bluuebunny/crossref_metadata_2025_split huggingface dataset:
Arterial Stiffness and Left Ventricular Diastolic Function in Endurance Athletes
Authors: Hashimoto Yuto , Okamoto Takanobu 
Published: November 2020

AbstractThe present study investigated the relationship between arterial stiffness and left ventricular diastolic function in endurance-trained athletes. Sixteen young male endurance-trained athletes and nine sedentary of similar age men participated in this study. Resting measures in carotid-femoral pulse wave velocity were obtained to assess arterial stiffness. Left ventricular diastolic function was assessed using 2-dimensional echocardiography. The athletes tended to have lower arterial stiffness than the controls (P=0.071). Transmitral A-waves in the athletes were significantly lower (P=0.018) than the controls, and left ventricular mass (P=0.034), transmitral E-wave/A-wave (P=0.005) and peak early diastolic mitral annular velocity at the septal site (P=0.005) in the athletes were significantly greater than the controls. A significant correlation was found between arterial stiffness and left ventricular diastolic function (E-wave: r=− 0.682, P=0.003, E-wave/A-wave: r=− 0.712, P=0.002, peak early diastolic mitral annular velocity at the septal site: r=− 0.557, P=0.025) in the athletes, whereas no correlation was found in controls. These results suggest that lower arterial stiffness is associated with higher left ventricular diastolic function in endurance-trained athletes.
Synthesis of Spiro Oxazolidinedione Analogues Based on Tandem Multicyclizations of 1,3-Dimethylalloxan and Enaminones in Water
Authors: Teimouri Mohammad Bagher , Yavari Issa , Abbasi Tina , Bikas Rahman 
Published: November 2020

AbstractA tandem double-annulation reaction of 1,3-dimethylalloxan with enaminones, generated in situ from alkyl amines and alkyl but-2-ynoates or pent-3-yn-2-ones to give functionalized oxazolidinedione spiro analogues is described. Three of the four carbonyl groups of alloxan have been engaged through a tandem Michael addition, aldol-type condensation, and double intramolecular annulation sequence.
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-Mediated Tandem Oxidative-Coupling/Annulation of o-Hydroxyaryl Enaminones with Cycloheptatriene
Authors: Cheng Dongping , Xu Xiaoliang , Pu Yueqi , Wang Mingliang , Shen Yinqiang , Shen Jing , Yan Jizhong 
Published: November 2020

AbstractA DDQ-mediated tandem reaction of easily available o-hydroxy­aryl enaminones and cycloheptatriene is disclosed. It provides an effective and convenient method for the synthesis of 3-(cycloheptatrienyl)-substituted chromones in moderate to excellent yields with good functional group tolerance; this reaction involves an oxidative coupling and intramolecular annulation pathway.
The Arabic of Dune
Authors: Ryding Karin Christina 
Published: November 2020

Abstract
In the fictional universe of Dune, Frank Herbert’s classic 1965 space opera, the author draws attention to the landscape and the inhabitants of the desert planet by conferring on them Arabic or Arabic-sounding names. Although the Arabic-language borrowings are a salient component of his narrative style, they have not been studied from the point of view of linguistics or from a stylistics approach that analyzes Herbert’s strategic deployment of terms and how they are embedded in his imagined desert world, Arrakis. This essay links Herbert’s discursive strategies with the landscape that he created along the lines of the Sapir-Whorf Hypothesis. His investigation of foreign language lexicons unfolded a rich tapestry of terms which he employed to bring the languages of our time into the worlds of Dune, and to connect the reader with the potent interplay of language and place.
(Re)mapping “authentic” London
Authors: Smith Jennifer 
Published: November 2020

Abstract
Busse and Warnke’s (2015) Urban Linguistic research paradigm is a seminal and precise answer to recent calls for interdisciplinary investigations of urban space/place that include semiotic and linguistic aspects. The methodological, technical and technological consequences of implementing interdisciplinary urban research, however, are manifold and highly complex. This exploratory case study is an attempt to showcase qualitative analyses of how ‘place-making practices’ (cf. Busse and Warnke 2015) manifest in two urban data types. Ideally, such small-scale investigations need to be complemented and contextualised by further quantitative methods and big data sets, such as the heiURBAN corpus by Busse (cf. e.g., Busse 2020). This chapter combines literary analysis of Iain Sinclair’s London Overground (2015) with descriptions of the semiotic landscape of Shoreditch, one of the most prominent gentrifying/gentrified neighbourhoods in London’s East End. It is embedded into my doctoral research of Shoreditch’s semiotic landscape and the analysis hints at how urban places are situated in discourses of urbanity, gentrification, change, authenticity, and commodification. The scope of this article remains small and exploratory but provides insight into some of the aforementioned methodological issues as well as an outlook of what further investigations may focus on.
Naming as styling
Authors: Tan Peter K.W. 
Published: November 2020

Abstract
This chapter examines the notion of authenticity as applied to building names in Singapore. The city itself is seen as a multi-authored text, and constitutes a kind of narrative within which building names form an important element. An initial definition of authenticity is developed based on ideas of names being true to the entity’s identity or destiny; choice in naming is seen as style which signals meaningful elements linked to identity. This, however, is problematised in the context of multiple and changing identities; postmodernism also challenges the notion of fixed or non-negotiable identities. Modernist and postmodernist approaches to the notion are therefore contrasted, and particular features of building names are discussed as to whether these can be seen as touchstones of inauthenticity: the languages represented, their grammaticality, orthographic manipulation and name coinages. The conclusion is that the notion of authenticity might be a less useful concept in the postmodernist world.
When bilinguals outperform monolinguals
Authors: Miller Lauren 
Published: November 2020

Abstract
This study explores cross-linguistic influence among different populations of Spanish-English bilinguals by
studying their interpretation, production and acceptance of definite articles in subject position. The three bilingual groups
included Heritage Speakers of Spanish living in the United States, L1 English/L2 Spanish speakers, and L1 Spanish/L2 English
speakers. Two groups of monolingual speakers (Spanish and English) were also tested for comparison. Results show that instructed
bilinguals outperformed monolinguals on the acceptability judgment task but that monolinguals performed better on the
interpretation tasks. Additionally, the type of linguistic experience each group had was found to predict variable performance
across acceptance, production, and interpretation tasks. These results support multi-competence models of bilingualism, which
argue that language performance is linked to language experience, suggesting that variable amounts of exposure rather than age of
onset of acquisition may be the crucial difference between first language and second language speakers.
Linking or delinking of ideas?
Authors: Navarro Gil Noelia , Pugès Helena Roquet 
Published: November 2020

AbstractThis paper explores the use of adversative Linking Adverbials (LAs) in the academic writing of advanced English Foreign Language (EFL) learners with different linguistic backgrounds. The learner corpus used in this study consists of 50 argumentative essays which are contrasted with a native corpus: the American university students’ corpus (LOCNESS).Liu’s (2008)comprehensive list of adversative LAs has been used for the analysis. Findings reveal that both non-native (NNS) and native speakers of English (NS) use similar types of adversative LAs, but NNS place them regularly in sentence- and sometimes in paragraph-initial position, which often results in punctuation issues and misuse. A total of 9 LAs were found to be overused (e.g.,nevertheless) and underused (e.g.,actually) by NNS. The analysis performed according to L1 has yielded unexpected results in terms of preference, frequency, and placement of adversative LAs. The so-called ‘teaching effect’ is considered one of the main factors influencing the learners’ choices.
Evaluation of Metglas/polyvinylidene fluoride magnetoelectric bilayer composites for flexible in-plane resonant magnetic sensors
Authors: Zhang Hao , Mu Xuejian , Yang Shuya , Zhang Chenyan , Xu Jie , Wang Xia , Li Qiang , Cao Derang , Li Shandong 
Published: November 2020

Abstract
Flexible magnetic sensors are attracting more and more attention because of their application in wearable devices. In this paper, Metglas/polyvinylidene fluoride (PVDF) bilayer composite with good flexibility was fabricated to evaluate its applicability as a flexible in-plane magnetic sensor. The magnetoelectric (ME) coupling characteristics and sensing performance of the sample were investigated under different test conditions, including different AC and DC magnetic field, and changing the direction of the magnetic field and the bending degree of the sample. The sample shows a large ME coefficient with a value of 176.41 V cm−1 Oe. The sensitivity, linearity and deviation of the sample are 892.96 mV Oe−1, 0.99965 and ±2% for the AC magnetic field, and 157.6 mV Oe−1, 0.99444 and ±5% for the DC magnetic field, respectively, and it shows excellent stability over repetitions. Moreover, the sample was gradually rotated anticlockwise in the magnetic fields. The output voltage of the sample varies with the rotation angle and has a good symmetry in plane, which is described well by a sine function. In addition, the clamping effect of the sample was studied. Even when bent, the sample still maintains an excellent and stable performance. The sensitivity and linearity of the sample with a bent angle of 23.5° are 254.37 mV Oe−1 and 0.99975 for the AC magnetic field, and 28.07 mV Oe−1 and 0.99309 for the DC magnetic field, respectively. The deviation of measurements is small for both the AC and DC magnetic sensors. In summary, the present study shows that the Metglas/PVDF bilayer composite has a good sensing performance and is suitable for = flexible in-plane resonant magnetic sensors.
Anharmonic effects on the dynamics of solid aluminium from ab initio simulations
Authors: Adams Donat J , Wang Lin , Steinle-Neumann Gerd , Passerone Daniele , Churakov Sergey V 
Published: November 2020

Abstract
Two approaches to simulations of phonon properties of solids beyond the harmonic approximation, the self-consistent ab initio lattice dynamics (SCAILD) and decoupled anharmonic mode approximation (DAMA) are critically benchmarked against each other and molecular dynamics simulations using a density-functional-theory description of electronic states, and compared to experimental data for fcc aluminium. The temperature-dependence of phonon dispersion and the phonon density-of-states, heat capacity, and the mean atomic displacement for fcc aluminium are examined with these approaches at ambient pressure. A comparison of results obtained with the harmonic approximation to the ones predicted by SCAILD and DAMA reveal a negligible anharmonic contribution to phonon frequencies, a small, but significant influence on heat capacity, and a strong effect on atomic mean-square displacement. The phase space accessed with SCAILD and DAMA is reduced relative to molecular and harmonic lattice dynamics simulations. In particular the DAMA results are in good agreement with displacement amplitudes determined by the Debye–Waller factor in x-ray diffraction experiments.
Flux surface identification by spatio-temporal coupling with partial mutual information analysis of electron cyclotron emission data
Authors: Guerrero Arnaiz J F , Dinklage A , Pompe B , Geiger J , Hirsch M , Höfel U , Marushchenko N , Turkin Y , Wolf R C 
Published: November 2020

Abstract
Fluctuations of electron cyclotron emission (ECE) signals are analyzed for differently heated Wendelstein 7-X plasmas. The fluctuations appear to travel predominantly on flux surfaces and are used as ‘tracers’ in multivariate time series. Different statistical techniques are assessed to reveal the coupling and information entropy-based coupling analysis are conducted. All these techniques provide evidence that the fluctuation analysis allows one to check the consistency of magneto-hydrodynamic (MHD) equilibrium calculations. Expanding the suite of techniques applied in fusion data analysis, partial mutual information (PMI) analysis is introduced. PMI generalizes traditional partial correlation (Frenzel and Pompe Phys. Rev. Lett.
99 204101) and also Schreiber’s transfer entropy (Schreiber 2000 Phys. Rev. Lett.
85 461). The main additional capability of PMI is to allow one to discount for specific spurious data. Since PMI analysis allows one to study the effect of common drivers, the influence of the electron cyclotron resonance heating on the mutual dependencies of simultaneous ECE measurements was assessed. Additionally, MHD mode activity was found to be coupled in a limited volume in the plasma core for different plasmas. The study reveals an experimental test for equilibrium calculations and ECE radiation transport.
On possibility of strong anomalous damping of an ordinary pump wave in the electron cyclotron resonance heating experiments due to the low-power-threshold parametric decay instability
Authors: Gusakov E Z , Popov A Yu 
Published: November 2020

Abstract
We analyze the low power-threshold parametric decay instability of an ordinary wave in the first electron cyclotron harmonic frequency range, which leads to the excitation of a localized upper hybrid (UH) wave and a lower hybrid wave. We investigate its transition into the saturation mode due to both the pump wave depletion and the cascade of successive secondary decays. A set of equations describing this nonlinear frequency down-conversion of the primary UH wave is derived and then solved both analytically and numerically under the conditions typical of the off-axis O1-mode electron cyclotron resonance heating experiments in the FTU tokamak. The possibility of a strong anomalous absorption of the pump power in the case of even-step cascade of secondary decays is discovered.
New states of matter with fine-tuned interactions: quantum droplets and dipolar supersolids
Authors: Böttcher Fabian , Schmidt Jan-Niklas , Hertkorn Jens , Ng Kevin S H , Graham Sean D , Guo Mingyang , Langen Tim , Pfau Tilman 
Published: November 2020

Abstract
Quantum fluctuations can stabilize Bose–Einstein condensates (BEC) against the mean-field collapse. Stabilization of the condensate has been observed in quantum degenerate Bose–Bose mixtures and dipolar BECs. The fine-tuning of the interatomic interactions can lead to the emergence of two new states of matter: liquid-like self-bound quantum droplets and supersolid crystals formed from these droplets. We review the properties of these exotic states of matter and summarize the experimental progress made using dipolar quantum gases and Bose–Bose mixtures. We conclude with an outline of important open questions that could be addressed in the future.
New spin-resolved thermal radiation laws for nonreciprocal bianisotropic media
Authors: Khandekar Chinmay , Khosravi Farhad , Li Zhou , Jacob Zubin 
Published: November 2020

Abstract
A chiral absorber of light can emit spin-polarized (circularly polarized) thermal radiation based on Kirchhoff’s law which equates spin-resolved emissivity with spin-resolved absorptivity for reciprocal media at thermal equilibrium. No such law is known for nonreciprocal media. In this work, we discover three spin-resolved Kirchhoff’s laws of thermal radiation applicable for both reciprocal and nonreciprocal planar media. In particular, these laws are applicable to multi-layered or composite slabs of generic bianisotropic material classes which include (uniaxial or biaxial) birefringent crystals, (gyrotropic) Weyl semimetals, magnetized semiconductors, plasmas, ferromagnets and ferrites, (magnetoelectric) topological insulators, metamaterials and multiferroic media. We also propose an experiment to verify these laws using a single system of doped indium antimonide (InSb) thin film in an external magnetic field. Furthermore, we reveal a surprising result that the planar slabs of all these material classes can emit partially circularly polarized thermal light without requiring any surface patterning, and identify planar configurations which can experience nontrivial thermal optomechanical forces and torques upon thermal emission into the external environment at lower temperature (nonequilibrium). Our work also provides a new fundamental insight of detailed balance of angular momentum (in addition to energy) of equilibrium thermal radiation, and paves the way for practical functionalities based on thermal radiation using nonreciprocal bianisotropic materials.
Hybrid power system for effective utilization of natural energy resources
Authors: Gemechu B D , Orlov M E 
Published: November 2020

Abstract
An evaluation on the technoeconomic assessment of a hybrid solar-geothermal power plant is performed taking into account the geothermal and solar energy resources available at Tendaho -1 (Dubti) geothermal site in Ethiopia. A hybrid power plant in which a single-flash geothermal power plant integrated with a parabolic trough concentrated solar power system is used as a base for the technoeconomic analysis. The technoeconomic performance of the hybrid system was compared with a power generation system composed of stand-alone solar and geothermal power plants. Results showed that the that by combining the solar and geothermal energies, in hybrid power system it is possible to generate 10.4% more electricity than it would be generated by two-stand-alone power plants. Moreover, the economic figure of merit values is found to be 3.42 and 2.62 for the hybrid power plant with and without TES respectively. This mean that the specific cost of utilizing the solar energy in the hybrid power system is lower by 70.5% and 61.5% than the specific cost of utilizing the solar energy in stand-alone solar power plant.
Analysis of fuel economy of small energy complex schemes based on gas turbine and wind-driven power plants
Authors: Yu Ignatov V , Vdovenko I A , Nikolaev Yu E 
Published: November 2020

Abstract
Here the energy complex is considered, representing a combination of gas turbine and wind power plants. The combination of plants that operate on different types of fuel (renewable and organic) reduces fuel consumption in a gas turbine installation. Four schemes are described and a comparative analysis of the fuel economy of each scheme is compared with the separate production of electric energy at a conventional thermal power station. For this, a mathematical model for calculating the energy characteristics was developed. The analysis revealed that the energy complex, including a gas turbine without regeneration, a current converter, and a peak boiler, has the greatest cost-effectiveness.
Economic assessment of the use of double-acting resuperheating of water vapor at the PGU-420 Cherepovets state district power station
Authors: Kudinov A A , Ziganshina S K , Khusainov K R 
Published: November 2020

Abstract
To increase the efficiency of a three-circuit combined-cycle plant, it is proposed to perform double resuperheating of water vapor in the high pressure loop (intermediate superheater ISH-1) and in the cooler part of the heat recovery boiler (intermediate superheater ISH-2). It was found by calculation that the implementation of the double reheated steam at high pressure and the tail of the WHRB increases the electrical efficiency of PGU-420 by 0.92 % compared to the option of a single resuperheat (from 60.45 to 61.37 %). The capacity of PGU-420 increases by 3.7 % (from 422.94 to 438.61 MWt). The specific reference fuel consumption is reduced by 1.5 % (from 203.47 to 200.42 g/(kWfh)). The steam dryness factor increases by 6.03 % (from 93.2 to 99.23 %). The steam turbine efficiency increases by 1.15 % (from 36.26 to 37.41 %), and steam turbine power increases by 11.61 % (from 134.94 to 150.61 MWt). The economic effect of the implementation of the second water vapor resuperheating in monetary terms is 48.0 million rubles per year when the cost of fuel equivalent is 3700 rubles/t. f e. and at the operating time of 7500 h/year.
Possibilities of enhancing the efficiency of the Angara cascade of hydroelectric power plants
Authors: Osipchuk E N , Nikitin V M , Abasov N V 
Published: November 2020

Abstract
The paper focuses on the reservoir regulation issues of the Angara cascade of hydroelectric power plants (HPPs). The current requirements of water users and the restrictions on the operating conditions of individual hydrosystems are analyzed. The inconsistency of the current legislation on water resources management in the Baikal and Angara basins is noted. Satisfying the requirements of water users and water consumers under normal and close-to-normal water availability, the management system cannot meet the standard needs and restrictions during the low and high water periods. One of the main reasons for the decrease in the reliability and stability of the water and energy systems in dry and wet years is a significant decrease in the regulation capabilities of the Irkutsk and Bratsk reservoirs versus design indices. The study involves an analysis of the operation of the Angara cascade of HPPs and the efficiency and reliability of the water management system of the Angara basin over the past 30 years. The optimal operating conditions of the cascade were modeled factoring in the current requirements of water users and socio-economic constraints for various hydrological conditions based on a 120-year statistical series of observations. Measures are proposed to enhance the effectiveness of managing the water resources of the Angara cascade reservoirs. The system of models developed by the authors was used to assess the effectiveness of the proposed measures. The assessments of the stability of the Angara water management system and the possibilities of increasing the probability of meeting the water users requirements are presented. We propose amending the current legislation to significantly boost the energy efficiency of the Angara cascade of hydropower plants, without violating the regulatory compliance of non-energy participants in the water management system of the Angara basin.
Evaluation of capital investments in energy equipment of a power plant by a power function
Authors: Shchinnikov P A , Frantseva A A , Sadkin I S 
Published: November 2020

Abstract
The paper proposes the use of a power function for evaluating capital investments in the main and auxiliary equipment of a power plant as a universal method for solving a wide range of applied and research problems. This approach allows assessing investments, based on the technical specification of the power plant such as parameters of working fluid, the climatic zone of operation, the type of equipment, type of fuel, etc.
The heat exchange research in the heat recovery unit with finned heat pipes
Authors: Hudaliev Yu M , Shishkin N D 
Published: November 2020

Abstract
The experiments were performed to research the heat exchange of the tube bundle in the heat recovery unit with finned body tubes. The empirical dependences for a finned-tube bundle are obtained. The results are in good agreement with the analytical solution, the discrepancy between the results is within 10%. The analytical model of the finned heat tube has been created, which will be tested experimentally in the future. The results obtained can be used in the design of HRUFHP.