Results 31 to 40 of about 41,982 (205)

Attempts to relate the Navier-Stokes equations to turbulence [PDF]

, 1977
The present talk is designed as a survey, is slanted to my personal tastes, but I hope it is still representative. My intention is to keep the whole discussion pretty elementary by touching large numbers of topics and avoiding details as well as ...
Marsden, Jerrold E.
core  

Swelling of particle-encapsulating random manifolds

, 2008
We study the statistical mechanics of a closed random manifold of fixed area and fluctuating volume, encapsulating a fixed number of noninteracting particles. Scaling analysis yields a unified description of such swollen manifolds, according to which the
D. M. Kroll, Emir Haleva, Haim Diamant, P.-G. de Gennes, S. A. Safran, W. Helfrich   +5 more
core   +1 more source

Fluorinated Graphene‐Coated N95 Respirators for Enhanced Protection against Viral Accumulation and Transmission

Advanced Engineering Materials, EarlyView.
We develop a one‐step spray coating approach to coat the fluorinated graphene (FG) nanosheet onto the N95 respirators. The spray‐coated superhydrophobic N95 respirators can effectively repel respiratory droplets off instantaneously and prevent SARS‐CoV‐2 virus accumulation on the surface.
Fengjie He, Jiongyu Zhang, Shengjie Zhai, Changchun Liu, Hui Zhao   +4 more
wiley   +1 more source

Influence of Temperature on Scratch and Wear Properties of Technical Thermoplastics: Implications for Material Selection

Advanced Engineering Materials, EarlyView.
The share of technical thermoplastics is expected to grow further in the e‐mobility segment. In this study, a detailed temperature‐based tribological characterization of technical thermoplastics is performed. The tribological properties are discussed in terms of the dynamic mechanical properties of polymers at different ambient temperatures. A proof of
Harsha Raghuram, Thomas Koch, Vasiliki-Maria Archodoulaki   +2 more
wiley   +1 more source

Quality Enhancement of Laser Powder‐Bed Fusion Parts by Acoustically Assisted Additive Manufacturing by Laser Powder‐Bed Fusion and its Application to Lattice Structures

Advanced Engineering Materials, EarlyView.
Additive manufacturing technologies like laser powder‐bed fusion offer great design freedom and individualization of products down to a batch size of one. However, parts fabricated with this technology suffer from poor quality. Acoustic assistance during the build process can minimize these drawbacks.
Oliver Maurer, Dirk Bähre
wiley   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

The Euler-Poincaré Equations in Geophysical Fluid Dynamics [PDF]

, 2002
Recent theoretical work has developed the Hamilton's-principle analog of Lie-Poisson Hamiltonian systems defined on semidirect products. The main theoretical results are twofold: 1.
Holm, Darryl D., Marsden, Jerrold E., Ratiu, Tudor S.   +2 more
core   +1 more source

Fluid structure interaction with curved space lattice Boltzmann

, 2018
We present a novel method for fluid structure interaction (FSI) simulations where an original 2nd-order curved space lattice Boltzmann fluid solver (LBM) is coupled to a finite element method (FEM) for thin shells.
Debus, Jens-Daniel, Flouris, Kyriakos, Herrmann, Hans J., Jimenez, Miller Mendoza, Munglani, Gautam, Wittel, Falk K.   +5 more
core   +1 more source

Engineering the Hierarchical Porosity of Granular Hydrogel Scaffolds Using Porous Microgels to Improve Cell Recruitment and Tissue Integration

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
By fabricating and covalently assembling gelatin methacryloyl (GelMA) porous microgels, a new class of granular hydrogel scaffolds with hierarchical porosity is developed. These scaffolds have a significantly higher void fraction than their counterparts made up of nonporous microgels, enhancing cell recruitment and tissue integration. This research may
Alexander Kedzierski, Sina Kheirabadi, Arian Jaberi, Zaman Ataie, Catherine L. Mojazza, Marisa L. Williamson, Anton M. Hjaltason, Aneesh Risbud, Yuanhui Xiang, Amir Sheikhi   +9 more
wiley   +1 more source

Statistical mechanics approach to some problems in conformal geometry

, 2000
A weak law of large numbers is established for a sequence of systems of N classical point particles with logarithmic pair potential in $\bbR^n$, or $\bbS^n$, $n\in \bbN$, which are distributed according to the configurational microcanonical measure ...
Aubin, Aviles, Beckner, Billingsley, Branson, Branson, Branson, Caglioti, Caglioti, Campbell, Carlen, Chang, Chang, Chang, Chang, Chanillo, Chanillo, Chen, Chen, Cheng, Cheng, Chou, de Finetti, Diaconis, Dynkin, Eyink, Fröhlich, Han, Hewitt, Joyce, Kazdan, Kida, Kiessling, Kiessling, Kiessling, Kiessling, Lin, Liouville, Lundgren, Marchioro, McOwen, Messer, Michael K.-H. Kiessling, Montgomery, Montgomery, Moser, Moser, Ni, O'Neil, Onofri, Onsager, Osserman, Poincaré, Pointin, Ramsey, Saff, Sattinger, Struik, Trudinger   +58 more
core   +2 more sources