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Publicatii proprii

The magnetic properties optimization in diluted magnetic oxide semiconductor nanoparticles obtained by a modified co-precipitation approach in intrazeolitic networks

Ferromagnetism in diluted magnetic semiconductors (DMS) has been a subject of great scientific and technological interest for the past few years due to its implications for spintronics, advanced magneto-optics and sensors applications. Our research involves a modified co-precipitation approach that allows controlled growth of Fe3O4/gamma-Fe2O3 nanocrystals within the superparamagnetic and single domains limits by creating the precipitating conditions

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Developing the Mental Image of Profession: a Basic Condition for Professional Development and Creativity

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Preparation in situ and characterization of zeolite enclosed nanoparticles

Fe3O4/γ-Fe2O3 modified single crystals zeolite LTA and natural clinoptilolite by treatment with urea/FeCl3 aqueous solutions under different experimental conditions were achieved. Our research involves a modified co-precipitation approach for the controlled growth of Fe3O4/γ-Fe2O3 nanocrystals within the superparamagnetic and single domains limits by creating the precipitating conditions with the help of the hydrolysis reaction of the urea. The

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Synthesis and characterization of FeO(OH)/Fe3O4 nanoparticles encapsulated in zeolite matrix

Nanoparticles and nanoclusters of FeO(OH)/Fe3O4 have been incorporated by co-precipitation in the clinoptilolite channels. In the present study, we demonstrate the coexistence of paramagnetic and superparamagnetic Fe(III) in clinoptilolite. The bound of trivalent iron in clinoptilolite results in the formation iron oxide nanoclusters in microvoids, and stabilize AlO4 tetrahedral in the aluminosilicate matrix. The resulting non-framework and bound

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Extended aromatic pi-electron conjugated dyes with three azo bonds and either

Azo dyes with either one or two identical or different azulen-1-yl moieties attached to the structure -N2-C6H4-N2-C6H4-N2- were prepared, the phenylene ring being either 1,3-10,30 or 1,4-10,40 disubstituted. The syntheses were accomplished in good yields via mono or bis diazotization of the corresponding anilines followed by the coupling with unsubstituted or alkyl substituted azulenes in acetic/acetate medium. The recorded electronic spectra of

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Nonparametric signal detectability evaluation using an exponential transformation of the FROC curve

Purpose: To develop an efficient nonparametric method for evaluation the detectability of signals at unknown locations in images, as a mean for image quality assessment. Methods: We use the free-response methodology that allows the image observer to mark and score all locations found as suspicious in an image, summarizing these results in a free-response operating characteristic (FROC) curve. However, unlike the relative (or receiver) operating characteristic

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Technological innovation in support of the global database-morhotypes

This paper presents the innovation in the internet services area. By using the management of research and development, it is possible to improve the ability of firms to absorb this idea. The 3d scanner technological innovation can be useful for making database with specific morfotypes for population of each country. These databases are used for identification stage of the buyer type. The database is in continuous development and can be updated anytime

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THE GARMENT MASS CUSTOMIZATION BY USING THE E-COMMERCE AREA

The paper presents the advantages of using a virtual e-shop for mass customization, marketing or garment product commercialization. The e-shop is presented as 3D room where the buyer enters, choice the clothing model, color and material and head to the fitting room where he has to upload the 3D body scanned file.

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DYNAMIC CLOTH SIMULATION BY USING THE PARAMETRIC MANNEQUIN

The paper presents the virtual garment simulation in virtual environment. The first step is to define the cloth properties and the environmental forces acting on the cloth. The collision objects on this simulation are the virtual human body and the textile surface. Simulation of dynamic behavior requires the knowledge of the textile surface forces acting on the cloth surface, the nature of collisions that take place, the rendering, the laws of dynamic

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THE RELATIONSHIP BETWEEN TENSION ON 3D CLOTH SURFACE SIMULATION AND THE MECHANICAL BEHAVIOR OF THE FABRIC

The paper presents a case study in terms of tension that occurs in 3D cloth surface simulation on the virtual mannequin. By using the KES testing device for fabric were obtained the mechanical fabric behavior to bending, shearing, stretching and compression. In order to simulate the textile surface has been defined on the computer the fabric by the parameters obtained on the Kawabata System. The tense over the body can be shows by different spectrum

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