The Study of Anisotropy and Domain Condition of Permalloy Thin Films

Hysteretic Loops, 1,5; 3,0; 4,5; 6 and 10 nm in thickness, obtained by magnetron sputtering of Ni81Fe19 alloy, were measured by means of vibration magnetometer. It has been detected that by increasing the film thickness from 3 to 10 nm coercive force (HC) increases as well. In the direction perpendicular to the axis of easy magnetization the loop form considerably differs from the right-angled one, which is caused by amplitude dispersion of anisotropy. The films, derived in scattered magnetic field of the Earth, are by magnetic parameter isotropic. The results of atomic force microscope investigation indicate to the granular structure of films and confirms the presence of non-magnetized areas among the examined films. The critical thickness at which permalloy films pass from multi-domain to single-domain state was 10 nm. Estimation of the critical thickness of the transition from single-domain state to superparamagnetic led to the values of 1.5-2 nm. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3362

A local optimization technique for the solution of the problem of nonlinear seismic tomography

AbstractA new method for the solution of the inverse kinematic problem of seismics which is based on the local optimization approach is presented. The method has higher stability and performance in comparison to the known methods and can be well adapted to the real data

Диагностика глубокой перипротезной инфекции тазобедренного сустава

Periprosthetic infection (PJI) is one of the most frequent and devastating complications of total hip arthroplasty (THA). Early and accurate diagnosis of PJI allows timely initiation of treatment. Various diagnostic tools and algorithms for hip PJI diagnosis are described. The available serum (ESR, CRP, D-dimer, etc.) and synovial (alpha-defensin, leukocyte esterase, D-lactate) biomarkers are listed, as well as their combinations for the purpose of PJI verification. Combined serum and synovial tests can significantly improve the efficiency of PJI hip diagnosis.Перипротезная инфекция (ППИ) является одним из наиболее частых и разрушительных осложнений эндопротезирования тазобедренного сустава (ТБС). Ранняя и точная диагностика ППИ позволяет своевременно начать лечение. Описаны различные диагностические инструменты и алгоритмы диагностики ППИ ТБС. Перечислены имеющиеся сывороточные (СОЭ, СРБ, D-димер и др.) и синовиальные (альфа-дефенсин, лейкоцитарная эстераза, D-лактат) биомаркеры, а также их комбинации с целью верификации ППИ. Объединение сывороточных и синовиальных тестов позволяет значительно повысить эффективность диагностики ППИ ТБС

Профиль лопатки турбины из кривых Bezier

An article presents profiling turbine blades The computer program in Mathcad is an element of CAD design system turbine. Blade profile outlines three curves Bezier: (back profile — one parabola (Bezier curve of order 2); trough — two parabolas (Bezier curves of order 2). In the construction was given the maximum thickness of the profile.В работе рассмотрен вопрос профилирования лопатки турбины. Профиль лопаток очерчивается тремя кривыми Bezier: спинка профиля — одной параболой (кривой Bezier 2-го прядка, корытце — двумя параболами (кривыми Bezier 2-го порядка) с заданием максимальной толщины профиля

Ранние результаты одномыщелкового эндопротезирования медиального отдела коленного сустава

Background. Among the methods of surgical treatment of early stages medial knee osteoarthritis in the partial knee replacement (PKR) becomes more and more relevant. The relevance and increasing number of PKR are confirmed by data from various national registers.The aim of the study was to research the early functional results of PKR and to analyze the complications at various stages of the postoperative period.Material and Methods. Study design: a single-center prospective study. The results of 90 operations of PKR in the period from March 2018 to April 2020 are presented. Assessment of knee function and quality of life of patients was performed according to three scalesquestionnaires: KOOS, WOMAC, SF-36, which were filled in preoperatively and then at 3, 6, 9, 12, 18 months. after surgery. Patients within the reporting period provided X-rays and filled in the scales at the face-to-face examination and at remote contact.Results. The most significant improvement of quality of life and median values of the functional results observed after 3 months, and after 18 months. After replacement the best median functional outcome scales KOOS, WOMAC, SF-36 — 79,4 (73,6–84,3); 27,1 (24,8–30,6); 89,1 (85,3–92,6) compared with the functional results obtained before surgery 32,3 (22,8–38,4); 73,6 (63,6–78,8); 35,2 (31,3–42,1); p = 0,027; p = 0.023; p = 0,028, respectively. A negative correlation was obtained between BMI and functional outcome (p = 0.027, R = -0.7).Conclusion. PKR allowed us to achieve an improvement in the quality of life and functional results already in the early postoperative period (from 3 to 18 months after the operation). The improvement of the operating technique, the analysis of errors and the regularity of the performed PKR will improve the results of PKR and minimize the number of complications.Актуальность. Среди методов хирургического лечения ранних стадий медиального гонартроза все чаще используется одномыщелковое эндопротезирование коленного сустава (ОЭКС). Постоянно увеличивающееся число выполняемых ОЭКС медиального отдела подтверждается данными различных национальных регистров артропластики.Цель исследования — оценить ранние функциональные результаты одномыщелкового эндопротезирования медиального отдела коленного сустава и проанализировать осложнения на различных этапах послеоперационного периода.Материал и методы. Дизайн исследования: одноцентровое проспективное. Представлены результаты 90 операций ОЭКС медиального отдела в период с марта 2018 по апрель 2020 г. Оценку функции коленного сустава и качества жизни пациентов проводили с использованием шкал-опросников: KOOS, WOMAC, SF-36 до операции и через 3, 6, 9, 12, 18 мес. после ее выполнения. Оценку функционального состояния пациентов по KOOS и WOMAC высчитывали в процентах от максимально возможной суммы баллов по каждой из шкал.Результаты. Наиболее значимое улучшение качества жизни и функционального состояния зарегистрировано через 3 мес., а через 18 мес. после эндопротезирования получены наилучшие результаты: KOOS — 79,4% (73,6–84,3); WOMAC — 27,1% (24,8–30,6); SF-36 — 89,1 баллов (85,3–92,6) по сравнению состоянием до операции 32,3% (22,8–38,4) р = 0,027; 73,6% (63,6–78,8) р = 0,023; 35,2 баллов (31,3–42,1) р = 0,028 соответственно. Получена отрицательная корреляция между ИМТ и функциональным исходом (р = 0,027, R = -0,7). В послеоперационном периоде выявлены осложнения у 8 пациентов, из которых 3 пациентам выполнено ревизионное оперативное вмешательство, а 5 — проводилось консервативное лечение.Заключение. ОЭКС медиального отдела позволяет добиться улучшения качества жизни и функционального состояния уже на ранних сроках (от 3 до 18 мес.) после операции. Совершенствование операционной техники, анализ ошибок и регулярное выполнение хирургом операций ОЭКС позволят улучшить результаты и минимизировать количество осложнений

New analytic running coupling in spacelike and timelike regions

The new model for the QCD analytic running coupling, proposed recently, is extended to the timelike region. This running coupling naturally arises under unification of the analytic approach to QCD and the renormalization group (RG) formalism. A new method for determining the coefficients of the "analytized" RG equation is elaborated. It enables one to take into account the higher loop contributions to the new analytic running coupling (NARC) in a consistent way. The expression for the new analytic running coupling, independent of the normalization point, is obtained by invoking the asymptotic freedom condition. It is shown that the difference between the values of the NARC in respective spacelike and timelike regions is rather valuable for intermediate energies. This is essential for the correct extracting of the running coupling from experimental data. The new analytic running coupling is applied to the description of the inclusive $\tau$ lepton decay. The consistent estimation of the parameter $\Lambda_{QCD}$ is obtained here.Comment: REVTeX 3.1, 12 pages with 3 EPS figures; enlarged version is published in Phys. Rev.

QCDMAPT: program package for Analytic approach to QCD

A program package, which facilitates computations in the framework of Analytic approach to QCD, is developed and described in details. The package includes the explicit expressions for relevant spectral functions calculated up to the four-loop level and the subroutines for necessary integrals.Comment: 18 pages, 4 figures; QCDMAPT package is available from http://cpc.cs.qub.ac.uk/summaries/AEGP_v1_0.htm

Program for controlling the correctness of physical exercises

This document contains the description of the program for the control of the correct physical exercises performance implementation using Microsoft Kinect, the method of the comparison between live motions performed by the user and recorded motions, description of the testing of the program and also information about different approaches for gesture recognition.The work is partially supported by the Russian Foundation for Basic Research (16-07-00407, 16-07-00453, 16-47-340320 projects)

Sound generation based on image color spectrum with using the recurrent neural network

This work is devoted to development and approbation of the program for automated sound generation based on image colour spectrum with using the recurrent neural network. The work contains a description of the transition between colour and music characteristics, the rationale for choosing and the description of a recurrent neural network. The choices of the neural network implementation technology as well as the results of the experiment are describedThe work is partially supported by the Russian Foundation for Basic Research (16-47-340320 and 17- 07-01601 projects)

Spiders (Aranei) of the Terek River valley in Mozdok District of the Republic of North Ossetia–Alania, Russia

Two hundred and forty species of spiders from 29 families are reported from the Terek River valley (Mozdok District, North Ossetia, Russia). Three families (Anyphaenidae, Trachelidae, Zodariidae) and 87 species are recorded for the first time from the territory of North Ossetia. Two new species are described. Tegenaria prisnyi Ponomarev, sp. n. (Agelenidae) is similar to T. lyncea Brignoli, 1978 and differs by the shorter median apophysis, the shape and location of the prolateral arm of the conductor, the shape of the tibial apophysis, the relatively short patella of the male; widely spaced epigynal ducts and spirally twisted accessorial glands. Zora osetica Ponomarev, sp. n. (Miturgidae) is characterized by the presence of two pairs of ventral spines on metatarsi I and II, like in Z. alpina Kulczyński, 1915, Z. manicata Simon, 1878, and Z. silvestris Kulczyński, 1897. From all listed species Z. osetica Ponomarev, sp. n. differs in the shape of the tibial apophysis of the male palp, in the darker colouration of the body, colouration of legs