ChemInform Abstract: Giant Electric‐Field‐Induced Strains in Lead‐Free Ceramics for Actuator Applications ‐ Status and Perspective
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Cleaning IV: Gels and Polymeric Dispersions
This chapter provides an overview of a complex and variegated class of material, namely gels. The objective of this chapter is to introduce the reader to a basic knowledge of gels and principally to the difference between physical and chemical gels. Structural and mechanical properties are introduced in order to provi…
Nanofilm Processors Controlled by Electrolyte Flows of Femtoliter Volume
Nanofilm processors are a new kind of smart system based on the lateral self-oxidation of nanoscale aluminum films. The time dependency of these devices is controlled by electrolyte flows of femtoliter volume which can be modulated by different mechanisms. In this paper, we provide a deeper investigation of the electr…
Bernoulli catenary and elasto-capillary effect in partially wet fibrous materials
When a wetting liquid wicks into a fibrous material, it causes the material to deform. In this paper we discuss the elasto-capillary effect that leads to spontaneous internal stresses in the materials. The elasto-capillary effect produced by menisci in pores can be identified through a specific stress distribution in…
webPDBinder: a server for the identification of ligand binding sites on protein structures
The webPDBinder (http://pdbinder.bio.uniroma2.it/PDBinder) is a web server for the identification of small ligand-binding sites in a protein structure. webPDBinder searches a protein structure against a library of known binding sites and a collection of control non-binding pockets. The number of similarities identifie…
High-Temperature Interlaminar Tension Test Method Development for Ceramic Matrix Composites
Ceramic Matrix Composite (CMC) materials are an attractive design option for various high-temperature structural applications. In particular, the use of CMC materials as a replacement for state-of-the-art nickel-based superalloys in hot gas path turbomachinery components offers the potential for significant increases…
Magnetic transitions and spin-glass reentrance in two-dimensional [MnII(TCNE)(NCMe)2]X (X = PF6,AsF6,SbF6) molecular magnets
The structural, spectroscopic and magnetic properties of the two-dimensional (2D) molecule-based magnets of [Mn(II)(TCNE)(NCMe)2]X (X = PF6, AsF6, SbF6; TCNE = tetracyanoethylene, NCMe = acetonitrile) composition are reported. It is shown that the alteration of the interlayer distance by increasing the anion size has…
Spontaneous B-site order and metallic ferrimagnetism in LaSrVMoO6 grown by pulsed laser deposition
We have investigated the structure and physical properties of single phase LaSrVMoO6 thin films grown by pulsed-laser deposition on (111) perovskite substrates. Despite the use of a mixed target, a high degree of ordering of V and Mo ions in the double perovskite structure has been observed using x-ray diffraction, re…
FACILE APPROACHES FOR CONSTRUCTING BLUE/DEEP-BLUE TPE-BASED SOLID EMITTERS
The intriguing phenomenon of aggregation-induced emission (AIE), first reported by Tang et al. in 2001, has been demonstrated as an effective way to tackle the notorious aggregation-caused quenching (ACQ) effect and aroused a new research topic of AIE materials as promising candidates for OLEDs and bioprobes. Among th…
Effect of pH on the Characteristics of Cu 2 ZnSnS 4 Nanoparticles
We have investigated the effect of pH on the structural and optical properties of chemical coprecipitated Cu 2 ZnSnS 4 (CZTS) nanoparticles. The CZTS nanoparticles have been successfully synthesized at different pH values ranging from 6 to 9, keeping all other deposition parameters as constant. X-ray diffraction and R…
Optimizing the precision of a multichannel three-polarizer spectroscopic ellipsometer
We developed a multichannel three-polarizer spectroscopic ellipsometer based on a data acquisition algorithm for achieving optimized precision. This algorithm measures unnormalized Fourier coefficients accurately and precisely. Offset angles for optical elements were obtained as wavelength-independent values using reg…
Temperature-dependent exciton-related transition energies mediated by carrier concentrations in unintentionally Al-doped ZnO films
The authors reported on a carrier-concentration mediation of exciton-related radiative transition energies in Al-doped ZnO films utilizing temperature-dependent (TD) photoluminescence and TD Hall-effect characterizations. The transition energies of free and donor bound excitons consistently change with the measured TD…
Synthesis and characterization of [FeFe]-hydrogenase mimics appended with a 2-phenylazopyridine ligand
Two new complexes in which 2-phenylazopyridine (pap) chelates iron in hydrogenase mimics, 1,2-(μ-benzenedithiolato)-2′-phenylazopyridinediirontetracarbonyl and 1,3-(μ-propanedithiolato)-2′-phenylazo- pyridinediirontetracarbonyl have been synthesized and fully characterized, including X-ray crystal structure determinat…
Structure-stress-resistivity relationship in WTi alloy ultra-thin and thin films prepared by magnetron sputtering
WTi thin films were prepared from an alloyed target (W:Ti ∼ 70:30 at. %) by magnetron sputtering. Body-centered cubic WxTi1−x solid solutions with a {110} fiber texture and columnar grains have been produced with 0.75
Synthesis and Nanoscale Investigation of the Electrical Properties of Quasi-2D Semiconductor Nb $_{\bf 2}$O$_{\bf 5}$ Nanosheets
Quasi-two-dimensional (Q2D) Nb2O5nanosheets with thickness of approximately 15-25 nm were fabricated by combined sol-gel/exfoliation method. Obtained Nb2O5nanosheets were chemically intercalated with H+in order to improve their electrical conductivity. Then, their morphology and electrical properties were investigated…
Phase field modeling of fracture in rubbery polymers
Similar to the elastic bulk response, the fracture toughness of rubbery polymers can be rooted in statistical micro-mechanics. The occurrence of macroscopic fracture of rubbery polymers is a result of the failure of the network at the molecular level. When a rubber-like material is deformed, the network constituents c…
Facile Synthesis of an Amphiphilic 1,3,5-Trisubstituted Benzene as a Novel Surface Modifier by Selective Photocyclic Aromatization and Efficient Improvement of Oxygen Permselectivity by the Addition of the Surface Modifier
Abstract An amphiphilic 1,3,5-trisubstituted benzene as a new 2D surface modifier (T-EO) which has six hydroxy groups and three oligoethylene groups was successfully and easily synthesized by selective photocyclic aromatization in high conversion and selectivity for the first time. We prepared four kinds of blend memb…
Damage Detection and Tensile Performance of Various SiC/SiC Composites Impacted With High Speed Projectile
Implementation of ceramic matrix composites (CMCs) in jet engine applications necessitates the understanding of high velocity impact behavior. To this end, various melt-infiltrated SiC/SiC composites were impacted at room temperature at ∼350 m/s with different support systems and tensile tested to failure. Non-Destruc…
A Rotaxane Turing Machine for Peptides
A ringing belt: An artificial molecular machine was invented to build up a programmable peptidic sequence. By molecular movements, the rotaxane-based machine progressively introduces amino acids to form a short peptide chain. The journey towards an artificial ribosome is still quite long, but a conceivable future can…
Two-Dimensional Stress-Wave Propagation in Finite-Length FG Cylinders with Two-Directional Nonlinear Grading Patterns Using the MLPG Method
The application of meshless local integral equations based on the meshless local Petrov-Galerkin (MLPG) method for the two-dimensional (2D) dynamic stress analysis of a 2D functionally graded (FG) cylinder with two-directional grading patterns is developed. It is assumed that the inner bounding surface of the cylinder…