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Analysis of Aircraft Ground handling Equipment based on Decision Tree Method
No full textProces prihvata i otpreme zrakoplova se sastoji velikog broja različitih aktivnosti. Za provođenje aktivnosti je potrebna odgovarajuća oprema koja se koristi ovisno o tipu zrakoplova, zračnog prijevoznika, zračne luke i drugo. U ovom radu je opisana oprema potrebna za aktivnosti prihvata i otpreme zrakoplova. Stablo odlučivanja je grafička metoda koja se koristi za klasifikaciju znanja na temelju prethodno prikupljenih podataka, a klasifikaciju znanja provodi algoritam. Postoji više tipova algoritama koji se razlikuju se prema načinu rada. U ovom radu je metodom stabla odlučivanja analizirana oprema za prihvat i otpremu zrakoplova. Analiza je napravljena u programu C#. Metoda stabla odlučivanja se izvršava na temelju CART algoritma.The aircraft ramp handling process consists of several activities. Activities are performed with the appropriate equipment, and this equipment depends on the type of aircraft, air carrier, airport, and others. This paper describes the equipment necessary for the aircraft ramp handling process. The decision tree is a graphic method used for knowledge classification based on previously collected data. The algorithm performs knowledge classification. There are several types of algorithms, which have different operation modes. This paper uses the decision tree method for the analysis of equipment for receiving and dispatching the aircraft. The analysis is made in the C# program. The decision tree method is based on the CART algorithm
Analysis of Routing Challenges and Approaches for Internet of Things Networks
No full textCilj ovog diplomskog rada je predstaviti Internet of Things koncept te postojeće protokole usmjeravanja koji omogućuju prijenos podataka između povezanih uređaja te analizirati njihove performanse. U radu su detaljno definirane komponente mreža temeljenih na IoT konceptu, karakteristike primijenjenih komunikacijskih tehnologija te mrežna arhitektura. S obzirom na navedeno, prikazana je kategorizacija postojećih područja primjene IoT. Također, definirani su prisutni izazovi prilikom usmjeravanja koji utječu na dizajn i razvoj protokola usmjeravanja te je prikazana klasifikacija protokola usmjeravanja. Shodno tome, opisane su karakteristike postojećih protokola usmjeravanja uz komparativnu analizu definiranih protokola usmjeravanja prema različitim načinima rada i parametrima.This thesis aims to present the Internet of Things concept and existing routing protocols that allow data transfer between connected devices and analyze their performanceS. This thesis defines the components of the IoT concept, the characteristics of the applied communication technologies and its network architecture in detail. Accordingly, the categorization of existing areas of application of IoT is presented. Also, the challenging factors in routing that affect on design and development of routing protocols are defined and the classification of routing protocols is presented. Additionally, the characteristics of existing routing protocols are described with a comparative analysis of defined routing protocols according to different modes of operation and parameters
Analysis of indicators for road vehicle safety assessment
No full textSigurnost u cestovnom prometu ima veliku važnost. Čovjek, vozilo i cesta temeljni su čimbenici sigurnosti prometa. Čimbenik sigurnosti vozila se dijeli na aktivne i pasivne elemente. Za testiranje i ocjenjivanje sigurnosti vozila postoji više tvrtki dok je na području Europe najpoznatija tvrtka Euro NCAP osnovana 1997. godine sa sjedištem u Belgiji. Euro NCAP svoj sustav testiranja i ocjenjivanja temelji na četiri glavna indikatora: Sigurnost odrasle osobe, sigurnost djece, sigurnost ugroženog korisnika ceste, sigurnosni sustav pomoći vozaču. Za svaki od četiri indikatora provodi se niz testova. Kako bi se mogli analizirati provedeni testovi važnu ulogu imaju snimke i fotografije snimljene za vrijeme testiranja te lutke opremljene senzorima za bilježenje potrebnih podataka. Konačna ocjena je izražena brojem zvjezdica od jedan do pet, od čega vozilo kojem je dodijeljeno pet zvjezdica pruža najveću sigurnost.Road safety is of great importance. Man, vehicle and road are fundamental factors of traffic safety. The vehicle safety factor is divided into active and passive elements. There are several companies for testing and assessing vehicle safety, while in Europe the most famous company is Euro NCAP, founded in 1997 with its headquarters in Belgium. Euro NCAP bases its testing and assessment system on four main indicators: adult safety, child safety, safety of vulnerable road users and driver assistance safety system. For each of the four indicators, tests are conducted. In order to be able to analyze the performed tests, the images and photographs taken during the testing and the dummies equipped with sensors for recording the necessary data play an important role. The final rating is expressed by the number of stars from one to five, where the vehicle with five stars has been awarded to provide the highest safety
Logistics System Capacity Planning
No full textPri izradi logističkog sustava važno je znati ciljeve koji se žele ostvariti i postići. Logistički sustav može se shvatiti kao sustav čiji je primarni cilj zadovoljenje potreba krajnjeg korisnika radi ostvarenja komercijalne dobiti. Da bi sustav mogao pravilno funkcionirati, potrebno je da su svi dijelovi koji su uključeni u tok robe, od proizvodnje, skladištenja, do transporta i distribucije, informacijski povezani i fizički usklađeni. Veliku važnost treba pridodati planiranju i organiziranju sustava jer i najmanja greška može imati značajne posljedice koje se mogu očitati povećanjem troškova, smanjenjem dobiti tj. gubitkom interesa ili povjerenja krajnjeg potrošača. Planiranje kapaciteta važan je dio cijelog logističkog sustava, bilo to planiranje u količini proizvodnje, veličini skladišta, broju radnika ili količini potrebnog transporta. Rad je podijeljen na dva dijela, prvi dio je teorijski koji se bavi definiranjem osnovnih pojmova logističkih procesa, a drugi dio obrađuje praktični primjer logističkih kapaciteta. Objašnjavanjem uloga nositelja logističkih procesa stječe se šira slika potreba sinkronizacije određenih dijelova koji izravno i/ili neizravno utječu jedni na drugo. Potom su objašnjene metode planiranja logističkih procesa te je posebna pozornost postavljena na pravodobno reagiranje prilikom izrade planova te odabira odgovarajućih postupaka za izradu što optimalnijeg sustava. U planiranju kapaciteta logističkih sustava ističe se važnost skladišnog prostora, kao i važnost transportnih usluga, u cilju izbjegavanja problema uskog grla čiji je uzrok loše planiranje procesa te neusklađenost tog dijela sustava s ostalim dijelovima. Glavni dio rada fokusiran je na planiranje i kontrolu kapaciteta te procesa pretovara, skladištenja i prijevoza aluminijskih trupaca u Luci Šibenik.When designing a logistics system, it is important to know the goals you want to accomplish and achieve. A logistics system can be understood as a system whose primary goal is to meet the needs of the end user in order to achieve commercial profit. In order for the system to function properly, it is necessary that all parts involved in the flow of goods, from production, storage, to transport and distribution, are informationally connected and physically compatible. Great importance should be attached to the planning and organization of the system because even the slightest mistake can have significant consequences that can be seen in increased costs, reduced profits, ie. loss of interest or confidence of the end consumer. Capacity planning is an important part of the entire logistics system, be it planning in the amount of production, the size of the warehouse, the number of workers or the amount of transport required. The paper is divided into two parts, the first part is theoretical, which deals with defining the basic concepts of logistics processes, and the second part deals with a practical example of logistics capacity. Explaining the roles of the bearers of logistics processes provides a broader picture of the need to synchronize certain parts that directly and /or indirectly affect each other. Then, the methods of planning logistics processes are explained, and special attention is paid to timely response when making plans and selecting appropriate procedures for making the most optimal system. The capacity planning of logistics systems emphasizes the importance of storage space, as well as the importance of transport services, in order to avoid the bottleneck problem caused by poor process planning and non-compliance of this part of the system with other parts. The main part of the paper is focused on the planning and control of capacity and the process of transshipment, storage and transportation of aluminum logs in the Port of Šibenik
Aircraft Engine Reliabitliy Program of DASH 8 Q400
No full textPouzdanost zrakoplova jedna je od ključnih stavki sigurnog leta zrakoplova. Letačko osoblje i odjel održavanja zrakoplova bilježe razne podatke o eksploataciji motora i izračunavaju parametre koji se prate na mjesečnoj bazi. Sve te informacije sadrži program pouzdanosti koji je, prema regulativi, svaki zračni prijevoznik dužan izraditi. Odbor za praćenje pouzdanosti prati statistiku podataka i prema potrebi poduzima korektivne mjere kako bi pouzdanost sustava zrakoplova bila veća i kako bi se smanjio stupanj otkaza. Za pouzdanost pogonskog sustava prati se gašenje motora u letu, dolasci motora u radionicu i neplanirane zamjene motora. Prijevoznici su dužni podatke slati proizvođaču motora koji na godišnjoj bazi objavljuje, analizira i uspoređuje podatke svih prijevoznika koji imaju isti tip zrakoplova u operacijama.Aircraft reliability is one of the key factors for ensuring a safe flight. Different data are collected by flight crews and maintenance department during engine exploitation. Afterwards, noted data are used to calculate required parametres. This is included into reliability program, which is, according to regulations, obligation for all carriers. Reliability board checks statistics that is provided and takes appropriate measures if necessary. Main goal is to increase reliability and reduce failures. When it comes to powerplant reliability, following data are observed: inflight shutdowns, shop visits and unscheduled removals. Air carriers must send data to engine manufacturers, who publishes, analyzes and compares given information with all carriers using same type of the aircraft in their fleets
Influence of young drivers training on road safety
No full textPrometne nesreće prvi su uzrok smrtnosti mladih ljudi i zbog toga veliku pažnju treba posvetiti istraživanjima mogućnosti smanjenja nesreća i gubitaka mladih života. Ovaj diplomski rad analizira trenutni način osposobljavanja kandidata za vozače i njegove nedostatke, istražuje mogućnosti poboljšanja procesa osposobljavanja, te predlaže rješenja za smanjenje nesreća koje uzrokuju mladi vozači. U svrhu istraživanja provedene su dvije ankete; jedna je provedena među mladim vozačima, a druga među instruktorima vožnje. Rezultati anketa doveli su do zaključaka o mjerama potrebnim za poboljšanje osposobljavanja, o najboljim rješenjima koja se mogu provesti u svrhu podizanja svijesti mladih vozača, većoj spremnosti za samostalni izlazak na cestu, podizanju prometne kulture kod mladih ljudi, te većoj kvaliteti obuke u autoškolama, a samim tim i većoj sigurnosti prometa na cestama.Traffic accidents are the leading cause of death among young people. Therefore, our attention needs to be focused on researching the possibilities of decreasing the number od traffic accidents and the loss of young lives. This thesis analyses the current driver training course and its flaws, inevstigates the possibilities of improving the training process and proposes the solutions for decreasing the number of traffic accidents caused by young drivers. For the research purposes, two surveys were conducted; one for young drivers and the other for driving instructors. The survey’s results led to conclusions regarding the measures needed to improve the training and the solutions that could be used for: raising awareness among young drivers, better preparedness for independent driving, better driving etiquette among young drivers, a better quality of training in driving schools, and thus increased road safety
Analysis of Wide-body Aircraft Ground Handling Process
No full textU radu su navedene karakteristike i specifičnosti širokotrupnih zrakoplova te su opisane njihove prednosti i nedostatci. Podrobno su opisani zrakoplovi Boeing 777, Boeing 747 i Airbus 380. Spomenute su vrste motora korištene kod navedenih zrakoplova, kapacitet putnika, maksimalni dolet i maksimalna brzina te brzina krstarenja. Objašnjen je pravilan način izvođenja procesa prihvata i otpreme širokotrupnog zrakoplova. Detaljno je opisan svaki segment procesa. Prikazane su vrste i karakteristike opreme korištene u procesu prihvata i otpreme zrakoplova. Podrobnije su opisane mobilna i fiksna oprema te je navedena usporedba istih na temelju prihvata širokotrupnog zrakoplova. U radu su navedene specifičnosti prihvata i otpreme zrakoplova B777 na Zračnoj luci Franjo Tuđman, kao i primjeri opreme koja se koristi te opis samog procesa.The paper presents the characteristics and specifics of wide - body aircraft and describes their advantages and disadvantages. The Boeing 777, Boeing 747 and Airbus 380 aircraft are described in detail. Types of engines used in the mentioned aircraft, passenger capacity, maximum range and speed, and cruising speed are also mentioned. The correct way of performing the process of ground handling a wide-body aircraft is explained. Each process segment is described in detail. The types and characteristics of the equipment used in the process of ground handling of aircraft are presented. Mobile and fixed equipment are described in more detail and it is given a comparison based on the acceptance of a wide-body aircraft. The paper presents the specifics of ground handling of B777 aircraft at Franjo Tuđman Airport, as well as examples of equipment used and a description of the process itself
Analysis of the COVID-19 Vaccine Distribution in the Republic of Croatia
No full textOvaj rad analizira karakteristike, specifičnosti, zahtjeve, strukturu i efikasnost distribucije cjepiva za COVID-19 na području Republike Hrvatske tvrtke Mark Medical d.o.o. Objašnjeni su pojmovi logistike, distribucije, sudionici u distribuciji. Definirani su pojmovi kanala distribucije, same fizičke distribucije, sudionika u distribuciji i proces skladištenja i manipuliranja farmaceutskim proizvodima. Obrađena je zakonska regulativa farmaceutskih proizvoda u Europskoj Uniji i Republici Hrvatskoj te informacijski sustavi koji se koriste u distribuciji farmaceutskih proizvoda. Analiziran je logistički sustav Mark Medical d.o.o. odnprijema, skladištenja, manipuliranja, otpreme i distribucije robe, do informacijskog sustava tvrtke. Prikazano je skladišno poslovanje tvrtke, programski sustavi koji upravljaju operacijama u tvrtci te formulirani prijedlozi unaprjeđenja postojećeg sustava.This paper analyzes the characteristics, specifics, requirements, structure and efficiency of the distribution of vaccines for COVID-19 in the Republic of Croatia by Mark Medical d.o.o. The concepts of logistics, distribution, participants in distribution are explained. The terms distribution channels, the same physical distribution, distribution participants and the process of storage and handling of pharmaceutical products are defined. The legal regulations of pharmaceutical products in the European Union and the Republic of Croatia and information systems used in the distribution of pharmaceutical products are discussed. The logistics system of Mark Medical d.o.o. was analyzed. shipment, storage, handling, shipment and distribution of goods, to the company's information system. The company's warehousing operations, software systems that manage operations in the company and formulated proposals for improving the existing system are presented
Application of the Internet of Vehicles Concept in Intelligent Transport Systems
No full textRazvoj informacijsko-komunikacijskih sustava potiče evoluciju konvencionalnih ad hoc mreža vozila u internet vozila (eng. Internet of Vehicles). U takvome okruženju sva vozila sadrže komunikacijske mogućnosti kojima mogu osigurati sigurno i prikladno transportno okruženje povećanjem povezivosti i interoperabilnosti. IoV pruža veliku istraživačku vrijednost i potencijal za privlačenje komercijalnog interesa obuhvaćanjem i povezivanjem niza entiteta razrađenim aplikacijama za poboljšanje sigurnosti i efikasnosti u prometu kao i sustavima informiranja i zabave. Razmatraju se industrijski standardi i komunikacijski protokoli razvijeni za promicanje primjene interneta vozila. Uz to, predlažu se slojevite arhitekture i mrežni modeli za internet vozila s obzirom na njihove funkcionalnosti. Konačno, spominju se mogućnosti primjene aplikacija interneta vozila u inteligentnim transportnim sustavima te se analizira jedan slučaj takve primjene.The development of information and communication systems encourages the evolution of conventional ad-hoc vehicle networks to Internet of Vehicles. In such an environment, each vehicle contains communication capabilities that provide a safe and convenient transport environment by increasing connectivity and interoperability. IoV provides great research value, as well as a huge potential for attracting commercial interest by encompassing and connecting a number of entities with the development of traffic safety and efficiency applications as well as information and entertainment systems. Industry standards and communication protocols developed to promote Internet vehicle applications are considered. In addition, layered architectures and network models for Internet vehicles are proposed with respect to their functionalities. Finally, the possibilities of utilizing IoV applications within intelligent transport systems are considered, and a case study of an IoV application is analyzed
Analysis of Public Transport in the City of Velika Gorica
No full textOvaj rad se temelji na analizi prometne mreže na području Grada Velike Gorice. Analizirale su se trase, duljine linija, stajališta te terminal Velika Gorica. Na temelju brojanja putnika na linijama koje prometuju na području Grada Velike Gorice, utvrđivala se iskorištenost linije tijekom radnog dana i subotom. Najveći problem se nalazi u manjku iskorištenosti kapaciteta vozila na svim linijama. U ovome radu predložiti će se promjena voznog parka, sa vozila većeg kapaciteta na vozila manjeg kapaciteta ili minibuseva tako da se postigne veća zaposjednutost vozila. Prelaskom na autobuse manjeg kapaciteta smanjili bi se troškovi održavanja te bi se povećalo iskorištenje ponuđenog transportnog rada.This paper is based on analysis of traffic network in the City Velika Gorica. An analysis of route, line length, bus stops and terminal Velika Gorica was conducted. Based on passenger counting conducted on all routes in Velika Gorica, utilization was determined for these routes during workdays and Saturday. In this paper, a proposal to change the vehicle capacity, from high-capacity vehicle to low-capacity vehicle will be made, so that the vehicle occupancy would increase. With the change to smaller buses there would be less maintenance cost and the usage of vehicle would rise