Engineering Management articles list

Network on Chips are becoming an important aspect in areas of multiprocessor chip design and high performance computing. Reduction in usage of excess amount of hardware in router design without operating all parameters can improve the performance of the system. The practical review of various routers applied in future of networking is carried out in this paper. Fundamental design considerations and various components involved in router design in terms of communication, energy management and power conversion is summarized in detail. A brief comparison of various routers designed previously has been made along with design aspects for 3D Torus router.

ASHISH MULAJKAR

The work presented in this paper is analysis and design of power efficient Network on Chips (NoCs). NoC architecture, routers, structure of NoC, topologies and their components has been discussed in this work. The parameters likely speed, latency, static and dynamic power is analyzed. This work found better results as compared to previous works.

ASHISH MULAJKAR

Network on a chip is a concept in which a single silicon chip is used to implement the com-munication features of large-scale to very large-scale integration systems. For high-end System on Chip de-signs, Network on Chip is considered the best integrated solution. NoC has several advantages over dedicat-ed wiring and buses i.e. increased bandwidth, low latency, less power consumption and scalability. Reduc-tion in the latency (end-to-end latency and network latency), loss probability, energy consumption and re-sponse time are the basic parameters which are considered by the researchers for the optimization of the networks-on-chip topologies. In this paper we review the most popular technologies and also some recent topologies for interconnection networks. We study their performance and summarize their strengths & weakness.

ASHISH MULAJKAR

One of the unique features of Indian society is prevalence of caste system which was originated thousands of years back to demarcate the people engaged in different occupation or jobs. Initially it was not much rigid but gradually people belonging to upper castes for their own selfish means to maintain their monopoly made this arrangement hereditary and started treating people of lower castes disgracefully. For preservation of this system, people started controlling their women to prevent inter-caste marriages and the concept of endogamy came up. This robbed away many types of freedom from women. For women belonging to lower castes, this situation is worse as they are doubly subjugated on the basis on caste as well as gender. Men belonging to their own caste treat them as secondary beings. This paper throws light on this intersection. How intersection of these two kinds of inequalities place them at the lowest position in Indian society. Dr. B.R. Ambedkar rises as their leader who all his life worked for empowerment of downtrodden section of society. He argues that education is the primary tool for evading these differences among people. He further emphasizes to adopt the concept of exogamy to break the backbone of Indian caste system and to immediately leave a religion or culture which legitimizes such system of inequality among people of the same land.

Swati sharma

One of the unique features of Indian society is prevalence of caste system which was originated thousands of years back to demarcate the people engaged in different occupation or jobs. Initially it was not much rigid but gradually people belonging to upper castes for their own selfish means to maintain their monopoly made this arrangement hereditary and started treating people of lower castes disgracefully. For preservation of this system, people started controlling their women to prevent inter-caste marriages and the concept of endogamy came up. This robbed away many types of freedom from women. For women belonging to lower castes, this situation is worse as they are doubly subjugated on the basis on caste as well as gender. Men belonging to their own caste treat them as secondary beings. This paper throws light on this intersection. How intersection of these two kinds of inequalities place them at the lowest position in Indian society. Dr. B.R. Ambedkar rises as their leader who all his life worked for empowerment of downtrodden section of society. He argues that education is the primary tool for evading these differences among people. He further emphasizes to adopt the concept of exogamy to break the backbone of Indian caste system and to immediately leave a religion or culture which legitimizes such system of inequality among people of the same land.

Swati sharma

Abstract __ Considering the size and relevance of coffee industry to the Ethiopian economy this work presents the design, prototype development, analytical and numerical simulation as well as experimental investigation on an active solar coffee dryer. The solar collector and dryer system configuration has been optimized for minimal pressure drop by incorporating guide vanes and minimizing flow separation tendency using numerical simulation on ANSYS. The effect of air mass flow rate on optimal depth of collector, temperature rise and pressure drop were characterized including the effect of variation in solar insolation using CFD approach. By comparing different dryer configurations based on pressure drop and air flow uniformity, a new dryer configuration prototype was developed. In addition, thermal performance of the solar air heater was evaluated experimentally at three different airflow rates on a collector with corrugated absorber plate and another collector with flat absorber plate. High collector outlet temperature and efficiency were observed in a collector with corrugated absorber plate. The effect of depth of grain, moisture content on wet basis, airflow rate and humidity of air were explored for parametric sensitivity vis-à-vis drying time. Within 5 hours, coffee bean dried from 29% moisture content to 12.3% on a clear sunny day and within 7hours from 19% moisture content to 11.1% on a partially overcast day. Average thermal efficiency of the dryer was found to be 50.5% for clear sunshine day and 36.9% for partial overcast day. A good agreement has been observed between the experimental results and the CFD temperature rise predicted output with a deviation of 7.5%. Analytically predicted drying time compared with experimentally measured drying time within a 12.9% deviation. The cost -to-benefit analysis with a comparative assessment on traditional mode of coffee drying has been done and the payback period is found to be 1.03 years with significant benefits.

Tefera Abera

Brilliant Grid is intended to incorporate progressed correspondence/organizing innovations into electrical power frameworks to make them ''more intelligent''. The current circumstance is that a large portion of the power outages and voltage lists could be forestalled in the event that we have better and quicker specialized gadgets and advancements for the electrical matrix. To make the flow electrical force lattice a Smart Grid, the plan and execution of another correspondence framework for the lattice are two significant fields of examination. Be that as it may, Brilliant Grid projects have just been proposed as of late and a couple of recommendations for forward-looking necessities and starting exploration work have been offered in this field. No efficient audits of correspondence/organizing in Smart Grids have been led at this point. In this manner, we direct an orderly survey of correspondence/organizing innovations in Smart Grid in this paper, including correspondence/organizing engineering, distinctive correspondence innovations that would be utilized into this design, nature of administration (QoS), upgrading the use of resources, control and the board, and so forth.

Dr.A.Shaji George

Solar Energy is the prime important source of energy, and it has continued to gain popularity globally. As of 2018, about 486 GW of solar PV was installed worldwide. One of the key requirements for socio-economic improvement in any nation of the world is the provision of dependable electricity supply systems. Recently, there is a massive growth in access to solar electricity in several Africa countries, notably South Africa, Egypt, Morocco, and Algeria. As a result, it decreases the global population without access to electricity with an appreciable value. This paper review the present state of solar energy capacity in the world also identifies vital approaches of improving their functionality, reliability, and affordability as well as the essential method that policymakers may implement in the future. The result shows that there is a recurrent growth in solar energy annually and as at the end of 2018 Asia with the largest capacity of 56.58%, while Central America and the Caribbean have the lowest installed capacity of 0.36%. As the request for an uninterrupted supply increases in different regions, progressive builders are embracing solar photovoltaics (PV) renewable energy as an option for their customers.

Najeem Olawale Adelakun

The covid-19 lockdown has made many people of the middle- and lower-income class think and reinvent themselves to sustain in this crisis. It was difficult for lower- and middle-income class people to adjust to the situation of lockdown. Government and private institutions have reduced the salaries to the employees in view of the 40-day lockdown. Lockdown has made people rethink and reinvent to sustain in this tough time. People have modified their work and style of working to acclimatize to lockdown. Work from home in the software industry, telemedicine and video consulting in the healthcare industry, online classes and tutoring in the education system, farm to house vegetable delivery system in the agricultural sector, the surge in online pharmacy business, MSME- handmade mask industry, MedTech zones for demand in medical equipment. Private sector isolation centres in partnership with reputed hospitals. We throw light on some of these innovative ideas that could change the present and future of living in difficult times. innovative ideas for students during lockdown

Kamal Singh

BACKGROUND AND OBJECTIVES: The requirements of stakeholders for the qualitative transformation of the approaches of industrial enterprises – environmental users to introduction of economic activities cause an increase in the role of environmental responsibility as their strategic priority for development. The purpose of the study is to improve the practical tools for calculating and developing strategies for the development of environmental responsibility of industrial enterprises. METHODS: In the study, tools for assessing the level of environmental initiative of an industrial enterprise as an integrated indicator of environmental initiative are suggested. It is expressed as the arithmetic mean of ten factors of environmentally proactive behavior of industrial enterprises. To achieve the objectives of the study, methods of criterion-qualitative assessment are suggested, such as expert assessment and survey. The assessment system includes ten factors rated on a 10-point scale and weighted by significance. The integrated indicator of the environmental initiative acquires values within, is a stimulant of environmental responsibility. FINDING: One justified a scientific and methodological approach to assessing the level of environmental responsibility or the industrial enterprise, including calculation of the corresponding taxonomic indicator with consideration of the quantitative factors of its environmental responsibility and the qualitative and quantitative factors of environmental initiative. This enables the possibility to assess the relevant state of environmental responsibility and determine the volumes for further correction of the ecological strategy for the development of the industrial enterprise. CONCLUSION: As a conclusion, practical recommendations are made for the implementation of organizational and economic support of environmental responsibility in the development strategy of an industrial enterprise taking into account the impact of its environmental initiative and environmental duty. The level of environmental responsibility of industrial enterprises taken into account when developing recommendations on adjustment of their environmental strategy of development is determined, which as a whole allowed to form organizational and economic support for environmental responsibility of the enterprises under study. Thus, an enterprise, which only ensures compliance with environmental emission standards (compensation strategy or sufficiency strategy) cannot be characterized by a high level of environmental responsibility. To ensure a high level of environmental responsibility, an industrial enterprise must rely on a proactive strategy or a strategy for sustainable use of nature.

Professor J. Nouri

During this research work, a theoretical study was done to compare the boiler efficiency by using two different fuels, i.e. commercial sawdust briquette and biomass briquette prepared using 850 μ coconut leaves, with sawdust as the binder. For preparing the biomass briquettes to leave of coconut were gathered, dried, milled, and sieved and sizes of 850μ were selected. The sized coconut leaves were then mixed in the company of sawdust that worked as a binder in 1:2 ratios, and compressed by means of a piston-type briquette machine, which was fabricated for the same. Ultimate and proximate analyses were carried out on the biomass briquette to determine their various compositions. Results from analysis were used to calculate the boiler efficiency by the indirect method using Indian Standard Boiler Efficiency IS 8753. Results from the analysis showed that boiler efficiency by indirect method for commercial sawdust briquette is 68.80% and boiler efficiency by indirect method for coconut leaves of 850μ, with sawdust as a binder is 61.17%. The reason for higher boiler efficiency for commercial sawdust briquette is due to its higher calorific value (4451.37KCal/gm) when compared to that coconut leaves briquette made from 850μ size with sawdust as a binder (3672.45KCal/gm). From proximate and ultimate analysis, the results showed a reduction in ash content percentage, moisture content, and rise in volatile matter percentage, when the comparison was along with the marketable sawdust briquette, which is of considerable significance. Additional properties akin to the percentage of hydrogen, fixed carbon, sulfur, nitrogen, and oxygen were roughly the same as that of the commercially available sawdust briquettes. After calculating the boiler efficiency of the two biomass briquettes, coconut leaves with sawdust as binder exhibited the most optimistic trait and as it is more easily and readily available, thus making it more economically viable.

Dr.Deepak KB

Now a day’s contribution of Electronic banking towards economic development plays a crucial role in developing countries like India. Banks are no longer restricted to traditional banking rather it is shifted to the virtual banking system. Customers are experiences more feasible in banking operations because of Information technology. The banks are adopting IT-enabled tools and techniques for banking operations which improve in offering quality service to the customers. In traditional banking customers has to visit bank branches to avail banking services. Now with the ATMs, Internet banking, Mobile banking and Information Technology-enabled services are replacing the traditional method of service. In the recent days banks are concentrating on value-based service through E-banking. The present study throws a light on the growth of Electronic banking and its product which are used in the banking sector.

Kamal Singh

Frequent power outages arising from poor state of electricity infrastructure is hindering Nigeria’s socio-economic growth. Port Harcourt is one of the foremost cities in Nigeria where business and social activities are becoming rapidly more dependent on electricity. Any power outage, even of the shortest duration, in Port Harcourt City has severe socio-economic impacts and there is no likelihood that the phenomenon would abate even in the nearest future. This research investigated the causes of incessant power outages in Port Harcourt City and suggested remedial measures to reverse the trend. The researcher relied on datacollected from primary sources through personal observations, interviews and discussions with residents of the City and from secondary sources such as the National Bureau of Statistics (NBS), the Manufacturers Association of Nigeria (MAN) and current scholarly literature relating to this research, over a period of twelve months. The study used a descriptive and the non-parametric simple percentages technique in analysing the data so collected and in drawing conclusions. It was found that inadequate power generating capacity, shortage of gas, weak and dilapidated electrical transmission and distribution network, inadequate power infrastructure facilities, etc. are the chief causes of incessant power outages in the Port Harcourt metropolis. The paper recommends, among others, immediate upgrade of existing power infrastructure facilities, review of government policy on domestic gas supply and stiff statutory legislation on vandalism as measures to stabilise electricity supply in the Port Harcourt city.

Dr. Hachimenum Amadi

This mathematical model forms machine cells, optimises the costs of unassigned machines and components, and designs the shop floor cell layout to have minimal movement of materials. The complete similarity measure algorithm forms machine cells and part families in a refined form. Later, exceptional elements are eliminated in the optimisation model by using machine duplication and sub-contracting of parts. Then the shop floor layout is designed to have optimised material movements between and within cells. An evaluation of the cell formation algorithm’ performance is done on the benchmark problems of various batch sizes to reveal the process’s capability compared with other similar methods. The data of machining times are acquired and tabulated in a part incidence matrix, which is used as input for the algorithm. The results from the linear programming optimisation model are that costs are saved, machines are duplicated, parts are sub-contracted, and there are inter- and intra-cellular movements. Finally, the output of the inbound facility design is the floor layout, which has machine cell clusters within the optimised floor area.

S RAMESH

This proposed work is used to optimize the costs of exceptional elements of machine cells for a variety of components in changing environments to have reduced material movements in cell layout. The exceptional ele¬ments are eliminated in the optimization model by doing machine duplication and part subcontract. Then the shop floor layout is designed to have optimized material movements between cells and within a cell. The result of a linear programming optimization model is cost savings, machines duplicated, parts subcon¬tracted, inter intracellular movements. Finally, the output of the inbound facility design is the floor layout which has machine cell clusters with optimized floor areas. The optimization model is provided with budg¬etary constraints for duplication and the economic tradeoff between machine duplication and part subcontract. Cell layout is prepared to reveal the saving in floor area and material movement lengths than in process layout with the help of distance matrix and dimensions of cells.

S RAMESH

The presented mathematical model is used to form machine cells, optimize costs of exceptional elements and design the shop floor layout for various demands of components. The complete similarity measure algorithm forms machine cells and part families in a refined form. Later, exceptional elements are eliminated in linear programming optimization model by using machine duplication and part subcontract. Then the shop floor layout is designed to have optimized material movements between cells and within a cell. The performance evaluation of cell formation algorithm is done on case studies of various batch sizes to give the process capability compared with other similar methods. The result from a linear programming optimization model is cost savings, machines duplicated, parts subcontracted, inter intra cellular movements. Finally, the output of inbound facility design is the floor layout which has machine cell clusters with optimized floor area.

S RAMESH

The Cellular Manufacturing is adopted in batch type manufacturing industries nowadays for their production with increased productivity, less cost and time with effective control. The proposed optimization model is used to determine the cost of machine cells, i.e., machine duplication, part subcontract, inter intra cellular movements cost and cost of production associated with machine cell, such as machine reconfiguration and part inventory considering machine flexibility for various time periods. Initially, mathematical model is proposed to calculate machine cell cost with and without considering machine flexibility and then another lpp integer model is proposed to calculate the machine cell production and associated cost for the changes in time period, part type and volume considering machine flexibility. The manufacturing data in the incidence matrix and machine cell, part family data in the block diagonal form are given as input to the optimization programming language Cplex and the output are given for the two mathematical models. The data related to machine duplication, part subcontract, inter intra cellular movement; machine reconfiguration and part inventory are given. Two dimensional shop floor layouts are presented in rectilinear coordinates for all the problems for easy analysis of material movement length and shop floor area

S RAMESH

The Cellular Manufacturing is adopted in batch type manufacturing industries nowadays for their production with increased productivity, less cost and time with effective control. The proposed optimization model is used to determine the cost of machine cells, i.e., machine duplication, part subcontract, inter intra cellular movements cost and cost of production associated with machine cell, such as machine reconfiguration and part inventory considering machine flexibility for various time periods. Initially, a mathematical model is proposed to calculate machine cell cost with and without considering machine flexibility, and then another lpp integer model is proposed to calculate the machine cell production and associated cost for the changes in the time period, part type, and volume considering machine flexibility. The manufacturing data in the incidence matrix and machine cell, and part family data in the block diagonal form are given as input to the optimization programming language Cplex and the output is given for the two mathematical models. The data relating to machine duplication, part subcontract, inter intracellular movement; machine reconfiguration, and part inventory are given. Two-dimensional shop floor layouts are presented in rectilinear coordinates for all the problems for easy analysis of material movement length and shop floor area

S RAMESH

Objective: Improving quality work by infusing a “sense of belongingness” in lowest-level workers. The present work focuses on the management of human resources in an enterprise where contract workers are involved in carrying out quality work related to the parent organisation. In today’s world, where the number of supervisors has reduced significantly, it is a challenge to maintain the quality of work at a satisfactory level. The paper proposes to enhance the quality of work by infusing a “sense of belongingness” into lowest-level workers. Methodologies adopted: Case studies. The first case study was conducted between 2007-2011 during a project related to Rural Electrification Work in the Bokaro district under the scheme RGGVY. The author was deputed to supervise the rural electrification work of 300 villages with thousands of kilometres of 11kv and 415V distribution lines, along with over 400 distribution transformers in four blocks of the Bokaro district in Jharkhand. Contractors engaged local workers for erection of all infrastructure. The author explained the process of erection to local communities and brought about a sense of belongingness in them towards the infrastructure being developed. The second case review was conducted between 2013-16 at Chandrapura, Bokaro, during the operation and maintenance work of the 220KV switchyard. Six workers were involved in the maintenance work of the switchyard. They rectified faults during emergencies and took care of housekeeping. However, they only followed orders and never worked proactively. The author divided the workplace into eighteen parts, each maintaining three parts. During monthly walk-in inspections, one worker was awarded as the best contractor’s employee of the month of that section, which introduced a sense of competition among them. Analysis: During the first case study, after pointing out the benefits of the infrastructure being developed and how the quality of work will help in its sustainability for an extended period, villagers realised its importance in their well-being. As a result, they kept vigil over the contractor’s work during the erection process. In second case study, the repetitive external motivation (awards and appreciation) infused a “sense of belongingness” in them. Thus, all employees started functioning proactively. As a result, the occurrence of electrical faults was reduced drastically, and housekeeping improved. Findings: These two case studies lead the author to coin the term “sense of belongingness”, which can lead to improve the quality of work by the lowest-level workers in a company. There are five ways to develop a “Sense of Belongingness” (SOB) among workers- external motivation, which can lead to internal motivation; mutual respect; a sense of duty (every person has their own responsibility); brainstorming sessions (to make them feel as an integral part of the department); encouraging them to do more than expected. Conclusion: All these steps help to develop a “sense of belongingness” among the lowest-level workers in an organisation. Without these principles, it will be a challenge to achieve quality work. The paper addresses all the processes in detail to improve the work culture in a department and, ultimately, an organisation.

RAJIV RANJAN SINHA

The need for renewable energy sources in addressing global energy demands is growing, especially in Nigeria where electricity demand often exceeds supply. Solar photovoltaic (PV) systems have become a viable solution, with federal universities in Nigeria, as major electricity consumers, recognizing their potential. However, determining the right size of PV systems for individual faculties within these universities is a complex task. This study attempted to simplify this process by introducing an innovative approach to size PV systems in these faculties. The research method used the Extended Kalman Artificial Neural Network (EKF-ANN) and the Crow Search Algorithm (CSA) to enhance the accuracy of PV system sizing. Data was collected on the study site, load demand, weather conditions, system components, and operational control and systems models to establish sizing criteria. The study focused on the optimal size of a solar PV system at the Faculty of Law building, University of Port-Harcourt, and how to improve its accuracy. The results showed that using global solar insolation parameters, EKF-ANN predicted values for global temperature, flock size, and maximal iteration. This optimized system could generate surplus power for effective grid supply. The study found that the optimal size of the series-connected panels for the Faculty of Law building was 96, 83, 73, and 65 units, with corresponding insolation values ranging from 3.737 to 4.368 kW/m2. It was concluded that the combination of CSA and EKF-ANN in solar PV sizing is suitable for achieving optimal outcomes for energy storage and grid supply. Nonetheless, the study recommended additional investigation into real-time and grid-connected solutions to enhance the proposed approach's effectiveness.

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