16 research outputs found

    Clinical analysis of blood traces of rats after subcutaneous implantation of Nd-Fe-B magnets with protective PVD ZrN coatings

    Get PDF
    It is possible to increase the effectiveness of treatment of various anomalies of occlusion with the help of orthodontic appliances, including permanent magnets as components. But a significant disadvantage of magnetic materials is low corrosion resistance, which can be prevented by applying to the magnets various PVD protective coatings leading to passivation of the surface of the magnetic material. The effect of Nd-Fe-B magnets with and without protective ZrN coating after subcutaneous implantation in rats on the results of laboratory blood tests has been evaluated.Ефективність лікування різних аномалій прикусу можна підвищити за допомогою ортодонтичних апаратів, на основі постійних магнітів. Але суттєвим недоліком магнітних матеріалів є їх низька корозійна стійкість, яку можна запобігти нанесенням на магніти різних захисних покриттів PVD, що ведуть до пасивації поверхні магнітного матеріалу. Оцінено вплив магнітів Nd-Fe-B із захисним покриттям ZrN та без нього після підшкірної імплантації щурам на результати лабораторних аналізів крові.Эффективность лечения различных аномалий прикуса можно повысить с помощью ортодонтических аппаратов на основе постоянных магнитов. Существенным недостатком магнитных материалов является их низкая коррозионная стойкость, которую можно улучшить путем нанесения на магниты различных защитных покрытий PVD, приводящих к пассивации поверхности магнитного материала. Оценено влияние магнитов Nd-Fe-B с защитным покрытием ZrN и без него после подкожной имплантации крысам на результаты лабораторного анализа крови

    The HITRAN2020 Molecular Spectroscopic Database

    Get PDF
    The HITRAN database is a compilation of molecular spectroscopic parameters. It was established in the early 1970s and is used by various computer codes to predict and simulate the transmission and emission of light in gaseous media (with an emphasis on terrestrial and planetary atmospheres). The HITRAN compilation is composed of five major components: the line-by-line spectroscopic parameters required for high-resolution radiative-transfer codes, experimental infrared absorption cross-sections (for molecules where it is not yet feasible for representation in a line-by-line form), collision-induced absorption data, aerosol indices of refraction, and general tables (including partition sums) that apply globally to the data. This paper describes the contents of the 2020 quadrennial edition of HITRAN. The HITRAN2020 edition takes advantage of recent experimental and theoretical data that were meticulously validated, in particular, against laboratory and atmospheric spectra. The new edition replaces the previous HITRAN edition of 2016 (including its updates during the intervening years). All five components of HITRAN have undergone major updates. In particular, the extent of the updates in the HITRAN2020 edition range from updating a few lines of specific molecules to complete replacements of the lists, and also the introduction of additional isotopologues and new (to HITRAN) molecules: SO, CH3F, GeH4, CS2, CH3I and NF3. Many new vibrational bands were added, extending the spectral coverage and completeness of the line lists. Also, the accuracy of the parameters for major atmospheric absorbers has been increased substantially, often featuring sub-percent uncertainties. Broadening parameters associated with the ambient pressure of water vapor were introduced to HITRAN for the first time and are now available for several molecules. The HITRAN2020 edition continues to take advantage of the relational structure and efficient interface available at www.hitran.org and the HITRAN Application Programming Interface (HAPI). The functionality of both tools has been extended for the new edition

    Personality ecological consciousness: Values ethical vector of nature safety sustainable development

    No full text
    The relevance of the study is due to the current trends of the global environmental crisis. The ability of nature to self-purification in a man-made civilization is almost exhausted, and advances in science, technology, culture can no longer fundamentally affect the overcoming of the entrenched crisis. In the current difficult conditions, the importance of understanding that the solving the global environmental problem of human survival must be based on ethical values of equal interaction of nature, man and society. As one of the effective conditions to overcome the negative impact of human activity, the values’ ethical vector of nature safety sustainable development is substantiated. In this regard, on the basis of the study results the typology of the structure and content of environmental consciousness is identified and experimentally proved, determined by the ethical values of environmental safety sustainable development; the model of ethical values of environmental safety sustainable development is justified, acting as a priority for the transformation of environmental consciousness. The materials of the article have practical application and can be useful for the development and implementation of methods for environmental consciousness of different categories of the population formation, as well as in making management decisions that regulate environmental activities. © Foundation Environmental Protection & Research-FEPR
    corecore