bluuebunny/crossref_metadata_2025 huggingface dataset:
Anthropogenic impact on the shores and the bottom of the Jebriyan bay in the Northwestern part of the Black Sea
Authors: Shuisky Yuriy D. , Vykhovanetz Galina V. , Organ Ludmila V. , Moto Mukete Theophilus N.
Published: December 2021

The Jebriyan Bay is located in the northern part of the Kiliya Danube Delta, at a junction of the delta cone and the indigenous coast. This is a zone of very high anthropogenic impact on the Danube Biosphere Reserve. The two opposite shores of this bay are fundamentally different. Along the northern shore, the Northwest coastal sand sediment flows discharge from the Cape of the Great Fontanne to the Jebriyan Bay. That is why the northern coast of the bay is made up of sandy forms of coastal topography (marine accumulative terrace and spit). The southern coast is deltaic; composed of a mixture of muddy, siltstone and sandy sediments. The area of the bay is limited to isobaths –11 m and is about 80 km2. The bottom of the bay has a gentle relief, made up of smooth outlines, with an average depth of 6.2 m. The shape of the transverse profile of the underwater slope is mostly convex. The natural system of the bay was affected by fishing, recreation, shipping and industrial sand production on coastal accumulative landforms. Coastal fishing uses a system of fixed bottom seines and small motorized floating equipment. Recreational facilities are designed to serve about 350 thousand people during the warm period each year. The impact of shipping was expressed in the construction and operation of the seaport of Ust-Dunaysk, together with suitable canal and the technical canal between the sea and the branch of the delta breakthrough the system of the large Ochakov branch. The ladle port had an area of about 1.5 km2, a maximal depth of 16 m, and an average depth of 13.7 m. The trough was connected to the Ochakov branch of the Danube Delta by a technical canal with a depth of 4 m. Vessels could enter the harbor of Ust-Danube through an access navigation channel with a depth of 11–12 m and a bottom width of 125 m. The port was used for the transshipment of large containers, general forest cargo from ocean vessels (displacement of 60–100 thousand tons) on regular sea lines from the countries of Southeast Asia to the Black Sea, to the Danube and further to the countries of Central Europe and to the ports of the North and the Baltic Seas. But it was unfortunate that the port construction site did not last as expected. Between 1980–2010 the harbor and approach canal of Ust-Dunaysk were filled with Danube river sediments. The example of Jebriyan Bay has shown that when executing any type of sustainable nature management project, it is very important to take into account the natural milieu.
Methodological principles of systematics of recreational goods
Authors: Topchiyiv Alexandr G. , Sych Vitalii A. , Yavorska Victoria V. , Kolomiyets Kateryna V. , Hryhoriev Alexander V. , Hevko Ihor V.
Published: December 2021

The article presents an overview of modern directions and approaches to systematics of recreational resources (goods). The purpose of our study is to develop methodological principles of systematics of recreational goods, taking into account their subject specificity and modern research approaches to the systematics of natural, historical, cultural and socio-economic conditions and resources. The article has been used development by domestic and foreign scientists, as well as preliminary author’s studies. Working-out of a scheme of recreational goods systematics took place on the basis of a dialectical approach, which requires all phenomena and processes in their development, interconnection, and interdependence. The article presents an overview of modern directions and approaches to the systematics of recreational goods and provides a general methodological scheme of systematics of recreational goods. The proposed scheme includes the division of recreational goods to natural, cultural and historical and socio-economic, as well as directions of use by recreational goods – public, collective and personality. The intersections of these categories are marked by the main methodological approaches to the evaluation of recreational conditions and recreational resources. For each direction of the classification and systematics of recreational goods, it is necessary to develop methodological principles and methodological means of inventory and assessing the corresponding combination of recreational conditions and resourceswith forms of use by recreation goods. Such justification also requires enclosed blocks of recreational conditions and resources and social varieties of use. Recreational conditions and resources of public usage are available for all users without restrictions of property rights; they are considered as global civilization goods as the “property” of the world community; they do not have the content of the goods and do not form appropriate market relations, as a rule, a global or regional spatial scale. Recreational conditions and resources of collective usage form natural and geographical objects and phenomena with different forms of ownership (state, corporate) and collective (group) use. They can be shared by common goods, do not have a form of commodity and not take part in market commodity- money circulation. Recreational conditions and resources of individual usage are private or group property of vacationers. They remain outside the economic assessment, but can also form their market environments with competitive relations and be objects of commodity-money circulation.
EFL Learners’ Formulaic Language Use in Writing: an Action Research Account
Authors: Vildósola Campos Marcela Soledad , Sanhueza Campos Cristian Hernán , Sáez Carrillo Katia Lorena
Published: December 2021

The present study exemplifies an action research-based approach for addressing the extent to which a process of explicit instruction of formulaic language supports the use of this type of vocabulary in middle school students’ short narrative written texts. The study was conducted at a private school in Chile, as a plan to help learners use different forms of expression in a written format. Data were obtained from a group of 23 Spanish-speaking learners of English before and after the intervention period. The action research methodology was implemented in order to collect and analyse written compositions as well as a survey for evaluating the treatment from the students’ perspective. The observation and reflection process led to positive outcomes in relation to the use of formulaic expressions in writing, and students’ opinion about the process also proved favourable. The pedagogical innovation is reflected upon theoretical and pedagogical perspectives. Implications applicable to teachers working in this and other contexts are also considered.
Discovery Learning Model on Mathematics Learning at Islamic Private Junior High School Darussalam
Authors: Syafti Okviani
Published: December 2021

The study aims to determine whether the mathematics learning outcomes of students who learn discovery learning are better than students who learn conventionally. It also aims to find out whether the mathematics learning outcomes of students with high initial abilities and low initial abilities with discovery learning are better than students who learn conventionally. This type of research is a Quasi Experiment with quantitative approach design and used was a randomized control group only design with treatment by blocks. The population in this study were students of class VII  Islamic private junior high school or MTsS Darussalam Ampiang Parak, Sutera Sub District, Pesisir Selatan. The research sample was randomly selected,namely students of class VII.1 as the experimental class and VII.2 as the control class. The research data were obtained from the results of the initial ability test and the final test given after the experiment was carried out. Data analysis using t test.The results of the analysis show that: 1) The mathematics learning outcomes of students with discovery learning model are better than those taught by conventional learning, 2) Mathematics learning outcomes of students with high initial abilities and students with low initial abilities with discovery learning learning models of learning arebetter than students with high initial abilities. taught by conventionallearning. The results could be a solution for teachers to provide learning to develop students' ability invention, especially in the discovery of mathematical concepts and problem solving both in learning and in daily life
Improving Reading TOEFL Score through Note Taking Strategy
Authors: Ismail Nyak Mutia , Fata Ika Apriani
Published: December 2021

There are still a number of less skilled readers in higher degree education where academic texts are staple needs (Hellekjaer, 2009). This study investigated a technique to help students increase their reading ability in TOEFL reading section. A technique named Notetaking technique was implemented during two cycles of classroom action research. There were 3 meetings for each cycle. The participants were 17 Economics students who are taking TOEFL Preparation course at Universitas Syiah Kuala, Aceh, Indonesia. The result from cycle one showed no increase since the average only incline to 38.58. Then in cycle 2, there was a significant increase reaching 45.11 (which is the minimum TOEFL standard for the university). It can be deduced that this technique might not be appropriate for large classes as it demands individual assistance. Besides, a good skill of organizing information is fundamental in this strategy to maximize the students’ effort in answering the TOEFL questions during the test.
Explored Jordanian Math Teacher’s Practices, and Belief Change in implementing mobile applications in education
Authors: Alzubi Khaled Ahmed Aqeel
Published: December 2021

The aim of This study explored Jordanian math teachers’ beliefs, practices, and belief change in implementing mobile applications in education Learning mathematics is a major focus of educational institutions at all levels and technology has long been an important teaching tool in the field of mathematics. Multiple sources of qualitative data were generated including metaphors, lesson plans and interviews with 17 math teachers. Although teachers considered Implementing mobile applications in education as an effective method that benefit student learning and they demonstrated progress in changing their beliefs moving from subject to didactic dimension through Implementing mobile applications in education, their practices remained partially aligned with their perceived belief changes. This discrepancy could be attributed to several encountered challenges, including teachers’ lack of confidence, difficulty in facilitating student collaboration, structural constraints, additional workload, and the lack of school and peer support. Results suggest the need for different types of “problems” and approaches such as more direct instruction, and higher feasibility in teachers’ autonomy when Implementing mobile applications in education. Outcome of this study has a few implications. First, discrepancy between belief and practice of implementing mobile applications. identified in this study suggests that appropriate and sufficient professional development activities are needed. The MOE and schools in Jordan should further articulate policy goals and standards that facilitate student-centered approaches for teachers. System and institutional supports such as reducing teachers’ workload, providing sufficient time for students’ activities during implementing mobile applications. sessions and for teachers’ collaboration, and involving both students and teachers in defining.
Reconstruction of Islamic Institution Education the 21st Hopes, Challenges, Paradigms, and Roles of Arabic
Authors: Asril Zainal , Hanafi Abdul Halim
Published: December 2021

This research aims to describe the problems are how the position, condition, standardization, accusation, and protection of Islamic institutions higher education to services customer’s or student in Indonesia and how is learning system and developing science in this age and challenges facing Islamic institution of higher education and the expectations and strategies to deal accretion. The method uses library research, observation to document, literature, discussion, and interview with experts about LPTI. The research finding is the 21st century is the age globalization. It takes to impact on interdependencies, competition, and advances in science, information and communication technology on institution of Islamic higher education. Interdependention describe the something happened in a country correlated with other country. This condition has to change of paradigm at management of institution higher education that the society make it is corporate has to protects and the best accusation and quickly services to customers. The conclusion are (1) the expectation that Islamic higher education must remain firm lying to the main foundations, the Qur'an and Hadith, and pay attention to and strengthen the teaching of Arabic and must be able to prove the truth of the foundation in human/community life and in addition to (2) Islamic higher educational must enter the official level of quality standards, and in the end (3) Islamic higher education make themselves as higher education research that aims to change the real (research to cange of emancipartory). It can be done from simple ways
Transformational Leadership: Principal Intellectual Stimulation In Improving Teacher Competences
Authors: Sholeh Makherus
Published: December 2021

Various efforts have been made to improve teacher competence, but there are still many institutions that have not optimized teacher capacity development. This study examines the intellectual stimulation of principals in improving teacher competence in two favorite institutions in the East Java region of SDI Qurrota A'yun Tulungagung and MI Perwanida Blitar. This study uses a qualitative descriptive method with a multi-case study design. Data were collected through 16 teachers and one school committee, one student guardian, one community leader, and one employee determined by random purposive sampling. Information was obtained through interviews, documentation, and observation. The results of this study indicate the role of leaders in forming various teacher competency improvement programs; (a) Program in-service education. The leader delegates teachers to improve professional and pedagogical competencies, which consist of advanced study programs, equivalency studies, Teacher Professional Education (PPG), (b) Program in-service training. Leaders delegate teachers to improve pedagogical and professional competencies through training activities, seminars, workshops, and webinars. (c) Leaders conducted program on-service training as a facility to improve teacher competence, (1) Supervision Activities and Teacher Working Groups (KKG), (2) teachers are actively competing, (3) actively writing papers, (4) collaboration activity, (5) social service activities, (6) religious activity (7) Job rotation, (8) Curriculum integration according to the institution's development distinction, (9) Technology-based learning.
Developing Jurisprudential Inquiry Based Learning Model of Teaching Fiqh at Madrasah Tsanawiyah
Authors: Rahmiati Rahmiati , Zubir Muhammad , Kamal Muhiddinur , Rezi Muhamad , Arriafdi Muhammad Zainuddin Bin
Published: December 2021

Learning is the most significant activity in education. Through learning activities, the goals of education are achieved. Students’ success in learning mostly depends on their mastery to learn independently and on how they manage their study. The research aims to develop learning model at Madrasah Tsanawiyah, to make the learning process triggers students to be more creative and study better. The method used in the research refers to the nature of Research and Development. The steps of the study are preliminary study, development, and product test. The study found that the development of a jurisprudential inquiry-based learning model for learning Fiqh helps students to improve their learning outcomes. The model has significantly proven effective to support students’ behavior change, thus their achievement increases.
Recurrent hemoperitoneum due to aneurysm of the left hepatic artery. Even "Ockham's razor" can fail
Authors: Redruello-Guerrero P. , Vasserot-Vargas F.J. , Álamo-Tomillero F. , Cárdenas-Cruz A.
Published: December 2021

The infection of Klebsiella variicola constituted a high morbility and mortality disease in the most of its guest. It is tended to be associated with a septic shock which required an intensive treatment most of the times. The pathological mechanisms are not well-defined. A correlation has been made between this clinical case and one likely pathogenicity factor, which could explain these rates. We present the case of a male patient who presented to the emergency department with a septic shock. The patient eventually developed an hemoperitoneum by the aneurysm of the left hepatic artery which is very unusual.
Rhabdomyoma of the parapharyngeal space
Authors: Acosta-Vásquez C. , Uceda-Carrascosa L. , Leiva-Cepas F. , Rodríguez-Pérez L.
Published: December 2021

Rhabdomyoma is a benign tumor that comes from skeletal tissue, it is classified as cardiac and extracardiac according to the location. Extracardiac rhabdomyomas most frequently originate in the head and neck at the larynx and pharynx, being the parapharyngeal space an exceptional location.
We present the clinical case of an 86-year-old man asymptomatic patient with a laterocervical mass with years of evolution, that has increased its size progressively, with dysphagia and dyspnea on exertion in the last years. CT and MRI were requested, which provided dimensions, location at the parapharyngeal space, as well as signs of benignity. The FNA results indicated that it was a mesenchymal tumor. After cervicotomy and histological study, the diagnosis of parapharyngeal space rhabdomyoma was confirmed. We conducted a bibliographic review of this extremely rare benign tumor at the head and neck level.
Rieger anomaly and Axenfeld-Rieger syndrome: a rare anterior segment dysgenesis
Authors: Lacorzana J. , Rocha-da Silva R. , Sánchez-García J.D. , Rachwani-Anil R. , Martínez J.D.
Published: December 2021

Axenfeld Rieger Syndrome is anterior segment dysgenesis characterized by posterior embryotoxon and dysgenesis of the anterior chamber. Developmental abnormalities of the anterior angle cause increased resistance to outflow. Ocular hypertension is a complication in almost 50% of the cases. It is an autosomal dominant disease and its prevalence is between 50,000 and 100,000 newborns per year. The main associated affected genes are FOXC1 and PITX2, occurring in 40% of the cases. Axenfeld Rieger Syndrome can be associated with systemic manifestations such as dental anomalies (hypodontia and microdontia), facial anomalies (maxillary hypoplasia, telecanthus and hypertelorism), redundant paraumbilical skin, hypospadia, auditory and cardiac alterations. Within this syndrome, we distinguish different phenotypes, being the Rieger anomaly the one with least systemic affectation. We present three cases in different stages of the disease, which allow us to understand the development and management of this disorder.
For which reasons are newborns brought to the emergency department?
Authors: Heppe-Montero M. , Martínez-Sánchez E. , Olivas-Monteagudo F. , Quesada J.A. , Aleixandre-Blanquer F.
Published: December 2021

Objectives: Compare what sanitary and socio-demographic factors present the newborns that were attended in the hospital emergency room in regard to the newborns who don’t visit the hospital during their first month of life.
Methods: A retrospective observational case-control study was performed, considering as cases those neonates who were brought to the hospital emergency department during their first month of life, matched with control of their same sex and age, born in the hospital but that hadn’t visited the emergency room.
Results: 15.15% of the newborns were brought to the hospital emergency department during the year of the study. The main risk factors associated with the visits to the emergency room were: Unemployment, self-employment, and the mother’s younger age. The main reasons why the newborns were brought were: Phisiological phenomena of the newborn (17.4%), upper respiratory infection (13.4%), and colic or crying (12.8%).
Conclusions: Newborns can manifest a wide variety of symptoms and signs that, due to their non-specificity, generate anxiety in their parents and can generate numerous visits to the emergency services, with a higher probability of hospitalization due to their young age and the physician’s caution, rather than due to severity of the illness.
Implementation of E-Government through the Samsat Mobile Jawa Barat at the Regional Revenue Agency of West Java Province
Authors: Hakim Rohman , Umam Khaerul , Anwar Husen Saeful
Published: December 2021

The purpose of this study was to analyze the application of e-government through Samsat Mobile Jawa Barat at the Regional Revenue Agency of West Java Province. The theory used in this study uses e-government theory which includes (1) content development, (2) competency building, (3) connectivity, (4) cyber law, (5) citizen interface, and (6) capital. The research approach used is a qualitative approach. Data collection techniques by interview, observation and documentation. The data analysis technique is based on Creswell's thinking with a bottom-up hierarchical approach model. The results of this study indicate that the implementation of e-government through Samsat Mobile Jawa Barat in the Regional Revenue Agency of West Java Province has been running quite well. Although based on Idrajati's e-government theory, there are several criteria that need to be improved. Such as content development criteria that still do not provide an iOS-based Samsat Mobile Jawa Barat application, competency building criteria have not yet produced employees who are experts in managing the appearance of the Bapenda West Java website design and content. The connectivity criteria are good because they are in the West Java region. Cyber law criteria must be added specifically, because it only follows the rules of the central government, the citizen interface criteria still need to be developed because it only has two channels, namely the website and the android application. While the criteria for capital is sufficient, it only needs additional sources of capital apart from the APBD.
Corpus, Discourse and Mental Health By D. Hunt and G. Brookes (2020)
Authors: Bacchini Simone C.
Published: December 2021

Corpus, Discourse and Mental Health By D. Hunt and G. Brookes (2020) London: Bloomsbury, 288pp.
The Power of Language: How Discourse Influences Society (Second Edition) By L. Young, M. Fitzgerald and S. Fitzgerald (2018)
Authors: Evans Mel
Published: December 2021

The Power of Language: How Discourse Influences Society (Second Edition) By L. Young, M. Fitzgerald and S. Fitzgerald (2018) Sheffield: Equinox Publishing, 381pp.
‘Norwegian-Somalis are best suited to inform Norwegian-Somalis’
Authors: Radanović Felberg Tatjana
Published: December 2021

The strategic contingency plans on all levels in Norway include references to possible needs for translating and adapting information flow into other languages. However, the situation at the grassroot level shows that these measures have not been considered an essential service. Valuable time passed during the first wave of COVID-19 until different public actors figured out their responsibilities and before the information was translated, adapted, and given, via appropriate media, to the beneficiaries. This article analyses actors and actions in eight online articles published by the Norwegian Broadcasting Corporation, NRK, focusing on crisis communication, and linguistic diversity in Norway during the initial period of the COVID-19 pandemic (March–June 2020). The analysis shows that the pandemic becomes a magnifying glass on the society uncovering social challenges like lack of trust in the authorities, stigmatization, and social inequality.
Powstanie placówek duszpasterskich u schyłku okresu galicyjskiego na przykładzie parafii Budziwój koło Rzeszowa
Authors:   Uniwersytet Rzeszowski, Polska, Nabywaniec Stanisław
Published: December 2021

The article illustrates the process of creating new pastoral centers in the Przemyśl diocese, based on the village of Budziwój. After the stagnation in Galicia at the turn of the 19th and 20th centuries, with the favorable state policy and the pastoral zeal of the Galician episcopate, some dioceses developed rapidly. The greatest commitment was shown by the Archbishop of Lviv, Józef Bilczewski and the Bishop of Przemyśl, Józef Sebastian Pelczar. They created appropriate materials as well as canonical and legal background, and changed the mentality of their clergy, who began to see the need to tighten the parish network. The study shows the enthusiasm of the believers and the younger clergy, as well as the resistance of some older generation clergy rooted in the Josephine system of thought and action.
Polacy w Baden na przełomie XVIII i XIX wieku w świetle wybranych austriackich źródeł archiwalnych
Authors:   Uniwersytet Warszawski, Polska, Wdowik Agata
Published: December 2021

The article summarizes the 2020 query in the archives of Vienna and Baden. Its subject was Poles who came to Baden at the turn of the 18th and 19th centuries. It included: Stadtarchiv Baden, Österreichisches Staatsarchiv (Vienna), the archives of the City of Vienna, Diözesanarchiv Wien, and materials available in the “Wiener Zeitung”. Over 400 names of Polish travelers to Baden have been established. The query proved that at the turn of the 18th and 19th centuries, the social status of Polish tourists was reflected, inter alia, in democratization of the phenomenon of travel spa resorts.
Ukraińskie dążenia niepodległościowe w czasie Wielkiej Wojny i po niej
Authors:   Politechnika Koszalińska, Polska, Partacz Czesław
Published: December 2021

The article deals with the issues of Ukrainian aspirations to autonomy, which during the Great War took the form of actions to regain independence. However, they were not successful because they were carried out in too many directions. In the years 1917–1921, it was not possible to build a Ukrainian state that would match the exorbitant ambitions of politicians. These aspirations encountered two conflicting political trends: autonomy-independence (nationalists) and pro-Russian (Old-Russian) ones. The provisions of the Versailles Treaty and the lost wars meant that Ukrainians became negotiators of the treaty and the new political order.
Ohne Flieger kein Sieg – Bez lotników nie ma zwycięstwa! Szkic z działań lotnictwa austro-węgierskiego i niemieckiego w przeddzień przełamania gorlickiego 1915 r. w świetle archiwaliów i literatury pamiętnikarskiej
Authors:   PWSTE w Jarosławiu, Polska, Olejko Andrzej
Published: December 2021

The study included in this volume presents the latest state of research on the subject of aerial- aviation operations over the Galicia Eastern Front, before the breakthrough operation in Tarnów- Gorlice in 1915. The above study is based on a little-known source base, shows the contribution of the air force to the plan of the Gorlice Breakthrough from 1915, which was not professionally developed with the use of the source database of both warring parties. Studies that appeared on the Polish book market in 2015 and 2018 do not fill this gap.
Krasicki w sanatorium. Dylematy oświeceniowego kuracjusza u wód (Baden i Wiedeń 1792–1793)
Authors:   Uniwersytet Warszawski, Polska, Wdowik Agata
Published: December 2021

The last decade of Ignacy Krasicki’s life is consistently marginalized in his biographies (in particular, his trips to spa resorts from the 1890s). The article shows that the proper context for in-depth research is Krasicki’s health, as well as the way he coped with reaching old age. The author analyzes three areas of X.B.W’s dilemmas: related to health, creativity and patriotism. The basis of the analysis of Ignacy Krasicki’s correspondence and a query in Baden and Vienna. The background is the historical landscapes and the functioning of the spa town of Baden and Vienna as important places on the European tourist route of that time.
Praktyczne aspekty ćwiczeń epizodycznych z zarządzania w sytuacjach kryzysowych w samorządzie terytorialnym
Authors:   Politechnika Rzeszowska, Polska, Barć Marek
Published: December 2021

The article presents the assumptions for conducting episodic exercises in crisis management in local government units together with the managing body (supervising the exercise), which is the Provincial Crisis Management Team.
Influence of the surface characteristics of corrugated cardboard on the quality of inkjet printing
Authors: Zorenko Oksana , Zorenko Yaroslav , Kupalkina-Luhova Iryna , Skyba Vasyl , Khokhlova Rozaliya
Published: December 2021

This paper investigates the quality of inkjet printing on corrugated cardboard with various characteristics such as the presence of surface coating, the type of cardboard structure, the corrugated layer profile, and the corrugated cardboard height.
The color characteristics of the corrugated board surface of studied samples were analyzed in the CIE Lab system; the value of the discrepancy in the shade of white was established when compared with the reference values of the ISO 12647 standard.
During the study, the main criteria for assessing the quality of color reproduction of inkjet imprints were analyzed: an indicator of the general contrast level (K), the value of color differences for the basic tone shades (ΔE), and the volume of the body color coverage (ΔE2).
It was found that when printing on various types of corrugated cardboard, there is a general decrease in the overall contrast value. The actual level of color differences is ΔE=10...45 and exceeds the permissible standards for the color reproduction quality. This adversely affects the reproduction of different color tones in the printed image. In general, the quality of color reproduction differs for the test samples of corrugated cardboard in terms of the magnitude of the spread in the values of color distortions on the tone shades.
The influence of the main characteristics of the investigated samples of corrugated cardboard on the quality indicators of inkjet printing has been analyzed. In particular, a significant influence of the index of color characteristics of the surface of corrugated cardboard L* and the type of corrugated board structure on the quality of color reproduction has been established.
The study results reported here could make it possible to reasonably approach the selection of the corrugated board structure that is optimal in composition, increase the productivity of the technological process for manufacturing containers, and stabilize the quality of printing on corrugated cardboard
Design of a roll crusher for sunflower stems and substantiation of the rational modes of its operation
Authors: Sheichenko Viktor , Volskyi Volodymyr , Kotsiubanskyi Rostyslav , Dnes Viktor , Shevchuk Misha , Bilovod Oleksandra , Drozhchana Olga
Published: December 2021

This paper reports a study of the technological process of grinding plant residues of sunflower and the causal relationships of factors that form the system of quality indicators. The necessary prerequisites for determining rational modes and parameters of the roll crusher have been devised.
A prototype of the roll crusher was designed and fabricated, in which the cutting knives are arranged along the entire width of the grip in a staggered manner, with the possibility to change the angle of inclination to the axis of drum rotation in the range of 5...20°.
It was established that in the case of the right-side arrangement of the cutting edge of knives, the highest total level of the percentage of crushed stems in the range of 101‒150 mm with an additional load weighing 800 kg exceeded by 1.58 times the corresponding indicators of the roll with an additional load of 600 kg. The largest overall value of the percentage of crushed stems in the range of 0‒200 mm when additionally loading the roll with 800 kg was 1.13 times higher than the corresponding indicators of the roll with an additional load of 600 kg.
In the range of 0‒200 mm, with an additional load on the roll of 600 kg, at the left-side arrangement of the cutting edge of the knives of the roll, higher total percentage of crushed stems was observed compared to the right-side arrangement. At a speed of 7.45 km/h, 13.6 km/h, the cumulative value of the percentage of crushed stems exceeded the corresponding indicators at the right-side arrangement of knives by 1.09 times, at the speed of 18.6 km/h – by 1.04 times, at the speed of 22 km/h – by 1.04 times, respectively.
It has been noted that at the left-side arrangement of the cutting edge of the knives of the roll, the percentage of crushed stems in the range of 51‒100 mm, with an additional load of 600 kg, exceeded the corresponding indicators with an additional load of 800 kg. At the speed of 10.08 km/h, it was exceeded by 1.9 times; at the speed of 13.6 km/h – by 1.44 times; at the speed of 18.6 km/h – by 1.96 times; at the speed of 22 km/h – by 1.99 times, respectively
Improving the methods for determining the index of quality of subsystem element interaction
Authors: Laktionov Alexander
Published: December 2021

It was proposed to improve the existing method of determining the quality of interaction of the elements of subsystems of the Machine Operator-Machining Center-Control Program for manufacturing parts (MO-MC-CP) system. This method combines estimates of social (machine operator), technical (machining center), and informational (control program for manufacturing parts) subsystems. Improvements were achieved through the use of four independent indices which are defined separately. One index takes into account single, double and triple interactions of integrated indicators where values of specific weight of weight coefficients depend on the sample size. The other three indices are a synergistic effect where the weight coefficients do not depend on the sample size. Therefore, the model of this index was modified at the expense of additional subsystems.
Existing approaches to determining the indices are not focused on the assessment of the quality of interaction of the MO-MC-CP system, have software limitations, and work with limited sample sizes. With this in mind, it was decided to improve the existing tools of determining the quality indices of interaction to assess levels of interaction of the subsystem elements.
The proposed software-implemented methods and the technology of index assessment improve the efficiency of the assessment of complex systems. Experimental verification has shown the superiority of interaction quality indices over those in the existing methods. A sign of efficiency is as follows: a smaller value of mean-square deviation of the proposed indices in comparison with the existing ones: S(ІQI1)=0.812; S(ІQI2)=0.271; S(ІQI3)=0.675; S(ІQI4)=0.57 and S(І)=0.947; S(І)=0.833; S(І)=0.594, respectively.
The results obtained in the study of the interaction quality index are useful and important because they make it possible to better assess the interaction of subsystem elements and apply the proposed technology at industrial enterprises.
Development of mathematical models and optimization of operation modes of the oil heating station of main oil pipelines under conditions of fuzzy initial information
Authors: Orazbayev Batyr , Moldasheva Zhadra , Orazbayeva Kulman , Makhatova Valentina , Kurmangaziyeva Lyailya , Gabdulova Aigul
Published: December 2021

The relevance of the study is substantiated by the fact that when managing the processes of oil transportation through main pipelines, it becomes necessary to determine and select the optimal operating modes of the oil pipeline units, taking into account the fuzziness of some part of the initial information. In this regard, solving the problem of multi-criteria selection of effective operating modes for an oil heating station for a hot oil pipeline system, which is often described in a fuzzy environment, based on the apparatus of fuzzy set theories, is an urgent scientific and practical problem. A method for the synthesis of models in the conditions of fuzzy output parameters of the object has been developed, with the help of which fuzzy models of the investigated oil heating station of the main oil pipeline have been built. Based on the modification and combination of various optimality principles, mathematical formulations of the problem of multi-criteria selection of effective operating modes for an oil heating station in a fuzzy environment are obtained. By modifying and adapting the principles of guaranteed results and equality in a fuzzy environment, a heuristic method has been developed for solving the formulated problem of selecting object's operation modes using the initial fuzzy information. The proposed heuristic method for multi-criteria selection in a fuzzy environment is based on the use of the experience and knowledge of the decision-maker. The proposed approach is implemented in the formulation and solution of the problem of multi-criteria selection of operating modes of the oil heating station in Atyrau of the Uzen-Atyrau-Samara main oil pipeline. As a result of the application of the proposed method, an improvement in the degree of fulfillment of a fuzzy restriction on environmental impact was achieved by 2 %, as well as the optimal values of the operating parameters of the object were improved: the temperature was reduced by 1.85 % (5.67 K), pressure – by 0.04 % (kPa) and fuel consumption – by 2.9 % (0.0002 kg/s). The obtained results have confirmed the effectiveness of the proposed approach to solving the assigned tasks.
Quality assessment of the contact center while implementation the IP IVR system by using teletraffic theory
Authors: Chezhimbayeva Katipa , Konyrova Madina , Kumyzbayeva Saule , Kadylbekkyzy Elvira
Published: December 2021

The paper considers the form of taking into account the specialization of information needs. An analysis of the work of modern call centers has been carried out. The authors noted the effectiveness of using IVR devices, operators, and consultants for differentiated customer service and the need to take feedback into account when forming the revenue stream of applications. The models make it possible to determine the leading indicators of the quality of service for applications arriving at the call center. Formal expressions for descriptions are derived from the input parameters' values and the model's stationary probability. The relationships between the characteristics of the call center that regulate the intensity of incoming and outgoing calls, call processing through 3CXPhone, corporate mail, and social networks were obtained using Global Statistic. The developed methodology for organizing information and reference systems makes it possible to consider modern trends in the development of call centers. The paper presents the results of research using the IP IVR system. The results of calculating service characteristics are given for two different types of calls with mixed order ω=(0.5; 0.7; 0.9). The presented results were obtained by using experimental data of the JSC Kazakhtelecom's call center. For the calculations, the authors used the formulas of the teletraffic theory for a mixed service system. It also assesses the extent of combined service model effects for the contact center's call quality. It is shown that the probability of lost calls depends on the incoming load. The obtained results show that the mixed order for incoming calls servicing affects the probability of service failure.
Determining the properties of chia seed meal gel
Authors: Strashynskyi Ihor , Grechko Victoria , Fursik Oksana , Pasichnyi Vasyl , Marynin Andrii
Published: December 2021

Potential areas of using chia seeds meal as part of mincemeat semi-finished products were substantiated. The modern stage of development of the food industry involves the expansion of the range of natural functional ingredients that improve the organoleptic characteristics of finished products and provide consumers with "healthy" food. This causes the use of new ingredients in the meat processing industry for producing and devising products.
The relationship between the indicators of emulsifying capacity, emulsion resistance, and the degree of hydration of chia meal was determined experimentally. It was found that the ability of chia meal to absorb and retain water and fat molecules in the emulsion composition decreased proportionally to a decrease in its concentration in the composition of hydrated samples. The existence of non-polar side chains of amino acids that get bound to fat molecules contributes to an increase in the indicators of emulsifying capacity and emulsion stability during heat treatment (70±2 °C) and after pre-freezing on average by 7–8.7 % and by 16–18.8 %, respectively.
Analysis of effective viscosity of the dispersed system of chia seeds meal indicates that in the area of a higher concentration, the viscous-elastic and solid-like behavior of the suspension depends on dynamic changes in the volume of the phase of particles. Heating the experimental samples to a temperature of 70±2 °C in the center leads to a maximum increase in viscosity of the formed dispersions. When studying the effect of the processes of freezing on the properties of the studied systems, the cryoprotective properties for the proposed additives were detected.
The obtained data indicate the thermal stabilization of the proposed additive, the ability to form a microgel structure in the finished product, and retain moisture during heat treatment of semi-finished products.
Determining heat losses in university educational premises and developing an algorithm for implementing energy-saving measures
Authors: Savchenko-Pererva Marina , Radchuk Oleg , Rozhkova Ludmila , Barsukova Hanna , Savoiskyi Oleksandr
Published: December 2021

This paper gives examples of the implementation of energy-saving measures in public premises. The introduction of energy-saving measures at enterprises significantly reduces the fixed component of industrial expenditures.
As a rule, educational institutions, for example, public premises, are financed from the state budget, and saving money on utilities will enable redirecting finances to the development of the university’s educational and scientific base.
Thus, the main purpose of implementing such measures is to reduce the cost of maintaining buildings.
The measures are divided into three stages. At the first preparatory stage, the problem elements of a building and communications, which require the introduction of energy-saving measures using a special Fluke Ti25 device, are identified. Problem elements of the building structure were determined by complete scanning of the ceiling, walls, and floor with the help of a thermal imager. A large (more than 10 %) difference between indoor air temperature and the temperature of the building element indicates a problem element. The research method is thermographic.
The study contains an example of scanning the wall of the premises. The temperature difference between the left and the right sides of the wall is 2.6 °C (the difference with the room temperature is 21 %). This indicates significant heat losses through the wall. At the second stage of information processing, measures to reduce energy consumption were determined. At the third stage of the introduction of energy-saving measures, the measures that directly affect the energy consumption of a building and effective functioning of communications were implemented.
The practical relevance of the study is to obtain results and practical recommendations that can be applied in practice to improve the energy efficiency of premises and buildings.
Improving the marmalade technology by adding a multicomponent fruit-and-berry paste
Authors: Samokhvalova Olga , Kasabova Kateryna , Shmatchenko Nataliа , Zagorulko Aleksey , Zahorulko Andrii
Published: December 2021

The necessity to optimize the nutritional value of marmalade by using physiologically functional ingredients containing vitamins, dietary fiber, minerals, and other useful substances in its composition has been substantiated. Specifically, using the multicomponent fruit-and-berry paste from apples, quince, black currant has been proposed, which is obtained by an improved technique. The technique is characterized by the rapid dehydration (30...45 s, at 50 °C) of the blended paste in a rotor plant to 28...30 % of dry matter. When studying the dependences of the effective viscosity of paste compositions on the shear rate, it was found that the paste that demonstrated the best indicators contained apple in the amount of 40 %; quince ‒ 50 %; black currant ‒ 10 %.
It has been experimentally proven that the rational amount of fruit-and-berry paste is 30 % with a decrease in agar by 30 %. This makes it possible to obtain the jelly-fruit marmalade on agar with a mass fraction of moisture of 18 %, a total acidity of 10 degrees, and a mass fraction of reducing substances not more than 28 %. The products have a sweet-sour taste, with a pleasant aftertaste and the smell of black currant, rich purple color, jelly-like form, and non-tight consistency. The strength of the new samples of marmalade with a decrease in the amount of agar is 18.9 kPa, similar to that of control.
The improved technology makes it possible to expand the range of "healthy products", which is achieved by the partial replacement of raw materials with a fruit-and-berry paste, which contains a significant number of physiologically functional components. This allows for an increase in the nutritional value of marmalade, as well as a decrease in the formulation amount of agar, which is expensive, by 30 %.
In addition, gentle concentration modes improve the process of paste making
Determining the effect of a multicomponent mixture on the quality of pastry products containing a mixture of germinated grains
Authors: Bilyk Olena , Kochubei-Lytvynenko Oksana , Bondarenko Yulia , Burchenko Liudmila , Fain Albina
Published: December 2021

A bun with a mixture of germinated cereals of wheat, oats, barley, and corn is an innovative product rich in dietary fiber, replaceable and essential amino acids, micro and macro elements, vitamins. In the process of germination, grains accumulate a large number of amylolytic and proteolytic enzymes, which worsen the structural and mechanical properties of the crumb of pastry products, as a result of which it becomes sticky and wrinkled. The experimental study reported in this work aimed to improve the organoleptic indicators and prolong the freshness of pastry products whose formulation includes a mixture of germinated grains.
The expediency has been proven of using the polycomponent mixture "Solodok" (Ukraine) in the amount of 3.0 % to the mass of flour in the production of pastry products in whose formulation 50 % of flour was replaced with a mixture of germinated grains. The application of the polycomponent mixture "Solodok" has a positive effect on the organoleptic and structural-mechanical properties of the product crumb. The composition of the polycomponent mixture includes safe food additives and ingredients such as ground cinnamon, dry wheat gluten, apple pectin, and ascorbic acid.
It has been proven that products with the addition of the polycomponent mixture retain freshness longer, which was confirmed by a lower rate of staleness, by 59.2 %, compared to control.
The stale processes in the case of using a polycomponent mixture are inhibited due to the greater accumulation of dextrins compared to control. Thus, the total content of dextrins in a pastry product is 1.668 % to DM (dry matter) while in the bun "Tsilyushcha", it is 2.443 % to DM.
The study results show the technological effectiveness of the use of the "Solodok" polycomponent mixture to slow down the staleness of products and provide products enriched with a mixture of germinated cereals with satisfactory consumer properties.