نتایج جستجو برای: ctac

تعداد نتایج: 135  

Journal: :Materials 2021

Bismuth oxychloride photocatalysts were obtained using solvothermal synthesis and different additives (CTAB—cetyltrimethylammonium bromide, CTAC—cetyltrimethylammonium chloride, PVP–polyvinylpyrrolidone, SDS–sodium dodecylsulphate, U—urea TU—thiourea). The effect of the previously mentioned compounds was analyzed applying structural (primary crystallite size, crystal phase composition, etc.), m...

2008
Sajo P. Naik Igor Sokolov

We describe the synthesis of mesoporous silica fibers and discoids using disodium trioxosilicate (Na2SiO3 9H2O), a convenient silica source with cetyltrimethylmmonium chloride (CTAC) as a structure directing agent under acidic condition. The molar composition of the synthesis sol is 1Na2SiO3 9H2O:1.5CTAC:28HCl:729H2O. The fibers and discoids, both p6mm, hexagonal, are obtained at room temperatu...

2014
Antonella Borgatti Jaime F. Modiano

Aim: Despite encouraging results in syngeneic and xenografts cancer models with various inhibitors of vascular endothelial growth factor (VEGF) or its receptors (VEGFRs), beneficial effects have not been consistently translated to the clinic, underscoring the need to develop strategies that go beyond the inhibition of these targets. The purpose of this study was to generate data to support the ...

Journal: :Journal of chromatography. A 2005
Kazuaki Ito Yohichi Takayama Nobuyuki Makabe Ryo Mitsui Takeshi Hirokawa

A fast and highly sensitive ion chromatographic method using monolithic ODS columns was developed for the determination of nitrite (NO2-) and nitrate (NO3-) in seawater. Two monolithic ODS columns (50 mm x 4.6 mm i.d. + 100 mm x 4.6 mm i.d.) connected in series were coated and equilibrated with 5 mM cetyltrimethylammonium chloride (CTAC) aqueous solution. The column efficiency with 0.5 M NaCl a...

Journal: :Bioscience, biotechnology, and biochemistry 2005
Zhiyang Feng Jianhua Qi Takashi Tsuge Yuichi Oba Tetsuo Kobayashi Yoshihiro Suzuki Youji Sakagami Makoto Ojika

A bacterial artificial chromosome (BAC) library was constructed to isolate the biosynthetic gene cluster for the polyketide/peptide hybrid-type antibiotic cystothiazole A from the myxobacterium Cystobacter fuscus strain AJ-13278. Sequence analysis of a 63.9 kb contiguous region that encompasses the biosynthetic gene cluster (cta) led to the identification of a polyketide synthase (PKS)/nonribos...

Journal: :Sustainability 2022

This study introduces a new and bio-friendly adsorbent based on natural cetyltrimethylammonium chloride (CTAC)-modified prepared from wheat straw residues for the removal of Congo red (CR) tartrazine azo-anionic dyes aqueous solution. The was characterized by thermogravimetric analysis (TGA), calorimetric differential (DSC), scanning electron microscopy with energy-dispersive X-ray spectroscopy...

2003

PROJECT SUMMARY Under a previous work assignment with NCEA CTAC and OSW, RTI evaluated the Travis and Arms (1988) methodology used to predict biotransfer factors (BTF) of chemicals into beef and milk. The methodology based on the relationship between log K ow and the chemical concentrations in beef tissue and milk. RTI investigated the basis for this relationship to evaluate the level of uncert...

Journal: :IEEE transactions on radiation and plasma medical sciences 2022

A major remaining challenge for magnetic resonance-based attenuation correction methods (MRAC) is their susceptibility to sources of resonance imaging (MRI) artifacts (e.g., implants and motion) uncertainties due the limitations MRI contrast accurate bone delineation density, separation air/bone). We propose using a Bayesian deep convolutional neural network that in addition generating an initi...

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