Searcharxiv⌕ Search
Home/Archive/arXiv

arXiv · 0710.0103

Transport Control of Eyring-Fluids along a Transversely-Corrugated Nanoannulus

Zhu Guang Hua
View original source ↗Read source document ↗Export metadata ↓

Abstract

The volume flow rates of Eyring-fluids inside the wavy-rough nanoannulus were obtained analytically (up to the second order) by using the verified model and boundary perturbation method. Our results show that the wavy-roughness could enhance the flow rate especially for smaller forcing due to the larger surface-to-volume ratio and slip-velocity effect. Meanwhile, the phase shift between the outer and inner walls of nanoannuli could tune the transport of Eyring-fluids either forward or backward when the wavy-roughness of a nanoannulus is larger enough. Our results could be applied to the flow control in nanofluidics as well as biofluidics.

Explore related subjects

cond-mat.softcond-mat.other

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Zhu Guang Hua. 2008-09-07. Transport Control of Eyring-Fluids along a Transversely-Corrugated Nanoannulus. https://arxiv.org/abs/0710.0103

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related papers

arXiv2026

Basin-volume distributions in monodisperse particle packings -- the soul of memory

Mechanically stable packings of $N$ particles in $d$ dimensions lie at the minima of an $Nd$-dimensional potential energy landscape. Starting from random initial particle positions, the system can relax using gradient-based optimization until it arrives at one of the equilibrium states; all initial conditions that end at the same minimum belong to the same catchment basin. We measure the distribution of the catchment basin volumes for indistinguishable monodisperse soft spheres in both $d=2$ and $d=3$. Ordering the basins at each system size, $N$, according to their volume, $P_N(n)$, from the largest at $n=1$ to smaller at larger $n$, we find a very wide distribution of volumes which is similar in both dimensions: $P_N(n) \approx A_Nn^{-α}$ with $α\approx 1$ which, in our most favorable cases, extends over $7$ decades. We explore aspects of the connectivity of the basins, show that their structure is highly contorted, and demonstrate how these results may be used to understand the imprinting of memories in cyclic strain studies of solids.

cond-mat.soft↗
arXiv2026

Non-Monotonic Exciton Transport Efficiency in Multi-layer Ring-shaped Quantum Networks inspired by Photosystem I

Photosystem I (PSI) is one of the most efficient natural photosynthetic complexes and serves as a structural prototype for understanding excitation energy transfer (EET) and designing artificial light-harvesting systems. Here, we construct a multilayer elliptical-conical quantum network inspired by PSI to investigate how antenna architecture affects EET. Excitation dynamics are simulated using the quantum jump approach combined with coherent modified Redfield theory (QJA-CMRT). The transfer efficiency exhibits a pronounced nonmonotonic dependence on pigment density, reaching a maximum of 0.86 at x=6 in the five-layer network. The optimal configuration contains 91 pigments, close to the number of core antenna pigments in natural PSI. Our combined density-of-states and kinetic analyses reveal that this nonmonotonic dependence originates from a trade-off: at low pigment densities, enhanced band overlap promotes energy transfer, whereas at high densities, excessive exciton delocalization compromises funnel directionality and reduces efficiency; the optimal configuration is consequently achieved at x=6. These findings provide insights into PSI antenna organization and offer guidelines for designing efficient artificial light-harvesting systems.

cond-mat.soft↗
arXiv2026

Confinement-induced toughening in delignified wood-polyacrylamide composite hydrogels

With growing interest in environmental conservation, polymer composites incorporating wood-derived materials have attracted significant attention. While research has focused extensively on hard composites utilizing delignified wood or cellulose nanofibers (CNF) and soft composites reinforced with CNF, there have been a limited number of studies on the development of soft composites that utilize the porous cellular structure of wood, with few exceptions. In this study, we fabricated soft composites by infiltrating delignified wood with polyacrylamide hydrogel and subjected them to uniaxial compression tests. The results demonstrated that these materials exhibited far superior strength and toughness compared to either delignified wood or polyacrylamide hydrogel alone. Through systematic investigation and theoretical analysis, we identified the mechanisms underlying these enhancements in strength and toughness. Specifically, in addition to the sacrificial bond breakage known to enhance toughness in double-network hydrogels, we propose that mechanical confinement, arising from the soft, incompressible hydrogel filling the hollow cell lumens, generates excess stress and acts to resist compressive deformation. This approach, which utilizes the cellular structure as a filler, suggests the potential for creating a new class of high-toughness composite materials.

cond-mat.soft↗