Results 71 to 80 of about 457,324 (213)
Strategic Entrepreneurship Journal, EarlyView.Abstract Research Summary Entrepreneurs in digital markets often introduce free versions of their paid products to boost their visibility. This freemium strategy involves a trade‐off between discovery and cannibalization. We study how feature‐based differentiation between the paid product and its free version shapes this trade‐off and its consequences ...
Joey van Angeren +2 more
wiley +1 more source
A Novel High-Power-Factor Single-Switch Electronic Ballast for Compact Fluorescent Lamps
Eletrônica de Potência, 2004 In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented.
Mario Ponce +4 more
doaj +1 more source
Controle de oscilações em sistemas comutados com aplicações em eletrônica de potência [PDF]
, 2006 Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho apresenta uma proposta para controle (geração) de oscilações em sistemas comutados.
Kaster, Maurício dos Santos
core
, 2012 The dc capacitors voltage unbalancing is the main technical drawback of a diode-clamped multilevel inverter (DCMLI), with more than three levels. A voltage-balancing circuit based on buck–boost chopper connected to the dc link of DCMLI is a reliable and ...
Ghosh, A. +5 more
core +1 more source
Improved Z Source Inverter Performance with Reduced Z-Source Voltage Stress and Current Mechanism Using Buck and Boost Approach [PDF]
, 2014 This paper presents a novel topology of Z-source inverter which can control the velocity of induction motor. The objective of our proposed topology is to improve the performance of Z-source inverter (ZSI) by reducing the voltage stress throughout the ...
, J. Shanmugapriyan, Dr. A. Chilambuchelvan, Dr. S. Vijayan
core +1 more source
Theorizing future phenomena: Metaverse, wearables, and humanoids
Strategic Entrepreneurship Journal, EarlyView.Abstract Research Summary We propose that entrepreneurship and strategy research can develop theory about phenomena of the future rather than only explain those of the past. Research has potential for practical relevance when researchers make claims towards applications to decisions practitioners have yet to make.
Andy Wu, Ronald Wang
wiley +1 more source
Single-Stage Single-Phase Isolated Full-Bridge Buck–Boost DC–AC Inverters
IEEE Open Journal of Industry ApplicationsThis article presents a simple high-frequency transformer (HFT) isolated buck–boost inverter designed for single-phase applications. The proposed HFT isolated inverter, with its full-bridge buck–boost topology, provides a wider voltage ...
Usman Ali Khan +2 more
doaj +1 more source
Journal of the Royal Anthropological Institute, EarlyView.Food and alcohol indulgence, along with tea‐drinking, gambling, and gossip, are integral to a characteristically Sichuanese ethos of ‘life enjoyment’ (xiangshou shenghuo). Beyond mere pleasure, sensory, ludic, and comic experiences temporarily strip participants of both their formal and subjective qualities.
Angel Nayden
wiley +1 more source
Energies, 2019 This paper presents a multi-input Ćuk-derived Buck-Boost voltage source inverter (CBBVSI) for Photovoltaic (PV) systems. The proposed topology consists of a single-stage DC-AC inverter that combines both DC-DC and DC-AC stages.
Eltaib Abdeen +4 more
doaj +1 more source
Economic Record, EarlyView.Economic indicators inform the assessment of economic slack for central banks, yet traditional output gap estimates are often limited by the substantial reporting lags of quarterly GDP. This paper extends a mixed‐frequency Bayesian vector autoregressive (MF‐BVAR) framework to the Australian economy by applying a multivariate Beveridge–Nelson (BN ...
Gilliane De Gorostiza‐Roudnitski
wiley +1 more source