bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessing wave-turbulence separation from ADCP measurements with artifical flow data
Authors: Togneri Michael , Masters Ian , Williams Alison 
Published: September 2023

Accurate assessment of marine currents is critical for meaningful planning of tidal stream energy deployments. Methods for assessing mean flow speed are well-established, but the issue of assessing phenomena that vary over much shorter time scales than the semidiurnal tide (principally turbulence and waves) is not as settled. This is in part due to the limitations of the standard instruments used for surveying currents at potential tidal stream sites i.e., acoustic Doppler current profilers (ADCPs). Because ADCPs use multiple acoustic beams to sample single components of velocity at widely-separated spatial locations, a reliable analysis of the mean flow can be obtained by a suitable average over measurements from all beams: this approach works well for determining mean flow properties, but is less well-suited for the smaller and faster variations associated with waves and turbulence. In particular, conventional analysis approaches such as the variance method do not meaningfully distinguish between wave-driven and turbulence-driven velocity variations.
An important consequence of this is that ADCP estimates of turbulent kinetic energy (TKE) are biased high because the TKE calculation method includes wave-driven velocity fluctuations as well as those caused by turbulence. Previous work by the authors has successfully applied a mixed spectral-statistical filter to ADCP estimates of TKE from a tidal stream test site; this filter showed good performance in distinguishing between true TKE and pseudo-TKE due to wave action. However, for field data it is only possible to assess the filter’s performance with respect to wave properties: this is because independent measurements of wave properties can be obtained from a surface buoy, but there is no alternative instrumentation that can yield independent measurements of turbulence.
The study presented here addresses this shortcoming by generating an artificial flowfield with known turbulence and wave properties, sampling with a virtual ADCP, and applying the spectral-statistical filter to the results. In this way it is shown that the combined filter improves the separation of waves and turbulence over the individual filters by an even greater degree when assessed against turbulence data rather than against independent wave measurements. The study discusses the effects of different artificial turbulence generation schemes, specifically contrasting the spectral or Sandia method with the synthetic eddy method; it also discusses the tuning of spectral filter parameters for optimum separation of wave and turbulence effects.
Basin testing of the 1-2-1 M4 WEC
Authors: Howe Damon , Raju Benhur , Lynggard Hansen Christine , Wolgamot Hugh , Kurniawan Adi , Nader Jean-Roch , Shearer Chris , Stansby Peter 
Published: September 2023

The M4 family of Wave Energy Converters consist of 3 rows of floats, with the front two rows rigidly connected and a hinged connection(s) to the back row. The various possible configurations are commonly identified by the number of floats in each row – hence 1-2-1 has 1 float in front, 2 in the middle, and 1 at the rear. A study by Stansby et al 2017 [1] showed that the 1-2-1 and 1-3-2 variants had the lowest cost of energy of all configurations studied. The 1-3-2 variant has subsequently been extensively studied as it provides greater power per machine. However, the 1-2-1 machine has received less attention. In this paper we report, for the first time, wave basin testing of a 1-2-1 variant. The design is a 1:15 scaled version of a 1-2-1 M4 suitable for deployment in the prevailing short period wind waves in King George Sound, Albany, on the south coast of Western Australia.

The tests were carried out in the Model Test Basin at the Australian Maritime College, Tasmania. This basin is 35 m x 12 m and tests were run with a water depth of 0.8 m. For modelling operational conditions, the power take-off was represented by a pneumatic ram; in extreme seas the power take-off was removed.

Decay tests, irregular operational seas and irregular extreme seas were tested. All waves were long crested. Sea states tested were taken from the scatter diagram for the deployment site in King George Sound. Body displacements, mooring loads, run-up on the middle floats and forces in the PTO (where installed) were measured. Measured motions and power were compared to a linear model. The level of agreement is compared with previous tests on other variants of M4 in the published literature, including the 1-3-2 variant tested in Carpintero-Moreno et al [2] and the 1-1-1 variant tested in Stansby et al [3]. Compared to some other configurations (such as 1-3-2) the 1-2-1 M4 is more prone to roll. Implications of the test results for deployment in King George Sound are discussed.

[1] Stansby, P., Moreno, E.C. and Stallard, T., 2017. Large capacity multi-float configurations for the wave energy converter M4 using a time-domain linear diffraction model. Applied Ocean Research, 68, pp.53-64.

[2] Carpintero-Moreno, E. and Stansby, P., 2019. The 6-float wave energy converter M4: Ocean basin tests giving capture width, response and energy yield for several sites. Renewable and Sustainable Energy Reviews, 104, pp.307-318.

[3] Stansby, P., Moreno, E.C. and Stallard, T., 2015. Capture width of the three-float multi-mode multi-resonance broadband wave energy line absorber M4 from laboratory studies with irregular waves of different spectral shape and directional spread. Journal of Ocean Engineering and Marine Energy, 1, pp.287-298.
ГІДНА ПРАЦЯ ЯК ФАКТОР ЗАЛУЧЕННЯ ДО РОБОТИ РІЗНИХ КАТЕГОРІЙ ПРАЦІВНИКІВ У КРАЇНАХ ЄС
Authors: Олександр Шубалий  , Андрій Єфімов  
Published: September 2023

У цій статті вивчено суть та роль гідної праці для забезпечення більшого залучення до роботи різних категорій працівників в контексті виконання Цілей сталого розвитку ООН, зокрема Цілі 8 «Гідна праця та економічне зростання». Основна мета статті полягає у вивченні ролі гідної праці як фактора залучення до роботи різних категорій працівників у країнах ЄС. Гідна праця була визначена МОП у 1999 році як така, що ґрунтується на принципах свободи, рівності, безпеки та людської гідності. Відповідно до МОП, гідна праця охоплює чотири основні виміри: зайнятість, соціальний захист, права працівників і соціальний діалог. Для доведення впливу гідної праці на залучення різних категорій працівників було використано результати Шостого європейського дослідження умов праці EWCS 2015. У цьому дослідженні визначено сім аспектів, пов’язаних з гідною працею, які можуть вплинути на залучення до роботи: фізичне середовище, інтенсивність роботи, якість робочого часу, соціальне середовище, навички та розважливість, перспективи та заробітна плата. Результати дослідження показали, що залежні самозайняті особи мають більш нестабільні умови праці, ніж решта професійних категорій за більшістю проаналізованих індексів. В цьому контексті важливо на рівні ЄС затвердити мінімальні стандарти для забезпечення гідної праці у різних галузях і регіонах. Зроблено висновок, що забезпечення гідної праці може стати не тільки інструментом для досягнення відповідної Цілі сталого розвитку ООН (Ціль 8), а й дієвим економічним стимулом до зростання рівня зайнятості населення, яка мала негативні тенденції протягом останніх років через пандемію COVID-19 та початок повномасштабної війни в Україні.
Health Consequences of Smokeless Tobacco Substance Abuse among High School Adolescents
Authors: Mangiro Fahad Ali , Mangrio Shafqat Ali , Fatima Musarat 
Published: September 2023

Background: People currently reside in a smokeless tobacco -oriented society, and the threat of illicit substances is visible in every part of the world, including Pakistan. Moreover, Substance abuse has become a big problem in our society now days, therefore current study conducted on health consequences and prevalence of smokeless tobacco substance abuse among high school adolescents at taluka Qasimabad, Hyderabad, Sindh, Pakistan.
Methodology: A cross sectional study conducted through predesigned survey form, in which 308 respondents were selected at random level from the full targeted sample of ninth and tenth grade pupils..
Results: the researcher revealed 22.9% of smokeless tobacco abuse among high school adolescents, in which male participants showed high prevalence as compare female. Furthermore, Areca nuts (57.1%), Safina sachet smokeless tobacco (19.2%), betel (14.6%), and Tara chewing smokeless tobacco (13.3%) had the highest percentage of smokeless tobacco used. In addition, data showed significant 0.05 association with smokeless tobacco abuse with health-related problem, i.e., throat pain, cough, mouth ulcer and headache, abdominal pain, loss of appetite and sleeping pattern disturb problem.
Conclusion: It is revealed that High school adolescents abused smokeless tobacco substances and suffered worst health consequences.
Analyzing Translation Errors in Indonesian-English Business Letters
Authors: Williyan Aldha , Umar Umar - , Vanesa Vica Via , Aini Ai Nurul 
Published: September 2023

This paper discussed the translation error from a business letter made based on American Translation Association (ATA's) made by EFL Learners'. In this research, the researchers used a descriptive qualitative method. The data source in this research is two EFL Learners' who are in translation class with better English skills than other data. Data collection in this study was carried out by taking two data from a total of 36 business letter translating task data given by translation class lecturers. The data is classified based on the type of error according to ATA's Framework for Standard Error Making Classification. The results of the analysis show that there are 18 translation errors in 11 types of 26 types of translation errors with style error as the most frequently found error. Style error is the error that has the highest nominal by appearing five times out of 18 the number of errors with a percentage 27,8%. Finding errors from the two data proves that EFL Learners' who are studying translation studies still have deficiencies. Educators and students must work together so that translation errors produced by EFL Learners' can be reduced.
IMPROVING COMPOSITION ABILITY THROUGH SERIES IMAGE MEDIA IN BIPA LEARNING TO MALAY-INDONESIA STUDENTS OF HANKUK UNIVERSITY OF FOREIGN STUDIES SOUTH KOREA
Authors: Sulaeman Agus 
Published: September 2023

This classroom action research aims to improve the ability to compose through serial image media in learning Indonesian for foreign speakers of Korean for the first time in an audiovisual course for 4th semester students. This research conducted on 30 semester 4 students, consisting of 15 male students and 15 female students. The learning used in this research is classroom action research with the Kemmis and McGartgart spiral model. Improved test scores compose of initial requirement of cycle I to cycle III is the average value at the beginning conditions was 59.67 with a completeness percentage of 43.33% (13 students), in cycle I it increased to 65.33 with a completeness percentage of 60% ( 18 students), in cycle II it increased to 72 with a completeness percentage of 73.33% (22 students) and in cycle III it increased to 75.66 with a completeness percentage of 86.66% (26 people). The results obtained from the class action research on 30 students, namely by increasing the average value of the initial conditions of 59.67 increased to 65.33 in cycle I, in cycle II increased to 72 and in cycle III increased to 75.66. It can be concluded that serial picture media in Indonesian language learning for foreign speakers of composing material can improve the writing ability of Malay-Indonesian study program students. Educators can use serial picture media as learning media which can improve students' composing abilities, so that students can easily develop ideas. or his mind in composing.
AN ANALYSIS OF MORAL VALUE IN THE MOVIE “AQUAMAN” DIRECTED BY JAMES WAN (2018)
Authors: Priyoto Priyoto , Priskila Irene 
Published: September 2023

This study aims to know the moral values and the types of moral values in Aquaman film. with moral approach. There are two research problems proposed from this “AQUAMAN” analyzing film. Based on the research problems, the researcher uses descriptive qualitative method in collecting the data. To analyze this film, the researcher applies moral value approach. There are two sources of data used to analyze the related issues, namely primary and secondary data sources. Primary data sources from the film Aquaman (2018) and other sources such as journals, websites, previous research, and other articles. In conclusion, the findings of this research shows there are many moral values found in the movie “AQUAMAN”, such as: love and affection, care, bravery, and sincerity. Then, Love, affection, care, bravery, and sincerity are very important parts of human life
Control of heat generation in cogeneration gas turbine plants with regeneration at partial loads under various loading modes
Authors: Дологлонян А.В. , Матвеенко В.Т. , Клименко А.Г. 
Published: September 2023

Предметом рассмотрения в статье является исследование влияния перепуска воздуха мимо регенератора на характеристики когенерационных газотурбинных установок с регенерацией теплоты на частичных нагрузках при генераторном и винтовом способах нагружения. Проведенные исследования показали, что относительная теплота, переданная на теплоснабжение, возрастает, а КПД установок падает с понижением относительного расхода воздуха через регенератор при любой нагрузке. Установлено, что для микрогазотурбинных установок (МГТУ) относительная теплота, переданная на теплоснабжение, возрастает с понижением относительного расхода воздуха через регенератор и снижается при уменьшении относительной мощности. Показано, что байпасирование циклового воздуха мимо регенератора позволяет изменять потоки механической и тепловой энергии в газотурбинном двигателе независимо друг от друга. Выявлено, что на любом режиме эксплуатации МГТУ уменьшение расхода воздуха через регенератор приводит к возрастанию мощности, что необходимо учитывать в процессе регулирования.
The subject of the article is the study of the effect of air bypass past the regenerator on the characteristics of cogeneration gas turbine plants with heat recovery at partial loads with generator and screw loading modes. The conducted studies have shown that the relative heat transferred to heat supply increases, and the efficiency of the plants decreases with a decrease in the relative air flow through the regenerator at any load. It has been established that for micro gas turbine plants (MGTP) the relative heat transferred to heat supply increases with a decrease in the relative air flow through the regenerator and decreases with a decrease in the relative power. It is shown that bypassing the cycle air past the regenerator makes it possible to change the flows of mechanical and thermal energy in a gas turbine engine independently of each other. It was found that in any mode of operation of MGTP, a decrease in air flow through the regenerator leads to an increase in power, which must be taken into account in the regulation process.
Prospects for underwater transportation of spent nuclear fuel
Authors: Каминский В.Ю. , Скороходов Д.А. 
Published: September 2023

Подводные грузоперевозки имеют существенный потенциал для развития особенно с учетом современной тенденции к преимущественному использованию экологически устойчивых и эффективных видов транспорта. Исследована транспортная проблема в Арктической зоне РФ и показана возможность ее решения с применением подводной робототехники, в частности с помощью автономных необитаемых подводных аппаратов (АНПА). Показано, что смарт-технологии обеспечивают автоматизацию и контроль судовых систем, позволяя осуществить автоматическую прокладку курса, динамическое позиционирование, контроль грузовых операций и балластных вод и др. Утверждается, что применение искусственного интеллекта при подводных грузоперевозках, в том числе и с помощью грузовых АНПА, способствует повышению безопасности и эффективности процесса транспортировки. Важным аспектом функционирования АНПА является планирование маршрутов движения. Это сложная задача, требующая анализа большого количества данных и учета множества факторов. Современные технологии и методы позволяют АНПА реализовывать эффективные решения, оптимизировать маршруты и обеспечивать безопасное и экономичное движение. Утверждается, что подводная транспортировка отработавшего ядерного топлива позволяет использовать возможности подводной среды и преимущества автономных подводных аппаратов, а также сокращает экологические риски и обеспечивает безопасность и экономическую эффективность перевозки.
Underwater cargo transportation has a significant potential for development, especially taking into account the current trend towards the predominant use of environmentally sustainable and efficient modes of transport. The transport problem in the Arctic zone of the Russian Federation is investigated and the possibility of its solution with the use of underwater robotics, in particular with the help of autonomous uninhabited underwater vehicles (ANPA), is shown. It is shown that smart technologies provide automation and control of ship systems, allowing for automatic heading, dynamic positioning, control of cargo operations and ballast water, etc. It is argued that the use of artificial intelligence in underwater cargo transportation, including with the help of cargo ANPA, contributes to improving the safety and efficiency of the transportation process. An important aspect of the functioning of the ANPA is the planning of routes. This is a complex task that requires analyzing a large amount of data and taking into account many factors. Modern technologies and methods allow ANPA to implement effective solutions, optimize routes and ensure safe and economical movement. It is argued that the underwater transportation of spent nuclear fuel makes it possible to use the capabilities of the underwater environment and the advantages of autonomous underwater vehicles, as well as reduces environmental risks and ensures the economic efficiency of transportation.
Environmental safety: modern technologies for detecting accidental oil spills on the sea surface
Authors: Малыгин И.Г. , Фахми Ш.С. , Королев О.А. 
Published: September 2023

В статье рассматриваются проблемы разливов нефтепродуктов на морской поверхности и предлагаются инструменты их обнаружения для совершенствования процесса мониторинга и дальнейшей ликвидации последствий. На основе статистических данных анализируются основные источники и главные причины возникновения разливов нефти. Предлагаются современные технологии и методы мониторинга загрязнений, которые позволяют обнаруживать и контролировать разливы нефтепродуктов с целью обеспечения экологической безопасности морской среды. Особое внимание в работе уделяется новым методам обнаружения разливов нефти, основанным на обработке изображений, получаемых со спутников, камер беспилотных летательных аппаратов (БПЛА) и других источников фото- и видеофиксации. Анализируется их потенциал для повышения эффективности мониторинга и оперативности реагирования при локализации инцидентов за счет повышения ситуационной осведомленности оперативных служб Минтранса и МЧС России, что позволяет минимизировать последствия происшествий. Применение предложенных авторами методов обработки изображений позволят снизить риски возникновения чрезвычайных ситуаций и минимизировать негативные последствия разливов нефтепродуктов на морскую экосистему.
The article deals with the problems of oil spills on the sea surface and suggests tools for their detection to improve the monitoring process. Based on statistical data, the main sources and main causes of oil spills are analyzed. Modern technologies and methods of pollution monitoring are proposed, which allow detecting and controlling oil spills in order to ensure the environmental safety of the marine environment. Particular attention is paid to new methods for detecting oil spills, based on the processing of images obtained from satellites, cameras of unmanned aerial vehicles (UAVs) and other sources of photo and video recording. Their potential is analyzed to improve the efficiency of monitoring and promptness of response when localizing incidents by increasing the situational awareness of operational services in the Central Control Center of the Main Directorate of the Ministry of Emergency Situations of Russia, which allows minimizing the consequences of incidents. The use of image processing methods proposed by the authors will reduce the risks of incidents and minimize the negative consequences of oil spills on the marine ecosystem and society as a whole.
Application of modern intelligent technologies for designing polymer composite structures
Authors: Коршунов В.А. , Мудрик Р.С. , Пономарев Д.А. , Родионов А.А. 
Published: September 2023

В данной статье рассмотрен процесс проектирования как один из этапов жизненного цикла конструкций из полимерных композиционных материалов. Для решения особенностей проектирования предлагается система оптимизационного проектирования, которая обеспечивается разработкой цифровой платформы с применением современных интеллектуальных технологий с целью получения изделия с заданными потребительским свойствами. Архитектур цифровой платформы, как интеллектуальной системы проектирования и производства опирается на концепцию базы знаний, имеющую трехслойную иерархическую структуру. Выделены наиболее важные составляющие цифровой платформы – подсистема инженерного анализа, подсистема искусственного интеллекта. Рассмотрена структура потока информации при работе цифровой платформы, отмечены особенности применительно к морским инженерным сооружениям. Для демонстрации оптимизационного подхода рассмотрена процедура проектирования с применением инструментов разрабатываемой цифровой платформы.
This article considers the design process as one of the stages of the life cycle of structures made of polymer composites. In order to solve the peculiarities of design, the system of optimized design is proposed, which is provided by the development of a digital platform using modern intelligent technologies in order to obtain a product with the given consumer properties. The architecture of the digital platform as an intelligent design and production system is based on the concept of a knowledge base with a three-layer hierarchical structure. The main components of the digital platform - subsystem of engineering analysis, subsystem of artificial intelligence - are highlighted. The structure of the information flow during the operation of the digital platform is considered and the peculiarities related to offshore engineering structures are noted. In order to demonstrate the optimization approach, the design process using the tools of the digital platform under development is considered.