Results 31 to 40 of about 24,705,416 (306)

Impedance Modeling and Stability Analysis of VSG Controlled Grid-Connected Converters with Cascaded Inner Control Loop

Energies, 2020
This paper develops the impedance models of grid-connected converters under the virtual synchronous generator (VSG) strategy with a cascaded inner control loop and analyzes the system stability of VSG controlled converters with different kinds of weak ...
Yunyang Xu, Heng Nian, Yangming Wang, Dan Sun   +3 more
doaj   +1 more source

Effective impedance modeling of metamaterial structures [PDF]

Journal of the Optical Society of America A, 2016
We present methods for retrieving the effective impedance of metamaterials from the Fresnel reflection coefficients at the interface between two semi-infinite media. The derivation involves the projection of rigorous modal expansions onto the dominant modes of the two semi-infinite media.
Kokou B, Dossou, Christopher G, Poulton, Lindsay C, Botten   +2 more
openaire   +3 more sources

Clinical and Biological Features of Response in Resistant Neuroblastoma to 131I‐Metaiodobenzylguanidine Radiotherapy in the Anti‐GD2 Immunotherapy Era

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background 131I‐metaiodobenzylguanidine (131I‐MIBG) radiotherapy is a key treatment for relapsed and refractory (R/R) neuroblastoma (NB). Patients with R/R disease treated in the modern era are increasingly exposed to anti‐GD2 immunotherapy, which exerts selective pressure and may modify both tumor cell state and microenvironment.
Benjamin J. Lerman, Katherine K. Matthay, Fabienne Hollinger, Catriona Black, Ann A. Lazar, Miguel Pampaloni, Steven G. DuBois, Kieuhoa T. Vo   +7 more
wiley   +1 more source

Stability Analysis Method for Three-Phase Multi-Functional Grid-Connected Inverters With Unbalanced Local Loads Considering the Active Imbalance Compensation

IEEE Access, 2018
This paper proposes a small-signal stability analysis method for the three-phase multifunctional grid-connected inverter (MFGCI) system with an unbalanced local load based on impedance modeling.
Wei Jin, Yongli Li, Guangyu Sun, Xiaolong Chen, Yan Gao   +4 more
doaj   +1 more source

A Novel Fractal Contact-Electromechanical Impedance Model for Quantitative Monitoring of Bolted Joint Looseness

IEEE Access, 2018
Bolted joint are among the key components that enable the robust assembly of a wide variety of structures. However, due to wear and tear over time, bolted joint may loosen, and if not detected in its early stages, can lead to devastating results.
Furui Wang, S. Ho, L. Huo, G. Song
semanticscholar   +1 more source

On the use of a stress-impedance model to describe sound propagation in a lined duct with grazing flow. [PDF]

Journal of the Acoustical Society of America, 2017
With flow, the acoustic effect of a locally reacting lined wall cannot be described by a single quantity independent of the incident wave, such as a wall impedance. At least two quantities, intrinsic to the liner and to the flow, are required to describe
Y. Aurégan
semanticscholar   +1 more source

Deep Sequencing of FLT3‐ITD Enables Response Evaluation and Post‐Treatment Monitoring in Childhood AML: An Exploratory Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An internal tandem duplication in the gene encoding Fms‐like tyrosine kinase 3 (FLT3‐ITD) is associated with high relapse risk and poor prognosis in acute myeloid leukemia (AML) and plays a crucial role in treatment decisions. Measurable residual disease (MRD) analysis of FLT3‐ITD during and after treatment has shown prognostic ...
Sofie Johansson Alm, Bea Tornberg, Erik Delsing Malmberg, Henrik Hasle, Kristian Løvvik Juul‐Dam, Lars Palmqvist, Borhan R. Saeed, Giti Shah Barkhordar, Anastasia Soboli, Anna Staffas, Jonas Abrahamsson, Linda Fogelstrand   +11 more
wiley   +1 more source

Evaluation and Comparison of Small-Signal Characteristics of Grid-Forming Converter Systems in Two Different Reference Frames

IEEE Open Journal of Industry Applications
The increasing penetration of converter-interfaced generation units results in a frequency-weak power system characterized by decreasing system inertia. Consequently, the angular frequency of the power system may deviate from its nominal value, with its ...
Anant Narula, Massimo Bongiorno, Paolo Mattavelli, Mebtu Beza, Jan R. Svensson, Wentao Liu   +5 more
doaj   +1 more source

Impedance method with interpolation applied to skin impedance modeling [PDF]

Revista Brasileira de Engenharia Biomédica, 2011
A new approach based on the use of interpolation for the electric potential is proposed to increase the accuracy of field calculation using the impedance method. In each voxel of a three-dimensional grid, the electric field is calculated from the potential interpolation function and is used as a solution of the continuity equation.
openaire   +1 more source

The Role of Hematopoietic Cell Transplantation in Ataxia‐Telangiectasia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Ataxia‐telangiectasia (A‐T) is a DNA repair disorder characterized by neurodegeneration, immunodeficiency, and cancer predisposition. Hematopoietic cell transplantation (HCT) is an established therapy in related disorders such as Fanconi anemia (FA) and Nijmegen breakage syndrome (NBS), but its role in A‐T is unclear.
Laila Alkhouli, Seth Rotz, Masatoshi Takagi, Richa Sharma   +3 more
wiley   +1 more source