Results 41 to 50 of about 5,374,212 (253)
System wide‐band oscillation analysis of fractional frequency offshore wind power systems
IET Generation, Transmission & DistributionThe fractional frequency offshore wind power system (FFOWPS) is a core technology for the long‐distance transmission and integration of the large‐scale offshore wind power.
Haitao Zhang +5 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada +7 more
wiley +1 more source
High step‐up direct ac‐ac boost converter with optimal component counts based on SEPIC
IET Power ElectronicsThis paper introduces a new direct step‐up ac‐ac converter designed based on the SEPIC. It provides a higher step‐up conversion ratio than other counterparts with valuable features like high efficiency, reasonable input and output total harmonic ...
Alireza Lahooti Eshkevari +3 more
doaj +1 more source
IET Control Theory & Applications, 2023 In accordance with the requirements of unmanned robot driving power supply for power supply reliability, strong power output, and portability, this paper introduces a design scheme for unmanned robot driving power supply on the basis of a flyback ...
Lingfeng Meng +6 more
doaj +1 more source
Fabrication Routes for Ionic Conducting Fiber Strain Sensors
Advanced Engineering Materials, EarlyView.Ionic conducting fiber strain sensors (ICFSs) offer compliant, textile‐integrable sensing. Thus far, the commercialization of ICFSs has been constrained by fiber fabrication routes. This review provides a fabrication‐centric analysis of ICFSs correlating processing strategies with material properties and scalability.
Leo John Kershaw +3 more
wiley +1 more source
IET Power Electronics, 2021 This paper examines a new topology of the AC‐AC Z‐source converter based on asymmetric Gama structure is proposed. The proposed converter has all the common features such as common ground between input and output, realizing the continuous input current ...
Seyyed Mohammad Javad Mousavi +3 more
doaj +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Stability enhancement of bi‐directional voltage source converters in modern power systems
IET Generation, Transmission & DistributionIn future modern power systems, reliability and resilience could be an extreme challenge caused by the stability issues of the bidirectional power converters (BPCs).
Mohamad Amin Ghasemi +2 more
doaj +1 more source
Variable weight coefficient MPC control strategy for qZSI‐VSG wind power grid‐connected system
IET Renewable Power Generation, 2023 Quasi‐Z source inverters (qZSI) can overcome the disadvantages of conventional wind power systems, because of achieving the balanced DC‐link voltage by using its boost ability. The majority of currently used control methods for conventional inverters are
Yang Zhang +3 more
doaj +1 more source
Minimizing coil power loss in a direct AC/AC converter-based contactless electric vehicle charger
, 2017 This paper explains an optimum load analysis to reduce power loss in a direct AC/AC converter-based contactless electric vehicle charger. The converter has a fewer number of bi-directional switches than a matrix converter and it uses a resonant circuit ...
Kyyrä, Jorma +3 more
core +1 more source