Materials Literature
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By utilizing the vector nature of light as well as the inherent anisotropy of artificial meta-atoms, we investigate parity time symmetry breaking in polarization space using a metasurface with anisotropic absorption, whose building blocks consist of two orthogonally orientated meta-atoms with the same resonant frequen…
Global production and consumption of poly(ethylene terephthalate) (PET) products has increased dramatically over the past few decades. World consumption of PET has exceeded 13 million tonnes, of which about 1.5 million tonnes is exclusively consumed by the packaging sector itself. However, this tremendous increase in…
The back gate multilayer InSe FETs exhibit ultrahigh carrier mobilities, surpassing all the reported layer semiconductor based electronics with the same device configuration, which is achieved by the suppression of the carrier scattering from interfacial coulomb impurities or surface polar phonons at the interface of…
Comunicacion presentada en el Vth International Workshop on Layered Materials (IWLM2014), 27-29 August 2014, Mulhouse France
A single-dosimeter worn on the anterior surface of the body of a worker was found to significantly underestimate the effective dose to the worker when the radiation comes from the back. Several researchers suggested that this sort of underestimation can be corrected to a certain extent by using an extra dosimeter on t…
Inventory changes of the liquid and gaseous radwastes were analyzed by linear regression analysis on the basis of the operation histories ofYonggwang nuclear power plants (YGN) 3 & 4, and the future inventories were also predicted. Based on the evaluation results of the inventories, the annual doses for the resident w…
In order to estimate the accuracy of calculation methods such as empirical formulae and Monte Carlo codes for neutron fluxes, neutron dose distributions, and gamma-ray dose distributions in a room with a Cu target irradiated by 67-MeV-proton and a connected labyrinth, experimental analyses were carried out. As the res…
Kehoeite and vis6ite reviewed; comments on dahllite and francolite 'In addition to these synthetic materials, the minerals kehoeite (McConnell and Foreman, 1974) and vis6ite (McConnell, 1952) have been alleged to be, respectively, aluminophosphate and aluminosilicophosphate isotypes of analcime. However, the former is…
THE ammonium ion is a natural constituent of many rocks at levels in the order of 1-1000 parts per million. In sedimentary rocks, ammonium can be incorporated into minerals either as a fixed constituent substituting isomorphously for potassium in the structures of potassium minerals, such as micas or feldspars, or occ…
Elemental analyses of C, H, N were performed by a Carlo Erba 1106 instrument. IR spectra were recorded as KBr pellets on a Nicolet 750 FTIR spectrometer in the 400–4000 cm �1 region. The thermogravimetric analysis was made by an LT-1 model thermobalance under a N 2 atmosphere. Crystallography Pink (compound 1), green…
Liquid crystals (LCs) have historically attracted scientific and technological interest due to their unique optical properties. Biologists were puzzled by a birefringent fluid well before 1888, the date commonly cited as the year liquid crystals were discovered. In that year, Austrian botanist
The cellular uptake of transition metal complexes is only beginning to be explored, despite their potential utilization for biological applications. Here, we have demonstrated that luminescent dipyridophenazine (dppz) complexes of ruthenium(II) are well suited for studies of internalization and distribution in living…
Los biopolímeros constituyen en la actualidad una de las alternativas más atractivas para obtener materiales que satisfagan los requerimientos de un amplio campo de aplicaciones. Los poliuretanos basados en recursos naturales en lugar de polímeros que se derivan del petróleo podrían contribuir en mejorar la calidad am…
A manipulação dos potenciais que agem sobre o elétron em superfícies semicondutoras a partir da criação de heteroestruturas que geram sistemas de massa variável, tem sido de fundamental importância para o desenvolvimento de nanodispositivos eletrônicos. Tais sistemas podem ser obtidos através da dopagem de materiais o…
Neste trabalho foi estudada a síntese de nanopartículas de magnetita (Fe3O4) a partir de duas diferentes rotas com diferentes precursores e realizada sua avaliação microestrutural. A caracterização destas amostras de magnetita foi realizada com o objetivo de comparar suas características superficiais e verificar a inf…
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Use of medium and large radiation sources are increasing, and so does the risk of radiation exposure to the workers and the general public, in both normal and accident conditions. In this study, radiological risks associated with the high dose rate remote afterloading brachytherapy equipment were assessed. Based on th…
Nanometer scale structures embedding molecular compounds represent a versatile test-bed to investigate non-equilibrium quantum transport phenomena.We follow two experimental routes to characterize and control electronic transport in molecular junctions.Using mechanically controllable break junctions, we investigate th…
The present study investigated energies of alpha-particles emitted by the triple-alpha sources ( 239 Pu, 241 Am and 244 Cm) in a vacuum and measure the alpha particle properties at different pressures. The absolute activities for the radioisotopes in the triple alpha source ( 239 Pu, 241 Am and 244 Cm) were found to b…
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