bluuebunny/crossref_metadata_2025_split huggingface dataset:
Device for providing emergency pressure relief during testing of underwater equipment using a multiplier chamber
Authors: Линёв Д.В. , Шалаев Д.Ю. , Дворникова А.А. 
Published: September 2024

В статье приведено описание устройства для аварийного выравнивания давления внутри и снаружи специальной технологической оснастки (капсулы-мультипликатора) для проведения прочностных испытаний глубоководной техники. Определены требуемые характеристики такого устройства, позволяющие обеспечить безопасность оснастки и гидробарического стенда при возникновении нештатной ситуации в процессе испытаний. Приведены и проанализированы результаты испытаний контрольных образцов с целью верификации прогнозируемой нагрузки, при которой происходит автоматическое срабатывание устройства. Показано хорошее соответствие результатов конечно-элементных расчетов и данных экспериментальной проверки. Оснащение гидробарических стендов капсулами-мультипликаторами с предлагаемым устройством аварийного сброса давления обеспечит эффективное практическое использование стендов при проведении как исследовательских, так и сдаточных испытаний прочных корпусов сверхглубоководных аппаратов, предназначенных для эксплуатации на предельных глубинах Мирового океана, а также их элементов – прочных модулей, иллюминаторов, блоков плавучести, забортных устройств и т.п.
The paper describes a device for emergency pressure equalization inside and outside of special technological equipment (multiplier capsule) for conducting strength tests of deep-sea equipment. The required characteristics of such a device have been determined to ensure the safety of the equipment and the high-pressure facility in the event of an emergency situation during testing. The test results of control specimens are presented and analyzed in order to verify the predicted load at which the device automatically operates. A good agreement between the results of finite element calculations and the experimental data is shown. Equipping hydrobaric stands with multiplier capsules with the proposed emergency pressure release device will ensure effective practical use of high-pressure facilities during both research and acceptance tests of pressure hulls of ultra-deep-sea vehicles intended for operation at the extreme depths of the World Ocean, as well as their elements – pressure containers, viewports, buoyancy modules, outboard equipment, etc.
Determination of the resistance of solid ice to the movement of an icebreaker using a model experiment
Authors: Грамузов Е.М. , Калинина Н.В. , Блинов К.Д. 
Published: September 2024

Наиболее универсальным средством продления навигации является ледокольный флот. В этих процессах важную роль играют теоретические и экспериментальные исследования ледовой ходкости. Описан теоретико-экспериментальный способ определения сопротивления при движении судов в сплошных льдах непрерывным ходом. Полуэмпирическая модель сопротивления учитывает в явном виде толщину и физико-механические свойства ледяного покрова, размерения и характеристики формы корпуса ледокола, скорость хода. Экспериментальные исследования ходкости выполнены в открытом ледовом опытовом бассейне НГТУ с естественным охлаждением с использованием моделей ледоколов, имеющих различную форму корпуса. В ходе эксперимента фиксировались следующие параметры: сопротивление движению модели, скорость установившегося движения модели, средняя толщина намороженного ледяного поля, температура воды и воздуха, плотность льда, плотность воды, коэффициент трения льда о корпус модели судна. Для получения корреляционных коэффициентов полуэмпирическая модель сопротивления была настроена на всю генеральную совокупность экспериментальных данных сразу по пяти моделям ледоколов. Приведены результаты автоматизированных расчетов эмпирических коэффициентов. Произведено сравнение полученных результатов для ледоколов проектов 16, 1105, 1191, 21900.
The icebreaking fleet is the most versatile means of prolonging navigation. Theoretical and experimental studies of ice propulsion play an important role in these processes. A theoretical and experimental method for determining the resistance when ships move in continuous ice is described. The semi-empirical resistance model explicitly takes into account the thickness and physico-mechanical properties of the ice sheet, the dimensions and shape characteristics of the icebreaker hull, and the speed of movement. Experimental studies of ice propulsion were carried out in the open ice experimental pool of the NSTU with natural cooling using models of icebreakers with different hull shapes. The following parameters were recorded during the experiment: the resistance to movement of the model, the speed of steady motion of the model, the average thickness of the frozen ice field, the temperature of water and air, the density of ice, the density of water, the coefficient of friction of ice on the hull of the ship model. The semi-empirical resistance model was tuned to the entire general set of experimental data for five icebreaker models at once to obtain correlation coefficients. The results of automated calculations of empirical coefficients are given. A comparison of the results obtained for icebreakers of projects 16, 1105, 1191, 21900 was made.
A method for improving the quality of current consumption in a wave-proof electric generating complex
Authors: Дарьенков А.Б. , Серебряков А.В. , Трофимов И.М. , Алешин Д.А. , Мурашов А.Д. , Ростовский В.В. 
Published: September 2024

Все больше и больше научных коллективов направляют свой взгляд в сторону энергии морских волн. Несмотря на гигантский потенциал удельной энергии волны из-за множественного преобразования эффективность электрогенерирующих комплексов не велика. Предложенная авторами концепция волновой электростанций выполняется одновременно две функции - волнозащитную, и генерацию стабилизированной электрической энергии. Для повышения энергоэффективности работы электрической части волновой электростанции предлагается использовать безмостовой выпрямитель. С помощью имитационного моделирования была оценена эффективность применения безмостового выпрямителя в сравнении с типовой схемой выпрямителя с функцией стабилизации напряжения. Основным результатом применения безмостового выпрямителя является потребление от генератора активного тока, повторяющего форму входного напряжения, что позволяет повысить электромагнитную совместимость комплекса в целом. Для оценки вероятности безотказной работы были разработаны алгоритмы диагностирования с помощью метода половинного деления с применением критерия Парето в форме скалярного ранжирования. Благодаря разработанным алгоритмам диагностирования появляется возможность оценить вероятность выхода из строя каждого элемента волнозащитного электрогенерирующего комплекса.
More and more scientific collectives are directing their gaze towards the energy of sea waves. Despite the gigantic potential of specific wave energy, due to multiple conversions, the efficiency of power generating complexes is not great. The concept of wave power plants proposed by the authors simultaneously performs two functions - wave protection and generation of stabilized electrical energy. To increase the energy efficiency of the electrical part of the wave power plant, it is proposed to use a bridgeless rectifier. Using simulation, the effectiveness of using a bridgeless rectifier was assessed in comparison with a typical rectifier circuit with a voltage stabilization function. The main result of using a bridgeless rectifier is the consumption of active current from the generator, which follows the shape of the input voltage, which makes it possible to increase the electromagnetic compatibility of the complex as a whole. To assess the probability of failure-free operation, diagnostic algorithms were developed using the bisection method using the Pareto criterion in the form of a scalar ranking. Thanks to the developed diagnostic algorithms, it becomes possible to assess the probability of failure of each element of the wave-protective power generating complex.
Optimization of the structure of the mining fleet of owners of quotas for catching Beryteuthis magister
Authors: Лисиенко С.В. , Иванко Н.С. 
Published: September 2024

В статье предлагается постановка и решение оптимизационной задачи распределения добывающего флота предприятий-судовладельцев, имеющих квоты на вылов командорского кальмара в промысловых зонах Дальневосточного рыбохозяйственного бассейна. В исследовании рассматривались среднетоннажные и малотоннажные промысловые суда, которые используется на промысле командорского кальмара. Цель оптимизации – распределение добывающего флота предприятий-судовладельцев по промысловым зонам, с учетом выданных квот, имеющегося в наличии добывающего флота. Кроме того отдельно выделяется учет промысловой доступности кальмара в каждой рассматриваемой промысловой зоне, что влияет на длительность времени лова, а следовательно и на суммарный вылов в зоне. Для решения поставленной задачи разработана программа на языке программирования Python, в программе предусмотрена база данных с исходными данными. Расчет может быть выполнен как для всех зон Дальневосточного рыбохозяйственного бассейна, в которых ведется промысел кальмара, или для нескольких выбранных зон. В статье приведен пример расчета для двух промысловых зон, с указанием всех исходных данных.
The article proposes the formulation and solution of the optimization problem of the distribution of the mining fleet of shipowner enterprises with quotas for catching commander squid (Beryteuthis magister) in the fishing zones of the Far Eastern fisheries basin. The study considered medium-tonnage and low-tonnage fishing vessels that are used in the commander squid (Beryteuthis magister) fishery. The purpose of optimization is the distribution of the mining fleet of shipowner enterprises by fishing zones, taking into account the issued quotas and the available mining fleet. In addition, the accounting of commercial availability of squid in each considered fishing zone is separately highlighted, which affects the duration of fishing time, and therefore the total catch in the zone. To solve this problem, a program has been developed in the Python programming language, the program provides a database with source data. The calculation can be performed for all zones of the Far Eastern fisheries basin in which squid fishing is conducted, or for several selected zones. The article provides an example of a calculation for two fishing zones, indicating all the initial data.
The computational and experimental study of single-phase swirling flow in steam generator channel using the Reynolds stress model
Authors: Соборнов А.Е. , Дмитриев С.М. , Рязапов Р.Р. 
Published: September 2024

В статье приводятся результаты расчётно-экспериментального исследования процессов гидродинамики и теплообмена в закрученном потоке однофазного теплоносителя. Новизна работы обусловлена уникальностью модели канала парогенератора и расчётной методикой. Условия проведения экспериментальных исследований соответствуют штатным параметрам ЯЭУ. Экспериментальная модель большой протяженности представляет собой вертикальный противоточный теплообменник типа «труба в трубе» с внутритрубным движением нагреваемой среды. В рамках работы рассмотрены 6 различных завихрителей: три с постоянным шагом и три с переменным. В результате эксперимента измерено поле температуры теплообменника при различной комбинации расходов движущихся сред, а также построена гидравлическая характеристика для каждого завихрителя. Расчётные исследования выполнены с применением модели напряжений Рейнольдса – Omega-Based Reynolds Stress Model. Произведено численное моделирование теплогидравлических процессов во всем диапазоне расходов сред. Проведен сравнительный анализ полей скорости и температуры.
The results of a computational and experimental study of hydrodynamics and heat transfer processes in a single-phase swirling flow are presented. The novelty of the work is due to the uniqueness of the steam generator channel model and the calculation method. The conditions of experimental studies correspond to the standard parameters of the nuclear power plant. The long-range experimental model is a vertical countercurrent heat exchanger of the "pipe in a pipe" type with an in-tube movement of the coolant. As part of the work, 6 different swirlers are considered: three with constant pitch and three with variable pitch. As a result of the experiment, the temperature field of the heat exchanger was measured at various combinations of flow rates, and a hydraulic characteristic for each swirl was constructed. Computational studies were performed using the Reynolds stress model – Omega-Based Reynolds Stress Model. Numerical modeling of thermohydraulic processes in the entire range of mass flow rates has been performed. A comparative analysis of the velocity and temperature fields is carried out.
Human retrograde amnesia and memory consolidation
Authors: Ketonis Panayiotis P. , McClelland Thomas Q. , Parra Dani , Radvansky Gabriel A. 
Published: September 2024

Abstract
This paper reports a reassessment of published literature on the question of whether retrograde amnesia data from patients with severe trauma supports the idea that there is ongoing consolidation of long-lasting memories. That is, memory consolidation continues for decades with older memories being increasingly consolidated, and, thus, more protected from forgetting. Our analysis was limited to patients with specific traumas rather than neurodegenerative conditions that can be complicated by the additional presence of significant anterograde amnesia. These constraints were used because trauma patients have a definitive start to their amnesia allowing comparison of their memories before this event, unlike when there is an undefined amnesia onset. Our results revealed that the standard account of retrograde amnesia only fits part of the data, with more than half not conforming to this account. Specifically, damage to different brain areas was associated with different patterns of retrograde amnesia. Those cases where the standard retrograde amnesia account was held tended to involve damage to the hippocampus and temporal lobes, as expected. Future directions to better understand the influence of retrograde amnesia and memory consolidation are suggested.
Clustering Time Series Using Dynamic Time Warping Distance in Provinces in Indonesia Based on Rice Prices
Authors: Rahkmawati Yeni , Annisa Selvi 
Published: September 2024

Rice is a food commodity that is a basic need for Indonesian people. Since the end of 2022, average rice prices in Indonesia have been increasing, breaking the record for the highest price from August to October 2023. The price of rice in each province in Indonesia is different. This can happen because rice center provinces will distribute their rice production to other regions to meet rice needs. The grouping of provinces in Indonesia based on rice prices over time is an interesting thing to research. The analysis method used to group similar objects into groups for time series data is called clustering time series. The distance that can be used to measure the closeness of two-time series is the Dynamic Time Warping (DTW) distance. The clustering analysis used is the single, complete, average, Ward, and median linkage method. The results of the analysis show that time series clustering in provinces in Indonesia based on rice prices is best using median linkage hierarchical clustering. The median linkage method has a cophenetic correlation coefficient value of 0.899064, meaning that clustering using the DTW distance with the median difference is very good. The resulting clusters contained 3 clusters which had different characteristics between the clusters. There are 2 clusters that can be of concern to the government, because there are clusters that have rice prices that have always been high in the last period and there are provincial clusters that have rice prices that are very diverse or can be said to be unstable.
The main forest species encountered in southern and central Benin, West Africa
Authors: Aikpon Gorgias , Koura Kourouma , Ganglo Jean C. 
Published: September 2024

The south of Benin, a country in West Africa, is still home to remnants of dense forests that benefit from a particularly rainy sub-equatorial climate, with annual rainfall of up to 1,200 mm. These forest ecosystems are an integral part of the West African forest block, which stretches from Liberia to Togo. However, despite their richness and ecological importance, these forests are unfortunately subject to strong human pressures, particularly from slash-and-burn agriculture, intensive logging and the growing urbanisation of coastal areas. Preserving these forests is crucial, however, as they are home to remarkable plant and animal biodiversity, with many endemic species. What's more, these forests play an essential role in regulating the local climate, protecting soil and water resources, as well as providing local populations with a vital source of energy wood, non-timber forest products and support for their traditional agricultural practices. Faced with these conservation challenges, identifying and characterising the main tree species found in the forests of southern and central Benin, forest species and their ecology is an essential prerequisite for implementing sustainable management and restoration strategies for these threatened forest ecosystems in southern Benin. This work aims to identify and draw attention to the different forest species, specially tree forest species present in southern and central Benin.
The dataset provides information on forest species found in southern and central Benin, West Africa. This dataset is extremely useful for forestry research, as it focuses mainly on the various forest species of major importance. It can be used as a basis for characterising individuals or populations of species, based on their abundance in relation to anthropogenic pressure and changes in environmental conditions.
These species are characteristic of forests and, above all, are of particular interest both to populations and to managers of protected areas. Field collections were initiated in 2007 as part of natural forest inventory work. The data collected have been completed by various field works that followed this work on forest species in southern Benin. The latest version of the dataset is publicly and freely accessible on the GBIF website at the address https://www.gbif.org/dataset/aff3a10a-a86b-4eff-98e4-d63f92fd6f7e.
It should be noted that the fact that the collection and monitoring were carried out in southern Benin, a region known for its great diversity of species, over a period of 10 years making these data particularly relevant information to study the effects of climate change and human pressure on ecosystems in this area.
Addressing Nursing Students' Anxiety During Simulation Sessions: A Pilot Intervention Study
Authors: Wang Yurou , Sartain Andrea F. 
Published: September 2024

Background:
Although simulation-based education plays a vital role in nursing education, it consistently induces high levels of anxiety among nursing students. This study aimed to implement a mindfulness intervention to alleviate anxiety in nursing students during simulation sessions.

Method:
This randomized controlled trial study included 54 nursing students. Both survey and emotion track system data were collected and analyzed using multivariate analysis of covariance.

Results:

The intervention effectively reduced anxiety among students in the experimental group compared with students in the control group during simulation sessions. The frequency (F[1, 53] = 6.145,
p
= .016), intensity (F[1, 51] = 3.771,
p
= .050), and duration of anxiety felt by students (F[1, 50] = 4.223,
p
= .017) decreased after the intervention. However, no long-term effects of the intervention were identified.

Conclusion:

The implementation of a mindfulness intervention successfully alleviated anxiety among nursing students during simulation.

[
J Nurs Educ
. 2024;63(9):577–583.]
Inclusion of Genetics and Genomics in Baccalaureate Nursing Programs in the United States
Authors: Joffe Isabelle , Karagianes Paulina , Slezinger Francis , Tenenbaum Milly , Jacob Ani , Hobbie Lawrence J. 
Published: September 2024

Background:
Because of the importance of genetics and genomics for health care, efforts to promote inclusion of genetics and genomics in undergraduate nursing programs has increased in the past 20 years. However, the success of these efforts has not been measured recently.

Method:
Information from Commission on Collegiate Nursing Education accredited 4-year baccalaureate nursing programs in the United States was searched, and program administrators were surveyed regarding inclusion of genetics and genomics in program requirements.

Results:
More than half (57%) of 711 programs analyzed included genetics and genomics in their curriculum, with <6% of programs requiring a standalone course. Although 43% of programs did not mention genetics and genomics in their curriculum, some programs that did not specifically identify genetics and genomics in course descriptions may incorporate these topics.

Conclusion:

Despite the growing importance of genetics and genomics in health care, many prelicensure baccalaureate nursing programs include little instruction on these topics.

[
J Nurs Educ
. 2024;63(9):613–618.]
Partnering With Clinicians Supporting Nursing Students' Clinical Placement at a Regional Hospital
Authors: Craswell Alison , Cockroft Gemma , el Haddad May 
Published: September 2024

Background:
Innovative models are required to maximize nursing student placements in environments of shrinking budgets, increasing hospital demands, and casualization and aging of the workforce. This article reports the success of a service-academic partnership in a dedicated education unit.

Method:

This cross-sectional observational study in a regional hospital analyzed survey data using validated tools completed by buddy nurses (
n
= 80) and postplacement evaluation completed by students (
n
= 102) and the nurse leadership team (
n
= 17).

Results:

Postimplementation, nursing student placement days increased, and participants were positive about the partnership. Although most of the nursing students (
n
= 96) reported they were very or extremely satisfied with their placement, they rated student facilitators higher than their buddy nurses.

Conclusion:

Increasing enrollments will not solve the nursing workforce shortage unless student placements of quality and quantity are provided. Partnership in support of clinical staff remains critical to create time to provide quality supervision.

[
J Nurs Educ
. 2024;63(9):619–625.]