The applicability of Fenton and photo-Fenton processes as a pretreatment stage to combined wastewater was investigated. The wastewater was obtained from the inlet of the aeration tank in 42 Evler industrial and domestic wastewater treatment plant. The effects of different process variables such as initial Fe2 (c0 8 33 mmol L –1) and H2O2 (c0 65 165 mmol L –1) concentrations, pH (3 7.75) and rea...

The relationship between clinical characteristics of carious dentin and bacterial colonization after partial caries removal is not completely understood. The aim of this study was to compare microbial counts between categories of carious dentin color, consistency and humidity, and to evaluate the correlation between these characteristics and the presence of cariogenic microorganisms in deep cav...

Due to complex composition of leachate, the comprehensive leachate treatment methods have been not demonstrated. Moreover, the improper management of leachate can lead to many environmental problems. The aim of this study was application of Fenton process for decreasing the major pollutants of landfill leachate on Kermanshah city. The leachate was collected from Kermanshah landfill site and tre...

the purpose of this study was comparison of applicability of tertiary treatment of tehran domestic sewage with organic and inorganic coagulants or a combination of them. the far test procedure was applied utilizing: alum, polyelectrolyte wt 2600, anionic polyelectorlyte wt 3000, and nonionic polyelctrolyte wt 2690 as organic coagulants (products of calgon). the combination of lime with each of ...

Shadow and variable illumination considerably influence the results of image understanding such as image segmentation, object tracking, and object recognition. The intrinsic image decomposition is to separate the reflectance and the illumination image from an observed image. The intrinsic image decomposition is very useful to remove shadows and then improve the performance of image understandin...

We present in this paper a novel and efficient technique for the restoration of color images which are highly corrupted with impulse noise. This is a detectionestimation based approach in which outliers are first detected using a Teager-like operator followed by a locally adaptive threshold. Center pixels whose “energy” exceeds some threshold are replaced with the local marginal median. Simulat...

Color2Gray: Salience-Preserving Color Removal Amy A. Gooch Sven C. Olsen Jack Tumblin Bruce Gooch Northwestern University ∗ 1 Contrast-based Attention Model Analysis As shown in Figure 1, we conducted a preliminary evaluation of our Color2Grey algorithm via a contrastbased image attention model by Ma and Zhang [Ma and Zhang 2003]. These results indicate that the color2gray results maintain the ...

Postprocessing algorithms are usually placed in the pipeline of imaging devices to remove residual color artifacts introduced by the demosaicing step. Although demosaicing solutions aim to eliminate, limit or correct false colors and other impairments caused by a non ideal sampling, postprocessing techniques are usually more powerful in achieving this purpose. This is mainly because the input o...

In this paper a novel adaptive filtering scheme for impulsive noise removal in colour images is presented. The noise detection algorithm is based on the concept of aggregated distances assigned to the pixels belonging to the filtering window. The value of the difference between the accumulated distance assigned to the central sample and to the pixel with the lowest rank, serves as an indicator ...

Color blindness is deficiency of color vision. Due to presence of color blindness, human eye becomes unable to differentiate colors with each other. Generally reason behind color blindness is genetic but sometimes it happens due to some damage and disorder in brain and eye. Color blindness is of many types like Red-Green, Blue-Yellow etc. Red-Green color blindness is most common type of deficie...