Results 81 to 90 of about 96,935 (306)

Using special APF to improve harmonic rate of MRT power system

Journal of Low Frequency Noise, Vibration and Active Control
Most APFs use improved designs of active power filters of half-bridge and full-bridge circuits, their advantages and disadvantages are compared. International journals often use this filter circuit for small circuit boards.
Chien-Hsu Chen, Li-Wei Ko
doaj   +1 more source

Analysis of two level and three level inverters [PDF]

, 2010
The power electronics device which converts DC power to AC power at required output voltage and frequency level is known as inverter. Inverters can be broadly classified into single level inverter and multilevel inverter.
Mohanty, Piyus, Sahoo, Saransh
core  

Fluid Forces Control Structural Remodeling of Blind‐Ended Lymphatic Microvessels

Advanced Healthcare Materials, EarlyView.
Using innovative microfluidic biofabrication with fluid mechanical insights, we recapitulated the blind‐ended microanatomy and physiological drainage properties of capillary lymphatics. Our results reveal the interrelationship between intra‐ and extraluminal regions of lymphatic vessels due to flow‐induced sprouting and morphological changes that ...
Jacob C. Holter, Shashwat S. Agarwal, Joseph W. Tinapple, Joseph M. Barlage, Travis H. Jones, Jonathan W. Song   +5 more
wiley   +1 more source

Hybrid Power Filter Based on a Six-Switch Two-Leg Inverter

Eletrônica de Potência, 2014
Hybrid power filters (HPFs) are considered an attractive solution to overcome the problem of current harmonics generated by nonlinear loads. They mix low power rating active filters with passive filters, but many of these HPF topologies have a great ...
Leonardo R. Limongi, Luiz G. B. Genú, Luís R. Silva Filho, Fabrício Bradaschia, Gustavo M. S. Azevedo   +4 more
doaj   +1 more source

Integrated series active filter for aerospace flight control surface actuation [PDF]

, 2007
The paper investigates integrated series active filters to satisfy aircraft power quality benchmarks and underlying design compromises. Advantages include reduced component count and retrofitting capability.
Bingham, Chris, Ganthony, D
core   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

Advanced Healthcare Materials, EarlyView.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar, Judith Evers, Alexandre Trotier, Manus Biggs, Madeleine M. Lowery   +4 more
wiley   +1 more source

Quality Parameters of Electricity Supplied to Electric Railways

Communications, 2001
The paper analyses the most relevant unfavourable impact of AC electric traction on the quality parameters of supplied electric energy. These are: power factor of fundamental harmonic and power factor, voltage a current harmonic components, unbalance and
Juraj Altus, Milan Novak, Alena Otcenasova, Michal Pokorny, Adam Szelag   +4 more
doaj   +1 more source

Comparative study between fuzzy logic and artificial neural network (ANN) algorithms for single phase shunt active power filters (SAPFs) [PDF]

, 2013
The excessive use of power electronics devices in industrial, commercial and residential purposes have lead to the deterioration of supply current and voltage wave forms, injecting harmonic pollution on to the supply system, which no doubt generates a ...
Abdul Wahab, Noor Izzri, Mailah, Nashiren Farzilah, Mohd Radzi, Mohd Amran, Sabo, Aliyu, Usman, Hamisu   +4 more
core  

Direct control strategy for a four-level three-phase flying-capacitor inverter [PDF]

, 2010
A direct predictive control strategy is proposed for a three-phase four-level flying-capacitor (FC) inverter in this paper. The balancing of the FC voltages, a challenge in applications with small capacitors and low switching frequencies, is done without
Defaÿ, François, Fadel, Maurice, Llor, Ana-Maria   +2 more
core   +1 more source

Respiratory Organ‐on‐a‐Chip for Disease Modeling: From Architecture to Functional Integration

Advanced Healthcare Materials, EarlyView.
Respiratory organ‐on‐a‐chip (ROC) models capture key mechanical and cellular cues of the human respiratory system, enabling quantitative dissection of disease mechanisms. This review links ROC architectures to disease modeling, functional integration, and commercialization, and proposes a decision framework that aligns model complexity with mechanistic
Jinzhuo Hu, Yongjie Tang, Sidi Liu, Tao Xu, Qian Liu   +4 more
wiley   +1 more source