Results 131 to 140 of about 5,431,466 (351)
电力工程技术In this paper, the control strategy of modular multilevel matrix converter (M3C) is studied in the scenario of fractional frequency offshore wind power.
HAN Huachun +4 more
doaj +1 more source
Analysis of transistor and snubber turn-off dynamics in high-frequency high-voltage high-power converters [PDF]
Dc to dc converters which operate reliably and efficiently at switching frequencies high enough to effect substantial reductions in the size and weight of converter energy storage elements are studied. A two winding current or voltage stepup (buck boost)
Owen, H. A., Jr. +2 more
core +1 more source
Estimation on the switching losses at IGBT bridges power converter [PDF]
, 2011 . In the paper estimation on the switching losses at IGBT bridge converter with the output serial resonant load is given. The converter works on frequency higher than resonant frequency and supports the work of IGBT transistors in the bridge with zero ...
Cundev, Dobri +2 more
core
Molecular Oncology, EarlyView.To integrate multiple transcriptomics data with severe batch effects for identifying MB subtypes, we developed a novel and accurate computational method named RaMBat, which leveraged subtype‐specific gene expression ranking information instead of absolute gene expression levels to address batch effects of diverse data sources.
Mengtao Sun, Jieqiong Wang, Shibiao Wan
wiley +1 more source
State-plane trajectories used to observe and control the behavior of a voltage step-up dc-to-dc converter [PDF]
State-plane analysis techniques are employed to study the voltage step up energy storage dc-to-dc converter. Within this framework, an example converter operating under the influence of a constant on time and a constant frequency controller is examined ...
Burns, W. W., III, Wilson, T. G.
core +1 more source
Molecular Oncology, EarlyView.Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova +25 more
wiley +1 more source
Harmonic Klystron Frequency Converter
IEEE Transactions on Electron DevicesA new principle for the design of frequency converters, operating at significantly higher power and efficiency than previous devices, is described in this article. The presented solution is implemented as a particular klystron topology for which a new design criterion is formulated through analytical expressions and a specific design procedure.
Alberto Leggieri +5 more
openaire +3 more sources
Molecular Oncology, EarlyView.Loss of the miR‐214/199a cluster is associated with recurrence in ovarian cancer. Engineered small extracellular vesicles (m214‐sEVs) elevate miR‐214‐3p/miR‐199a‐5p in tumor cells, suppress β‐catenin, TLR4, and YKT6 signaling, reprogram tumor‐derived sEV cargo, reduce chemoresistance and migration, and enhance carboplatin efficacy and survival in ...
Weida Wang +12 more
wiley +1 more source
Gong-kuang zidonghua, 2012 In view of problem of error power-off of safety monitoring and control system of underground working face caused by electromagnetic interference produced by frequency converter of a Coal Mine, the paper analyzed interference phenomenon and causes of ...
GUO Jia
doaj
The Application Three-phase to Single-phase Z-Source Matrix Converter in Wind Turbine [PDF]
Journal of Intelligent Procedures in Electrical Technology, 2017 In this paper a new idea of direct three-phase to single-phase Z-source matrix converter (impedance-source matrix converter) applicable in stand-alone wind turbine is introduced.
vahid asadi rad +2 more
doaj