bluuebunny/crossref_metadata_2025_split huggingface dataset:
Application of a neural network for the additional views synthesis in the challenge of constructing a virtual marine onboard simulator
Authors: Татаренков Д.А. , Рогозинский Г.Г. , Малыгин И.Г. , Кутлыярова А.А. 
Published: September 2022

В данной статье представлена усовершенствованная технология обучения корабельного состава. Одной из особенностей технологии является использование виртуальной реальности для имитации рабочего пространства экипажа и нештатных ситуаций. Рассматриваемая технология может быть использована для создания тренажеров морских судов с использованием киберфизических систем. Практика морской безопасности в безопасной среде возможна путем сочетания методов рендеринга виртуального рабочего пространства и частичного воспроизведения органов управления кораблем в виде интерактивных интерфейсов между обучаемым и средой виртуальной реальности тренажера. Симуляция непредвиденных обстоятельств — это простой и эффективный метод обучения, когда у члена экипажа есть определенное количество свободного времени. Основная цель данной статьи — представить технологию-прототип, способную синтезировать виртуальные ракурсы в иммерсивной среде на основе реальных изображений и соответствующих карт глубины пространства, что значительно сокращает время на разработку модели корабля для создания его симулятора. Основное внимание в статье уделено методам формирования ракурса в условиях шести степеней свободы устройств виртуальной реальности. Рассмотрен метод заполнения возникающих пустот на ракурсах с применением генеративно-состязательной свёрточной нейронной сети.
This article presents an improved technology for training ship crews. One of the features of the technology is the use of virtual reality to simulate the workspace of personnel and emergency situations. The technology under consideration can be used to create simulators for sea vessels using cyber-physical systems. The practice of maritime safety in a safe environment is possible by combining the methods of rendering a virtual workspace and partial reproduction of the ship's controls in the form of interactive interfaces between the trainee and the virtual reality environment of the simulator. Contingency simulation is a simple and effective training method when a crew member has a certain amount of free time. The main goal of this article is to present a prototype technology capable of synthesizing virtual views in an immersive environment based on real images and corresponding depth maps, which significantly reduces the time for developing a ship model for creating its simulator. The main attention in the article is paid to the methods of angle formation in the conditions of six degrees of freedom of virtual reality devices. A method for filling gaps and cracks on views using a generative-adversarial convolutional neural network is considered.
A new algorithm for detecting and separating marine objects from the background in surveillance systems
Authors: Фахми Ш.С. , Королев О.А. , Бородина О.В. 
Published: September 2022

Основными проблемами при построении систем искусственного зрения в области морского транспорта являются разработка и внедрение эффективных алгоритмов семантического анализа разворачивающихся на месте происшествия событий, позволяющих учитывать влияние внешних и внутренних факторов при процессе распознавания силуэта объекта исследования. При этом к внешним факторам можно отнести внешнее освещение, перемещение морского объекта, его различные признаки и свойства, а к внутренним ‑ скорость обработки сигнала изображения и вычислительную сложность системы наблюдения. Главная задача в области обнаружения и распознавания образов морских объектов состоит в выявлении и отделении на изображениях объекта интереса от фона в условиях шума и помех. В работе предложен новый метод обнаружения и отделения объектов морского транспорта от фона на основе структурированного представления пирамиды изображения, полученной в результате полигонально-рекурсивного разбиения на полигоны различной формы и размера. В статье приведены результаты моделирования предложенного метода, протестированного с использованием различных видеопотоков, и выполнена оценка скорости обнаружения объектов морского транспорта с его помощью, а также представлены результаты его работы в сравнении с уже известными подходами.
The main problems in the construction of artificial vision systems in the field of maritime transport are the development and implementation of effective algorithms for the semantic analysis of events unfolding at the scene of events, which allow taking into account the influence of external and internal factors in the process of recognizing the silhouette of an object of study. In this case, the external factors include external illumination, the movement of a marine object, its various external features and properties, and the internal factors include the speed of image signal processing and the computational complexity of the observation system. The main task in the field of detection and recognition of images of marine objects is to identify and separate the object of interest from the background in images under conditions of noise and interference. The paper proposes a new method for detecting and separating objects of maritime transport from the background based on a structured representation of the image pyramid obtained as a result of polygonal-recursive partitioning into polygons of various shapes and sizes. The article presents the results of modeling the proposed method, tested using various video streams, and the estimation of the speed of detection of objects of maritime transport with its help, as well as the results of its work in comparison with already known approaches.
Study of Local Combined Heat Impact on Permanent Joints
Authors: Абашкин Е.Е. , Ткачева А.В. 
Published: September 2022

Работа посвящена построению математической модели процесса электородуговой наплавки на поверхность стальной пластины. Материал пластины принимается упруго-пластическим, деформации малыми и состоящими из упругих и пластических. Обратимые (упругие) деформации связаны с напряжениями законом Дюамеля-Неймана, необратимые (пластические) зарождаются и растут благодаря пластическому течению в рамках ассоциированного закона пластического течения. Упругие модули и предел текучести полагаются зависящими от температуры. В качестве условия пластического течения выбрано условие Мизиса, в котором учтена способность металла сопротивляться необратимой деформации (вязкость). Исследуется влияние предварительного равномерного подогрева стальной пластины на величину остаточных напряжений в ней. Приводиться зависимость остаточных напряжений, расположенных в материале пластины, от величины предварительного температурного подогрева. В результате делается вывод о том, что достаточно равномерно прогреть пластину до 200 °C – 250 °C, чтобы снизить значения максимальных напряжений до благоприятного уровня.
The work is devoted to the construction of a mathematical model of the process of electric arc surfacing on the surface of a steel plate. The plate material is assumed to be elastic-plastic, deformations are small and consist of elastic and plastic. Reversible (elastic) deformations are related to stresses by the Duhamel-Neumann law, irreversible (plastic) deformations arise and grow due to plastic flow within the framework of the associated plastic flow law. The elastic moduli and yield strength are assumed to be temperature dependent. The Miesis condition was chosen as the plastic flow condition, which takes into account the ability of the metal to resist irreversible deformation (viscosity). The influence of preliminary uniform heating of a steel plate on the value of residual stresses in it is investigated. The dependence of residual stresses located in the plate material on the value of preliminary temperature heating is given. As a result, it is concluded that it is sufficient to heat the plate evenly up to 200 °C - 250 °C in order to reduce the values of maximum stresses to a favorable level.
Facile Characterization of Titanium Dioxide Nano- particles Prepared via Hydrothermal Method with in-situ Surface Modification
Authors: Srivastava Soamyaa , Manjhi Jayanand 
Published: September 2022

Aim: The present study is focused on the synthesis and characterization of titanium dioxide nanoparticles prepared via the hydrothermal method prepared via in-situ surface modification.
Purpose of the study: The proposed research is based on the requirement of alternate antimicrobial therapies. The global misuse and overuse of antibiotics have given rise to the antibiotic resistance crisis. The emergence of multi-drug resistant bacteria has failed the conventional treatment methods involving antibiotics. To meet the need for efficient alternate strategies, metal oxide nanoparticles such as titanium dioxide are explored since it's known for their preventing and treating infections.
Method: Titanium dioxide nanoparticles were successfully synthesized via hydrothermal and Surface modification of nanoparticles in dehydrated ethanol at room temperature. The obtained nanoparticles are characterized by utilizing Scanning Electron Microscope, Transmission Electron Microscope, Energy Dispersive X-ray Spectroscopy, Zeta Potential Analysis, Thermogravimetric analysis, and Fourier transform Infrared spectroscopy.
Results: According to scanning electron microscopy and transmission electron microscopy, the morphological analysis of the synthesized titanium dioxide was spherical shaped and had an average size of 5-20nm and a size distribution of 14-20nm. The Energy Dispersive X-ray spectroscopy analysis depicted the percentage of elements in TiO2 as Ti (47.10%) and O2 (52.90%). The zeta potential for titanium dioxide was reported as -13.39, and the negative value indicated superior physical stability of nanoparticles in a suspension. The Fourier Transform Infrared spectroscopy peak at 1417.68 indicated the O-Ti-O bond in anatase morphology. While Thermogravimetric analysis showed three main stages of mass loss, there was no mass loss after 503°C, which started oxide formation.
Conclusion: It was concluded from the present study that the synthesis of titanium dioxide is an economical process and yields excellent nanoparticles via the hydrothermal method. Characterization of the nanomaterial allowed us to determine the thermal stability, morphology, and purity of titanium dioxide nanoparticles.
Extinguishing efficiency of mixtures of pentafluorobutane with short-lived gas extinguishing agents
Authors: Копылов Павел Сергеевич 
Published: September 2022

Показана необходимость снижения эмиссии в атмосферу газовых огнетушащих веществ (ГОТВ), обладающих большим потенциалом глобального потепления. Описан возможный способ сокращения объема применения парниковых газов путем создания смесевых газовых огнетушащих веществ, один компонент которых быстрее распадается в пламени, ускоряя деструкцию второго, более прочного химического соединения, тем самым улучшая ингибирующий эффект. Приведены экспериментальные данные, подтверждающие результативность предложенного способа повышения огнетушащей эффективности смесевых ГОТВ.
The article describes a possible way to increase the efficiency of gas extinguishing agents by creating mixed compositions. It consists of six parts including an introduction, a section dedicated to the acceleration of destruction, a description of experimental equipment, results and discussion, conclusions and references. The paper analyzes the situation in the field of gas fire extinguishing in the Russian Federation in connection with the ratification of the Kigali Amendment to the Montreal Protocol. Possible solutions to reduce the emission of greenhouse extinguishing gases are given. There is described a method for accelerating the destruction of gas extinguishing agents in a flame by creating a mixed composition, one component of which decays faster in the flame, accelerating the decay of another more chemically durable substance, thereby increasing the inhibitory effect. A series of experiments was carried out on an experimental installation designed to determine the minimum extinguishing concentration to identify the positive effect of the decay of pentafluorobutane on the destruction of perfluoroethyl isopropyl ketone and perfluoroisohexene compounds. The positive effect of accelerating the decay of perfluoroethyl isopropyl ketone due to additional heat release during the transformation of СFH into a flame on its extinguishing efficiency has been proved. When pentafluorobutane is added to perfluoro-2-methylpentene-2 or perfluoro-1,2-dimethylcyclobutane their extinguishing efficiency does not improve: the possible positive effect of accelerating the decay of compounds with the general formula CF in the flame in the presence of an additive СFH is offset by heat release during its oxidation.
Preventive measures for citizens to rescue from high-rise buildings in case of fire
Authors: Логинов Владимир Иванович , Вищекин Максим Вадимович , Дымов Сергей Михайлович , Русанов Дмитрий Юрьевич 
Published: September 2022

В статье рассмотрен вопрос об упреждающих мероприятиях, доступных гражданам при подготовке к спасанию из высотных зданий при пожаре. Приведены вероятные сценарии развития пожара и оптимальный порядок действий. Материал имеет целью помочь рядовому обывателю наиболее рационально использовать имеющееся у человека время с начала возгорания до наступления первого из опасных факторов пожара. Предлагаемые решения не обременительны ни с организационной, ни с финансовой стороны и могут быть приняты за базовый уровень подготовки к индивидуальному спасанию из высотных зданий при различных чрезвычайных ситуациях.
The article considers the issue of proactive measures for citizens in preliminary preparation for rescue from high-rise buildings during a fire. Recommended means and probable scenarios of fire development with the optimal scheme of actions are given. The fire is always a sudden event, so it is necessary to prepare fire alarm and rescue means preliminarily and to elaborate the order of their application depending on the situation in the case of fire inside an apartment. There are distinguished from the list of normatively established primary and secondary fire hazrds two new hazards not having numerical expression namely “shortage of time” and “unpredictability”. These factors cause most of the accidents in the residential sector which is clearly seen in the materials of the statistical compendium. The material is intended to help the ordinary human to use the time available to a person from the beginning of a fire to the onset of the first of fire hazards in the most rational way. The proposed solutions are not burdensome either in organizational or financial aspects and can be taken as a basic level of preparation for individual rescue from high-rise buildings in various emergencies.
State of the issue of pulse fire extinguishing
Authors: Казаков Алексей Васильевич , Емельянов Роман Александрович , Бухтояров Дмитрий Викторович , Полтавец Денис Владимирович 
Published: September 2022

Проведен анализ имеющихся разработок средств пожаротушения, основанных на импульсном способе подачи огнетушащего вещества (ОТВ). Сделаны предположения о механизме прекращения горения при подаче ОТВ в очаг пожара импульсным способом. Отмечена перспективность применения импульсного способа подачи ОТВ в различные очаги возгорания. Принцип построения импульсного пожаротушения позволяет легко составлять конфигурацию под различные требования, а также дает возможность наращивания существующих систем противопожарной защиты.
The problem of eliminating fires spreading over large areas in closed and semi-closed spaces (warehouses, cable channels, high-rise buildings, etc.) is important and difficult to solve. Firstly, it is difficult to get close to such fire, therefore it is necessary either to solve the problem of supplying extinguishing agents from a long distance which complicates the fire extinguishing process or to install automatic fire extinguishing systems in close proximity to the source that is very difficult due to potentially destruction by possible explosions. Secondly, in order to suppress a developed fire from a long distance it is necessary to supply extinguishing agent continuously for a long time or to supply a large amount of extinguishing powder directly to the flame source at the same time. It is a very difficult task since it is necessary to get into a small diameter relative to the distance to it. The aforesaid suggests that it is necessary to investigate various ways of supplying a fire extinguishing agent. The paper provides an overview of the development of fire extinguishing means based on a pulse method of supplying the extinguishing agent to the ignition source. Currently special attention is paid both to the development of such technologies and to the creation of such fire extinguishing tools that would allow suppressing fire without coming into direct contact with it. Direct contact with fire means that a person exposes to a number of fire hazards: high temperatures, lack of air and visibility, risks associated with the unpredictability of the situation. In some cases, successful suppression of the source of combustion can be ensured by means and methods of extinguishing that allow remotely supplying of fire extinguishers directly to the combustion zone in a short period of time (1-2 s) in the amount necessary to suppress the fire. The pulse supply method developed and implemented in various kinds of devices meets this requirement in terms of its potential capabilities.
Purpura de henoch scholein relacionada con uso de rivaroxaban un evento adverso infrecuente y de mecanismos aun desconocidos, descripcion de un caso
Authors: Theran león Juan Sebastián , Dulcey Sarmiento Luis Andrés , Rolanlly Robles Jhurgen , Torres Liñan Juan Ariel , Aguas Cantillo Melissa Julieth 
Published: September 2022

Introducción: Rivaroxabán es un novedoso anticoagulante oral de acción directa (DOAC) que se utiliza tanto para el tratamiento como para la prevención de enfermedades tromboembólicas. Debido al mecanismo de acción; el efecto secundario más común se puede observar con hemorragia. Aquí informamos que una paciente con trombosis venosa profunda de los miembros inferiores quien presentó una Purpura de Henoch Scholein, mientras tomaba rivaroxabán.
Caso clínico: Paciente femenina de la VII decada de la vida, se le administró rivaroxabán, luego de intolerancia a warfarina. En el día 4 de la primera semana de tratamiento, el paciente ingresó al servicio de urgencias con sangrado de la mucosa oral y manchas petequiales. El paciente fue diagnosticado de Purpura de Henoch Scholein debido al uso de rivaroxabán, luego de descartarse la mayoría de las posibilidades. Después de interrumpir el tratamiento con rivaroxabán, los síntomas hemorrágicos del paciente remitieron, los síntomas se resolvieron por completo y desaparecieron las petequias. La paciente se encuentra controlada tras la omision del tratamiento y resolvio el cuadro clinico totalmente.
Conclusión: Hasta el momento son muy escasos los reportes de este tipo al tomar anticoagulantes orales directos. Además de los conocidos efectos secundarios del tratamiento con rivaroxabán, se debe tener en cuenta que también se puede desarrollar trombocitopenia. La escala de probabilidad de reacción adversa a medicamentos de Naranjo calculada fue de 7 puntos. (causa probable de la Purpura de la paciente).
The Effect of Psychiatric Comorbidity on Healthcare Utilization for Youth With Newly Diagnosed Systemic Lupus Erythematosus
Authors: Davis Alaina , Faerber Jennifer , Ardalan Kaveh , Katcoff Hannah , Klein-Gitelman Marisa , Rubinstein Tamar B. , Cidav Zuleyha , Mandell David S. , Knight Andrea 
Published: September 2022

ObjectiveTo examine the effect of psychiatric diagnoses on healthcare use in youth with systemic lupus erythematosus (SLE) during their first year of SLE care.MethodsWe conducted a retrospective cohort study using claims from 2000 to 2013 from Clinformatics Data Mart (OptumInsight). Youth aged 10 years to 24 years with an incident diagnosis of SLE (≥ 3 International Classification of Diseases, 9th revision, codes for SLE 710.0, > 30 days apart) were categorized as having: (1) a preceding psychiatric diagnosis in the year before SLE diagnosis, (2) an incident psychiatric diagnosis in the year after SLE diagnosis, or (3) no psychiatric diagnosis. We compared ambulatory, emergency, and inpatient visits in the year after SLE diagnosis, stratified by nonpsychiatric and psychiatric visits. We examined the effect of childhood-onset vs adult-onset SLE by testing for an interaction between age and psychiatric exposure on outcome.ResultsWe identified 650 youth with an incident diagnosis of SLE, of which 122 (19%) had a preceding psychiatric diagnosis and 105 (16%) had an incident psychiatric diagnosis. Compared with those without a psychiatric diagnosis, youth with SLE and a preceding or incident psychiatric diagnosis had more healthcare use across both ambulatory and emergency settings for both nonpsychiatric and psychiatric-related care. These associations were minimally affected by age at time of SLE diagnosis.ConclusionPsychiatric comorbidity is common among youth with newly diagnosed SLE and is associated with greater healthcare use. Interventions to address preceding and incident psychiatric comorbidity may decrease healthcare burden for youth with SLE.
Patient-Reported Outcomes Among Transition-Age Young Adults With Juvenile Idiopathic Arthritis in the Childhood Arthritis and Rheumatology Research Alliance Registry
Authors: Smitherman Emily A. , Chahine Rouba A. , Bitencourt Nicole , Rahman A.K.M. Fazlur , Lawson Erica F. , Chang Joyce C. 
Published: September 2022

ObjectiveTo evaluate patient-reported care utilization and outcomes among young adults with juvenile idiopathic arthritis (JIA), including factors associated with complete transfer to adult rheumatology.MethodsWe included young adults with JIA enrolled in the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry from 2015 to 2019 with age ≥ 18 years at their last clinical site visit. We used data from the CARRA Registry Long-term Follow-up program, which follows inactive CARRA Registry patients and collects patient-reported information through phone surveys. We compared the characteristics of respondents with complete and incomplete transfer to adult rheumatology care at their first Long-term Follow-up phone survey.ResultsWe identified 540 young adults with JIA; 187 (35%) responded to the Long-term Follow-up phone survey. The 54% of respondents with complete transfer to adult rheumatology were slightly older and reported more self-assessed disease activity, morning stiffness, and pain compared to those with incomplete transfer. Biologic use was high at both timepoints and did not differ by transfer status. Patients who completed the transfer were more likely to have private insurance and be actively pursuing postsecondary education compared to those with an incomplete transfer. Across the cohort, 65% reported problems with pain or discomfort and 45% with anxiety or depression.ConclusionYoung adult respondents with JIA in the CARRA Registry commonly report persistent medication use, but still report more problems with pain as compared to population norms. Additional work is needed to understand how best to address comorbid pain around the period of transition to adult care.