Results 131 to 140 of about 307,424 (289)

A High Voltage Gain DC-DC Converter Based on Quadratic Boost Converter Suitable for Renewable Energy Resources [PDF]

Iranian Journal of Electrical and Electronic Engineering
Various forms of distributed generation (DG), such as photovoltaic (PV) systems, play a crucial role in advancing a more sustainable future, driven by economic factors and environmental policies implemented by governments.
Saeed Hasanzadeh, Seyed Mohsen Salehi, Mohammad Javad Saadatmandfar   +2 more
doaj  

Systems of quadratic forms [PDF]

Mémoires de la Société mathématique de France, 1979
openaire   +2 more sources

Algebraic systems of quadratic forms of number fields and function fields

Manuscripta Mathematica, 1989
If \(F\subset L\) is a finite extension of fields of characteristic \(\neq 2\) then a quadratic form \(\phi\) over \(F\) is algebraic (resp. a scaled trace form) if \(\phi\) is Witt equivalent to the trace form \(\text{Tr}_{L/F}()\) (resp. to \(\text{Tr}_{L/D}()\) for some \(\lambda \in L^*)\). Given a form \(\phi\) over \(F\) one wants to decide if \(\
openaire   +2 more sources

Tough and Rapidly Relaxing Hydrogels Via Programmable Crosslink Kinetics

Advanced Materials, EarlyView.
A kinetic programming strategy encodes supramolecular crosslink lifetimes in single polymer networks via stoichiometric control of fast and slow hostguest interactions. This enables predictable stress relaxation on biologically relevant timescales (0.1‐100 s) while maintaining exceptional toughness (up to 14,500 J m−2), resolving the long‐standing ...
Yuanyuan Wei, Stephen J.K. O'Neill, Jade A. McCune, Oren A. Scherman   +3 more
wiley   +1 more source

On zeros of a system of quadratic forms in 3 variables

Journal of Algebra, 2016
Abstract Let k be a field of characteristic distinct from 2, f 1 , f 2 , f 3 quadratic forms in 3 variables over k. We prove that these forms have a common zero over k if and only if the quadratic form u 1 f 1 + u 2 f 2 + u 3 f 3 is isotropic over the field
openaire   +1 more source

MULTIPLE-OUTPUT PRODUCTION MODELED WITH THREE FUNCTIONAL FORMS [PDF]

Aggregate dual models are specified to examine multiple-output production relationships in each of four major, geographically dispersed, agricultural states (California, Iowa, Texas, and Florida).
Shumway, C. Richard, Villezca-Becerra, Pedro A.   +1 more
core   +1 more source

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

Advanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández, Iason Konstantinos‐Douveas, Claas Abert, Elina Zhakina, Sandra Ruiz‐Gómez, Claudia Fernández‐González, Luke Alexander Turnbull, Sebastian Wintz, Markus König, Simone Finizio, Markus Weigand, Naëmi Leo, Dieter Suess, Aurelio Hierro‐Rodríguez, Amalio Fernández‐Pacheco, Claire Donnelly   +15 more
wiley   +1 more source

A behavioral view of Nevanlinna-Pick interpolation

, 2005
The classical Nevanlinna-Pick (NP) interpolation problem is about finding a rational function that satisfies given interpolation conditions, along with a norm condition.
Pendharkar, Ishan, Pillai, Harish K., Rapisarda, Paolo   +2 more
core  

In Situ Copper Electroplating Turns Material Extrusion 3D Printers Into Metal–Polymer Hybrid Fabricators

Advanced Materials Technologies, EarlyView.
An in situ electroplating approach for MEX 3D printing is proposed, enabling copper deposition during the fabrication of conductive polymers. The method combines a printer‐integrated plating head, ML‐based g‐code control, and stop‐and‐go printing, achieving near‐bulk copper conductivity and enabling fully embedded, assembly‐free electronic components ...
Gianluca Percoco, Nicola Larovere, Antonio Zagaria, Antonio Pavone, Rosanna Rifino, Gianni Stano   +5 more
wiley   +1 more source

Wet Ball Milling Synthesis of Iron Oxide Nanoparticles for High‐Efficiency, Controllable Magnetic Hyperthermia in Ovarian Cancer

Advanced Materials Technologies, EarlyView.
A wet ball‐milling method is presented to synthesize iron magnetic nanoparticles and evaluate their magnetic hyperthermia performance. Optimized particles (∼270 nm, Ms ∼114 emu/g) achieve ∼50°C heating under clinically safe alternating magnetic fields, while pulsed‐field operation enables controlled temperature regulation (∼30°C).
Shahriar Mostufa, Bahareh Rezaei, Md Shahriar, Karla Mercedes Paz González, Anil Kumar, Changxue Xu, Yun Suk Eo, Ioannis H. Karampelas, Jenifer Gómez‐Pastora, Rui He, Kai Wu   +10 more
wiley   +1 more source