Materials Literature
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Abstract A new polymorph of layered LiCoO2 was prepared from OP4-LixNayCoO2 by ion exchange. Structural analysis by synchrotron X-ray diffraction revealed that the new polymorph of LiCoO2 is O4-type LiCoO2 whose structure corresponds to intergrowth of O2- and O3-type LiCoO2. It was also confirmed that the O4-type LiCo…
For the first time, the effect of the pH value on the coordination assemblies of a highly symmetrical multitopic ligand has been systematically investigated, indicating that higher pH values lead to increase of the coordination ability of the ligand, the amount of hydroxide incorporated into the structures, and the de…
In this paper a micromechanics approach is presented for determining the effective elastic properties of single-walled carbon nanotube (SWCNT) reinforced composites, while accounting for imperfect bonding in the matrix-inclusion interface.For this purpose, a linear spring layer of vanishing thickness is introduced to…
A relationship between processivity and synergism has not been reported for cellulases, although both characteristics are very important for hydrolysis of insoluble substrates. Mutation of two residues located in the active site tunnel of Thermobifida fusca exocellulase Cel6B increased processivity on filter paper. Su…
Proteins of 50 or fewer amino acids are poorly characterized in all organisms. The corresponding genes are challenging to reliably annotate, and it is difficult to purify and characterize the small protein products. Due to these technical limitations, little is known about the abundance of small proteins, not to menti…
This tutorial review focuses on recent developments arising from studies of optical sensors for cyanide ions, which are categorized by approaches involving cyanide selective receptors, the utilization of metal coordinated complexes, and chemodosimeters.
Abstract Polymer nanoparticles with phase-separation structures can be prepared by simple solvent evaporation process from block copolymer or polymer blend solution (self-organized precipitation (SORP)). In this report, core–shell organic–inorganic nanocomposite particles were prepared by combination of block copolyme…
Self-similar fractals are geometrically stable in the sense that, when generated by a recursive copying process that starts from a basic building block, their final image depends only on the recursive generation process rather than on the shape of the original building block.In this article we show that an analogous s…
The aim of this paper is to evaluate the risks and doses for the internal contamination of the radiochemistry staff in a high workload medical cyclotron facility. The doses from internal contamination derive from the inhalation of radioactive gas leakage from the cells by personnel involved in the synthesis processes…
Three new supramolecular architectures based on polyoxovanadates H6V10O28·2HMTA·8H2O(1), [Ni(enMe)3]2(VIV8VV7O36Cl)·2H3O (2) and [Co(en)3]2(VIV8VV7O36Cl)·2H3O (3) (HMTA = hexamethylenetetramine, enMe = 1,2′-propanediamine and en = ethylenediamine) have been prepared and characterized by elemental analyses, IR spectra,…
New supramolecular assembly patterns of zinc tetra(4-pyridyl)porphyrin into discrete (0D) cyclic tetrameric oligomers and polymeric 2D square-grids by self-coordination have been revealed.
We report numerical and experimental investigations into the nonlinear bending behavior of magnetostrictive laminated actuators under magnetic fields.Magnetostrictive actuators were fabricated from thin layers of Terfenol-D and metal, and the magnetostriction of the devices was measured.A nonlinear finite element anal…
Integrated circuits are built through a sequence of patterning steps. If the transistor shown in Fig. 6.1 is going to be contacted electrically so that it functions properly, the contact to the gate must physically connect to the gate and not short electrically to the source or drain. This requires that the pattern cr…
We have, thus far, assumed the image-forming wavefronts to be spherical. As we understand from Chapter 2, the emerging wavefronts from the pupil are in general aspherical, even if the lens surfaces are spherical. Deviation of wavefronts from sphericity is called aberration. Within the domain of geometrical optics, an…
Protein structure is critically linked to an understanding of protein function. Currently there are three approaches to determining 3-D protein structure: nuclear magnetic resonance (NMR), x-ray diffraction, and computational prediction of structure. NMR examines proteins in solution; x-ray diffraction measures scatte…
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During the past several decades, several papers have recognized the fundamental and technological limitations to uncooled photodetector performance. Various types of uncooled photodetectors have been developed and their performance has steadily improved. Photoconductors and PEM detectors were the first uncooled device…
In the visible portion of the spectrum almost all lenses and windows are made of silicate glass. It is transparent, strong, hard, resists chemical attack, and is a wonderful material overall. Unfortunately, silicate glass transmits only to about 2 mm. Therefore many different materials must be used in different parts…
Resolution enhancement techniques (RETs) will no doubt play a crucial role in the future of optical lithography. The only question is how much the resolution limit can be extended. While techniques such as attenuated phase-shifting mask (PSM) and selective line biasing are beneficial, the lithography limit can only be…
The process of designing a thin-film coating can be approached from an analytical or a scientific basis, a numerical or an actual experience, or—with the capability of present thin-film design software—perhaps with no basis (knowledge) at all. Over many decades, several design, analysis, and other related books and te…