Materials Literature
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The growing popularity of nanomaterials requires a systematic study of their effects on the human body. Silver nanoparticles (AgNPs), due to their antiseptic properties, are used in almost every area of life. The purpose of the study was to examine whether the precursor used for the synthesis of nanoparticles affects…
We report on the thin film self-assembly and post-fabrication functionalization of cylinder-forming poly(styrene- block -2-vinyl-4,4-dimethylazlactone) (PS- b -PVDMA) block copolymers (BCPs). Thermal annealing of an asymmetric BCP composition, to drive microphase separation in thin films, results in high defect densit…
Abstract We have deposited hydrogenated, silicon/nitrogen-incorporated diamond-like carbon (Si–N-DLC) films by plasma-enhanced chemical vapor deposition using hexamethyldisilazane [((CH 3 ) 3 Si) 2 NH; HMDS] as the Si and N source, and compared the tribological performance and thermal stability of the Si–N-DLC films w…
The growth of the characteristic length scales both for diffusion and viscosity is investigated by molecular dynamics utilizing the finite-size effect in a binary Lennard-Jones mixture. For those quantities relevant to the diffusion process (e.g., the hydrodynamic value and the spatial correlation function), a strong…
We report the evidence of post-annealing-induced phase transition in zinc phthalocyanine (ZnPc) ultrathin (~20 nm) films upon annealing at 200 °C. The signatures of phase transition are observed in their morphological, structural, and ultrafast spectroscopic properties. X-ray diffraction measurement shows that α-phase…
The femtosecond photoemission yield from a copper cathode and the emittance of the created electron beams has been studied in a $12\text{ }\text{ }\mathrm{MeV}/\mathrm{m}$, 100 keV dc electron gun over a wide range of laser fluence, from the linear photoemission regime until the onset of image charge limitations and c…
The evaluation of the accumulated contamination on insulators is an important problem for the timely cleaning up of insulators in recent years. For the absence of an effective contamination sensor, the flashover problem has not been effectively resolved yet. In this paper, a new equivalent salt deposit density (ESDD)…
Organic electrolyte solutions (OES)-binary mixtures of an ionic liquid (IL) with a neutral polar aprotic co-solvent-are being recognized as excellent candidate solvents for the dissolution, derivatization, and sustainable processing of cellulose. These solutions exhibit the beneficially combined properties of rapid-to…
Abstract Die cyclo‐P 4 ‐Komplexe [Cp R Ta(CO) 2 (η 4 ‐P 4 )] (Cp R : Cp′′=1,3‐C 5 H 3 tBu 2 , Cp′′′=1,2,4‐C 5 H 2 tBu 3 ) erweisen sich als prädestiniert zur Bildung von hohlen sphärischen Supramolekülen mit nichtklassischer Fulleren‐artiger Topologie. Die resultierenden Aggregate, die mittels CuX (X=Cl, Br) aufgebaut…
Abstract Die kovalente Funktionalisierung von mechanisch exfoliertem Graphenid‐Monolagen und ‐Bilagen auf SiO 2 ‐Wafern mit λ‐Iodanen und anschließende Raman‐spektroskopische/‐mikroskopische Charakterisierung haben gezeigt, dass Graphen‐Monolagen bedeutend reaktiver sind als entsprechende Bilagen. Mittels unterstützen…
Effects of nanomaterial postprocess treatments on the RF performance of a variety of carbon nanotube patch antennas are explored through fabrication and measurement. A discussion of the physical and electrical mechanisms underpinning the results of these measurements is presented. The sparse application of metal nanop…
Coiled-coil peptide-polymer conjugates are an emerging class of biomaterials. Fundamental understanding of the coiled-coil oligomeric state and assembly process of these hybrid building blocks is necessary to exert control over their assembly into well-defined structures. Here, we studied the effect of peptide structu…
Abstract A cohesive element numerical model, which reproduces the three‐dimensional microstructure of a 2.5‐dimensional silicon‐nitrogen‐oxide fibre/fabric‐reinforced boron nitride ceramic matrix composite (SiNO/BN) is applied to simulate the failure of specimens that are observed in situ during diametral compression…
Optical Signature of the Electron Injection in Ga2O3 , Lee, Jonathan, Flitsiyan, Elena, Chernyak, Leonid, Ahn, Shihyun, Ren, Fan, Yuna, Lin, Pearton, Stephen J., Kim, Jihyun, Meyler, Boris, Salzman, Joseph
We report the anomalous solubility of the pharmaceutical salt irsogladine maleate, which is associated with phase dissociation. The anomalous solubility was demonstrated by the similarity of solubility and miscibility between the salt and its base in ethanol solvent. The phase dissociation was revealed and confirmed b…
With nanotechnology dissemination, nanomaterials' (NMs) release into the environment is inevitable and may adversely affect the wastewater treatment processes. Among the NMs, the iron oxide nanoparticles have a considerable commercial potential, mainly because their magnetic properties, high catalytic ability and anti…
A method is presented in which the wetting contact angle of a sessile drop is acquired aerially using confocal techniques to measure the radius and the height of a droplet deposited on a planar surface. The repeatability of this method is typically less than 0.25°, and often less than 0.1°, for droplet diameters less…
Chloroplasts are the powerhouse organelles that host photosynthesis and other processes essential for plant life.When cells divide, chloroplasts also have to divide so that the correct number of chloroplasts per cell is maintained.This division is initiated by assembling a specific protein (called FtsZ) into filamento…
In the event of a severe accident in a nuclear power plant with the core melting, the stabilization of the molten corium is an important mitigation issue, as it can avoid late containment failure caused by basemat penetration, overpressure, or severe damage to internal structures. The related failure modes may result…
Gas-insulated metal-enclosed switchgear (GIS) was developed in the mid-1960s [1]-[5]. Compared with traditional air-insulated switchgear, the GIS concentrates the bus, isolating switch, circuit breaker, lightning arrester, transformer, and many other devices in an enclosed grounding metal case. It has many advantages…