bluuebunny/crossref_metadata_2025_split huggingface dataset:
Paratextelemente der Postkarte
Authors: Greinert Cordula , Martin Ariane , Nottscheid Mirko 
Published: November 2020

Abstract
The article examines the main paratextual elements of the postcard. The authors hold that these are not of only secondary importance to understanding this particular medium, but that they constitute it as such. Therefore, paratextual elements must be considered accordingly in an edition. Drawing on examples from the current project Frank Wedekind’s correspondence – digital edition, three aspects are focussed on: (1) the intermedial relations of text(s) and visual paratext(s) on picture postcards, (2) the meaning of specific postal paratexts such as postmark, stamp, or address and (3) the phenomenon of collective communication practices on group postcards. The authors conclude that constitutive paratextual elements of the postcard are better presented as an integral part of the edited text instead of being placed in the critical apparatus.
Investigating the origins of Peter Wessel Zapffe’s notion of tragedy in Aristotle’sPoetics: the case ofmimesis
Authors: Proszewska Agnieszka Maria 
Published: November 2020

AbstractThe aim of this paper is to present the philosophical figure of a Norwegian philosopher and writer, creator of biosophy, Peter Wessel Zapffe (1899–1990), and to investigate the origins of his notion of tragedy (tragic experience) which he introduces in his magnum opusOm det tragiske(1941). I attempt to do so by searching its roots in antique theory of tragedy introduced by Aristotle, especially on the pages ofPoetics, to which Zapffe himself often refers to. A study of how Zapffe “read” and understood Aristotle’sPoetics, a classical piece for the study of tragedy and tragic experience, seems essential for establishing the roots and foundations of his own vision of tragedy and its functions, finally shifting from the purely literary sphere to the biosophical level of human existence. In this paper I will focus mainly on the notion and art ofmimesis, laying the basis for further detailed studies of Zapffe’s biosophical analysis of the subject.
Boundaries of the Stranger
Authors: Hjortshøj Søren Blak 
Published: November 2020

AbstractIn recent cosmopolitan work, scholars such as Julia Kristeva, Zygmunt Bauman, Jacques Derrida, and Ulrich Beck have represented the stranger as a universal ideal for our global age and Georg Simmel’s stranger in theExkurs über den Fremdenhas been emphasized as a model for this ideal. While these uses can be justified by generalized passages in Simmel’s essay, they still omit the problem of European Jewish historical exemplarity. Thus, in the decades before Simmel’s essay, this stranger type was already a well-developed figure related to the so-called Jewish question. Georg Brandes and Henrik Pontoppidan used the Jewish stranger to evaluate the societal changes of the fin-de-siècle period and questions of progress vs. decay. Yet, their work limited the stranger to a specific type of Jewishness not including other marginal existences. Hence, reading Simmel with Brandes and Pontoppidan outlines the boundaries of this stranger type as it raises questions regarding recent cosmopolitan uses of Simmel’s stranger.
Hytte-humor – om sanitetsbind og begjær
Authors: Rees Ellen 
Published: November 2020

AbstractThis article considers two comedy sketches that poke fun at cabin culture, a key praxis in contemporary Norway. The sketches are examples of what philosopher Simon Critchley calls «comedy of recognition», reflecting rather than challenging common experiences and beliefs. Focusing on the attitudes held by men and women toward cabins, the article examines how in particular masculinity is experienced and performed in this setting. The article concludes that cabins express complex feelings connected to personal, gender and national identities, and that they are therefore an apt vehicle for comedy about what it means to be Norwegian today.
Fabrication of flexible SiO2 nanofibrous yarn via a conjugate electrospinning process
Authors: Dai Zhang , Yan Fangfang , Qin Mei , Yan Xu 
Published: November 2020

Abstract
Nowadays, different kinds of polymers, including ceramics, are electrospun into fibrous materials with different structures by electrospinning. Generally, the as-spun ceramic fibers are randomly oriented membranes and brittle without flexibility. Here, we report the fabrication of flexible SiO2 electrospun yarns using poly(vinyl alcohol) (PVA) as a template through a conjugate electrospinning process and calcination. It was found that the calcined as-spun fibers and yarns are obviously thinned with PVA component removal. Fourier transform infrared spectroscopy and energy-dispersive spectroscopy examinations suggested that the obtained yarn after calcination was SiO2 yarn. The SiO2 yarn showed good flexibility without cracking after 180° bending. The flexible ceramic yarn may have potential application in functional textiles.
Assessment of academic performance of licensed athletes
Authors: Aycan Zehra , Akgül Sinem , Gençay Selçuk , Kanbur Nuray , Derman Orhan 
Published: November 2020

Abstract

Objectives
Physical activity and sports can be used to reduce stress and anxiety by increasing aerobic capacity and muscle endurance, gain positive behavioral changes and improve their self-discipline, use time well, adopt positive lifestyle such as regular eating and sleeping, which will result in an increase in school success. There are no comprehensive study that examines the academic performance of licensed student athletes and the factors influencing their success rates. The aim of this study was to evaluate the academic performance and related factors in licensed athletes.

Methods
One hundred eleven licensed athletes at junior high school level were enrolled. Participants filled out questionnaires specifically designed to assess for factors affecting academic performance, where personal and familial factors as well as school performance was taken into consideration. Their academic success rates were evaluated out of mean grade points before as well as after professional sports activities. Academic fields that were graded were, namely, mathematics, life sciences, language, and grammar studies as well as social sciences. Fifty one of participants lived in Ankara (Group 1) and the other 60 lived in Kahramanmaraş (Group 2). The effects of sport and other factors that may affect school success in all groups and between the groups were evaluated before and after sports.

Results
The age of the athletes were 14.1 ± 2.3 years, 49.5% were male. The grades of athletes before they started competing in professional sports were 80.4 ± 10.6 for mathematics, 80.5 ± 12.5 for sciences, 82.7 ± 9.5 for language studies, and 83.6 ± 9.3 for social sciences. Following a mean period of 4.3 ± 3.1 years of professional sports, the grades of athletes were, with the same order for respective discipline were, 81.6 ± 10.9, 82.4 ± 11.9, 84.3 ± 9.4, and 85.5 ± 8.5. Following sports activities, academic performance in life sciences, language, and grammar studies as well as social sciences showed a significant improvement where grades for mathematics did not show any significant change (p=0.054). The most important factor that improves school performance is the financial status of the family. In Group 1 demonstrated grade improvements following sports activities only in social sciences, whereas Group 2 athletes showed such an improvement for all the disciplines (p<0.05).

Conclusions
Licensed athletes’ school success during the junior high school period showed a significant increase after sports in this study. The most important factors that affected the academic performance were the socioeconomic status of the family.
Influence of magnets magnetization direction on the performance of high-speed permanent magnet synchronous starter-generator for micro-gas turbine
Authors: Zhao Haiyang , Zou Xutian , Qiu Hongbo , Ding Yiwei 
Published: November 2020

Abstract
High-speed surface-mounted permanent magnet synchronous machine is often used in micro gas turbine generation system due to its high rotor strength and high efficiency. The electrical machine in this kind of generation system needs to integrate two functions of starter and generator. Therefore, its comprehensive performance, including starting performance and generating performance, has become a comprehensive standard to measure machine performance. In this paper, a 40 kW, 20,000 r/min high-speed machine is taken as an example, the influence of magnets magnetization direction on the machine comprehensive performance is studied. The machine models with different magnets magnetization directions are established by using finite element method and the correctness of the models is verified by comparing the experimental data with the finite element calculation data. On this basis, the influence of different magnetization directions on the performance of the machine, such as generation loss, torque ripple, output voltage, start-up time and maximum starting ability, is analyzed. Furthermore, based on the Fourier decomposition of air gap flux density and the decoupling analysis of starting torque, the influence mechanism of magnetization direction on the performance of the machine is revealed. The presented results provide a reference for the selection of a suitable magnetization direction for high-speed surface-mounted permanent magnet machines.
Frequency regulation of a weakly connected microgrid using the fuzzy-PID controller
Authors: Nachidi Meriem 
Published: November 2020

Abstract
Microgrid system stability is a major source of concern due to the rapid increase in load demand and a high level of renewable energy penetration. During the grid- connected mode, the microgrid power quality is mainly affected by the level of connection strength with the host grid. Thus, this paper aims to investigate the impact of the implemented control strategy in the microgrid, on frequency response when its level of connection strength is weak, that is, the frequency and voltage are not dominantly controlled by the grid. A control scheme based on a fuzzy logic-based self-tuning PID controller (fuzzy-PID) is used to maintain the frequency within the acceptable range. Simulations illustrate that the frequency dynamic response of the microgrid guarantees a good performance using the fuzzy-PID controller despite a large drop in grid inertia and the presence of disturbances whereas the classical PID controller cannot maintain the frequency within the acceptable range.
Mathematical model of high-temperature tube-shaped pasta drying in a conveyer belt drier
Authors: Ostrikov Alexander N. , Ospanov Abdymanap A. , Shevtsov Alexander А. , Muslimov Nurzhan Zh. , Timurbekova Aigul K. , Jumabekova Gulnara B. 
Published: November 2020

AbstractThe drying procedure is a key to producing pasta of intended quality and with a specific price tag. However, the existing models are mainly to describe the drying process in a steady state. A mathematical model of tube-shaped pasta drying in a conveyor belt dryer with a stepwise heating supply allows determining the curve of temperature and moisture gradients for a tube-shaped pasta unit. It also helps select the best settings to minimize the heat-power costs while maintaining the good quality of a dried product. The given model describes the drying process in a true-to-life form and ensures the convergence of calculations to observations (deviation: 12.5%). The model was utilized to design a transient drying protocol for conveyor belt dryers with a stepwise heating supply. The proposed dryer has high service reliability and produces uniformly dried high-quality product.
Norm inequalities on variable exponent vanishing Morrey type spaces for the rough singular type integral operators
Authors: Gürbüz Ferit , Ding Shenghu , Han Huili , Long Pinhong 
Published: November 2020

Abstract
In this paper, applying the properties of variable exponent analysis and rough kernel, we study the mapping properties of rough singular integral operators. Then, we show the boundedness of rough Calderón–Zygmund type singular integral operator, rough Hardy–Littlewood maximal operator, as well as the corresponding commutators in variable exponent vanishing generalized Morrey spaces on bounded sets. In fact, the results above are generalizations of some known results on an operator basis.
Complexity bounds on Semaev’s naive index calculus method for ECDLP
Authors: Yokoyama Kazuhiro , Yasuda Masaya , Takahashi Yasushi , Kogure Jun 
Published: November 2020

AbstractSince Semaev introduced summation polynomials in 2004, a number of studies have been devoted to improving the index calculus method for solving the elliptic curve discrete logarithm problem (ECDLP) with better complexity than generic methods such as Pollard’s rho method and the baby-step and giant-step method (BSGS). In this paper, we provide a deep analysis of Gröbner basis computation for solving polynomial systems appearing in the point decomposition problem (PDP) in Semaev’s naive index calculus method. Our analysis relies on linear algebra under simple statistical assumptions on summation polynomials. We show that the ideal derived from PDP has a special structure and Gröbner basis computation for the ideal is regarded as an extension of the extended Euclidean algorithm. This enables us to obtain a lower bound on the cost of Gröbner basis computation. With the lower bound, we prove that the naive index calculus method cannot be more efficient than generic methods.
2 × 20 Gbit/s OFDM-based FSO transmission system for HAP-to-ground links incorporating mode division multiplexing with enhanced detection
Authors: M Praveen , B Vasudevan , R Ransom 
Published: November 2020

Abstract
In this work, the integration of free-space optics (FSO) technology for implementing long-haul high-altitude platform (HAP)-to-ground transmission system is proposed. Mode division multiplexing (MDM) and orthogonal frequency division multiplexing (OFDM) are incorporated for carrying high-speed signals without interference. The impact of increasing input power, divergence angle, antenna diameter, and attenuation on the system performance is further investigated. In addition, the performance of the MDM-OFDM-HAP-to-ground FSO transmission system is improved by using a square root module at the receiver for link reach enhancement. The results exhibit a reliable transportation of 40 Gbps information over 20 km FSO distance with good quality of the received signal.
Cascadability analysis of WDM recirculating loop buffer-based switch in optical data networks
Authors: Shukla Vaibhav , Patel Prabhat Kumar , Choubey Dilip Kumar , Kumar Santosh 
Published: November 2020

Abstract
In recent years the development of cloud computing, big data, cell phone application increases day by day and this will increase the work load on the server centers. Once the network traffic increases the power consumption also increases. In recent past, for reducing this power consumption arrayed waveguide grating (AWG) based optical packet switches are proposed. In these switches the physical and network layer analysis has been presented in isolated switch. In the core network to achieve low packet loss probability an effective buffering technique is required into the design of switch. In this paper a recirculating loop buffer based switch is presented, in this switch design for sharing the recirculating buffer, WDM technology is used by the packets. The main advantage of recirculating buffer is that it allows packet priority routing and by using this technique longer duration buffering of packet is achieved. This feature provides the quality of service in optical networks. In this paper, switch is deployed in the network and the performance of switch is measured when multiple switches are cascaded in the network simultaneously. The power analysis of switch is also performed for isolated and cascaded switches. For fixing the size of the switch into the network the concept of graph theory and random graph model is used.
Implementation of wavelet transform based non-Hermitian symmetry OFDM for indoor VLC system using Raspberry Pi
Authors: Khalid Arslan 
Published: November 2020

Abstract
Optical orthogonal frequency-division multiplexing (OFDM) has proven to be an effective technique for the visible light communication (VLC) system in which data is sent and received through the intensity-modulated/direct-detected optical channel. However, OFDM exhibits high peak-to-average power ratio (PAPR) and for the generation of real-valued signal employs Hermitian symmetry (HS) of the frequency symbols which in turn boost the computational complexity (CC) and deteriorates the performance of the system. Besides, OFDM also included cyclic prefix (CP) as redundancy that reduces the spectral efficiency. This paper aims to target the aforesaid OFDM issues and introduce a novel technique in the form of wavelet transform (WT) based on non-HS OFDM (NHS-OFDM). In the proposed technique, an N-point complex OFDM signal is generated by utilizing wavelets as basis function, from which real and imaginary components are extracted and then concatenated to form a 2N-point real signal. The work also confirmed that the CC of the proposed technique is about 83% less than the conventional Fourier transform (FT) based NHS-OFDM technique due to which reduction in PAPR and bit error rate (BER) improvement is also noticed from the simulated results. The superior performance of WT based NHS-OFDM technique is further verified via experiments conducted by interfacing the computer terminal with Raspberry Pi (RPi) 3b+ modules. In the designed VLC prototype, the NHS-OFDM modem work as the software-defined radio (SDR) on a stand-alone computer. The experiment results reveal that real-time text message is transmitted and received without error at the communication range of 1.75 m while the data rate attains from the prototype is 3.921 Mbps.
Language shifts in the language biographies of immigrants from Upper Silesia residing in Germany
Authors: Zielińska Anna , Księżyk Felicja 
Published: November 2020

Abstract
The main objective of the article is to illustrate how language ideologies and language management at the macro-level (state language policy), micro-level (in families) and meso-level (local communities) influence language change and the conceptualization of multilingualism of immigrants from Upper Silesia residing in Germany. Language biographies of persons from Silesia demonstrate the significant influence of historical and political events on sociolinguistic processes. Original fragments of biographical interviews of the people surveyed constitute an integral part of the text.
NIST-certified secure key generation via deep learning of physical unclonable functions in silica aerogels
Authors: Fratalocchi Andrea , Fleming Adam , Conti Claudio , Di Falco Andrea 
Published: November 2020

AbstractPhysical unclonable functions (PUFs) are complex physical objects that aim at overcoming the vulnerabilities of traditional cryptographic keys, promising a robust class of security primitives for different applications. Optical PUFs present advantages over traditional electronic realizations, namely, a stronger unclonability, but suffer from problems of reliability and weak unpredictability of the key. We here develop a two-step PUF generation strategy based on deep learning, which associates reliable keys verified against the National Institute of Standards and Technology (NIST) certification standards of true random generators for cryptography. The idea explored in this work is to decouple the design of the PUFs from the key generation and train a neural architecture to learn the mapping algorithm between the key and the PUF. We report experimental results with all-optical PUFs realized in silica aerogels and analyzed a population of 100 generated keys, each of 10,000 bit length. The key generated passed all tests required by the NIST standard, with proportion outcomes well beyond the NIST’s recommended threshold. The two-step key generation strategy studied in this work can be generalized to any PUF based on either optical or electronic implementations. It can help the design of robust PUFs for both secure authentications and encrypted communications.
Dimensional confinement and waveguide effect of Dyakonov surface waves in twisted confined media
Authors: Chermoshentsev Dmitry A. , Anikin Evgeny V. , Dyakov Sergey A. , Gippius Nikolay A. 
Published: November 2020

Abstract
We theoretically study Dyakonov surface waveguide modes that propagate along the planar strip interfacial waveguide between two uniaxial dielectrics. We demonstrate that owing to the one-dimensional electromagnetic confinement, Dyakonov surface waveguide modes can propagate in the directions that are forbidden for the classical Dyakonov surface waves at the infinite interface. We show that this situation is similar to a waveguide effect and formulate the resonance conditions at which Dyakonov surface waveguide modes exist. We demonstrate that the propagation of such modes without losses is possible. We also consider a case of two-dimensional confinement, where the interface between two anisotropic dielectrics is bounded in both orthogonal directions. We show that such a structure supports Dyakonov surface cavity modes. Analytical results are confirmed by comparing with full-wave solutions of Maxwell’s equations. We believe that our work paves the way toward new insights in the field of surface waves in anisotropic media.
Structure of the mixed crystal (S)-(6-(bromo/chloro)-2-methoxy-2,6-dihydroquinolin-3-yl)(phenyl)methanol, C17H14Br0.5Cl0.5NO2
Authors: Geng Yi-Ding , Gong Yi-Xia 
Published: November 2020

Abstract
C17H14Br0.5Cl0.5NO2, monoclinic, P21/n (no. 14), a = 11.7324(5) Å, b = 7.4663(3) Å, c = 17.2211(8) Å, β = 104.890(1)°, V = 1457.87(11) Å3, Z = 4, R

gt
(F) = 0.0334, wR

ref
(F
2) = 0.0693, T = 296(2) K.
The crystal structure of trans-tetraaqua-bis(4-acetylphenoxyacetato-κ1
O)manganese(II), C20H26O12Mn
Authors: Jie Yin , Feng-Jun Zhang , Xi-Shi Tai 
Published: November 2020

Abstract
C20H26O12Mn, monoclinic, P21/c (no. 14), a = 4.8272(7) Å, b = 15.828(2) Å, c = 14.3688(19) Å, β = 95.312(13)°, V = 1093.1(3) Å3, Z = 2, R
gt(F) = 0.0344, wR
ref(F
2) = 0.0789, T = 100(1) K.
The crystal structure of N-(2-methoxy-4,5-bis[phenylselanyl]phenyl)picolinamide, C25H20N2O2Se2
Authors: Wang Lu-Yao , Wang Qing , Zhang Meng-Meng , Li Ping-Ping , Guo Xiao-Long 
Published: November 2020

Abstract
C25H20N2O2Se2, triclinic, P

1

‾

$&#x203e;{1}$

(no. 2), a = 9.6050(2) Å, b = 9.7531(2) Å, c = 13.2788(2) Å, α = 75.130(1)°, β = 81.824(1)°, γ = 72.329(2)°, V = 1142.75(4) Å3, Z = 2, R

gt
(F) = 0.0393, wR

ref
(F
2) = 0.1092, T = 294 K.