Results 21 to 30 of about 2,185 (217)
A new method for input installation impedance measurement [PDF]
The access impedance for Narrowband PLC communication is dependent of the global installation impedance. The interest of this paper is to measure the domestic installation impedance using a new setup based on an LCL filter for masking the network impedance. The short-time and the frequency variation of the global impedance in the frequency band between
Elfeki, Imène +4 more
openaire +2 more sources
Additional High Input Low Output Impedance Analog Networks
This paper presents some additional high input low output impedance analog networks realized using a recently introduced single Dual-X Current Conveyor with buffered output. The new circuits encompass several all-pass sections of first- and second-order.
Sudhanshu Maheshwari +1 more
doaj +1 more source
Input Impedance of Planar FP and EBG Antennas [PDF]
The theoretical study of the input impedance for Fabry-Perot (FP), Electromagnetic Band Gap (EBG) or Leaky Wave (LW) antennas is a real challenge from mathematical and electromagnetic modelling point of view and is very rarely addressed in the literature.
Vu, Thai Hung +3 more
openaire +3 more sources
Impedance-Based Modeling and Common Bus Stability Enhancement Control Algorithm in DC Microgrid
In this paper, impedance modeling of a DC microgrid system consisting of a source and load converter, including an input filter, is performed. Impedance-based modeling has been used to derive mathematical models of the output impedance of the source ...
Jae-Suk Lee +3 more
doaj +1 more source
Impedance Decoupling in DC Distributed Systems to Maintain Stability and Dynamic Performance
DC distributed systems are highly reliable and efficient means of delivering DC power or adopting renewable energy resources. However, DC distributed systems are prone to instability and dynamic performance degradation due to the negative incremental ...
Ahmed Aldhaheri, Amir Etemadi
doaj +1 more source
In this paper, the current distribution and an input impedance of a horizontal linear antenna in the presence of a layered region are investigated both analytically and numerically. In particular, we demonstrate the case of a four-layered region.
Hui Ran Zeng, Tong He, Le Li, Kai Li
doaj +1 more source
The paper presents the results of the assessment and verification of an impedance-frequency method of transverse fault location in medium voltage cables with a local weakening of insulation.
Aneta Bugajska +3 more
doaj +1 more source
A compact rectifier with high efficiency at wide input power dynamic range is proposed in this paper. The circuit consists of a matching network, two shunt connected diodes with an integrated impedance compression network (IICN) and a dc-pass filter. The
Yu Yang Xiao +5 more
doaj +1 more source
General Analysis of a Loop Antenna Located on a Uniaxial Metamaterial Cylinder
The general problem of determining the electrodynamic characteristics of a circular loop antenna located coaxially on the surface of a metamaterial cylinder is studied using the integral equation method. The antenna has the form of a perfectly conducting,
Anna S. Zaitseva +2 more
doaj +1 more source
Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
wiley +1 more source

