Results 91 to 100 of about 457,374 (249)

Trauma in humanitarian operations: A replication and extension of Brooks et al. (2023)

Decision Sciences, EarlyView.
Abstract We develop a two‐part study that first performs a methods‐only replication of Brooks, Shaheen, and Dobrzykowski's study of trauma in humanitarian operations and then extends the model to investigate secondary trauma. Using data from 442 volunteer humanitarian workers collected through a scenario‐based vignette experiment, we replicate the ...
Iana Jackson, Llord Brooks, David D. Dobrzykowski   +2 more
wiley   +1 more source

Single stage buck-boost DC-AC neutral point clamped inverter

, 2012
This paper proposes a new single stage buck-boost DC-AC neutral point clamped inverter topology which integrates the cascaded configurations of recently introduced inductor-capacitor-capacitor-transformer impedance source network (by Adamowicz) and ...
Mo, Wei, Loh, Poh Chiang, Loh Poh Chiang, Wei, Mo, Andrew, Blaabjerg, Frede, Andrew, A., Blaabjerg, Frede; id_orcid, Mo Wei, Frede Blaabjerg   +9 more
core   +1 more source

Enhancement of Motor Skill Development in Dental Education Through an Art‐Based Course, Including the COVID‐19 Period

European Journal of Dental Education, EarlyView.
ABSTRACT Background Modern higher education requires a redefinition of pedagogical objectives to meet the evolving cognitive and perceptual demands of contemporary students. One such emerging objective is the cultivation of visual perceptions. Generational differences suggest that current students possess distinct cognitive profiles and learning ...
Adrienne Fazekas, Balazs Sandor, Gyula Marada, Timea Dergez, Krisztian Katona, Andrea Radacsi, Michael Rakan Haddad, Ildiko Szanto   +7 more
wiley   +1 more source

A Novel Single-Phase Flying-Inductor Buck-Boost Inverter

, 2019
In this paper a new single-phase flying-inductor buck-boost inverter is proposed. The inverter operates on the principle of flying-inductor, and it has the capability to buck or boost the input voltage without increasing the number of required components.
Chevinly, Javad Sadeghi, Forouzesh, Mojtaba, Siwakoti, Yam Prasad, Blaabjerg, Frede; id_orcid   +3 more
core  

Unprincipled Principals in the Accountability Chain: Autonomy and Political Control Within Tax Administration in a Developing Country Context

Financial Accountability &Management, EarlyView.
ABSTRACT SDG 16 emphasizes the need for accountable institutions, often based on the assumption that public officials are accountable to politicians, who in turn are accountable to citizens. However, in many developing countries, neopatrimonial governance can weaken this accountability chain, as politicians themselves may act as “unprincipled ...
Edidiong Bassey, Emer Mulligan
wiley   +1 more source

Investigation of multimodule buck–boost inverter-based HVDC transmission system

The Journal of Engineering, 2015
In high voltage direct current (HVDC) systems, the semiconductor devices have to be connected in series to obtain the required high-voltage ratings.
Ahmed A. Elserougi, Ahmed Mohamed Massoud, Ayman Samy Abdel-khalik, Shehab Ahmed, Shehab Ahmed   +4 more
doaj   +1 more source

Coupled-Inductor-Based Buck-Boost Inverter with Leakage Current Suppression Capability [PDF]

This article presents a novel transformer-less single-stage buck-boost inverter (SSBBI) utilizing coupled inductors and its dual-mode time-sharing control method.
Wu, Weimin, Orabi, Mohamed, Wang, Houqing, Blaabjerg, Frede; id_orcid, Xu, Yunfeng, Yuan, Liang   +5 more
core   +1 more source

Firm Size and Momentum Returns: The Roles of Analyst Coverage and Herding Behavior

Financial Markets, Institutions &Instruments, EarlyView.
ABSTRACT Momentum strategies have historically generated excess returns, but their effectiveness noticeably deteriorated in the post‐pandemic period, especially in 2022–23. In this paper, we explore how changes in investor attention during and after the COVID‐19 pandemic may have altered the performance of momentum strategies.
Yiyi Zhang, He He, Qian Guo, Jing Chen
wiley   +1 more source

Modelling and Optimal Design of a Multifunctional Single-Stage Buck-Boost Differential Inverter

IEEE Open Journal of Power Electronics
In this paper, a single-stage buck-boost differential inverter is optimally designed for applications with varying input DC voltage (e.g., photovoltaics and fuel cell systems).
Rajesh Rajamony, Sheng Wang, Wenlong Ming   +2 more
doaj   +1 more source

Enhancing Solar PV Performance: Advanced Converters for Efficient Green Energy Conversion and Grid Compatibility [PDF]

E3S Web of Conferences
This paper delves into the vital role of converters in enhancing the efficiency and reliability of solar photovoltaic (PV) systems. With the escalating demand for renewable energy sources, solar PV systems emerge as a sustainable solution, necessitating ...
Vishwakarma Neelesh, Vittalaiah A., Reddy N.V. Uma, Sobti Rajeev, Kumar Ashwani, Mohammad Q., Rao A. Shubhangi   +6 more
doaj   +1 more source