bluuebunny/crossref_metadata_2025_split huggingface dataset:
Exploring the impact of data-driven learning in extensive reading
Authors: Hadley Gregory , Hadley Hiromi 
Published: November 2021

Abstract
While much of the research into the efficacy of data-driven learning (DDL) has focused on productive skills such as writing, less attention has been on how DDL affects receptive skills, such as reading. This chapter presents a four-year mixed-methods study, which investigates the impact of DDL on the extensive reading (ER) proficiency of second language learners in a Japanese national university. Conducted in three stages and under a wide range of class conditions, this study concludes that explicit forms of DDL are most successful with small groups and one-to-one instruction, where personal feedback and less pressure are key. Implicit forms of DDL tend to work best with larger class sizes, where it results in faster reading speeds and in greater amounts of material read.
Scoledit
Authors: Wolfarth Claire , Ponton Claude , Brissaud Catherine 
Published: November 2021

Abstract
The purpose of Scoledit is to build a computer-aided longitudinal corpus of texts written by pupils between 6 and 11 years as well as associated automatic processing tools. This project seeks to produce linguistic descriptions of pupils’ writings and to facilitate the teaching of spelling and writing. Currently, an increasing number of projects aim to create large primary school corpora of French (Elalouf, 2005; Garcia-Debanc & Bonnemaison, 2014; David & Doquet, 2016). However, these corpora are neither longitudinal nor associated with natural language processing (NLP) tools (Wolfarth, 2017). This chapter discusses some of the automated tools for linguistic analyses developed and the advantages of the Scoledit project in the context of language teaching
The Camel Humps prosodic pattern
Authors: Matalon Nadav 
Published: November 2021

Abstract
This chapter presents an analysis of a common
prosodic pattern in spoken Hebrew. The pattern is characterized by a
repetition of high rise-fall pitch movements, which visualize as
successive “humps” in the pitch curve.1 Based on analysis of naturally occurring conversations,
I show that speakers use this pattern to construct open lists of
reinforcements for a counter-stance they take. In some cases, the use
of the pattern is itself the act of taking a counter-stance, that is,
in such cases the disaffiliation between the stance-takers is only
prosodically cued. Such cases demonstrate that prosodic list patterns
are used not only for the task of enumerating items under one
category, but also as a resource for complex interactional
activities.
The structure of the chapter is as follows. In Section 1, I introduce the
premises underlying this study and describe the data. Section 2 includes a formal
analysis of the pattern, followed by a functional analysis in Section 3. Conclusions are
drawn in Section 4.
Online text mapping
Authors: Sammarco Carmela 
Published: November 2021

Abstract
This is a corpus driven study on verbless
constructions (Cxs[ØVP]) in spoken Italian and French that
have a textual naming function, namely verbless constructions that
speakers use to name what they are going to talk about. This paper
suggests that these constructions are tools that speakers use as
structure’s mapping in the discourse to orient the listener and
themselves and that build meta-discursive and meta-textual ad
hoc categories. These structures are frequent in very
high informative texts (i.e. meetings and conferences) and their
occurrence correlates with the information’s density in texts.
Et cetera, eccetera, etc. The development of a
general extender from Latin to Italian
Authors: Fiorentini Ilaria , Magni Elisabetta 
Published: November 2021

Abstract
This paper discusses the range of functions of
et cetera in Latin, as well as the
multifunctionality and evolution of eccetera in
Italian. Both forms pertain to the category of general extenders, i.e.
markers whose main function is to ‘extend’ otherwise grammatically
complete utterances. We will propose a qualitative analysis based on
data from Latin, Old Italian, and contemporary written and spoken
Italian. In particular, we will discuss the semantic-pragmatic
expansion of et cetera and eccetera,
highlighting how both expressions tend to develop intersubjective and
procedural meanings in addition to their original functions. Moreover,
since the original components of eccetera are by now
blurred in contemporary Italian, we will show how recent developments
allow its use in disjunctive contexts.
Morphopragmatics of rhyming and imitative co-compounds in
Russian
Authors: Alexandrova Anna , Benigni Valentina 
Published: November 2021

Abstract
Coordinative compounding is a phenomenon at the
crossroads between word-formation, syntax and discourse, adopted for
encoding non-lexicalized concepts in a wide range of languages. We
propose a morphopragmatic account of two specific coordinative
compounding strategies in Russian, namely, rhyming and imitative
co-compounds. They exhibit non-compositional semantics, inasmuch as
they perform a generalizing/categorizing function, which, in turn, is
tightly intertwined with a strong pragmatic evaluative component,
involving irony and downgrading of the referent. Furthermore,
different means of categorization tend to cluster in discourse, thus
resulting in pervasive overcoding of the respective ad
hoc concepts. Since categorization is a result of an
online process of meaning negotiation between speakers, we have to do
with low-frequency single instances of a frequent phenomenon.
Characterization of irradiation effect on 5251 Al-alloy using rietveld x-ray diffraction analysis
Authors: Sayed Zoda , Abdel-Rahman M , Abdel-Rahman M A , Badawi Emad A 
Published: November 2021

Abstract
This work aims to study irradiation doses (0, 100, 200, 400, 600 and 1000 kGy of Co60
γ-source doses) effect on 5251 Al-alloy samples using XRD analysis. The main structures of the x-ray diffraction patterns are the same, a considerable difference in the peak intensities is observed due to the grain growth associated with increasing of irradiation doses. The intensity ratio of higher reflections declares that nearly 600 kGy irradiation dose is the preferred orientation or threshold point. Microstructure characterization has been studied using x-ray Diffraction Line Profile (XDLP) analysis. Minimum crystallite size of about 0.106 μm is measured for non-irradiated sample, maximum value is observed at 600 kGy. Micro-strain decreases exponentially with increasing irradiation dose, in addition the cell parameter seems to be constant. The dislocation and defect densities reveal the same behavior as the micro-strain. The defect and dislocation density decrease exponentially with increasing of irradiation doses with maximum values of about 1.10 × 1019 cm−3 and 3.15 × 1010 cm−2 respectively obtained for non-irradiation. The variation of the stored dislocation energy due to irradiation doses reveal maximum stored dislocation energy of about 334.95 kJ m−3 for non-irradiated sample, then it is approximately kept constant with increasing of irradiation dose up to 1000 kGy.
Terahertz graphene modulator based on hybrid plasmonic waveguide
Authors: Huang Jinwen , Song Zhengyong 
Published: November 2021

Abstract
As a key component of on-chip interconnection, optical modulator with large modulation depth and tiny footprint has always been studied. Profiting by high carrier mobility and flexible adjustability of graphene, numerous graphene modulators at optical communication band are proposed to overcome inherent flaws of traditional semiconductor waveguide modulators. Here, a terahertz waveguide modulator combing noble metal and graphene is presented. When Fermi level changes from 0 eV to 1 eV, intensity distribution of electric field becomes dispersed. Interaction area of graphene and wave increases, which results in larger propagation loss. On the premise of the existence of the allowed mode, the size of metal and the thickness of dielectric should be small. Besides, modulation capability of this device can also be improved by multilayer graphene with relaxation time of 0.1 ps. After optimizing structure parameters, the designed graphene waveguide modulator obtains modulation depth of 6.1 dB μm−1 at the frequency of 5 THz, and keeps effective mode area below 10−5. With the increase of frequency, modulation depth decreases. Modulation depth of 1.5 dB μm−1 is achieved at 10 THz, but the corresponding effective mode area remains in an ideal range. Because the allowed mode is confined in a tiny room, cross-sectional area of device is less than 4 μm2.
Charged BTZ-type solutions in Eddington-inspired Born-Infeld gravity
Authors: Guerrero Merce , Mora-Pérez Gerardo , Olmo Gonzalo J. , Orazi Emanuele , Rubiera-Garcia Diego 
Published: November 2021

Abstract
We construct an axially symmetric solution of Eddington-inspired Born-Infeld gravity coupled to an electromagnetic field in 2+1 dimensions including a (negative) cosmological constant term. This is achieved by using a recently developed mapping procedure that allows to generate solutions in certain families of metric-affine gravity theories starting from a known seed solution of General Relativity, which in the present case corresponds to the electrically charged Banados-Teitelboim-Zanelli (BTZ) solution. We discuss the main features of the new configurations, including the modifications to the ergospheres and horizons, the emergence of wormhole structures, and the consequences for the regularity (or not) of these space-times via geodesic completeness.
Operational features of battery-powered electric vehicles in Russia and methods of assessing a state of health of traction batteries
Authors: Biksaleev R , Klimov A , Malikov R , Karpukhin K 
Published: November 2021

Abstract
Electric vehicle manufacturers pay particular attention to climatic conditions in the Russian Federation, seeing that chemical reaction rates usually decrease when the environment temperature drops. The analysis of ambient temperature data in the region where electric vehicles will most likely be used aims to select extreme temperatures for calculating powers of a thermostat control system for traction batteries. An electric vehicle simulation model to calculate the power of the thermostat control system for traction batteries is described. An empirical model to assess a state of health of traction batteries is selected. This simulation model adequately reflects thermal processes in a traction battery and can be used for further research.
Charging balance management for automotive battery in low-voltage power network under low temperature conditions and at deep discharge of the automotive battery in the car
Authors: Debelov V V , Malyshev A N , Chechranova O A , Dzhodzhua O A , Kozlovskiy V N 
Published: November 2021

Abstract
The paper presents the results of theoretical analysis and mathematical modeling and implementation of algorithms for controlling the charging balance of battery in a low-voltage power network at low temperatures and at deep discharge of the battery as part of an intelligent vehicle control system with a combined power unit. The target of the research is to develop methods to prevent the critical discharge of the battery, methods of charging the battery and methods for control of the current state of the automotive battery. Experiments were performed, experimental data and graphs were obtained. The results of the research allow performing adjustment of the rechargeable battery charge balance management model and contribute to improving the energy balance of the grid, increasing the efficiency and service life of batteries.
Noise of small-scale contra rotating rotors
Authors: Boychuk I P , Grinek A V 
Published: November 2021

Abstract
This article presents the results of an experimental study of the noise characteristics of small-scale coaxial counter-rotating rotors. The tests were carried out in an anechoic soundproof chamber for F7/A7 counter-rotating rotors with 11 and 9 blades on the front and rear rotors, respectively. The intensity of noise emission by rotors was compared with the constancy of the thrust of the power units. Acoustic studies have shown the presence of tonal and broadband noise components at low rotation speeds. In addition to the usual noise components, tonal components were also observed for the rotor blade running combinations. The observed noise levels at these frequencies are equal, and in some directions are significantly higher than the noise levels at the frequencies of the blades of the first and second rows. In experiments, it was found that, while maintaining the equality of the rods, with an increase in the diameter, the noise levels at the rotors decrease due to a decrease in peripheral speeds. A decrease in the noise levels of rotors with an increase in the number of blades was established due to a decrease in aerodynamic loads on the blades and peripheral speeds. An important parameter here is the filling factor of the space swept by the blades. With an increase in this coefficient, the rotation noise decreases, but the vortex noise increases significantly.
Analysis of causes of failure of the electric centrifugal pump elements by the methods of automated diagnostics
Authors: Suleimanov Rustem I , Ya Khabibullin Marat , Suleimanov Renard I 
Published: November 2021

Abstract
The article discusses the issues of assessing the technical condition of electric centrifugal pumps (ECP) by the methods of automated diagnostics. The factors influencing the ECP and causes of failures of the electric centrifugal pump (ECP) and the submersible electric motor (SEM) are analyzed. The results of ECP failure identifiaton using the measuring systems are presented. Recommendations on the operation of electric centrifugal pumps are provided.
Optimizing the power quality by reducing harmonic distortion in the power supply network for isolated territories
Authors: Suslov K , Solonina N , Solonina Z , Akhmetshin A 
Published: November 2021

Abstract
New technologies of electric power generation, such as generation based on renewable energy sources, distributed generation, make extensive use of modern power electronics. All these non-linear elements generate harmonic components in the supply voltage. This leads to a deterioration in the quality of the supplied energy. In this regard, improving the quality of supplied energy is an urgent task. The article proposes a method of continuous distributed monitoring of the quality of electrical energy in the isolated power systems. This method is based on the use of the PMU infrastructure to continuously obtain information on instantaneous values of currents and voltages. It is proposed to use a smart meter proposed earlier by the authors as a primary measuring instrument for monitoring the level and direction of harmonics in various sections of the power system. This procedure is carried out in the current time mode, and thus there is a continuous adjustment of the power supply system to a mode close to optimal in terms of the content of harmonic components (harmonics) in the supply voltage at the selected points of connection.
Experimental studies of single rotors noise of small scale
Authors: Boychuk IP , Grinek AV 
Published: November 2021

Abstract
The work experimentally investigated the characteristics of the noise of large-scale isolated rotors on small-scale models. The experimental rotor model was based on the F7 / A7 design developed by General Electric. The small diameter rotors were 3D printed and powered by brushless DC motors. The studies were implemented at a speed of up to 8500 rpm. Far-field acoustic measurements were performed in a noise-damped anechoic chamber. The noise characteristics of the brushless motors used in the experiments were investigated separately. For brushless motors, the main component is mechanical noise at the speeds of the motor shaft and its harmonics. For a uniaxial electric motor, the mechanical noise at the shaft speed increases with an increase in the rotational speed, while the noise at its higher harmonics decreases. The study of the coaxial electric motor showed an increase in mechanical noise at the higher harmonics of rotation. In experiments with insulated rotors, the tonal and broadband noise content was recorded. The study showed that with an increase in the rotational speed of a single rotor, the noise level rises from 65 to 80 dB. In this case, the maximum sound pressure shifts towards higher frequencies.
Evaluating significance of relation between a material electroerosion resistance and electroerosive machining pulse energy
Authors: Boyko A F , Blinova T A , Syusyuka E N 
Published: November 2021

Abstract
The paper presents results of research into dependence of electroerosion resistance on the energy of discharge impulses during electroerosive machining. A new criterion is proposed for evaluation of electroerosion resistance of materials. A direct dependence has been determined experimentally between the electroerosion resistance and the energy of discharge impulses. This relation is weak and close to linear. A mathematical model has been developed for this dependence. Scope of application is defined for the research results.
Mathematical model of the evolution of operating parametersof dielectrics in the marine power supply system when forcing certain factors
Authors: Litskevich O N , Litskevich A P , Litskevich S A , Pisarenko G P 
Published: November 2021

Abstract
The paper addresses the issue of development of a mathematical model for the evolution of operating parameters of dielectrics in the marine power supply system when forcing certain factors. The paper addresses a comprehensive problem in comparison with the classical problem of the wear theory. With regard to the given details, factors that cause a decrease in the operating time were introduced to determine the operating time before electrical wear of the power supply unit. The study employs methods of the fuzzy (uncertain) set theory. The uncertainty of quantities in the fuzzy set theory is set by the membership function, which determines the degree of its fuzziness. In accordance with fuzzy set methods, a membership function is constructed to estimate fuzziness of the function of a shrinking time resource of operating time before wear. In Mathcad, the authors have developed a computational module for estimating the fuzzy time (due to inaccuracy of the initial data) subtracted from the total operating time before electrical wear of the berthing power supply unit. To improve the reliability of power supply to seaports and reduce accidents, new technical and organizational measures are being developed. Therefore, the task is formulated to ensure serviceability of the power supply system with due regard to its interactions with various subsystems.
Implementation algorithm and mathematical model of contactless power transmission for powering an electric vehicle
Authors: Bryanskikh T B , Malozyomov B V 
Published: November 2021

Abstract
The work is devoted to methods for increasing the energy efficiency of photovoltaic modules. Various algorithms for determining the maximum power points and their application to obtain the maximum possible efficiency when using solar panels are considered. The principles of the operation of algorithms are described, their advantages and disadvantages are indicated. Their comparison was carried out according to the main significant parameters. The most suitable algorithm for application at a weather station has been selected.
Gas fuel combustion and related problems
Authors: Bashkatov VA , Khudyakov SA , Ignatenko AV 
Published: November 2021

Abstract
Combustion, as it is well known, is based on chemical reactions. If we look at a clear scientific definition of the term “combustion”, then combustion will be a process of rapid high-temperature oxidation, combining physical and chemical phenomena. Combustion consists of a large number of elementary redox processes leading to the redistribution of valence electrons between atoms of interacting substances.Modern theories of combustion relate flame spreading in gases to chemical chain reactions[1]. Nowadays, in a view of the wide spread of gas, understanding of a ship fuel and analysis of gas related problems of combustion are more and more critical. Gas itself is not able to ignite in a combustion chamber as a conventional fuel just because of compression and temperature rising. It requires a strong and efficient source of fire. The article is focused on analyzing igniting, flame spreading and detonation in a combustion chamber. The detonation condition was assessed in case of using gas as ships fuel.
Heat exchange processes in automotive internal combustion engines
Authors: Ushnitsky I N 
Published: November 2021

Abstract
Combustion chamber diameters, an advance angle of fuel injection, injection rate, minimum ratio of air excess, methods of forcing, and oil cooling affect the heat exchange processes of engines. The method of thermal calculation of the working cycle makes it possible to consider the change in the physical properties of the working fluid, the effect of heat transfer between the working fluid, and the environment during the implementation of the working cycle. The main parameters of the gas at characteristic points of the indicator diagram are determined as a result of performing a thermal calculation, which makes it possible to assess the cycle perfection degree. Some of the main parameters of the working fluid (pressure, temperature) and the nature of their change can serve as input data when calculating engine parts for strength. The amount of mechanical work obtained in the cycle and the value of gas volume at the expansion process end demonstrates not only efficiency, but also the dimensions and weight of the engine, namely, indicators that affect the overall layout of machines.
Calculation studies of the influence of exhaust gas recirculation on the characteristics of the natural gas-fueled diesel engine
Authors: Libkind I I , Gonturev A V 
Published: November 2021

Abstract
When converting diesel engines to run on natural gas on the gas-diesel cycle, additional problems arise associated with the high thermal stress of the exhaust valves and valve seats at high loads and engine speeds. There is also an increase in NOx emissions due to higher combustion temperatures of natural gas. One of the ways to improve the economic and environmental performance of engines operating on a gas-diesel cycle with a lean air-fuel mixture is to optimize the combustion of the air-fuel mixture by using an exhaust gas recirculation system (EGR). The principle of operation of this system is as follows: exhaust gas entering the intake manifold and further into the combustion chamber reduces the oxygen concentration in the air-fuel mixture, which leads to a dilution effect and, accordingly, to a decrease in combustion temperature and a decrease in NOx content. In order to study the influence of EGR on the dual-fuel gas and diesel engine parameters in the AVL Boost software package, a computer model of the existing 6ChN13/15 engine was developed. A low-pressure EGR system with an exhaust gas cooler was simulated on this engine. Values of NOx emissions, brake specific fuel consumption (BSFC) and brake efficiency have been obtained at different recirculation rate by calculation method. These values allow to estimate the feasibility of using a cooled EGR in a natural gas-fueled diesel engine.