Results 61 to 70 of about 7,856 (197)

Improvement in Hemorrhoidal Disease Surgery Outcomes Using a New Anatomical/Clinical–Therapeutic Classification (A/CTC)

open access: yesThe Surgery Journal, 2020
Introduction The introduction and diffusion of new techniques for hemorrhoidal surgery have made it clear how much Goligher classification is inadequate in the modern times, lacking in any correlation between anatomical and clinical features to a ...
Gabriele Naldini   +7 more
doaj   +1 more source

Modeling and Implementation of Space Vector PWM Driver of 3-Phase Induction Motor [PDF]

open access: yesEngineering and Technology Journal, 2009
This research proposes the design, simulation, and implementation of a three-phase induction motor driver, using voltage-fed Space Vector Pulse Width Modulation technique (SVPWM), which is an advance and modern technique. The SVPWM provides maximum usage
Fadhil Abbas Hassan, Majid K. Al-Khatat
doaj   +1 more source

First‐Principles Investigation of the Thermoelectric Behavior of the Orthorhombic Cadmium Stannate (Cd2SnO4)

open access: yesAdvanced Physics Research, EarlyView.
Cd2SnO4 exhibits excellent thermoelectric properties with a high Seebeck coefficient, power factor, and figure of merit, surpassing Bi2Te3. It shows both positive and negative Seebeck coefficient values, making it suitable for diverse applications. Its high electrical conductivity and low thermal conductivity enhance efficiency, while its negative Hall
Adel Bandar Alruqi, Nicholas O. Ongwen
wiley   +1 more source

Simulasi Distribusi Fluks dan Tegangan Generator Magnet Permanen Satu-Fasa Hasil Modifikasi Motor Induksi Rotor Sangkar Satu-Fasa

open access: yesJurnal Elkomika
ABSTRAK Modifikasi motor induksi rotor sangkar satu-fasa (MI) menjadi generator magnet permanen satu-fasa (GMP) memberi manfaat seperti re-use MI bekas serta aplikasinya untuk memanen potensi energi hidro sungai kecil berelevasi rendah.
I MADE WIWIT KASTAWAN, RAHMAT HIDAYAT
doaj   +1 more source

Design and analysis of DC to DC converter with PID controller for fast charging electrical vehicle application [PDF]

open access: yesE3S Web of Conferences
As a consequence of the exponential growth of the electric vehicle (EV) market, DC fast charging infrastructure is being rapidly deployed all around the world.
Pranay M., Pala Prasad Reddy M.
doaj   +1 more source

Total Harmonic Distortion Measurement of 13-level FCML Inverter for SPWM and THIPWM Method [PDF]

open access: yesJournal of Electrical and Electronics Engineering, 2022
One of the main problems for flying capacitor multilevel (FCML) inverter is the higher value of total harmonic distortion (THD) with number of capacitors and switching devices.
BHADRA Ananta Bijoy
doaj  

Stepwise Optimization of Thermoelectric Performance in Cu3SbSe4‐Based Compounds via Alloying and Hierarchical Structuring

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Under the stepwise optimization strategy, (Sn, Te) co‐alloying functions as the primary initiative to enhance the power factor (PF), while the subsequent incorporation of AgCuTe operates as a synergistic maneuver to suppress lattice thermal conductivity (κlat), thereby concomitantly boosting the dimensionless figure of merit (ZT).
Wenying Wang   +7 more
wiley   +1 more source

Advanced Virtual Impedance for Power‐Sharing Improvement in Microgrids Using Different SOGI Methods: A Comparative Study

open access: yesEnergy Technology, EarlyView.
Advanced virtual impedance control integrating multiple second‐order generalized integrator (SOGI) variants—SOGI, ESOGI, MSOGI, and DSOGI—enhances power and harmonic sharing accuracy in islanded microgrids. The comparative study quantifies performance–complexity trade‐offs, demonstrating up to 65% total harmonic distortion (THD) reduction and improved ...
Camelia Ait Hammouda   +3 more
wiley   +1 more source

Passive Filter Design for Improving Quality of Solar Power

open access: yesInternational Journal of Electrical, Energy and Power System Engineering, 2018
With the progress of industry, power electronic equipment is widely used in power system, it has produced serious harmonic distortion. It goes without saying that harmonic analysis is a very important subject in power system.
Nurhalim Dani Ali   +4 more
doaj   +1 more source

Harmonics and THD in Five Phase Inverters

open access: yesInternational Journal of Innovative Technology and Exploring Engineering, 2019
Now-a-days most of the appliances and machine works on AC power. If AC power is unavailable for a short period of time, then during that period we need to supply AC power by converting the stored DC power. This can be possible using an Inverter. Inverters can be of multi-phase i.e. 3phase, 5phase, 6phase and so on. Since inverters have wide application
Byamakesh Nayak*, Sangeeta Sahu
openaire   +1 more source

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