Results 111 to 120 of about 595,467 (282)

Investigation of Oxygen‐Free Wetting Behavior of Aluminum on Copper via Molecular Dynamics Simulations and Experiments

Advanced Engineering Materials, EarlyView.
The wettability of aluminum droplets (Al) on different copper substrates (Cu), where liquid Al spreads on solid Cu surfaces to form a liquid–solid interface, is studied numerically and experimentally. The experimental and numerical results show good agreement in the fast‐spreading regime.
Shan Lyu, Timon Steinhoff, Finn‐Lennard Janthur, Sarah Seffer, Jörg Hermsdorf, Christian Klose, Ludger Overmeyer, Hans‐Jürgen Maier, Nina Merkert   +8 more
wiley   +1 more source

Determination of Optimal Location and Sizing of Solar Photovoltaic Distribution Generation Units in Radial Distribution Systems

Energies, 2019
This paper presents an effective biogeography-based optimization (BBO) for optimal location and sizing of solar photovoltaic distributed generation (PVDG) units to reduce power losses while maintaining voltage profile and voltage harmonic distortion at ...
Minh Quan Duong, Thai Dinh Pham, Thang Trung Nguyen, Anh Tuan Doan, Hai Van Tran   +4 more
doaj   +1 more source

On the frequency of close binary systems among very low-mass stars and brown dwarfs

, 2005
We have used Monte Carlo simulation techniques and published radial velocity surveys to constrain the frequency of very low-mass star (VLMS) and brown dwarf (BD) binary systems and their separation (a) distribution.
Jeffries, R. D., Maxted, P. F. L.
core   +2 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Multi-objective reconfiguration of radial distribution systems using reliability indices

2016 IEEE/PES Transmission and Distribution Conference and Exposition (T&D), 2016
This paper deals with the distribution network reconfiguration problem in a multi-objective scope, aiming to determine the optimal radial configuration by means of minimizing the active power losses and a set of commonly used reliability indices formulated with reference to the number of customers.
Paterakis, N. G., Mazza, A., Santos, S. F., Erdinc, O., Chicco, G., Bakirtzis, A. G., Catalao, J. P. S.   +6 more
openaire   +3 more sources

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

DC Microgrid Sizing and Placement Based on Hybrid Optimization Algorithm

IEEE Access
This study introduces a novel hybrid optimization approach to achieve optimal size, strategic placement of distributed energy generators, and improved performance assessment within radial distribution systems. The three goals are: 1) determining the best
Solomon Muluneh, Zenghui Wang
doaj   +1 more source

k-NN based regression strategy used to estimate the fault distance in radial power systems

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
A regression strategy based on k nearest neighbors (k-NN) to estimate the fault distance in radial power systems is proposed. This fault location approach uses measurements of the fundamental components of voltage and current measured at the power ...
Germán Morales-España, Juan Mora-Flórez, Hermann Vargas-Torres   +2 more
doaj   +1 more source

Distributed Generator Placement And Sizing In Unbalanced Radial Distribution System

, 2009
{"references": ["T. Ackermann, G. Anderson, L. S\u00f6der, 2001. Distributed generation: a\ndefinition. Electrical Power System Research, 57: 195-204.", "G. Pepermans, J. Driesen, D. Haeseldonckx, R. Belmans, W.\nD-haeseleer, 2005. Distributed Generation: definition, benefits and\nissues. Energy Policy, 33: 787-798.", "P.P. Barker, R.W. de Mello, 2000.
J. B. V. Subrahmanyam, C. Radhakrishna
openaire   +1 more source