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AI-based business process automation
No full textOvaj diplomski rad istražuje primjenu umjetne inteligencije u automatizaciji poslovnih
procesa malih i srednjih poduzeća, s posebnim naglaskom na praktičnu primjenu AI alata u
stvarnim poslovnim okruženjima. Kroz dvije studije slučaja – razvoj AI chatbota za
korisničku podršku u sektoru elektromobilnosti i automatizaciju procesa izrade ponuda za
kongresna putovanja u turističkoj agenciji – prikazano je kako napredne tehnologije mogu
poboljšati operativnu učinkovitost, smanjiti vrijeme obrade te povećati skalabilnost usluga.
Rad se temelji na korištenju alata koji omogućuju brzo i fleksibilno razvijanje rješenja bez
potrebe za klasičnim programiranjem, čime se otvara mogućnost šire primjene i u manje
tehnološki razvijenim poduzećima. Analizirane su ključne komponente sustava: strukturirano
prikupljanje podataka, korištenje jezičnih modela za analizu i generiranje teksta, kao i
integracija s vanjskim API servisima (npr. za letove, smještaj, transfere).
Rezultati pokazuju konkretne prednosti primjene ovakvih rješenja - značajna ušteda vremena,
smanjenje potrebe za ručnim radom, povećanje preciznosti i poboljšano korisničko iskustvo.
Uz prednosti, identificirani su i izazovi poput tehničke kompleksnosti, problema s
dostupnošću API-jeva i potrebe za dodatnim iteracijama u implementaciji.
Zaključno, rad potvrđuje potencijal AI automatizacije u digitalnoj transformaciji poslovanja
malih i srednjih poduzeća.This thesis explores the application of artificial intelligence in the automation of business
processes within small and medium-sized enterprises, with a particular focus on the practical
use of AI tools in real business environments. Through two case studies – the development of
an AI chatbot for customer support in the electromobility sector and the automation of proposal
generation for congress travel in a travel agency – the thesis demonstrates how advanced
technologies can improve operational efficiency, reduce processing time, and increase service
scalability.
The work is based on the use of no-code and low-code platforms, which enable fast and flexible
development without the need for traditional programming. This approach makes such
technologies accessible even to companies with limited technological capabilities. Key
components of the system are analyzed: structured data collection, the use of language models
for analysis and text generation, and integration with external API services (e.g., flights,
accommodation, transfers).
The results show clear advantages of applying such solutions – significant time savings, reduced
manual workload, improved accuracy, and enhanced user experience. In addition to the
benefits, the thesis also identifies challenges such as technical complexity, limited access to
certain APIs, and the need for further development and iterations during implementation.
In conclusion, the thesis confirms the potential of AI-powered automation in the digital
transformation of small and medium-sized businesses
Influence of noise from old and new generation commercial aircraft on the health of flight and cabin crew
No full textBuka, kao jedan od rastućih problema u zračnom prometu, negativno utječe ne samo na putnike, stanovništvo i okoliš, već i na zdravlje letačkog i kabinskog osoblja. Cilj ovoga rada je usporediti utjecaj buke zrakoplova stare generacije (pod kojeg se za svrhe ovoga rada smatra zrakoplov Dash 8 - Q400) i nove generacije (zrakoplov Airbus A220 - 300) pomoću provedenih mjerenja razine buke na redovitim linijama Zagreb - Split, Split - Zagreb. Osim provedenih mjerenja, za svrhe ovoga rada je provedena i anketa među djelatnicima letačkog i kabinskog osoblja. Pomoću provedenih mjerenja ustanovilo se kako je zrakoplov Dash 8 - Q400 glasniji od zrakoplova Airbus A220 - 300, te uz pomoć ankete je ustanovljeno kako su negativne posljedice buke prisutne kod letačkog i kabinskog osoblja, gdje su izraženije među kabinskim osobljem.Noise, as one of the growing concerns in air transport, has a negative impact not only on passengers, local communities, and the environment, but also on the health of flight and cabin crew members. The aim of this paper is to compare the impact of aircraft noise generated by older - generation aircraft (represented in this study by the Dash8 - Q400) and newer - generation aircraft (Airbus A220 - 300), based on conducted noise level measurements on regular flight routes between Zagreb and Split. In addition to these measurements, a survey was carried out among flight and cabin crew members for the purposes of this study. Based on the conducted measurements, it was established that the Dash 8-Q400 aircraft is louder than the Airbus A220 - 300. Furthermore, the survey results indicated that the negative effects of noise are present among both flight and cabin crew, with a more pronounced impact observed among cabin crew members
Analiza utjecaja parametara modela vozača na izdvojene utjecajne značajke profila vožnje
No full textIn motorsport, minimizing lap time is the ultimate goal, guiding all research and development activities. One common tool used in this pursuit is the Driver-in-the-Loop (DiL) simulator, where a human driver interacts with a virtual environment to test and optimize vehicle systems. However, relying on human drivers for these simulations is time-consuming and limits the potential for automation of the system parameter optimization.
To address this challenge, there is an increasing shift toward replacing human drivers with driver models that can accurately replicate on-track behavior. While current solutions for creating respective digital twins often rely on machine learning techniques, they typically require large amounts of training data, making them resource-intensive and less cost-effective.
This research focuses on identifying the dependencies between driver model parameters and key driving performance indicators defined here as key performance indicators (KPIs). By understanding these parameters and KPIs relationships, it becomes possible to optimize driver models more efficiently, reducing the need for extensive data collection and data-driven training. The study also includes a validation of the identified dependencies, confirming their relevance and practical applicability for future integration into advanced simulation and optimization frameworks
Comparison of Several Post-production Processes - from Pre-production to Premiere
No full textOvaj rad opisuje razne postprodukcijske procese na različitim projektima od faze predprodukcije do završavanja projekta. Rad se oslanja na analize tri profesionalna projekta - dugometražni igrani film Illyricvm, dugometražni dokumentarni film Vitić pleše i kratkometražni eksperimentalni film Bol.This paper describes the various post-production processes on different projects from the pre-production stage to the completion of the project. The work is based on the analysis of three professional projects - the feature film Illyricvm, the documentary film Vitić Dances and the short experimental film Pain
Hand cart for the Formula Student electric racing vehicle battery
No full textU ovom završnom radu osmišljena su i konstrukcijski detaljno razrađena ručno pogonjena kolica specijalizirana za transport i punjenje baterije korištene u bolidu Formula Student natjecanja. Glavni cilj bio je razviti mobilno i funkcionalno rješenje koje će omogućiti sigurno i jednostavno prenošenje baterije unutar boksa (engl. pit area), uz integraciju sustava za punjenje kako bi se smanjila potreba za dodatnom opremom tijekom natjecanja.
Rad započinje analizom postojećih rješenja i pregledom tehničkih zahtjeva propisanih pravilima Formula Student natjecanja, s posebnim naglaskom na sigurnost pri radu s visokim naponom i ergonomiju pri rukovanju teškim komponentama. Nakon definiranja tehničkih i funkcionalnih zahtjeva, razvijeno je nekoliko konceptualnih rješenja kolica, koja su vrednovana prema unaprijed definiranim kriterijima kao što su stabilnost, jednostavnost korištenja, sigurnost i integracija sustava za punjenje.
Na temelju rezultata analize, odabran je koncept koji je dobio najviše ocjene te je napravljena detaljna konstrukcijska razrada. U sklopu razrade izrađeni su detaljni proračuni ključnih elemenata, uključujući nosive komponente i mehanizam za zaključavanje baterije tijekom transporta. Također, izrađena je kompletna tehnička dokumentacija i 3D model pomoću CAD softvera, čime je omogućena vizualizacija konačnog dizajna te provjera njegove izvedivosti i praktičnosti.
Osim konstrukcijskih aspekata, rad uključuje i pregled sigurnosnih mjera koje je potrebno provesti kako bi kolica bila usklađena s međunarodnim standardima za rad s litij-ionskim baterijama, uključujući izolaciju električnih spojeva i zaštitu od mehaničkih oštećenja. Kroz integraciju rješenja za punjenje unutar kolica, omogućena je dodatna funkcionalnost koja olakšava rad tehničkog tima i smanjuje vrijeme potrebno za pripremu vozila tijekom natjecanja.
Kao rezultat ovog rada, razvijeno je inovativno i praktično rješenje koje zadovoljava sve postavljene tehničke zahtjeve i pridonosi poboljšanju operativne učinkovitosti tijekom natjecanja Formula Student.In this thesis, manually powered carts designed specifically for transporting and charging the battery used in a Formula Student race car were thoroughly conceptualized and structurally developed. The primary objective was to create a mobile and functional solution that would enable the safe and simple transport of the battery within the pit area, integrating a charging system to minimize the need for additional equipment during competitions.
The thesis begins with an analysis of existing solutions and a review of the technical requirements outlined by the Formula Student competition rules, emphasizing safety when working with high voltage and ergonomics for handling heavy components. After defining technical and functional requirements, several conceptual designs for the cart were developed and evaluated according to predefined criteria, such as stability, ease of use, safety, and charging system integration.
Based on the evaluation results, the highest-rated concept was selected for detailed structural development. This phase included precise technical calculations of key components, such as load-bearing structures and a locking mechanism for securing the battery during transport. Additionally, comprehensive technical documentation and a 3D model were created using CAD software, allowing for visualization of the final design and verification of its feasibility and practicality.
In addition to structural aspects, the thesis also addresses safety measures necessary for compliance with international standards for handling lithium-ion batteries, including electrical connection insulation and protection against mechanical damage. By integrating a charging system within the cart, additional functionality was achieved, simplifying the technical team’s work and reducing the time required for vehicle preparation during competitions.
As a result of this thesis, an innovative and practical solution was developed that meets all specified technical requirements, contributing to improved operational efficiency in Formula Student competitions
Suspension compliance measuring device for Formula Student race car
No full textProblemi s elastičnim deformacijama ovjesa su uočeni na stazi prilikom testiranja. Pretpostavke su da se najveće deformacije događaju na naplatku, ali su to samo pretpostavke. Cilj uređaja za mjerenje elastokinematike ovjesa je prikupiti što više korisnih podataka koji se primarno tiču promjene kutova bočnog nagiba kotača te usmjerenosti kotača.
U ovom radu je napravljena analiza problema koji uzrokuju deformacije ovjesa, predstavljena su trenutna rješenja na tržištu te je napravljeno predstavljanje mogućih rješenja. Nakon toga je konstrukcijski razrađeno optimalno rješenje za trenutne potrebe FSB Racing Teama, to rješenje je detaljno predstavljeno te popraćeno troškovnikom i tehničkom dokumentacijom.Problems with elastic deformations of the suspension were observed on the track during testing. It is assumed that the greatest deformations occur on the wheel rim, but these are only assumptions. The goal of the suspension compliance measurement device is to collect as much useful data as possible, primarily concerning changes in the wheel's camber and toe angles.
This paper analyzes the problems causing suspension deformations, presents existing solutions available on the market, and introduces potential solutions. Following this, an optimal solution for the current needs of the FSB Racing Team was developed in detail, presented comprehensively, and supported with a cost analysis and technical documentation
Blood Parasites of Birds of the Order Psittaciformes
No full textPapigašice su ptice iz reda Psittaciformes, poznate po živopisnim bojama, inteligenciji
i sposobnosti oponašanja zvukova, uključujući i govor. Isto kao i ostale ptice, papigašice
mogu biti invadirane parazitima, uključujući krvne parazite.
Papige, popularne kao kućni ljubimci i izložbene životinje, često su izložene riziku od
invazije parazitima, posebice u zatočeništvu, gdje su uvjeti za prijenos povoljniji. Egzotične
ptice uvezene iz područja bez prirodne prisutnosti krvnih parazita, izložene su različitim
skupinama tih parazita u zoološkim vrtovima. Ove ptice, koje nisu evolucijski i fiziološki
prilagođene lokalnim vrstama krvnih parazita, podložne su invazijama kada se nađu u novim
staništima pogodnim za prijenos. S druge strane, u divljini je incidencija rjeđa, ali stres i
imunokompromitiranost mogu povećati njihovu osjetljivost.
Ovaj diplomski rad detaljno obrađuje krvne parazite ptica reda Psittaciformes
(papigašice), pružajući sveobuhvatan pregled bioloških karakteristika, prevalenciju,
patogenezu, metode dijagnostike i suzbijanja. Opisuje vrste parazita rodova Haemoproteus,
Plasmodium, Leucocytozoon, Trypanosoma i drugih, ističući njihov složen razvojni ciklus,
koji uključuje stadije u pticama, tj. nositeljima i hematofagnim insektima, tj. vektorima.
Paraziti poput Plasmodium spp. izazivaju značajne patološke promjene, uključujući
anemiju, splenomegaliju i hepatomegaliju te plućni edem, dok invazije s vrstama iz roda
Haemoproteus mogu ostati asimptomatske, osim u slučaju visokog stresa.
Dijagnostika je temeljena na mikroskopskom pregledu krvnih razmaza i
molekularnim metodama, dok prevencija podrazumijeva izolaciju ptica od vektora
korištenjem zaštitnih mreža i tretmanima insekticidima. Liječenje uključuje primjenu
specifičnih antiparazitskih lijekova, uz isticanje važnosti kontinuiranog monitoringa i
istraživanja kako bi se smanjio utjecaj krvnih parazita na zdravlje papiga.Parrots are birds of the order Psittaciformes, known for their vivid colors, intelligence
and ability to imitate sounds, including speech. Like other birds, parakeets can be infected
with parasites, including blood parasites.
Parrots, popular as pets and exhibition animals, are often at risk of parasitic invasions,
particularly in captivity where conditions for transmission are more favorable. Exotic birds
imported from regions free of natural blood parasite presence are often exposed to various
groups of these parasites in zoos. Such birds, which are not evolutionarily or physiologically
adapted to local blood parasite species, are particularly susceptible to invasions when
introduced to new habitats conducive to parasite transmission. In contrast, the incidence of
blood parasites is lower in wild populations, although stress and immunosuppression can
increase susceptibility.
This thesis provides a detailed analysis of the blood parasites of birds belonging to the
order Psittaciformes (parrots), offering a comprehensive overview of their biological
characteristics, prevalence, pathogenesis, diagnostics, and control methods. It describes
parasitic species from the genera Haemoproteus, Plasmodium, Leucocytozoon, Trypanosoma,
and others, highlighting their complex life cycles that involve stages in birds i. e. hosts and
hematophagous insects i. e. vectors.
Parasites such as Plasmodium spp. cause significant pathological changes, including
anemia, splenomegaly, hepatomegaly, and pulmonary edema, whereas invasions by
Haemoproteus spp. are often asymptomatic unless the birds experience significant stress.
Diagnostics is based on microscopic examination of blood smears and molecular
methods, while prevention focuses on isolating birds from vectors using protective nets and
insecticide treatments. Treatment involves the use of specific antiparasitic medications,
emphasizing the importance of continuous monitoring and research to reduce the impact of
blood parasites on parrot health
Prevalence of Dirofilaria sp. Nematode in Krapinsko-zagorska County
No full textD. immitis i D. repens oblići su iz koljena Nematoda, razreda Chromadorea, reda Spirurida,
porodice Onchocercidae i roda Dirofilaria. Uzročnici su invazijske bolesti, dirofilarioze koja
spada u bolesti prenosive vektorima. Najčešći nositelji su psi, međutim invazija je dokazana u
vukova, lisica, mačaka u koje se ubraja i domaća mačka, u medvjeda, pandi, dabrova, kunića,
jelena, konji, ali i ljudi. Bolest prenose komarci iz porodice Culicidae i rodova Culex, Aedes,
Ochlerotatus, Anopheles, Armigeres i Mansonia. D. immitis uzročnik je kardiopulmonalne
dirofilarioze, dok D. repens uglavnom ne uzrokuje pojavu kliničkih znakova ili se mogu javiti
nespecifični dermatološki simptomi. Obje vrste su uzročnici su zoonoza, dok je u Europi najviše
slučajeva kod ljudi uzrokovano s D. repens. Zbog svoje rasprostranjenosti po cijeloj Republici
Hrvatskoj, cilj ovog istraživanja bio je utvrditi prisutnost i vrstu Dirofilaria sp. u pasa na
području Krapinsko-zagorske županije te po potrebi tretirati pronađene rezervoare kako ne bi
predstavljali izvor invazije za druge životinje i ljude. Istraživanje je provedeno na području
Krapinsko Zagorske županije, na 110 uzoraka krvi pasa. Modificiranim Knottovim testom i
morfometrijskim odlikama je dokazana prisutnost D. repens u 1,81% uzoraka.D. immitis and D. repens are species from the phylum Nematoda, class Chromadorea, order
Spirurida, family Onchocercidae and genus Dirofilaria. They are the causative agents of an
invasive disease, dirofilariosis, which belongs to vector-borne diseases. The most common
hosts are dogs, however, invasion has been proven in wolves, foxes, cats, including domestic
cats, bears, pandas, beavers, rabbits, deer, horses, and humans. The disease is transmitted by
mosquitoes from the family Culicidae and the genera Culex, Aedes, Ochlerotatus, Anopheles,
Armigeres and Mansonia. D. immitis is the causative agent of cardiopulmonary dirofilariosis,
while D. repens mostly does not cause clinical signs or nonspecific dermatological symptoms
can occur. Both species are zoonotic agents, whereas in Europe most cases in humans are caused
by D. repens. Due to its distribution throughout the Republic of Croatia, the aim of this research
was to determine the presence and species of Dirofilaria sp. in dogs in Krapina-Zagorje County
and, if necessary, treat the proven reservoirs so they do not represent a source of invasion for
other animals and humans. The research was conducted in Krapina-Zagorska County, on 110
dog blood samples. The modified Knott's test and morphometry proved the presence of D.
repens in 1.81% of the sample
The Contribution of the Analysis of Financial Statements and Non-Financial Statements – Case Study of the Company KEV d.d. Using Pivot Analysis for the Period from 2020 to 2022
No full textOvim diplomskim radom analizira se doprinos financijskih i nefinancijskih izvještaja u procjeni uspješnosti poslovanja poduzeća Končar Električna Vozila d.d. u razdoblju od 2020. do 2022. godine. Primjeno, Pivot analize i naprednih metoda poslovne inteligencije, istražena je struktura bilance, računa dobiti i gubitka te novčanog toka, uz poseban naglasak na ključne financijske pokazatelje. Osim financijskih izvještaja, analizirani su i nefinancijski aspekti poslovanja, uključujući ekološki otisak, društvenu odgovornost i upravljačke strukture, kako bi se dobila sveobuhvatna slika poslovanja. Konačni rezultati istraživanja pokazuju trendove rasta prihoda i poslovne ekspanzije poduzeća, uz određene izazove u upravljanju troškovima i likvidnošću. Zaključuje se da integrirana analiza financijskih i nefinancijskih izvještaja omogućava bolje strateško odlučivanje te povećava transparentnost i održivost poslovanjaThis graduate thesis analyzes the contribution of financial and non-financial reports in assessing the business performance of the company Končar Električna Vozila d.d. during the period from 2020 to 2022. By applying Pivot analyses and advanced business intelligence methods, the structure of the balance sheet, income statement, and cash flow statement was examined, with particular emphasis on key financial indicators. In addition to financial reports, non-financial aspects of business operations were also analyzed, including environmental footprint, social responsibility, and governance structures, in order to obtain a comprehensive view of the company's performance. The final research results indicate trends of revenue growth and business expansion, alongside certain challenges in cost management and liquidity. It is concluded that an integrated analysis of financial and non-financial reports enables better strategic decision-making and enhances transparency and business sustainability
Optimization of the generator frame bracket
No full textHidroenergija je vodeći izvor obnovljive električne energije, a njezin potencijal u današnjem
svijetu je iznimno velik zbog velikih zahtjeva za čistom energijom. Glavni stroj za generiranje
električne energije iz hidroenergije je generator, koji mehaničku energiju dobivenu iz turbine
pretvara u električnu energiju. Pri tom procesu, kućište generatora preuzima velike sile koje se
prenose putem turbine i vratila, što zahtijeva izdržljivost i čvrstoću svih njegovih komponenti.
Jedna od ključnih komponenti koja osigurava pravilan rad generatora i njegovu krutost je štit
generatora koji je sastavni dio kućišta i odgovaran za prijenos aksijalna opterećenja. Ispravno
dimenzioniran i optimiziran štit ključan je za povećanje sigurnosti i vijeka trajanja generatora.
Ovaj rad bavi se optimizacijom konstrukcijskog rješenja štita kućišta generatora za primjenu u
hidroelektranama. Prvi korak je analiza mehaničkih karakteristika plitkog štita, s naglaskom
na njegovu krutost, primjenom metode konačnih elemenata (MKE). Detaljnom analizom
procijenit će se sposobnost štita da prenosi aksijalna opterećenja te osigurava stabilnost
cijelog sustava. Nadalje, potrebno je razmotriti opravdanost primjene dubokog štita u odnosu
na plitki štit. Ove dvije izvedbe razlikuju se po obliku i načinu izrade. Sljedeća faza rada
uključuje simulaciju postupka zavarivanja kako bi se analizirala zaostala naprezanja koja
mogu utjecati na integritet i vijek trajanja štita. Rezultati ove analize omogućit će bolje
razumijevanje ponašanja materijala tijekom zavarivanja te identificirati potencijalne slabe
točke koje bi mogle ugroziti stabilnost konstrukcije. Također, ova simulacija pridonosi
unapređenju procesa izrade štita i smanjenju rizika od pukotina ili deformacija. Na temelju
provedenih analiza, izradit će se optimizirano konstrukcijsko rješenje dubokog štita. U sklopu
optimizacije provest će se numerička analiza čvrstoće i krutosti kako bi se osigurala
odgovarajuća nosivost i pouzdanost štita. Cilj je postići optimalno konstrukcijsko rješenje
koje zadovoljava sve tehničke zahtjeve uz visoku učinkovitost, stabilnost i dugotrajnost
sustava. Na kraju rada, svi mjerljivi parametri bit će uspoređeni kako bi se utvrdila
opravdanost primjene optimiziranog štita. Usporedit će se aksijalna krutost, maksimalna
naprezanja i troškovi izrade kako bi se donio konačni zaključak o isplativosti novog rješenja.Hydropower is the leading source of renewable electricity, and its potential in today's world is
exceptionally high due to the increasing demand for clean energy. The primary machine for
generating electricity from hydropower is the generator, which converts mechanical energy
from the turbine into electrical energy. During this process, the generator housing absorbs
significant forces transmitted through the turbine and shaft, necessitating the durability and
strength of all its components. One of the key components ensuring the proper operation and
rigidity of the generator is the generator shield, which is an integral part of the housing and
responsible for transferring axial loads. A properly dimensioned and optimized shield is
essential for enhancing the safety and lifespan of the machine. This thesis focuses on optimizing
the mechanical design of the housing shield for application in hydropower plants. The first step
involves analyzing the mechanical characteristics of the shallow shield, with an emphasis on its
rigidity, using the Finite Element Method (FEM). A detailed analysis will assess the shield's
ability to transfer axial loads and ensure the system's overall stability.
Furthermore, it is necessary to evaluate the justification for using a deep shield compared to a
shallow shield. These two designs differ in shape and manufacturing methods. The next phase
of the study involves simulating the welding process to analyze residual stresses that may affect
the integrity and lifespan of the shield. The results of this analysis will provide better insight
into the material's behavior during welding and help identify potential weak points that could
compromise structural stability. This simulation also contributes to improving the shield
manufacturing process and reducing the risk of cracks or deformations. Based on the conducted
analyses, an optimized structural solution for the deep shield will be developed. As part of the
optimization, a numerical study of strength and rigidity will be performed to ensure adequate
load-bearing capacity and reliability of the shield. The goal is to achieve an optimal design that
meets all technical requirements while ensuring high efficiency, stability, and durability of the
system. At the end of the thesis, all measurable parameters will be compared to determine the
justification for implementing the optimized shield. Axial rigidity, maximum stresses, and
manufacturing costs will be evaluated to draw a conclusion regarding the cost-effectiveness of
the new solution