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Vibration Analysis-Based Fault Diagnosis of Tool Conditions on Electric Motor-Powered Machine Tools Using Convolutional Neural Networks

This thesis explores and evaluates techniques for utilizing vibration analysis and Convolutional Neural Networks (CNNs) to assess the condition of drill bits installed on electric motor-driven drills. By strategically positioning an Inertial Measurement Unit (IMU) sensor to capture acceleration data, a wide range of vibration signals can be gathered in different operational scenarios. The CNN models undergo training and validation utilizing this data to precisely detect various fault conditions and operational states of the drill bits, showcasing the possibility of implementing scalable and reliable fault detection systems in industrial environments. The research attains a Technology Readiness Level (TRL) of 3, as demonstrated by trials that effectively categorize machine conditions using CNNs, hence confirming the critical functions of the proposed technology. The aim of this study is to assess the efficacy of vibration analysis in classifying the operational state of a drilling machine as either good, moderate, or bad.Vibration analysis is a method used to analyze the oscillation patterns of a machine in order to identify problems such as misalignment, imbalance, and wear.

Author: Marawan Mohamed Ahmed Elsayed Youssef

Supervisor: Emmanuel Alejandro Merchan Cruz

Degree: Master

Year: 2024

Work Language: English

Analysis of changes in consumer behavior and their impact on business model improvement

Bachelor thesis “Analysis of changes in consumer behavior and their impact on business model improvement”. Author: Margarita Lazuta. Scientific supervisor: Mg. oec., lecturer Oksana Skorobogatova.Thesis for the Bachelor's degree in “Business and Management”. The thesis contains 67 pages, 28 images, 4 tables, 56 literature sources were used and there are 2 appendices.In the firth part are overviewed the most popular business models and consumer behavior trends from the theoretical point of view.In the second part were researched the economic indicators of the catering market in Latvia. A survey was done to study consumer needs and were overviewed the marketing strategies which are used by public catering companies in Latvia.The third part were analyzed the company’s “Lage Ltd SIA” and their restaurant “Gan Bei” formation and development.In the fourth part author propose new strategy for to improve the company’s “Lage Ltd SIA” in the restaurant “Gan Bei” already existing business model by adapting it to consumer preferences.In the end of the paper, the conclusion of the research result described and are offered recommendations to the company to improve existing business model to better meet consumer needs.

Author: Margarita Lazuta

Supervisor: Oksana Skorobogatova

Degree: Bachelor

Year: 2024

Work Language: Latvian

Study programme: Business and Management

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Digital Marketing Activities of the "Lowine" Company

The purpose of this bachelor thesis is to offer “Lowine” wine bar different, digital marketing activities to attract customers. These activities will be developed based on literature review, interview with expert, potential customer survey, best practices wine bars and wine restaurants in Latvia and in the United States of America. The research results can be useful for the marketing managers of the wine bars (category of mean sum 40-50EUR in the Baltics capitals).The recommendations developed by the author of this bachelor thesis is aimed to engage the customers, increase business activity and improve a small enterprise business performance. The practical significance of this study lies in providing small business owners with valuable insights into the effective use of e-marketing.

Author: Margarita Ucika

Supervisor: Olga Zervina

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Business and Management

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Analyzing the impact of the economic environment on LLC "Rimi Latvia" market position

The bachelor thesis consists of three chapters.The first chapter presents the theoretical aspects of the analysis of the company's financial position. A company's financial condition is important to assess its stability and development potential and is affected by both internal and external factors, including economic conditions.The second chapter describes the activities of SIA "Rimi Latvia". The main competitors of the company are described and compared according to financial aspects. Market analysis examines the various external and internal factors that affect a company's performance, such as social, technological, economic and competitive factors.The third chapter assesses the financial position of SIA "Rimi Latvia" and, based on the results, compares the company's performance with the performance of its main competitors. The operation of SIA "Rimi Latvia" is affected by several external factors, including economic factors (the COVID-19 pandemic, war in Ukraine, price increases, new competitors entering the market), social factors (change in buyer habits, demand for different products) and technological factors (e- proliferation of commerce, growth of mobile apps and online services).

Author: Marija Siliņa

Supervisor: Elīna Gončarova

Degree: Bachelor

Year: 2024

Work Language: Latvian

Study programme: Business and Management

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Development of a Cryptocurrency Trading Bot

"Development of a Cryptocurrency Trading Bot". This work focuses on creating a trading bot that utilizes a grid trading algorithm and integrates with the Binance API to automate trading in the cryptocurrency market. The bot was implemented using the Spring Framework and the Java programming language. It is deployed on an AWS EC2 instance via Elastic Beanstalk, providing REST API services. The development process included comprehensive testing and successful deployment on a server, ensuring the bot's functionality and reliability.

Author: Mihails Gaducevičs

Supervisor: Karina Kostjkina

Degree: Bachelor

Year: 2024

Work Language: English

Study programme: Computer Science

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