Results 51 to 60 of about 22,801 (289)

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

Advanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo, Mi Jeong Lee, Hyun Wook Kang, Seonhee Byeon, Soo‐Kyoung Choi, Nakwon Choi, Seung‐Woo Cho, Yoonhee Jin   +7 more
wiley   +1 more source

Plane Tangent to Quasi-Rotation Surface

Proceedings of the 30th International Conference on Computer Graphics and Machine Vision (GraphiCon 2020). Part 2, 2020
The analysis of a surface generated by quasi-rotation of a straight line around a circle is provided in the present paper. The considered case features a straight generatrix belonging to the plane of a circular axis of quasi-rotation and intersecting it in two points.
Ivan Beglov, Konstantin Panchuk
openaire   +1 more source

Electrode and Microstructure Dependence of Oxygen Diffusion in Ferroelectric Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Significant nanoscale oxygen diffusion coefficient variations are measured in ferroelectric hafnium zirconium oxide films with grain boundaries and electrode interfaces exhibiting values 104 times larger than the grain cores. Overall coefficients are 10X larger for films prepared with metal nitride electrodes compared to refractory metals. New insights
Liron Shvilberg, Thomas W. Pfeifer, Chuanzhen Zhou, Yong Kyu Choi, Duk‐Hyun Choe, Patrick E. Hopkins, Jon F. Ihlefeld   +6 more
wiley   +1 more source

Geometry of skeletal structures and symmetry sets [PDF]

, 2012
In this thesis we study the geometry of symmetry sets and skeletal structures. The relationship between a symmetry point (skeletal point) and the associated midlocus point is studied and the impact of the singularity of the radius function on this ...
Alghanemi, Azeb Zain Jafar
core  

Twin Crystal Moiré Metasurfaces for Crossing Flat‐Band Transport

Advanced Functional Materials, EarlyView.
This study introduces twin crystal moiré metasurfaces, breaking in‐plane symmetry to enable reconfigurable acoustic wave manipulation. By adjusting the twin angle and interlayer twist angle, various combinations of hyperbolic, flat bands, and elliptic states can be synthesized in the system.
Shida Fan, Chenglin Han, Kuan He, Chadi Ellouzi, Yunlong Wang, Li‐Qun Chen, Jie Sun, Zhaodong Xu, Chen Shen, Tianzhi Yang   +9 more
wiley   +1 more source

Research on calculating exchange factors of the parabolic reflector of the G-type radiant cooler by the Monte Carlo method

Zhileng xuebao, 2003
The parabolic reflector of the G-type radiant cooler is one of the most important refrigeration parts, and the key point of calculating its exchange factors to other parts by the Monte Carlo method is to simulate the location and direction of radiant ...
成珂, 李新中, 束鹏程, 陆燕, 潘雁频   +4 more
doaj   +2 more sources

A Mathematical and Numerically Integrable Modeling of 3D Object Grasping under Rolling Contacts between Smooth Surfaces

Modelling and Simulation in Engineering, 2011
A computable model of grasping and manipulation of a 3D rigid object with arbitrary smooth surfaces by multiple robot fingers with smooth fingertip surfaces is derived under rolling contact constraints between surfaces.
Suguru Arimoto, Morio Yoshida
doaj   +1 more source

Low‐Profile, High‐Gain GRIN RF Lenses via Multi‐Material Vat Photopolymerization

Advanced Functional Materials, EarlyView.
We investigate the opportunity of leveraging multi‐material vat photopolymerization printing to manufacture intricate lenses exhibiting permittivity gradients that can increase signal gain in transmitted radiofrequency signals in the X‐ and Ku‐bands. Lenses produced with more distinct low‐loss materials (up to 5) can deliver an 18 dB signal gain with a
Lawrence Romangsuriat, Alexander Peraire‐Bueno, A. John Hart, Randall M. Erb   +3 more
wiley   +1 more source

Application of landmark morphometrics to skulls representing the orders of living mammals

Hystrix, the Italian Journal of Mammalogy, 2000
<strong>Abstract</strong> Statistical analyses of geometric morphometric data have been generally restricted to the Euclidean space tangent to curved shape space.
Leslie Marcus, Erika Hingst-Zaher, Hussam Zaher   +2 more
doaj   +1 more source

XI. On the double tangents of a plane curve [PDF]

Philosophical Transactions of the Royal Society of London
Abstract It was first shown by Plücker on geometrical principles, that the number of the double tangents of a plane curve of the order m was ½m(m — 2)(m2 — 9): see the note, “Solution d’une question fondamentale concernant la théorie générale des Courbes,” Crelle, t. xii. pp. 105-108 (1834), and the “Théorie der algebraischen Curven” (
openaire   +1 more source