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Comparative analysis of RPL protocol objective functions impact on energy consumption in low-power and lossy networks

This bachelor thesis explores the impact of different RPL protocol objective functions on energy consumption in low-power and lossy networks. Given the critical role of low-power and lossy networks in applications like environmental monitoring, industrial automation, and smart cities, optimising energy consumption is paramount. Using the Contiki-NG operating system and the Cooja network simulator, this study conducts a comparative analysis of two primary objective functions: Objective Function Zero and Minimum Rank with Hysteresis Objective Function. Simulations are performed under 18 network scenarios including different node densities (10, 30, 50), node positioning, and receive ratios. The findings indicate that Objective Function Zero generally consumes less energy, particularly in high-density networks and environments with high packet delivery ratios. Conversely, Minimum Rank with Hysteresis Objective Function may be more suitable for dynamic and unpredictable environments despite its higher energy consumption. This research offers practical recommendations for selecting objective functions to optimise the energy consumption of constrained networks, contributing to the development of more sustainable IoT solutions.

Author: Deniss Bogdans

Supervisor: Jeļena Baranova

Degree: Bachelor

Year: 2024

Work Language: English

Development of an Alternative Mean of Compliance for inspecting passenger door stops on Embraer ERJ - 145 using Fluorescent penetrant Non-destructive Testing method.

This bachelor thesis focused on Development of an Alternative Mean of Compliance (AltMoC) for Inspecting the passenger door stops from Embraer ERJ - 145 aircraft Using Non-Destructive Testing Fluorescent penetrant method. The main goal of this work is to simplify the task with the help of a developed inspection for checking a structural component. A structural component is subject to fatigue and physical stress on it, as well as corrosion. Detailed detection of the smallest damage and metal fatigue. The developed AltMoC is aimed at significantly accelerating work processes, making inspection cheaper as well as having a simplified and clear process using penetrant testing. Having carried out research, the Author, carefully select the appropriate method for inspecting a structural component based on the type of material from which it is made, considering its’ its physical and chemical properties. Develop the correct sequence of actions in the instructions. Thanks to this, the workflow time and the risk of errors occurred due to Employees' misunderstanding significantly reduced.

Author: Deniss Zaharovs

Supervisor: Iyad Alomar

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Aviation Engineering

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Research on effective finding of network anomalies in Intrusion Detection Systems using ML/DL methods

In this paper, the process of testing datasets and ML/DL methods using the Weka platform in order to obtain results of their effectiveness and how high the accuracy of detecting network anomalies they provide is described. During the experiment, many ML/DL algorithms and the most common datasets (KDD99, NSL-KDD, UNSW-NB15) were analyzed, as a result of which it was revealed that the best result of detection accuracy and time required on the experiment was produced by the NSL-KDD dataset.

Author: Dmitrijs Bulaks

Supervisor: Jeļena Baranova

Degree: Bachelor

Year: 2024

Work Language: English

Impact of Time Management in Organizing the Events

The thesis is devoted to the study of the organization of events and factors of effective time management, as well as practical applications for its improvement. The thesis considers the history of development of the main concepts and theories of time management, as well as psychological aspects related to effective work with time. Attention is paid to the tools and technologies of time management. Their impact on current and future trends in event management productivity is examined; the results of the research are presented in this paper, followed by conclusions and suggestions for improving time management in small event management companies.The study consists of Introduction, 3 Chapters, Conclusions, Recommendations.Chapter 1 is devoted to the concept, tools and practices of time management, discovered based on scientific articles.Chapter 2 comprises the analysis of event-organising market in Latvia, including the analysis of small companies.Chapter 3 deals with analysis of interviews with managers of event-organising companies and survey of customers.Conclusions were done on the basis of literature study and empirical analysis.Recommendations to the managers of small event-organising companies on time management of events were done on the basis of drawn conclusion.

Author: Dmitrijs Semešins

Supervisor: Jeļena Popova

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Business and Management

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Digital Marketing Strategy of a Company

1. THEORETICAL BASIS OF DIGITAL MARKETING.In this section is methodological and theoretical foundations of digital marketing. The introduction to this area starts by looking at the key elements of digital marketing. Also, the author analyses digital marketing strategies such as content marketing, SEO, contextual advertising, social media strategies, etc. 2. DIGITAL MARKETING OF STREAMING SERVICES.This topic gives a brief introduction to the top music streaming services worldwide, their brief description, and features. The section also shows statistics on the selected market.3. EMPIRICAL STUDY: BEST PRACTICES.This section includes: Researching and analysing the best digital marketing strategies for streaming services, and comparing the performance of the strategies between companies.4. RESULTS.In this section, the survey and the results of the survey, startup trend mining analysis and table with compared results.

Author: Eduards Aņisimovs

Supervisor: Olga Zervina

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Business and Management

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