In the present study, the permeabilities of CO2 and CH4 in terms of ideal and actual CO2/CH4 selectivity were investigated through the synthesized membranes of poly (ether-block-amide) (Pebax 1657) accompanied with poly (ethylene glycol) (PEG 400) and NH2-MIL125 nanoparticles. NH2-MIL125 nanofillers were added to the blend of PEG...

In this paper, covalent immobilization of beta amylase enzyme on the surface of modified magnetic nano particles (ZnFe2O4@SiO2-NH2) is reported. For doing so, at first, the magnetic nanoparticles of ZnFe2O4 were synthesized by chemical co-precipitation method and then tetraethyl orthosilicate (TEOS) and 3-aminopropyltriethoxy sil...

a r t i c l e i n f o a b s t r a c t Keywords: Digital image watermarking Integer wavelet transform Singular value decomposition Wilcoxon signed rank test Digital signature In this paper, a new robust and secure digital image watermarking scheme that can be used for copyright protection is proposed. The scheme uses the integer wavelet transform (IWT) and singular value decomposition (SVD). The...

The problem of content-based retrieval of remote sensing images presents a major challenge not only because of the surprisingly increasing volume of images acquired from a wide range of sensors but also because of the complexity of images themselves. In this paper, a prototype software system for content-based retrieval of remote sensing images, namely CBRRSI, is introduced. The main contributi...

tetanus is caused by the tetanus neurotoxin (tent), a 150 kda single polypeptide molecule which is cleaved into active two-chain molecules composed of a 50 kda n-terminal light (l) and a 100 kda c-terminal heavy (h) chains. fragment c is further subdivided into two subdomains: the proximal hcn  subdomain and the extreme carboxy subdomain, hcc. hcc is considered as an immunodominant part of tent...

In this study, the use of TiO2/SiO2 nanocomposites investigated to remove nitrate and total ironfrom wastewater. The nanoparticles and nanocomposites were characterized by the Brunauer, Emmett, and Teller (BET), Field Emission Scanning electron microscopy (FESEM), Fourier transform infrared (FTIR),  X-ray diffraction (XRD) and X-ray fluorescence (XRF). According to the BET...

In this study, the use of TiO2/SiO2 nanocomposites investigated to remove nitrate and total ironfrom wastewater. The nanoparticles and nanocomposites were characterized by the Brunauer, Emmett, and Teller (BET), Field Emission Scanning electron microscopy (FESEM), Fourier transform infrared (FTIR),  X-ray diffraction (XRD) and X-ray fluorescence (XRF). According to the BET...