2,333 research outputs found

    Custom Surrogate Host for ActiveX In-Process Servers

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    This paper describes the design, implementation and evaluation of AX Host, a custom surrogate host for ActiveX in-process servers. AX Host aims to give ActiveX client applications improved stability by using software fault isolation

    STUDY OF THE INFLUENCE OF WINDS IN THE POTENTIAL CONTAMINATION WITH HAZARDOUS SUBSTANCES AS A RESULT OF MAN-MADE ACCIDENTS

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    The report presents enterprises on the territory of Bulgaria that store or use in their production dangerous chemical, radiation and biological substances. An analysis was made of the substances used and the conditions for use and storage. In the event of an accident, these hazardous substances will pollute the environment. Wind plays a major role in dispersal of released substances and will determine the contaminated area. The direction and strength of winds at different altitudes in the settlements where these enterprises are located were studied. The obtained results were analysed based on the prevailing winds in the last 20 years

    Remote Tool For Controlling User Interface Of Mobile Applications

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    It will be very useful for users to have an opportunity to control external visual appearance of their applications, especially the mobile one. This potentially functional feature provoked the authors beginning a research on development of mediator tools, which can help users for that. In this paper, will be presented a flexible tool, that controls remotely and dynamically visual appearance of cross platform mobile native shopping applications. Its architecture is multi-layered and later can be used like a base extension for other connecting tools. They can manage UI mobile applications from different types

    INFLUENCE OF METEOROLOGICAL ELEMENTS IN ACCIDENTS IN ENTERPRISES WITH RADIOACTIVE ELEMENTS OR DANGEROUS CHEMICAL SUBSTANCES IN BULGARIA

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    In the analysis of the meteorological elements that influence the spread of radioactive particles, radioactive isotopes and dangerous chemical substances on the territory of Bulgaria, the winds and air currents that form in the airspace over Bulgaria are considered. These are the main meteorological elements that most strongly influence the change in the radioactive background. Another element that has an impact is precipitation in its various manifestations - horizontal and vertical in appearance and depending on the aggregate state of the water. Due to their negligible influence on the radiation environment, we will exclude the remaining meteorological elements from the factors forming the natural indicators of the state of the atmosphere, water and soil. Their influence in areas where there are located large enterprises working with such substances is presented.The report examines the influence of the main factor - the movement of air masses at different altitudes in the atmosphere in the Ludogorie region and the Danube River as an area where NPPs are located in Bulgaria and Romania and which, in the event of an accident, would cause the greatest consequences. The winds in 3 cities from this region, which are located near these enterprises, are described and the corresponding analysis is made.

    Are blood cytokines reliable biomarkers of allergic disease diagnosis and treatment responses?

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    With the development of targeted therapies for allergic diseases, the need for biomarkers supporting disease diagnosis and management has increased. Recent research has elucidated the pattern of cytokines and their distinct roles in the pathogenesis of allergic diseases. This means that cytokines should be considered as biomarkers. In this review article, we summarize published findings and critically discuss the use of cytokine measurements in association with disease diagnosis and management. Among the variety of suggested cytokines, thymus and activation-regulated chemokine (TARC) stands out and can indeed serve as a biomarker of atopic dermatitis. Both biologic characteristics and technical issues determine the reliability and limit the use of blood cytokines as biomarkers

    Mathematical model of composite fibre-glass aramide-wired cord rheological properties

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    This paper describes the rheological properties of composite fibre-glass aramide-wired cords which, in its turn, are applied in large-sized structures for space systems. Based on experimental data a new mathematical model describing creeping and relaxation of composite cords is proposed. This model defines the operation time of the composite cords to be 15 years

    Influence of Protective Gas Content on Quality of Welded Joint While Welding With Impulse Supply of Electrode Wire

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    Currently one of the advanced ways of obtaining quality welded joint while welding of medium alloy martensitic-bainitic steel is the one with impulse supply of electrode wire in gas mixture Ar(70%±3%)+СО2(30%±3%). Results of experimental studies proved that application of protective gas Ar(70%±3%)+СО2(30%±3%) in comparison with СО2(100%) enables to increase strength properties of the welded joint by 10-15% and enlarge the transitioncoefficient of chemical elements

    Further investigations of the deep double donor magnesium in silicon

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    The deep double donor levels of substitutional chalcogen impurities in silicon have unique optical properties which may enable a spin/photonic quantum technology. The interstitial magnesium impurity (Mgi_i) in silicon is also a deep double donor but has not yet been studied in the same detail as have the chalcogens. In this study we look at the neutral and singly ionized Mgi_i absorption spectra in natural silicon and isotopically enriched 28-silicon in more detail. The 1s(A1_1) to 1s(T2_2) transitions, which are very strong for the chalcogens and are central to the proposed spin/photonic quantum technology, could not be detected. We observe the presence of another double donor (Mgi_{i*}) that may result from Mgi_i in a reduced symmetry configuration, most likely due to complexing with another impurity. The neutral species of Mgi_{i*} reveal unusual low lying ground state levels detected through temperature dependence studies. We also observe a shallow donor which we identify as a magnesium-boron pair

    A Mg-pair isoelectronic bound exciton identified by its isotopic fingerprint in 28^{28}Si

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    We use the greatly improved optical linewidths provided by highly enriched 28^{28}Si to study a photoluminescence line near 1017 meV previously observed in the luminescence spectrum of natural Si diffused with Mg, and suggested to result from the recombination of an isoelectronic bound exciton localized at a Mg-pair center. In 28^{28}Si this no-phonon line is found to be comprised of five components whose relative intensities closely match the relative abundances of Mg-pairs formed by random combinations of the three stable isotopes of Mg, thus confirming the Mg-pair hypothesis. We further present the results of temperature dependence studies of this center that reveal unusual and as yet unexplained behaviour.Comment: 5 pages, 4 figure
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