Synthesis of TiO2 Thin Films Nanoparticles with Different Layers using Simple Sol-Gel Method

In this study, titanium dioxide (TiO2 (are synthesized by sol– gel simple method. Thin films of sol, gel, and sol- gel on relatively flat glass substrates are applied with Spin coating technique with multilayers. The optical and morphological properties (studied using AFM) of TiO2 layers show good properties, with particles diameters less than 4 nm for all prepared samples and have maximum length 62 nm for TiO2 gel thin films of three layers. The results show low roughness values for all films especially for 4 layers sol (8.37nm), which improve the application in dye sensitive solar cell (DSSc) .

PERFORMANCE COMPARISON AND OUTDOOR MONITORING OF SMOOTH AND TEXTURED COVER GLASS FOR SOLAR MODULES OF UP 6 YEARS EXPOSED

Solar modules are being built with nearly the same configuration for decades now. The front is covered with a tempered glass pane. The performance of a PV module can be increased by the texturation of the front side. One of the major requirements for front cover glasses is their high optical transmission. One option to boost transmission is texturing the front surface in a similar manner to crystalline solar cell. Another advantage of a textured glass is the fact that the reflected light beam at normal incidence has a second chance of being transmitted to the solar cell. Furthemore, the texturation of front cover glass might collect more dust and soiling than a flat glass surface. Due to this concern, the soiling effect of module covered with textured cover Alberino P glass after long-term exposed will investigated in this work. The modules presented in this work have the same characteristics in STC (i.e short circuit current, open circuit voltage and maximum power point). Electroluminescence, I-V and P-V characteristic are the method used to detect faults on the PV module. The results show a loss of PV performance with textured cover glass is l,72% higher than the reference module in other hand the increase of serie resistance is also observed in both modules

INCORPORAÇÃO DO RESÍDUO DE VIDRO PLANO EM CERÂMICA VERMELHA

The present work aims to evaluate the influence of different residue incorporations on the physical and mechanical properties of a typical red ceramic composition, replacing the sand, by using the residue from the first stage of tempered glass manufacturing. Ceramic specimens were prepared with incorporations of 0 and 20% of flat glass waste. The samples were obtained by extrusion, dried and fired at 800, 900, 1000 ° C in a laboratory oven. Analyzes of the raw materials were performed, among which the thermal, morphological, physical and chemical can be highlighted. Tests on the fired ceramic specimens were also performed. The firing properties obtained were the dry bulk density, relative density, water absorption, dry linear shrinkage, linear firing shrinkage and flexural strength. The results showed that both the increase of the glass content and the increase of temperature had a positive influence on the studied properties. Furthermore, it confirmed that the glass waste acted in order to lower the proper firing temperature. Flat glass waste is therefore a highly recommended fluxing element for the red ceramic industry, as it can be incorporated in quantities as significant as 20% without major negative effects on the properties, therefore optimizing the amount of waste used and acting positively on the properties studied, reducing energy and raw material costs.

Analysis of Actin and Focal Adhesion Organisation in U2OS Cells on Polymer Nanostructures

Background In this work, we explore how U2OS cells are affected by arrays of polymer nanopillars fabricated on flat glass surfaces. We focus on describing changes to the organisation of the actin cytoskeleton and in the location, number and shape of focal adhesions. From our findings we identify that the cells can be categorised into different regimes based on their spreading and adhesion behaviour on nanopillars. A quantitative analysis suggests that cells seeded on dense nanopillar arrays are suspended on top of the pillars with focal adhesions forming closer to the cell periphery compared to flat surfaces or sparse pillar arrays. This change is analogous to similar responses for cells seeded on soft substrates. Results In this work, we explore how U2OS cells are affected by arrays of polymer nanopillars fabricated on flat glass surfaces. We focus on describing changes to the organisation of the actin cytoskeleton and in the location, number and shape of focal adhesions. From our findings we identify that the cells can be categorised into different regimes based on their spreading and adhesion behaviour on nanopillars. A quantitative analysis suggests that cells seeded on dense nanopillar arrays are suspended on top of the pillars with focal adhesions forming closer to the cell periphery compared to flat surfaces or sparse pillar arrays. This change is analogous to similar responses for cells seeded on soft substrates. Conclusion Overall, we show that the combination of high throughput nanofabrication, advanced optical microscopy, molecular biology tools to visualise cellular processes and data analysis can be used to investigate how cells interact with nanostructured surfaces and will in the future help to create culture substrates that induce particular cell function. Graphic Abstract

A Review on Using ANOVA and RSM Modelling in The Glass Powder Replacement of The Concrete Ingredients

The flat glass powder usage instead of sand is convenient in structurally serviceable and environmentally compatible concrete. The deposits of glass powder in fibres cement compounds manufacture may add significant technical, economic and environmental necessities. The cement material and cement replacement by glass powder is chosen as parameters of the concrete. When the waste glass is fined to very fine dust, it demonstrates a cementitious characteristic due to silica content. Statistical methods and techniques are heavily used in glass powder replacement. In this paper, fifteen papers are reviewed and investigated to check the availability of using the statistical and modelling system in discussing the glass powder replacement with some other ingredients results between 2012-2021. We found that most of the papers depended on the ANOVA test to perform their work. Moreover, central composite face-centred (CFC) and Response Surface Methodology (RSM) took a part in the studies. From the numerous replicas, a quadratic prototypical was supplied with waste glass powder in the numbers of the studies that the glass waste powder is the best with its characteristics.