Materials Literature
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The viscous deposition of a liquid film on the inside of a capillary has been experimentally investigated with a focus on the relationship between the film thickness and surface wettability. With distilled water as a working fluid tests were run in a 622 microns diameter glass tube with contact angles of 30° and 105°,…
Scan projection optical lithography onto small diameter shafts were investigated. It will be useful for printing complicated patterns including cross points or elbow points instead of laser direct writing. A specimen shaft coated with a resist film was synchronously rotated during the continuous linear scan of a flat…
A new X-ray CTR scattering measurement system was reported that was equipped with a Johansson monocromator to focus X-rays at a sample position. Using the focused X-rays and a two-dimensional detector, X-ray CTR scattering measurement was able to be carried out without moving any component of the measurement system. T…
We found that closely packed submicro-scale Ag islands (each ∼370 nm across and ∼90 nm in height on the average) produced not only extremely short-range fluorescence enhancement for rhodamine dye (RhB) placed only ∼1 nm away from the metal surface, but also a novel, long-range enhancement for the same dye for the meta…
ナノ粒子製剤である高分子ミセル制がん剤の臨床応用が進んでいる．シスプラチン内包ミセルであるNC-6004は，粒子径が30 nmと小さく，血流中に長期間滞留して血中にシスプラチンを徐々に放出する．このような特徴から，NC-6004にはシスプラチン治療で問題となる腎毒性の軽減や腫瘍血管のポアを通過することによる腫瘍組織への滞留性向上などが期待されている．このたび，がん患者を対象としたNC-6004の臨床第I相試験がイギリスで実施されたので，その結果について報告する．
Complexing agents in Cu chemical mechanical planarization slurries promote dissolution of the copper surface. We explored the effect of two chelating compounds, ammonium oxalate and oxalic acid, with and without hydrogen peroxide, on the dissolution and surface morphology of a Cu(111) surface at neutral pH. Without hy…
The synthesis of carbon nanofibers at low temperature was performed by plasma-enhanced chemical vapor deposition using a low-temperature CO/Ar/O2 DC plasma without any catalyst materials. At the optimum oxygen concentration of O2/CO = 0.002–0.005, vertically aligned CNFs can be synthesized at temperature as low as 90°…
Near-Field Electrospinning (NFES) is a newly developed method to fabricate continuous and ordered solid nanofibers, with smaller spinneret-to-collector-distance the behavior of viscous jet would play a more prominent effect on the deposition and morphology of nanofiber. In this paper, a 2-dimentional physical model ba…
Hexanitrohexaazaisowurtzitane (CL‐20) powders were compacted under quasi‐static and dynamic loading conditions. A uniaxial compression apparatus quasi‐statically compressed the powders to 90% theoretical maximum density with applied stresses up to 0.4 GPa. Dynamic compaction measurements using low‐density pressings ap…
Lean premixed (LP) combustion is limited to a minimum NOx of 5–9 ppm due to flame stability. To improve flame stability and lower NOx, an advanced Rich Catalytic Lean-burn technology was developed and integrated to replace only the injector pilot with catalyst modules. This system focuses on replacing the highest temp…
We study the enhanced absorption of optical radiation by molecules placed in the vicinity of spherical metal nano-particles in the realistic situation that includes perturbation of the optical field by the absorbing molecules and show that the enhancement is strong only for relatively weak and diluted absorbers.
Protein self-assembly into highly ordered fibrillar aggregates has attracted increasing attention over recent years, due primarily to its association with disease states such as Alzheimer's. More recently, however, research has focused on understanding the generic behavior of protein self-assembly where fibrillation i…
Highly crystalline, defect free ZnO nanoparticles have been synthesised by the chemical co-precipitation technique. The product sample was characterised by the X-ray diffraction (XRD) and UV-visible absorption spectra. Analysis shows that there is no indication for oxygen vacancies in the as-prepared ZnO nanomaterials…
The authors investigated the viability of UHMWPE composites for use in orthopaedic bearing applications as an alternative to crosslinking. Two composite systems were used, both based on a UHMWPE matrix: PtZr quasicrystals and Zr particle fillers. Through wear testing and impact toughness measurement it was shown that…
Abstract Quasicrystals made with Ti, Zr and Ni are good candidate materials studying the magnetic properties of aperiodic structure because the role of Ni in stabilization of the quasicrystal phase is important. Various magnetic states in quasicrystals have been reported including diamagnetism, paramagnetism, spin gla…
Tolerance factor controlled Mn-based colossal magnetoresistance (CMR) thin films (La0.7Ca0.3MnO3, La0.7Sr0.3MnO3, La0.7Sr0.11Ba0.19MnO3, and La0.7Ba0.3MnO3) which have the same content of divalent cation and Mn3+/Mn4+ ratio were deposited on amorphous SiO2/Si substrate by rf magnetron sputtering at 350°C substrate tem…
Equilibrium of Cr atoms between the surface layer and bulk of a binary alloy was analyzed. The Gibbs adsorption equation was used to obtain the dependence of the adsorption activity of atoms in the surface layer on their activity in the bulk. An approximate thermodynamic method was used to calculate the adsorption of…
We found that scanning electron microscopy (SEM) of alkali-etched cross-sections of wool fibers provides characteristic images consisting of stitch patterns (SP) and amoeba patterns (AP) at the cortex and that both the SP and AP appearing as convex structures are originated from cell membrane complexes, nuclear remnan…
Semiconductor hetero-nanocrystals with a small CdSe core and a thick CdS shell show nearly complete, suppression of Auger recombination, which allows for efficient optical gain with a very large bandwidth and record-low excitation thresholds.
Magnetic soils forming on tuffite of the region of Alto Paranaíba, Minas Gerais, Brazil, usually contain iron-rich spinels exceptionally rich in magnesium and titanium. In this work, samples of the magnetically separated portion from the sand fraction of a Brunizém (Chernossolo) and from its mother-rock material were…