Damage resulting from the incidence of ultraviolet (UV) radiation on skin is common nowadays, with UVB (290-320 nm) and UVA (320-400 responsible for photoaging, sunburn carcinogenesis. For this reason, sunscreens represent products growing interest to prevent such damage. However, there are few organic filters marketed worldwide photostability effectiveness at wavelengths greater than 340 nm (l...

USA use that can lead to signal distortion and care must be exercised to avoid this. Several authors have reviewed the advantages of derivative spectroscopy in discriminating overlapping spectra in the quantitation of components in mixtures, and in resolving spectral information from background information [1 and 2]. Methods used to generate derivative spectra have included mechanical modulatio...

Recently, significant interest has been attracted by the potential use of aluminum nanostructures as plasmonic color filters to be great alternatives to the commercial color filters based on dye films or pigments. These color filters offer potential applications in LCDs, LEDs, color printing, CMOS image sensors, and multispectral imaging. However, engineering the optical characteristics of thes...

slow sand filters are as a proper technology for pre-treatment of raw water, with a fine and medium trubidity in small communities in developing countries. thus, with a minimum operation cost and minimum need for expest bodies have the maximum efficiency. the purpose of this research is carried out to evaluate the efficiency of two processes of horizontal flow roughing filter and vertical flow ...

In this paper, we propose a new method for blind/no-reference image quality assessment based on the logderivative statistics of natural scenes. The new method, called DErivative Statistics-based Image QUality Evaluator (DESIQUE), extracts image quality-related statistical features at two image scales in both the spatial and frequency domains, upon which a two-stage framework is employed to eval...

In this paper, we study the characterization of multiple motions from the standpoint of orientation in spatiotemporal volume. Using the fact that multiple motions are equivalent to multiple planes in the derivative space or in the spectral domain, we apply a new 3D steerable filter for motion estimation. This new method is based on the decomposition of the sphere with a set of overlapping basis...

In this paper, Gaussian and elliptic high pass filters are analyzed for image sharpening qualitatively and quantatively . The filters are implemented in frequency domain using matlab software. Experiments are performed to compare the performance of both the filters ,processed images are presented. The results demonstrate that elliptic yields better results.

This paper proposes a new switching adaptive fuzzy controller and applies it to vibration control of vehicle seat suspension equipped with semi-active magnetorheological (MR) damper. The proposed system consists three functioned filters: (1) Filter 1: model interval type 2 compensate disturbances; (2) 2: ‘switching term’ evaluate the magnitude disturbance; (3) 3: group adaptation laws enhance r...

• Connections in Rn . We have by now defined a number of different notions of differentiation: the differential of maps between manifolds, the exterior derivative of differential forms, and the Lie derivative. To begin to see the need for a new notion of differentiation (which will turn out to be the most fundamental and will apply to general tensor fields) consider first the problem of definin...