Materials Literature
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The performance of magnetic bearing is determined the characteristics of magnetic materials, which is affected on the configuration of stator core stacks because of different stress under manufacturing process. The experimental results are shown that stator core stacks with reeling condition will lead to large current…
Highly dispersed barium titanate (BaTiO3, BT) nanoparticles were prepared by the new 2-step thermal decomposition method of barium titanyl oxalate of 30 nm in size. The nanoparticles were heated at 450 °C for 5 hours in air to yield intermediate product: Ba2Ti2O5CO3. Highly dispersed BaTiO3 nanoparticles were prepared…
A multidimensional analysis code for reactive shocks (MARS), which is developed to solve various problems in the physical hazard analysis of high energetic materials, has been applied to such complex problems as multi-material problem and sympathetic problem because it can employ various types of equations of state an…
An attempt has been made to explain the relation between the morphological characteristics of diamond crystals and the nitrogen concentration in them using a new method of analyzing spectra, which after the spectra decompose makes it possible to calculate nitrogen concentrations in the A-, B1-, C-, B2-defects in order…
This study investigates a plasmonic Roche lobe that is based on a metal-dielectric-metal (MDM) structure using finite-difference time-domain simulations and theoretical analyses. The effective refractive index of the MDM structure has two centers and is inversely proportional to the distance from the position of inter…
Summary form only given. Molecular structure determines molecular function and the geometry is one of the most fundamental aspects of the molecular structure regardless it is organic or inorganic. Despite of its importance, the theory for understanding the geometry of molecules has not been sufficiently developed. In…
APPLICATA 244 possibile riscontrare un contemporaneo aumento del numero di pazienti che progrediscono dalla malattia renale cronica verso l'insuffi cienza d'organo (3-5). La naturale progressione della CKD verso la malattia renale terminale comporta la necessit di una terapia sostitutiva, rappresentata attualmente da…
A novel functionally gradient composite was reported in this article. The composite material are composed of plain low carbon steel Fe360 as a substrate and glass-ceramics containing ZrO2 reinforcing particles as a coating. Based on a mathematical model of the residual stress, the geometric model and finite element an…
Electromagnetic properties of resonant metasurfaces are studied in transition from a periodic to an amorphous arrangement of their constituents. Emphasis is put to investigate the response at oblique incidence and for TM polarized light. Our metasurfaces possess both electric and magnetic resonances which makes them t…
The research concentrates on the preparation of the Nontoxic multi-color fluorescent substance. Fluorescent substance in biology exists two major shortcomings, one is that they are toxic and the other is that they are relatively monotonous, only emitting light of a single color. In response to this situation, we propo…
Co-Ni alloy nano array was formed in applied magnetic field via liquid phase reduction method using different surfactants as soft templates.At last, The microstructure and the size of Co-Ni alloy nano-powder were illustrated with FESEM, and the powder’s composition was analyzed by XRD. In this experiment,the reaction…
Anomalous device degradation behavior of p-type polycrystalline silicon thin film transistors under negative gate bias stress is observed. In the first stage, negative gate bias instability dominates, resulting in negative threshold voltage (Vth) shift while in the second stage, negative charge generation induced by h…
Metamaterial coatings have been previously studied for their ability to tailor the dispersive IR emissivity of a surface. Here, we investigate metamaterial structures based on an electromagnetic band-gap surface for use as near-IR emitters with custom angle and polarization selectivity. A genetic algorithm is successf…
Preparation of macrocyclic aryl ketone oligomers containing the phthaloyl moiety by Friedel-Crafts acylation reaction is described. Detailed structural characterization of these oligomers confirmed the cyclic nature by a combination of MALDI-TOF-MS and GPC analyses. The cyclic aryl ketone oligomers are amorphous and r…
Graphene sheet with high enhancement factor and low emission field were exfoliated from carbon fibers in carbon cloth. It was a new concept that kept the graphene sheets stay on the carbon fiber and were used, in situ, as emitters. Due to their high multistage enhancement factor and intrinsic low contact resistance, e…
Fibrous materials are finding widespread applications in diversified areas, starting from clothing sector to medical fields, various structural and infrastructural applications of civil engineering, aerospace industries and even for energy harvesting and storage applications. In this paper, the results of various researc…
The tensile curves of AISI 316L deformed at temperatures between 700 and 1000 °C in the strain rates range 10-5-10-2 s-1 are modelled with the Voce equation, starting from strain hardening analysis. The parameters, needed to draw the Voce equation, are the saturation stress σV, the critical strain εC and the stress σo…
A new method for the characterization and express diagnostics of highly porous, loose, and other weakly bound media in bulk is described. This method is based on nanomechanical testing of milligram material specimens. A possibility of identifying ensembles of nanotube-containing carbon nanomaterials that have differen…
Titanate nanotubes were synthesized by a hydrothermal route. The synthesized nanotubes were characterized by XRD, SEM and TEM measurements, which exhibit highly crystalline. After it was introduced into cigarette filter, tar and nicotine in mainstream cigarette smoke can be reduced efficiently.
FeSi steels with and without addition of Al are widely used as electrical steels. To improve the knowledge of the effects by the addition of Si and Al on the hardening and softening under hot rolling conditions, the behaviour of the flow curves in a wide range of temperatures and deformation velocities have been studi…