Authors:Ratna Dewi Syarifah; Mila Hidayatul Aula, Andini Ardianingrum, Laela Nur Janah, Wenny Maulina Abstract: Comparison of thorium nitride (ThN) and uranium nitride (UN) fuel on small modular PWR in neutronic analysis has been carried out. PWR in module is one type of reactor that can be utilized because of its small size so that it can be placed on demand. Neutronic calculations were performed using SRAC version 2006, the data library using JENDL 4.0. The first calculation was fuel pin (PIJ) calculation with hexagonal fuel pin cell type. And the second calculation was reactor core (CITATION) calculation using homogeneous and heterogeneous core configurations. ThN and UN fuels use heterogeneous configurations with 3 fuel variations. The reactor geometry was used in two fuels are the same, with diameter and height active core was 300 cm and 100 cm. In this research, Np-237 was added as a minor actinide in the UN fuel to reduce the amount of Np-237 in the world and also reduce the k-eff value. For ThN fuel, Pa-231 also added in the fuel to reduce the k-eff value. The optimum configuration of UN fuel reached when used heterogeneous core configuration case four with percentage of U-235 in F1=5.5 %, F2=7 % and F3=8.5 % also with the addition of Np-237 0.2 % and fuel fraction 56 %. It has a maximum excess reactivity value 12.56 % %∆k/k. And then, the optimum configuration of ThN fuel reached when used heterogeneous core configuration case three with percentage of U-233 in F1=2 %, F2=4 % and F3=6 % with the addition of Pa-231 0.5 % and fuel fraction 53 %. It has a maximum excess reactivity value 7.67 % %∆k/k. The comparison of optimum design of UN and ThN fuel shows that the ThN fuel has the k-eff value closer to critical than UN fuel. Therefore, in this study, ThN fuel is more suitable for use in PWR reactors because it has a small excess value and can operate for 10 years without refueling PubDate: Sat, 30 Apr 2022 00:00:00 +030
Authors:Nishad Nawaz; Dr, Ms Abstract: which is becoming an essential and increasing competitive for business when it comes to marketing. Many companies would have invested heavily on different digital marketing channels just to gain some market share such as search marketing, social media marketing and email marketing etc. With consumers being exposed to many different digital advertisements daily, businesses need to be smarter in their approach when targeting customers. This study on the Effectiveness of Instant Messengers on Consumer Behaviour as a Digital Marketing Channel. The quantitative research was conducted with the sample of 52 respondents in Singapore. In this research, an inductive mono-method approach was used. Data was explored to develop theories from which will then be subsequently relate back to the literature in subsequent discussion. The research has found that, the perception of the effectiveness of instant messaging as a marketing channel is weakest as compared to the other digital marketing channel. Social media came in the top place versus the rest of the digital marketing channel. However, this can be contributed to the lack of exposure to the medium itself. The study also concluded that millennials were more responsive towards instant messenger as a digital channel compared to non-millennials. Lastly, studies have also shown that one important factor any consumer buying behaviour is the perception of the brand and that millennials are more product conscious whereas non-millennials are more price conscious.
Authors:hussein maaitah Abstract: In this work, the effects of forced viscous dissipation on Williamson fluid flow over a horizontal flat plate in saturated porous media at constant surface temperature were investigated. A Darcy–Forchheimer–Brinkman model based on conservation principles and related governing equations was used to model the flow. The governing equations were converted to their dimensionless form and numerically solved in MATLAB using the built-in function bvp4c and the shooting approach. Local velocity and temperature profiles, wall shear stress, and the Nusselt number parameter were all illustrated and studied as boundary layer features. The effects of Nusselt number, Forchheimer, Darcy, porous media, Williamson, and viscous dissipation factors on velocity and temperature profiles, skin friction coefficient, and surface heat transfer coefficient were of equal importance to be examined. Based on the present results, increasing the Darcy number makes the momentum features such as velocity boundary layer and fluid shear stress in the boundary layer increase, whereas energy characteristics such as temperature profile and Nusselt number in the thermal boundary layer decrease. As Williamson's fluid parameter within the boundary layer direction is increased, the wall shear stress and the flow velocity profile inside the boundary layer decrease, the heat transfer coefficient and Nusselt number so decreases while the temperature profile increases. The current findings show that the technique utilized in the present work has significant agreement with the results of previous studies.
Authors:Dung Hoang Tien Abstract: In recent years, Minimum Quantity Lubricant (MQL) technology is emerging as an alternative to conventional liquid cooling. The MQLs is an environmentally friendly lubricant method with low cost while meeting the requirements of machining conditions. In this study, the machined surface quality, as well as chip formation and tool wear under different machining conditions, were investigated using a combination of two types of acoustic emission (AE) and vibration signals applied to SCM440 steel turning with MQL. The experimental and analytical results show that the obtained AE and vibration signal components can effectively monitor various circumstances in the turning process such as surface quality, chip formation as well as cutting tool condition. The AE signals showed a significant response to the tool wear processes while the vibration signal showed a good ability to reflect the surface roughness during turning with MQL. The chip formation process through the cutting mode parameters (cutting speed, feed rate and depth of cut) was detected through analysis amplitude of the vibration components Ax, Ay and Az and the AE signal.
Authors:Behrooz Liravinia Abstract: Among the important issues in improving the design, we can mention the proper assessment and management of risks. This trend has been due to the continuing uncertainty of the global economy and advances in information technology. Developed design issues, despite their very important and valuable benefits, are doubly vulnerable and can expose the organization to higher levels of risk. Achieving sustainability is increasingly recognized worldwide as an effective strategy to meet today's design challenges. Design in the field of oil, gas, and petrochemical industry is very important due to its key and high risk in different countries, especially Iran, and also because of its different effects on the environmental dimension, also, the issue of identifying and evaluating design risks has been neglected in recent research. Therefore, the purpose of this study is to identify and evaluate design risks in the Iranian oil, gas, and petrochemical industry. The present study is a descriptive survey type and in terms of techniques and data used, it is both qualitative and quantitative, simultaneously. Based on the literature review, 44 risk factors affecting the design were identified. At the discretion of the experts, and conducting in-depth two-stage interviews and collecting feedback through a questionnaire, 20 key risk factors were finally approved. The validity of the questionnaire in the first stage was based on the opinions of 5 experts and the second stage was finalized using a questionnaire based on the opinions of 14 experts in this industry. Cronbach's alpha coefficient for the risk questionnaire was above 0.7, which indicates the reliability of the research tool. Risk Priority Numbers (RPN), Delphi, SWARA, fuzzy Multimoora methods, and analysis of risk matrices were used to analyze risk factors. According to the research findings, four risk factors are: "Weak consulting on returns of equipment to the supplier by the contractor", "Incorrect assessment of environmental laws and regulations in the implementation of the project", " Selection of consultants and contractors committed by the main consultant" and " Incorrect alignment of pollution disposal equipment with the nature of work", which have a higher priority than other risk factors in design projects in Iran's oil, gas and petrochemical industry. It is suggested that industry owners take serious and continuous measures in the field of "upgrading the level of process knowledge based on current environmental standards".
Authors:guljamal kalman Abstract: This article describes new methods of solving reference resolution. The main method used here is, first of all, the method of solving by reference types, carrying out a theoretical study of methods for solving reference relations. Second, by a formal analysis of all types of references in Kazakh and Russian, English, a comparative study of all types of references in the three languages is conducted. For the Kazakh language, the absence of certain types and the definition of anaphoric and cataphoric relations in the language, taking into account the linguistic features. The purpose of solving reference resolution in this method is to highlight previously undeveloped and fully solved methods, and to search the literature for methods of solving reference types and convenient ways of solving reference resolution using methods of theoretical investigation, formal analysis, and verification of developed research papers in the field. We consider the anaphoric relationship resolution system as a multi-agency system with different relationships, one of the types is determined by the approval of the list of agents in the system. the result will be in the form of graphs. we used the multilingual paralel corpus, which consists of manually annotated technical texts. As a result, the Corps received 356 anaphoric ones in English, 360 anaphoric ones in Russian, and 380 anaphoric ones in Kazakh. according to the results of the assessment, the indicators for the Kazakh language are 79.92, for the Russian language-80.75, for the English language-82.32. The article studies the function of pronouns in the word and taking into account the linguistic features of Kazakh Russian and English, from which we can extract specific types of reference types by eliminating interlingual differences
Authors:guljamal kalman Abstract: One of the urgent tasks facing computer linguistics is to extract information about various objects in textual documents: people, organizations, events, places, etc., as well as the relationships between them. Each information object (entity) corresponds to a certain concept/relationship of the subject domain and has a certain structure. This issue in natural language processing will be related to the notion of referentiality. In this article we will consider the ways of solving referential relations in the Kazakh language In the course of the study, find the pair "antecedent-anaphora" using algorithms for classification of morphological, syntactic and semantic features of pronoun anaphora, Support Vector Machine method and decision tree. As a set of training and test data, we find the pair "antecedent-anaphora" in different types of text, using the Tengrinews.kz news series and excerpts from the stories of G.Mustafin, and calculate the distance between words . We also assess how semantic features, in particular semantic roles, affect the performance of anaphora decisions in Kazakh.. Taking into account the peculiarities of Kazakh nouns, classification algorithms, support vector machine and decision tree method were used, using the method of formal analysis of various texts. The most common classification, reference names and proper names among anaphoric names in the Kazakh language, the actual indicators of anaphoric connection were calculated, knowing the number of "antecedent-anaphora" pairs from the texts collected during the study, the number of "antecedent-anaphora" pairs was calculated.
Authors:Duisebek Nurgabyl; Kuanysh Nurpeissov Abstract: In this article, it is established that when solving problems involving plotting flat sections of a polyhedron, students perform assignments; apply axioms and geometric properties; form and develop spatial representations; and develop divergent and algorithmic thinking, the ability to reason logically, and the ability to make the right arguments and inferences. In this work, we developed problems on plotting the flat sections of polyhedrons in the case when the prism section is defined by the trace l, which is located on the plane of the prism base and does not have common points with the base of the prism, and by point K, which belongs to the side rib of the prism. Problems on plotting the flat sections of polyhedrons using the internal design method are developed. To solve these problems, two types of projections are used: parallel and central. A flat section of a pentagonal prism is constructed using a parallel projection method. The central projection is used to construct the flat section of the pyramid. The designed tasks allow us to form and develop divergent and algorithmic thinking and form spatial representations. After researching this topic, we came to the conclusion that the ability to solve problems of this type contributes to the formation and development of divergent and algorithmic thinking, the ability of spatial representation in future mathematics teachers.
Authors:Nurdaulet Bekenov; Senymgul Dossova Abstract: Corporate social responsibility ensures a stable balance of a quasi-public company between its interests in the economy, environmental protection and solving current social issues within and outside the company, which ultimately leads to sustainable development. The research purpose is to justify the concept of adaptation management of corporate social responsibility for quasi-public sector companies in the context of macroeconomics changing factors. Research methodology: general scientific methods of cognition: comparison, analysis and synthesis, as well as system-situational, dialectical, abstract-theoretical, structural-functional, and systemic. In the application part of the work, a correlation analysis method using computer data processing means is used. Research results: the concept of corporate social responsibility management for companies in the quasi-public sector has been developed. Using the concept will make it possible to implement a systematic approach in the management of corporate social responsibility and ensure the conditions for achieving goals in the company of the quasi-public sector.
Authors:Yousef Ahmadvand Abstract: Environmental management in Iran's iron and steel industry must consider multiple targets. The biggest concerns are the realization of environmental goals as well as the smooth development of industry from the government's point of view which is almost inadequate while companies focus most on economic performance metrics such as fixed investment, operating costs and benefits. Adopting various energy saving measures and reducing emissions is required to increase costs and at the same time affect innovative performance to varying degrees. Therefore, a multi-objective nonlinear optimization model is presented in this research to solve and cover the problems mentioned so far and also based on the articles reviewed in previous researches. As an innovation, this research presents an industrial environmental management mechanism in a steel plant with integrated targets to improve energy consumption, reduce emissions and reduce costs. The approach of this research is to use the Optimal Multi-Objective Genetic Algorithm (O-MOGA).
Authors:Ihsan Hassan; Ahmed Mohammed, Mohammed Talal Abstract: At the time of writing this study, the Covid-19 virus continues to spread through its multiple mutants, the latest of which is (Omicron). Therefore, it was necessary to use effective and unconventional treatments to reduce the spread of this virus and to deliver health care to its infected without the need to be exposed to the risk of infection. This research paper presents valuable solutions for communicating with COVID-19 patients through the use of information technology applications. This method contributes to reducing the consumption of medical resources, reducing contact with patients, and helping with social distancing, which contributes to reducing the spread of this virus. The process of using information technology means to provide medical advice and treatment to patients by telemedicine doctors has been clarified. More importantly, the results of this study presented the factors affecting the use of these applications in terms of social, technological, and organizational.