Showing papers in "Journal of King Saud University - Science in 2017"

TL;DR: Bimetallic nanoparticles (BNPs) are formed by the combination of two different metals and have attracted huge attention in both technological and scientific view because BNPs shows better properties as mentioned in this paper.

TL;DR: In this paper, the groundwater potential zones were delineated by adopting a frequency ratio (FR) model, where land use and land cover, hydro geomorphology, slope, geology, lineament density, drainage density, and ground water level were the thematic factors considered for groundwater potential zone mapping.

TL;DR: In this paper, an alternative method for temperature prediction by combining the wavelet technique with an autoregressive integrated moving average (ARIMA) model and an artificial neural network (ANN) applied to monthly maximum and minimum temperature data is presented.

TL;DR: In this article, the effect of slip condition on MHD free convective flow of non-Newtonian fluid over a nonlinearly stretching sheet saturated in porous medium with Newtonian heating is analyzed.

TL;DR: The present study on essential oils deriving from the Mentha × piperita L. species could be used in antimicrobial activity as a natural source.

TL;DR: Alkaloids, tannins and terpenoids were the secondary metabolites most frequently found, while flavonoids, quinones, anthraquinones, steroids and saponins were present in less proportion.

TL;DR: A number of suggestions on how to achieve the systematization of data on the most relevant physico-chemical parameters, which govern and control the interaction between carrier and drug, are offered to give the reader an overview of the most significant advances in this field.

TL;DR: In this paper, a two-level factorial design was used to evaluate the significant extraction parameters in achieving higher recovery yield of extract, total phenolic content, total flavonoid content, and antioxidants from Vernonia amygdalina leaf.

TL;DR: In this paper, the effect of process parameters on material removal rate (MRR) and surface roughness (Ra) in wire electric discharge machining of Inconel 625 was investigated.

TL;DR: In this paper, the authors aimed to the biosynthesis of silver nanoparticles (AgNPs) using Lactobacillus mixture and evaluating their antioxidant activity, using Ultra Violet (UV)-Visible spectrophotometry Scanning electron microscope (SEM) was used to detect the size, shape and distribution of AgNPs and occurrence of elemental silver was analyzed by Energy Dispersive-X-ray Spectroscopy (EDS) analysis.

TL;DR: In this article, the effects of suction as well as thermal radiation, chemical reaction, viscous dissipation and Joule heating on a two-dimensional natural convective flow of unsteady electrical magnetohydrodynamics (MHD) nanofluid over a linearly permeable stretching sheet were investigated.

TL;DR: This review focused on the promising potential of green-fabricated nanoparticles as toxic agents against mosquito young instars, and as adult oviposition deterrents, and analyzed current evidences about non-target effects of these nanocomposites used for mosquito control.

TL;DR: This short review outlines the current state of the art in the field of EH-MEMS, with a specific focus on vibration EHs, i.e. converters capable to convert the mechanical energy scattered in environmental vibrations, into electric power.

TL;DR: In this article, the effect of laser peening without coating on the hardness of an aluminium alloy was investigated and the Vickers micro-hardness test was used to study the hardness with different wavelengths and laser intensities.

TL;DR: Three effective-most plants in controlling MDR-UTI bacteria in vitro were A. acuminata, P. granatum and S. febrifuga, which can be promoted as complementary medicine.

TL;DR: The investigated complexes have effective cytotoxicity against growth of carcinoma cells with respect of its imine ligand and have a stronger antimicrobial activity in comparison with its ligand.

TL;DR: In this article, a landslide hazard evaluation and zonation (LHZ) was carried out in Jeldu District in Central Ethiopia, about 156 km West of Addis Ababa, the capital city of Ethiopia.

TL;DR: A comprehensive review on governing parameters and various stability analysis techniques for plane mode of failure in rock slopes is presented in this paper, which can be broadly classified as conventional and numerical methods.

TL;DR: In this paper, the authors explored the dyeing ability of anthraquinone colorants extracted from Rubia cordifolia lin. roots and proposed a sustainable approach for textile dyeing with a systematic protocol is followed with the effect of AlCl3 and CaCl2 metallic mordants.

TL;DR: In this paper, a new correlation for calculating the effective viscosity of nanofluids is developed, which is based on the effect of interfacial layer on the nanoparticle, and 75% of them are within the correlation coefficient 078-1 and mean deviation less than 5% of the variance.

TL;DR: In this article, an eutectic Zn-3Mg alloy was homogenized at 370°C for 15h and quenched in water before subjected to 2 steps ECAP process.

TL;DR: A novel and promising PHA-producing bacterial strain is reported as an additional effort to enhance the viability of a sustainable industry based on biofuels and biopolymers.

TL;DR: Two-mode KdV (TMKdV) was introduced in this article, which represents the propagation of two-wave modes in the same direction simultaneously, and a finite series of degree n in terms of a Jacobi elliptic function was suggested as a possible solution for the TMKDV.

TL;DR: These methods have proven suitable to optimize cellulase production by a thermophilic Bacillus by using response surface methodology (RSM) and 3 fold increase in cellul enzyme production was achieved by RSM model.

TL;DR: In this paper, an algorithm for approximating solutions to fractional differential equations (FDEs) in a modified new Bernstein polynomial basis is introduced, where a basic matrix equation which corresponds to a system of fractional equations is utilized, and a new system of nonlinear algebraic equations is obtained.

TL;DR: In this paper, the mechanical and tribological properties of various compositions of aluminium 6063 alloy -clay (Al-clay) composites for brake pad applications were studied, and the results of the wear tests as well as the metallographic investigation of optical, scanning electron microscopy and energy dispersive X-ray microscopy revealed an improvement in the tensile strength, hardness and wear resistance in the composites with 10−25% clays.

TL;DR: In this article, the properties of magneto-hydrodynamic boundary layer stagnation point flow of Eyring-Powell (non-Newtonian) fluid induced by an inclined stretching cylindrical surface in the presence of both mixed convection and Joule heating effects are analyzed.

TL;DR: In this paper, the operational matrix of integration for Laguerre polynomial is used to solve fractional model of Bloch equation in nuclear magnetic resonance (NMR).

TL;DR: In this paper, the laws of conservations under the similarity transformation suggested by Wang (1976) have been used to extract a highly nonlinear ordinary differential equation governing the magneto hydrodynamic (MHD) flow.

TL;DR: In this article, thermal stratification and suction/injection effects on the entropy generation and heat transfer due to convective boundary layer flow over a vertical stretching cylinder using Buongiorno's model for nanofluids were discussed.