Application Development Using Microservice Architecture

Application development has always been a complex process. An application, once developed, also needs to be maintained and enhanced to add new requirements. Traditionally the application has been a monolithic entity. Different components in the application are tightly coupled and making a change has always been challenging. Microservice architecture breaks away from this monolithic approach and arranges the different functionalities as services. In a microservice architecture, individual services are developed to perform one function only. This report demonstrates the application development process using the Microservice architecture. It explains the design, development, and deployment of a Microservice-based application. Market Place is an e-commerce application that consists of a collection of microservices working together to provide a buyer and seller platform to individuals. This application will allow sellers to showcase their products on this platform. The application consists of the following microservices: Product Microservice, Order Microservice, UI Microservice, and database Microservice. Similarly, the buyers can connect with the sellers directly in this application. This application is developed using the Spring Microservice framework, the services are hosted in Kubernetes. Docker is used for the containerization of services

NFV Based Gateways for Virtualized Wireless Sensors Networks: A Case Study

Virtualization enables the sharing of a same wireless sensor network (WSN) by multiple applications. However, in heterogeneous environments, virtualized wireless sensor networks (VWSN) raises new challenges such as the need for on-the-fly, dynamic, elastic and scalable provisioning of gateways. Network Functions Virtualization (NFV) is an emerging paradigm that can certainly aid in tackling these new challenges. It leverages standard virtualization technology to consolidate special-purpose network elements on top of commodity hardware. This article presents a case study on NFV based gateways for VWSNs. In the study, a VWSN gateway provider, operates and manages an NFV based infrastructure. We use two different brands of wireless sensors. The NFV infrastructure makes possible the dynamic, elastic and scalable deployment of gateway modules in this heterogeneous VWSN environment. The prototype built with Openstack as platform is described

Influence of Stakeholders in Developing Green Banking Products in Bangladesh

Environmental concern is trying to control the patterns of consumers’ consumption and behavior of manufacturing industries and business enterprises worldwide since climate change issues has been considered as a global challenge. After so many argumentations in the developed countries, it has become an incessant public endearment in the developing countries like Bangladesh, as the level of environmental deterioration has picked up to the mountains. Many measures have been taken into account while adapting to climate changes, but the actions are inconsistent in many cases especially in the financial sector (most appropriately in the banking sector). This study aims to highlight the supreme benefits, encountering challenges, strategic aspects of Green Banking with two major objectives. First one is to caricature the existing scenario of green banking practice in Bangladesh and the other one is to accentuate how individual and also institutional stakeholder forces such as regulatory, managerial or environmental, that can affect the deliberate environmental behavior of banks performing in Bangladesh. The findings suggest that banks should go green and play a pro-active role to take environmental aspects for functional improvements and changing client habits in banking business. Use of appropriate environmental technologies and management systems will not only be useful for environment, but also provide benefits as greater operational efficiencies. After using both descriptive and inferential statistics analysis, this study also advocacy for the necessity of stakeholder’s influences in green banking practice and recommend some indication for Government, the whole banking sector and for the business community

Addressing Voluntary Turnover in Manufacturing Sectors: An Empirical Study

oai:ojs.pkp.sfu.ca:article/8Main objectives: Voluntary turnover of employees are increasingly becoming serious problems in manufacturing sectors. Turnover creates a hindrance to practical access to ensure a continuous production process. That is why, turnover prediction model was proposed to address such problem in manufacturing organizations. Background problems: Despite the introduction of automation in manufacturing-based organizations across the world, Human resources are still one of the key determinants of production and Voluntary employee turnover still remain the barrier to remove such problem.  Novelty: The study took broad aspects resulting in voluntary turnover firstly and applied the multinomial regression and multilayer perceptron model for analyzing categorical data. Research method: Along with the descriptive analysis, the research applied multinomial regression and multilayer perceptron model to analyze data. Besides, Secondary data of manufacturing-based organization was collected from kaggle.com archive for the study purpose. Findings: Table 2 to 8 display the empirical findings of the study. Table 5 explained correlation and table 6 showed regression results of the study. Correlations showed that performance score and complaints directly contribute to the turnover decision, while multinomial regression proved that error, performance score, pay, complaints, abutments lead to the voluntary turnover decision. Contribution: The findings contribute to the literature by identifying different causes of voluntary turnover in manufacturing organizations. The study will help the manufacturing organizations to address the voluntary turnover. Conclusions: The different independent variables (the reason for termination, performance score, pay, error, and _90_days, etc.) are identified to suggest the possible action to be taken by the organization to minimize the influence of voluntary turnover. Manufacturing organizations may be able to take necessary actions to recruit or retain the existing workers with the identification of workers who may leave the organizations

Theory of Planned Behavior to Understand Commuter’s Perception towards Mass Rapid Transit in Dhaka City, Bangladesh

The Dhaka Metro Rail (DMR) has been constructed as part of the Dhaka Transport Coordination Authority’s 20-year Strategic Transport Plan to reduce traffic congestion in Dhaka, the capital city of Bangladesh. The DMR is the first urban rail transit system in Bangladesh and has the potential to change the existing modal share. Commuters have mixed responses about the daily commuting on the DMR and mode choice behavior. This study analyses the commuters’ perception of a modal shift towards the DMR by applying the theory of planned behavior (TPB). The structural equation model (SEM) used environmental concern and socio-demographic factors as additional explanatory variables to improve the explanatory capability of the TPB. A questionnaire survey was administrated using an online survey and validated via an in-person interview to collect the commuters’ responses. The results reveal that environmental concern is the most significant contributor to commuters’ perceptions of a modal shift towards the DMR in Dhaka City, followed by the attitude and perceived behavioral control of the respondents. The findings offer valuable insights for the DMR and other mass rapid transit service operators for policy-making in Dhaka and other cities with similar socio-economic demographics in the world

High-performance antenna design for IoT, wearable, and 5G communications

Advances in ubiquitous antenna technology is driven by the continuous demand for Internet of Things (IoT) products. To date, the industry has been addressing these demands by enhancing the signaling strength, speed, operating bandwidth, etc which facilitated different generations of wireless technology (1G, 2G, 3G, 4G, and 5G). Several unintended factors have undermined the benefit from the advances in flexible inkjet printed Antenna of Things (AoT) products. Notably, the challenges associated with these are to maintain constant conductive performance at flexible or reconfigurable conditions. Previous studies emphasized more on the design improvements instead of establishing an ideal printing condition for antenna implementation. This research aims to establish a unique, and cost-effective inkjet printing properties on the photo paper using silver nano ink. This step is followed by the fabrication of an antenna and comparing the response with relatively similar antenna architecture with the rigid FR4 substrate. After printing optimization, and fabrication, the flexible printed pattern was subjected to several repetitive rolling and bending test. The results confirm the robustness of the specimen. Since a single ultra-wideband (UWB) antenna can replace many single narrow-banded antennas, a UWB antenna was implemented on photo paper with the optimized printing methods. The antenna operates over 3.2-30 GHz frequency range and compliant with UWB standards. Finally, a new 5G phased array antenna design is proposed in order to keep pace with the future IoT and high-speed 5G communication

Quality versus volume of carbon disclosures and carbon reduction targets: Evidence from UK higher education institutions

Purpose: This study aims to investigate the relationship between the quality and volume of carbon emission disclosures (CED) in UK higher educational institutions (HEIs), with an emphasis on the impact of the Higher Education Funding Council of England (HEFCE) carbon reduction target on such disclosures. Design/methodology/approach: Based on stewardship theory, this study explores the decision usefulness of the CED by HEIs, i.e. whether a larger volume of CED means that it is more useful to readers and stakeholders. A framework was developed to measure the CED quality. The relationships between CED volume and quality were examined using the ordered probit regression model. Findings: CED volume in annual reports and HEFCE carbon reduction target were found to have a significant positive impact on CED quality. There exists a void in research with carbon disclosures by HEIs, an area which has been widely researched with regard to profit-seeking organisations. The study adds to the earlier related studies by its contribution about HEIs to the disclosure literature. Research limitations/implications: The study is distinct in investigating the relationship between volume and quality of CED by HEIs. However, the impact of CED would need to be clear to motivate the HEIs to engage in such disclosure. Thus, future studies should investigate the impact of both volume and quality of CED on reputation. Originality/value: The study recognises that the characteristics of HEIs are distinct from profit-seeking organisations, which have been widely researched in literature. Generalising the research studies on profit-oriented companies for the most publicly funded UK HEIs may mislead any outcome. This study is distinct from the reader’s point of view in exploring whether more CED is more useful in better decision-making