Исследование динамических характеристик задвижки с электроприводом

В рамках проведенной работы был приведен обзор электроприводов для задвижек, рассмотрены различные виды зубчатых зацеплений. Проанализирована интерференция зубьев циклоидального редуктора.The as part of the work, a review of the electric actuators for the valves was given, various types of gears were considered. The tooth interference of the cycloidal gearbox is analyzed

A INTERAÇÃO DA AUDITORIA AMBIENTAL NO PROCESSO DE IMPLEMENTAÇÃO DO SISTEMA DE GESTÃO AMBIENTAL

Em detrimento da crescente sensibilização pela causa ambiental, alerta-se para ofato de, em um futuro próximo, profissionais qualificados na área de auditoriaambiental serem intensamente requisitados pelas organizações. Para fomentar ointeresse do meio acadêmico e da classe contábil pela emergente área, há que sedesenvolver estudos técnicos e científicos esclarecedores dos potenciais segmentosde atuação. Assim, o artigo objetiva explicitar a função e a funcionalidade daauditoria ambiental, especificamente no processo de implementação do Sistema deGestão Ambiental (SGA). Para tanto, extraímos a essência dos critérios que regem aauditoria do SGA constantes na norma ISO 19011

Ferromagnetic Liquid Thin Films Under Applied Field

Theoretical calculations, computer simulations and experiments indicate the possible existence of a ferromagnetic liquid state, although definitive experimental evidence is lacking. Should such a state exist, demagnetization effects would force a nontrivial magnetization texture. Since liquid droplets are deformable, the droplet shape is coupled with the magnetization texture. In a thin-film geometry in zero applied field, the droplet has a circular shape and a rotating magnetization texture with a point vortex at the center. We calculate the elongation and magnetization texture of such ferromagnetic thin film liquid droplet confined between two parallel plates under a weak applied magnetic field. The vortex stretches into a domain wall and exchange forces break the reflection symmetry. This behavior contrasts qualitatively and quantitatively with the elongation of paramagnetic thin films.Comment: 10 pages, 4 figures, Submitted to Phys. Rev.

Флуориметрическая методика оценки влияния доксорубицина на жизнеспособность лактобактерий

Объектами исследования являются лекарственные препараты "Лактобактерин" и "Доксорубицин". Цель работы заключается в разработке флуориметрической методики оценки влияния доксорубицина на жизнеспособность лактобактерий. В результате исследования разработана флуориметрическая методика оценки влияния доксорубицина на лактобактерии.The object of study are drugs "Lactobacterin" and "Doxorubicin". The purpose of the work is to develop a fluorimetric methodology for assessing the effect of doxorubicin on the viability of lactobacillus. As a result of the study, a fluorimetric method for assessing the effect of doxorubicin on the viability of lactobacillus

Randomized controlled trial of oral vancomycin treatment in Clostridioides difficile-colonized patients

A gold standard diagnostic for Clostridioides difficil

Inhomogeneous magnetization in dipolar ferromagnetic liquids

At high densities fluids of strongly dipolar spherical particles exhibit spontaneous long-ranged orientational order. Typically, due to demagnetization effects induced by the long range of the dipolar interactions, the magnetization structure is spatially inhomogeneous and depends on the shape of the sample. We determine this structure for a cubic sample by the free minimization of an appropriate microscopic density functional using simulated annealing. We find a vortex structure resembling four domains separated by four domain walls whose thickness increases proportional to the system size L. There are indications that for large L the whole configuration scales with the system size. Near the axis of the mainly planar vortex structure the direction of the magnetization escapes into the third dimension or, at higher temperatures, the absolute value of the magnetization is strongly reduced. Thus the orientational order is characterized by two point defects at the top and the bottom of the sample, respectively. The equilibrium structure in an external field and the transition to a homogeneous magnetization for strong fields are analyzed, too.Comment: 17 postscript figures included, submitted to Phys. Rev.

Экономическое обоснование проекта «Доставка здорового питания»

Объектом исследования является рынок услуг, оказывающий доставку здорового питания Цель работы - обоснование открытия интернет – магазина доставки здорового питания В ходе работы решены следующие задачи: 1 проведён обзор литературы 2 проанализирован рынок здорового питания; 3 дан анализ потребительских предпочтений относительно здорового питания 4 экономически обосновано открытие интернет – магазина доставки здорового питания; 5 проведён анализ всевозможных рисков, связанных с открытием интернет - магазина.The object of the study is the market for services providing healthy food delivery. Purpose of work – substantiation of the opening of an online store of healthy food delivery In the course of work, the following tasks were solved: 1 literature review 2 analyzed the market for healthy eating; 3 gives an analysis of consumer preferences regarding healthy eating. 4 it is economically justified to open an online health food delivery store; 5 an analysis of all possible risks associated with the opening of an online store

Isolation of SARS-CoV-2 in viral cell culture in immunocompromised patients with persistently positive RT-PCR results

Immunocompromised adults can have prolonged acute respiratory syndrome coronavirus 2 (SARS-CoV-2) positive RT-PCR results, long after the initial diagnosis of coronavirus disease 2019 (COVID-19). This study aimed to determine if SARS-CoV-2 virus can be recovered in viral cell culture from immunocompromised adults with persistently positive SARS-CoV-2 RT-PCR tests. We obtained 20 remnant SARS-CoV-2 PCR positive nasopharyngeal swabs from 20 immunocompromised adults with a positive RT-PCR test ≥14 days after the initial positive test. The patients\u27