Proceedings on Engineering Sciences

8

Authors: Qassem N. Alwan, Rasha A. Rajab

This study was prepared in order to reveal the role of the technical and functional quality of the health services provided in the hospitals of the Medical City in Baghdad in achieving patient satisfaction. The hospitals are (Baghdad Teaching hospital, Specialized Surgery Hospital, and Private Nursing Home). A random sample of (264) patients was selected by adopting the questionnaire tool as a measure of the study variables. The questionnaire was distributed to the hospitalized patients in the surveyed hospitals. SPSS Version 25 was used in the analysis. The results showed that the results showed that there is an effective and substantial relation between technical quality and patient satisfaction, as well as a positive and significant realtion between functional quality and patient satisfaction.

8

Authors: Muhammad Ilham Kurniawan, Popo Subroto, Maryana, Yusrina Ulfah, Syahrial Shaddiq, Mohammad Zainul

Indonesia is a country with the 4th largest population in the world. Based on the existing population, Indonesia can build its market in this Industry 4.0 era, currently, several domestic start-ups are growing so rapidly, such as Gojek and Tokopedia, which is in early 2021 choose to collaborate as the Goto Grup in their efforts to their developed their business. The formulation of the problem: How is the impact of the company merger on the value of the Gojek and Tokopedia merger case study Objective: How is the impact of the company merger on the share value of the Gojek and Tokopedia merger case study. By using a qualitative approach and descriptive analysis, this research focuses on analyzing or interpreting written material based on its context. Data is taken from observation. The results of the analysis found an increase in shares whose ownership was dominated by Gojek and with a company merger it would be easy to become an Initial Public Offering (IPO) this in the future will grow the domestic economy. Because the Goto ecosystem itself has fulfilled 2% of the Gross Domestic Product (GDP).

10

Authors: Nnamdi Cyprian Nwasuka, Uchechukwu Nwaiwu

This research presents a solar hybrid air-conditioning system with R410a refrigerant. The sole aim was to compare the performance of a solar hybrid air-conditioner with that of the conventional split-unit air-conditioning systems in the market today. From the experiments conducted, the room temperature of a solar hybrid air conditioner was found to be :27.2, 27.0, 27.0, 27.2, 27.2, 27.0, 28.0, and 29.5 while that of the conventional air conditioner was found to be:69,66,64,66,73,69,66,62 indicating that solar hybrid system had lower values in terms of room temperature than that of the split units air conditioner. Laboratory results, field assessments, and simulations clearly established that hybrid air conditioners can deliver substantial energy savings and demand reduction. Therefore, in the present study, performance evaluation of the solar hybrid system with that of the split units is used to develop approximate analytical solutions for heat transfer in boundary layer flow and heat transfer.

10

Authors: M.Irpan, Gunawan Wibisono, Iib Kurnianti, Rika Apriany Sukmana, Syahrial Shaddiq

Barito Kuala Regency is mostly surrounded by rivers that many potentials for community economic development such as transportation, trading/purchasing places, places of goods release, production/nurseries, and also as a tourist destination. The development of tourist destinations along the Barito River in Marabahan is a special attraction with the headline "Susur Sungai Barito, Marabahan". the route begins from the Agun Al Anwar Mosque, Marabahan floating karamba behind the Rumpiang-Timbunan Batubara bridge on the Ulek Marabahan barge, as well as flat cracker tours. Potential tourism destination assets can be packaged by using digital marketing communications in the era of 4.0 along the Marabahan river. This research methodology uses a qualitative descriptive method, by providing an overview of the attractiveness of tourist destinations along the Marabahan river, research data can be obtained through observation, interviews, documentation related to program advantages of tourist destinations along the Marabahan river. The research results are expected to make a positive contribution to the government in developing centers of excellence for tourist destinations along the Marabahan river that can support the economy of the local community.

12

Authors: Rasoul Yarahmadi, Somayeh Soleimani-Alyar

The performance assessment of strategic levels of an integrated management system (IMS) is critical to policy making phase of executive organizations. Because, the integrity of objectives and strategies in the overall system performance insures the integrity of activities and performance in the subsidiary departments and units. Unfortunately, this approach of assessment has been rarely focused. Here, the Fuzzy Cognitive Mapping-Relative Degree Analysis (FCM-RDA) technique was chosen to assess the performance trend of the health, safety, environment, and energy (HSEE)-IMS in a ministry during 2014-2019. There were 12 HSEE-IMS strategic sub-elements and 6 system sub-performances. The Gephi0.9.2 software was applied to simulate the FCM model. Accordingly, the sub-performance of policy and leadership was placed at the first priority. The development of HSEE management, and review (of policies and programs) were two HSEE-IMS sub-elements, categorized in the second priority. The results showed an ascending trend of the system performance during 2014-2018 and a descending trend during 2018-2019. It was found that the poor performance of HSEE-IMS sub-elements in the strategic and tactical levels resulted in the poor performance of system at the operational levels. There was found a strong relationship between the HSEE-IMS sub-elements and system sub-performances.

18

Authors: Altaf Lone, Azher Jameel, Sajad Hussain Din

This work presents the simulation study of fracture behavior of steel and composites. The crack growth behavior of the material is simulated by extended finite element method (XFEM). XFEM allows the modeling of arbitrary geometric features independently of the finite element mesh. The crack surface elements are enriched by Heaviside function whereas, crack front elements treated by asymptotic functions. Ramberg-Osgood material model coupled with damage is used to simulate the crack propagation. The experimental data is obtained from extensive literature review of literature published in last five years. Numerical simulation is performed on the commercial software ABAQUS. A benchmark test specimen is used for numerical simulation, created as per ASTM standard in ABAQUS. 3D CT, SENB and DENT specimen have been chosen for simulation. The study aims at further extensive detailed study of fracture mechanics’ design. Fatigue has been studied as mode 1 loading. Conformal meshing limitations with dynamic problems using classical FEM have been addressed. Paris law has been used as damage model. Mode I fatigue loading is used to analyze the crack growth in the both steel and composite problems. A specimen with initial crack is loaded till failure and therefore fracture mechanics design is extended to newly introduced class of materials. Number of cycles till failure is evaluated and visualized. The design considerations are further evaluated using benchmark literature tests like four-point bend and compression-tension tests. The knowledge has been extended to solve some practically important problems like turbine disk and surface cracking. A design feature leak before break has been given due consideration by solving the problems with high pressure pipes with internal cracks.

8

Authors: Sulabh Agarwal, Shekhar Srivastava

E commerce has transformed the way of doing business globally. But still offline businesses have majority stake in the major economies of the world. With the arrival of covid 19, things have changes tremendously. E commerce companies have seen an exponential growth rate in these times due to government guidelines, health concerns and technological changes. This paper discusses, recent trends in e-commerce industry in India, the positive and negative impact of Covid 19 on ecommerce activities. Also, opportunities grabbed by e commerce players due to covid 19's impact on its consumers and business scenario. The paper also critically analyses pre and post covid scenario in Indian e commerce industry on various parameters. It also discusses how the business organizations have transformed their business models as per the new normal conditions and customer expectations.

10

Authors: Bayelign Abebe Zelalem

This study aimed to investigate factors influencing building consumers' initial trust in e-commerce in Ethiopia. Mizan-Tepi University academic staffs were chosen as the population for this study. A quantitative research approach with an explanatory research design was employed. All the independent variables used in the research were formulated based on the extant literature review, and initial trust in e-commerce adoption used as an outcome variable. A total of 130 usable questionnaires collected from respondents using a convenience sampling method and the data were analyzed using SPSS version 23 software. The results show that website design quality, security and reputation, purchase characteristics and advertising factor positively contributes to consumers trust in e-commerce. Diversely, the purchase characteristics and support factors have no significant effect on consumers’ initial trust in e-commerce. Thus, it is essential that managers and owners of shopping websites need to consider these effective initial trust-building factors in e-commerce adoption.

10

Authors: Justice Ekow Abban, Bhagwan Shree Ram

With increasing demand for load, the generation of electrical power should also be increased and the interconnection of the network must be carried out in order to ensure the quality of the power generated and to feed the load. Load Frequency control (LFC) of three unrivalled interconnected thermal, hydro and solar thermal power plants has been designed with PI, PID and Fuzzy Logic controllers. AGC is used to stabilize disturbances in the power system with the use of different controllers. Classical conventional and Smart controllers are used as additional controllers independently to improve the performance of the Load Frequency Control (LFC) system by suppressing the oscillation of three uneven area systems, including Solar Thermal, Hydro and Nuclear Thermal, Systems in Area 1, 2 and 3 respectively. The simulation result shows that Fuzzy controller gives excellent dynamic time-setting responses and effectively mitigates oscillations against both step load and random disturbances, PID controllers are simple and cost-effective. The system using three generation sources is used and simulated in MATLAB2015.

10

Authors: Titik Kusmantini, Ahmad Ikhwan Setiawan, Liem Gai Sin, Hendri Gusaptono, Hadi Oetomo

This paper aims to explore the determinants of social sustainability in the supply chain (SSSC) of the company and examine the role of strategic information systems development as moderating variables in the relationship of SSSC and firm performance. The research setting used a sample of 106 SMEs of natural color batik of "Batik Tulis" in Bantul Regency. Testing the hypothesis in this study using hierarchical regression analysis techniques. The results of the study proved that determinant variables such as environmental uncertainty, regulation of environmentally friendly proved to have a significant effect on SSSC, while interdependency determinant variables consisting of three dimensions namely interdependency task, interdependency goal and interdependency reward identified that the three dimensions had no significant effect on SSSC. While the influence of SSSC on firm performance proved to have a significant effect, also the ability of the strategic information system development variable to prove significant was able to strengthen SSSC's influence on firm performance. The results of the study provide empirical evidence about the concept of social sustainability in supply chain (SSSC) in order to develop a new theory of Sustainability Supply Chain Management.

12

Authors: Rodrigo Ignacio Barra Novoa

The article analyzes the early economic impact results of the Arica Small Business Development Center, a program funded by the Technical Cooperation Service. The program led by SERCOTEC has a network of 51 Business Development Centers with national deployment, whose purpose is that "entrepreneurs, micro and small companies improve their management capabilities and business performance." Considering that the operation of the program is carried out through external operators, it is appropriate to systematically evaluate and measure the results of each operator's interventions. In this context, the case study analyzes the main economic impact results of a sample of 833 companies and new ventures that received technical advice at the Arica Business Development Center, between the years 2015-2019. Statistical evidence suggests that assisted clients increase their sales and improve their business performance, generating positive tax returns that favor the program's cost-benefit ratio.

16

Authors: Anantha Raj A. Arokiasamy, Philip Michael Ross Smith, Jayaraman Krishnaswamy, Thanapat Kijbumrung

This study exhibits the mediating effect of innovative culture on the correlation amid knowledge management and firm innovativeness. The implications of organizations which does not practice a creative culture will manifest in the failure to respond and adapt successfully to shifts in the competitive nature of the market world and thus would not be able to produce better outcomes. A convenient sampling approach is used to pick 296 Malaysian dependent MNE samples from different industries. Structural Equation Modeling (SEM) AMOS 24.0 is utilized in the whole study to evaluate the connection among the concepts (e.g. “knowledge management, innovative culture and firm innovativeness”) as well as to evaluate the probabilistic strength of its framework. The outcomes emphasized on all four extents of knowledge management, namely knowledge acquisition, knowledge conversion, knowledge application and knowledge protection were confidently and considerably associated to firm innovativeness. In either side, the partnerships regarding development of information and business innovation and knowledge management and company innovation have been mediated by innovative culture. The research paper offers management teams & professionals with an ability to better appreciate skills and capacities such as KM and firm innovativeness. The findings of this research demonstrate that innovative culture, knowledge acquisition, knowledge conversion, knowledge application and knowledge protection enhance firm innovativeness. This study provides useful insights for managers who wish to enhance innovation culture activities in MNEs, and offers useful guidance to international business scholars, encouraging further research in this area.

8

Authors: Ramesh Babu Aremanda, Sinit Abraham, SolianaTesfaldet

Socio-economic progress of a specific nation determined by the amended energy facilities. Electricity produced from Eritrea majorly relies on imported fossil fuels. In the global scenario, recently bioethanol derived from lignocellulosic biomass sources has become a significant renewable energy form as a blended fuel for the transportation sector.Woodland forest covers totally 60% of the total land in Eritrea. Acacia etbaica, a bushy wood plant native to Eritrea was selected as a feedstock for bioethanol production. Two stage fermentation of aerobic followed by anaerobic in the presence of yeast made potential to generate 3.9% (v/v) bioethanol from Acacia etbaica (Seraw) via multistage dilute H2SO4 pretreatment. Bioethanol was purified by a simple batch distillation and the first stage distillate was identified with 13 % of ethanol by UV spectrophotometer. With a dedication of50,000 ha of land, Eritrea can harvest 45000 ton/year of Acacia etbaica biomass and subsequently produce 15620 lit/year of bioethanol for a 5 year crop rotation.

8

Authors: K. M. Nagaraja, Ambika M Hejib, Sampathkumar. R, Venkataramana B S

In this paper, the complementary of arithmetic mean, geometric mean, harmonic mean and contra harmonic mean with respect to Heron mean are defined. Further, by finding the partial derivatives developed the Schur convexity and Schur geometric convexity results.

10

Authors: Faisal A.M. Ali, Yahya Abdul Ghaffar, Abdullah Al-Swidi Amran Ahmad

Process quality is a key factor in facilitating product sales, (PCIs), which determine the relationship between the manufacturing specifications and the actual process performance by quantifying process potential. Although Cp, Cpk indices are the most popular and important criteria used in manufacturing industries to measure process performance reported extensively in the literature, in the literature, the majority of previous studies neglected the idea of Six Sigma (SS). However, existing PCIs based on SS presented only a range of quality levels rather than a specific quality level value. The purpose of this study is to measure and enhance the precision of performance evaluation for processes industrial, through the use of (PCIs) and (SS) concept. In light of this, this study introduces new performance index based on the idea SS which are SSCpk by extending the indices Cp, Cpk and calculating the sigma process level directly to measure yield process based on idea SS. To demonstrate the effectiveness applicability of the SSCpk index, this study presents an industrial case study to assess the process performance of Aden oil refinery in Yemen. Toward this end, the data for essential quality characteristic of petroleum products namely octane number was collected randomly from Aden refinery. The findings of this study indicated that the proposed index SSCpk outperformed on the existing indices Cpk as the shows at the results and discussion. Finally, the proposed process yield index based on SS concept is a promising approach and thus can be utilized by other industries and practitioners to assess process performance in the aspect of precision and quality control.

10

Authors: Zhang Lianfeng, Yuri Danko, Wang Jiamin, Chen Zhuanqing

Having been proposed for more than 3 decades, the concept of ecotourism is one of the issues that attract much attention from the academic circle. Also, the concept of ecotourism develops with such terms as natural tourism, sustainable tourism and green tourism. With the assistance of CiteSpace5.7.R_1, a total of 443 papers included in WOS database from 2006 to 2020 were taken as the raw data in this paper for study. Visualized map analysis was conducted from such perspectives as country/region distribution, institution distribution, journal distribution, keyword co-occurrence, surge theme and highly cited literature, etc, which is purposed to determine the developmental status of this field over the past 15 years, identify its research hotspots and frontiers, as well as provide reference for ecotourism research.According to the research results, the number of relevant literature has shown an upward trend over the past 15 years, with the focuses of research placed mainly on those countries with relatively developed tourism industry. A large majority of the studies focus attention on the preservation of natural environment. Thought the research on ecotourism and sustainable development shows an uneven trend in the distribution of countries / regions, the distribution of various regions in the world is relatively balanced with regard to high-yield institutions. In the recent 15 years, there have been various research hotspots emerging, including nature reserves, rural economic development and others. As for the trend of research, ecotourism has attached increasing significance to the correlation with the growth of local economy. Over the past 15 years, ecotourism research involves at least three major themes. In spite of this, ecotourism research remains subject to some limitations on system theory and methodology. In the concluding part of this paper, a recommendation is put forward that the government should take various measures to guide the further development of ecotourism.

12

Authors: Khairul Hafezad Abdullah

Safety motivation is essential for a well-functioning Total Quality Management (TQM) program. Several studies on safety motivation have been published; however, the bibliometric review remains deficient. This review aims to discuss the bibliometric and thematic development of safety motivation research using the Scopus database. The graphical visualisation of the bibliometric indicators using VOSviewer is presented to describe publication trends. SciMAT was used to inspect the thematic evolution of safety motivation research. Safety motivation research has fluctuated with less than 30 publications annually. This review is interested in several themes and dimensions in changes and evolution of safety motivation. Essential themes in the first period (2001-2010) were "questionnaire", "aged" and "occupational hazards". The "human" theme became the most significant number of publications and citations during the second period (2011-2020). These themes may be useful as a reference point for occupational safety and health researchers and professionals interested in safety motivation research.

14

Authors: Zelalem Wayessa, Olana Dabi, Gollo Dida

Customer satisfaction is the key to long-term profitability for every organization in the current fast-moving and complex world. This study was to assess the level customer’s satisfaction and identify the dimensions of service quality at Bule Hora University. The study was employed an institution-based descriptive cross-sectional survey. 999 sample sizes were selected by using a stratified sampling technique and relevant information for the study was collected through structured questionnaires. The result of the study revealed that the level of satisfaction of Bule Hora University teachers, students, and supportive staffs' were 82.6%, 45.3%, and 82.6% respectively. The proportion of female customers of the University who were satisfied were slightly greater than that of not satisfied. The estimated coefficients for sex, Age, and faculty were different from zero at a 5 percent significance level. The level of customer satisfaction of the University was not as expected as to be. Therefore, the University leaders and all concerned bodies should work more cooperatively in satisfying their customers. The University managements should give attention to providing quality services and facilities for its customers to alleviate the problems listed as potential explanatory variables.

8

Authors: K.G.Durga Prasad, P.Krishna Murthy, Ch. Hima Gireesh, M.V.Prasad, K.D.S. Sravani

Green computing is the emerging and growing global concern in the current era. Though the information and communication technology turned the earth into paradise, it has environmental impacts through the manufacturing, operation and disposal of computing devices. In fact, computer is the basic need of every one and using it for their own purpose but no one is recognized about the harmful effect of its use on our environment. The concept of green computing emphasizes the improvement in using the computing devices efficiently and minimizing its negative impact on human beings and environment. The one of the important concerns under green computing is the e-waste management. In order to ensure green computing, there must be appropriate mapping between environmental requirements and e-waste management strategies. In this paper Quality Function Deployment (QFD) approach is presented to tackle this issue. The proposed approach serves the purpose of prioritizing e-waste management strategies in addition to the deployment of environmental needs into the measures to be taken to ensure green computing. On the basis of the priorities, the e-waste management strategies can be implemented to achieve green computing in the organization. The proposed approach is demonstrated through a case study carried in an educational institution.

8

Authors: Ravipal Singh, Neetu, Katherine Grigoriou

UAS with inflatable wings (UASWIW) is relatively a novel and complex arena and more to that is its certification process, which is more complex as well as challenging. This paper broadly presents a three-tier architecture to identify the potential hazards associated with UASWIW and proposes the necessary certifications required according to 14CFR. For the sake of simplicity, only a few aerodynamic potential hazards are taken into account and evaluated accordingly. The proposed analytic approach completely satisfies the rules and guidelines controlled by the Federal Aviation Administration (FAA) and would prove a milestone for future researchers who wish to pursue in the same arena.

12

Authors: Mohammad Sultan Ahmad Ansari

A research project was commissioned to study the influence and importance of service quality, employee loyalty, and profitability with service profit chain (SPC) model in telecom service industry in Oman. A questionnaire-based survey was conducted to investigate the consequences of a company's internal assets in terms of employees' satisfaction and loyalty, operational efficiency, and its fallout on company's turnover in terms of revenue and profitability. The telecom service chain spans three entities with service flowing from original equipment manufacturers, to telecom service providers to end users. The findings indicate that the proposed "three-tier two-stage" model holds important lessons for service industry, with service quality and human capital standing out prominently. Next, the employees' loyalty should be seen as valuable assets in an organization in order to improve company's internal performance and develop better relationships with customers and suppliers. Therefore, service quality, employee loyalty and SPC attributes should be measured periodically.

12

Authors: Sajad Hussain Din

Titanium and their alloys are biocompatible, corrosion resistant, good machinability, better fatigue strength and relatively low modulus of elasticity. Due to these desirable properties, they generally have cardiac and cardiovascular applications. For modern clinical requirements a proper tailoring of these materials can be done by surface modifications. This article gives a general perspective of surface modifications of titanium and its alloys. By allowing surface modifications of titanium and its alloys, properties of these materials can be changed in order to improve their biomedical applications.

12

Authors: Tuğkan Arıcı, Hakan Kitapci

The Industrial Revolution, which started with the invention of the steam machine in 1778 by James Watt, brought along the 4th and 5th Industrial Revolutions with the development of information and communication technologies in the 21st century. With the 4th Industrial Revolution announced by Germany in 2011; The idea of integrating industrial processes with information communication technologies, IoT, sensors, artificial intelligence, and robotic solutions has changed with the Society 5.0 concept announced by Japan in 2016. The most important aspect of the Society 5.0 concept that distinguishes it from the Industry 4.0 concept is; The concept of Society 5.0 puts human and human needs at its focal point. The concept of Total Quality Management (TQM) is a management philosophy that has played an important role in the development of many countries in the world, especially Japan and America, and the industrial sector since the second half of the 20th century However, as in every approach and system, TQM has been affected by the changes in both technology and the business world over time. The developments experienced caused the restructuring of TQM. Within the scope of this study, a theoretical study was carried out on what kind of effects Society 5.0 might have on TQM strategies and the concept of Social Quality have introduced.

16

Authors: H. C. O. Unegbu, D.S. Yawas, B. Dan-asabe

This study assessed the relative importance and relationships of the project management practices of construction companies in Nigeria. A total of 221 valid responses were received from the respondents from 250 questionnaire survey carried out on their professional certifications and the level of usage of fifty-three identified project management practices. The result of the data analyses in SPSS (statistical package for social sciences) and LISREL (linear structural relationship) indicates that only 22% of the respondents have at least a certification in project management which implies a poor level of skillfulness in the utilization of project management tools, methods and techniques in managing projects. Also, the respondents agreed that the utilization of project management practices enhance project management as indicated by the above average value of their relative importance. However, it was found out that there was poor utilization of the tools relating to budget management as indicated by the below average value of the relative importance index. The SEM model indicates that communication management positively influences the other project management practices with the highest level of impact on procurement management. It also indicates that cost management negatively influences quality management which implies that excessive control of project cost could result to a compromise in the quality of the output. These findings calls for project organizations to encourage and support the training of their professionals in project management practices and certifications.

8

Authors: Bhanudas Bachchhav

A swingarm is the most crucial component of modern motorcycles use to provide suspension, hold the rear axle firmly, manage load distribution and maintain the centre of gravity. Boring is one of the most critical operation in swing arm manufacturing. The objective of this research work is to conduct a case study on process capability and its improvement for the most critical operation in swingarm. The boring operation was performed on swingarm using CNC boring machine and observations were recorded. X and R Control charts were plotted and commented on process control. The process capability indices Cp, Cpk, Cpm and Cpmk were calculated using MINITAB 19 statistical software. Among all indices, Cpmk was found to be more trustworthy with respect to the process output. Process improvement was suggested by changing the process mean towards the goal. Further analysis of such data is possible using Taguchi's loss function for quality improvement.

8

Authors: I. O. Oladele, A. O. Balogun, M. H. Adegun, O. E. Obolo, O. G. Agbabiaka, M. O. Popoola

This work aim at investigate the influence of grass-cutter hair fiber (GHF) as reinforcement in polypropylene (PP) composites. The mechanical and water absorption behaviour of the fabricated GHF/PP composites were investigated. From the result, it was observed that at low weight fraction of GHF after treatment, both the mechanical and wear properties were enhanced, which may be attributed to the removal of waxy materials from the fiber surfaces and the addition of oxygenated functional group at the surface and edges of the fibers. While the water absorption capacity of the composites was enhanced due to the presence of hierarchical micro-pores in the composites. Hence, the composites can be used as light-weight engineering materials for automobile applications.

10

Authors: David Ngwoke Mbazor

The importance of office facilities and workplace environment in the university system cannot be overemphasized because office facilities help in facilitating work schedules and increase staff's efficiency and productivity. Unfortunately, in many universities in the developing countries such as Nigeria, there are in-adequate facilities in the staff offices, and such has resulted in low productivity and has impacted negatively in universities' global ranking. The study assessed the facilities provided in the staff offices at the federal university of technology Akure Nigeria and examined the essential facilities that influence staff productivity. A total of 204 questionnaires were administered to both the academic and non-academic staff members drawn from the eight (8) academic schools that are in the university. 184 of the administered questionnaires were retrieved from the respondents representing 90.2% and therefore served as the basis for the analysis. A descriptive method of analysis was used to analyze the data. The study revealed that the conditions of fire prevention facilities such as fire extinguisher installed for workers are not functional; the same applies to the toilet facilities. Also, the further revealed that the staffs are very dissatisfied with the condition of conveniences and the state of the sofa in the offices. Finally, the study revealed that the most relevant facilities that influence staff productivity are water, electricity, and Wi-Fi. The study, therefore, recommends that the universities should make adequate provision for water, toilet, electricity, sofa, and fire extinguishers in the staff offices as these have the potential of motivating workers for greater commitment and higher productivity.

10

Authors: Elena A. Posnaya, Olga I. Ditsulenko, Margarita I. Kaznova, Diana Cheremysynova

Emerging financial crises adversely affect the activities of banking institutions, which requires additional measures of the bank aimed at allocating resources with a minimum level of risk. Developed at the legislative level mechanism of interaction between credit bureaus and bank institutions will help to avoid losses and reduce the risk of damages in the implementation of credit operations. The study proposes to resolve some issues of improving the legislative and regulatory framework on the interaction of the bank lending segment and credit bureaus. The research results can be taken into account when making changes and additions to the current legislative framework. Banking institutions need to interact with credit bureaus, which specialize in collecting and storing information about borrowers. But there are problematic aspects observed in the functioning of the credit bureaus in the Russian Federation, which are analyzed in the article. The theme direction of the study is relevant, since when issuing credit funds a banking institution should minimize the risk of default.

12

Authors: J. V. Adeshara, Hardik P. Patel, G. M. Deheric, R. M. Patel

Assuming that the surfaces of the truncated conical plates are transversely rough and considering the porous structure based on the Kozeny-Carman model, in the transverse magnetic field, the issue of the squeeze film between electrically conductive rough porous surfaces with electrically conductive lubricant is analyzed. The roughness of the surface of the bearing is dependent on a stochastic random variable with non-zero mean, variance and skewedness. After stochastically averaging the equation of Reynolds with regard to the parameter of random roughness, the pressure distribution, which in turn leads to the load carrying capacity, is solved with suitable boundary conditions. The analyses are displayed in both graphic and tabular form. It is known that the bearing roughness is transversely rough in general. Nonetheless, in the case of negative skewed roughness, the condition can be restored to some level by choosing the conductivities of the plate, if there is a negative variance. It is also found that even when there is no flow the magnetic field bearing can sustain a load.

12

Authors: Ekaterina Gribanova

The paper describes a method for solving the procurement optimization problem based on inverse calculations. The method involves solving the unconstrained optimization problem and adjusting the obtained values of arguments subject to the constraint. Compared to conventional nonlinear optimization methods, the proposed method is easier to implement with computer software, since it does not require any determination of additional variables and multiple solutions to an unconstrained optimization problem. A solution to a two-constraint problem using inverse calculations has been considered. In this case, the optimization problem is transformed into a single-constraint problem. Therefore, when constructing a system of equations for determining increments of arguments, the transformed form of the objective function and the constraint are taken into account. This paper discusses a solution to a procurement portfolio development problem for a confectionery company with a limited budget and a target value of contribution margin. The obtained solution was compared with the solution produced by the mathematical software package and the penalty method. The result of this comparison is presented in the paper. The proposed algorithm can be used in systems intended to support the procurement decision making process. The algorithm can also be used to solve quadratic programming problems of the considered form in other fields of research.