Motion parallax provides cues to the three-dimensional layout of a viewed scene and, in particular, to surface tilt and slant. For example, as a textured surface, inclined around a horizontal axis, translates horizontally relative to an observer's view point, then, in the absence of head and eye movements, the observer's retinal flow will contain a one-dimensional (1D) vertical speed gradient. ...

Background and objectives: Plumeria rubra L. (Apocynaceae) is a deciduous shrub or small tree cultivated in subtropical and tropical countries.  Its bark is prescribed to treat amoebic dysentery,   dropsy, jaundice, scabies, gonorrhea, venereal affections and wounds. In the present research, we aimed to isolate and identify the chemical constituents of the bark of ...

In this article, an image feature extraction method based on two-dimensional (2D) Mellin cepstrum is introduced. The concept of one-dimensional (1D) mel-cepstrum that is widely used in speech recognition is extended to two-dimensions using both the ordinary 2D Fourier transform and the Mellin transform. The resultant feature matrices are applied to two different classifiers such as common matri...

In the previous paper from this series, we proposed mass spectrometric fingerprinting of complex botanical samples upon the examples of the pharmacologically important phenolic acids and flavonoids selectively extracted from Salvia lavandulifolia. In this study, we explore fingerprinting efficiency with a novel two-dimensional analytical system composed of the reversed-phase thin-layer chromato...

Standing surface acoustic waves (SSAW) are commonly used in microfluidics to manipulate cells and other micro/nano particles. However, except for a simple one-dimensional (1D) harmonic standing waves (HSW) model, a practical model that can predict particle behaviour in SSAW microfluidics is still lacking. Herein, we established a two-dimensional (2D) SSAW microfluidic model based on the basic t...

A planar double gate quantum wire transistor (QWT) is proposed and demonstrated. The transistor uses a narrow wire gate placed inside the gap of a split gate to create a single one-dimensional ( 1D) quantum wire (QW) . We demonstrate theoretically and experimentally that the wire gate can create a QW potential with a better confinement and therefore larger subband separations than that in other...

In this paper, we provide solution formulae for higher order discrete two-dimensional (2D) autonomous systems. We first consider a special type of 2D autonomous systems. These systems are described by equations that satisfy a certain special property: the module of equations contains elements of the form (σn 2 + an−1(σ1)σ n−1 2 + · · · + a0(σ1))wj = 0, for each dependent variable wj , where ai(...

We show that the coexistence of a quasi-two-dimensional Fermi-surface exhibiting Landau quantisation and a charge-density wave leads to a screening of electromagnetic fields at the sample surface. Hall potential experiments demonstrate that this screening is responsible for some of the unusual phenomena observed in the high-field CDWx state of α-(BEDT-TTF)2KHg(SCN)4. The high-magnetic-field pro...

Abstract Photon Bose-Einstein condensates are characterised by a quite weak interaction, so they behave nearly as an ideal Bose gas. Moreover, since the current experiments conducted in microcavity, longitudinal motion is frozen out and photon gas represents effectively two-dimensional trapped of massive bosons. In this paper we focus on harmonically confined two dimensions, where anisotropy co...

Optical code division multiple access (OCDMA) shows limitations in terms of the inefficient bandwidth utilization and low spectral density with one-dimensional (1D) codes. To overcome these limitations, a novel design is presented using two dimensional (2D) spectral/spatial multiwavelength coding scheme. The proposed constructed 1D balanced incomplete block (BIBD) technique. Theoretical analyti...