bluuebunny/crossref_metadata_2025_split huggingface dataset:
Isotope dependence of the type I ELMy H-mode pedestal in JET-ILW hydrogen and deuterium plasmas
Authors: Horvath L. , Maggi C.F. , Chankin A. , Saarelma S. , Field A.R. , Aleiferis S. , Belonohy E. , Boboc A. , Corrigan G. , Delabie E.G. , Flanagan J. , Frassinetti L. , Giroud C. , Harting D. , Keeling D. , King D. , Maslov M. , Matthews G.F. , Menmuir S. , Silburn S.A. , Simpson J. , Sips A.C.C. , Weisen H. , Gibson K.J. , JET Contributors  
Published: January 2021

Abstract
The pedestal structure, edge transport and linear MHD stability have been analyzed in a series of JET with the ITER-like wall hydrogen (H) and deuterium (D) type I ELMy H-mode plasmas. The pedestal pressure is typically higher in D than in H at the same input power and gas rate, with the difference mainly due to lower density in H than in D (Maggi et al (JET Contributors) 2018 Plasma Phys. Control. Fusion
60 014045). A power balance analysis of the pedestal has shown that higher inter-ELM separatrix loss power is required in H than in D to maintain a similar pedestal top pressure. This is qualitatively consistent with a set of interpretative EDGE2D-EIRENE simulations for H and D plasmas, showing that higher edge particle and heat transport coefficients are needed in H than in D to match the experimental profiles. It has also been concluded that the difference in neutral penetration between H and D leads only to minor changes in the upstream density profiles and with trends opposite to experimental observations. This implies that neutral penetration has a minor role in setting the difference between H and D pedestals, but higher ELM and/or inter-ELM transport are likely to be the main players. The interpretative EDGE2D-EIRENE simulations, with simultaneous upstream and outer divertor target profile constraints, have indicated higher separatrix electron temperature in H than in D for a pair of discharges at low fueling gas rate and similar stored energy (which required higher input power in H than in D at the same gas rate). The isotope dependence of linear MHD pedestal stability has been found to be small, but if a higher separatrix temperature is considered in H than in D, this could lead to destabilization of peeling-ballooning modes and shrinking of the stability boundary, qualitatively consistent with the reduced pedestal confinement in H.
Technologies for automation creation of an ontology of urbanonyms in the aspect of historical changes (on the example of Almaty)
Authors: Barakhnin Vladimir , Mansurova Madina , Dossanov Bekzhan , Kyrgyzbayeva Marzhan 
Published: January 2021

Abstract
When creating geoinformation systems of a city scale, relation this or that information from Internet, there comes the task of creation an ontology of urbanonyms taking into account their historical changes. The account of historical changes is necessary, for example, to process messages about urban event from blogs: since more and more representatives of the middle and older generations are becoming active Internet users, the massages often contain the former names of urbanonyms. Let us note that it is the accounting of historical changes that is required to solve this problem that determines the need to create not a thesaurus, which is sufficient, as shown in [1], to take into account geographical names commonly used (at least in natural science articles) in their actual from, but an ontology. Taking into account the specifics of the task of creating an ontology of Almaty, in should be bilingual: in the Kazakh and Russian languages.
Parallel news clustering and topic modeling approaches
Authors: Shomanov A S , Mansurova M E 
Published: January 2021

Abstract
At the current age there is an urgent need in developing massively scalable and efficient tools to Big Data processing. Even the smallest companies nowadays inevitably require more and more resources for data processing routines that could enhance decision making and reliably predict and simulate different scenarios. In the current paper we present our combined work on different massively scalable approaches for the task of clustering and topic modeling of the dataset, collected by crawling Kazakhstan news websites. In particular, we propose Apache Spark parallel solutions to news clustering and topic modeling problems and, additionally, we describe results of implementing document clustering using developed partitioned global address space Mapreduce system. In our work we describe our experience in solving these problems and investigate the efficiency and scalability of the proposed solutions.
Improvement of metrological measurements of bridge crossings at waterworks when studying non-destructive testing methods
Authors: Bandurin M A , Bandurina I P , Yurchenko I F 
Published: January 2021

Abstract
The article considers the main parameters of applying the modern methods of metrological measurements of bridge crossings on water channels during research with non-destructive testing methods. Instrumental surveys of water supply facilities in Russia showed that in some cases their effectiveness, operational quality and reliability are insufficient, which is associated with violations of normal water supply systems functioning. In modern conditions, with limited public resources allocated for the reconstruction of water facilities, problems of optimizing the requirements for metrological support of the developed non-destructive testing measuring instruments and the unification of observation technologies are of particular importance. The most common are defects of an internal nature, leading to the disruption of waterworks normal functioning. We can conclude that violations of the butt joints of prefabricated elements, breaking and breaching of walls in various zones, cracks, sliding and subsidence of elements relative to each other lead to disruption of the normal operation of bridge crossings. This raises problems such as the loss of scarce irrigation water, rising groundwater levels, waterlogging and salinization of irrigated lands. The solution to these problems should be based on the mandatory consideration of reliability requirements in design, construction and operation. The purpose of research with non-destructive testing instruments was to detect possible defects in concrete bridge crossings and determine the condition of reinforcing bars. These field studies were carried out using the OKO-2 GPR and the electronic concrete strength measurer IPS-MG4.01. Comparison of the vertical displacement profiles of bridge crossing bearing components through the waterworks horizontally along and across the bearing elements revealed insignificant internal changes. A metrological support system for research by non-destructive methods for monitoring bridge crossings at waterworks is necessary to achieve unity and the required accuracy, completeness, timeliness and efficiency of measurements.
Combined hydroacoustic research of Lake Baikal
Authors: Gubin N A , Grigorev K A , Poletaev A S , Chensky A G 
Published: January 2021

Abstract
The article outlines the main approaches to studying the bottom topography of Lake Baikal and interpretation of bathymetric data. Measurement equipment and experimental data processing algorithms are described. A measuring complex is based on using the Kongsberg EM710S multibeam echosounder which allows one to take a detailed digital elevation model of the bottom. The paper demonstrates experimental results obtained during a series of expeditions to the Baikal in 2015 – 2019. Currently an area of about 12117 km2 (∼38%) of Lake Baikal bottom has been explored. Examples of a digital model of the Baikal bottom are also presented. The paper demonstrates 3D models of detected water columns showing intense of a gas bubbles emanation near the mouth of Selenga river, acoustic images of the Baikal Gigaton Volume Detector (Baikal-GVD), and a bathymetric map of Academician Ridge that was previously examined with the Mir 1 and Mir 2 in July 2009.
Thermophysical properties control during transportation of the liquefied hydrocarbon mixtures by means of REFPROP software package
Authors: Zakirova G S , Krapivsky E I 
Published: January 2021

Abstract
The authors have presented an argument for the possibility of REFPROP software package application for thermophysical properties control of the liquefied hydrocarbon mixtures depending on the composition including design and measured data of phase states of the hydrocarbon mixtures. The studies were carried out by the example of the Chayandinskiy oil and gas condensate field. The presented results of the phase state of mixtures of an oil and gas condensate field using the example of the Chayandinskiy field allow us to predict the behavior of liquefied hydrocarbons at low temperatures, as well as determine the parameters for further transportation in a single-phase liquid state through low-temperature pipelines. Also the task of thermophysical properties control during transportation of the liquefied hydrocarbon mixtures has been analysed. The composition changing of methane and light hydrocarbon mixture allows one to enlarge the mixture density greatly and to change its other properties at acceptable temperatures and pressures. In the article it is shown that the mixture usage is energetically more efficient than the liquefied gas.
Research of influence of failures on the productivity of the technological module in the structure of mechanical-assembly production
Authors: Zamoryonov M V , Kopp V Ya , Rapatskiy Yu L , Zamoryonova D V , Lypka V M 
Published: January 2021

Abstract
The effect of various failures on the real productivity of the process module in the structure of mechanical-assembly production is investigated. A semi-Markov mathematical model is proposed, which allowsone to investigate the productivity of a hierarchically organized technological system taking into account its stochasticity and various failures. The model also allows you to explore the processes of testing and operation of finished products. This is proposed as an example of how to simulate an exploitation process of the item of machine-building. The proposed model allows one to take into account the influence of technological inheritance. Initial data for simulation are obtained by processing the results of production experiments.
The determination of requirements for metrological parameters of geotechnical monitoring systems based on the bifurcation approach
Authors: Dorofeev N V , Grecheneva A V , Pankina E S 
Published: January 2021

Abstract
The article is devoted to substantiating the possibility of applying the bifurcation approach to determine the requirements for the metrological characteristics of the measuring part of geotechnical monitoring systems. It is noted that during the operation of the constructions, the change of physicomechanical properties is in the “soil base-foundation-structure” system. It is caused by seasonal, climatic factors and the change in the industrial environment. Prospects of using the bifurcation approach to assessing the stability of constructions under the influence of exogenous factors are noted. The nonlinear model of the deformation of the construction is described using an example of the rod with one degree of freedom, and the bifurcation diagram of its stability is constructed. It is noted that at the development stage of the construction the application of the bifurcation approach allows one to carry out the modelling and to determine bifurcation points, requirements for the sensitivity and accuracy of measuring instruments. It is proved that the probability of occurrence of errors of the 1st and 2nd kind is much lower on the basis of the proposed approach to assessing stability. The possibility of estimating the permissible error of measuring instruments is proved based on data from bifurcation diagrams.
Method of accelerated industrial testing of hydroabrasive wear of polymer coatings of steel pipes
Authors: Kuskildin R B , Vatlina A M 
Published: January 2021

Abstract
The article is devoted to the discussion of the problem of choosing a protective coating for the inner walls of the slurry pipeline of mining enterprises. For the correct choice among the many polymer coatings, it is necessary to test various coatings for water-jet wear. Standardized test methods are not entirely suitable for assessing the durability of coatings in a specific production environment, they do not take into account the nature of the slurry flow, temperature, etc. Solid inclusions of a different particle size and chemical composition are often used in ready-made and published studies, which makes them irrelevant for mining specialists. Often, for a comparative assessment of the wear resistance of various coatings, enterprises conduct their own industrial tests for hydroabrasive wear, in which they recreate the same granulometric composition of the pulp and its concentration. However, they come with a significant investment of time and energy. The article proposes to use a method of accelerated wear testing based on a comparison of the wear of a straight section of a pipeline and a shaped one in the form of a rotary insert at an angle of 90°.
STUDY ON DAMAGE CONSTITUTIVE MODEL OF RECYCLED AGGREGATE CONCRETE IN CODE FOR DESIGN OF CONCRETE STRUCTURES AND DEVELOPMENT IN ABAQUS
Authors: Wei Huang , Tao Yang , Yan Chen , Pei Ge , Lang Zhou 
Published: January 2021

Abstract
Based on the damage constitutive of ordinary concrete in code for Design of Concrete Structures and considering the similarity of mechanical properties between recycled aggregate concrete and ordinary concrete, a uniaxial damage constitutive of recycled concrete was proposed. At the same time, the above model was programmed as a subroutine by FORTRAN language, and the subroutine was embedded into finite element analysis software ABAQUS to simulate and analyze the uniaxial compression mechanical properties of recycled concrete. The results of finite element simulation and test are compared from the aspects of stress-strain curve and damage evolution curve. The results show that the proposed elastic-plastic damage constitutive model can effectively represent the mechanical properties of recycled aggregate concrete under uniaxial compression at different substitution rates.
Facile fabrication of a red AIE luminogen with simple structure and bright emissions for cell imaging
Authors: Ding Guanyu , Wen Lili , Su Zhongmin , Shan Guogang 
Published: January 2021

Abstract
Fluorescence imaging in red region is of great interest in both practical applicantion and fundamental research. However, the complicated synthetic approaches and low emission efficiency of the fluorescence materials are still implement their bilolgical applications. Herein, a facile synthesis method for a red luminogen with aggregation-induced emission (AIE) is reported. The AIE probe possesses simple structure and high red brightness, favoring its applications toward in vitro and vivo imaging. This study offers an ideal architecture for the construction of red AIEgens with a simple structure.
First-principles calculation on thermodynamic properties of ZnO1-x
S
x
alloys with concidering lattice vibrations
Authors: Luo Minghai 
Published: January 2021

Abstract
Thermodynamic properties of zinc-blende (ZB) and wurtzite (WZ) ZnO1-x
S
x
has been studied with the first-principles methods. The critical temperature for separation is 1981 K for the ZB structures and 1563 K for the WZ structures with the inclusion of lattice vibrations which leads to a large reduction with 20.7 % and 16.7 % for the ZB and WZ structures, respectively. And with the analysis of the phase diagram, The lower critical temperature and the more symmetric phase diagram of WZ structure indicate it has better thermodynamic stability, which is in agreement with experiments.
Fault diagnosis method for power system of civil aircraft Assembly site
Authors: Ying Wu 
Published: January 2021

Abstract
During the process of producing civil aircraft(On the Aircraft Test Procedure), Whether the electric power system fault can be quickly, accurately and properly diagnosed and closed will directly affect the production schedule and even delay delivery of the aircraft. This paper introduces the diagnosis requirements and methods of power system failure in production field, based on the practical experience, a troubleshooting model is proposed, and has certain guiding function for engineering management staff and liaison engineers.
Nucleic acid-based rapid methods for the detection of foodborne pathogens
Authors: Wang Puyao 
Published: January 2021

Abstract
Food safety is critical to people’s health and even life. However, food safety incidents always emerge unexpectedly. This paper is divided into two parts. First, we introduced the common foodborne pathogens causing food pollution. After that, we reviewed nucleic acid-based rapid methods such as conventional PCR, NASBA, LAMP, RPA, and Microarray. Finally, existed problems and future improvement measures are proposed in order to make food detection more convenient and efficient in the future.
Affinity materials for Phosphorylated and Glycosylated Proteins/Peptides enrichment
Authors: Li Xinquan 
Published: January 2021

AbstractTwo typical types of protein post-translational modifications (PTM), protein/peptides phosphorylation and glycosylation play important roles in numerous biochemical processes including signal transduction, cell division, protein secretion and phagocytic vesicles trafficking. Mass spectrometry (MS) is one of the most widely used tools for PTM analysis. Although mass spectrometry is one of the most powerful analysis tool, it is always interfered by impurities and almost impossible to analyze phosphorylated and glycosylated proteins/peptides directly from complicated bio-sample because of low abundance of target proteins/peptides and interference of non-target substances. Thus, enrichment of phosphorylated and glycosylated proteins/peptides is an essential procedure before MS analysis to ensure the effectiveness of MS detection. In this review, recent progress in phosphorylated and glycosylated proteins/peptides enrichment strategies is summarized.
Novel polyrotaxane cross-linkers as a versatile platform for slide-ring silicone
Authors: Tran Jakob-Anhtu , Madsen Jeppe , Skov Anne Ladegaard 
Published: January 2021

Abstract
Slide-ring elastomers have garnered a lot of interest for their potential use in dielectric elastomer actuators due to their intrinsically soft nature and high elasticity. However, the use of sliding cross-linkers has been constrained by their low miscibility with commonly used elastomer precursors and the specialized curing chemistries that are necessary for incorporating them into networks. Here, we have presented a method to produce vinyl functional polyrotaxane cross-linkers that are compatible with polysiloxanes and can be processed by industrially scalable methods. The sliding silicone films that were fabricated with these novel cross-linkers were highly extensible (>350%) and did not exhibit strain hardening even at high elongation. The composite films also retained the favorable dielectric properties of silicone elastomers such as the characteristic low dielectric loss. The modified polyrotaxanes present a robust platform for producing a new class of sliding silicone elastomers with well-defined networks structures.
Polydopamine–Ag composite surface guides HBMSCs adhesion and proliferation
Authors: Bian Yifeng , Wang HaoRan , Xu Jiamin , Wang Zhuo , Du Xin , Wang Yuli , Du Yifei 
Published: January 2021

Abstract
Human bone marrow mesenchymal stem cells (HBMSCs) are regarded as an important resource in the field of maxillofacial bone regeneration because of their favorable properties when compared with other stem cells. Hence, finding suitable materials that could extend the application of HBMSCs has become an emerging medical topic and socioeconomic problem. In this work, polydopamine (PDA)–Ag surface was fabricated by PDA assisted photoreduction method, and the obtained PDA–Ag composite surface significantly promoted HBMSCs adhesion and proliferation. This effect is highly related to the amount of Ag nanoparticles (Ag NPs) present on the PDA surface. The behavior of HBMSCs on PDA–Ag surface could be spatially manipulated by controlling the distribution of Ag NPs on PDA surface (by controlling UV light). The general adhesion property allows the PDA–Ag surface to be fabricated on various substrates, making it a simple, general and controllable method for the fabrication of bioactive surface for HBMSCs.
Is wetter better? Exploring agriculturally-relevant rainfall characteristics over four decades in the Sahel
Authors: Porkka Miina , Wang-Erlandsson Lan , Destouni Georgia , Ekman Annica M L , Rockström Johan , Gordon Line J 
Published: January 2021

Abstract
The semi-arid Sahel is a global hotspot for poverty and malnutrition. Rainfed agriculture is the main source of food and income, making the well-being of rural population highly sensitive to rainfall variability. Studies have reported an upward trend in annual precipitation in the Sahel since the drought of the 1970s and early ‘80s, yet farmers have questioned improvements in conditions for agriculture, suggesting that intraseasonal dynamics play a crucial role. Using high-resolution daily precipitation data spanning 1981–2017 and focusing on agriculturally-relevant areas of the Sahel, we re-examined the extent of rainfall increase and investigated whether the increases have been accompanied by changes in two aspects of intraseasonal variability that have relevance for agriculture: rainy season duration and occurrence of prolonged dry spells during vulnerable crop growth stages. We found that annual rainfall increased across 56% of the region, but remained largely the same elsewhere. Rainy season duration increased almost exclusively in areas with upward trends in annual precipitation (23% of them). Association between annual rain and dry spell occurrence was less clear: increasing and decreasing frequencies of false starts (dry spells after first rains) and post-floral dry spells (towards the end of the season) were found to almost equal extent both in areas with positive and those with no significant trend in annual precipitation. Overall, improvements in at least two of the three intraseasonal variables (and no declines in any) were found in 10% of the region, while over a half of the area experienced declines in at least one intraseasonal variable, or no improvement in any. We conclude that rainfall conditions for agriculture have improved overall only in scattered areas across the Sahel since the 1980s, and increased annual rainfall is only weakly, if at all, associated with changes in the agriculturally-relevant intraseasonal rainfall characteristics.