bluuebunny/crossref_metadata_2025_split huggingface dataset:
Principles and stages of creation of automatic control systems with a model of complex technological processes
Authors: Loriia Maryna , Tselishchev Oleksii , Eliseyev Peter , Porkuian Olga , Hurin Oleksandr , Abramova Alla , Boichenko Sergii 
Published: January 2023

The object of this study is an effective approach to designing automatic control systems with a model of complex technological processes, which include interrelated and complementary stages from the formulation of the task to the implementation of the control system at the facility. It includes a set of measures, starting with the analysis of the process in its hardware design with the construction of an information and logical scheme to the development of all types of security and commissioning.
The main problem in the implementation of a control system with a technological process model is the limited ranges of adequacy of mathematical models. Therefore, when changing the load on the unit, changing external and internal perturbations, it is necessary to constantly ensure the necessary level of adequacy of the models. It is proposed to use a combined model as a mathematical model of the control object, combining the advantages of analytical and experimental-statistical models. This makes it possible to significantly expand the information base of the resulting model. A simple and effective iterative algorithm for calculating this model is also proposed. It includes sequential steps to determine the parameters of the model by basic dependences (the deterministic part of the model), followed by clarifying them according to the current data from the object (experimental statistical part of the model). The effectiveness of the approach is confirmed by the example of ASC TP of the ammonia synthesis column. By improving the accuracy of determining the control parameters and narrowing the range of their change around the optimal value, the volume of ammonia release increases by 5–8 %.
The application of the described approach on the example of the development of an automatic control system for the technological process of ammonia synthesis confirmed the economic feasibility of implementing the proposed solutions
Comparison of anterior segment parameters in normal and keratoconus eyes using combined placido-disk schiempflug imaging-based topography
Authors: Kurakula Madhuri , Yelamanchili Pasumarthi Pavani , Gitanjali Mannam , Srawanthy Kotagiri 
Published: January 2023

The aims: The purpose of this study was to evaluate and compare the anterior and posterior corneal surface parameters, keratoconus indices, thickness profile data, and data from enhanced elevation maps of keratoconus and normal corneas using Combined Placido-Schiempflug imaging-based topography, and to determine the sensitivity and specificity of these parameters in discriminating keratoconus from normal eyes.
Materials and methods: A retrospective comparative observational study of 100 normal eyes and 100 keratoconus eyes was done from April 2014 to May 2015 at MM Joshi Eye Institute, Hubli, Karnataka. We evaluated and compared the anterior and posterior corneal surface parameters, keratoconus indices, thickness profile data, and data from enhanced elevation maps of keratoconus and normal corneas using Combined Placido-Scheimpflug Imaging based Topography to determine the sensitivity and specificity of these parameters in discriminating keratoconus from normal eyes.
Results: Keratoconus indices (Sif, Sib, BCV-f, BCV-b, KVf, KVb, CCT, MinCT) showed Excellent AUROC values followed by K- steep in posterior curvature at 3 mm, 5 mm followed by K- steep in anterior curvature and other parameters in discriminating Normal from Keratoconus-Suspect eyes. Elevation indices- BCV-f, BCV-b, CCT, Min-CT, K-steep & K-flat in anterior and posterior curvature in 3 mm, 5 mm, 7 mm, and CV were significant in discriminating normal from mild keratoconus. All parameters except ACV and ICA were significant in discriminating normal from moderate keratoconus. All parameters were significant in discriminating normal from severe keratoconus eyes. Morphological indices were significant in differentiating mild, moderate and severe keratoconus.
Conclusion: Many parameters were statistically significant between keratoconus and normal eyes compared with early keratoconus eyes.
The topography and corneal aberration results in this study are promising for detecting ectatic corneas. In our study, thickness indices-CCT, MinCT, Abberometry indices- BCVf, BCVb and keratometry in steep meridian at posterior curvature had the highest AUC scores in differentiating normal from sub-clinical keratoconus.
Elevation indices- Rbf-f, Rbf-b, thickness indices- CCT, MinCT, aberrometry indices, and keratometry-steep in anterior & posterior curvature had the highest AUC scores in differentiating moderate and severe keratoconus
Study of hypoglycemic properties of «Glyphasonorm» tablets and «Glyphasolin» capsules on the streptozotocin-induced diabetic rat model
Authors: Rybak Viktoria , Honcharov Alexander , Korol Viktoriia 
Published: January 2023

The risk of developing any complications of diabetes is significantly reduced by monitoring and correcting blood glucose levels and blood pressure, as well as by observing healthy lifestyle rules. Early detection and treatment of type 2 diabetes contribute to the prevention of disease progression and the development of complications.
The aim is to study the hypoglycemic effect of «Glyphasonorm» tablets and «Glyphasolin» capsules in a rat model of streptozotocin-induced diabetes.
Materials and methods. The studies were carried out on Wistar rats injected intraperitoneally with nicotinamide at a dose of 230 mg/kg 15 minutes before intravenous injection of streptozotocin at a dose of 65 mg/kg. The dynamics of body weight of rats, glucose and glycosylated haemoglobin levels under the impact of long-term administration of metformin, «Glyphasonorm» tablets and «Glyphasolin» capsules were investigated.
Results and discussion. The studies on a streptozotocin-induced diabetic model have established that under the action of «Glyphasonorm» tablets and «Glyphasolin» capsules, the level of glycosylated haemoglobin, which decreased along with the level of glucose in the blood of animals, was significantly reduced in comparison with diabetic control. After 14 days of research, the "Glyphasolin" capsules showed more pronounced hypoglycemic activity (4.4 % and 8.0 % more) than the "Glyphasonorm" tablets and the reference drug metformin. The «Glyphasolin» capsules on the 12th day of the study showed a marked decrease in glycosylated haemoglobin in the blood of animals (3.1 % and 5.6 % more) than the «Glyphasonorm» tablets and metformin.
Conclusions. In the experimental model of streptozotocin diabetes in rats, "Gliphasolin" capsules showed a more pronounced hypoglycemic effect, which was manifested by a decrease in the content of glycosylated haemoglobin in the blood and prevailed over the effect of the comparative drug metformin and "Gliphasonorm" tablets.
«Glyphasolin» capsules and «Glyphasonorm» tablets based on bioflavonoid complex from bean show promise in the treatment of type 2 diabetes on the background of obesity and reducing the risk of micro- and macroangiopathy
Features of metacognitive beliefs of adolescents with a high level of personal anxiety
Authors: Sereda Olena 
Published: January 2023

The article contains an analysis of the problems of personal anxiety among adolescents. Anxiety is considered as a property of the personality, which is manifested in the cognitive aspect, emotional reaction, physical reaction and behavior of the individual. The general purpose of the study was to identify the metacognitive beliefs of adolescents with a high level of personal anxiety and was realized thanks to the implementation of such tasks as: identifying adolescents with a high level of personal anxiety, studying personal attitudes towards symptoms, determining and comparing the metacognitive beliefs of adolescents with different levels of personal anxiety, determining predictive power of metacognitions of young people with a high level of personal anxiety.
The results of a study of the prevalence of reactive and personal anxiety among adolescents are presented, a comparative analysis of one's own opinion regarding the presence of symptoms and test results of adolescents with a high level of personal anxiety is carried out. A new approach to the study of personal anxiety from the perspective of metacognitive beliefs is proposed, which is built on the principles of cognitive-behavioral psychology. Metacognition is defined as the basis of automatic thoughts, emotional and physical reactions, and the role of metacognitive processes in the interpretation of information about the level of security, the formation of judgments, assessments. The article proves that the metacognitions of adolescents with a high level of personal anxiety deprive them of flexibility in behavior, limiting the variability of life experience. The metacognitive portrait of young people with a high level of personal anxiety is characterized, in particular: the belief that anxiety is a protection against difficult emotions in anticipation of negative events; a positive attitude towards one's own anxious experiences is reinforced by a desire to prevent negative outcomes. As a result of the conducted research, the prospects for developing a method of targeted psychological influence within the cognitive-behavioral approach have been opened
Developing a prototype of fire detection and automatic extinguisher mobile robot based on convolutional neural network
Authors: Saif Amin , Muneer Gamal , Abdulrahman Yusuf , Abdulbaqi Hareth , Abdullah Aiman , Ali Abdullah , Derhim Abduljalil 
Published: January 2023

The object of research is a prototype of fire detection and automatic extinguisher mobile robot based on convolutional neural network. Within the recent few decades, fires are considered as one of the most serious disaster that occurs in many places around the world. The severity of fire incidents causes damages to buildings, infrastructures and properties. Resulting losses of human’s life and costs them a lot of losses. Thus, fire poses a great threat to us significantly; it is extremely dangerous for fire fighters. Fires can be resulted by materials such as rubber and chemical products. Other sources of fire are the short circuits on electrical devices and faults in power circuits. Additionally, overheating and overloading problems can be the cause of fire incidents. All these reasons lead to bad consequences when there is no immediate response to such problems. The advent of computer vision technology has played such a significant role for human life. Artificial intelligence field has improved the efficiency and behaviors of robotics beyond expectations. The interference of artificial intelligence made robotics act intelligently. For this reason, in this paper we presented a mobile robot based on deep learning to detect the fire source and determines its coordinate position then automatically moves toward the target and extinguish fire. Deep learning algorithms are the efficient ones for object detection applications. CNN model is one of the most common deep learning algorithms which have been used in the study for the fire detection. Due to the insufficient amount of datasets and large efforts required to build model from scratch. MobileNet V2 is one of the CNN models that support transfer learning technique. After training the model and testing it on 20 % of the used datasets the classification accuracy achieved up to 98.01 %. The motion repeatability of the robot has been implemented and tested resulting mean error 0.648 cm.
Modelling Yield Response and Water Use to Salinity and Water Relations of Six Pepper Varieties
Authors: SEMİZ Gülüzar Duygu , ŞENTÜRK Cansu , YILDIRIM Ahmet Cengiz , TORUN Elifnaz 
Published: January 2023

Better understanding of crop yield response under salinity and water deficit conditions is essential to meet food need under the circumstance of population growth and climate extremities. It has been well known that plant species response differently under stress conditions. Recent studies show that these different responses occur not only among species but also in different varieties within the same species. The aims of the study are to examine and to compare yield, yield response factors (ky), salinity thresholds, biomasses, and water productivity responses of six varieties of pepper plant (Sürmeli-Hot, Yalova, BT016-Hot, BT 016, BT Ünsal, BT Demok) under salinity conditions. In another experiment under the same conditions (location, time, growth media etc.), water deficit was applied to two of these six varieties (BT Ünsal and BT Demok) separately, and their responses to salinity and water deficit conditions were compared. The experiment was carried out in containers. The amount of irrigation water was determined manually by weighing each container. Water deficit treatments were consisted of meeting 120, 100, 70 and 50% of soil water depleted from field capacity. Water salinity levels were 0.25 (control), 2, 4 and 6 dS m-1. There was no difference in yield under non-stress and excessive stress conditions, but the yield difference was as high as 38.9% under moderate stress conditions. Varietal differences were also observed for water productivity. Salinity threshold values vary between 0.89 and 1.83 dS m-1. Yield response factor (ky) were high for all varieties under salinity. Comparing the ky values obtained under water deficit and salinity experiments, sensitivity to salinity induced water stress was found higher than that of applied water deficit itself. Using salinity (Model 1) and water deficit (Model 2) data set of two varieties, two models were created plotting relative yield and water potentials (osmotic potential + matric potential) and compered their predications statistically. Statistically better predictions were obtained from Model 2.
Influence of CEO Human Capital and Behavioral Characteristics on Economic Profit of Russian Companies
Authors: Nazarkina Vera , Gostkov Dmitrii , Lapteva Anastasia , Kniazev Vladislav , Ivashkovskaya Irina 
Published: January 2023

We investigate how different personal traits of a chief executive officer (CEO) influence value creation in one of the largest emerging capital markets in Russia. Our research model considers several components of human capital of a CEO.
Moreover, we include CEO’s behavioral biases looking at overconfidence measured by industry adjusted ratio of capital expenditures and narcissism captured by the analysis of CEO’s photos following previous academic research approaches. The CEO power is applied to understand its impact over value creation and possible mitigating effect. Our sample consists of 111 Russian publicly traded companies and 235 CEOs for 8 years (from 2013 to 2020). We apply economic profit criteria to measure corporate performance with economic value added (EVA) which captures the spread between actual return on capital derived from financial reports and overall cost of capital based on the risks of a company collected from Bloomberg .
We use first-order differences in company’s contribution to EVA after adjustments to the industry and overall market contributions to EVA for the sample. We find empirical evidence that CEO’s human capital affects value creation measured by first-order differences to industry adjusted EVA yearly. Furthermore, the CEO power has positive impact over value creation in Russian corporations while behavioral biases such as overconfidence ad narcissism do not have significant relationship with the changes in EVA.
Effect of fullerene C60 admixture in paraffin wax on the refractive index and phase transition temperatures
Authors: Hlek Ya , Ivchenko D. , Khliyeva O. , Zhelezny V. , Zheliba Yu. 
Published: January 2023

The paraffin wax (PW) utilized as a phase change material is promising for thermal energy storage systems. However, the application of this material is limited by itslow thermal conductivity. The fullerene C60 adding in PW can help to eliminate this problem.Therefore, the system PW/C60 is promising for studying its properties.
The results of an experimental study of the refractive index of solutions of fullerene C60 in PW of 52...54 °C melting point at the ranges of С60content of 0...0.052 wt. %and temperatures of 41…65 °С are presented in the study. The complex character of the concentration dependence of the refractive index on isotherms for the studied thermodynamic systems has been registeredboth in liquid and solid phases.Data on the effect of the C60 content in PW on the temperatures of the start and finish of its phase transition is presented. At C60 content in PW of 0…0.01 wt. % the temperatures of the start and finish of the phase transition decreased, at C60 content of 0.01…0.04 wt. % they increased more than the pure PW temperatures and at C60 content more than 0.04 wt. % they decreased again.
The obtained effects of a decrease and increase in the refractive index on the isotherms and temperatures of start and finish of PWcrystallizationcan be explained by structural transformations in PW caused by C60 presence. In the authors' opinion, the reason for the extreme behavior of concentration dependence of the refractive index of objects of study is the effect of C60 on the density fluctuations and the quasi-crystalline structure of the liquid and solid phases.These structural transformations in PW cause a similar change inthe concentration dependencies of the temperatures of the start and finish of the phase transition of objects of study.
Physical aspects of fire and explosion hazard of combustible dust. Part 1.Ignition
Authors: Bulanin F.K. , Nimich A.V. , Oparin A.S. , Sydorov A.E. , Shevchuk V.G. 
Published: January 2023

Based on the fundamental combustible systems properties - distributed nonlinear energy sources and flow connection between the environment elements - an analysis of various combustion dust modes is presented. Depending on the ratio betweencharacteristic burning times (thermokinetic characteristics) and heat transfer (scale characteristics), limiting modes are considered as self-ignition, diffusion combustion and auto-wave combustion. Unlike gases, for dusts all the characteristics of ignition and combustion essentially depend on the internal system scales - particle sizes and distances between them. In presented part of the study, the critical ignition temperature dependences and the ignition delay time on all physicochemical dust parameters are analyzed. It is shown that these characteristics for various fuels can be described in a unified way, based on the laws of oxidation (linear and parabolic), with the systematizing parameterfbeing the ratio of the solid fuel reaction surface to the external heat exchange surface.
Taking into account the parameter f, which is the ratio of the dust reaction surface to the external aerosuspensionheat exchange surface of the dust, the critical ignition conditions are obtained in the form of a criterion similar to the single particles ignition. It is shown that it can be used for dust with both a linear and a parabolic oxidation law. Different fuels react in the same way to a change in f, which does not contain fuel characteristics and reflects thedustheat accumulation capability. Thus, the ignition temperature is a linear function of 1/lnf, and the induction period is 1/f.
The ignition temperature and ignition delay time are not physical or chemical, but are relativedust activity properties in relation to the their ignitionprocess. After all, they depend on the size of the reaction vessel.
LINGUOCULTURAL FEATURES OF PHRASEOLOGIES ON THE SYMBOLS OF EXCITEMENT IN THE UKRAINIAN AND RUSSIAN LANGUAGES
Authors: BASHKIROVA Natalya P. 
Published: January 2023

The article reveals the national and cultural specificity of phraseological units for excitement in the Ukrainian and Russian languages. The purpose of this work is to determine the national and cultural features of Ukrainian and Russian phraseological units (PhU) for the designation of concern, excitement, worry, anxiety based on the specifics of customs, beliefs, and everyday life that are reflected in them. The object of the study is Ukrainian and Russian phraseological units for the designation of concern, excitement, worry, anxiety. The subject of the study is the presence / absence of nationally and culturally specific features of Ukrainians and Russians in the display of such PhUs. As a result of comparative analysis of the similarities and differences of the PhU of this phraseological microsystem in the Ukrainian and Russian languages, based on the structural-grammatical, semantic and functional features of the PhU in each of these languages, as well as the use of selection criteria and the appropriate method of researching the material, it was found that they are equivalent, close or similar and non-equivalent Ukrainian and Russian equivalents of phraseological units denoting concern, excitement, worry, anxiety. Conclusions are made about the presence of equivalent, non-equivalent phraseological units and analogous phraseological units in the Ukrainian and Russian phraseological systems.
OLD ENGLISH COMPOSITA WITH leōd, liud IN STRUCTURAL AND CHRONOLOGICAL TERMS (AGAINST GERMANIC BACKGROUND)
Authors: Iliadi Alexander 
Published: January 2023

Summary. The paper focuses on the study of historical-linguistic research of OE anthroponyms-composites with Anglo-Saxon leōd, liud. The topicality of this paper is determined by a lack of attention to research in field of Old English historical anthroponymy. The purpose of study is the description of structural types of anthroponymic composites with component leōd, liud. The object of the research is Nomina Personalia nouns, taken from Anglo-Saxon monuments of V–X cent. AD, which are formed by the way of compounding. Morphological and lexical-semantic peculiarities of OE proper nouns, and their common nouns counterparts, as well as reconstructed Proto-Germanic prototypes constitute the subject of the investigation. As a result of our research, structural types of Anlo-Saxon anthroponyms with liud / leōd are described; Relative Chronology of analysed compound proper names is defined, which determined reconstruction of Proto-Germanic prototypes for oldest anthroponymic compounds; morphological and semantical peculiarities of Anglo-Saxon dithematic anthroponyms are highlighted. Conclusions. Old English reflexes of Proto-Germanic *leuði- in anthroponymic composites are attested only as prepositive determinatives with a postpositive defined word. *Leuði- belongs to the nuclear components in the Proto-Germanic system of creating dithematic names. Old English testifies to the loss of reflexes *leuði- the ability to be a definable member in innovative anthroponymic composites and, possibly, the loss of the Proto-Germanic anthroponymic heritage with traces of their post-positive usage. The ratio in the pair «Old English innovation VS Proto-Germanic archaism» for names with liud/leōd is 4 : 28 units. According to the morphological classification of Old English and Old Sahson composites, their oldest layer shows the determinative and possessive specificity of the combination of parts with a small number of cases of coordination of exponents. Perspectives for further research is to uncover the system of structurally and etymologically identical dithematical anthroponyms in onomastic vocabulary of Slavic and Baltic languages and comparative analyses of their cultural semantics.