bluuebunny/crossref_metadata_2025_split huggingface dataset:
Intellectualization of the transport system of the Northern sea route
Authors: Гурлев И.В. , Макоско А.А. , Малыгин И.Г. , Каминский В.Ю. 
Published: September 2021

В статье рассмотрены некоторые направления создания и развития интеллектуальной транспортной системы Северного морского пути (СМП). Показано значение СМП в рамках комплексного освоения территории Российской Федерации, приведена его структура. В настоящее время СМП функционирует как внутренний транспортный коридор. Одним из недостатков СМП является небольшая глубина морского канала, что требует проведения соответствующих работ или изменения маршрута. Отмечается влияние изменения погодно-климатических условий в Арктике на транспортную систему СМП. Показаны преимущества использования СМП в качестве международного транзитного транспортного коридора по сравнению с южным маршрутом через Суэцкий канал. Перечислены направления развития Северного морского пути как транспортной системы на основе цифрового усовершенствования инфраструктуры, навигационного, энергетического и информационно-телекоммуникационного обеспечения, а также интеллектуализации производственных процессов на базе беспилотного мультимодального транспорта. Утверждается, что внедрение цифровых технологий на СМП превратит его в один самых высокотехнологичных и эффективных транспортных коридоров в мире.
The article considers some directions of creation and development of the intelligent transport system of the Northern Sea Route (NSR). The significance of the NSR in the framework of the integrated development of the territory of the Russian Federation is shown, its structure is given. Currently, the NSR functions as an internal transport corridor. One of the disadvantages of the NSR is the small depth of the sea channel, which will require appropriate work or route changes. The influence of changes in weather and climatic conditions in the Arctic on the transport system of the NSR is noted. The advantages of using the NSR as an international transit transport corridor in comparison with the southern route through the Suez Canal are shown. The directions of the development of the Northern Sea Route as a transport system based on the digital improvement of infrastructure, navigation, energy, information and telecommunications support, as well as the intellectualization of production processes based on unmanned multimodal transport are listed. It is argued that the introduction of digital technologies on the NSR will turn it into one of the most high-tech and efficient transport corridors in the world.
About the fire hazard of transport hydrotunnels
Authors: Таранцев А.А. , Борисов А.H. , Галиев М.С. 
Published: September 2021

В статье рассмотрена достаточно новая проблема, связанная с появлением и развитием перспективной транспортной инфраструктуры – гидротоннелей. Показано, что ввиду большой пожарной нагрузки, которую представляют собой проходящие по гидротоннелю суда (пассажирские, сухогрузы, контейнеровозы. танкеры) возможно возникновение пожаров, угрожающих как самим судам и их экипажам, так и конструкции гидротоннеля – обрушение его свода из-за экстремальных тепловых нагрузок. Проведено компьютерное моделирование с использованием полевой модели пожара, подтвердившее факт быстрого роста температуры и концентрации токсичных продуктов горения, а также «тоннельный эффект» - прохождение высокотемпературного потока газов к одному из торцов тоннеля. Даны предложения по действиям персонала судов в гидротоннеле и пожарных кораблей по тушению пожара и спасению людей. Показана необходимость оборудования некоторых гидротоннелей дренчерными системами пожаротушения. Сделан вывод о необходимости дальнейших исследований в части пожарной безопасности транспортных гидротоннелей и разработке соответствующего нормативного документа.
The article considers a fairly new problem associated with the emergence and development of a promising transport infrastructure – hydrotunnels. It is shown that due to the large fire load, which is represented by vessels passing through the hydrotunnel (passenger, dry cargo, container ships. tankers) there may be fires that threaten both the ships themselves and their crews, and the structure of the hydrotunnel – the collapse of its arch due to extreme thermal loads. A computer simulation was carried out using a field model of a fire, which confirmed the fact of a rapid increase in temperature and concentration of toxic combustion products, as well as the "tunnel effect" - the passage of a high-temperature gas flow to one of the ends of the tunnel. Suggestions are given on the actions of the personnel of vessels in the hydrotunnel and fire ships to extinguish the fire and rescue people. The necessity of equipping some hydrotunnels with drencher fire extinguishing systems is shown. The conclusion is made about the need for further research in terms of fire safety of transport hydraulic tunnels and the development of an appropriate regulatory document.
The formation of a new ecosystem of the fishery industry of Russia in modern conditions
Authors: Кострикова Н.А. , Яфасов А.Я. 
Published: September 2021

В последние годы в России перестал расти объем добычи водных биоресурсов, слабо развиваются частное предпринимательство и процессы цифровой трансформации в РХК. Пандемия COVID-19 ускорила необходимость использования цифрового экосистемного подхода в организации деятельности РХК. Предлагается проводить цифровую трансформацию РХК конгруэнтно с созданием новых технологий глубокой переработки водных биоресурсов и развитием рециклинга. Процесс технологической модернизации РХК необходимо выстраивать с учетом ранжированной системы ценностей: Человек – Общество – Природа – Технологии – Экономика. Он отличается человекоцентричностью создаваемой цифровой экосистемы РХК и способен дать синергетический эффект. Представлен алгоритм жизненного цикла новой продукции в контексте государственно-частного партнерства. Предлагаемый подход позволит повысить производство Hi – Tech продукции с обеспечением устойчивого развития РХК и экономики приморских регионов России.
In recent years, the volume of the extraction of aquatic biological resources in Russia has ceased to grow, private entrepreneurship and digital transformation processes in the fishery industry are underdeveloped. The COVID-19 pandemic has accelerated the need to use a digital ecosystem approach in organizing the activities of the fishery industry. It is proposed to carry out the digital transformation of the fishery industry congruently with the creation of the new technologies for deep processing of aquatic biological resources and the development of recycling. The process of technological modernization of the fishery industry should be built taking into account the ranked system of values: Man - Society - Nature - Technology - Economy. It is distinguished by the human-centricity of the created digital ecosystem of the fishery industry and is able to give a synergistic effect. The algorithm of the lifecycle of new products in the context of public-private partnership is presented. The proposed approach will increase the production of Hi-Tech products with ensuring the sustainable development of the fishery industry and the economy of the coastal regions of Russia.
Study of the relationship between dispersion distortions of impulsive signals and acoustic properties of the shallow sea bottom
Authors: Боран-Кешишьян А.Л. , Лисютин В.А. , Маленко Ж.В. , Ярошенко А.А. 
Published: September 2021

Для установления связи между дисперсионными искажениями сигналов и акустическими характеристиками дна мелкого моря применяется метод свертки сигнала с импульсной характеристикой волновода. Методом нормальных волн вычисляется акустическое поле в широкой полосе частот. Затем осуществляется обратное преобразование Фурье акустического поля и восстанавливается импульсная характеристика волновода. Реплика сигнала далее вычисляется как свертка импульсной характеристики и сигнала. Преимущества такого подхода следующие. Свертка циклична – нет ограничений на длительность сигнала. Может быть использована не только вычисленная, но и экспериментально определенная импульсная характеристика. По усмотрению исследователя поля отдельных мод можно исключать, добавлять шум в частотной либо временной области, имитировать движение источника, воздействие ветрового волнения. Ограничение – условия однородности волновода вдоль трассы. Рассматривается ряд примеров, в которых изучается возможность определения акустических свойств дна, изучаются дисперсионные искажения сигналов, возникающие в волноводе со слоем скачка скорости звука на профиле скорости звука. Изучается изменение дисперсионных искажений в зависимости от частоты сигнала, глубины приемника, расстояния между излучателем и приемником.
To establish a connection between the dispersion distortions of signals and the acoustic properties of the shallow sea bottom, the method of convolution of the signal with the impulse response of the waveguide is used. The method of normal modes calculates the acoustic field in a wide frequency band. Then the inverse Fourier transform of the acoustic field is performed and the impulse response of the waveguide is restored. The signal replica is then calculated as a convolution of the impulse response and the signal. The advantages of this approach are as follows. Convolution is cyclical – there are no restrictions on the duration of the signal. Not only calculated, but also experimentally determined impulse response can be used. At the discretion of the researcher, the fields of individual modes can be excluded, add noise in the frequency or time domain, simulate the movement of the source, the impact of wind waves. Restriction - conditions for uniformity of the waveguide along the distance. A number of examples are considered, in which the possibility of determining the acoustic properties of the bottom is studied, as well as dispersion distortions of signals that occur in a waveguide with a sound velocity jump layer on the sound velocity profile. The variation of dispersion distortions is studied depending on the signal frequency, receiver depth, and distance between the emitter and receiver.
Results of modeling the dependence of the height of flexural-gravity waves in a floating plate with a sealed edge on the inclination of the bottom of the reservoir
Authors: Козин В.М. 
Published: September 2021

На основании проведенных автором экспериментов по разрушению льда амфибийными судами на воздушной подушке (СВП) резонансным методом при их движении в сторону берега, их крупномасштабных моделей в полевых условиях, а также известных случаев разрушения ледяного покрова движущимися в сторону берега транспортными средствами показана возможность существенного увеличения толщины льда, разрушаемого у его береговой кромки. Приведены данные экспериментов, выполненных в опытовом бассейне на моделирующих ледяной покров упругих пленках, подтверждающие эти возможности. В работе представлены результаты моделирования зависимости высоты изгибно-гравитационных волн (ИГВ), возбуждаемых в плавающей пластине движущейся в направлении ее заделанной кромки нагрузкой, от угла наклона дна бассейна. Также приведены рекомендации по использованию наклонности дна для повышения эффективности разрушения ледяного покрова (увеличения толщины разрушаемого льда) путем возбуждения резонансных ИГВ. На основании выполненных экспериментов показано, что приближение к берегу ИГВ, возбуждаемых СВП с последующим их выходом на него, может значительно увеличить толщину разрушаемого льда за счет отрыва от берега его кромки. Отмечена возможность увеличения ледоразрушающей способности ИГВ благодаря последующим проходам судна вдоль нее из-за роста деформаций ослабленного таким образом льда, т.е повышения ледоразрушающей способности СВП.
Based on the experiments conducted by the author on ice destruction by amphibious hovercraft using the resonant method when they move towards the shore, their large-scale models in the field, as well as known cases of ice cover destruction by vehicles moving towards the shore, the possibility of a significant increase in the thickness of ice destroyed at its coastal edge is shown. The data of experiments performed in the experimental pool on elastic films modeling the ice cover are presented, confirming these possibilities. The paper presents the results of modeling the dependence of the height of Flexural-gravitational waves excited in a floating plate by a load moving in the direction of its embedded edge on the angle of inclination of the pool bottom. Recommendations are also given for using the bottom slope to increase the efficiency of ice cover destruction (increasing the thickness of the destroyed ice) by exciting resonant Flexural-gravitational waves. Based on the performed experiments, it is shown that the approach to the shore of Flexural-gravitational waves excited by hovercraft with their subsequent exit to it can significantly increase the thickness of the destroyed ice due to the separation of its edge from the shore. The possibility of increasing laboratree the ability of the Flexural-gravitational waves during the next passages of the ship along it due to the growth of deformations weakened the ice.
Prior episodic learning and the efficacy of retrieval practice
Authors: Gupta Mohan W. , Pan Steven C. , Rickard Timothy C. 
Published: September 2021

AbstractIn three experiments we investigated how the level of study-based, episodic knowledge influences the efficacy of subsequent retrieval practice (testing) as a learning event. Possibilities are that the efficacy of a test, relative to a restudy control, decreases, increases, or is independent of the degree of prior study-based learning. The degree of study-based learning was manipulated by varying the number of item repetitions in the initial study phase between one and eight. Predictions of the dual-memory model of test-enhanced learning for the case of one study-phase repetition were used as a reference. Results support the hypothesis that the advantage of testing over restudy is independent of the degree of prior episodic learning, and they suggest that educators can apply cued-recall testing with the expectation that its efficacy is similar across varying levels of prior content learning. Implications for testing effect theory are discussed.
Resolving the Circumstellar Environment of the Galactic B[e] Supergiant Star MWC 137.II. Nebular Kinematics and Stellar Variability*
Authors: Kraus Michaela , Liimets Tiina , Moiseev Alexei , Sánchez Arias Julieta P. , Nickeler Dieter H. , Cidale Lydia S. , Jones David 
Published: September 2021

Abstract
The Galactic B[e] supergiant MWC 137 is surrounded by a large-scale optical nebula. To shed light on the physical conditions and kinematics of the nebula, we analyze the optical forbidden emission lines [N ii] λ
λ 6548,6583 and [S ii] λ
λ 6716,6731 in long-slit spectra taken with ALFOSC at the Nordic Optical Telescope. The radial velocities display a complex behavior but, in general, the northern nebular features are predominantly approaching while the southern ones are mostly receding. The electron density shows strong variations across the nebula with values spreading from about zero to ∼800 cm−3. Higher densities are found closer to MWC 137 and in regions of intense emission, whereas in regions with high radial velocities the density decreases significantly. We also observe the entire nebula in the two [S ii] lines with the scanning Fabry–Perot interferometer attached to the 6 m telescope of the Special Astrophysical Observatory. These data reveal a new bow-shaped feature at P.A. = 225°–245° and a distance 80″ from MWC 137. A new Hα image has been taken with the Danish 1.54 m telescope on La Silla. No expansion or changes in the nebular morphology appear within 18.1 yr. We derive a mass of

37

−
5

+
9

M

☉

and an age of 4.7 ± 0.8 Myr for MWC 137. Furthermore, we detect a period of 1.93 d in the time series photometry collected with the TESS satellite, which could suggest stellar pulsations. Other, low-frequency variability is seen as well. Whether these signals are caused by internal gravity waves in the early-type star or by variability in the wind and circumstellar matter currently cannot be distinguished.
A Near-infrared Survey of UV-excited Molecular Hydrogen in Photodissociation Regions
Authors: Kaplan Kyle F. , Dinerstein Harriet L. , Kim Hwihyun , Jaffe Daniel T. 
Published: September 2021

Abstract
We present a comparative study of the near-infrared (NIR) H2 line emission from five regions near hot young stars: Sharpless 140, NGC 2023, IC 63, the Horsehead Nebula, and the Orion Bar. This emission originates in photodissociation or photon-dominated regions (PDRs), interfaces between photoionized and molecular gas near hot (O) stars or reflection nebulae illuminated by somewhat cooler (B) stars. In these environments, the dominant excitation mechanism for NIR emission lines originating from excited rotational-vibrational (rovibrational) levels of the ground electronic state is radiative or UV excitation (fluorescence), wherein absorption of far-UV photons pumps H2 molecules into excited electronic states from which they decay into the upper levels of the NIR lines. Our sources span a range of UV radiation fields (G
0 = 102−105) and gas densities (n

H
= 104−106 cm−3), enabling examination of how these properties affect the emergent spectrum. We obtained high-resolution (R ≈ 45,000) spectra spanning 1.45–2.45 μm on the 2.7 m Harlan J. Smith Telescope at McDonald Observatory with the Immersion Grating INfrared Spectrometer (IGRINS), detecting up to over 170 transitions per source from excited vibrational states (v = 1–14). The populations of individual rovibrational levels derived from these data clearly confirm UV excitation. Among the five PDRs in our survey, the Orion Bar shows the greatest deviation of the populations and spectrum from pure UV excitation, while Sharpless 140 shows the least deviation. However, we find that all five PDRs exhibit at least some modification of the level populations relative to their values under pure UV excitation, a result we attribute to collisional effects.
The Stellar Mass in and around Isolated Central Galaxies: Connections to the Total Mass Distribution through Galaxy–Galaxy Lensing in the Hyper Suprime-Cam Survey
Authors: Wang Wenting , Li Xiangchong , Shi Jingjing , Han Jiaxin , Yasuda Naoki , Jing Yipeng , More Surhud , Takada Masahiro , Miyatake Hironao , Nishizawa Atsushi J. 
Published: September 2021

Abstract
Using photometrically selected galaxies from the Hyper Suprime-Cam (HSC) survey, we measure the stellar-mass density profiles for satellite galaxies around isolated central galaxies (ICGs) from SDSS/DR7 at z ∼ 0.1. By stacking HSC images, we also measure the projected stellar-mass density profiles for ICGs and their stellar halos. The total mass distributions are further measured from HSC weak-lensing signals. ICGs dominate within ∼0.15 times the halo virial radius (0.15 R
200). The stellar mass versus total mass fractions drop with the increase in projected distance up to ∼0.15 R
200, beyond which they are less than 1% while staying almost constant. The integrated stellar mass in satellites is proportional to the virial mass of the host halo, M
200, for ICGs more massive than 1010.5
M
⊙, i.e., M
*,sat ∝ M
200, whereas the relation between the stellar mass of ICGs + stellar halos and M
200 is close to

M

*
,
ICG
+
diffuse

∝

M

200

1

/

2

. Below 1010.5
M
⊙, the change in M
200 is much slower with the decrease in M
*,ICG+diffuse. At fixed stellar mass, red ICGs are hosted by more massive dark matter halos and have more satellites. At M
200 ∼ 1012.7
M
⊙, both M
*,sat and the fraction of stellar mass in satellites versus total stellar mass, f
sat, tend to be marginally higher around blue ICGs. f
sat increases with the increase in both M
*,ICG+diffuse and M
200, and scales more linearly with M
200. We provide best-fitting relations to M
200 versus M
*,ICG+diffuse, M
*,sat or M
*,ICG+diffuse + M
*,sat, and to f
sat versus M
200 or M
*,ICG+diffuse, for red and blue ICGs separately.
HydroClim Data Portal: Cyberinfrastructure for providing high-resolution GIS modeled streamflow and water temperature data to researchers
Authors: Wang Xiaojun , Knoft Jason , Ficklin Darren , Rios Nelson , Bart Henry 
Published: September 2021

Freshwater ecosystems play a key role in sustaining aquatic biodiversity. However, human alterations to watersheds and climate change are reducing critical habitat and the viability of populations of many aquatic species. The environmental changes have also had significant adverse impacts on water temperatures and streamflow. The changes in temperature and precipitation forecast over the next century are expected to affect the freshwater ecosystems and their biodiversity to an even greater extent than in the past. The aims of the HydroClim project are to provide openly accessible data on two key measures of stream conditions in the United States (US) and Canada for use in research, to increase public understanding of issues involving water resources, and to provide training opportunities for scientists who will be responsible for the conservation of freshwater biodiversity in the future.
The project has used contemporary air temperature and precipitation data and future climate data from multiple Global Climate Model scenarios to generated high-resolution, spatially explicit, monthly streamflow and water temperature data for all watersheds across the US and Canada from 1950–2099 through multiple Soil and Water Assessment Tool (SWAT) hydrologic models. This presentation describes a cyberinfrastructure we developed for hosting the HydroClim data, consisting of a relational database and a web-based data portal that allows scientists to query and download the data. We have imported almost 1.9 billion HydroClim data records into the system. At the time of this submission, 1.3 billion records of historical data and predicted streamflow and water temperature model data are available in the HydroClim data portal for 26 watersheds in the United States. The HydroClim data are also being integrated with fish occurrence data from Fishnet 2, via the Fishnet 2 API (Application Programming Interface), which provides occurence data records for over 4.1 million species lots representing over 40 million specimens in ichthyological research collections.
Our plan is to extract and merge environmental data from Hydroclim API, with fish occurrences containing geospatial information from the Fishnet 2 API, displaying the integrated data on web-based interactive hydrological maps in different time-series, and providing a tool for visualizing ecosystem diversity. The combined Hydroclim and Fishnet2 data can be used for ecological niche modeling applications, such as predicting the future distribution of threatened and endangered freshwater fish species. I will describe the cyberinfrastructure of HydroClim data portal and some of the ways the data can be used in biodiverisity research in the future.