Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
The single-particle and collective dynamical properties of liquid lithium have been evaluated at several thermodynamic states near the triple point. This is performed within the framework of mode-coupling theory, using a self-consistent scheme which, starting from the known static structure of the liquid, allows the t…
Gliding diatoms foul surfaces by leaving behind ‘trails’ of secreted mucilage. Atomic force microscopy (AFM) used in ‘fluid tapping’ mode enabled the topography of the soft, adhesive trails in the natural hydrated state to be imaged, and without the artefacts resulting from fixation and/or dehydration. Diatom trails c…
Conductivity almost two orders of magnitude higher than any reported previously of transparent p-type Cu–Al–O films has been achieved by plasma-enhanced (PE) CVD using Cu(dpm)2 and Al(dpm)3 precursors, followed by an annealing process. The production of such highly conductive transparent semiconductor films could over…
The M\"ossbauer spectra of ${\mathrm{Ce}}_{2}{\mathrm{Fe}}_{17}{\mathrm{H}}_{x},$ where $x=0,$ 1, 2, 3, 4, and 5, have been measured and analyzed between 4.2 and 295 K. Because ${\mathrm{Ce}}_{2}{\mathrm{Fe}}_{17}$ exhibits a helical magnetic order between 225 and 90 K and a fan magnetic order below 90 K, its M\"ossba…
High-temperature $(T)$ studies of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Ca}}_{x}{\mathrm{MnO}}_{3}$ show that charge and phonon transport is significantly suppressed in a narrow doping region of $x\ensuremath{\approx}\frac{1}{2}$ and in a wide T range up to 900 K, which accompanies anomalous broadening of x-ray Br…
In a scanning electron microscope, electron-beam irradiation of insulators may induce a strong electric field due to the trapping of charges within the specimen interaction volume. On one hand, this field modifies the trajectories of the beam of electrons subsequently entering the specimen, resulting in reduced penetr…
Lattice-dynamics and molecular-dynamics simulations based on the Born model of solids have been used to investigate the structural disorder present in the \ensuremath{\beta} phase of cristobalite. We used both shell and rigid-ion interatomic potentials and compared with available experimental data the values predicted…
Zone-plate-array lithography (ZPAL) uses an array of zone plates, combined with an array of micromechanical mirrors or shutters, to pattern features on a substrate without a mask. In this article, we investigate the patterning characteristics of individual zone plates. We show patterns printed with pixel-dose modulati…
The temperature dependence of lattice parameters and dilatation data of natural lawsonite shows anomalies at 265 K and 130 K. The spontaneous strains are relatively small (a few per mill) and the components of the strain tensor allowed in the respective point groups show almost tricritical behaviour. At temperatures b…
Degradation of fatty acids having cis-double bonds on even-numbered carbons requires the presence of auxiliary enzymes in addition to the enzymes of the core beta-oxidation cycle. Two alternative pathways have been described to degrade these fatty acids. One pathway involves the participation of the enzymes 2, 4-dieno…
Gap-filling dynamics of several different species of additives for copper electrodeposition was investigated by monitoring the cross section of a partially filled copper profile on the scanning electron microscopy photo. The filling ration Δy/Δx between “bottom-up” with “sidewall shift” was found to be proportional to…
Ba 2 Bi 4 Ti 5 O 18 single crystals were grown, and their dielectric permittivity, conductivity, and ferroelectricity were investigated along the a ‐(or b ‐)axis and the c ‐axis separately. The dielectric permittivity at 1 MHz along the a ‐(or b ‐)axis was 2000 at the Curie temperature (360°C); this value was 8 times…
The transverse perforation impact behavior of flax mat-reinforced polypropylene (PP) composites with additional discontinuous cellulose (LyocelliTM, L) and discontinuous glass (G) fiber mat was investigated at a constant reinforcement content (50 wt.%). The resistance to perforation impact of the PP/flax composite was…
To evaluate the contribution of the amino acid residues on the surface of a protein to its stability, a series of hydrophobic mutant human lysozymes (Val to Gly, Ala, Leu, Ile, Met, and Phe) modified at three different positions on the surface, which are located in the alpha-helix (Val 110), the beta-sheet (Val 2), an…
This work investigated the effects of using ultrasound and pH-value adjustment on the microbial density levels in sewage sludge, with total coliform and heterotrophic-plate-count (HPC) bacteria as the microbial indices. Application of ultrasound at a high intensity level could sufficiently disinfect both the total col…
Liposomes, that are biodegradable and essentially non-toxic, can encapsulate both hydrophilic and hydrophobic materials, and are utilized as drug carriers for drug delivery systems (DDS). Recent progress in gene technology provides a novel modality of therapy for various diseases with a variety of newlydeveloped catio…
The change of structure of tetrahedral amorphous carbon (ta-C) films after nitrogen incorporation, particularly at a high concentration, was studied by near edge x-ray absorption fine structure (NEXAFS) spectroscopy and it was found to be very close to pyridine. The π* peak at the N K (nitrogen K) edge was decomposed…
The crystal orientation dependence of pore formation in Si provides important information on pore formation mechanisms. In addition, the anisotropy of macropores is an important parameter for applications, especially for the microstructuring of silicon. The dependence of the macropore morphology on the orientation of…
We analyze the effect of polydispersity in the arm number on the effective interactions, structural correlations, and phase behavior of star polymers in a good solvent. The effective interaction potential between two star polymers with different arm numbers is derived using scaling theory. The resulting expression is…
Electron beam direct-write lithography systems are capable of meeting the resolution requirements of all future ITRS nodes and have a significant cost of ownership advantage over masked technologies, but these systems typically have very poor throughput due to space charge limitations. Ion Diagnostics has developed a…