Results 71 to 80 of about 242,126 (310)
Virtual Impedance Shaping for the Bus Conversion System in the Hybrid AC/DC Grid
IEEE Open Journal of Power ElectronicsThe bus conversion system in the hybrid AC/DC grid is usually composed of a three-phase interlinking converter and a DC-side input filter. The impedance interaction between the converter and the input filter may cause instability of the DC-link ...
Sicong Jin +5 more
doaj +1 more source
Transistor biased amplifier minimizes diode discriminator threshold attenuation [PDF]
, 1967 Transistor biased amplifier has a biased diode discriminator driven by a high impedance /several megohms/ current source, rather than a voltage source with several hundred ohms output impedance. This high impedance input arrangement makes the incremental
Larsen, R. N.
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Molecular Oncology, EarlyView.Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen +11 more
wiley +1 more source
A Hybrid Approach to Joint Estimation of Channel and Antenna impedance
, 2018 This paper considers a hybrid approach to joint estimation of channel information and antenna impedance, for single-input, single-output channels. Based on observation of training sequences via synchronously switched load at the receiver, we derive joint
Hughes, Brian L., Wu, Shaohan
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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
IEEE AccessPower factor correction (PFC) boost converters are widely used for single-phase industrial ac-dc applications, where simulation is typically used for design and verification. However, running simulations with an ac source at the line frequency (50-60 Hz)
Katherine A. Kim, Thomas G. Wilson
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Amplifier for measuring low-level signals in the presence of high common mode voltage [PDF]
, 1985 A high common mode rejection differential amplifier wherein two serially arranged Darlington amplifier stages are employed and any common mode voltage is divided between them by a resistance network.
Lukens, F. E.
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Molecular Oncology, EarlyView.Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch +13 more
wiley +1 more source
Impedance stability analysis and impedance remodelling of matrix converter grid-connected system
The Journal of Engineering, 2020 Matrix converter has become one of the research hotspots of power electronic converter due to its excellent input and output characteristics and adjustable power factor.
Rutian Wang, Guoqing He, Bo Zhang
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Generalized four-point characterization method for resistive and capacitive contacts [PDF]
, 2011 In this paper, a four-point characterization method is developed for resistive samples connected to either resistive or capacitive contacts. Provided the circuit equivalent of the complete measurement system is known including coaxial cable and connector
Brian S. Kim +8 more
core +2 more sources