Showing papers by "Higher College of Technology published in 2022"

Comprehensive Analysis on Security Threats Prevalent in IoT-Based Smart Farming Systems

Abstract: Smart farming is a vital notion for the development of agriculture and food processing industries globally. Industrial revolution in computing and digital network turned agriculture industry to a digitalized and automated technology. Manual and mechanical tools are replaced by tools that are controlled by mobile phones, drones and Web-based applications. IoT is the major applicant in smart farming that controls sensors in devices and data analysis by remote servers. Security is deployed as built-in mechanisms in the devices or as software tools implemented in the mobile devices, sensor systems and machines that are remotely controlled. Protocol-based security is provided to data that are collected from the fields and to the data that are transmitted to remote servers for processing. However, in recent years vulnerabilities in smart farming applications are demoralized which ensued smart farming systems being victimized to cyber-attacks. This research work provides insight analysis on several security threats that are being subjugating smart farming devices and processes. This paper will provide intrigue on vulnerabilities existing in smart farming systems and the threats that exploit them.

Synchronization control of externally disturbed chaotic spacecraft in pre-assigned settling time:

Abstract: This article reports the design of a novel finite-time robust nonlinear controller for the synchronization of two identical chaotic spacecraft. The proposed controller does not cancel nonlinear ter...

Blockchain-Based Fog Computing Model (BFCM) for IoT Smart Cities

Abstract: Over the past few years, the necessity of smart city has grown considerably. The smart city infrastructure grasps several technologies like Internet of Things, blockchain, and fog and cloud computing to form sustainable development of innovative applications for intellectual data processing, control systems, and communications between heterogeneous network infrastructures. Some of the smart city’s initiatives are green energy, water and pollution management, smart transportation, wireless Internet services, and promotion of local commerce that incorporate technologies in infrastructure to extenuate many of the entanglements. Blockchain provides decentralized architecture with the list of records called blocks, linked using cryptography for built-in security to strengthen the trust and integrity of data transactions. Fog computing acts as a significant place to analyze the IoT data gathered from the near sensor devices at the edge of the network. The network edge performs the data processing for smart city applications and reduces the energy consumption for communication in IoT environment. But, the downside of the technology’s implementation is it faces multiple challenges like security, data privacy, data integrity, platform dependencies, and resource management. This chapter discusses a conceptual framework with the dimensions (1) technology, (2) human, and (3) organization and reconnoitring the challenges of digital technologies with the support of blockchain-based fog computing model which reduces energy consumption and latency in data communication and improves security features. At the end of this chapter, the authors present suggestions to get rid of the gap and challenges in connecting the cities and citizens to governance, education, and regulation.

Viral Marketing: A New Horizon and Emerging Challenges

Abstract: While companies have long been using electronic processes, the Internet and other digital technologies are packed with new and innovative ways to give customers more value. This challenge not only illustrates the basic concepts of traditional marketing but also modern marketing practices. It is important that businesses connect with customers more likely to gain their attention. It is also important for an advertisement campaign to be effective in being able to engage, surprise and enjoy users in promoting a brand or products spontaneously and induce word of mouth. For this reason, companies use a variety of communication methods, in particular online communication and digital marketing. Presently, marketing environment was revolutionised by the introduction of the internet and modern technology. In a new age of communication technology, the emphasis is evolving on marketing and consumer behaviour. One of the many marketing concepts is the era of interruption marketing, defined by all ads that capture the attention of the consumer as he does something else that comes to an end when new trends appear. Viral marketing can be one of the most popular breakdown marketing. Viral marketing is a marketing form that contacts users, in particular, through word of mouth on the Internet. Viral marketing has become more and more relevant in recent decades as social media networks such as Facebook, YouTube and Twitter are growing. The nature of this study is theoretical and covers related theories and literature. In this respect, the aim of the paper is to discuss the opportunities and challenges for marketers faced in a current environment presented by viral marketing. In a new age of communication technology, the emphasis is evolving on marketing and consumer behaviour. Diverse factors that directly or indirectly influence viral marketing are also discussed. Following the principles of viral marketing and how people communicate, a comprehensive analysis of key issues in the nature of viral marketing strategies will be introduced. This will be followed by an evaluation of the relevant subjects and possible risks. Finally, there will be a brief answer to the question of whether viral marketing is a critical new dimension to current century marketing.

Synthesis of transparent bio-electrodes for biophysiological measurements based on modified graphene oxide.

Abstract: The main objective of this work was to fabricate smart nanocomposite transparent conductive biophysiological electrodes based on modified graphene oxide (GO). The GO is abundant, flexible conductors that can be formulated as a transparent sheet and thereby alleviate the drawbacks of using indium tin oxide in transparent electrodes, like its scarcity, brittleness, and cost. GO was synthesized by a modified version of Hummers' method under highly acidic conditions with sulfuric acid and showed good distribution at a high temperature of 90 °C. Polyvinyl alcohol (PVA) was used as a polymer host in the composite. Glycerol (Gl) was used to increase the flexibility and conductivity through an esterification reaction. Characteristic techniques were used to detect the morphology and structure of GO fillers and their polymer composites, such as transmission electron microscopy, x-ray diffraction, scanning electron microscopy and Fourier transform infrared spectroscopy. The GO/Gl/PVA transparent nanocomposite was tested for the synthesis of electrocardiogram (ECG) and electrodermal (EDA) electrodes. The Biopac device was used to evaluate the behavior of the GO/Gl/PVA plastic transparent electrode in comparison to the GO/Gl/PVA black electrode and a commercial one. The results indicated improved efficiency of the GO/Gl/PVA ECG transparent electrode. The GO/Gl/PVA EDA electrode produced signals with higher conductivity and lower noise than the commercial electrode.

Survey Forms for Data Collection: Key Considerations

Abstract: Data collection is done through various methods including but not limited to surveys, interviews, observations, document analysis, focus groups, and oral histories. Each of these methods employs data gathering tools in order to facilitate the collection of information or data. In this section, the survey method, particularly the survey instrument or survey form, is discussed. Specifically, this chapter will focus on the fundamental factors to consider when developing the form to ensure coming up with relevant, unbiased, and focused questions, which will yield relevant and appropriate answers. In addition, considerations to take into account for proper administration of a survey form will be covered as well as the guidelines for a better and more accurate interpretation of survey data.

Invocation of Multi-Cloud Infrastructure Services in Web-Based Semantic Discovery System

Abstract: In the present multi-cloud climate, the administrations offered by different cloud specialist co-ops appear to be altogether indistinguishable as for functionalities even still they vary as far as value, the computational force, stockpiling strategy, and so on. Indeed, even the generally utilized web search tools like Google and MSN neglect to distinguish proper cloud benefits that would fulfill client necessities. A cloud service essentially incorporates set of resources that needs to be composed dynamically between service provider and service broker and must be virtualized with respect to the requirements on an on-demand basis. With the development in the amount of organizations, there is an augmentation pursued and execution of cloud organizations, and making multi-cloud organization ID and disclosure emerged as a troublesome task. It is a result of changed organization depictions, non-standardized naming shows, heterogeneity in sort, and features of cloud organizations. The semantic question processor is the crucial area in this proposed structure, which receives customer, shows commonsense requirements from a GUI for the duration of the disclosure degree, and attempts to make the RDF request to locate semantically associated data in cloud organizations, and later the semantic rating of all of the recuperated cloud groups is resolved with the assistance of semantic likeness work. Finally, tests were coordinated to evaluate the request for profitability in assurance of cloud organizations subject to precision appraisal gauges, for instance, accuracy, review, and F-measure.

The Role of Effective Inventory Management System on Customers’ Satisfaction; The Case Study of Ethiopia Electric Utility, Northeast Region Store Dessie

Abstract: Various continuous utility management activities have been pursued by the Ethiopian Electric Power Company (EEPCo), the state-owned monopoly that produces, transmits, distributes and sells electric power nationally. However, based on an organizational review of the vertically integrated state-owned Ethiopian electricity company undertaken by IPA Energy and Water Economics, a major organizational reform could bring acceleration in business operations and achievement of corporate goals. In general, the main outcome of this research will be examining the role of an effective inventory management system on customers’ satisfaction. Inventory management is an important factor in successful customers’ satisfaction. The researcher uses a case-study style with some practical modifications to match the contextual requirements. In this research, data mining, machine learning and data science methods were applied to the data detected on Twitter. Also in this study, text mining methods were applied to the data collected on Twitter. In total, 142,000 tweets were collected. It was observed that the homogeneity of the data set increased the success rate. Besides, different machine learning algorithms were tried within the scope of the study and results with high success rates were tried to be obtained. The highest success rate was obtained with the naive Bayes (kernel) algorithm with 52.09%. As a result of applied machine learning algorithms, it has been observed that the effective stock management system is associated with customer satisfaction from sentence structures and words used, concerning the thesis in question.

A unified approach to dynamic Hardy-type and Copson-type inequalities

Abstract: In this paper we establish a unified treatment of dynamic Hardy-type and Copson-type inequalities. More precisely, we derive a pair of dynamic inequalities which represent time scales extensions of the corresponding recent relations in the classical real setting. Our main results are derived by virtue of the time scales Holder's inequality, the time scales variant of the Fubini theorem and the time scales power rules of integration. As an application, our results are compared with some previously known results from the literature.