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It has been pointed out that if an autocatalytic cycle produces primitive membrane chemicals, it can compose a self-maintaining proto cell. Moreover, it is known that a proto cell can divide itself spontaneously as it grows. An unsolved…

适应与自组织系统 · 物理学 2007-05-23 N. Ono , T. Ikegami

The dissipative particle dynamics (DPD) simulation method has been shown to be a promising tool to study self-assembly of soft matter systems. In particular, it has been used to study block copolymer (BCP) self-assembly. However, previous…

软凝聚态物质 · 物理学 2020-01-08 Hejin Huang , Alfredo Alexander-Katz

We present an electron tomography method that allows for the identification of hundreds of electrocatalyst nanoparticles with one-to-one correspondence before and after electrochemical aging. This method allows us to track, in…

We present the NuclearConfectionery, a modular framework for simulating the full dynamical evolution of relativistic heavy-ion collisions. Its core hydrodynamic module, CCAKE 2.0, represents a major advance over previous SPH-based…

A one dimensional (1-D), isothermal model for a direct methanol fuel cell (DMFC) is presented. This model accounts for the kinetics of the multi-step methanol oxidation reaction at the anode. Diffusion and crossover of methanol are modeled…

化学物理 · 物理学 2020-03-10 Brenda L. Garcia , Vijay A. Sethuraman , John W. Weidner , Roger Dougal , Ralph E. White

Electrofuels (e-fuels) produced from renewable electricity and carbon sources have gained significant attention in recent years as promising alternatives to fossil fuels for the transportation sector. However, the highly volatile e-fuels,…

流体动力学 · 物理学 2023-03-14 Avijit Saha , Abhishek Y. Deshmukh , Temistocle Grenga , Heinz Pitsch

The building of minimal self-reproducing systems with a physical embodiment (generically called protocells) is a great challenge, with implications for both theory and applied sciences. Although the classical view of a living protocell…

细胞行为 · 定量生物学 2009-09-29 Harold Fellermann , Ricard V. Solé

We introduce a model of the growth of a single microorganism in a self-cycling fermentor in which an arbitrary number of resources are limiting, and impulses are triggered when the concentration of one specific substrate reaches a…

动力系统 · 数学 2020-04-28 Tyler Meadows , Gail S. K. Wolkowicz

An incident fast ion in the electronic stopping regime produces a track of excitations which can lead to particle ejection and cratering. Molecular Dynamics simulations of the evolution of the deposited energy were used to study the…

材料科学 · 物理学 2013-05-29 E. M. Bringa , R. E. Johnson , R. M. Papaleo

Short blunt-ended DNA duplexes comprising 6 to 20 base pairs self-assemble into polydisperse semi-flexible chains due to hydrophobic stacking interactions between terminal base pairs. Above a critical concentration, which depends on…

软凝聚态物质 · 物理学 2012-07-17 Cristiano De Michele , Lorenzo Rovigatti , Tommaso Bellini , Francesco Sciortino

A simple model of a circularly closed dsDNA in a poor solvent is considered as an example of a semi-flexible polymer with self-attraction. To find the ground states, the conformational energy is computed as a sum of the bending and…

生物物理 · 物理学 2013-04-25 E. L. Starostin

Electrolyte solutions play critical role in a vast range of important applications, yet an accurate and scalable method of predicting their properties without fitting to experiment has remained out of reach, despite over a century of…

化学物理 · 物理学 2024-11-18 Junji Zhang , Joshua Pagotto , Tim Gould , Timothy T. Duignan

A mesoscopic coarse-grain model for computationally-efficient simulations of biomembranes is presented. It combines molecular dynamics simulations for the lipids, modeled as elastic chains of beads, with multiparticle collision dynamics for…

软凝聚态物质 · 物理学 2015-06-04 Mu-Jie Huang , Raymond Kapral , Alexander S. Mikhailov , Hsuan-Yi Chen

Derivation of macroscopic models for advection-diffusion processes in the presence of dominant heterogeneous (e.g., surface) reactions using homogenisation theory or volume averaging is often deemed unfeasible due to the strong coupling…

偏微分方程分析 · 数学 2020-06-24 Federico Municchi , Matteo Icardi

In High Energy Physics simulations play a crucial role in unraveling the complexities of particle collision experiments within CERN's Large Hadron Collider. Machine learning simulation methods have garnered attention as promising…

数据分析、统计与概率 · 物理学 2024-06-06 Mikołaj Kita , Jan Dubiński , Przemysław Rokita , Kamil Deja

We study DNA self-assembly and DNA computation using a coarse-grained DNA model within the directional dynamic bonding framework {[}C. Svaneborg, Comp. Phys. Comm. 183, 1793 (2012){]}. In our model, a single nucleotide or domain is…

软凝聚态物质 · 物理学 2012-06-13 Carsten Svaneborg , Harold Fellermann , Steen Rasmussen

Stochastic reaction-diffusion processes may be presented in terms of integrable quantum chains and can be used to describe various biological and chemical systems. Exploiting the integrability of the models one finds in some cases good…

凝聚态物理 · 物理学 2007-05-23 Gunter M. Schütz

In a previous study, dissipative particle dynamics simulation was used to qualitatively clarify the phase diagram of the amphiphilic molecule hexaethylene glycol dodecyl ether (C12E6). In the present study, the hydrophilicity dependence of…

软凝聚态物质 · 物理学 2015-06-25 Hiroaki Nakamura , Yuichi Tamura

Catalytically active macromolecules are envisioned as key building blocks in development of artificial nanomotors. However, theory and experiments report conflicting findings regarding their dynamics. The lack of consensus is mostly caused…

统计力学 · 物理学 2022-09-15 Artem Ryabov , Mykola Tasinkevych

Molecular electronics and other technologies whose components comprise individual molecules have been pursued for half a century because the molecular scale represents the limit of miniaturisation of objects whose structure is tuneable for…