Materials Literature
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Carbon nanotubes (CNTs) are ideal candidates as electrode materials for neuronal stimulation and monitoring devices, since they provide a high charge injection limit without significant Faradic reactions, and carbon nanotube electrodes have a high surface to volume ratio. CNTs are positioned at desired locations by ch…
There are many models and failure criteria have been developed to predict the ductile fracture (DF) in metal plastic deformation. But usually, it is difficult to select a suitable model and the corresponding criterion from them. So, finding a way to identity their applicability and reliability is useful for selecting…
High crystalline quality Al0.40In0.02Ga0.58N film has been achieved on GaN buffer by metalorganic vapor phase epitaxy (MOVPE). The metal-semiconductor-metal (MSM) structured visible blind photodetector was fabricated based on the Al0.40In0.02Ga0.58N film. The current-voltage measurement indicated an obvious Schottky b…
In the present work, polycarbonate (Makrofol KG) foils of thickness 10 µm were irradiated with Ag+13 ions (180 MeV) at a fluence of 2E7 ions/cm2. Damages created by ion passage (called the latent tracks) in films were later chemically etched in an aqueous solution of 6 N NaOH solution. Scanning electron microscopy (SE…
Today the only way to survive in competitive markets is through innovation and creativity, which play an important role in the success of an organization. In comparison with the conventional projects, innovative projects are challenging and impose enormous costs to companies and organizations, so classifying and break…
Korea Domestic Agency (KO-DA) was responsible for the procurement of the ITER blanket modules 1, 2, and 6 in the original procurement allocation. According to the procurement reallocation of the blanket system, Korea will procure the blanket shield block in place of the blanket first wall. Nevertheless, several R&D ac…
High-quality large single crystals of Ni- and Zn-doped Bi 2 Sr 2 Ca(Cu 2−x M x )O 8+δ (M = Ni or Zn) have been successfully grown by the traveling solvent floating zone technique. The single crystals are characterized by compositional and structural analyses and their physical properties are investigated by magnetic s…
Synthetic and biomass fueling are now considered to be near-term aviation alternate fueling. The major impediment is a secure sustainable supply of these fuels at reasonable cost. However, biomass fueling raises major concerns related to uses of common food crops and grasses (some also called "weeds") for processing i…
The effects of M (M=Mn, Pr, Sn, Zr, Se, Te) doping on the redox thermodynamics of CeO2 have been investigated using the first-principles density-functional theory considering the on-site Coulomb interaction within the PBE+U scheme. Two different mechanisms for the O-vacancy formation in doped CeO2 have been clarified.…
This article reports on the new results on phase transitions, mesomorphic and electro-optical properties of new equimolecular mixture of calamitic and bent-core thiobenzoates. Two following liquid crystals were the components of the binary mixture: (S)-(+)-4-(1-methylheptyloxy)biphenyl 4 -octylthiobenzoate (MHOBS8) ha…
The toxicity of nanomaterials has yet to be fully investigated. In particular, the interactions between nanomaterials and therapeutic drugs require further study. We investigated whether nano-sized polystyrene particles affect drug-induced toxicity. The particles, which are widely used industrially, had diameters of 5…
A conductive paint coating was prepared using a mixture of cathode waste materials (CWM) as the filler and epoxy resin as the binder. The optimum electrical conductivity of 5.33 × 10-4 S cm-1 was obtained at 25 wt% CWM. It was found that the contact of the filler improves the electrical conductivity. However, the corr…
Nascent form of random propylene/1-pentene copolymers was studied for the first time by Raman spectroscopy. For the purpose of detailed interpretation of the copolymer spectra, we investigated Raman spectra of neat PP with low and high crystallinity. It was found that the copolymer Raman spectra depend on the 1-penten…
Connecticut-based FuelCell Energy has been awarded a $3.8 million contract from the US Navy to develop and test a Hybrid Solid Oxide Fuel Cell-Battery power system for large-displacement undersea vehicle propulsion.
To further understand the hardening mechanism of austenitic manganese steel under actual working conditions, the work hardening ability was studied and the microstructures of austenitic manganese steel were observed under different impact energies. The work hardening mechanism was also analyzed. The results show that…
This paper presents an experimental measurement of ac 50 Hz flashover voltage (kV) of hydrophobic polymer insulators. Hundred thirty five different testing conditions were used to evaluate the electrical performance of hydrophobic surfaces of composite polymer insulators. The study of flashover voltages depend on the…
We study the eect of plasmon excitations in silver island lm on the optical properties of peridinin chlorophyllprotein light-harvesting complex using scanning uorescence microscopy. With this technique we can unambiguously locate areas where the biomolecules are deposited on the metallic nanostructures from the areas…
Imaging by means of Raman spectroscopy has emerged as a powerful technique in the study of various chemical processes occurring in biology. This technique is non-invasive, label-free, capable of providing molecular identity and can be performed in robust conditions. However, one major drawback is its inherently weak s…
Solid polymer electrolytes comprising poly (vinylidene fluoride-hexafluoro propylene) (PVDF-HFP), Poly (methyl methacrylate)-grafted natural rubber (MG49) and lithium salt (LiBF4) were prepared by solution casting technique. The membranes were characterized by impedance spectroscopy (EIS), fourier transform infrared s…
In the present work, the effect of the ethylene diamine tetra acetic acid (EDTA) additive on the bulk growth of unidirectional ＜001＞ potassium dihydrogen phosphate (KDP) crystal grown from an aqueous solution by the Sankaranarayanan-Ramasamy (S-R) method has been studied. The ＜001＞ oriented KDP seed crystal was mounte…