bluuebunny/crossref_metadata_2025_split huggingface dataset:
Otto Jespersen, one more broken leg in the historical stool of generative linguistics
Authors: Lorenzo Guillermo 
Published: April 2022

Summary
Over the years, Noam Chomsky has constructed a historiographic narrative according to which Generative Grammar is the outcome of a mix comprising the early awareness of creativity by Galileo, the Cartesians, and Humboldt, the formalization of recursive functions by computational theorists, and an incipient internalist ‘language’ concept notably foreshadowed by Otto Jespersen. This paper tries to show that the latter ingredient is to be removed from the historical recipe for Chomskyan linguistics. More specifically, the paper claims that the almost ritual repetition of the name of the Danish linguist belongs to a component of the generativist rhetoric that is ‘non-rational’. Such a component is part and parcel of most ground-breaking theories.
Implicit narratives and narrative agency
Authors: Meretoja Hanna 
Published: April 2022

Abstract
This article proposes the concept of implicit narrative as an analytic tool that helps to articulate how cultural models of narrative sense-making steer us to certain patterns of experience, discourse, and interaction, and the concept of narrative agency as an analytic tool for theorizing and evaluating the processes in which we navigate our narrative environments, which consist of a range of implicit narratives. As a touchstone for developing these theoretical concepts, which serve not only narrative studies but also overlapping fields such as memory studies and cultural studies, the article analyzes the implicit cultural narrative that has most strongly dominated public discourse on the coronavirus pandemic: the narrative of war. Thereby, the article also contributes to the analysis of pandemic storytelling and its effects on us, as the cultural memory of the pandemic is currently taking shape and affecting our orientation to the future.
Review on crystal structures and magnetic properties of RTX
3 materials
Authors: Rai Binod K , O’Rourke Patrick , Roy Utpal N 
Published: April 2022

Abstract
The structural and compositional diversity of the RTX
3 family of materials offers various magnetic and thermodynamic properties such as complex magnetic structure, vibronic bound states, heavy-fermions, valence fluctuations, metamagnetism, spin glass behavior, quantum criticality, and unconventional superconductivity. Here we present an overview of the crystal structures, crystal growth and magnetic properties of RTX
3 compounds as well as a discussion of the relevant physics. The magnetic properties of several compounds of the RTX
3 family still remain unexplored. The compounds with a complex magnetic structure could potentially host exotic topological phases. This review article may help explore exotic magnetic properties such as the vibron state and topological spin textures.
Gas sensing behavior of metal-catecholates based MOFs
Authors: Jha Ravindra Kumar , Murali Meenu , Bhat Navakanta 
Published: April 2022

Abstract
We report on the usability aspect of triphenylene ligand-based metal–organic frameworks (MOF) as the potential gas sensing element in chemiresistive devices. Among various possibilities, we explored mono-metallic (Nickel-based) and bi-metallic (Nickel and copper-based) in room temperature gas sensing. Our investigations suggest that the chemiresistive device based on nickel catecholate MOFs were highly sensitive to ethyl alcohol gas in the concentration range of 5–100 ppm with decent sensing parameters such as response time, recovery time, repeatability, stability, etc. We also investigated bimetallic (Nickel and copper) catecholate based MOFs in gas sensing with different metallic content ratios (Cu: Ni:: 60:40 and 40:60). We found that the 1D Cu0.6Ni0.4-CAT nanostructures-based gas sensor to be selective towards H2 gas (0.2–7 ppm) at room temperature. We further explored the gas sensing abilities of Cu0.4Ni0.6-CAT based devices, and we found them to be selective towards NO2 gas. However, it was not possible to obtain the current versus concentration curve due to the gas molecules’ aggressive chemisorption. However, the device could perform well (with a hysteresis error of ∼10%) for detecting NO gas (which has the 2nd best absolute response after NO2). These results indicate that the ratio of metal ions in the MOF directly influences the sensing capabilities. Hence, rational synthetic variations in the metal content in MOF can lead to the design and develop highly selective and sensitive chemiresistive sensors.
The inverse scattering transform for weak Wigner–von Neumann type potentials
*
Authors: Grudsky Sergei , Rybkin Alexei 
Published: April 2022

Abstract
In the context of the Cauchy problem for the Korteweg–de Vries equation we extend the inverse scattering transform to initial data that behave at plus infinity like a sum of Wigner–von Neumann type potentials with small coupling constants. Our arguments are based on the theory of Hankel operators.
Enhanced light extraction efficiency of UV LEDs by encapsulation with UV-transparent silicone resin
Authors: Wu Shaojun , Guttmann Martin , Lobo-Ploch Neysha , Gindele Frank , Susilo Norman , Knauer Arne , Kolbe Tim , Raß Jens , Hagedorn Sylvia , Cho Hyun Kyong , Hilbrich Katrin , Feneberg Martin , Goldhahn Rüdiger , Einfeldt Sven , Wernicke Tim , Weyers Markus , Kneissl Michael 
Published: April 2022

Abstract
Increase of light extraction efficiency (LEE) and total output power of UV light emitting diodes (LEDs) emitting at 265 and 310 nm, respectively, after encapsulation with a UV-transparent silicone are studied. Raytracing simulations suggest that a properly placed hemispherical encapsulation with a refractive index in the range from 1.4 to 1.8 enhances the LEE from 8% to up to 16% for flip-chip mounted UV LEDs with non-reflective metal contacts. The simulations also show that the absorption coefficient of the encapsulant determines the maximum LEE and optimum dome diameter and that it should be below 3 cm−1. The silicone encapsulant exhibits a refractive index of 1.47 (1.45) and an absorption coefficient of 1.3 cm−1 (0.47 cm−1) at 265 nm (310 nm). AlGaN/sapphire-based UVC and UVB LED chips were flip-chip mounted on planar AlN ceramic packages and encapsulated with a 1.5 mm-radius hemispherical silicone dome. The total output power at an operation current of 350 mA increased from 27 to 46 mW for 265 nm LEDs and from 45 to 78 mW for 310 nm LEDs. This corresponds to an enhancement of about 70%, which agrees with the simulations. Moreover, far-field measurements of encapsulated LEDs showed a narrowing of the emission cone.
Thermal and electrical design of superconducting demonstrator for magnetic density separation
Authors: Kosse J J , Wessel W A J , Zhou C , Dhallé M , Tomás G , Krooshoop H J G , ter Brake H J M , ten Kate H H J 
Published: April 2022

Abstract
In this paper the focus is on thermal and electrical design aspects of a NbTi-based demonstrator magnet for magnetic density separation (MDS) that is being constructed at the University of Twente. MDS is a recycling technology that allows the separation of non-magnetic particles based on their mass density, using a vertical magnetic field gradient and a ferrofluid. To minimize the distance between the planar array of racetrack coils and the ferrofluid bath, the system is conduction-cooled. First the thermal design is presented, which shows that the coils can operate below 4.5 K with sufficient margin using a single cryocooler. High-purity aluminium heat drains enable a low thermal gradient across the cold mass. The current path is introduced, as well as the adopted protection scheme. The magnet’s stored energy can safely be dumped in the coils. Diodes are placed (anti-)parallel to the coils in the cold to prevent high terminal voltages. In the case of a quench in the superconducting part of the current leads or an external anomaly, a switch is opened and the current is forced through a resistor in series with the diodes, causing a deliberate transition of the coils to the normal state and thus a fast ramp-down.
Numerical analysis and experiment of critical current of a preliminary CICC model made from quasi-isotropic strands
Authors: Nie Yang , Wang Yinshun , Zhang Guangyi , Wang Jian , Liu Wei , Wang Lecheng , Huang Zhenghao 
Published: April 2022

Abstract
The rare-earth barium copper oxide (REBCO) tape has a good development prospect in the application of large high field magnets at low temperatures because of its high critical current density and excellent mechanical and electro-magnetic properties. In recent years, some superconducting conductors based on REBCO tapes have been proposed, such as cable-in-conduit conductor (CICC) designed based on TSTC and CORC. In this paper, a type of preliminary CICC model is proposed and fabricated based on the quasi-isotropic strand. The critical current characteristics of the model and the contact resistance of copper terminals are analysed, respectively. Firstly, the critical current of a partially-filled superconducting CICC is calculated by self-consistent model at 77 K/self-field. Then, a preliminary CICC experimental sample is made and tested to measure its critical current. Finally, the critical current of a full-size superconducting CICC under different magnetic induction intensities and external magnetic field orientations at 77 K and 4.2 K are also calculated, respectively. The results provide another CICC candidate for the application of large high field magnet in the future.
Multiband Emission Properties of 1ES 1959+650
Authors: Li Huai-Zhen , Qin Long-Hua , Gao Quan-Gui , Yi Ting-Feng , Gong Yun-Lu , Guo Di-Fu , Jiang Yun-Guo , Lu Fang-Wu , Ma Ju , Ren Ji-Yang , Liu Ya-Li 
Published: April 2022

Abstract
We have systemically studied the properties of 1ES 1959+650, specifically its multiband variability and emission mechanisms. We carefully analyze multiband variability properties by four different kinds of trusted approaches. In contrast with previous research and thanks to our more detailed data, we find that an unprecedented significant quasi-periodic component with timescale

P
=

266.2

−
7.2

+
7.5

in the optical R band indeed exists. We suggest that this light curve may result from accretion flow instabilities. Further, among the multiband spectra, we find no significant correlation between different bands, which implies that the physical origin of the dominant radiation for different bands is not the same. Motivated by these results, we go on further to study the radiation mechanisms based on quasi-simultaneous spectra. Here, a model that self-consistently involves protons, electrons, and photons is used to study the light curve and interpret the spectral energy distribution of 1ES 1959+650. Considering the variability properties and model calculation, we suggest that the variation of the cutoff energy of electrons and protons may dominate the variability of X-ray and γ-ray bands in 1ES 1959+650.
Planet Patrol: Vetting Transiting Exoplanet Candidates with Citizen Science
Authors: Kostov Veselin B. , Kuchner Marc J. , Cacciapuoti Luca , Acharya Sovan , Ahlers John P. , Andrés-Carcasona Marc , Brande Jonathan , de Lima Lucas T. , Di Fraia Marco Z. , Fornear Aline U. , Gallo Francesco , Hyogo Michiharu , Ienco Riccardo M. , de Lambilly Julien S. , Luca Hugo A. D. , Quintana Elisa , Salik Ryan , Yablonsky John M. 
Published: April 2022

Abstract
NASA’s TESS mission yields light curves for tens of millions of stars spread across the entire sky, a data set that will be a challenge to fully exploit without help from citizen scientists. To address this, we launched a new citizen science project, called “Planet Patrol”, designed to analyze TESS data on exoplanet and eclipsing binary candidates. The project will also serve to benchmark different data reduction pipelines and help analyze unusual light curves that might defeat automated algorithms. The first stage of the project ran on the Zooniverse platform between 2020 September and November and involved more than 5500 registered volunteers. The Planet Patrol citizen scientists produced nearly 400,000 classifications of difference images used for photocenter analysis of about 1000 planet candidates from TESS. The results were incorporated into the photocenter module of the Discovery And Vetting of Exoplanets (DAVE) pipeline to improve its reliability. Specifically, the classifications indicated that all per-transit difference images are appropriate for photocenter analysis for about 40% of the planet candidates, and the corresponding measurements are sound. In contrast, the volunteers found that all per-transit difference images are dominated by astrophysical contamination and/or systematic effects for about 10% of the planet candidates. This indicated that the corresponding photocenter measurements are unreliable. Finally, the fraction of images appropriate for photocenter analysis varies between 0 and 1 for half the candidates. Removing the images classified as poor from DAVE’s analysis of most of these candidates helped reduce the corresponding photocenter uncertainty by up to ∼30%. We plan to implement the output from another module of DAVE, designed for lightcurve vetting, into a second stage of the Planet Patrol project.
Review-Heat Transfer Inside Cavity Flows Trends
Authors: Jabado Abdul Hamid , Assoum Hassan H , Hammoud Ali , Meraim Kamel Abed , Sakout Anas , El Hassan Mouhammad 
Published: April 2022

Abstract
The complex cavity flow represented by the feedback mechanism and self-sustained oscillations of cavity shear layer are widely investigated in various publications either through analysing the aero-acoustic phenomenon occurring and its control or through examining the heat transfer mechanism in such a flow. Boundary layer separation, turbulence, unsteadiness, recirculation and reattachment complicate the flow phenomena at the cavity and may lead to substantial effects on heat transfer. Besides, in order to enhance the heat transfer in some applications, cavity flow was introduced, and thus the importance of understanding the cavity flow structure and its relation with heat transfer has become vital, where such a phenomenon occurs in many engineering applications. This paper presents a literature review on the studies that focus on examining heat transfer in cavity flow, by evaluating the effect of cavity geometry and inlet flow field on heat transfer at different cavity regions.
Effect of Perform-Achieve-Trade Cycle-II: Study of the Indian Cement Industry
Authors: Oak Hena 
Published: April 2022

Abstract
Industrial sector is the largest consumer of fossil fuels in India. Dependence on fossil fuels also increases carbon dioxide emissions. In order to steer the industrial sector towards a more efficient use of energy resources, Government of India and Bureau of Energy Efficiency launched the Perform-Achieve-Trade scheme to improve energy efficiency of select high energy consuming industries. From each of these industries, on the basis of their energy consumption, a set of plants were selected for implementation of the scheme. PAT has multiple cycles of implementation. This paper analyses the effect of PAT Cycle-II on the energy intensity of the cement industry for a sample period of 2004-05 to 2020-21, along with the effect of other control variables like gross fixed assets, R&D expenditure, imports, and FDI. Results show that in its second phase PAT has had a significant impact in reducing energy intensity of designated cement firms. The paper also estimates the amount of energy saved by the cement industry, and the fall in CO2 emissions thereof. It has helped to achieve an energy saving of 3.964 Mtoe, and the concomitant fall in CO2 emissions of 15.608 MtCO2.
Application Prospect of Solar Water Heating System with Seasonal Thermal Storage in Rural Area of Northern China
Authors: Cheng Zhengran 
Published: April 2022

Abstract
In the past few decades, the traditional method of coal-fired heating in rural area of northern China has been exposed many environmental problems. Therefore, as a kind of clean and renewable energy, solar resource has attracted more and more attention. To ensure long-term domestic heating requirement in the countryside, seasonal thermal storage was developed to overcome seasonal variability, the main drawback of solar energy. However, the application prospect of this technology in rural area of northern China still remains to be discussion. This study selected six identical country seats (with 1800m 2 heating area) in Beijing as the model, and from three aspects of climate condition, thermal performance, economic and environmental impact, analyzed the application conditions of solar water heating system with seasonal thermal storage in space heating and domestic hot water. The results show that with 420m 2 solar collectors and 905m 3 seasonal storage tank, the proposed system can meet most demand of space heating and domestic hot water for six buildings, and its equivalent annual cost is acceptable compared to other heating systems despite high one-time cost may become the main problem of its advancement in the countryside of northern China.
Energy Generation Intensity (EGI) for Parabolic Dish/Engine Concentrated Solar Power in Muscat, Sultanate of Oman
Authors: Marzouk Osama A 
Published: April 2022

Abstract
In this work, the electric energy generation from a parabolic dish/engine array of 16 dish/engine units is estimated using the simulation tool Energy3D. This array represents one of the concentrated solar power (CSP) technologies, and its performance was assessed assuming that it operates in Muscat, the capital of the Sultanate of Oman. The dishes are identical, having a rim radius of 4 m and a focal length of 3 m. Each dish is perfectly tracking the sun’s position, while mounted over a pole with a height of 4 m. The dishes have a spacing of 10.9 m in the West-East direction, and a spacing of 11.9 m in the South-North direction. With a set thermal efficiency of 35%, optical efficiency of 70%, mirror reflectance of 90%, and receiver absorptance of 95%, the electric annual output from the array was predicted to be 26.3 MWh. With a foundation area of 2,024 m 2, this gives an energy generation intensity (EGI) of 13.0 kWh/year/m 2. The electricity generation in each of the 12 months of the year was also predicted, and was found to vary from 30.4 Wh/day/m 2 in February to 42.2 Wh/day/m 2 in May, leading to a favourable seasonality index of 1.39.
Market Options for Energy-flexible Industrial Consumers
Authors: Bianchini Isabella , Zimmermann Fabian , Torolsan Kerim , Sauer Alexander 
Published: April 2022

Abstract
It is widely accepted that industrial consumers can contribute to the goal of a cost-efficient energy sector by offering energy flexibility. The concrete and conscious actions on industrial processes ending up in a variety of consumption are named in literature “energy flexibility measures”. From the consumers’ point of view, the question is where the locally realizable energy flexibility measures can be offered with the highest cost reduction or profit. The identification of the most promising market segments or tariff schemes for the commercialization of energy flexibility measures, defined as “market options”, is not a trivial activity due to the complex regulatory framework that characterizes the energy market. This paper aims at introducing a standard definition of market options that supports the energy-flexible customer to evaluate where the energy flexibility can be commercialized without specific knowledge of the energy market regulation. The definition is applied to the German energy market and the market options are identified. Through a price trend analysis, the market options with the highest potential for cost reduction or profit are investigated. The results show that in the German market consumers have the highest chances to reduce their energy supply costs through the market options related to network charges and energy-only market.
Analysis of Some Properties of an Activated Sludge Wastewater Treatment Model
Authors: Zlateva P , Dimitrova N 
Published: April 2022

Abstract
The aim of the paper is to study some properties of a model describing the wastewater treatment process with activated sludge. The process configuration consists of an aeration tank and of a secondary settler. The mathematical model is described by three nonlinear ordinary differential equations. The paper presents important results on existence and uniqueness of positive model solutions. Numerical computations establish the stability properties of the equilibrium points with respect to two important control model parameters and present the corresponding input-output static characteristics. The dynamic behaviour of the model solutions is illustrated through computer experiments carried out in the computer algebra system Maple. The results can be useful in designing real control strategies of the wastewater treatment processes with activated sludge.
Device for waterless cleaning of root crops
Authors: Sabiev U K , Khuzin I R , Soyunov A S , Prokopov S P , Abdylmanova R K 
Published: April 2022

Abstract
Existing devices for waterless cleaning do not provide essential quality due to low efficiency either because of significant tubers damage. Device for waterless cleaning of root crops is developed in Omsky SAU which relates to the agricultural machine-building industry in particular to devices for dry cleaning of tubers from the soil, grassy impurities and haulm before sale preparation as well as for feeding preparation in technological lines of feed mills. High quality cleaning from the soil is achieved by the spiral line of pile arrangement which provides the uniform movement of the processing material heap and prevents tubers unloading due to various pile length that increases the speed of tubers rotation and provides more frequent tuber surface contact with working tools due to spring-loaded bottom providing required compression degree of processing tubers to the brush roll at the expense of dust collector that allows to get rid of small impurities during the technological process and prevents from resetting on tuber surface. Usage of this device allows to reach high quality of cleaning under low degree of damage.
Ecology of old lakes in the Nadym river basin
Authors: Kolesnikov R A , Krasnenko A S , Shinkaruk E V , Pechkin A S 
Published: April 2022

Abstract
The authors studied the ecological state of the ancient lakes Yantarnoe 1 and Yantarnoe 2 in the Nadym river basin. Both lakes are subject to intense anthropogenic impact, which arose during the period of oil and gas development of the Nadym lowland and the formation of the city of Nadym. Water areas of water bodies are differentiated by the content of pollutants. The water in the lakes mainly belongs to the classes “dirty” and “polluted”, less often “clean” and “moderately polluted”. In the lakes, there is a high number of invertebrates with a low species diversity. Measures have been developed to improve the ecological state of water bodies.