Materials Literature
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Summary Various foaming routes were used in order to produce poly(methyl methacrylate) porous structures. The focus was, primarily, on the temperature‐induced phase separation method and the effect of foaming temperature was, first, investigated. It was observed that the pore size decreases with increase of foaming te…
A series of alternating block polyurethanes (abbreviated as PULA-alt-PEG) and random block polyurethanes (abbreviated as PULA-ran-PEG) based on poly(L-lactic acid) (PLA) and poly(ethylene glycol) (PEG) were synthesized. The differences of PULA-alt/ran-PEG chemical structure, molecular weight, distribution, thermal pro…
The microstructure evolutions and mechanical properties of AZ31 magnesium alloy sheets processed by the conventional extrusion and the trapezoid extrusion (TE) were investigated. The textural evolutions of TE sheets at near surface are different throughout the sheet thickness direction due to an additional shear defor…
The brightness of a focused electron beam generated by a gun with a plasma emitter is measured. Measurements are carried out for a beam with a power up to 4 kW and an electron energy of 60 keV focused at a distance of 0.52 m from the focusing lens. For the first time, it is shown that the brightness of the focused bea…
Nitric oxide plays important roles in cardiovascular homeostasis, immune responses and wound repair. Therefore, polymers that release nitric oxide locally at the surface exhibit improved biocompatibility for biomedical implants through reducing neointimal hyperplasia and thrombosis caused by blood vessel wall damage.…
A technique based on suspended islands is described to measure the in-plane thermal conductivity of thin films and nano-structured materials, and is also employed for measurements of several samples with a single measurement platform. Using systematic steps for measurements, the characterization of the thermal resista…
Scanning transmission electron microscopy in high angle annular dark field mode has been used to undertake a characterisation study with sub-nanometric spatial resolution of the barrier formation process for a Cu(Mn) alloy (90%/10%) deposited on SiO2. Electron energy loss spectroscopy (EELS) measurements provide clear…
The accurate analytical calculation of iron losses in electrical machines is still a great challenge for designers of electrical machines. There are a lot of different analytical approaches applying in order to reach good results. Comparisons between the analytical approaches and measurements of the specific iron loss…
Based on their versatile, biocompatible properties, superparamagnetic iron oxide (SPIO) or ultrasmall superparamagnetic iron oxide (USPIO) nanoparticles are utilized for detecting and tracing cells or tumors in vivo. Here, we developed an innoxious and concise synthesis approach for a novel B-cell lymphoma (Bcl)-2 mon…
The nature of the melting transition of a bilayer comprising Hertzian spheres, confined between parallel walls, was investigated with the multicolour domain decomposition Monte Carlo simulation. It was confirmed that an ordered bilayer structure with a square lattice symmetry appeared parallel to the walls of confinem…
A cavity-resonator-integrated guided-mode resonance filter (CRIGF) has been proposed and investigated for providing a high-efficiency narrowband reflection with a small aperture. The CRIGF consists of a grating coupler (GC) and a pair of distributed Bragg reflectors (DBRs) constructing a waveguide cavity resonator. Th…
To improve the accuracy of the static contact angle measurement for the corona aged silicone rubber, a static contact angle algorithm based on the least-squares circle fitting is presented, and the least-squares model, the optimization algorithm, the determination of initial values and the convergence criterion are in…
Uranium-molybdenum fuel particle dispersion in aluminum is a form of fuel under development for conversion of high-power research and test reactors from highly enriched to low-enriched uranium in the U.S. Global Threat Reduction Initiative program (also known as the Reduced Enrichment for Research and Test Reactors pr…
We obtain the asymptotics of the optimal global Hölder exponent of the integrated density of states of the Fibonacci Hamiltonian for large and small couplings. © 2013 Springer-Verlag Berlin Heidelberg.
This paper presents and analyzes a non-dissipative balancing system for supercapacitors. The circuit design is carried out by means of a controlled buck-boost converter in order to have the same voltage in each supercapacitor. The paper presents an energy loss analysis in two cases: a dissipative and a non-dissipative…
Abstract Micro‐arc oxidation (MAO) process was carried out in an optimized dual electrolyte system to fabricate a compact, smooth, and corrosion resistant coating on ZK60 Mg alloy. The microstructural characteristics of coating were investigated by scanning electron microscopy (SEM) coupled with an energy dispersive s…
The aggregation kinetics of silver nanoparticles in sessile droplets were investigated both experimentally and through numerical simulations as a function of temperature gradient and evaporation rate, in order to determine the hydrodynamic and aggregation parameters that lead to optimal surface-enhanced Raman spectros…
Textured silicon (Si) substrates decorated with regular microscale square pillar arrays of nearly the same side length, height, but different intervals are fabricated by inductively coupled plasma, and then silanized by self-assembly octadecyl-trichlorosilane (OTS) film. The systematic water contact angle (CA) measure…
Graphene is the thinnest 2-D material which can be regarded as a single layer of graphite. The unique electrical, mechanical and optical properties of graphene can be used in many technological applications. 2-D nanomaterials with semiconducting properties are of great interest since they can be applied in electronics…
Two new layered hybrid organic-inorganic compounds [Zn(pyim)]2V4O12 () (pyim = 2-(2-pyridyl)imidazole) and [Cu(bim)2]2V4O12(H2O)·CH3CH2OH () (bim = bis(1-imidazolyl)methane) based on polyoxovanadates (POVs) and organic ligands decorated transition metal units have been synthesized by hydrothermal and solvothermal meth…