نتایج جستجو برای: moving nanoparticle

تعداد نتایج: 134798  

2014
Md. Jashim Uddin W. A. Khan Md. Ismail

Steady viscous incompressibleMHD laminar boundary layer slip flow of an electrically conducting nanofluid over a convectively heated permeable moving linearly stretching sheet has been investigated numerically. The effects of Brownian motion, thermophoresis, magnetic field, and heat generation/absorption are included in the nanofluid model. The similarity transformations for the governing equat...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2012
Bo Song Huajun Yuan Sydney V Pham Cynthia J Jameson Sohail Murad

Nanoparticles are generally considered excellent candidates for targeted drug delivery. However, ion leakage and cytotoxicity induced by nanoparticle permeation is a potential problem in such drug delivery schemes because of the toxic effect of many ions. In this study, we have carried out a series of coarse-grained molecular dynamics simulations to investigate the water penetration, ion transp...

2012
Don N. Ho Nathan Kohler Aruna Sigdel Raghu Kalluri Jeffrey R. Morgan Chenjie Xu Shouheng Sun

Iron oxide nanoparticles are a useful diagnostic contrast agent and have great potential for therapeutic applications. Multiple emerging diagnostic and therapeutic applications and the numerous versatile parameters of the nanoparticle platform require a robust biological model for characterization and assessment. Here we investigate the use of iron oxide nanoparticles that target tumor vasculat...

2011
Matteo Carpentieri Prashant Kumar

Abstract 6 An integrated experimental methodology has been applied to measure number and size distributions 7 of particles in the 5–560 nm size range in the wake of a diesel car running at different speeds. 8 Measurements were made at both ground–fixed (0.10 and 0.25 m above the ground level) and on– 9 board (in 12 different sampling locations behind the moving car) measurement configurations u...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده مهندسی برق و کامپیوتر 1393

در این پایان ‏نامه الگوریتم‏ های مختلفی برای پیش‏بینی توان تولیدی سامانه‏ های فتوولتائیک، برای بازه زمانی 10 دقیقه آینده، با استفاده از سری زمانی از داده‏ های مربوط به تولید توان این سامانه‏ ها پیشنهاد شده و مورد ارزیابی قرار می‏گیرند. نتایج نشان می‏دهد که عملکرد الگوریتم‏ها برای روز‏های آفتابی و ابری یکسان نیست. با این حال در میان این الگوریتم‏ها، نتایج شبیه‏سازی نشان می‏دهد که مدل ( auto-regr...

2008
Martin Šiler Tomáš Čižmár Alexandr Jonáš Pavel Zemánek

We study the delivery of a submicrometre-sized spherical dielectric particle suspended in water and confined in an evanescent field in the proximity of a glass–water interface. When illuminated by a single evanescent wave, the particle is propelled along the glass surface by the radiation pressure. Illumination by two counter-propagating and coherent evanescent waves leads to the formation of a...

2009
James S. Smith Dmitry Bedrov Grant D. Smith

Molecular dynamics (MD) simulations were performed on a model polymer–nanoparticle composite (PNPC) consisting of spherical nanoparticles in a bead-spring polymer melt. The polymer-mediated effective interaction (potential of mean force) between nanoparticles was determined as a function of polymer molecular weight and strength of the polymer–nanoparticle interaction. For all polymer–nanopartic...

Journal: :Plasmonics 2007
Young Sun Nolan C Harris Ching-Hwa Kiang

We review recent work on DNA-linked gold nanoparticle assemblies. The synthesis, properties, and phase behavior of such DNA-gold nanoparticle assemblies are described. These nanoparticle assemblies have strong optical extinction in the ultraviolet and visible light regions; hence, the technique is used to study the kinetics and phase transitions of DNA-gold nanoparticle assemblies. The melting ...

2012
Marie-Alexandra Neouze Marco Litschauer Michael Puchberger Johannes Bernardi

ABSTRACT A newly arising challenge in the field of nanoparticle research concerns the control and the understanding of the interparticle interactions and interparticle properties. This should allow the development of materials based on nanoparticle assemblies which represents a great opportunity to exploit nanoparticle collective properties. Although some nanoparticle networks have been reporte...

Journal: :The Journal of chemical physics 2012
Miroslava Nedyalkova Sergio Madurga Stoyan Pisov Isabel Pastor Eudald Vilaseca Francesc Mas

Molecular dynamics simulations were performed to study the ion and water distribution around a spherical charged nanoparticle. A soft nanoparticle model was designed using a set of hydrophobic interaction sites distributed in six concentric spherical layers. In order to simulate the effect of charged functionalyzed groups on the nanoparticle surface, a set of charged sites were distributed in t...

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