Results 61 to 70 of about 11,362 (259)

Un nuovo integrale per il problema delle primitive

open access: yesLe Matematiche, 1996
We introduce a new type of integral, which solves the problem of finding antiderivatives but which does not contain the improper integral.
Benedetto Bongiorno
doaj  

A Biochar‐Based Composite Hydrogel Microenvironment for Enhanced Biocatalysis

open access: yesAdvanced Materials, EarlyView.
This work presents the synthesis of a polyacrylamide hydrogel wherein biomass‐derived biochar is co‐encapsulated with the enzyme horseradish peroxidase (HRP). The resulting composite hydrogel possesses balanced electron‐rich and electron‐deficient domains, creating an optimal microenvironment that concentrates both hydrogen peroxide and phenol ...
Shengzhe Wang   +9 more
wiley   +1 more source

Triggered Ferroelectricity in HfO2 From Hybrid Phonons and Higher‐Order Dynamical Charges

open access: yesAdvanced Materials, EarlyView.
We combine first‐principles calculations, LGD theory and group theory to demonstrate the mechanism of hybrid‐triggered ferroelectricity in HfO2${\rm HfO}_2$, enabled by trilinear and quadlinear couplings between stable polar and nonpolar modes. HfO2${\rm HfO}_2$ hosts unconventional interplay between structure modes where substantial contribution to ...
Seongjoo Jung, Turan Birol
wiley   +1 more source

On the boundedness and integration of non-oscillatory solutions of certain linear differential equations of second order

open access: yesJournal of Advanced Research, 2016
In this paper, certain system of linear homogeneous differential equations of second-order is considered. By using integral inequalities, some new criteria for bounded and L2[0,∞)-solutions, upper bounds for values of improper integrals of the solutions ...
Cemil Tunç, Osman Tunç
doaj   +1 more source

Advanced Mounting Technique for Improved Imaging and Analysis of Embedded Spheroids and Migrating Cells in Light Sheet Fluorescence Microscopy

open access: yesAdvanced Materials Technologies, EarlyView.
A novel sample holder compatible with the Zeiss Lightsheet 7 microscope improves imaging of spheroids embedded in collagen matrices. By enabling dual‐sided illumination, it enhances image quality and quantitative analysis of migrating cells. This method advances 3D light sheet microscopy for studying tumor invasion and therapeutic responses.
Masoumeh Mohamadian Namaqi   +5 more
wiley   +1 more source

Lattice Structures for Bone Replacement: The Intersection of Bone Biomechanics, Lattice Design, and Additive Manufacturing

open access: yesAdvanced Materials Technologies, EarlyView.
This review outlines how understanding bone's biology, hierarchical architecture, and mechanical anisotropy informs the design of lattice structures that replicate bone morphology and mechanical behavior. Additive manufacturing enables the fabrication of orthopedic implants that incorporate such structures using a range of engineering materials ...
Stylianos Kechagias   +4 more
wiley   +1 more source

Henstock integral and Dini-Riemann theorem

open access: yesLe Matematiche, 2009
In [5] an analogue of the classical Dini-Riemann theorem related to non-absolutely convergent series of real number is obtained for the Lebesgue improper integral. Here we are extending it to the case of the Henstock integral.
Giuseppe Rao, Francesco Tulone
doaj  

Aumann Fuzzy Improper Integral and Its Application to Solve Fuzzy Integro-Differential Equations by Laplace Transform Method

open access: yesAdvances in Fuzzy Systems, 2018
We introduce the Aumann fuzzy improper integral to define the convolution product of a fuzzy mapping and a crisp function in this paper. The Laplace convolution formula is proved in this case and used to solve fuzzy integro-differential equations with ...
Elhassan Eljaoui   +2 more
doaj   +1 more source

Hydrogel Confinement Strategies for 3D Cell Culture in Microfluidic Systems

open access: yesAdvanced Materials Technologies, EarlyView.
Hydrogel confinement structures are key to organizing 3D cell cultures in microfluidic devices. This review classifies five structural strategies (micropillar, phaseguide, porous membrane, stepped‐height, and support‐free) and examines their trade‐offs alongside fabrication methods.
Soohyun Kim, Min Seok Lee, Sung Kyun Lee
wiley   +1 more source

Analog of Dini-Riemann theorem for non-absolutely convergent integrals

open access: yesLe Matematiche, 2007
An analogue of classical Dini-Riemann theorem related to non-absolutelyconvergent series of real number is proved for the Lebesgue improper integral.
Giuseppe Rao, Francesco Tulone
doaj  

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