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    Plastic explosives application for lined shaped charges in ammunition treatment

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    U diplomskom radu opisuje se razvoj kumulativnih naboja kroz povijest, sistematizirane su različite vrste kumulativnih naboja i njihove karakteristike, te je prikazana njihova primjena u različitim granama industrije. Poseban naglasak stavljen je na linijske kumulativne rezače, koji su namijenjeni za eksperimentalna ispitivanja ovoga rada. Rad također detaljno opisuje strukturu i podjelu topničkog streljiva, kao i proces delaboracije, tj. sigurnog uklanjanja eksplozivnog sadržaja iz streljiva. Za eksperimentalno istraživanje izrađeni su funkcionalni linijski kumulativni rezači korištenjem plastičnog eksploziva koji su prvo testirani na čeličnim pločama radi određivanja optimalne udaljenosti od mete. Na temelju dobivenih rezultata, provjerena je funkcionalnost rezača na košuljicama topničkog streljiva. Ovi rezultati poboljšavaju razumijevanje djelovanja linijskih kumulativnih rezača i njihovu primjenu u procesu delaboracije streljiva.The thesis describes the development of shaped charges throughout history, categorizes different types of shaped charges and their characteristics, and presents their applications in various industries. Special emphasis is placed on linear shaped charges, which are intended for the experimental investigations conducted in this thesis. The thesis also provides a detailed description of the structure and classification of artillery ammunition, as well as the delaboration process, which involves the safe removal of explosive content from the ammunition. For the purpose of experimental research, functional linear shaped charges were developed using plastic explosives. Initially, they were tested on steel plates to determine the optimal distance from the target. Based on the obtained results, the functionality of the charges was verified on artillery ammunition casings. These results contribute to a better understanding of the operation of linear shaped charges and their potential application in the ammunition delaboration process

    Plastic explosives application for lined shaped charges in ammunition treatment

    No full text
    U diplomskom radu opisuje se razvoj kumulativnih naboja kroz povijest, sistematizirane su različite vrste kumulativnih naboja i njihove karakteristike, te je prikazana njihova primjena u različitim granama industrije. Poseban naglasak stavljen je na linijske kumulativne rezače, koji su namijenjeni za eksperimentalna ispitivanja ovoga rada. Rad također detaljno opisuje strukturu i podjelu topničkog streljiva, kao i proces delaboracije, tj. sigurnog uklanjanja eksplozivnog sadržaja iz streljiva. Za eksperimentalno istraživanje izrađeni su funkcionalni linijski kumulativni rezači korištenjem plastičnog eksploziva koji su prvo testirani na čeličnim pločama radi određivanja optimalne udaljenosti od mete. Na temelju dobivenih rezultata, provjerena je funkcionalnost rezača na košuljicama topničkog streljiva. Ovi rezultati poboljšavaju razumijevanje djelovanja linijskih kumulativnih rezača i njihovu primjenu u procesu delaboracije streljiva.The thesis describes the development of shaped charges throughout history, categorizes different types of shaped charges and their characteristics, and presents their applications in various industries. Special emphasis is placed on linear shaped charges, which are intended for the experimental investigations conducted in this thesis. The thesis also provides a detailed description of the structure and classification of artillery ammunition, as well as the delaboration process, which involves the safe removal of explosive content from the ammunition. For the purpose of experimental research, functional linear shaped charges were developed using plastic explosives. Initially, they were tested on steel plates to determine the optimal distance from the target. Based on the obtained results, the functionality of the charges was verified on artillery ammunition casings. These results contribute to a better understanding of the operation of linear shaped charges and their potential application in the ammunition delaboration process

    High Pressure Fuel Supply System of the Engine V - 46 - 6

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    Tenk M-84 napravljen je na temelju ruskog tenka T-72, a njegova odličja su primjena najvećeg kalibra topa i učinkovitog streljiva, automatsko punjenje topa, mala masa i silueta, te dobra zaštita. Također, na raspolaganju ima novi suvremeni sustav za upravljanje paljbom, modificirani motor veće snage, nova radio oprema i NBK detektor. Iako je napravljen na temelju ruskog tenka T-72, zadržava njegove osnovne značajke, ali predstavlja evoluciju baznog tenka u sustavima i značajkama. U tenku M-84 nalazi se dvanaestocilindarski dizelov motor. Dizel motori imaju široku primjenu kao pogonski motori. Ugrađuju se u razna prijevozna sredstva, ali najviše se koriste kod teretnih vozila. Kako bi se postigao što učinkovitiji rad motora, potrebno je imati sustav ubrizgavanja koji može postići velike tlakove, te samim time povećati efikasnost motora. Većim tlakovima umanjuju se nečistoće u gorivu te su ujedno čestice goriva manje, stoga se gorivo bolje miješa sa zrakom. Na motoru V-46-6 nalazi se visokotlačni sustav dobave goriva. Glavni dijelovi su: visokotlačna pumpa, brizgaljke, cjevovodi itd. Sustav ubrizgavanja je izravan te motoru pruža snagu od 575 kW.The M-84 tank was built on the basis of the Russian T-72 tank, and its features are the use of the largest caliber cannon and effective ammunition, automatic cannon loading, low mass and silhouette, and good protection. It also has at its disposal a new modern fire control system, a modified engine with higher power, new radio equipment and an NBK detector. Although it is based on the Russian T-72 tank, it retains its basic features, but represents an evolution of the base tank in systems and features. The M-84 tank has a twelve-cylinder diesel engine. Diesel engines are widely used as propulsion engines. They are installed in various means of transport, but they are mostly used in trucks. In order to achieve the most efficient operation of the engine, it is necessary to have an injection system that can achieve high pressures, thereby increasing the efficiency of the engine. Higher pressures reduce the impurities in the fuel and at the same time the fuel particles are smaller, so the fuel mixes better with the air. The V-46-6 engine has a high-pressure fuel supply system. The main parts are: high-pressure pump, injectors, pipelines, etc. The injection system is direct and provides the engine with a power of 575 kW

    Plastic explosives application for lined shaped charges in ammunition treatment

    No full text
    U diplomskom radu opisuje se razvoj kumulativnih naboja kroz povijest, sistematizirane su različite vrste kumulativnih naboja i njihove karakteristike, te je prikazana njihova primjena u različitim granama industrije. Poseban naglasak stavljen je na linijske kumulativne rezače, koji su namijenjeni za eksperimentalna ispitivanja ovoga rada. Rad također detaljno opisuje strukturu i podjelu topničkog streljiva, kao i proces delaboracije, tj. sigurnog uklanjanja eksplozivnog sadržaja iz streljiva. Za eksperimentalno istraživanje izrađeni su funkcionalni linijski kumulativni rezači korištenjem plastičnog eksploziva koji su prvo testirani na čeličnim pločama radi određivanja optimalne udaljenosti od mete. Na temelju dobivenih rezultata, provjerena je funkcionalnost rezača na košuljicama topničkog streljiva. Ovi rezultati poboljšavaju razumijevanje djelovanja linijskih kumulativnih rezača i njihovu primjenu u procesu delaboracije streljiva.The thesis describes the development of shaped charges throughout history, categorizes different types of shaped charges and their characteristics, and presents their applications in various industries. Special emphasis is placed on linear shaped charges, which are intended for the experimental investigations conducted in this thesis. The thesis also provides a detailed description of the structure and classification of artillery ammunition, as well as the delaboration process, which involves the safe removal of explosive content from the ammunition. For the purpose of experimental research, functional linear shaped charges were developed using plastic explosives. Initially, they were tested on steel plates to determine the optimal distance from the target. Based on the obtained results, the functionality of the charges was verified on artillery ammunition casings. These results contribute to a better understanding of the operation of linear shaped charges and their potential application in the ammunition delaboration process

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis

    Dispelling the Myths Behind First-author Citation Counts

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    We conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more sophisticated methods

    Author Index

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