Results 111 to 120 of about 760,879 (293)

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

DOUBLE-SOURCE ALTERNATE BACKUP TYPE UNIFIED POWER QUALITY CONDITIONER

Electrica, 2009
A double-source alternate backup type unified power quality conditioner (DS-UPQC) is proposed in this paper, which consists of two shunt inverters and two series inverters, the shunt inverters are connected alternately to the series inverters through the
Haibo LIU, Chengxiong MAO, Jiming LU, Dan WANG   +3 more
doaj   +2 more sources

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

Advanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice, Krzysztof S. Stopka, Michael D. Sangid   +2 more
wiley   +1 more source

Hardware Implementation of Dynamic Voltage Restorer to Reduce Voltage Sag/swell

International Journal For Multidisciplinary Research
Voltage sag disturbances are the most common Power Quality issues in distribution systems. Dynamic Voltage Restorer is usually used as a way to reduce voltage sag. The suggested method requires fewer switching devices and has superior compensating capabilities compared to frequently utilised compensators.
Tushal Sharma -, Dr. Geena Sharma -
openaire   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Ride through capabilities of load during voltage sag/swell and power interruption with zigzag transformer

, 2008
Single-phase voltage sag or swell of a 3-phase system due to one phase to ground fault, capacitor switching or any other reason is to be mitigated immediately for satisfactory operation of all the equipments.
S. A. Hafidz, Basu, K. P., Hafidz, S. A., K. P. Basu   +3 more
core   +1 more source

Design and analysis of solar PV-fuel cell and wind energy based microgrid system for power quality improvement

Cogent Engineering, 2017
In recent years the electric energy sector has been experiencing an extension into distributed generation, and in this context microgrids have been achieving increasing importance. Microgrids are composed of renewable and conventional generation systems,
Sarita Samal, Prakash Kumar Hota
doaj   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Flexural Behavior of 3D‐Printed Porous Bouligand‐Structured Polymers: Influence of Pitch Angle and Porosity

Advanced Engineering Materials, EarlyView.
This study examines how helicoidal architectures with different porosities respond to bending. Adjusting layer angle and spacing in 3D‐printed polymers reveals clear tradeoffs between stiffness, strength, and energy absorption. Experiments and simulations highlight designs that distribute stress effectively, offering pathways for optimizing lightweight
Praveenkumar Subhash Patil, Edward D. McCarthy, Parvez Alam   +2 more
wiley   +1 more source

Mitigation of voltage sag/swell using Dynamic voltage restorer (DVR)

IOSR Journal of Electrical and Electronics Engineering, 2013
The most noticeable topic for electrical engineering is power quality in recent year. Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency. Utility distribution networks, sensitive industrial load and critical commercial operation suffer from various types of outages and service interruption can cost ...
openaire   +1 more source