Results 31 to 40 of about 114,337,738 (295)

Numerical Solution of Some Differential Equations with Henstock–Kurzweil Functions

Journal of Function Spaces, 2019
In this work, the Finite Element Method is used for finding the numerical solution of an elliptic problem with Henstock–Kurzweil integrable functions. In particular, Henstock–Kurzweil high oscillatory functions were considered.
D. A. León-Velasco, M. M. Morín-Castillo, J. J. Oliveros-Oliveros, T. Pérez-Becerra, J. A. Escamilla-Reyna   +4 more
doaj   +1 more source

Explicit solution of one hypersingular integro-differential equation of the second order

Журнал Белорусского государственного университета: Математика, информатика, 2019
The linear equation on the curve located on the complex plane is studied. The equation contains the desired function, its derivatives of the first and second orders, as well as hypersingular integrals with the desired function.
Andrei P. Shilin
doaj   +1 more source

On approximate solution of non-elliptic singular integral equation systems in Lebesgue spaces [PDF]

Computer Science Journal of Moldova, 2000
We investigate in this paper problems of theoretical foundation of collocations and mechanical quadratures methods for approximate solution of singular integral equation systems in the case, when their symbols have on the integration contour a finite set
T. Cibotaru
doaj  

Generalized Kronrod Patterson type imbedded quadratures [PDF]

, 1992
summary:We present algorithms for the determination of polynomials orthogonal with respect to a positive weight function multiplied by a polynomial with simple roots inside the interval of integration.
Elhay, Sylvan, Kautsky, Jaroslav
core   +1 more source

Toward Cell‐Specific Molecular MRI: Modulating Chemical Exchange Saturation Transfer Contrast With Manganese

Angewandte Chemie, EarlyView.
Manganese‐modulated chemical exchange saturation transfer (CEST) MRI, Manga CEST, leverages intracellular Mn2+ uptake to selectively perturb CEST contrast. Comparing Z‐spectra before and after Mn reveals compartment‐specific contributions. In vivo, neuron‐enriched Mn accumulation induces frequency‐dependent attenuation (3–4 ppm), enabling cell‐weighted
Eleonora Cavallari, Valeria Bitonto, Morgana Giachello, Angelo Bifone   +3 more
wiley   +2 more sources

Quadratures of Pontryagin extremals for optimal control problems [PDF]

, 2006
We obtain a method to compute effective first integrals by combining Noether's principle with the Kozlov-Kolesnikov integrability theorem. A sufficient condition for the integrability by quadratures of optimal control problems with controls taking values
Rocha, E. A., Rocha, E.A.M., Torres, D. F., Torres, D.F.M.   +3 more
core   +2 more sources

Strong Coupling in Bulk Nanoplasmonic Nanoplatelet Perovskite Scintillators

Advanced Materials, EarlyView.
A bulk scintillating nanocomposite is engineered from CsPbBr3 nanoplatelets and Ag nanocubes to support exciton–plasmon strong coupling under X‐ray excitation. The resulting hybrid polaritonic states appear directly in radioluminescence, opening a route toward polariton‐enabled scintillator design beyond conventional Purcell enhancement.
Michal Makowski, Dominik Kowal, Anna Pniakowska, Kamil Misztal, Mohanad Saadeldin Eid, Joanna Cybinska, Winicjusz Drozdowski, Benoit Mahler, Christophe Dujardin, Detlef Hommel, Liang Jie Wong, Dennis Schaart, Sergio Brovelli, Muhammad Danang Birowosuto   +13 more
wiley   +1 more source

Liquid‐Crystal‐Based Reconfigurable Intelligent Surface for 7 GHz Mobile Communication

Advanced Materials Technologies, EarlyView.
The glass‐based liquid‐crystal reconfigurable intelligent surface (LC‐RIS) integrates active‐matrix driving and blind‐greedy phase optimization within a 5G‐NR OFDM framework. This enables continuously tunable and autonomous enhancement of wireless coverage. Leveraging the transparency and manufacturability of liquid crystal panels, it is ideally suited
Tien‐Lun Ting, Yuh‐Chyi Chang, Yi‐Chan Hung, Cheng‐Yuan Hsiao, Chao‐Kai Wen, Tsung‐Hsien Lin   +5 more
wiley   +1 more source

Stochastic simulation with informed rotations of Gaussian quadratures [PDF]

, 2023
Given the fast growth of available computational capacities and the increasing complexity of simulation models addressing agro-environmental issues, uncertainty analysis using stochastic techniques has become a standard modeling practice.
Zimmermann, Georg, Grethe, Harald, Stepanyan, Davit   +2 more
core   +2 more sources

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

Advanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao, Zhuozhen Gan, Chengcheng Long, Man Zhang, Yihe Miao, Yuehui Li, Xuancan Zhu   +6 more
wiley   +1 more source