Materials Literature
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In the framework of London theory we show that fractional vortices in two-component superconductors can be stabilized near the surface. Consequently the process of vortex entry into the superconductor consists of several steps, while the external magnetic field increases from zero. At the first stage only vortices in…
In reply to the Comment by Ramasubramaniam regarding our article [Phys. Rev. B {\bf 81}, 241412(R) (2010)] we clarify that our results are indeed valid provided that out-of-plane atomic relaxations are inhibited, as it may occur in the technologically relevant case of supported graphene sheets. We argue that the Comme…
Proses gurdi dimaksudkan sebagai proses pembuatan lubang bulat dengan menggunakan mata gurdi. Pahat yang aus menyebabkan kekasaran permukaan lubang menjadi semakin tinggi. Cairan pendingin digunakan dengan tujuan untuk membersihkan atau membawa geram, menurunkan gaya pemotongan dan keausan tepi pahat, memperpanjang um…
The Landau theory of phase transitions of Ba0.8Sr0.2TiO3 thin film under external electric field applied in the planar geometry is developed. The interfacial van-der-Waals field Ez=1.1x10^8 V/m oriented normal to the film-substrate interface was introduced in to the model calculation to explain experimentally observed…
Pada proses pemotongan logam, gesekan antara benda kerja dengan pahat akan menimbulkan panas, sehingga temperatur pahat terutama bidang aktif pahat akan sangat tinggi. Hal ini akan mengakibatkan terjadinya keausan pahat dan jika keausan terjadi secara terus menerus akan memperbesar gaya pemotongan akibatnya kualitas p…
The Josephson current through a long s-wave superconductor/weak ferromagnet/s-wave superconductor weak link is studied theoretically in the regime of nonequilibrium spin-dependent occupation of electron states in the ferromagnetic intelayer. While under the considered nonequilibrium conditions the standard supercurren…
Meer dan 70 modellen van sluitzegels voor omsnoering met staalband of kunststofband, verschillende afmetingen en uitvoeringen. Sluitzegels voor onsnoering met staalband Model Breedte Lengte Dikte Uitvoering Profiel Beeld Type Blank Gelakt Galva E-Z Roestvrij CI 10mm 13mm 16mm 19mm 28mm 0,4mm ■ LI 19mm 25mm 32mm 56mm 0…
A model based on optical phonon scattering is developed to explain\npeculiarities in the current drive, transconductance, and high speed behavior\nof short gate length GaN transistors. The model is able to resolve these\npeculiarities, and provides a simple way to explain transistor behavior in any\nsemiconductor mate…
ABSTRACTCorrosion inhibition of benzotriazole (BTA) for 70/30 brass in 0.1 M NaCl has been evaluated by means of electrochemical polarization and solution analysis.For comparision electrochemical polarization curves were also obtained with zinc and copper electrode. Brass and copper have the same electrochemical prope…
The model proposed by Ahmad and Tripathi (2006 Nanotechnology 17 3798) demonstrates that the field enhancement factor of carbon nanotubes (CNTs) reaches a maximum at a certain length. Here, we show that this behavior should not occur and suggest our correction to this model.
We have systematically investigated the structural property and electrical structures of the transition metal intercalated titanium disulfide compound Fe$_x$TiS$_2$ ($0\leq x\leq0.33$) from angle-resolved photoelectron spectroscopy with tunable polarized synchrotron radiation. The effect of intercalation on the energy…
The size effect in ferroelectrics is treated as a competition between the geometrical symmetry of the ferroelectric sample and its crystalline symmetry. The manifestation of this competition is shown to be polarization rotation, which is driven by temperature and/or size variations, thus providing a qualitative indica…
Interactions between initially planar, piston supported compaction waves in heterogeneous energetic solids and macro-scale rigid boundaries were computationally examined for a wide range of piston impact speeds (20 ≤ Up ≤ 500 m/s) and initial solid volume fractions of the material (0.73 ≤ ϕ0 ≤ 0.90). The response of t…
Contact angle hysteresis of polystyrene and four modified polystyrenes, containing polar sulfonic acid and carboxylic acid groups, have been evaluated in a two-phase liquid system. Water contact angles have been measured in octane and octane contact angles have been measured in water. It has been demonstrated that wet…
In this work, high field carrier transport in two dimensional (2D) graphene is investigated. Analytical models are applied to estimate the saturation currents in graphene, based on the high scattering rate of optical phonon emission. Non-equilibrium (hot) phonon effect was studied by Monte Carlo (MC) simulations. MC s…
Most stress corrosion cracking (SCC) mechanisms initiate from localised corrosion (pitting, intergranular attack, de-alloying), which provides local stress concentration. Alloys are generally more susceptible to SCC than pure metals because selective dissolution or oxidation is possible. De-alloying involves the selec…
Co-evaporated 'Hole-Confining'
The efficiency of the discrete element method for studying the fracture of heterogeneous media has been demonstrated, but it is limited by the size of the computational model. A coupling between the discrete element and the finite element methods is proposed to handle the simulation of impacts on large structures. The…
We report on direct observation of spatial and optical luminescence switching (on and off condition) due to collapse of the coupling conditions of quantum dots (QDs) pair. In particular, one could observe that the relative intensities between two adjacent luminescence peaks and spatial images of individual QDs located…
Hydrolysis of isobutyric anhydride suffers from the mass transfer issues associated with the inherent partial miscibility of the participating reactants in a certain concentration−temperature space. Hence, activity-based models are developed and used to describe the phase equilibrium behavior and the kinetics. In this…