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Purpose: This paper aims to present a black-box fuzzy system identification method coupled with genetic algorithm optimization approach to predict the mixture thermal conductivity at dissimilar temperatures and nanoparticle concentrations, in the examined domains. Design/methodology/approach: WO3 nanoparticles are dispersed in the deionized water to produce a homogeneous mixture at various nanoparticles mass fractions of 0.1, 0.5, 1.0 and 5.0 Wt.%. Findings: The results depicted that the models not only have satisfactory precision, but also have acceptable accuracy in dealing with non-trained input values. Originality/value: The transmission electron microscopy is applied to measure the mean diameters, shape and morphology of the dry nanoparticles. Moreover, the stability of nanoparticles inside the water is evaluated by using zeta potential and dynamic light scattering (DLS) tests. Then, the prepared nanofluid thermal conductivity is presented at different values of temperatures and concentrations. [ABSTRACT FROM AUTHOR]

The article discusses need to clean the reflector's optics of telescopes in order to increase its performance. Topics including concern regarding dust on the mirrors, diffraction to the image, examining the primary mirror, not using a high-pressure air jet, and rinsing off all the tap water with distilled or deionized water.

The article offers information on the uses of the high-power diode lasers. Topics discussed include use of laser in furniture making; use of laser and robotics in electronic packaging; and use of deionized water in microchannel cooling. It also mention about use of multikilowatt diode lasers for many of the applications.

The article focuses on robots designed by scientists at the University of Tokyo which also sweat in form of releasing droplets of deionized water through small holes in their aluminum frames.

The article reports that a water treatment facility in the Netherlands combining ion-exchange (IX) with ceramic membranes was presented to the water industry by PWN Technologies of Velserbroek on May 12, 2014.

The article offers information on Protego Plus HT/HTX purification solution from contamination control products provider Entegris.

Reports on the development of an ion-exchange membrane for water purification by researchers from the National Aeronautics and Space Administration. Tests; Applications.