New and effective solitary applications in Schrödinger equation via Brownian motion process with physical coefficients of fiber optics

Using the unified solver technique, the rigorous and effective new novel optical progressive and stationary structures are established in the aspects of hyperbolic, trigonometric, rational, periodical and explosive types. These types are concrete in the stochastic nonlinear Schrödinger equations (NLSEs) with operative physical parameters. The obtained stochastic solutions with random parameters that are founded in the form of rational, dissipative, explosive, envelope, periodic, and localized soliton can be utilized in fiber applications. The stochastic modulations of structures' amplitude and frequency caused by dramatic instantaneous influences of both fibers nonlinear, dispersive, losing and noise term effects maybe very important in new fiber communications

Radon Concentrations Measurement for groundwater Using Active Detecting Method

On global scale, groundwater has been gaining increasing attention as essential and vital water resource. Its demand has been rising rapidly in the last several decades with the overpopulation and enhanced standards of living. In recent years, a great interest arose towards the natural radioactivity in water. Radon concentrations were measured in thirty groundwater samples from Qassim area, Saudi Arabia by using RAD7 an electronic radon detector connected to a RAD- H2O accessory (Durridge Co., USA). The measured radon concentration ranges from 0.76 Bq/l to 9.15 Bq/l with an average value of 3.56 Bq/l. The measured values of radon concentration are well in the range within the EPA’s maximum contaminant level (MCL) of 11.1 Bq L-1. The total annual effective dose resulting from radon in groundwater from Buraydah area were significantly lower than the UNSCEAR and WHO recommended limit for members of the public of 1 mSv year-1. The measured values for underground water from the study area suggest that the area is safe for farmers and there is no significant threat to the population as per as radon concentration is concerned

High Harmonic Spectroscopy of the Cooper Minimum in Molecules

The Cooper minimum (CM) has been studied using high harmonic generation solely in atoms. Here, we present detailed experimental and theoretical studies on the CM in molecules probed by high harmonic generation using a range of near-infrared light pulses from λ = 1.3 to 1.8 µm. We demonstrate the CM to occur in CS₂ and CCl₄ at ~42 and ~40 eV, respectively, by comparing the high harmonic spectra with the known partial photoionization cross sections of different molecular orbitals, confirmed by theoretical calculations of harmonic spectra. We use CM to probe electron localization in Cl-containing molecules (CCl₄, CH₂Cl₂, and trans-C₂H₂Cl₂) and show that the position of the minimum is influenced by the molecular environment

Three-dimensional printing of porous load-bearing bioceramic scaffolds

This article reports on the use of the binder jetting three-dimensional printing process combined with sintering to process bioceramic materials to form micro- and macroporous three-dimensional structures. Three different glass-ceramic formulations, apatite–wollastonite and two silicate-based glasses, have been processed using this route to create porous structures which have Young’s modulus equivalent to cortical bone and average bending strengths in the range 24–36 MPa. It is demonstrated that a range of macroporous geometries can be created with accuracies of ±0.25 mm over length scales up to 40 mm. Hot-stage microscopy is a valuable tool in the definition of processing parameters for the sintering step of the process. Overall, it is concluded that binder jetting followed by sintering offers a versatile process for the manufacture of load-bearing bioceramic components for bone replacement applications