Results 21 to 30 of about 2,146,019 (274)
AGN and starbursts at high redshift: High resolution EVN radio observations of the Hubble Deep Field [PDF]
, 2000 We present deep, wide-field European VLBI Network (EVN) 1.6 GHz observations of the Hubble Deep Field (HDF) region with a resolution of 0.025 arcseconds.
A. Alberdi +25 more
core +3 more sources
Improved Quasi-Z-Source High Step-Up DC–DC Converter Based on Voltage-Doubler Topology
Sensors, 2022 The step-up DC–DC converter is widely used for applications such as IoT sensor nodes, energy harvesting, and photovoltaic (PV) systems. In this article, a new topological quasi-Z-source (QZ) high step-up DC–DC converter for the PV system is proposed. The
Toru Sai +2 more
doaj +1 more source
DC Link Voltage Control of Enhanced Bidirectional Z Source Inverter with Improved ADＲC
Journal of Harbin University of Science and Technology, 2020 An improved auto disturbance rejection control technique ( ADＲC) is proposed to control the DC link voltage of the enhanced bidirectional Z source inverter. Firstly，the basic working principle of the enhanced bidirectional Z-source inverter is introduced，
YAN Jing-bin +4 more
doaj +1 more source
VLBI observation of the newly discovered z=5.18 quasar SDSS J0131-0321 [PDF]
, 2015 Few high-redshift, radio-loud quasars are known to date. The extremely luminous, radio-bright quasar, SDSS J013127.34-032100.1 was recently discovered at a redshift of $z=5.18$.
An, T. +6 more
core +2 more sources
Frontiers in Energy Research, 2022 With the rapid advancement of the Energy Internet strategy, the number of sensors within the Power Distribution Internet of Things (PD-IoT) has increased dramatically.
Quande Yuan +6 more
doaj +1 more source
Heat measurement at various parts of three phase induction motor at low speed using Z-source filter [PDF]
, 2013 The stator temperature of the three phase induction motor with Z-source inverter drive is experimentally studied in this paper along with the comparison of the stator temperature of three phase induction motor with PWM drive. Z-source inverter employs an
Manjesh, M., Rajesh, B.
core +1 more source
Network error correction with unequal link capacities
, 2010 This paper studies the capacity of single-source single-sink noiseless networks under adversarial or arbitrary errors on no more than z edges. Unlike prior papers, which assume equal capacities on all links, arbitrary link capacities are considered ...
Avestimehr, Amir Salman +3 more
core +2 more sources
Direct matrix converter based on improved quasi‐Z source network
IET Power Electronics, 2020 This study proposes a three‐phase direct matrix converter (DMC) topology based on an improved quasi‐Z source (QZS) network. The proposed topology shows the following features: (i) Improve the voltage transmission ratio of traditional DMC. (ii) The voltage and current on the output side can be affected by the input side to the minimum, which minimises ...
Bowei Zou +5 more
openaire +1 more source
An Improved Space Vector PWM for Z- Source Multi-Level Neutral Point Inverter Drive
Journal of Applied Science and Engineering, 2022 This paper presents an improved space vector PWM (SVPWM) for Z Source Multi-level inverter, which offers a single–stage power conversion by using single impedance (Z) network to boost its output AC voltage through shoot-through (ST) and non-ST ...
Suresh Kumar Annam +2 more
doaj +1 more source
Voltage Type Z-source Converters: Overview of the Main Topologies
Eletrônica de Potência, 2012 This paper presents a review in terms of new configurations involving the Z-source converter concept. Since its first appearance, it is evident the importance assumed by the Z-source converter in the last years as a new topological structure with ...
Euzeli C. dos Santos Jr. +3 more
doaj +1 more source