Results 131 to 140 of about 2,308 (275)

GaN‐Based Three‐Phase Voltage and Current Sources for Power Relay Testing

open access: yesIET Power Electronics
This paper implements low‐cost GaN‐based three‐phase voltage and current sources to validate power protecting relays. This proposal develops a voltage generator that uses three single‐phase full‐bridge converters equipped with an LC filter and an ...
Luis Ramón Merchan‐Villalba   +7 more
doaj   +1 more source

Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110) [PDF]

open access: yes
From 1999 to 2006, the NASA Glenn Research Center (GRC) supported the development of a high-efficiency, nominal 110-We Stirling Radioisotope Generator (SRG110) for potential use on NASA missions, including deep space missions, Mars rovers, and lunar ...
Schreiber, Jeffrey G., Thieme, Lanny G.
core   +1 more source

A Multifunctional Potent Lewis Acid for In Situ Formation of Poly‐Dioxolane Electrolytes Toward High‐Performance Quasi‐Solid State Lithium Metal Batteries

open access: yesAdvanced Science, EarlyView.
Conventional polymer electrolytes based on poly‐dioxolane (PDOL) suffer from low ion mobility and unstable interfaces. Here, AlCl3‐initiated in situ polymerized gel PDOL electrolytes (AGPE) form a facile Li+ conduction path and hybrid SEI layers, thus enabling high Li+ conductivity and uniform Li deposition.
Jaehyeong Yu   +6 more
wiley   +1 more source

Advanced Stirling Convertor (ASC-E2) Characterization Testing [PDF]

open access: yes
Testing has been conducted on Advanced Stirling Convertors (ASCs)-E2 at NASA Glenn Research Center in support of the Advanced Stirling Radioisotope Generator (ASRG) project.
Oriti, Salvatore M.   +1 more
core   +2 more sources

Defect Dynamics and Solution‐Processed Interconnects in Perovskite‐Organic Tandem Solar Cells

open access: yesAdvanced Science, EarlyView.
In this study, we identify the underlying cause of efficiency losses in WBG perovskites, which is ascribed to the presence of mobile defects distributed at surface regions. We further employ effective passivation agent with functional chemical groups to facilitate the healing of the mobile defects, thereby enhancing the VOC to 1.35 V and champion ...
Yingjie Hu   +12 more
wiley   +1 more source

Optimization of battery/ultra‐capacitor hybrid energy storage system for frequency response support in low‐inertia microgrid

open access: yesIET Power Electronics
Modern power system networks are under statutory obligations to integrate renewable energy sources (RES). The primary reason is to meet ever‐increasing energy demand and also to curtail environmental pollution by greenhouse gases.
Philemon Yegon, Mukhtiar Singh
doaj   +1 more source

Stirling Convertor Control for a Concept Rover at NASA Glenn Research Center [PDF]

open access: yes
The U.S. Department of Energy (DOE), Lockheed Martin Space Systems Company (LMSSC), Sunpower Inc., and NASA Glenn Research Center (GRC) have been developing an Advanced Stirling Radioisotope Generator (ASRG) for potential use as an electric power system ...
Blaze-Dugala, Gina M.
core   +1 more source

A Soft, Flexible Implant for Wireless Photothermal–Pyroelectric Neurostimulation

open access: yesAdvanced Science, EarlyView.
A replication strategy is used to enlarge the exposed surface area of barium titanate within flexible films with embedded carbon nanotubes, enabling efficient photothermal‐pyroelectric stimulation. Polar crystalline nanosheets show superior performance in guiding neural progenitor cells toward neuronal differentiation.
Jiang Wu   +7 more
wiley   +1 more source

Model predictive control of 3L‐NPC inverter to enhance fault ride through capability under unbalanced grid conditions

open access: yesIET Power Electronics
Unbalanced voltages are becoming increasingly common in distribution networks due to the growing integrations of distributed renewable energy resources as well as large loads such as electric vehicle chargers.
Cameron Smith   +3 more
doaj   +1 more source

Dual Josephson Impedance Bridge: Towards a Universal Bridge for Impedance Metrology. [PDF]

open access: yesMetrologia, 2020
Overney F   +6 more
europepmc   +1 more source

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