bluuebunny/crossref_metadata_2025_split huggingface dataset:
X-ray and ultraviolet observations of the eclipsing cataclysmic variables OV Bootis and SDSS J103533.02+055158.3 with degenerate donors
Authors: Schwope Axel , Worpel Hauke , Traulsen Iris 
Published: January 2021

Context.The majority of cataclysmic variables are predicted to be post-period minimum systems with degenerate donor stars, the period bouncers. Owing to their intrinsic faintness, however, only a handful of these systems have so far been securely identified.Aims.We want to study the X-ray properties of two eclipsing period bouncers, OV Bootis and SDSS J103533.02+055158.3, that were selected for this study due to their proximity to Earth.Methods.We have obtainedXMM-Newtonphase-resolved X-ray and ultraviolet observations of the two objects for spectral and timing analysis.Results.Owing to a recent dwarf nova outburst OV Bootis was much brighter than SDSS J103533.02+055158.3 at X-ray and ultraviolet wavelengths and the eclipse could be studied in some detail. An updated eclipse ephemeris was derived. The X-rays were shown to originate close to the white dwarf, the boundary layer, with significant absorption affecting its spectrum. There was no absorption in SDSS J103533.02+055158.3, despite being observed at the same inclination indicating different shapes of the disk and the disk rim. The white-dwarf temperature was re-determined for both objects: the white dwarf in OV Bootis was still hot (23 000 K) five months after a dwarf nova outburst, and the white dwarf in SDSS J103533.02+055158.3 hotter than assumed previously (Teff = 11 500 K).Conclusions.All three cataclysmic variables with degenerate donors studied so far in X-rays, including SDSS J121209.31+013627.7, were clearly discovered in X-rays and revealed mass accretion ratesṀ= 8 × 10−15− 4 × 10 − 13M⊙yr−1. If their X-ray behavior is representative of the subpopulation of period bouncers, the all-sky X-ray surveys with eROSITA together with comprehensive follow-up will uncover new objects in sufficient number to address the remaining questions concerning late-stage cataclysmic variable evolution.
A PC-based control method for high-speed sorting line integrating data reading, image processing, sequence logic control, communication, and HMI
Authors: Xiong Tianzhong , Ye Wenhua 
Published: January 2021

The vision-based automatic systems for in-line detection, identification, and separation are widely used in the industry, and it is difficult for such systems to achieve a simplified structure, high speed, high efficiency, and integrated coordinated control. Taking the dual-energy x-ray transmission solid waste high-speed sorting line as an example, an automatic control system was proposed, integrating data reading, image processing, sequential logic control, communication, and human–machine interface based on a personal computer with a general operating system. The hardware platform was introduced, and the design principles of operation parameters were investigated. The software was developed in C language with Microsoft Visual Studio 2012. The multi-core multi-thread technology has been utilized in which the optimized process-thread settings (OPTS), first-in first-out (FIFO) stacker, variable sharing between threads, and encoder position synchronization were employed. The whole system was experimentally verified at the line speed of 1 m/s. The results showed that the average scan cycle of sequential logic control was only 15 µs, which could fully ensure the real-time high-speed logic control and accuracy of position synchronization, OPTS improved the stability and disturbance rejection, FIFO stacker and variable sharing between threads was adapted to the realistic buffer materials, the encoder position synchronization avoided the accumulation of measurement errors, and the main operations run in parallel and coordinately and were suitable for the high-speed separation of multiple columns of irregular materials. The presented control system has the advantages of near real-time, high speed, high efficiency, low cost, easy reconstruction, and capability to manage and control integration and has a good practical application value.
The Mandarin ba-construction in school-age heritage speakers and their parental input
Authors: Mai Ziyin , Zhao Lucy , Yip Virginia 
Published: January 2021

Abstract
Recent research has identified language development in school-age heritage children as an important yet missing link
between child early bilinguals and adult heritage speakers. This study investigates the Mandarin ba-construction ([(NP1)-ba-NP2-VP])
through elicited narration among heritage Mandarin children (n = 27, aged 4–14) and their parents (n = 18)
in the UK. The results showed considerable similarities between the children and their parents in a number of key structural properties of
the ba-construction. However, the children produced the ba-construction with reduced frequency and in a “heritage variety” with a reduced
set of nominal and verbal phrases in NP2 and VP, which is not attested in a group of age-matched Mandarin speakers in Beijing.
Additionally, higher frequency of the ba-construction in the heritage children’s production is associated with greater lexical diversity,
rather than higher frequency of the ba-construction, in their parental input. We lay out positive aspects of the heritage variety of the ba-construction in sustaining the heritage language in bilingual contexts and consider the different roles of structural frequency and lexical
diversity in parental input in maintaining the heritage grammar in late childhood and adolescence.
‘I have her image of bringing me cherries as an offer’
Authors: Efthymiadou Christina , Angouri Jo 
Published: January 2021

Abstract
This paper explores the role of narratives as resources for enacting group membership and community building in the case of one company, a Greek-Turkish partnership, SforSteel. We pay special attention to the function of iterative stories and specifically one that indexes the origin of the partnership. The analysis shows that the story, and its episodes, act as significant interactional resources for partners to claim a shared regional identity, that of people coming from the area of Trabzon in the Black Sea region. By negotiating a common origin, the partners simultaneously strengthen their long-term relationship and continuously reconnect the past to the present. The strong long-term relationship has a symbolic status and constitutes a condition for being accepted in this community. Through the analysis of this story our discussion addresses the importance of iterativity and the foundational relationship between community and trust.
Counting the lions of Nemea
Authors: Endress Laura 
Published: January 2021

Abstract
The “Twelve Labours” of Hercules are among the topics most often associated with the illustrious half-god of Graeco-Roman
mythology. This series of heroic deeds includes the defeat of a monstrous lion that ravaged the countryside of Nemea in southern Greece, an
episode from the life of ancient Hercules that was handed down to medieval Europe through the works of classical authors, such as Virgil,
Ovid and Statius, and their commentators. As is often the case, this process of textual transmission gave rise to variation and multiple
interpretations: the sole Nemean lion is, in some instances, replaced by a pair of two felines or even a leonine trio, a phenomenon that can
be observed both in text and iconography. The present contribution aims to elucidate the history of a particular variational pattern
involving three Nemean lions, as seen in Raoul Lefèvre’s 15th century Recoeil des Histoires de Troyes. By tracing the
evolution of this particular version of the episode, we will consider commentaries, mythographic treatises and historiographical
compilations.
Le dragon en héraldique luso-brésilienne
Authors: Fonseca Fabio 
Published: January 2021

Abstrait
Dans l’iconographie chrétienne, le dragon est généralement associé au mal et se trouve représenté vaincu par le Christ, saint Georges, d’autres saints ou des figures bibliques. Au Moyen-Âge, il figure aussi sur des chapiteaux, dans les marges des manuscrits ou dans les blasons de familles et d’ordres militaires. Le dragon, parfois, est dépourvu de son sens négatif et investi d’un sens positif. La présente étude vise à identifier l’image du dragon dans le contexte luso-brésilien entre les XVIe et XIXe siècles. Il s’agit en particulier d’examiner la relation entre le dragon comme symbole du mal et le sens qu’il prend quand il est associé au pouvoir impérial brésilien. On envisagera le déplacement entre la dévotion à saint Georges, liée à la dynastie d’Avis, et l’image du dragon dans l’héraldique de la maison et dynastie de Bragance. Les images de trois codex seront examinées: le Livro do Armeiro-Mor (Livre de l’Armurier–majeur), un manuscrit enluminé de 1509, le Livro da nobreza (Livre de la noblesse) de 1521 et le Tesouro da Nobreza (Trésor de la Noblesse) de 1675. Ces codex sont conservés à Torre do Tombo à Lisbonne. À titre de comparaison, l’étude recourt aussi à d’autres images, afin d’analyser la survie de la représentation du dragon dans les symboles royaux.
Formules d’ouverture, formules de clôture et formules de transition dans le Roman de Renart
Authors: Suomela-Härmä Elina 
Published: January 2021

Abstraite
Les problèmes abordés dans cette étude concernent les débuts et les fins des branches du RdR ainsi que
les passages permettant de terminer un épisode et d’en ouvrir un autre à l’intérieur d’une seule et même branche. L’analyse se base sur
quatre éditions, dont chacune reproduit un manuscrit différent.
Une distinction sera faite entre prologue et incipit, d’une part, et explicit et épilogue, de l’autre. Dans les uns
(prologues et épilogues), le narrateur – quelqu’un qui se désigne par la 1ère ou la 3ème personne du singulier – est
bien présent; dans les autres (incipit et explicit), il brille par son absence.
Si les prologues et les épilogues sont des textes uniques, il en va autrement des incipit et des explicit qui suivent un
nombre limité de schémas. Quant aux zones de transition, elles ne sont pas dépourvues de caractéristiques propres, les copistes ne les
interprétant pas toujours de la même façon: ce que les uns prennent pour un incipit ou un explicit n’est pour les autres qu’une formule de
liaison.
Le tigre, la guivre et la monture de Bacchus
Authors: Trachsler Richard 
Published: January 2021

Abstraite
Le tigre, au Moyen Âge, est un animal mal connu. Il n’est guère présent dans les ménageries avant la fin du xv
e siècle, et les bestiaires et encyclopédies mentionnent tous les mêmes caractéristiques, en particulier le stratagème qu’emploient les chasseurs pour enlever à la tigresse ses petits. Dans certains textes, encyclopédiques ou autres, le tigre est assimilé à un serpent et l’on rencontre occasionnellement, dans les bestiaires, une image d’un tigre ailé. Des images semblables se trouvent dans la tradition iconographique émanant de Pierre Bersuire, qui fait du tigre la monture de Bacchus. Il faut sans doute lier les deux phénomènes et expliquer la confusion à partir d’un serpent nommé tire, qui n’est certes, sauf erreur, pas décrit comme étant ailé, mais qui peut en tant que reptile présenter des traits d’hybridité.
Research Problems in Recommender systems
Authors: Mishra Nitin , Chaturvedi Saumya , Vij Aanchal , Tripathi Sunita 
Published: January 2021

AbstractWith continuous growth of web applications around the globe, it is a challenge to find the suitable information needed for the user in a limited time.Number of handheld mobile devices is increasing and most of the business revolves around the correct search of the data. Without a proper recommender system it is very difficult to get required information from the web applications. Web applications use recommender systems to provide suitable data to users based on their choices and interests. For different kinds of needs different types of recommender systems have been proposed. Two most basic types of recommender systems are collaborative filtering recommender system and content based recommender system. Sometimes these two recommender systems are combined to increase the efficiency of a recommender system The generated new recommender system is known as hybrid recommender system.The purpose of this paper is to help readers understand the basics of recommender systems. This paper identifies key areas of research openly available for new researchers. After reading this paper new researchers can understand basic problems of recommender systems which need improvement and hence they can make those problems their area of research.
Nutrition Deficiency Detection in Leaves Using K-Means Clustering Algorithm
Authors: Shalini S , Muruganandham J , Jayasri R 
Published: January 2021

Abstract
Plants are dreadfully significant slice of our den and acts as an hefty foundation of energy. They’re the intrinsic a part of a group of baffle to mapped out the difficulty of worldwide heating. They enforce the desirable arrangement of nutrients to continue, nurture and reproduce. quite few genera of deficiency are submit in plants. Nitrogen is one among the gorgeous marble and a foremost element of amino acids that acting an important responsibility in crop invention. K-means clustering algorithm is used for segmentation which classifies substance that chains cluster of facial appearance into K figure of curriculum and within the end classification is performed by means of K-means classification. So image dispensing routine is used for business meeting deficiency on foliage untimely and accurately.
Novel method for liver cancer detection using super pixel and ANN algorithm
Authors: Sangeetha M , Dharani Priya S 
Published: January 2021

Abstract
Nowadays most of the people are affected by liver cancer that can be the leading cause of cancer death. To analyze the liver cancer detection using super pixel segmentation and artificial neural network (ANN) Algorithm and it reduces the time complexity. An automatic 3D segmentation method for high energy sound waves in ultrasound liver images, which is based on a fusion of accurate time-consuming method and statistical texture prior. Three orthogonal linear filter banks are used to extract texture features from each image in the region around the point of the database. The atlas database includes registered liver images from previous patients and their segmented liver surfaces. To train the problem of patient–specific frequency content in the image features from the atlas database are using ANN algorithm and then to segment the super pixel segmentation the liver image from a new patient. The dataset of liver cancer detection are benign and malign.
Retinal Blood Vessel Segmentation Using Edge Detection Method
Authors: Chatterjee Sayan , Suman Amit , Gaurav Rishikesh , Banerjee Sampriti , Singh Ajay Kumar , Ghosh Birendra Krishna , Mandal Rajat Kumar , Biswas Mainak , Maji Debasis 
Published: January 2021

Abstract
Currently eye disease is a major challenge in our life. The main diseases in human eye are Ocular Hypertension, Glaucoma, Diabetic Muscular Edema, Diabetic Retinopathy, Color Blindness, Phonetic, Blindness etc. The only way is to identify the cause and then the treatment could be stared as early as possible. To detect in 1st stage, the measurement as well as automatic tracking of the blood vessels of human eye are very essential task. The photograph of human eye is called Fundus image. To detect the eye vessels, segmentation of these vessels are the main motivation of the work. Here, a survey is being done to do the detection using various edge based segmentation procedures, i.e., Kirsch filter, Canny, Prewitt, Sobel and Fuzzy-C. The work is applied on freely available DRIVE database. The result shows that, Kirsch filter is the best among the other benchmark methods when the results are evaluated for the parameters such as, Accuracy, Specificity and Sensitivity. The outcome of Accuracy is varies from 0.77 to 0.94, Specificity varies in the range between 0.76 to 1.00 and finally Sensitivity lies between 0.20 to 0.84.
Automatic Street Light Illumination Intensity Control Using LUO Converter
Authors: Balaji B. , Priyadharshini V.G. , Revathy R. 
Published: January 2021

Abstract
The paper deals with the control the street lighting according to the intensity of sunlight using LUO Converter. To improve the efficiency of system, IR sensor is used. IR (infrared) sensor is the device which is used to detect and measure the infrared radiation in the environment. Infrared sensor has two components in it and they are transmitter and receiver. The transmitter sends out the infrared radiation. The radiation hits out the object and returns back. The receiver in the Infrared sensor receives the infrared radiation. This received signal is used to detect and measure the object. LUO Converter is the DC-DC Converter which is used to boost up the input voltage.This system is to operate the street lighting system efficiently by using the Infrared Sensor, PIC sensor and the LUO Converter. PIC belongs to the microcontroller family which is made with the technology of Microchip. The PIC Controller is used to generate the PWM signal for the power converter. The power of the light depends on the duty cycle of the converters. In most of the converters, there is inductor coupled but this converter don’t have inductor, so that there is no channel inductance, so which high voltage with high productivity.
Swarm Robotics: A New Framework of Military Robots
Authors: Sangeetha M , Srinivasan K 
Published: January 2021

Abstract
In Industries robots are programmed to perform specified tasks like and place, packaging, transporting etc. Every robots need to be programmed individually to accomplish the task given. In the proposed work one master robots is designed and programmed in such a way that can train number of slave robots sequentially to perform multiple tasks at different processing lines of an industry this reduces the complexity in programming individual robots for different operations and also without programming the slave robots. This Robot plays a vital role in Industry Automation. Servomotors are used to achieve rotational motion of the robotic arm and Lora module to train slave robots. A robot is a machine that can perform task operation. A robot is a machine can perform specific task automatically or the guidance. The project proposes robotic vehicle that has an intelligent built in its that it directs itself whenever an obstacle comes in its path. An ultrasonic sensor is used to detect any obstacle in front of it and sends a command to the ArduinoNano.
Steady State Heat Conduction Structural Thermal Analysis of Boiler Tubes and its Design Attributed Failure
Authors: Velmurugan V. , Dhivyaraj S. 
Published: January 2021

Abstract
One of the important parts of the thermal power plants are tubes carrying steam generally called as boiler tubes. Any leakages in these tubes cannot be identified easily with human senses and also boiler operating condition it is impossible to investigate these tubes or leak. In order to do inspection it require shut down of the plant involving production losses. Though we do inspection with human abilities there is possibility of occurrence of error. Frequent shut downs for inspection leads to huge production loss. In recent days boiler explosions and its impact have become regular news. The intent of this paper is to identify design related failure of the boiler tubes under the thermal loading conditions. A single boiler tube is designed and its behaviour under thermal load operating conditions has been studied with the help of Ansys R15 student release simulation software. This paper gives the detailed study of the more vulnerable regions of boiler tube in design aspect.
Multimodal Medical Image Fusion using Grey World Algorithm and Deep Learning
Authors: Vasanthi Mrs.D. , Palani Dr.U. , Soundarya Ms.S. , Sivasakthi Mrs.T. 
Published: January 2021

Abstract
Medical image fusion strategy assumes an undeniably basic job in numerous clinical applications by getting the corresponding data from clinical pictures with various modalities. The combination of these pictures assists doctors with giving dependable and exact clinical finding to their patients, and explores in any case outlandish medical procedures. The segmentation by ANN for these sub-pictures are utilized to get the areas of each level. So as to lessen the computational multifaceted nature, the proposed calculation is utilized to accomplish image segmentation.
Detecting LPG Leakage and Automatic Turn off using Arduino Connected with PIR Sensor
Authors: Vishnu Priya R , Kowsalya G 
Published: January 2021

Abstract
In today’s world, every home is provided with separate LPG connection for cooking.Nowadays, due to the advancement in technology human beings are getting upgraded day by day. In today’s world, every home is provided with separate LPG connection for cooking. It increases the efficiency and decreases the time consumed. Even though it is much better, there are certain critical conditions are to be considered whenleakage occurs. While operating with LPG, risks are considered and a reliable technique is to be adapted in the kitchen.Many techniques are available to provide constant monitoring and control of gas leakage in residencies. This paper describes one such method of utilizing LPG in home safely andautomatic turning off of the valves at the time of leakage. In this paper, I have used Arduino UNO to carry out the desired task. Arduino is connected to gas sensor (MQ-2) and temperature sensor (LM-35). Gas sensor is used to detect leakage of gas and temperature sensor is used to detecttemperature constantly. In addition to that, I have used a PIR sensor for detecting the presence of human in the kitchen. If no human is detected over a period of time, an alarm is on and automatically the valve of the LPG cylinder goes off.
Effective Design and Implementation of Three Port Hybrid Converter for Hybrid Power Sources
Authors: Soumiyaa K. , Aruna D. 
Published: January 2021

Abstract
With the improvement in the power electronics innovations, a bigger amount of PV panels are integrated as power energy sources into distributed power generations systems leads to the betterment of hybrid renewable energy systems. Enhancement in a renewable hybrid generation system is required because it is the future origin of power where we are expected to produce a lot of yield voltage. It tends to be finished by utilizing the plan of the converter design. In recent days, the developing method on hybrid power generation systems makes it more beneficiaries on the power systems domain. So, an integrated three port converter with combinations of PV cell/fuel cell/battery systems is proposed here. We need to effectively increase the generation to meet up with the power demand by boosting output power. To build the effective yield power by a blend of photovoltaic (PV)/Fuel cell energy unit with the assistance of the structure strategies of the three-port converter dependent on five switches connect DC-DC support converter. Along these lines, we could accomplish a superior productivity is verified with MATLAB/SIMULINK simulation results and scale down the model is developed.