Results 61 to 70 of about 190,388 (322)

Diophantine equations defined by binary quadratic forms over rational function fields

open access: yes, 2019
We study the ``imaginary" binary quadratic form equations ax^2+bxy+cy^2+g=0 over k[t] in rational function fields, showing that a condition with respect to the Artin reciprocity map, is the only obstruction to the local-global principle for integral ...
Lv, Chang
core   +1 more source

Computational assessment of thermally stratified magnetohydrodynamics Maxwell nanofluid with Joule heating and melting heat transfer

open access: yesResults in Physics, 2023
Researchers have reported an excellent desire for power storage devices that are more reliable and long-lasting. Battery storage devices are used in waste-to-energy recovery, wind power, mixed energy generation, and heating reactor designs.
Abdul Hamid Ganie   +7 more
doaj   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Estimation of UNIQUAC-NRF Model Parameters for NH3-CO2-H2O System [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2005
Vapor-liquid equilibrium in NH3-CO2-H2O system at high pressures has been studied. The UNIQUAC-NRF model for this system was extended by using the Goppert 4 maurer reported datas.
Hassan Pahlevanzadeh   +1 more
doaj  

Poincare series for the algebras of joint invariants and covariants of $n$ quadratic forms

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2017
We consider one of the fundamental problems of classical invariant theory - the research of Poincare series for an algebra of invariants of Lie group $SL_2$.
N.B. Ilash
doaj   +1 more source

Single Solid‐State Ion Channels as Potentiometric Nanosensors

open access: yesAdvanced Functional Materials, EarlyView.
Single gold nanopores functionalized with mixed self‐assembled monolayers act as solid‐state ion channels for direct, selective potentiometric sensing of inorganic ions (Ag⁺). The design overcomes key miniaturization barriers of conventional ion‐selective electrodes by combining low resistivity with suppressed loss of active components, enabling robust
Gergely T. Solymosi   +4 more
wiley   +1 more source

The Effects of Quartic Term Mathematical Model on The Concentration Profile of Fixed Bed Gas Adsorber

open access: yesJurnal Rekayasa Proses, 2021
The need for a reliable mathematical model depicting the process inside a column adsorber has become a requisite in designing an effective gas adsorber.
Ary Mauliva Hada Putri
doaj   +1 more source

Smarter Sensors Through Machine Learning: Historical Insights and Emerging Trends across Sensor Technologies

open access: yesAdvanced Functional Materials, EarlyView.
This review highlights how machine learning (ML) algorithms are employed to enhance sensor performance, focusing on gas and physical sensors such as haptic and strain devices. By addressing current bottlenecks and enabling simultaneous improvement of multiple metrics, these approaches pave the way toward next‐generation, real‐world sensor applications.
Kichul Lee   +17 more
wiley   +1 more source

Dual‐Percolative Planar‐Heterojunction Photoactive System for High‐Performance Stretchable Organic Photovoltaics Enhancing Power Output under Strain

open access: yesAdvanced Functional Materials, EarlyView.
A dual‐percolative planar‐heterojunction photoactive architecture enables intrinsically stretchable organic photovoltaics that combine high photovoltaic efficiency with enhanced mechanical robustness. Abstract Intrinsically stretchable organic solar cells (IS‐OSCs) are promising candidates for wearable power sources due to their ability to deform in ...
Jin‐Woo Lee   +8 more
wiley   +1 more source

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