A Comparative Study of Job Satisfaction in Banking (A Case Study of Public and Private Bank Sectors)

In this study we show the comparative study of job satisfaction in Public and Private Bank sectors. This paper will investigate as to what extent job satisfaction has lead to good working performance in formal organization. The study will examine the factors which influence employee’s job satisfaction in organization such as Job involvement, Organizational commitment, Quality of work life, organizational climate and Job content. This study also represent that the Private bank officers have higher levels of job satisfaction than those from public sectors as they enjoy better facilities and supportive work environment. In order to study the objective primary data were collected with a sample size of 400 which was collected at randomly from 10 equally selected public and private Banks. Finally an attempt has been made to regression and correlation analysis on job satisfaction and variables among the public and private bank employees in Bangladesh. Key words: job satisfaction, banking sectors, contributing variables, Performance analysis.

Optimal coordination of energy sources for microgrid incorporating concepts of locational marginal pricing and energy storage

This research aims to coordinate energy sources for standalone microgrid (MG), incorporating locational marginal pricing (LMP) and energy storage. Two approaches are suggested for the optimal energy management of MG. First, the energy management of a standalone MG is performed utilising the concept of LMP. The objective is to minimise the average LMP to reduce network congestion and power loss costs. Second, energy management is performed using a dual-stage energy management approach. A BESS model is formulated considering charging and discharging characteristics and utilised in this research for dual-stage energy management. The impact of the battery state of charge (SOC) is assessed in the optimal day-ahead operation. An incremental cost factor is included with battery SOC when calculating the system operating cost. A new binary jellyfish search algorithm (BJSA) is developed to solve energy management problems. The suggested BJSA technique is implemented in solving the optimal energy management of MG considering LMP. The simulations of the suggested approach are conducted on the IEEE 14 and 30-bus test systems. Results show that the BJSA technique is more consistent than the binary particle swarm optimisation (BPSO) technique in determining the optimal solution. In addition, the BJSA technique is employed to solve the dual-stage energy management of MG considering BESS. The proposed approach is simulated on the IEEE 14 and 30-bus systems. Results also show that the BJSA technique is superior to the BPSO technique in minimising the operating cost in real-time economic dispatch (ED). The performance of the BJSA and BPSO techniques is exactly similar to the UC schedule with and without BESS considering the IEEE 30-bus system, like the IEEE 14-bus system. The BJSA technique minimises operating costs by up to 5% over the BPSO technique for the UC schedule with power loss. Operating costs are reduced by up to 5% using the BJSA technique rather than the BPSO technique for real-time ED with BESS. However, the BPSO technique is inconsistent and fails to obtain the same results for the IEEE 30-bus system. Overall, the findings confirm the superiority of the suggested BJSA technique and the suggested optimisation approaches in optimising the energy management of MG

Investigation for a suitable screw of a briquetting machine

[Abstract]: Briquetting is a well-established technology. But its crucial part is the screw wear, which has a great influence on the cost of production. The aim of this study is to look for the suitable parameters of screw, which can make this technology attractive to the people. With this objective, the study of existing Bangladeshi screw and a few newly designed screws has been done. Four different types of new screw have been constructed, the design and idea of which are taken from the experience of the Institute of Energy in Vietnam. The remarkable features of the screw are that it is short in length and the thread is not made as an integral part of the base of screw. Different types of pitch and height of screw have been used for this stud

Fibre composites for high pressure pipeline repairs, in-air and subsea: an overview

In 2001 it was reported that in North America alone, corrosion to the Oil & Gas pipeline distribution network cost approximately $2-3.3 billion per annum with 10% of that cost being associated with actual failure of the pipeline. In addition pipelines are also susceptible to erosion and mechanical damage producing further losses in pipe structural integrity. This results in high maintenance costs, possibility of adverse environmental consequences and the costly interruption to product transportation and distribution. The cost and technical challenges of adequately addressing repair are significant and greatly increase for underwater applications particularly with increasing water depth. It therefore induces the need of searching for alternative repair techniques involving new advanced materials for ease of installation and application against adverse environmental effects in the long run. Fibre composite materials provide excellent advantages over conventional metals in engineering practices for many decades. These advantages make fibre composite suitable candidate for effective repair technology. This paper provides a comprehensive review on the recent development and future prospect of using these materials for in-air and underwater pipeline external repairs. Various aspects of technical knowhow; benefits and shortcomings of the repair considerations are also presented

Polymer based filler materials as infill for GFRP pile connector

Recently glass fibre reinforced polymer (GFRP) tubular piles have been developed for civil engineering applications instead of conventional concrete piles. Considering their suitable applications, the new polymer based filling materials are being developed at the University of Southern Queensland as a part of work done for timber pile rehabilitation. This ongoing project aims to replace portion of the deteriorated timber pile by using GFRP piles. Due to good compressive strength, pumpability and workability, the new polymer base materials are to be filled in between GFRP pile and existing timber pile base. An ongoing research program has been initiated to improve fundamental understanding of these materials and to provide the knowledge required for their broad utilization. In this development, sample trial mixes were considered based on several weight percentages of polymer resin, fly ash and sand. Material parameters such as compressive strength, stiffness, shrinkage and gel time were achieved from the experimental investigation. It has been found that most polymer based trial mixed fillers have high compressive strength and considerable plastic region with more than 10% strain. These results imply that the polymer based filling materials are suitable for both compression and tensile loading situations. However, the behaviour of fillers with GFRP pile connector under different loading conditions is yet to be fully understood

An investigation on the student performance in first year fundamental engineering course, Engineering Statics

This paper details a quantitative investigation performed on the student performances in Engineering Statics, a fundamental engineering course. It is one of the highly numerical subjects that students encounter during early stage of their engineering programs and students are expected to complete large numbers of practice problems in order to learn the relevant theories. Historically, the success rate of the students enrolled in this subject was significantly below the average. The major cause for the higher failure rates was attributed to the lack of fundamental knowledge in mathematics. However, this study is intended to investigate the progressive performances of the students who satisfied the entry requirement and enrolled in the subject. The assessment marks were analysed against two categories such as delivery mode and the gender of the students to understand the critical causes of the outcome. Few statistical analyses were performed, and the results are presented in this paper

Flammability characteristics of chemical treated woven hemp fabric

Woven hemp fabric was treated with sodium hydroxide, commercial flame retardant chemical, and combination of both to increase its fire-retardant properties. Treatments of fire-retardant changed the properties of woven hemp fabric such as increased its fabric shrinkage and density of fibres which ranges from 0.67 to 5% and 1.43 to 1.53 g/cm3 respectively. After the treatment, the fire retardancy of the fabric increased tremendously which was observed by the burning, thermogravimetry and limiting oxygen index tests. Some of the samples were not burnt when exposed to flame source and the burning rate needed to be measured under exaggeration of flame at longer time. The limiting oxygen index value increased from 18.6 to 51 after the treatments which explained the scenario happened in the burning tests. Nevertheless, its mechanical properties decreased slightly that ranges from 18 to 32% and 23 to 39% for warp and weft respectively compared to untreated fibre