Loiko ; Alexander V. Konkolovich; Alexander A.
Due to their relatively easy preparation and processing, the PDLC devices found many applications such as displays, architectural windows, energy control devices, projection ovarian cancer urine test, spatial light modulators, polarizers. Carbon nanotubes CNT have excellent mobility and are suitable as doping nanoparticles in order to improve the electrically- controlled orientation of LC.
Experimental results are presented for the films obtained by solvent induced polymerization method, using polymethyl methacrylate and a nematic LC, E7. The obtained films are characterized by polarized optical microscopy, differential scanning calorimetry and electro-optical transmission.
Author s : Ovarian cancer urine test.
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Zenkova ; D. Ivanskyi ; V. Tkachuk Show Abstract The paper presents main theoretical approaches allowing for calculation a set of optical forces and momentum in a birefringent plate. The obtained results will be of vital importance in numerous areas where one operates with minute quantities of matter such as nanophysics, nanophotonics, precise chemistry and pharmacology etc.
Author s : Emil M. Oanta ; Razvan Tamas; Mirel Paun Show Abstract The paper is an exploratory research regarding the identification of some of the basic ideas used to conceive solutions of general-defined problems. In this way, there is firstly presented the set of ideas used to choose the ovarian cancer urine test of model to be developed. The general problem solver and the related problems are also presented in the paper.
In this case there is used a greedy approach which may lead to large run ovarian cancer urine test values of the according software. To significantly decrease ovarian cancer urine test computer time used to solve such a problem, there is also presented a method used to minimize the search space of the candidate solutions, in this case being used an intelligent solver, that is more effective than the greedy method.
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Two examples of models based on the previously presented general directions are also given. The first example presents an algorithm used to solve an equilibrium problem in ship strength problems.
The second example is in electronic engineering. The ideas presented in the paper are important to identify the concepts employed to design modeling strategies and also for the development of the original software instruments structured as reusable libraries. Cr2O3 single crystal was selected as a sample, because it is a well-known antiferromagnetic material involved in a phase transition at a Neel temperature around 34°C.
In the paper, the photothermoelectric PTE method, in back detection configuration was applied in order to obtain the critical behaviour of the static volume specific heat and dynamic thermal diffusivity, ovarian cancer urine test and effusivity of Cr2O3.
Due to the fact that, usually, the Seebeck coefficient of the LTE materials is larger than that of solid TEs, a comparison with the same type of investigation, based on a solid thermoelectric sensor was performed. A second comparison with the results obtained by using the classical photopyroelectric PPE method indicates that the PPE method is still more accurate for such type of investigations.
Author s : Nicolae A. Mihailescu Show Abstract The increasing of popularity of implant treatments and the increasing number performed methods in recent time opens the new possibilities to use together the decontamination and adhesion of implant surface to the organic tissue. These studies are stimulated by a lot of incidence of short-term and long-term complications which took place in the last time.
It is proposed a set of modern effects in the bimolecular interaction of radiation with the human organism in order to apply it in bioinformatics and modern medicine. Taking into consideration the advance equipment in photonics like photonic crystals and photonic-crystal fibre we are interested to use this optical systems in modern ovarian cancer urine test in order ovarian cancer urine test treat the surface infection formed on the surface between the implant and cellular tissue in the process of poor adhesion.
Considering ovarian cancer urine test advanced equipments of modern photonics such as photonic crystals or photonic crystal fibers, we propose to use these optical systems in the controlling and managing of modern therapeutic implants. Such metamaterials like photonic crystals, each can be deposited on the implant surface and can be used as a dispersion of UV radiation on the large surface to treat infection on the surface between the implant and adhesion tissue.
The adherence of implant to the human tissue may be accompanied to the growth of cells between the elements of bubble structure of implant surface. Here we have a possibility to restore periphery neuronal system in order to feel and to control the surface of the implant by the brain through our neuronal network. Author s : A. Farcas ; A. Resmerita ; F.
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Farcas; A. Rotaru; M. Balan-Porcarasu; M.
Asandulesa Show Abstract We report the effect of the macrocyclic encapsulation on the photophysical properties of poly 9,9-dioctylfluorene-alt-bithiophene polyrotaxanes copolymers. These supramolecular compounds exhibited distinct improvement in the solubility, molecular weight, film forming ability, surface-morphological characteristics and reduced aggregation tendency compared to those of the neat compound.
Also, ovarian cancer urine test threading of conjugated backbones into macrocycles leads to an increasing environmental stability and resistance to quenching from impurities. Fluorescence emission PL shows vibronic transitions and a mono-exponential kinetics.
The electrochemical data provided that the investigated compounds exhibited n- and p-doping processes. Based on AFM analysis, polyrotaxane compounds exhibits a higher tendency to organize into fibers or linear ribbons.
Author s : Aurelian A. Puscas Show Abstract The amorphous films show many physical properties which differ from the crystalline state. One of these is the optical transparency photoinduced by light with photon energies higher than optical bandgap.
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The phenomenon is especially large in amorphous chalcogenide films. However, the changes of optical constants are too small for optoelectronic applications. In this paper we consider structure were the amorphous As2S3 film is placed in a structure which forms a surface plasmon resonance structure. The reflected light is coupled with waveguide modes. The experimental studies show that high nonlinear changes may be achieved for the light intensity ovarian cancer urine test 12 mW when the incident angle is close to resonance.
For some film thicknesses the SPR resonance was achieved with prism made from BK7 glass, which is important opportunity for applications.
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Author s : M. Popescu; F.
Nastase; I. Mihalache; M. Banu; V.
Tucureanu ; C. Ungureanu; B. Tincu ; R. Tomescu Show Abstract In this paper we aim to develop a summer garment with improved ultraviolet UV protection. Due to its lightweight and breathability, cellulose-based viscose rayon was selected to be covered with inorganic ZnO film.
Atomic layer deposition Ovarian cancer urine test is a modern technique that delivers uniform coatings with controlled thickness. Viscose fragments were evenly covered with ZnO at °C in high vacuum, and their properties were tested against UV exposure and wettability. Morphological examination conducted by scanning electron microscopy SEM and energy dispersive X-ray EDX elemental analysis demonstrated the uniform deposition of ZnO onto the porous semi-synthetic material.
High wettability of viscose was restrained by the ZnO superficial layer, as revealed by contact angle measurements.
Optical absorbance and transmittance evaluated by diffuse reflectance spectroscopy DRS displayed the increase of the absorption peak below the nm wavelength in dry and wet conditions, after the ZnO functionalization.
The co-precipitation method was used for the synthesis of YAG:Ce yellow phosphor.
The transition from the amorphous state ovarian cancer urine test the crystalline was observed at a temperature of °C. In order to obtain a better dispersion of the nanoparticles in the polymeric matrix has been chosen a capping agent.
The structural analysis of the nanocomposite and the phosphor were studied by Fourier transform infrared spectroscopy and x-ray diffraction, morphological properties were investigated by scanning electron microscope, and photoluminescence spectrometry has highlighted the applicability of phosphors and, implicitly, of the nanocomposite for application in emitting optoelectronics.
Author s : Alina Matei; Vasilica Tucureanu ; Marian Popescu; Cosmin Romanitan; Iuliana Mihalache; Bianca Ţîncu ; Marioara Avram Show Abstract The present paper focuses on the obtaining of ZnO in powder form with a limited distribution of the nanoparticle size using different types of surface-active agents and optimizing the synthesis conditions.
The coprecipitation process was chosen for the ZnO powder synthesis in the absence and in the presence squamous papilloma ear canal pathology surface-active agents, being considered one of ovarian cancer urine test most common synthesis and papilloma nel naso methods for ovarian cancer urine test nanostructured materials.
The use of agents consists in preventing the nanoparticle size growth, but also in stabilizing the aggregation trend effectively by controlling structural features and by reducing the oxygen bridge bonds between particles. The anionic surfactant SDS sodium dodecyl sulfate and the cationic surfactant CTAB cetyltrimethylammonium bromide were used to modify ovarian cancer urine test size, morphology and surface properties of the precipitated nanoparticles.
The development of this type of material encourages the uses in many applications in nanotechnology, electronics, optics and other areas of modern science and technology.