Materials Literature
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PLGA Hollow Fibre Membrane Scaffolds and Serum Protein Interactions RJ Shipley & MJ Ellis Christ Church, Oxford Centre for Industrial and Applied Mathematics, University of Oxford, UK Department of Chemical Engineering, University of Bath, UK INTRODUCTION: To enable tissue engineering systems to be viable on a clinica…
A carbon nanotube (CNT) field emitter based miniaturized X-ray tube is being developed for X-ray analyses in future planetary explorations. We designed and manufactured the first prototype model of the small X-ray tube, and evaluated its electric and spectral performance. More than 100µA of electron current from the C…
Properties of Sr 7 Nb 13 O 36 /Nb 2 O 5 /Sr 7 Nb 13 O 36 laminated films for gigabit memory capacitors were investigated. The equivalent oxide thicknesses (EOT), dielectric constant, band gap and leakage current for a single layer Sr 7 Nb 13 O 36 having 10 nm film thickness were 1.12 nm, 34.8, 4.45 eV and 3×10 -9 A/cm…
Thermal oligomerization of nylon 6 and poly(ethylene terephthalate) was conducted in stearic acid at 300-335 °C under atmospheric pressure. Since stearic acid plays the roles of solvent, medium for thermal conduction, and reactive reagent at the same time, the oligomerization reaction can proceed only by adding steari…
We report the design of a room-temperature (RT), continuous-wave (cw) Cr 4+ :Y 3 Al 5 O 12 (Cr 4+ :YAG) double-clad crystal fiber (DCF) laser grown by a codrawing laser-heated pedestal growth technique using a steady-state lumped model with a Lagrange multiplier optimization method. We demonstrate that the proposed op…
The United States has long supported a strong international safeguards system and for many years has served as the foremost supplier of technology, equipment, and training to the International Atomic Energy Agency (IAEA). In doing so, it drew in many instances on DOE sponsored R&D and training that was directed toward…
Thesis (Ph.D.)--Wichita State University, College of Liberal Arts and Sciences, Dept. of Chemistry
info:eu-repo/semantics/nonPublished
Οι μοριακές πλειάδες των παραμαγνητικών 3d μετάλλων σε ενδιάμεσες οξειδωτικές βαθμίδες συνεχίζουν να προσελκύουν το ενδιαφέρον πολλών ερευνητικών ομάδων παγκοσμίως. Το αντικείμενο της παρούσης Διατριβής είναι η παρασκευή και ο χαρακτηρισμός πλειάδων του χαλκού(ΙΙ) με διάφορους συνδυασμούς υποκαταστατών. Η Διατριβή δια…
The paper is devoted to identification of the hysteresis behavior of materials by using a coupled Bouc-Wen- Preisach model. The material is view as an aggregate of grains which act as rigid vibrating units, while the contacts between them - the bond system constitute a set of interfaces that control the behavior of th…
The sintering and high frequency electro-magnetic properties of Ba-hexagonal ferrite were investigated. All samples of the Ba-hexagonal ferrite were prepared by the conventional mixed oxide method and sintered at 1150℃∼1400℃. From the X-ray diffraction patterns of sintered Ba-hexagonal ferrite, the Ba₃Co₂Fe₂₄O₄₁ phase…
This study proposes a composite right/left-handed transmission line (CRLH-TL) that permits switching between the right-handed (RH) and left-handed (LH) modes using single crystalline silicon (SCS) RF MEMS switches. It is possible to change modes from the RH to LH mode, or vice versa, by controlling the admittance of c…
PbO-As 2 O 3 glasses containing different concentrations of NiO ranging from 0 to 1 mol% (in steps of 0.2) were prepared. The optical absorption and thermoluminescence have been carried out on these glasses. The analysis of the optical absorption spectra indicates the presence of Ni 2+ ions in both tetrahedral and oct…
In the present study, two sets of vanado-tellurite glasses doped with Li 2 O and Li 2 O-K 2 O have been prepared by the melt quenching method. AX conductivity was measured using in the frequency range 50Hz to 5MHz and temperature from 300 to 525K. By non-linear regressional analysis of the measured total conductivity,…
Thin-gauged 3% Si-Fe sheets having a high magnetic induction of over 1.9 T have been developed for the purpose of applications where operation frequency is higher than power frequency. In order to clarify requirements of iron loss characteristics for the applications, iron loss characteristics of the newly developed s…
Inkjet technology has various merits as a direct patterning process in plenty of industrial applications, but critical issue such as coffee ring effect should be overcome for the application to an industrial manufacturing process. In this paper, we introduced the morphological analysis of inkjet printed pattrerns on t…
This work addresses questions brought up concerning the mechanisms associated with fatigue crack growth retardation and/or arrest within the nickel bond layer in duplex 2¼ Cr-1Mo steel superheater tubes. Previous work performed at the Idaho National Laboratory (INL) indicated that the nickel bond layer did not functio…
The composites were fabricated by adding 30, 35, 40, 45[vol.%] Zirconium Diboride(hereafter, ZrB₂) powders as a second phase to Silicon Carbide(hereafter, SiC) matrix. The physical, mechanical and electrical properties of electroconductive SiC ceramic composites by Spark Plasma Sintering(hereafter, SPS) were examined.…
Se determinaron por medidas calorimétricas a 25°C, los cambios de entalpia asociados al proceso de complejación por unión de hidrógeno de los sistemas 2,4,5-trícloro-fenol-tríetilamina, 2,4,5-trícioro-fenol-tributilamina, 2,6-dicloro-fenol-tríetilamina y 2,6-dlcloro-fenol-tríbutilamina. El estudio de cada sistema en b…
El objetivo de este estudio fue evaluar la distribucion de la tension en el borde marginal de las coronas sin metal utilizando dos materiales diferentes (ceramica y composite hibrido) y 4 disenos diferentes para la preparacion (filo de cuchillo, chamfer, chamfer mas pronunciado y hombro redondo). Todos los disenos de…