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。
Significant excitonic effects were observed in graphene by measuring its optical conductivity in a broad spectral range including the two-dimensional π-band saddle-point singularities in the electronic structure. The strong electron-hole interactions manifest themselves in an asymmetric resonance peaked at 4.62 eV, wh…
The individual encapsulation of living cells has a great impact on the area of cell-based sensors and devices as well as fundamental studies in cell biology. In this work, living yeast cells were individually encapsulated with functionalizable, artificial polydopamine shells, inspired by an adhesive protein in mussels…
Resistance measurements indicate the presence of magnetoresistance in the La(0.5)Sr(0.5)MnO(2.5) brownmillerite related compound. An 80 % of magnetoresistance is found at 75 K. In spite of the partial break-up occurring at the 3D network of octahedra sharing corners, characteristic of the full oxygen content perovskit…
Abstract Der schiefe Stoßvorgang von dominant elastischen γ‐Al 2 O 3 ‐, elastisch‐plastischen Zeolith 4A‐ und dominant plastischen Natriumbenzoatgranulaten wurde mit einer Fallapparatur experimentell ermittelt. Die normale und tangentiale Stoßzahl bei verschiedenen Aufprallwinkeln wurde bestimmt und mit Ergebnissen au…
We investigate the thermoelectric properties of electrons at the interface of an oxide heterostructure and in the presence of a multiferroic oxide with spiral spin order. We find that there is no (spin) Hall current generated by the temperature gradient. A Seebeck effect is, however, present. Due to the magnetoelectri…
We introduce a Lüneburg lens design where Kerr nonlinearity is used to compensate for the focal point shift caused by diffraction of a Gaussian source. A computationally efficient iterative method introduced in [Opt. Lett. 35, 4148 (2010)] is used to provide ray diagrams in the nonlinear case and verify the focal shif…
Coronary disease risk increases inversely with high-density lipoprotein (HDL) level. The measurement of the biodistribution and clearance of HDL in vivo, however, has posed a technical challenge. This study presents an approach to the development of a lipoprotein MRI agent by linking gadolinium methanethiosulfonate (G…
The detection of illegally transported explosives materials has become important for assuring safety at airports and air travel. Trinitrotoluene (TNT) is also one of the most commonly used nitroaromatic explosives for landmines of military and terrorist activities. As a result, there is an urgent need for rapid and re…
For designers of high temperature superconducting equipment with liquid nitrogen as a dielectric, an expedient universal curve is sought that provides breakdown strength for a specified class of electrode shapes, with any practical sizes of electrodes and gap; thus the universal curve fills in missing experimental dat…
We present a computational and theoretical study of dendrimer-based nanoparticles composed of two linear chain types attached to the terminal groups of a core dendrimer. The chains were coupled to the dendritic core in both topologically Janus and alternating configurations. We find that a straightforward extension of…
We present the results of numerical simulation of three-dimensional unsteady turbulent melt convection duringCzo chralski (CZ) silicon crystal growth. A model combining the large-eddy simulation and Reynolds-averaged approaches has been developed to predict the contribution of unresolved turbulent motion. The model is…
Abstract Polylactide‐ block ‐poly(butylene adipate) poly(ester‐urethane) (PLAEU) thermoplastic elastomer was obtained by melt chain extending reaction with polylactide‐ block ‐poly(butylene adipate)‐ block ‐polylactide (PBLA) and hexamethylene diisocyanate (HDI). PBLA was previously prepared with L ‐lactide and poly(b…
In this paper, we study transport properties of electrons on the two-dimensional honeycomb lattice. We consider a half-filled system in the vicinity of a symmetry-breaking transition from a semimetallic phase toward an insulating phase with either charge-density- or spin-density-wave order. The effect of either order…
Valence electronic states of a clean Si(111)-7\ifmmode\times\else\texttimes\fi{}7 surface are investigated in a surface-site-selective way using high-resolution coincidence measurements of Si $p$$\mathit{VV}$ Auger electrons and Si 2$p$ photoelectrons. The Si ${L}_{23}$$\mathit{VV}$ Auger electron spectra measured in…
One electron paramagnetic parent osazone complex of rhodium of type trans-Rh(L(NHPh)H(2))(PPh(3))(2)Cl(2) (1), defined as an osazone anion radical complex of rhodium(III), trans-Rh(III)(L(NHPh)H(2)(•-))(PPh(3))(2)Cl(2), 1((t-RhL•)), with a minor contribution (∼2%) of rhodium(II) electromer, trans-Rh(II)(L(NHPh)H(2))(P…
Magnetism in graphene nanofragments arises from the spin polarization of the edge-states; consequently, as the material inexorably shrinks, magnetism will become a dominant feature whereas the bulk carrier mobility will be less relevant. We have carried out an ab initio study of the role of graphene-ultra-nanofragment…
The state of collagen molecules in the fibres of tail tendon, skin and demineralized bone has been investigated in situ using differential scanning calorimetry (DSC). Hydroxyproline analysis and tissue digestion with bacterial collagenase and trypsin were used to confirm that the common cause of all the DSC endotherms…
A modified Wang-Landau density-of-states sampling approach has been performed to calculate the excess entropy of liquid metals, Lennard-Jones (LJ) system and liquid Si under NVT conditions; and it is then the residual multiparticle entropy (S(RMPE)) is obtained by subtraction of the pair correlation entropy. The tempe…
Dielectric spectroscopy as a function of temperature and pressure was used to study the secondary relaxation in poly [(phenyl glycidyl ether)-co-formaldehyde] at hydrostatic pressure up to 600 MPa and at different temperatures between 315 and 243 K. From the analysis of the isothermal measurements, we observe that the…
Using the effective mass approximation, we investigate the photoabsorption and photoelectric process in the conduction band of a single electron charged spherical Si semiconductor quantum dot nanostructure embedded in the amorphous SiO2 matrix. We consider the potential barrier at the interface as of (i) infinite and…