Results 141 to 150 of about 152,057 (309)

Development of high frequency low weight power magnetics for aerospace power systems [PDF]

open access: yes
A dominant design consideration in the development of space type power mangetic devices is the application of reliable thermal control methods to prevent device failure which is due to excessive temperature rises and hot temperatures in critical areas ...
Schwarze, G. E.
core   +1 more source

Microglial dynamics and ferroptosis induction in human iPSC‐derived neuron–astrocyte–microglia tri‐cultures

open access: yesFEBS Open Bio, EarlyView.
A tri‐culture of iPSC‐derived neurons, astrocytes, and microglia treated with ferroptosis inducers as an Induced ferroptosis model was characterized by scRNA‐seq, cell survival, and cytokine release assays. This analysis revealed diverse microglial transcriptomic changes, indicating that the system captures key aspects of the complex cellular ...
Hongmei Lisa Li   +6 more
wiley   +1 more source

Broadband Transfer Characteristics of DC Electronic Current Transformers

open access: yesIEEE Access
The frequent operation of the switching devices inside the converter valve (mainly composed of thyristors) and other equipment in the converter station of ultra-high voltage direct current (UHVDC) transmission system generates a large number of high ...
Songyu Yang   +3 more
doaj   +1 more source

Apparatus for measuring current flow Patent [PDF]

open access: yes, 1969
Electric current measuring apparatus design including saturable core transformer and energy storage device to avoid magnetizing current errors from transformer output ...
Paulkovich, J.
core   +1 more source

Anchorage‐independent and faster growth in clonal population from UV‐irradiated NER‐deficient cells

open access: yesFEBS Open Bio, EarlyView.
UV‐irradiated cells expressing a DDB2 mutant protein unable to interact with PCNA (DDB2PCNA‐) form clones able to grow without anchorage. Different experimental approaches reveal heterogeneity in cell cycle regulation and drug response within these clones, emphasizing the crucial role of the DDB2‐PCNA interaction in preventing cellular transformation ...
Paola Perucca   +6 more
wiley   +1 more source

Power Electronic Transformer Using DC-DC Converter Based on Energy Injection Control

open access: yesKongzhi Yu Xinxi Jishu, 2017
In order to improve the power density and efficiency of power electronic transformer, this paper presented a power electronic transformer using DC-DC converter based on energy injection control.
ZHAO Ziyi, SU Mei, ZHU Qi, WANG Hui
doaj  

Partial Discharge in Electronic Equipments [PDF]

open access: yes, 2009
Tato disertační práce se věnuje studiu částečných výbojů (PD) způsobených poklesem spolehlivosti a životnosti elektronických zařízení a systémů. Diagnostika PD je dnes známá metoda pro vysoké napětí u vysoko-výkonných zařízení.
Mammadov, Anar
core  

High power - high frequency transformer design constrains

open access: yesTransport and Communications, 2023
Marek Franko   +3 more
openaire   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

Power supply for carbon dioxide lasers [PDF]

open access: yes, 1973
An improved ac power supply for a CO2 laser which eliminates the need for ballast resistors to excite a stable discharge is disclosed. The method involves the connection of an inductance in front of the rectifier. This procedure provides a nondissapative
Schiffner, G.
core   +1 more source

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