Results 71 to 80 of about 145,387 (305)

Investigation of Fault-Tolerant Capabilities in an Advanced Three-Level Active T-Type Converter [PDF]

, 2019
A novel fault-tolerant three-level power converter topology, named advanced three-level active T-Type (A3L-ATT) converter, is introduced to increase the reliability of multilevel power converters used in safety-critical applications.
He, Jiangbiao, Katebi, Ramin, Weise, Nathan   +2 more
core   +1 more source

Dynamics of Conductive/Cooling Fronts: Cloud Implosion and Thermal Solitons

, 1993
We investigate the evolution of interfaces among phases of the interstellar medium with different temperature. It is found that, for some initial conditions, the dynamical effects related to conductive fronts are very important even if radiation losses ...
Ferrara, Andrea, Shchekinov, Yuri
core   +1 more source

Formation of X-ray emitting stationary shocks in magnetized protostellar jets [PDF]

, 2016
X-ray observations of protostellar jets show evidence of strong shocks heating the plasma up to temperatures of a few million degrees. In some cases, the shocked features appear to be stationary. They are interpreted as shock diamonds.
Bonito, R., de Castro, A. I. Gómez, López-Santiago, J., Miceli, M., Orlando, S., Ustamujic, S.   +5 more
core   +4 more sources

Inhibiting stearoyl‐CoA desaturase suppresses bone metastatic prostate cancer by modulating cellular stress, mTOR signaling, and DNA damage response

FEBS Letters, EarlyView.
Bone metastasis in prostate cancer (PCa) patients is a clinical hurdle due to the poor understanding of the supportive bone microenvironment. Here, we identify stearoyl‐CoA desaturase (SCD) as a tumor‐promoting enzyme and potential therapeutic target in bone metastatic PCa.
Alexis Wilson, Mackenzie K Herroon, Shane Mecca, Laimar C Garmo, Jacob Lindquist, Shrila Rajendran, Steve M. Patrick, Izabela Podgorski   +7 more
wiley   +1 more source

A New Fully Soft‐Switching High Step‐Up Interleaved Converter for Optimal Efficiency

IET Power Electronics
A novel fully soft‐switching interleaved high step‐up converter is introduced in this paper. The suggested converter achieves high voltage gain using coupled inductors (CI) and a voltage multiplier cell (VMC).
Arsalan Erfani, Majid Delshad, Ehsan Adib   +2 more
doaj   +1 more source

A mixed finite-element formulation for the modal analysis of electromagnetic waveguides featuring improved low-frequency resolution of transmission line modes [PDF]

Advances in Radio Science, 2014
This paper presents an improved finite-element formulation for axially uniform electromagnetic waveguides. It allows for both dielectric and conduction losses and covers the entire range from optics down to the static limit.
R. Baltes, J. Al Ahmar, O. Farle, R. Dyczij-Edlinger   +3 more
doaj   +1 more source

Mass accretion to young stars triggered by flaring activity in circumstellar disks [PDF]

, 2011
Young low-mass stars are characterized by ejection of collimated outflows and by circumstellar disks which they interact with through accretion of mass.
Aarnio, Alexiades, Anders, Andrea Mignone, Armitage, Audard, Balbus, Balbus, Balbus, Balsara, Bessolaz, Bisnovatyi-Kogan, Bodo, Borkowski, Bouvier, Brandenburg, Brown, Cowie, Curran, Fabio Reale, Fadeyev, Favata, Feigelson, Fromang, Getman, Giovanni Peres, Giuliani, Gregory, Hartmann, Hawley, Hawley, Hayashi, Herczeg, Hirose, Hujeirat, Hujeirat, Johns-Krull, Kashyap, King, Koenigl, Kulkarni, Mignone, Mohanty, Muzerolle, Natta, Orlando, Orlando, Orlando, Orlando, Orlando, Powell, Reale, Reale, Reale, Reale, Romanova, Romanova, Romanova, Salvatore Orlando, Shakura, Shu, Smith, Spitzer, Tanaka, Telleschi, Wolk, Wolk, Zanni   +67 more
core   +3 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Analysing the Effects of Switching, Conduction and Thermal Losses on IGBT Performance in Boost DC–DC Converters for Photovoltaic Systems

Al-Khawarizmi Engineering Journal
This study examines the thermal and electrical characteristics of insulated gate bipolar transistors (IGBTs) in boost direct current (DC)–DC converters used in photovoltaic systems with respect to how switching and conduction losses vary under different
Muhanad Almawlawe
doaj   +1 more source

A high step‐up DC‐DC converter based on three‐winding coupled inductor and voltage multiplier for renewable energy applications

IET Power Electronics, 2023
A high step‐up DC‐DC converter for renewable energy applications is proposed. Based on a three‐winding coupled inductor and two voltage multiplier cells, the proposed converter obtains a high voltage conversion ratio.
Peng Luo, Jie He, Huansheng Ji, Fuwei Li, Haoyu Jiang, Limei Shi, Guanghao Chen   +6 more
doaj   +1 more source