Results 71 to 80 of about 4,909 (199)

Comprehensive DFT Analysis of FeSi and RhSi: Structural Stability, Electronic Contrast and Transport‐Optical Responses

Advanced Physics Research, Volume 5, Issue 8, August 2026.
This comprehensive density functional theory analysis investigates the structural, electronic, optical, mechanical, and thermoelectric properties of FeSi, c‐RhSi, and o‐RhSi. Results reveal distinct electronic and optical contrasts among the materials.
Md Farhan Hassan, Shaher Azad, Md Salim Hossain, Suptajoy Barua, Md Kamruzzaman   +4 more
wiley   +1 more source

Multi-Objective Pulse Pattern Optimization for Synchronous Machine Drives Considering Different Symmetry Properties

IEEE Open Journal of Power Electronics
This research investigates the effects of optimized pulse patterns (OPPs) on the switching losses of two-level voltage-source inverters (VSIs) and current total harmonic distortion (THD) of permanent magnet synchronous machines (PMSMs) with magnetic ...
Simon Aleff, Yasuhiro Nakai, Thomas Lux, Oliver Wallscheid   +3 more
doaj   +1 more source

Sintering‐Driven Modulation of Lattice Dynamics, Elastic Behavior, and Dielectric Response in Al–Sn Co‐Doped Zinc Ferrite Nanoparticles

Advanced Physics Research, Volume 5, Issue 8, August 2026.
Sintering ZnAl0.1Sn0.1Fe1.8O4 nanoparticles at 1200°C optimizes structural lattice dynamics, significantly enhancing both macroscopic elastic stiffness and high‐frequency dielectric response through synergistic Al3+ stabilization and Sn4+‐driven charge transport. ABSTRACT In this work, ZnAl0.1Sn0.1Fe1.8O4 (ZASFO) ferrites were synthesized via a sol–gel
Matin Patel, Kirti R. Desai, Devendra S. Wagare, Sagar E. Shirsath, Prashant D. Netankar   +4 more
wiley   +1 more source

Structure–Property Relationship of Supported Organochromium Catalysts Using Combined Computational XANES Analysis and Mechanistic Simulation

ChemCatChem, Volume 18, Issue 15, 14 August 2026.
Combined computational XANES analysis and mechanistic simulations reveal how lithiation of oxide supports tunes the structure and selectivity of single‐site organochromium catalysts, providing molecular‐level insights and a generalizable strategy for designing selective ethylene oligomerization catalysts.
Yu Lim Kim, Jacklyn N. Hall, Jiayi Xu, David M. Kaphan, Massimiliano Delferro, Arthur Jeremy Kropf, Cong Liu   +6 more
wiley   +1 more source

Static and Dynamic Analysis of Porous Gas Bearings Lubricated With Air, Refrigerant R‐134a, Helium and Hydrogen

Lubrication Science, Volume 38, Issue 5, Page 301-326, August 2026.
ABSTRACT Porous gas bearings (PGBs) enable high‐speed, oil‐free operation in modern rotating machinery. This study develops a coupled thermo‐hydrodynamic (THD) model for a cylindrical porous gas bearing lubricated with four working fluids—air, R‐134a, helium and hydrogen.
S. Bechiri, B. Bouchehit, B. Bou‐Saïd
wiley   +1 more source

First Principles Insights Into Emerging Perovskite Hydrides for Hydrogen Storage Applications: A Review

physica status solidi (RRL) – Rapid Research Letters, Volume 20, Issue 8, August 2026.
Perovskite hydrides are emerging as promising solid‐state hydrogen storage materials with tunable composition, structural versatility, and reversible hydrogen uptake. First‐principles DFT calculations offer important insights into their stability, electronic structure, thermodynamics, and storage performance.
Fikadu Takele Geldasa, Francis Birhanu Dejene   +1 more
wiley   +1 more source

Novel BRAF fusion in Erdheim–Chester disease with pulmonary manifestations: Importance of RNA‐based testing and response to MEK inhibition

Histopathology, Volume 89, Issue 3, Page 558-561, September 2026.
Igor Odintsov, Henry D. Tazelaar, Jerry C. Lee, Lloyd E. Damon, Walter Patrick Devine, Kirk D. Jones   +5 more
wiley   +1 more source

Excitation of Large Amplitude Compressional ULF Waves in the Magnetosphere by Solar Wind Pressure Spikes and IMF Southward Turning

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract We present a case study of large amplitude, compressional Pc5 waves observed by GOES 13 and 15 at geosynchronous orbit near noon. These waves were excited near the arrival time of two consecutive solar wind dynamic pressure spikes at the magnetopause, the second of which was associated with a large and rapid southward turning of the ...
C. Lazzeri, C. Forsyth, A. Samsonov, A. Fazakerley, M. Archer, T. Elsden, K. J. Trattner, J. Rae, A. W. Degeling   +8 more
wiley   +1 more source

A New Multilevel Inverter Topology for Grid-Connected Photovoltaic Systems

International Journal of Photoenergy, 2018
The demand for clean and sustainable energy has spurred research in all forms of renewable energy sources, including solar energy from photovoltaic systems.
Muhammad Bilal Satti, Ammar Hasan, Mian Ilyas Ahmad   +2 more
doaj   +1 more source

Foreshock Ion Properties at Earth's Bow Shock: Dependence on Upstream Conditions and Shock Geometry

Journal of Geophysical Research: Space Physics, Volume 131, Issue 8, August 2026.
Abstract Solar wind ion reflection at collisionless shocks regulates foreshock plasma dynamics, yet the quantitative dependence of foreshock ion properties on upstream and shock‐related parameters remains unclear, causing difficulties in predicting foreshock disturbances.
Runyi Liu, Terry Liu, Kun Zhang, Vassilis Angelopoulos, Siqi Zhao   +4 more
wiley   +1 more source