Materials Literature
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A mannitol dehydrogenase (StMDH) gene was cloned from Salmonella typhimurium LT2 (KCTC 2421) and overexpressed in Escherichia coli. It has a 1,467 bp open reading frame encoding 488 amino acids with deduced molecular mass of 54 kDa, which shares approximately 36% of amino acid identity with known long-chain dehydrogen…
Measuring the amount of water in GDL is very important, because it is very closely linked to the performance of fuel cell. Flooding can be occurred at the beginning of the start up with high current densities. In order to know the amount of water in GDL, the dew point temperature of the outlet gases are measured, and…
Mechanistic aspects of phosphorylation, dephosphorylation, pyrophosphorylation and depyrophosphorylation reactions that mimic phosphorylases, dephosphorylases, pyrophosphorylases and depyrophosphorylases have been studied in the biologically important middle pH region. The different systems monitored are; (a) the reac…
A new copper metallization process is proposed that fabricates a redistribution layer on GaAs MMICs (monolithic microwave integrated circuits). This process enables the placement of Cu bonding pads and Cu pillar bumps over an MMIC. PBO (polybenzoxazole) is used as the low-k dielectric polymer for isolation. The thickn…
We inserted a C-containing layer in a metal/Ge structure, using a chemical bath. This layer enabled the Schottky barrier height (SBH) to be modulated. The chemical bath with 1-octadecene and 1-dodecene were performed separately with Ge substrates. The ultrathin C-containing layer stops the penetration of free electron…
Small molecule solar cells with structure of ITO/ZnPc/C60/LiF/Al were fabricated by vacuum evaporation method, and thermal annealing treatment was considered to be an effective and economized approach to further improve the power conversion efficiency and lifetime of devices. The optimal annealing process was 100°C, 2…
Oblique angle deposition (OAD) is a physical vapor deposition method which utilizes non-normal angles between the substrate and the vaporizing source. It has been known that tilting the substrate changes the properties of the film deposited on it, which was thought to be a result of morphological change of the film. I…
Background: Infection represents one of the primary barriers to successful organ transplantation and an early diagnosis represent the goal of therapy. Our principal end point was to use a new assay Test EAA which has been developed to rapidly detect endotoxin acivity. Furthermore we aim to prove the validity and safet…
This research carries out non-touched anthropometric measurements on 200 male university students aged from 19-26. 10 measurements relevant to the body neck were drawn in considering the necessary measurements in the pattern design of the fashion collar, This research utilizes the SPSS software to carry out a frequenc…
Sepsis, a common cause of morbidity and mortality in critically ill patients, is associated with systemic inflammatory response syndrome due to upregulation of cyclooxygenase-2 and increase in the levels of PGE 2 . It is also associated with increase in the levels of proinflammatory cytokines like TNFα and IL-1β. Calo…
Development of chiral metamaterial (CMM) structures in order to achieve miniaturized CMMs and dual-band CMMs are aimed in this paper. In achieving the first purpose, two general ideas are proposed: using dendritic fractal geometry, and using wideband antenna designs. Based on these methods, some miniaturized CMM struc…
Polyurethane coatings are formed from a chemical reaction between a polyol and a polyisocyanate hard- ener. Two component solvent based polyurethane coatings were prepared by blending of epoxy polyol and Toluene Di Isocyanate (TDI) hardener. The composition was based on the solid contents of the hydroxyl equivalent we…
Earth abundant and non-toxic quaternary semiconductor Cu2ZnSnSe4(CZTSe) is regarded as one of the alternatives for solar cell applications due to low cost and competitive photovoltaic performance. In this study, CZTSe thin-films with different Cu and Zn/Sn composition were investigated. On the other hand, for improvin…
Very Fast Transient Overvoltages (VFTO) might result in insulation failures inside or outside Gas Insulated Switchgears (GIS), and most of them are led to by the spacer flashovers in the light of operational experiences. To get a better understanding of the discharge process, an experimental study on spacer flashovers…
In response to the need of woven fabric color-matching CAD software in small and medium enterprises, the article proposes the implementation of software system based on elementary weave structure. Using Microsoft visual C + +6.0 application development platform, through the blending ratio of the fabric, color mixing e…
The potential silica nanospring (NS) supported cobalt catalyst (Co/SiO2 -NS) for Fischer-Tropsch synthesis (FTS) was investigated, and the results were compared with those of a conventional silica gel supported cobalt catalyst (Co/SiO2-gel). Co/SiO2-gel and Co/SiO2-NS catalysts were prepared using the incipient wetnes…
У статті вирішується проблема одержання порошкового нікелевого матеріалу з пористою структурою. Встановлений вплив виду осаджувача на тип структури нікелевого матеріалу, вплив виду солі ніколу і концентрації її розчину на розмір часток нікелевого порошку
This paper presents the implementation of a beam-shifting slab (a transformation optics device) using tensor transmission-line (TL) metamaterials. The slab consists of printed unit cells exhibiting anisotropic effective material parameters, while the surrounding medium consists of printed isotropic unit cells. The mea…
A novel design of hybrid solar cell combining traditional GaAs-based solar cell with colloidal CdS quantum dots (QDs) is demonstrated. By applying CdS QDs on the surface of GaAs device, we can obtain an effective anti-reflection coating at long wavelength. Moreover, due to its strong absorption at ultraviolet range an…
In this work, Ion implantation was applied for quantitative and spatial control of Na distribution in CIGS films. Local Na-doped layer near the CIGS surface was observed in secondary ion mass spectroscopy (SIMS) depth-profile. Implantation-induced lattice displacement and recovery processes by rapid thermal annealing…