1566-1199/$ see front matter 2009 Elsevier B.V doi:10.1016/j.orgel.2009.06.020 * Corresponding author. Tel.: +886 35731955. E-mail address: [email protected] (H.-F. M All-solution-processed multilayer blue small molecular organic light-emitting diodes are fabricated by blade coating method. Fluorescent blue host,1-(7-(9,90-bianthracen-10-yl)9,9-dioctyl-9H-fluoren-2-yl)pyrene, and blue dopan...

Nitrogen management practices have an effect on crop yields but they can also have a negative impact on the environment. Practices such as banding fertilizer and/or split-applying total nitrogen needs per acre offer a more efficient use of nitrogen by significantly reducing nitrate leaching potential. Heavy rains occurring when plants are small and nitrogen demands are low can also increase nit...

In this paper, the pore filling of spiro-OMeTAD (2,2(,7,7(-tetrakis-(N,N-di-pmethoxyphenylamine)9,9(-spirobifluorene) in mesoporous TiO2 films is quantified for the first time using XPS depth profiling and UV–Vis absorption spectroscopy. It is shown that spiro-OMeTAD can penetrate the entire depth of the film, and its concentration is constant throughout the film. We determine that in a 2.5-mm-...

Permethrin is the most popular synthetic pyrethroid insecticide in agriculture and public health. For the development of the enzyme-linked immunosorbent assay (ELISA) to evaluate human exposure to permethrin, the glycine conjugate (DCCA-glycine) of a major metabolite, cis/trans-3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropane-1-carboxylic acid (DCCA), of permethrin was established as the target a...

Abstract In this work, copper and zirconium were added into the Ti(Al)N matrix to form deposited on TiAl(Cu, Zr)N coating using RF magnetron sputtering system in order improve mechanical, wear performance, antibacterial activity. Results revealed that coatings have a dense structure with (111) preferential orientation. The exhibited fcc-TiN structure, whereas addition of Zr Cu induced appearanc...

High-entropy alloys (HEAs) are promising structural materials due to their excellent comprehensive performances. The use of mechanically alloyed powders to deposit HEA coatings through atmospheric plasma spraying (APS) is an effective approach that can broaden the application areas of the HEAs. In this paper, a ductility-brittleness AlCoCrFeNiSi system was chosen as an object of study, and the ...

in this research controlled coating of magnetite (fe3o4) nanoparticles with sio2 was investigated. the fe3o4 nanoparticles were synthesized via chemical co-precipitation and then coated by silica according to stober method. effects of tetra ethyl ortho silicate (teos) concentration and ethanol to teos on the coating thickness were investigated. x-ray powder diffraction, fourier transform infrar...

The studies are focused on the properties of multilayer composite coating based (Ti,Y,Al)N system with high content yttrium (about 40 at.%) (Y). hardness and elastic modulus were defined, resistance to fracture was studied during scratch testing. Two cubic solid solutions (fcc phases), including c-(Ti,Y,Al)N c-(Y,Ti,Al)N, formed in coating. investigation wear (Ti,Y,Al)N-coated tools turning ste...

A nanostructural hydroxyapatite (HA) coating was deposited to the porous Ti6Al4V acetabular cup implants using a room temperature electrophoretic deposition (EPD) process in order to achieve the improved bonding strength between the implants and cells, fast healing, good corrosion resistance and long-term stability after implantation. The micropores created in the coating will improve the bioac...

4.1.2 EXTRACTION TIME PROFILES Extraction time profiles for CBZ using C18 coatings of varying thickness (n=3 fibres) were constructed in order to determine the time required to reach equilibrium. As shown in Figure 3, using static conditions the equilibrium was reached in 60 minutes (15 μm coating) and 300 minutes (30 μm coating). These times are too long to perform equilibrium in vivo SPME sam...