Results 11 to 20 of about 3,049,647 (303)

Impedance stability analysis and impedance remodelling of matrix converter grid-connected system

open access: yesThe Journal of Engineering, 2020
Matrix converter has become one of the research hotspots of power electronic converter due to its excellent input and output characteristics and adjustable power factor.
Rutian Wang, Guoqing He, Bo Zhang
doaj   +1 more source

Expedited Feature-Based Quasi-Global Optimization of Multi-Band Antenna Input Characteristics With Jacobian Variability Tracking

open access: yesIEEE Access, 2020
Design of modern antennas relies-for reliability reasons-on full-wave electromagnetic simulation tools. In addition, increasingly stringent specifications pertaining to electrical and field performance, growing complexity of antenna topologies, along ...
Slawomir Koziel   +1 more
doaj   +1 more source

Evaluasi Keberhasilan Studi Mahasiswa Program Sinergi S1-S2 Institut Pertanian Bogor

open access: yesJurnal Pendidikan: Teori, Penelitian, dan Pengembangan, 2020
: This study aims to determine profile of fast track program based on the characteristics input and knowing the factors that influence academic achievement student of fast track program bachelor to master degree IPB.
Imas Fatimah   +2 more
doaj   +1 more source

Mathematical model of antenna with nonlinear characteristics for calculating the electromagnetic field in the Fresnel zone

open access: yesРадіоелектронні і комп'ютерні системи, 2021
The paper presents a mathematical model of radio-electronic systems (RES), which include antennas and their excitation paths with nonlinear characteristics.
Дмитро Вячеславович Грецьких   +4 more
doaj   +1 more source

Cost-Efficient Bi-Layer Modeling of Antenna Input Characteristics Using Gradient Kriging Surrogates

open access: yesIEEE Access, 2020
Over the recent years, surrogate modeling has been playing an increasing role in the design of antenna structures. The main incentive is to mitigate the issues related to high cost of electromagnetic (EM)-based procedures.
Anna Pietrenko-Dabrowska   +2 more
doaj   +1 more source

Input impedance characteristics of microstrip structures

open access: yesVisnyk NTUU KPI Seriia - Radiotekhnika Radioaparatobuduvannia, 2015
В статье исследованы входные импедансные характеристики электромагнитнокристаллических (ЭК) и традиционных микрополосковых неоднородностей, а также фильтра на основе ЭК-неоднородностей. Приведены характеристики коэффициента прохождения низкоимпедасних ЭК- и традиционной неоднородностей.
Nazarko, A. I.   +3 more
openaire   +2 more sources

Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels

open access: yesAI, 2022
Given strict emission targets and legal requirements, especially in the automotive industry, environmentally friendly and simultaneously versatile applicable production technologies are gaining importance.
Christoph Zirngibl   +2 more
doaj   +1 more source

Comparison of Seismic Input Energy Based on the Characteristics of Structural Hysteretic Behavior [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2019
Alteration in earthquake input energy correspond with changes in characteristics of the various existing structures, particularly in hysteretic states, has not been examined to such extent that creates enough confidence to present diverse regulations or ...
Somayyeh Karimiyan, Mahmood Hosseini
doaj   +1 more source

Significant Influence of Welding Heat Input on the Microstructural Characteristics and Mechanical Properties of the Simulated CGHAZ in High Nitrogen V-Alloyed Steel

open access: yesHigh Temperature Materials and Processes, 2020
The microstructural characteristics and mechanical properties of the simulated coarse grained heat affected zone (CGHAZ) in high N V-alloyed steel have been conducted under different welding heat input, characterized by the cooling time taken from 800°C ...
Zhang Jing   +4 more
doaj   +1 more source

Input Impedance and Gain of a Gigahertz Amplifier Using a DC SQUID in a Quarter Wave Resonator

open access: yes, 2008
Due to their superior noise performance, SQUIDs are an attractive alternative to high electron mobility transistors for constructing ultra-low-noise microwave amplifiers for cryogenic use. We describe the use of a lumped element SQUID inductively coupled
Aumentado, Jose   +2 more
core   +1 more source

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