bluuebunny/crossref_metadata_2025 huggingface dataset:
USE OF THE REBURNING TECHNOLOGY WITH BIOMASS PYROLYSIS PRODUCTS AS A REBURNING FUEL TO REDUCE EMISSIONS OF NITROGEN OXIDES FROM TPP 312 BOILER
Authors: Kobzar S.G. , Khalatov A.A.
Published: June 2021

In Ukraine, a three-stage coal combustion system fueled by a natural gas as a reburning fuel for nitrogen oxides emission reduction was mounted on Unit № 4 of the Ladyzhyn TPP. This system was developed in cooperation with Combustion Engineering (USA), VTI (Russia) and the Gas Institute of the National Academy of Sciences of Ukraine and was assembled by the Ladyzhyn TPP staff in 1992. The test runs of this system had confirmed the effectiveness of this method of reducing emissions of nitrogen oxides into the atmosphere (up to 50%).Unfortunately, due to the high price of natural gas and the introduction of limits on its use, currently the use of natural gas as a fuel for reburning is impossible. One of the possible ways to reduce emissions of nitrogen oxides from the coal-fired boiler TPP 312 is the operation of Reburning technology with the biomass pyrolysis product as reburning fuel.

The aim of the work was to evaluate the possibility of the application the biomass pyrolysis products as a reburning fuel in Reburning technology to reduce nitrogen oxides from the coal-fired boiler TPP 312. For this purpose, a detailed computer model of a standard TPP 312 boiler and a TPP 312 boiler with a coal reburning combustion system was developed and built.

The study of the operation the Reburning coal combustion system, which is mounted on the unit №4 DTEK Ladyzhynska TPP, on the design parameters of the operation for the boiler load of 280 MWe was carried out. It was determinate that the supply of reburning fuel at 12% of the total heat capacity of the boiler gives a good level of the reduction of nitrogen oxides (up to 25%), provides no slag conditions for superheater pipes and does not lead to increase of the fuel losses with unburnt carbon.
DETERMINATION OF HEAT TRANSFER EFFICIENCY IN THE CONDITIONS OF FORCED CONVECTION FROM PIPES WITH SPECIAL RIBS
Authors: Kostyk S.І. , Shybetskyi V.Yu. , Plashykhin S.V. , Bykoriz Y.О.
Published: June 2021

Today, heat transfer processes are present in almost all technological processes of various industries. In heat exchange processes, shell-and-tube heat exchangers are quite effective and easy to manufacture, as the long-term practice of using these devices has shown. Therefore, intensification of heat transfer processes, improvement and development of appropriate equipment is a very urgent task. The object of research is a heat-exchange element with special finning on heat-exchange tubes. The subject of research is the heat transfer processes implemented in a heat exchange element with special finning. The aim of the study is to determine the efficiency of heat transfer of the finned surface of the heat exchange element under conditions of forced convection and to evaluate its efficiency by means of experimental and computer research. This article presents a computer simulation that allows to adequately assess the efficiency of using various designs of finning elements of heat exchange equipment. This is confirmed by the convergence of the experimental data and the results of computer simulation (the discrepancy between the results of the experiment and computer simulation does not exceed 5 %). Experimental and computer studies have shown that the proposed technical solution is more effective than standard ones and can be used in the design of new equipment or improvement of the existing one.
RESEARCH OF THERMAL CHARACTERISTICS ELECTRIC HEATING DEVICES
Authors: Demchenko V.G. , Konyk A.V. , Khomenko M.V.
Published: June 2021

In recent years, there has been a trend of transition from gas to electric heating, due to changes in the energy sector of the economy. Mass use of portable electric heaters allows to reduce fuel consumption by 25%, significantly reduce heat loss and negative impact on the environment. Electric heating is characterized by affordability, high efficiency, low costs of installation and maintenance, the ability to use preferential tariffs.

The purpose of the article is to analyze the technical and economic characteristics and efficiency of typical household electric heaters. The article contains an experimental study of the heat flux and heat of radiation of selected structures. The heat flux density was determined by the calculation method and in comparison with experimental data. Complex heat transfer is taken into account by calculating the heat transfer coefficient. Numerical and experimental study of the natural flow of convection in combination with radiation is carried out with each heated device in the laboratory.

A comparative analysis of the ratio of thermal characteristics to the cost and efficiency of devices. With the help of the author's method of "centers of mass" the comparison of qualitative characteristics of devices is carried out. As a result of the analysis it was established that the ALMAZ TERM Panel does not meet the set quality conditions, which requires further refinement of the design and technological indicators.

Studies show that it is possible to increase the efficiency of heating devices by increasing the consistency of the temperature profile, changing the radiation factor, optimizing the heat transfer surface of the device, as well as by integrating heat storages to store and improve heat distribution. In this case, the electrical energy is converted into heat and stored with subsequent use during peak hours.
LIFE CYCLE ASSESSMENT OF HEAT PRODUCTION FROM ENERGY CROPS
Authors: Tryboi O.V. , Zheliezna T.A. , Bashtovyi A.I.
Published: June 2021

The aim of the work is a life cycle assessment of heat production from energy crops by using energy yield coefficient and value of greenhouse gas emissions reduction. State of the art and prospects for growing energy crops in the EU and Ukraine are analyzed. Today, the area under energy crops in the EU and Ukraine is relatively small, but there is significant potential for the development of this sector, which requires further research and implementation of practical measures. Typically, the life cycle assessment of energy production from biomass includes a feedstock cycle, which begins with the phase of biomass collection, and a conversion subsystem. The main feature of the life cycle assessment concerning energy crops is including the phase of their growth in the feedstock cycle. Results of the study show that the energy efficiency of the life cycle of heat production from energy crops chips and pellets is quite high and meets the recommendation that the non-renewable energy yield coefficient should be at least more than 2. Reduction of greenhouse gas emissions during such a life cycle is 40-90% for a 500 kW boiler plant when transporting biofuels to the consumer at a distance of up to 500 km. Feasibility study of projects on growing energy crops and heat production from them shows that under the current conditions in Ukraine, such projects are on the verge of profitability and therefore may not be attractive enough for investors. To promote the development of this sector, it is recommended to introduce a state subsidy per hectare of a plantation area.
FORECASTING THE INTENSITY OF SOLAR RADIATION BASED ON ARTIFICIAL NEURAL NETWORKS
Authors: Basok B.I. , Novitska M.P. , Kravchenko V.P.
Published: June 2021

The paper considers short-term forecasting of the intensity of solar radiation in the city of Odessa based on an artificial neural network. The artificial neural network was trained on the experimental data of the ground weather station (Davis 6162EU), which is installed on the roof of the educational building of the Odessa National Polytechnic University. Modeling, validation, and testing of experimental data were performed using the MATLAB software package, namely Neural Network Toolbox. The Levenberg-Markwatt model is used in this work. The analyzed data set was divided into proportions of 70%, 15%, 15% for neural network training, its validation, and testing, respectively. The results which the trained neural network gave during forecasting within the framework of the database and outside it are given. The deviation between real and forecast data is analyzed. The root-mean-square error on December 26, 2016 was 13.03 W / m2, and on December 27, 2016 - 9.44 W / m2 when forecasting outside the database. Evaluation of the accuracy of an artificial neural network has shown its effectiveness in predicting the intensity of solar radiation. To predict parameters based on artificial neural networks, experimental data that describe a real system are needed. Artificial neural networks, like other approximation methods, have both advantages and disadvantages.
«RISK-PROFILE» OF THE TEST LABORATORY
Authors:   L. Pogoriliy UkrNDIPVT, Kravchuk V.I. , Korobko A I.
Published: June 2021

Goal of the study is to improve the laboratory management system. The substantiation of principles classification and assessment of risks are carried out. The mind-activity methodology is used. To achieve the goal it is necessary to determine the source of risk, assess a scale of selected risk impact, establish reference (control) points, assess the risk, develop and implement corrective actions. Research methods. The mind-activity methodology is the basic method for research. Application to the risk management process of testing laboratory activities. The results of the study. The levels of the hierarchy are determined by the level of consequences (low, high, medium) from the onset of a negative situation. The phases are determined by the type (category) of risk by the stage of its determination. Forecasted risks are determined by the method of forecasting for a certain future period of time (for example, the next calendar year). In fact, identified are risks that have been identified and are aimed at the short-term perspective of their emergence. Not detected - risks remain identified and arise from the implementation of inappropriate preventive measures. These risks are stipulated by the uncertainty of the input information in the analysis of risks and the inadequacy of measures to eliminate possible negative consequences. The proposed risk classification system makes it possible to compile a “risk profile” of the laboratory. The "Risk-Profile" of a laboratory is a conditional indicator that characterizes the laboratory's ability to possibly provide unreliable test results. Conclusions. The mind-activity methodology was used. Principles, classification and risk assessment method have been developed for the testing laboratory. This made it possible to establish the relationship between the level of risk, its source and the period of exposure, as well as to identify the most vulnerable elements of the management system at a given time and to find ways to improve and search for opportunities. The scientific value of the study lies in the substantiation of the principles classification and method of risk assessment of the testing laboratory. The practical value of the study lies in the possibility of forming a "risk profile" of the laboratory, provides objective information about the current state of the laboratory management system and indicates possible ways of improvement.
Technologies of Psychological and Pedagogical Influence in Working with Conflict Adolescents
Authors: Bogacheva Ekaterina Alexandrovna
Published: June 2021

This article raises and discusses the main issues related to the technologies of working in conflict situations in the adolescent environment. Speaking about the conflict in adolescence, it is worth noting that scientists agree that it is communication with peers that is most significant for a teenager and largely determines all other aspects of his behavior and activity, personal development. Consequently, disagreements in the peer group, the struggle for status leads to a conflict of the parties. In this regard, we decided to develop technologies of psychological and pedagogical influence in working with conflict adolescents. We have developed a model of consistent work of actions, which will be aimed at preventing conflicts in the adolescent environment, as well as the formation of their stress resistance, self-control and self-control.
Study of Self-Purification of Water Body Physical Mechanism as Part of "Complex Usage of Water Resources" Academic Subject
Authors: Birzul' Aleksei Nikolaevich , Pitilyak Dmitry Aleksandrovich
Published: June 2021

The article highlights the methodological issues of physical self-purification mechanisms of water bodies; they are closely related to the problem of protection and multipurpose water resources utilization. Methods of enhancing the physical processes of water bodies’ self-purification are described and considered to be included in lectures in construction educational institutions. Radioactive, mechanical, electromagnetic, and thermal mechanisms are characterized in detail. According to the authors, knowing of the physical mechanisms of self-purification will decrease the depletion of water resources and reduce their pollution.
Pengaruh Bermain Peran Terhadap Interaksi Sosial Anak Usia Dini
Authors: Bakri Annisa Rahmilah , Nasucha Juli Amaliyah , Indri M Dwi Bhakti
Published: June 2021

Guru memberi materi dengan metode ceramah, anak menerima materi dari penjelasan yang telah diberikan oleh guru, tugas yang diberikan berupa lembar kerja siswa dan buku kerja anak. Anak mencatat angka  atau huruf/kata tanpa menciptakan konteks belajar terlebih dahulu. Dalam hal ini, pendidikan akademik atau intelektual anak berkembang dengan baik karena mendapat rangsangan atau stimuslus yang besar, sedangkan untuk yang non akademiknya kurang mendapat rangsangan atau stimulus atau seringkali disepelekan sehingga interaksi sosial sesama teman menjadi kurang. Penelitian memiliki rumusan masalah yaitu bagaimana kemampuan interaksi sosial anak yang diajarkan dengan metode bermain peran dan adakah pengaruh bermain peran terhadap interaksi sosial anak usia dini pada kelompok A di RA Thoriqul Ulum Sajen, Kecamatan Pacet Kabupaten Mojokerto. Jenis penelitian ini adalah pre – eksperimental design dengan tipe one grup pretest–posttest dengan menggunakan teknik purposive sampling yaitu teknik pengambilan data dengan pertimbangan tertentu.Hasil penelitian ini menunjukkan adanya pengaruh yang signifikan antara metode bermain peran dengan interaksi  sosial anak. Hal ini terlihat dari nilai rata –rata kemampuan interaksi sosial anak sebelum dan sesudah diberi perlakuan bermain peran yaitu 45.55 menjadi 60.95. Hal ini juga dibuktikan dari hasil pengujian hipotesis dimana nilai sig.< 0,05.
Strategi Pengembangan Program Pembelajaran Pendidikan Agama Islam Sekolah
Authors: Susilawati Sj Diana , Maarif Muhammad Anas , Zamroni Afif
Published: June 2021

The research objective is to describe the process of planning, implementing and controlling the development of Islamic religious education learning programs. The type of research used is qualitative with a case study approach. Data collection techniques using interviews, observation and documentation. informants who are the source of information are the principal, vice principal, curriculum assistant, religion teacher and extracurricular coaches. The results of the research are: 1) planning for the development of Islamic religious education learning programs can be seen in the form of learning tools or programs which include syllabus development, annual plans, semester programs and teaching preparation in the form of learning implementation plans which are based on a study of competency standards, basic competencies and indicators. which is determined based on content standards, competency standards for graduates of Islamic religious education subjects. 2) Implementation of developing learning programs, namely carrying out learning program development activities, following the applicable procedures in schools, namely by organizing and directing the development of learning programs with reference to intracurricular and extracurricular learning. This study also found that controlling the implementation of the learning program was carried out by evaluating student learning outcomes and monitoring class in intracurricular and extracurricular learning.
Urgensi Manajemen Budaya Organisasi Sekolah Terhadap Pembentukan Karakter Peserta Didik
Authors: Rony Rony
Published: June 2021

To improve the quality of human resources (human resources development) in order to be able to keep up with developments in science and technology, people tend to choose quality educational institutions. The quality of education in schools is inseparable from the culture of the school organization which has become a distinct character of education in schools. In addition to functioning as a school identity that differentiates schools from one another, it can be a standard of behavior for school members that influence school members to carry out internalized actions. The development of a strong, intimate, conducive, and responsible school organizational culture will provide various benefits for all school members. Every school member must play an active role in developing and realizing a good school culture. To develop and create a school organizational culture that can shape the character of students is not an easy matter. In addition to several supporting factors that can help the implementation of a good school organizational culture, there are also inhibiting factors that cannot be underestimated, which will cause the implementation of school organizational culture management not to be carried out properly.
The Relationship between Financial Wellbeing and Mental Health: A Systematic Literature Reviews
Authors: Mohd Faizul bin Hassan  , Mohd Hassan Naffisah , Erne Suzila Kassim  , YahyaMahyuddin Bin Utoh Said
Published: June 2021

The aim of this study is to identify and appraise existing relationship between Financial well-being and mental health. Despite abundance of studies on financial wellbeing and mental health, efforts to systematically review this study are still lacking.  This article attempts to fill the gap in understanding and identifies the variables that influences the financial wellbeing and mental health. Systematic literature searches in Psychinfo, Scopus and Google Scholar databases were performed using the combinations words of “Financial well-being” „Indebtedness? or „Mental disorder? „Debt? and „Health? or „Depression? „Mental illness?  or „Anxiety? or „Stress? or „Distress? or „Mental Health were used. The majority of studies (7 of 32) used questionnaires commonly used for measuring the variables between financial measures and mental health measures.  The review identified 32 papers examining the associations of the relationship between financial wellbeing and mental health.  findings also differed by the tools of measurement that using for each financial wellbeing and mental health. A total of 6 instruments for financial wellbeing and 12 instruments for mental health were found. Most instruments assessed different dimensions of mental well-being, with different subscales. This review provides a comprehensive review of relationships between financial well-being and mental health and also instruments used in assessing financial wellbeing and mental well-being
Digital Behaviour of Rural School Students: Attitudes and Perception of Digital Technologies
Authors: Siti Noorsuriani Maon  , Naffisah Mohd Hassan  , Noorain Mohammad Yunus  , Sri Fatiany Abdul Kader Jailani  , Nor Azmaniza Azizam
Published: June 2021

Digital technologies have become essential tools in today’s society in many ways.  However, not all of them have undergone formal training or assistance to be competent for them to survive in a challenging environment in a digital world. Hence, this study is intended to determine the digital behavior of students in rural schools, including learning how youth self-evaluate their perceptions of digital technologies, digital competencies, and attitudes towards digital technologies. A descriptive quantitative methodology was employed, using survey questions were distributed to selected secondary schools in rural areas. Based on the descriptive analyses of 211 responses, the findings indicate there is a high level of attitude toward ICT usage. Troubleshooting, staying safe online, and being credible; as well as in the ethical knowledge, were found moderately competent. Digital security attributes were at a moderate level; however, privacy concerns have reached a high level of agreement. Perception of ethical digital behaviour was significantly associated with the frequency of ethical digital behaviour of the school students. Specific concerns and emphasis on youth digital technology usage and education must be imposed on ensuring that they are not neglected, and vulnerable to cybercrime, but also on fostering a responsible e-society with excellent digital citizenship attributes.
Smart Cities Enabling Effective Response in Battling Covid-19 Pandemic
Authors: Boubekeur Ibtessam , Rani Nazatul Shima Abdul , Krishnan K. Sarojani
Published: June 2021

Covid-19 has subsequently given rise to a pandemic in early 2020. This virus is new and highly contagious; unfortunately, there is no specific medication to treat the virus. Thus, it has become an obligation for all countries in the world to take drastic measures to protect and ensure safety of their citizens. Moreover, technology has played an important role to help the government to implement measures and customize services effectively to contain the virus. Some of these measures include artificial intelligence or “AI”, Internet of things, “IoT” and Clouds. Countries adopting the smart cities concept were predominately prepared with a technology platform, thus they were effective to react promptly and spontaneously to the threat. This paper discusses success stories of four countries from the Australia-Asia region which up to now have successfully contained the virus. From the literature review analysis, besides technology, other factors have contributed to fight the pandemic battle. These factors are core factors in the process of combating the virus and are related to managerial leadership, leadership, accountability, collaboration, and effective communication. These factors play an important role along with smart cities technologies in the battle to fight against Covid-19.
The Roles of Appraiser and Performance Appraisal Systems on Employee Job Satisfaction
Authors: Rani Nazatul Shima Abdul , Krishnan K. Sarojani , Okezie Bright Collins
Published: June 2021

This study aims to examine two types of performance appraisal systems used to assess food operators to maintain high employee job satisfaction.  About 250 questionnaires were distributed around Kampung Bharu area in Kuala Lumpur.   The number of questionnaires returned were 210 but only 205 questionnaires were usable for the present study. SPSS was used to analyse the data to test the hypotheses. There were four variables researched in this study, namely Behaviour-Based Performance Appraisal System, Competency-Based Performance Appraisal System, appraiser, and job satisfaction. There was a direct and significant relationship between both appraisal systems with the appraiser (H1 and H2) and employee job satisfaction (H4 and H5) respectively. There was also a direct and significant relationship between the appraiser and restaurant employees’ job satisfaction (H3). The role ofthe appraiser was identified as a mediator in the relationship between Competency-Based Performance Appraisal System and employee job satisfaction (H7). However, the role of the appraiser partially mediated the relationship between Behaviour-Based Performance Appraisal System and employee job satisfaction (H6). The appraiser was regarded as critical in ensuring that the appraisal system adopted be carried out fairly, professionally, and rationally with adequate knowledge to boost job satisfaction among food operator employees in Kuala Lumpur.
Mediating Effect of HRM Practices on the Relationship between Social Networking Sites usage and Employee Retention in Large Companies in Malaysia
Authors: Abushammalah Abdallah , Junaidah Hashim
Published: June 2021

This research aims at addressing the relationship between social networking sites with selected human resource management (HRM) practices that include recruitment and selection, compensation, and training and development toward a relationship with employee retention. Several studies and research (Cappelli, 2009; McDonald & Thompson, 2015) stated that effective use of social networking sites could help to improve personal branding and therefore help to develop one’s career. This research used a quantitative survey method to gather the data. A purposive sampling technique was used in this study and a total of four hundred employees from the largest 20 public listed services provider companies in Malaysia participated in the study. Communication networks are measured with 14 items for professional purposes and another 14 items measured the usage of social networking sites for social purposes. These 28 items are modified to assess the usage of communication networks based on Warnakula and Manickam (2010). For HRM practices, 26 items are given to the respondents to answer. Meanwhile, employee retention is measured by 10 items adopted based on Allen and John (1990). The data was analysed using SPSS where descriptive and inferential analyses were used to answer the research objectives. The findings and implications of the study are discussed.
Developing a Conceptual Model of Implementation of Business Functions Integration in the Internal Business Process Performance
Authors: Yulianto Erwin , Sudirman Iman , Sutarman  , Setiawan Awan , Ruhanda
Published: June 2021

The research used in assessing the performance of internal business processes in this study uses strategic management theory and operations management through the Resource-Based View approach, Market-Based View aspects and Organization Culture. The Banking Industry has to think about the business processes and workflows to empower employees and what they need to do to stay competitive in the face of rapidly changing competition. The method used in this research is a Literature Review with a descriptive approach that will produce a conceptual model. The resulting conceptual model development was adopted from DeLone and McLean's Model about the success of the Information System which was combined with the input variables studied to produce an implementation model for the integration of business functions to improve the performance of internal business processes.
Strategy for the Effectiveness of the Implementation of Academic Information Systems in College in Efforts to Improve Information Quality
Authors: Setiawan Awan , Iman Sudirman  , Nurman Helmi  , Erwin Yulianto  , Ruhanda
Published: June 2021

Information systems research success has begun to decline in the past few years, but existing research is still inaccurate in its definition and in the factors that involve the information system success. This research has designed to analyze, study, and find out the performance from implementing academic information systems in universities in an effort to improve the quality of information. The research was conducted using a qualitative approach and case studies, namely problem formulation, study proposition, analysis unit, data linkage to the proposition, the criteria for interpreting the findings and making conclusions and recommendations. From the results of the research data analysis, several conclusions were obtained, namely, the academic information system running in universities has not met expectations. The performance of academic information systems that can support the smooth operation of the universities is not well understood. It is necessary to formulate an optimal academic information system strengthening strategy that can support the smooth operation of the universities.
Effective i-360 Virtual Museum Tour: Guideline for Elements of Mise-en-Scene from Video Content
Authors: Mohammad Shahiran bin Salim  , Siti Izani binti Idris
Published: June 2021

The i360 Virtual Museum Tour was developed as a facilitator for Topic 5 Mise-en-Scene and Semiotic Elements in the module DVV3013 Film Studies at the Department of Design and Visual Communication, Tuanku Syed Sirajuddin Polytechnic, Perlis. In terms of location selection, costumes, makeup, lighting, and actor expression, these Mise-en-scene elements include the function of a scene in the film to explain something or give a dramatic effect to the audience. This application displays the Malaysian race through the Iconography element Mise-en-scene of the background, costumes, and props highlighted as part of the Malay sultanate concept before. It was developed using a 360 camera as well as 3D vista software for editing purposes. Exploring this museum involves four main aspects, namely information related to learning at the Kedah State Museum and the Kedah Royal Museum and the quiz elements as an assessment. Design Thinking Process (Empathies, Define, Ideate, Prototype and Test) is used as a methodology for design and development process. Thirty-five diploma students (51.4% men, 48.6% of women) responded to the questionnaire. Based on analysis data shown this application is beneficial to know and recognize the elements of Mise-en-Scene the higher-level percentage of 93.0%.
Decomposition Factors Household Energy Subsidy Consumption in Indonesia: Kaya Identity and LMDI Approach
Authors: Sudarmaji Eka , Achsani Noer Azam , Arkeman Yandra , Fahmi Idqan
Published: June 2021

For decades, the subsidy had prompted excessive and wasteful while offering little motivation to boost energy efficiency or reduce domestic greenhouse gas emissions. This paper aimed to measure household subsidy energy by examining the relationship between the other ten variables. The Logarithmic Mean Divisia Index (LMDI) and decomposition index were deployed to recognize the determinant effects that drive household's subsidy energy consumption. This study also presented an ARDL model applied. The robustness of the Granger Causality, Long-run, and Short-run causality during 1990-2017 was assessed. Based on LMDI, we found out that Population, Income Per Capita, Ratio National Renewal Energy over Fuel Fossil, Gross Capital Stock, Urban Household Consumption, and Ratio Household Subsidy were the positive factors that aggravate the change in household energy subsidy. The negative sign of Ratio National Energy Intensity effect, Ratio Fossil Renewal Energy effect, Ratio Capital Labour substitution, and Ratio Household over Labour Force signified the decreasing significance of less household energy subsidy. On the panel ARD-ECM, we identified a negative sign speed-of-adjustment and significant at 1%. It implied that all the ten variable effects were converging in the long run after an experience shocks. The equation parameters were considered stable since the CUSUM gets inside the two critical lines. Additional RESET test of the stability to ascertain whether the estimated model was linear or correctly specified has been performed.
The Foreign Language Students’ Readiness on Online Learning in Malaysia
Authors: Ismail Mohd Hafizul , Saaludin Nurashikin , Haji Mohd Ali Siti Nur Dina , Zainal Abidin Ira Syazwani
Published: June 2021

Since the COVID-19 outbreak had crossed the globe and wreaking havoc on people’s life and health, almost all educational institutions were closed down temporarily and online learning has replaced previously conducted conventional teaching and learning in the classroom. However, the main concern here is to what extent the students are ready for this drastic change in their learning endeavors. Therefore, this study seeks to examine the readiness levels of online learning among foreign language students in selected higher learning institutions in Malaysia. Based on the results, it is reported that most Foreign Language students in Malaysia were ready for online learning with the highest score in the “computer and Internet self-efficacy” dimension but demonstrated the lowest score in terms of the “learners' control” dimension. The results further indicated that the students were very confident in their ability to search and gather information for online learning using search engines like Google and Yahoo. On the contrary, this group of students opined that they had less control in managing their online learning class as they were easily distracted by other online activities like messaging, gaming, and browsing the Internet.
An Effective Model for Fraud Risk Management in Mitigating Telecommunication Fraud Incidences
Authors: Rani Nazatul Shima Abdul , Krishnan K. Sarojani , Suda Khairul Azizan , Fatimazahra Chahhoub
Published: June 2021

In the context of Malaysia, the most common types of cyber attacks are denial of service, intrusion attempts, spam, vulnerability report, fraud, malicious code, and content-related attacks as reported by Cyber Security Malaysia. However, since 2011,  cyber attacks such as intrusion attempts, denial of service and spam are decreasing steadily as a result of security measures that have been taken by companies or internet users. Nevertheless,  cyber attacks which are steadily increasing are cyber harassment, intrusion and fraud. Approximately 5,328 fraud incidences were reported in 2011 while in 2020, the number of cases rose to 7,593 cases. Out of these cyber attacks in Malaysia, the most proliferating ones have been identified as fraud incidences. Thus, it is highly needed to come up with and propose the best fraud risk management strategy to handle fraud incidences among internet users and internet providers through the utilization of business intelligence tools, and quality enhancement via quality systems in place, quality information, and quality users. With these tools in hand, it is hoped that the proposed model will serve as a framework to mitigate and/or prevent the occurrence of fraud incidences.
Influence of Company Age, Profitability and Financial Leverage on Underpricing Shares in the Initial Public Offering 2019 on Indonesia Stock Exchange
Authors: Mujennah  , Nurul Hayati  , Lydia G.  , Nor Baiti
Published: June 2021

Researchers want to analyze and obtain empirical evidence on the influence of age and financial ratios.  The population included in this study was companies that IPO in IDX period 2019 totaling 54 companies. The data type used is secondary data with SPSS 24.0 applications. The results showed that the company's age, profitability, financial leverage significantly influenced the underpricing of shares in the IPO in IDX period 2019.
Students' Perception of Written Corrective Feedback: A Case Study of Pre-University ESL Learners in the Maldives
Authors: Mohamed Sameer Khadheeja , Dheeba Moosa
Published: June 2021

In language teaching pedagogy, feedback is crucial for English as a Second Language (ESL) students to achieve the target language competency they desire. According to literature, effective feedback can only be given when educators understand the way individual students perceive the feedback that they are given. Unfortunately, there are very few published studies on the Maldivian students’ perception of feedback till date. Therefore, to understand pre-university students’ perception of feedback, this qualitative case study used data through focus group discussions and stimulated recall sessions from a sample of six students. The findings indicated that the students from the selected institute felt encouraged as well as appreciated when the lecturers gave feedback. Moreover, they felt apprehensiveness when the lecturers failed to provide enough feedback, or any at all. This indicated that the students highly regarded the importance of feedback. Therefore, it is advisable for educators to consider how students perceive the written corrective feedback provided for them so that it may result in successful uptake.
A Descriptive Analysis on Automobile Sales
Authors: SUBRAMANIAN KAYALVIZHI
Published: June 2021

The automobile market are the fastest developing segment in the planet.  India being one of the worthwhile centers for the vehicle advertise which attracts auto majors from everywhere throughout the world. The ongoing development in the passenger car market in India is substantially more than mere market dynamics in a specific vehicle segment. It is a impression of the changing lifestyle of the wealthy class in the nation. This study provides the establishment for governmentâ€™s macroeconomic control and automobile manufacturerâ€™s production.
MASS TRANSFER OF FREE CONVECTION FLOW BETWEEN TWO PARALLEL OSCILLATING PLATES.
Authors: Zulkiflee Fasihah , Shafie Sharidan , Mohamad Ahmad Qushairi
Published: June 2021

This paper investigated unsteady free convection flow between two parallel plates with mass diffusion. One of the plate are considered oscillating. Appropriate non-dimensional variables are used to reduce the dimensional governing equations along with imposed initial and boundary conditions. The exact solution for velocity, temperature and concentration profiles are obtained using the Laplace Transform technique. The graphical results of the solutions are presented to illustrate the behavior of the fluid flow with the influenced of Schmidt number, Prandtl number, oscillating parameter, Grashof and mass Grashof number. The corresponding expressions for skin friction, Nusselt number and Sherwood number are also calculated. It is observed that increasing Prandtl and Schmidt number will increased the Nusselt number but decreased the skin friction.
THE DEPICTION OF THE METAPHORICAL EXPRESSION IS THE TOOL TO TRAGEDY IN EUGENE Oâ€™NEILLâ€˜S PLAYS AS MODREN AMERICAN DRAMA
Authors: Khalil Haider ibrahim
Published: June 2021

The main purpose of this paper is to identify the metaphorical expressions in the father of American drama, Eugene ONeill. It is mainly depicting some of the tragic images in ONeill plays. Furthermore, the tragic images has consisted of the following: murder, revenge, killing and the gloomy picture that is brought the dark side of life in the selected text. The researcher will use the qualitative approach and narrative analysis of the text. These plays reflect the tragic images in Modren American drama.
A EFFICIENT ANALYTICAL APPROACH FOR NONLINEAR SYSTEM OF ADVANCED LORENZ MODEL
Authors: Barde Aminu , Normah Maan
Published: June 2021

This work proposed a new analytical approach for solving a famous model from mathematical physics, namely, advanced Lorenz system. The method combines the Natural transform and Homotopy analysis method, and it’s have been suggested for the solution of different types of nonlinear systems of delay differential equations. This technique gives solution in a series form where the He’s polynomial is adjusted for the series calculation of nonlinear terms of Lorenz system. By choosing an optimal value of auxiliary parameters the more precise approximate Solution of this model is obtained from only three iterations number of terms. Some figures are used to demonstrate the accuracy of the result based on the residual error function. Therefore, the approach gives rise to an easy and straightforward means of solving these models analytically. Hence, it can be used in finding solutions to other forms of nonlinear problems.
Correlation of Optical and Mechanical Properties of Silver Nanoparticles Sensitized Europium Doped Magnesium Zinc Sulfophosphate Glasses
Authors: Danmalam Ibrahim Mohammed , Ibrahim Bulus
Published: June 2021

Magnesium-zinc-sulfophosphate glasses with various concentration of Silver nanoparticles (AgNPs) of molar composition 63.5P2O5–20MgO –15ZnSO4–1.5Eu2O3 –yAgNps (y = 0.0, 0.1, 0.3, 0.5, 0.7,0.9 and 1.1 g in excess) were prepared via melt-quenching method.  As-synthesized glasses were characterized at room temperature to determine the relationship between structural and mechanical properties. Densities of glasses were increased from 3.0720 to 4.3304 g.cm-3 with increase in AgNPs embedding levels, suggesting the network shrinkages and enhanced compactness. The Young’s, shear and bulk modulus of glasses were observed to enhance with the increase in AgNPs contents. The Poisson’s ratio of the studied glasses was increased from (0.0978 to 0.1416) while the values of both Vickers hardness (from 0.0658 to 0. 0.0682 GPa) as well as  (from 0.8350 to 0.8916) were increased. The proposed glass composition may be useful for the development of hard surface engineering.
EVALUATION OF RUTTING PERFORMANCE OF HOT MIX ASPHALT CONTAINING POLYMER ADDITIVES
Authors: Eltwati Ahmed , Alaa A. A. Elkaseh
Published: June 2021

In recent decades, escalating traffic volumes initiate asphalt pavements revealed to larger stresses, which can create premature distresses. To enhance the resistance to distresses, modification of the asphalt mixtures has been studied extensively. The objective of this paper is to evaluate the performance of asphalt pavement made with various bitumen types and also different thicknesses. The bitumen types used were conventional asphalt (Ac 60-70) and polymer modified asphalt (PG 76-22). The thickness of asphalt samples tested was 70, 80, and 90 mm. In this study, Accelerated Pavement Testing (APT) was conducted to evaluate the rut depth in the surface of the pavement. The experiment was run up to 20,000 cycles. The results revealed polymer has a significant effect on pavement resistance to rutting. The resistance can be increased by up to 30%. In addition, the rutting occurred rapidly for the first 3,000 cycles. Beyond 3,000, the deformation is increased slowly.  On the other side, the results showed that as the HMA thickness increases as the resistance to deformation increases. We, therefore, can conclude that adding particles of polymer to HMA could improve the structural performance of pavement i.e. rutting resistance and reduce the thickness of the surface
A* Algorithm for Shortest Path in Robot Motion
Authors: Hameedah Sahib Hasan
Published: June 2021

Mobile robot motion in real-time has many challenges in terms of reaching the exact destination and avoid obstacles. In this work, A * algorithm has been selected to show the robot motion in simulation through Matlab software. Different destinations are selected with several obstacles. A * algorithm shows the ability to achieve the shortest path distance for mobile robot motion as well to avoid different obstacles. Thus, the A * algorithm can be an attractive choice to achieve the best shortest path distance for Mobile robot motion.
A Experimental Study of Laboratory Compaction and Sand Cone on Foundation Tub Soil
Authors: Meti  , Tri Harianto  , Abdul Rachman Djamaluddin  , Achmad Bakri Muhiddin
Published: June 2021

Soil is a very important material so that it must be able to support the loads above it, so the soil must have a sufficiently good soil bearing capacity. In this study, the soil compaction was compared with the laboratory compaction method with the sandcone method. The objectives of the study were knowing the characteristics of the soil and knowing the laboratory compaction compares with the sandcone compaction in the foundation tub. Soil is drawn from the same point for the Proctor Test and Sand cone Test. The results of this test are used in the foundation model test. Characteristics testing in the laboratory: moisture content, density, consistency limits (LL, PL), sieve analysis, hydrometer, laboratory compaction and  sandcone. Research result It was found that the soil type was based on the AASHTO classification was A-7-5 and the soil classification based on the Unifield Soil Classification System (USCS) was MH. Laboratory compaction (Proctor Test) average moisture content of 32.26%, γd maximum 1.33 g/cm³, and the sandcone compaction  of  model foundation test of soil without foundation ɣd was 1.36 g/cm³ , Vertically arranged tire foundation ɣd was 1.36 g /cm³ , horizontally arranged tire foundation  ɣd was 1.36 g /cm³
ACTIVATION OF PHAGOCYTIC LINK OF IMMUNITY WHEN USING A NATURAL HEPATOPROTECTOR IN THE COMPLEX TREATMENT OF PATIENTS WITH PULMONARY TUBERCULOSIS WITH ADVERSE REACTIONS TO MEDICINES
Authors:   SO “National institute of phthisiology and pulmonology named after F. G. Yanovsky NAMS of Ukraine”, Rekalova O. M. , Matvienko Yu. O. , Panasyukova O. R. , Grabchenko N. I. , Zhadan V. M. , Yasir S. G. , Tlustova T. V. , Taranenko A.V. , Pogrebna M. V. , Korotchenko S. P.
Published: June 2021

Various types of adverse reactions to medications often occur during the treatment of diseases that require the simultaneous administration of several drugs. Methods. To study the effect of the natural hepatoprotector Hepatomunil on immunological and biochemical blood parameters, there was a clinical and laboratory examination of 20 adult patients with pulmonary tuberculosis with a deviation from the norm of at least one blood test of the liver or kidneys function during antituberculosis treatment. Biochemical and immunological research methods were used. The drug Hepatomunil was prescribed in the second month of standard four-component anti-tuberculosis therapy for 20 days. Results. There was a significant decrease in blood levels of cytolytic enzymes AST and ALT after the course of treatment with Hepatomunil which showed an effective hepatoprotective action. The phagocytic number of blood granulocytes increased significantly from (6.3 ± 0.6) units up to (11.2 ± 2.1) units; and the one of blood monocytes did from (6.8 ± 0.7) units up to (11.1 ± 1.7) units also. The drug had no effect on the studied parameters of cellular immunity (CD3+19–, CD4+8–, CD4–8+, CD3–16+, CD3–19+). Conclusions. The drug Hepatomunil demonstrated not only pronounced hepatoprotective, but also immunomodulatory properties when used in the complex therapy of patients with pulmonary tuberculosis. It stimulated the blood phagocytes function by restoring their ingesting capacity (with an increase of the phagocytic number), which is very important in the treatment of patients with chronic lung diseases with infectious agents involved, which are destroyed better when the phagocytic function of blood cells is activated. Key words: immunomodulator, hepatoprotector, hepatotoxic reactions, phagocytosis, pulmonary tuberculosis