Investigation Study of Effectiveness Solar Renewable Energy Installation at on Site Installation

This paper presents the installation study of solar renewable energy at UMS peak. The single line diagram for the renewable energy study will be design and explain thoroughly in this paper, the design will be based on off grid system photovoltaic. The expected solar power generation will be calculated and the efficiency of the system will be discussed. The efficiency of energy storage capacity also will be discussed in this paper

Dye-sensitized solar cell utilizing degussa p25 and anatase tio2 films: Comparative study of photovoltaic performance: Effect of N719 dye concentration

This work deals with the comparison of dye-sensitized solar cell (DSSC) performance utilizing Degussa P25 and anatase TiO2 films as photoanode of the device. The effect of N719 dye concentration on the device performance has been investigated. The concentration has been varied from 0.1 mM to 0.6 mM at 0.1 mM interval. It is found that the DSSC utilizing Degussa P25 demonstrated higher performance than that of the device with anatase TiO2. The device utilizing Degussa P25 TiO2 performs the highest η of 1.28% at the optimum concentration of N719 dye that is 0.4 mM. This because this device possesses the highest absorption in the visible region and lowest leak current. The device utilizing anatase TiO2 performs the highest η of 0.447% at the optimum concentration of N719 dye that is 0.5 mM. This is due to the device has the highest absorption in the visible region, the smallest bulk and charge transfer resistance at the interface of Pt/electrolyte

Study of Effectiveness Solar Renewable Energy at Higher Altitude, 187 Meter above Sea Level

This paper presents the installation study of solar renewable energy at UMS peak. The single line diagram for the renewable energy study will be design and explain thoroughly in this paper, the design will be based on off grid system photovoltaic. The expected solar power generation will be calculated and the efficiency of the system will be discussed. The efficiency of energy storage capacity also will be discussed in this paper

Effects of modified hydrothermal nanotitania on the viability of Staphylococcus aureus

Staphylococcus aureus (S. aureus) is an important bacterium with significant pathological implications in the field of medicine. Attempting to cure bacterial infections at an advanced stage results in considerable waste of time, effort and expenditure. Thus, the prevention of such illnesses is paramount. Besides using chemical drugs to treat infections, several non-organic extracts have been tested in trials and been shown to impede the bacteria’s growth. This paper proposes that the modified hydrothermal nanotitania extract has great potential to combat this lethal organism. The viability of S. aureus was shown to be markedly reduced following the addition of nanotitania extract with 0.01%, 0.03% and 0.05% silver after 24, 48, and 72 hours. The ability of the nanotitania extract to inhibit the growth of S. aureus indicates its antimicrobial characteristics

The result of modified hydrothermal nanotitania extract to the Escherichia coli growth

Background: This research was planned to search for a potential of modified hydrothermal nanotitania extract in inhibiting the growth of bacteria commonly known in medical field. It is also aims to test this substance against common medical bacteria,Escherichia coli. Materials and methods: In this test, suspension of modified hydrothermal nanotitania extract (together with 0.01%, 0.03% and 0.05% silver) and undoping (positive control contains TiO2 and no silver) were prepared by mixing of TiO2 in Mueller Hinton Broth (MH) agar. The platecontaining the bacteria and TiO2 were observed after 24 hour, 48 hours and 72 hours incubation at 37o C for any growth of bacteria. Results: There was no growth of Escherichia coliin the plates containing the bacteria and modified hydrothermal nanotitania extract except in the control media. Conclusions: The finding suggested the modified hydrothermal nanotitania extractioninterfered the growth of Escherichia coli

Gastrulation and Body Axes Formation: A Molecular Concept and Its Clinical Correlates

During the third week of human pregnancy, an embryo transforms from two germinal disc layers of hypoblast and epiblast to three germinal layers of endoderm, mesoderm and ectoderm. Gastrulation is a complex process that includes cellular mobility, morphogenesis and cell signalling, as well as chemical morphogenic gradients, transcription factors and differential gene expression. During gastrulation, many signalling channels coordinate individual cell actions in precise time and location. These channels control cell proliferation, shape, fate and migration to the correct sites. Subsequently, the anteroposterior (AP), dorsoventral (DV) and left-right (LR) body axes are formed before and during gastrulation via these signalling regulation signals. Hence, the anomalies in gastrulation caused by insults to certain molecular pathways manifest as a wide range of body axes-related disorders. This article outlines the formation of body axes during gastrulation and the anomalies as well as the clinical implications

Mutagenic properties of modified hydrothermal nanotitania extract

Backgrounds: The mutagenic properties of modified hydrothermal nanotitania extract were carried out using the Ames test (genotoxicity). Materials and methods: The Ames test was performed on Salmonella strains (TA98, TA100, TA1535, TA1537 and TA 102) which contain mutations in several genes with and without S9 metabolic activation from rat liver using the standard assay. The materials were extracted in distilled water and the serial dilutions of concentration ranging from 313 to 5000 μg/mL were used after the incubation period of 24 h at 37° C. Results: These results suggested that all tested concentrations of the material extracts did not produce mutagenic effect in all the strains tested. Conclusions: Findings from this study showed that the modified hydrothermal nanotitania extract was non-mutagenic under present conditions

Effect of acid concentration and time of sulphate process on synthesizing the titanium dioxide from synthetic rutile waste

A fast and easy method for preparing the titanium dioxide (TiO2), using a caustic hydrothermal decomposition conditions followed with sulphate process using sulfuric acid (H2SO4), is presented. Synthetic rutile waste as a starting raw material going through these two simple processes then the effects of acid concentration and time of sulphate process were studied. The chemical composition of the product will be characterized using Electron Dispersive (EDX) and the micrographs were analyzed using a Field Emission Scanning Electron Microscope (FESEM). This study shows that a titanium dioxide (TiO2) was successfully synthesized after treated with medium acid concentration, 1M to 3M and short treatment time, 3h to 5h sulphate process