Results 51 to 60 of about 120,595 (228)

Morphophysiological dynamics of the proximal post‐testicular ducts in Crotalus durissus Linnaeus, 1758 (Squamata: Viperidae)

The Anatomical Record, EarlyView.
Abstract The organization and function of reptilian excurrent ducts remain poorly characterized, particularly in Neotropical snakes. We provide the first integrative morphological, histochemical, immunohistochemical, and ultrastructural analysis of the proximal post‐testicular ducts of Crotalus durissus across reproductive stages.
Flávia Cappuccio de Resende, Gustavo Caldeira Cotta, Clara d' Ávila Fonseca Paiva de Paula Freitas, Leonardo Carvalho, Heloísa Helena Marques Oliveira, Victória Gomes Carvalho Silva, Lívia de Fátima Moreira Silva, Luciana Maria Silva, Samyra Maria dos Santos Nassif Lacerda, Guilherme Mattos Jardim Costa   +9 more
wiley   +1 more source

A Novel Control Scheme for Traction Inverters in Electric Vehicles With an Optimal Efficiency Across the Entire Speed Range

IEEE Access
In the context of the electric vehicle (EV) industry, multi-level inverters (MLIs) have garnered increasing attention due to their potential to harness the advantages of higher DC link voltages.
Yousefreza Jafarian Jelodar, Omid Salari, Mohamed Z. Youssef, Javad Ebrahimi, Alireza Bakhshai   +4 more
doaj   +1 more source

Multi-Step Predictive Current Control for NPC Grid-Connected Inverter

IEEE Access, 2019
Aiming at improving the quality of output current when the inverter is connected to the grid, this paper proposes a control strategy of neutral point clamped (NPC) grid-connected inverter based on radial basis function neural network (RBFNN) multi-step ...
Yunjun Yu, Xianzheng Wang
doaj   +1 more source

Advances in Unraveling the Structure and Sodium‐Ion Storage Behaviors of Hard Carbons: From Basic to Extended Characterization Techniques

Carbon Energy, EarlyView.
This review is devoted to introducing the structures and sodium storage mechanisms of hard carbon materials and analyzing the correlated advanced characterization techniques. The advanced characterization techniques are categorized based on the classification of signal sources.
Jiechang Gao, Dongqi Zhang, Guanglei Qiu, Ye Han, Haijun Zhang, Yajie Liu, Zhixin Tai   +6 more
wiley   +1 more source

A Front end Switched Rectifier DC Source for Neutral Point Balancing of A NPC Three-Level Inverter for The Full Modulation Range [PDF]

, 2008
A switched DC voltage three level NPC is proposed in this paper to eliminate capacitor balancing problems in conventional three-level Neutral Point Clamped (NPC) inverter. The proposed configuration requires only one DC link with a voltage V-dc/2,
K. Siva kumar, Keith Corzine, De, Sukumar, Kumar, K. Siva, Mondal, Gopal, Sukumar De, K. Gopakumar, Gopakumar, K., Gopal Mondal, Corzine, Keith   +9 more
core   +1 more source

A three level NPC inverter fault detection and identification using voltage vector residual evaluation based on current path tracking method

e-Prime: Advances in Electrical Engineering, Electronics and Energy
This research describes open circuit detection and fault location for active 3-level NPC (neutral point clamped) inverter switches during normal and connected to the neutral point.
Selvakumar P, Muthukumaran G
doaj   +1 more source

Robust vector control of SynRM using a three-level NPC inverter [PDF]

EPJ Web of Conferences
This research aims to evolve a robust vector command of a 3-phase synchronous reluctance motor (SynRM). The conventional 2-level inverter is replaced by a 3-level neutral-point-clamped (NPC) inverter.
Fahassa Chaymae, Abbou Ahmed, Zahraoui Yassine   +2 more
doaj   +1 more source

Model Predictive Control Method With NP Voltage Balance by Offset Voltage Injection for Three-Phase Three-Level NPC Inverter

IEEE Access, 2020
This paper proposes a predictive control method with offset voltage injection for achieving a neutral point (NP) voltage balance of three-phase three-level neutral point clamped (NPC) inverter, without employing a weighting factor. In order to ensure the
Eun-Su Jun, Minh Hoang Nguyen, Sang-Shin Kwak   +2 more
doaj   +1 more source

A proteomic investigation of forebrain regeneration in the leopard gecko (Eublepharis macularius)

Developmental Dynamics, EarlyView.
Our investigation reveals ontogenetic, injury‐ and regeneration‐associated proteomic changes in the leopard gecko forebrain. Abstract Background The ability to replace lost or damaged neurons following an injury is termed reactive neurogenesis. Although reactive neurogenesis has been reported in several lizard species, the molecular mechanisms ...
Alexandra I. Noble, Samantha L. Payne, Matthew K. Vickaryous   +2 more
wiley   +1 more source

Design and development of neutral-point clamped (NPC) inverter

, 2020
Nowadays, the application of renewable energy sources is emerging in generating electricity in response to the energy shortage and environmental protection.
Shan, Yuqing
core