Results 81 to 90 of about 2,781 (260)

Weak Coupling Effects in the PLL Modes of Grid‐Following PMSG Wind Power Systems

IET Renewable Power Generation
Small‐signal synchronisation stability is a critical issue of grid‐connected permanent magnet synchronous generator (PMSG) wind power systems employing grid‐following voltage source converters (VSCs).
Xumeng Cui, Lei Chen, Kaiyuan Hou, Yong Min, Kefei Wang, Fei Xu   +5 more
doaj   +1 more source

High-voltage switch-mode assisted linear amplifier based voltage source for dielectric low frequency-domain spectroscopy measurements

The Journal of Engineering, 2019
This study presents a switch-mode assisted linear amplifier (SMALA) designed for use as a frequency-domain spectroscopy (FDS) excitation voltage source for the diagnostic testing of oil/paper insulation systems in large power transformers.
Shawn D. Nielsen, Geoffrey R. Walker, Geoffrey R. Walker   +2 more
doaj   +1 more source

Characterization of the Advanced Stirling Radioisotope Generator Engineering Unit 2 [PDF]

Significant progress was made developing the Advanced Stirling Radioisotope Generator (ASRG) 140-W radioisotope power system. While the ASRG flight development project has ended, the hardware that was designed and built under the project is continuing to
Lewandowski, Edward J., Oriti, Salvatore M., Schifer, Niholas A.   +2 more
core   +1 more source

Extended Operation of Stirling Convertors at NASA Glenn Research Center [PDF]

, 2011
Glenn Research Center (GRC) is supporting life and reliability database for free-piston Stirilng conversion via extended convertor operation Ongoing convertor operation: 18 convertors (4 TDCs from Infinia, 14 ASCs from Sunpower).
Oriti, Salvatore
core   +1 more source

Targeting TNBC: core–shell polycationic polyurea dendrimers with inherent anticancer activity

FEBS Open Bio, EarlyView.
Core–shell polycationic PURE dendrimers were tested in TNBC‐derived tumor models. Both formulations selectively targeted TNBC and effectively reduced tumor volume. PUREG4‐OEI48 suppressed tumor growth without detectable toxicity, whereas PUREG4‐OCEI24, despite showing efficacy, induced hepatic toxicity.
Adriana Cruz, Bruna Abreu, Cindy Mendes, Catarina Freitas‐Dias, Filipe Gonçalves, Fernanda Silva, José Ramalho, Saudade André, Vasco D. B. Bonifácio, Jacinta Serpa   +9 more
wiley   +1 more source

Corrected complex torque coefficient method for synchronization stability analysis of grid‐connected VSC

IET Renewable Power Generation
Sub‐synchronous oscillation of grid‐connected voltage source converter (VSC) dominated by phase locked loop (PLL) is an important stability issue in nowadays power systems.
Boyuan Zhao, Lei Chen, Yong Min, Yalou Li, Shiyun Xu   +4 more
doaj   +1 more source

Review of low voltage ride-through technology of doubly-fed induction generator

The Journal of Engineering, 2019
In recent years, with the increasing of wind power development, the demand for low voltage ride-through (LVRT) technology was proposed to ensure the safe and reliable operation of the power system.
Lele Niu, Xiao Wang, Linlin Wu, Feng Yan, Man Xu   +4 more
doaj   +1 more source

Preliminary design of a mobile lunar power supply [PDF]

A preliminary design for a Stirling isotope power system for use as a mobile lunar power supply is presented. Performance and mass of the components required for the system are estimated.
Fulmer, Christopher R., Kenny, Barbara H., Schmitz, Paul C.   +2 more
core   +1 more source

A solenoidal electron spectrometer for a precision measurement of the neutron $\beta$-asymmetry with ultracold neutrons

, 2008
We describe an electron spectrometer designed for a precision measurement of the neutron $\beta$-asymmetry with spin-polarized ultracold neutrons. The spectrometer consists of a 1.0-Tesla solenoidal field with two identical multiwire proportional chamber
Abele, Abele, Abele, B. Plaster, B. Tipton, B.W. Filippone, Czarnecki, D. Harrison, Gardner, Hardy, Hardy, Ito, J. Hsiao, J. Liu, J. Yuan, J.W. Martin, Jackson, Jackson, Marciano, Martin, Martin, Morris, Nico, R. Carr, Saunders, Schumann, Severijns, T.M. Ito, Tabata, Wilkinson   +29 more
core   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source