest in urinary biomarkers such as sarcosine. Here, we report a urine‐powered wearable platform for non‐invasive sarcosine detection as a proof‐of‐concept for decentralized early warning.
Jing Xu +10 more
wiley +1 more source
An Investigation into Electrolytes and Cathodes for Room-Temperature Sodium–Sulfur Batteries
BatteriesIn the pursuit of high energy density batteries beyond lithium, room-temperature (RT) sodium–sulfur (Na-S) batteries are studied, combining sulfur, as a high energy density active cathode material and a sodium anode considered to offer high energy ...
Hakeem Ademola Adeoye +3 more
doaj +1 more source
Microanalysis of extended-test xenon hollow cathodes [PDF]
Four hollow cathode electron sources were analyzed via boroscopy, scanning electron microscopy, energy dispersive x ray analysis, and x ray diffraction analysis.
Patterson, Michael J. +1 more
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Advanced Science, EarlyView.Selective CO formation in bicarbonate electrolysis is achieved by retaining reactive CO2 and tuning pH, while the competing hydrogen evolution reaction occurs at the interface. The rate‐determining step couples the chemical equilibrium of bicarbonate/CO2 with electrochemical charge transfer, offering insight into optimizing reaction conditions for ...
Lin Li +7 more
wiley +1 more source