Results 31 to 40 of about 3,969,169 (246)

The inverse along a lower triangular matrix [PDF]

, 2012
International audienceIn this paper, we investigate the recently defined notion of inverse along an element in the context of matrices over a ring.
Patricio, Pedro, José Pedro Miranda Mourão Patrício, Mary, Xavier   +1 more
core   +2 more sources

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Semi-Armendariz and Semi-McCoy rings

پژوهش‌های ریاضی, 2021
We introduce the notion of Semi-Armendariz (resp. Semi-McCoy) rings, which are a subclass of J-Armendariz (resp. J-McCoy rings) and investigate their properties. A ring R is called Semi-Armendariz (Semi-McCoy) if  is Armendariz (McCoy).
shervin sahebi
doaj  

Concordance of top 10% bigger marker effect among methodologies, in upper triangular matrix refers to additive marker effects, in lower triangular matrix refers to dominance marker effects.

, 2022
Concordance of top 10% bigger marker effect among methodologies, in upper triangular matrix refers to additive marker effects, in lower triangular matrix refers to dominance marker effects.
Felipe Lopes da Silva (8881748), Cosme Damião Cruz (4618942), Camila Ferreira Azevedo (4252774), Nick Vergara Lopes Serão (4252756), Ithalo Coelho de Sousa (12003655), Moysés Nascimento (4252765), Emilly Ruas Alkimim (11886378), Ana Carolina Campana Nascimento (4252762), Eveline Teixeira Caixeta (4620232), Isabela de Castro Sant’anna (12003658)   +9 more
core   +1 more source

2D Skeletal Muscle Thin Film Actuators Enhance Efficiency of Biohybrid Robots

Advanced Functional Materials, EarlyView.
2D skeletal muscle thin film actuators generate millinewton‐scale forces and millimeter‐scale strokes while remaining functional for over 30 days. Their force density is 20‐fold higher than 3D skeletal muscle actuators, enabling multi‐fin robots with tunable speed and multidirectional steering.
Maheera Bawa, Arielle Berman, Laura Schwendeman, Ferdows Afghah, Seanbiron Johnson, Ritu Raman   +5 more
wiley   +1 more source

Grayscale Photomasks Enable Noncontact Optical Patterning of Hydroxypropyl Cellulose Gels for Dynamic Art

Advanced Functional Materials, EarlyView.
Mask‐encoded UV exposure translates digital color information into pixel‐resolved structural‐color patterns in hydroxypropyl cellulose gels. Gaussian‐process‐guided calibration links UV processing conditions, wavelength, and mask opacity, enabling parallel fabrication of multicolor images in a single 10 s exposure.
Mengting Ye, Yunyi Zhu, Sai Sabareesh KS, Md Ashiqur Rahman Alif, Yichen Wan, Ruobing Bai, Narges Pourjafarian, Stefanie Mueller, Hongli Zhu   +8 more
wiley   +1 more source

A Unified Approach to Generalizing π-Extending and π-Baer Rings

Journal of Mathematics
This paper introduces and examines the right essentially π-Baer ring property, which serves as a new extension of the π-extending and π-Baer ring conditions. The initial phase of the study involves the development of several foundational results.
Yeliz Kara
doaj   +1 more source

Configuration‐Encoded Cell Alignment by Light‐Gated Silicon Photovoltaic Microcell Arrays

Advanced Functional Materials, EarlyView.
Light‐gated silicon photovoltaic microcells convert pulsed illumination into localized electrical cues. Arranging otherwise similar microcells into four‐lobed, six‐lobed, or circular patterns directs fibroblasts into corresponding local arrangements without wired stimulation.
Yifan Tao, Ilayda Namli, Joseph Christakiran Moses, Youdi Liu, Suihong Liu, Syed Hasan Askari Rizvi, Yasar Ozer Yilmaz, Ibrahim T. Ozbolat   +7 more
wiley   +1 more source

The isomorphisms between the upper and lower triangular matrix algebras [PDF]

, 2011
Since matrix equations with triangular matrices are easier to solve, the triangular matrices are very important in mathematics. For instance, the LU decomposition gives an algorithm to decompose any invertible matrix A into two triangular factors: a ...
Fawaz, Zahi
core   +2 more sources

THE NON-COPRIME GRAPHS OF UPPER UNITRIANGULAR MATRIX GROUPS OVER THE RING OF INTEGER MODULO WITH PRIME ORDER AND THEIR TOPOLOGICAL INDICES

Barekeng
In its application graph theory is widely applied in various fields of science, including scheduling, transportation, industry, and structural chemistry, such as topological indexes.
M. Afdhaluzzikri, I Gede Adhitya Wisnu Wardhana, Fariz Maulana, Hena Rani Biswas   +3 more
doaj   +1 more source