Materials Literature
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The effects of photocaged nucleosides on the DNA polymerization reaction was investigated, finding that most polymerases are unable to recognize and read through the presence of a single caging group on the DNA template. Based on this discovery, a new method of introducing mutations into plasmid DNA via a light-mediat…
Electric propulsion systems for space exploration require materials and components that can perform reliably under a vacuum of 10−5 Torr and at temperatures of over 400 °C. Scanning electron microscopy analysis shows that when Sm–Co magnets are exposed to temperatures up to 550 °C for up to 240 h in a vacuum of 10−5 T…
The ability of a textile fabric to support load at an angle to the two principal directions is important in structures used in load bearing technical applications. Using a simple approach, the angular rupture properties of a plain woven fabric were modeled. The primary restriction imposed was that the fabric width was…
This is the first volume dedicated to the study of formal features and the expression of arguments within Phase Theory, the latest model of syntactic theorizing within the Minimalist Program. The collection addresses the nature of formal features and their role in the syntactic computation as well as checking mechanis…
Reaction bonding of silicon nitride (RBSN) technique combined with slip‐casting shaping process was used to fabricate porous Si 3 N 4 /BN ceramic composites. Si/BN slurry with chemical stability, good dispersibility, and viscosity was prepared using glycerol trioleate (GTO) covering on Si surface and poly(acrylic acid…
Within the framework of modified Ginzburg–Landau–Devonshire phenomenological theory, a ferroelectric bilayer film with a transition layer within each constituent film and an interfacial coupling between two materials has been studied. Properties including the Curie temperature and the spontaneous polarization of a bil…
The comparative study on the geometric and energetic properties, absorption spectra, and polarizabilities of cagelike ${\text{CuSi}}_{n}$ clusters ($n=9--14$; indicated by $\text{Cu}@{\text{Si}}_{n}$) was performed using the density-functional theory. The influence of a charge on these properties was investigated. The…
We report long-duration real-time observations of the dynamics of hexagonal (rodlike) directional-solidification patterns in bulk samples of a transparent eutectic alloy. A slight forward curvature of the isotherms induces a slow dilatation of the growth pattern at constant solidification rate and triggers the rod-spl…
A finite element method based on ABAQUS is employed to examine the correlation between the microstructure and the elastic response of planar Cayley treelike fiber networks. It is found that the elastic modulus of the fiber network decreases drastically with the fiber length, following the power law. The power law of e…
In this paper, we present a facile method for the noncovalent polymer functionalization of carbon nanohorns (CNHs) using a block polyelectrolyte, leading to water soluble nanohybrid colloids stable for several months. The protocol for the noncovalent functionalization makes use of the amphiphilic poly[sodium (2-sulfam…
Twinkle, twinkle: The blinking of semiconductor colloidal nanocrystals is the main inconvenience of these bright nanoemitters. There are various approaches for obtaining non-blinking nanocrystals, one of which is to grow a thick coat of CdS on the CdSe core (see picture). Applications of this method in the fields of o…
The molecular dynamics simulation with the use of the empirical Tersoff potential is applied to study the thermal characteristics of carbon nanotubes (CNTs). A thermal reservoir is devised to control the temperature and to exact the heat flux input. The quantum effect defining the precise temperature from the absolute…
SiOC glass monoliths possessing hierarchical porosity were produced by a one‐pot processing method. Periodic mesoporous organosilica (PMO) particles were embedded into a foamed siloxane preceramic polymer. After pyrolysis at 1000°C in inert atmosphere, open celled, permeable SiOC ceramic monoliths with a high amount o…
A sol−gel method for the synthesis of MgAl layered double hydroxides is presented. The sols thus obtained were submitted to several hydrothermal treatments, in presence or absence of water, in order to examine the thermal evolution of specific physicochemical properties, such as morphology, crystal size, basicity, and…
In this research, four different protein based textile materials (sheep, goat and Angora rabbit wools and silk) were dyed with sumac and the effects of proteases on their dyeing properties were investigated. According to the experimental results, it was observed that these protein based fibers could be dyed evenly wit…
Abstract The equiatomic rare earth metal zinc arsenide oxides RE ZnAsO ( RE = Y, La–Nd, Sm, Gd–Er) were synthesized in well crystallized form from the elements, arsenic, and ZnO in NaCl/KCl fluxes in sealed silica ampoules. The samples were characterized by powder and single‐crystal X‐ray data. HoZnAsO and ErZnAsO are…
Abstract Gute Mischung : Der pentagonale Polyoxomolybdat‐Baustein [Mo 6 O 21 ] n − vereinigt sich mit anderen Mo‐, V‐ und Sb‐haltigen Ionen zu einem orthorhombischen Mo‐V‐Sb‐Oxid. Die erste Einkristall‐Röntgenstrukturanalyse eines orthorhombischen Mo‐V‐Mischoxids, das als Katalysator für die selektive Oxidation leicht…
The aim of this study was to investigate how morphology of fibers is affected by plasma during the process of decolorization by a low-pressure RF plasma (gas, treatment time, and power were varied) and atmospheric pressure industrial corona (number of passages and power). CIE LAB colorimetric system was used for deter…
With a little kelp from my friends: In response to biotic and abiotic stress, the brown algal kelp Laminaria digitata releases volatile fatty acid aldehydes under laboratory conditions and in its natural environment (red). In response to 4-HHE treatment, L. digitata releases (13S)-HOTrE (green). These results support…
A unifying theoretical description of the magnetoelectric effects found in ${\text{TbMnO}}_{3}$ is proposed. The phase diagrams at zero and applied magnetic fields are worked out. They reveal that the ``giant'' dielectric effects observed in the spiral phase of ${\text{TbMnO}}_{3}$ result from an effective bilinear co…