Materials Literature
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During the last decades magnetic circular dichroism (MCD) has attracted much interest and evolved into various experimental methods for the investigation of magnetic thin films. For example, synchrotron-based X-ray magnetic circular dichroism (XMCD) displays the absolute values of spin and orbital magnetic moments. It…
Neutron diffraction is nowadays a well established non destructive technique with proven high efficiency in solving complex structural problems in condensed matter. The technique exploits the unique properties of the neutron that make it an especially versatile probe in crystallographic research. Neutrons penetrate th…
In this study, the design of a novel in situ test fuel cell (FC) to enable investigation of thermal and water management with commercially equivalent hardware is presented. Visualization of a multi-instrumented proton exchange membrane fuel cell (PEMFC) provides a deeper understanding of water management and transport…
effect in bismuth ferrite BiFeo 3 single crystals, using photoelectric atomic force microscopy and piezoresponse force microscopy. We show that using a nanoscale top electrode, the photoexcited carriers are efficiently collected and the external quantum efficiency is enhanced by up to seven orders of magnitude. This e…
It is demonstrated, that the fluoride can be separated from LIQUID WASTES using pyrohydrolysis method. The routine method for separation of halides from ceramic samples was modified for radioactive liquid wastes. Subsequently, after separation by pyrohydrolysis, fluoride was determined from the pyrohydrolysis distilla…
Structural biology is one of the most important areas in biological sciences since detailed 3-D atomic protein structure not only gives direct information on protein function, but also provides useful knowledge on protein engineering and drug design. X-ray crystallography is one of the most powerful tools for high-res…
Influence of the vanadium concentrations, CV, on the structural, optical and electrical properties of V doped ZnO thin films deposited by R.F. magnetron sputtering is studied. The CV in the films (0.41-2.46 at.%) is determined by EDAX analysis. XRD spectra show a preferential c-axis orientation along the (002) plane a…
Eckert & Ziegler Isotope Products has produced reference/calibration, medical, and industrial radioactive sources since 1967. Curie levels of radioactive materials, including Ba-133, Cd-109, Co-57, Cs-137, Gd-153, and Ge-68, are handled daily in the laboratories. During the chemical processing of radionuclides, strong…
The nanotechnology is one of the most promising sectors of the scientific and technology evolution of the XXI century. In the development materials engineering, the study of the process and preparation of polymeric nanocomposites emerge fast like multidisciplinary research activity which results can prolong the polyme…
The paper presents experimental results which demonstrate that both elasticity and fracture strength decrease during useful life. Experiments allow the determination of the qualitative characteristics of phenomena such as lowering elasticity and strength caused by intrinsic interference between the strength of metals…
Background: Advances in nanotechnology have identified promising candidates for many biological and biomedical applications. Since the properties of nanoparticles (NPs) differ from that of their bulk materials, they are being increasingly exploited for medical uses and other industrial applications. The histological a…
A nonlinear microwave phase shifter based on ferrite-ferroelectric composite material has been studied for the first time. The ferrite-ferroelectric composite is fabricated in the form of bilayer consisted of yttrium iron garnet and barium strontium titanate. A principle of operation of the device is based on the line…
Crystal morphology influences the end-use efficacy of solid products as well as the downstream performance of the entire manufacturing and formulation process. The desired crystal size and shape distributions are governed mainly by the final application, hence a general methodology for the prediction and improvement o…
Wit is numerically investigated by using a macrospin approach the magnetization dynamics of a synthetic antiferromagnet (SAF) as a function of an injected spin polarized current and an applied magnetic field. The current is spin-polarized perpendicularly to the SAF layer and its effect is experienced only by the top-l…
New opportunities to improve hair conditioning are emerging due to the increased frequency of hair damage resulting from various grooming techniques, demographic changes in age and ethnicity and affluence in both developed and emerging markets. Silicones are commonly used in conditioning shampoos to improve wet and dr…
Instrumentation To overcome current difficulty of absolute period control in the EUV multilayer fabrication by sputtering, we have developed an automatic null ellipsometer as a sputtering rate monitor having high enough picometer thickness sensitivity enabling accurate monitoring of the nm period multilayer fabricatio…
The diatoms Synedra, Gomphonema (both epiphytic on Pithophora oedogonia filaments cells) and Fragilaria species (planktonic) occurring in the same pond exhibited similar population density change as the pond’s diurnal water temperature (PDWT) change, monthwise, throughout the year. They all had the highest natural pop…
Antimony sulphide (Sb2S3) thin films were grown on glass substrates from baths containing antimony trichloride (SbCl3) and sodium thisulphate (Na2S2O3) dissolved in acetone (CH3CO). Some of the film samples deposited at both room temperature and 55 C in an oven were annealed at different temperatures of 100, 200 and 4…
Resumo As aplicacoes terapeuticas do Ultra-som no campo da Fisioterapia produzem uma gama de efeitos biologicos que dependem exclusivamente dos parâmetros utilizados no aparelho de Ultra-som. Quando utilizamos o Ultrasom na forma mecânica podemos observar efeitos celulares presentes sem a transmissao de calor, com a u…
Using mercaptoethylamine as a stabilizing agent, CdTe/CdS core/shell structure quantum dots (QDs) were prepared by a one-pot synthesis based on a simple high pressure autoclave. In addition, a new compound QDs-Cy3 was synthesized by chemical bonding between QDs and Cy3, which bond each other in a complex embrace invol…