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This study examines discrepancies in oil displacement mechanisms at equivalent interfacial tensions, focusing on the distinct contributions of surfactants and nanoparticles. It was hypothesized that similar interfacial activities would…

Fluid Dynamics · Physics 2024-11-26 Suparit Tangparitkul , Thakheru Akamine , David Harbottle , Falan Srisuriyachai , Kai Yu

The temperature dependence of the real and imaginary parts of magnetic susceptibility of YBa2Cu3O7-{\delta} superconducting thin films were researched at the electron irradiation with the energy of 2{\cdot}10<4> eV in the magnetic field of…

Superconductivity · Physics 2012-06-26 Viktor O. Ledenyov , Dimitri O. Ledenyov , Oleg P. Ledenyov

In this work we study the stabilization of the orthorhombic phases in small Hf0.5Zr0.5O2 nanoparticles (average size ~ 7 nm) annealed under different oxygen partial pressures. Concentration of the oxygen vacancies, which is determined by…

With the ability to selectively control ionic flux, biological protein ion channels perform a fundamental role in many physiological processes. For practical applications that require the functionality of a biological ion channel, graphene…

In nanoscale, motion operation of a nano-objective is usually realized by displacement load, which put forwards high requirement for ductility of material. Since pristine graphene has low ductility, once the stretching strain exceeds its…

Computational Physics · Physics 2020-09-01 Jiao Shi , Jia-Long Zhang , Xin Li , Bo Song

The crystal structures of the NaxCoO2 phases based on three-layer NaCoO2, with x=0.32, x=0.51, x=0.60, x=0.75 and x=0.92, determined by powder neutron diffraction, are reported. The structures have triangular CoO2 layers interleaved by…

Strongly Correlated Electrons · Physics 2009-11-11 L. Viciu , J. W. G. Bos , H. W. Zandbergen , Q. Huang , M. L. Foo , S. Ishiwata , A. P. Ramirez , M. Lee , N. P. Ong , R. J. Cava

Active research in nanotechnology contemplates the use of nanomaterials for engineering applications. However, a primary challenge is understanding the effects of nanomaterial properties on industrial device performance and translating…

We present results on the effects of interstitial oxygen and carbon on a bulk-niobium superconducting radio-frequency cavity. Previous experiments have shown that high-temperature (~800 $^\circ\text{C}$) nitrogen-doping plays the dominant…

Accelerator Physics · Physics 2017-02-02 P. N. Koufalis , D. L. Hall , M. Liepe , J. T. Maniscalco

The mechanical behavior of antigorite strongly influences the strength and deformation of the subduction interface. Although there is microstructural evidence elucidating the nature of brittle deformation at low pressures, there is often…

Geophysics · Physics 2021-03-17 Lars N. Hansen , Emmanuel C. David , Nicolas Brantut , David Wallis

Engineered inorganic nanoparticles are essential components in the development of nanotechnologies. For applications in nanomedicine, particles need to be functionalized to ensure a good dispersibility in biological fluids. In many cases…

Materials Science · Physics 2011-08-25 M. Safi , J. Courtois , M. Seigneuret , H. Conjeaud , J. -F. Berret

New Molecular Dynamics simulations have been carried out in order to get an insight on the physical mechanisms that determine the drift mobility of negative Oxygen ions in very dense Neon gas in the supercritical phase close to the critical…

Chemical Physics · Physics 2017-10-06 A. F. Borghesani , F. Aitken

The catalytic activity of metal nanoparticles toward nucleation of single-walled carbon nanotubes (SWCNTs) is fundamental to achieving structure-controlled growth using catalytic chemical vapor deposition (CVD). Despite the success of…

Materials Science · Physics 2025-06-16 Ben McLean , Alister J. Page , Feng Ding

The inherent existence of multi phases in iron oxide nanostructures highlights the significance of them being investigated deliberately to understand and possibly control the phases. Here, the effects of annealing at 250 0C with a variable…

The interaction of oxygen with cobalt and cobalt-based alloys has been a very important topic in the field of spintronics as it leads to enhanced orbital anisotropy and interfacial Dzyaloshinskii-Moriya interaction (DMI), which are crucial…

Nanofluids have the potential to enhance oil recovery through the structural disjoining pressure, a pressure developed when nanoparticles concentrate at the three-phase contact line. A model microfluidic porous network is used to measure…

Tunable nanopores in elastomeric membranes have been used to study the dependence of ionic current blockade rate on the concentration and electrophoretic mobility of particles in aqueous suspensions. A range of nanoparticle sizes, materials…

Soft Condensed Matter · Physics 2010-05-25 G R Willmott , R Vogel , S S C Yu , L G Groenewegen , G S Roberts , D Kozak , W Anderson , M Trau

The structure property of non-ideal Si/GaAs heterostructures that were integrated with the ultra-thin oxide (UO) tunneling interfacial layer has been systematically investigated. Si nanomembranes (NMs) were oxidized in different time…

Ionic liquids have generated interest in applications as lubricants and as additives to conventional lubricants due to their unique physical properties. In these applications, the liquid thin film can be subjected simultaneously to…

Soft Condensed Matter · Physics 2023-04-17 Kalil Bernardino , Mauro C. C. Ribeiro

Manipulating the electrostatic double layer and tuning the conductance in nanofluidic systems at salt concentrations of 100 mM or higher has been a persistent challenge. The primary reasons are (i) the short electrostatic proximity length,…

The impact of oxygen deficiency on physical properties of Na2/3CoO2-x has been investigated. From the combined thermogravimetric, magnetic susceptibility and synchrotron X-ray Laue diffraction studies, it is demonstrated that Na2/3CoO2…

Materials Science · Physics 2010-06-24 G. J. Shu , W. L. Lee , F. -T. Huang , M. -W. Chu , Patrick A. Lee , F. C. Chou