Results 131 to 140 of about 4,688 (220)

Unidade retificadora de alta performance 1500W-25A, para telecomunicações [PDF]

, 1993
Dissertação (mestrado) Universidade Federal de Santa Catarina, Centro TecnologicoEste trabalho enfatiza o desenvolvimento de uma unidade retificadora em alta freqüência para aplicação em centrais telefônicas com capacidade de 1500W.
Gaidzinski, Paulo Roberto
core  

Ch‐Ch‐Ch‐Ch‐Changes: The Impact of Supply Base Growth, Contraction, and Turnover on Firm Innovation

Journal of Operations Management, Volume 72, Issue 4, Page 606-626, June 2026.
ABSTRACT Modern supply chains are experiencing more disturbances due to regulatory shifts, rising sustainability standards, emerging or declining markets, and disruption to critical inputs. Some firms react by strengthening existing supplier partnerships to resist changes, while others reconfigure relationships with suppliers to embrace changes ...
Jordan M. Barker, Ellie C. Falcone, Yang Sophie Yang‐Sun, Tingting Yan   +3 more
wiley   +1 more source

A Comprehensive Multistage Average Controller for Trajectory Tracking in Solar‐Powered Mobile Robots: Analysis of Actuator‐Driver and Power Stage Integration

International Journal of Mechanical System Dynamics, Volume 6, Issue 2, Page 224-246, June 2026.
ABSTRACT This work addresses the challenge of bidirectional trajectory tracking in solar‐powered wheeled mobile robots (WMRs), considering the mechanical structure, actuator‐driver, and power stage subsystems. Notably, this is the first study to explicitly model and control the actuator‐driver subsystem within this context. The proposed solution relies
Benjamin Natanael Santiago‐Nogales, Julio Cesar Ordaz‐Dehesa, Ramón Silva‐Ortigoza, Erik Reyes‐Reyes, J. Martín Alba‐Martínez, Juan Eduardo Velázquez‐Velázquez, José Rafael García‐Sánchez, Magdalena Marciano‐Melchor, Hind Taud   +8 more
wiley   +1 more source

Assessment of Equivalent Noise Source Approach for EMI Simulations of Boost Converter [PDF]

, 2009
Vuttipon Tarateeraseth, Tarateeraseth, V., Ivan A. Maio, Flavio G. Canavero, Tarateeraseth V., Maio, Ivano Adolfo, Canavero, Flavio   +6 more
core   +1 more source

A Novel Transformer-less Buck-Boost Inverter with Coupled Inductor for Photovoltaic Systems

Among several proposed inverter topologies, the improved inverter based on the Aalborg inverter which can track the maximum energy from two independent photovoltaic arrays was proposed as a high efficiency, high power density, and dual-mode time-sharing ...
Wu, Weimin, Orabi, Mohamed, Wang, Houqing, Blaabjerg, Frede; id_orcid, Xu, Yunfeng, Yuan, Liang   +5 more
core   +1 more source

Strategic positioning and accelerating regulatory clearance for new ventures

Strategic Management Journal, Volume 47, Issue 6, Page 1730-1763, June 2026.
Abstract Research Summary How do new ventures strategically position their products to accelerate regulatory clearance? We investigate this question in the medical device industry, where regulatory clearance is a prerequisite for market entry. We examine 239 new firms' 510(k) device clearances by the FDA between 2001 and 2019.
Emily Cox Pahnke, Tiona Zuzul, Michael Howard   +2 more
wiley   +1 more source

A New Dual-input Buck-boost Inverter with Input Power Balance

Photovoltaic inverters (PV) undertake the critical task of converting the DC power output from PV cells into the AC power required by the grid. In this paper, a dual-input Buck-boost inverter (DIBBI) is innovatively proposed, which combines the Buck ...
Wu, Weimin, Zhang, Jian, Orabi, Mohamed, Blaabjerg, Frede; id_orcid, Xu, Yunfeng, Yuan, Liang   +5 more
core   +1 more source

The United States Magnetotelluric Array and the National Impedance Map

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract The United States Magnetotelluric Array (USMTArray) data set, collected in the years 2006–2024, consists of more than 1,700 long‐period magnetotelluric stations covering the entirety of the contiguous United States on a quasi‐regular 70 km grid.
Anna Kelbert, Paul A. Bedrosian, Adam Schultz, Gary D. Egbert, Louise Pellerin, Jeffrey J. Love, Andrew Frassetto, Benjamin S. Murphy   +7 more
wiley   +1 more source

TD3 Deep Reinforcement Learning Control Approach for a DC‐DC Multiport Converter Used in Low‐Power EV Applications

IET Smart Energy Systems, Volume 2, Issue 2, Page 158-169, June 2026.
A TD3‐based deep reinforcement learning controller is developed for a multiport converter in low‐power EV applications. The data‐driven, model‐free strategy improves dynamic performance under constant power load destabilisations and demonstrates advanced intelligent control suited for next‐generation smart and integrated energy systems.
Amirhossein Hosseini, Saeed Hosseinnataj, Ali Arzani   +2 more
wiley   +1 more source

Clearing the Air: How Fine Particulate Matter Regulations Reshape Farmland Values in U.S. Corn and Soybean Regions

Journal of Agricultural Economics, Volume 77, Issue 2, Page 322-355, June 2026.
ABSTRACT We investigate the impact of air quality regulations targeting fine particulate matter (PM2.5) on farmland values in corn and soybean producing counties in the United States over the period 1997–2022. Using self‐reported farmland value data from the Agricultural Census and county‐level pollution classifications provided by the Environmental ...
Cécile Couharde, Rémi Generoso
wiley   +1 more source