Претрага
160 items
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Fragmenting of cylindrical rock specimens under explosive load: Comparison between model and laboratory results
Slavko Torbica, Veljko Lapcevic (2016)Slavko Torbica, Veljko Lapcevic. "Fragmenting of cylindrical rock specimens under explosive load: Comparison between model and laboratory results" in Mining and Metallurgy Engineering Bor (2016). https://doi.org/10.5937/mmeb1601103T
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Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers
This paper presents a dynamic California Bearing Ratio (CBRd) device that can be used on a prepared pavement foundation layer to obtain a certain parameter of the tested material in the laboratory and in situ in a direct and fast way. For the selected natural material (gravel), it is shown that the laboratory CBRd can be used to estimate the compaction and bearing capacity, because it correlates well with the parameters of the standard and modifed Proctor compaction tests. ...korelacija parametara, donji slojevi saobraćajnica, laboratorijska i terenska ispitivanja, dinamički kalifornijski indeks nosivosti CBRd... compac- tion tests (pqis dry bulk density, w is water content). The field dynamic California Bearing Ratio (CBR.p) parameter is correlated with the E,,-E,, and Ey,, pa- rameters obtained by field tests through a SPLT and LWD. All experimental tests were performed in the TPA laboratory, and in situ ...
... measured (SP), •) measured (MP), ---) predicted from Eq. (3), —) predicted from Eq. (4). Laboratory tests After evaluating the compaction properties of the tested material, CBR,,, testing was performed in the laboratory. The testing was performed by fixing the CBR attachment to the LWD device, and using ...
... related to the compaction and bearing capacity of the gravel material were obtained by experimental tests performed in the TPA laboratory, and subsequently processed. Additionally, in-situ tests were conducted at 'Batajnica' Intermodal Terminal in Belgrade. 2. This study demonstrated that CBR, ...Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović. "Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers" in Soil Mechanics and Foundation Engineering, Springer Science and Business Media LLC (2024). https://doi.org/10.1007/s11204-024-09939-x
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Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining
Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić. "Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11060564
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Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels
Irina Zahirovic, Dušan Danilović, Milica Šuput Vranjin, Miloš Tripković. "Laboratory Testing of Nanosilica- Reinforced Silicate and Polyacrylamide Gels" in SPE Journal (2023)
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Determination of parameters for wet grinding of phosphates in a laboratory ball mill and classification in a hydrocyclone
Компанија Elixir Прахово у свом производном процесу користи суво млевење сировог фосфата за своју производњу. Међутим, због повећане влаге у сировом фосфату која изазива потешкоће у фази сувог млевења, разматра се могућност увођења мокрог млевења у индустријском постројењу у Прахову. Влага улазног сировог фосфата варира од барже до барже, и креће се у границама 5-10% H2O, што је јако високо за процес сувог млевења а ствара одређене проблеме и на транспортном систему (систем редлерских транспортери). За сагледавање могућности мокрог млевења ...Predrag Lazić, Đurica Nikšić, Vladan Živković, Nemanja Todorović. "Determination of parameters for wet grinding of phosphates in a laboratory ball mill and classification in a hydrocyclone" in Podzemni radovi, Centre for Evaluation in Education and Science (CEON/CEES) (2024). https://doi.org/10.5937/podrad2444019L
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Software for teaching math and preparing tests
Stankov Dragan (2012)Stankov Dragan. "Software for teaching math and preparing tests" in Zbornik radova / Simpozijum Matematika i primene, Beograd 27. i 28. maj 2011, Beograd:Matematički fakultet (2012)
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Tests of Personal Cable Lift With the Possibility of Solution
Ristović Ivica, Husáková Nikoleta, Dečmanová Jaroslava.. "Tests of Personal Cable Lift With the Possibility of Solution" in Metallurgy 2 no. 49, Zagreb, Croatia:Croatian Metallurgical Society (CMS) (2010): 479-482
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Results of laboratory tests for ultrasound anisotropy bridge chains across the Boka Kotorska bay
Majstorović Jelena, Stepanović Saša, Dimitrijević Bojan. "Results of laboratory tests for ultrasound anisotropy bridge chains across the Boka Kotorska bay" in Proceedings The IV-th Internationa Geomechanics Conference no. IV, Varna, Bulgaria:Scientific and Technical Union of Mining, Geology and Metallurgy (2010): 61-67
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The mine ore from Prlovi-2 locality preliminary flotation tests
Lazić Predrag, Tomanec Rudolf, Kostović Milena, Miković Branislav. "The mine ore from Prlovi-2 locality preliminary flotation tests" in Proceedings of the XIV Balkan Mineral Processing Congress I, Tuzla, Bosnia and Herzegovina:Faculty of Mining, geology and civil engineering in Tuzla and Faculty of Mining in Prijedor, University of Tuzla (2011): 269-273
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Determination of Mechanical Properties of Altered Dacite by Laboratory Methods
This paper presents a methodology for determining the uniaxial and triaxial compressive strength of heterogeneous material composed of dacite (D) and altered dacite (AD). A zone of gradual transition from altered dacite to dacite was observed in the rock mass. The mechanical properties of the rock material in that zone were determined by laboratory tests of composite samples that consisted of rock material discs. However, the functional dependence on the strength parameter alteration of the rock material (UCS, intact ...Veljko Rupar, Vladimir Čebašek, Vladimir Milisavljević, Dejan Stevanović, Nikola Živanović. "Determination of Mechanical Properties of Altered Dacite by Laboratory Methods" in Minerals, MDPI AG (2021). https://doi.org/10.3390/min11080813
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Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One
In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were de-fined as a part of the General Metro Construction Project. The lines are de-signed to intersect at the location of Sava Square, where an interchange met-ro station will be built. It represents a complex geotechnical structure consist-ing of three different ...Nemanja Stanic, Dragoslav Rakic, Josip Isek, Slavoljub Simic. "Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One" in Lecture Notes in Civil Engineering, Springer Nature Singapore (2024). https://doi.org/10.1007/978-981-97-8221-5_11
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Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs
Saša Milanović, Ljiljana Vasić (2021)Saša Milanović, Ljiljana Vasić. "Review: Methodological approaches and research techniques for addressing construction and remediation problems in karst reservoirs" in Hydrogeology Journal, Springer Science and Business Media LLC (2021). https://doi.org/10.1007/s10040-020-02280-1
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Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes
Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić (2020)Šifove baze i njihovi Cu(II) kompleksi su poznati po svojoj biološkoj aktivnosti. U ovom radu proučavana je antibakterijska aktivnost protiv gram-negativnih sojeva Escherichia coli, Pseudomonas aeruginosa i Staphilococcus piogenes, kao i Gram-pozitivnih Staphilococcus piogenes i Pseudomonas aeruginosa, zajedno sa antifungalnim dejstvom protiv Musperg strainilusa, A. Takođe, tehnički jednostavni i brzi testovi kao što su ABTS, HORAC i ORAC korišćeni su za ispitivanje antioksidativne aktivnosti kako bi se uporedili dobijeni rezultati sa različitim tipovima testova. Uprkos tome što je princip ...... and HORAC tests. In the observed series of compounds, many compounds showed significant biological activity. IC5o values are in the range of 0.209 - 0.655 mM. The studied Cu (II) complexes showed better antimicrobial activity compared to Schiff bases. Technically simple and rapid tests like ABTS ...
... ORAC and HORAC tests. In the observed series of compounds, many compounds showed significant biological activity. IC5o values are in the range of 0.209 - 0.655 mM. The studied Cu (II) complexes showed better antimicrobial activity compared to Schiff bases. Technically simple and rapid tests like ABTS, ...Aleksandar Mijatović, Milan Nikolić, Snežana Spasić, Aleksandra N. Žerađanin, Kristina Joksimović, Aleksandar Lolić, Rada Baošić. "Antioxidant and antimicrobial activity of some tetradentate Schiff bases and their Cu (II) complexes" in XIII Conference of Chemists, Technologists and Environmentalists of Republic of Srpska, University in Banjaluka, Faculty of Technology (2020)
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Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One
In order to solve serious traffic congestion in Belgrade, a number of studies regarding the Belgrade Metro construction have been carried out since 1973. However, only in 2019, the routes of the future metro lines 1 and 2 were defined as a part of the General Metro Construction Project. The lines are designed to intersect at the location of Sava Square, where an interchange metro station will be built. It represents a complex geotechnical structure consisting of three different ...Nemanja Stanić, Dragoslav Rakić, Josip Isek, Slavoljub Simić. "Geotechnical Conditions for Construction of Savski Trg Metro Station as a Part of the Belgrade Metro Line One" in Proceedings of the 5th International Conference on Transportation Geotechnics , Springer Nature Singapore (2024). https://doi.org/10.1007/978-981-97-8221-5_11
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Control of substructure construction of railways in the Republic of Serbia
Контрола збијености природног тла (у ископу) или збијеног у насипу при изградњи саобраћајница представља један од основних облика контроле квалитета доњег строја. Код изградње брзих саобраћајница (аутопутеви и брза железница) приоритет је постизање високог нивоа контроле извршених радова. У циљу онемогућавања диференцијалног слегања (при изградњи насипа), или промене запремине услед допунског збијања материјала, које неминовно доводе до деформација, потребно је извршити оптимално збијање материјала. У оквиру овог рада приказује се техничка регулатива која регулише контролу збијености при изградњи железничке ...... regulations. The consequences of such tests often lead to the degradation of the substructure, which results in the need to repair and reduce the speed. It is an indisputable fact that this test method is used as faster one in the world, but it is carried out with other tests: determination of Dpr, water content ...
... the dynamic modulus of deformation, Evd is obligatorily performed along with other tests and the stated correlation relations. Due to the fact that it is not standardized in the Regulations for main railways, tests by determining the dynamic modulus of deformation Evd are not even listed, so based ...
... (by granulometric composition and moisture) and in statistically reliable research conditions. Perform the necessary tests and correlations and, based on them, perform further tests with a 606 STEPGRAD2022 PROCEEDINGS OF INTERNATIONAL CONFERENCE ON CONTEMPORARY THEORY AND PRACTICE IN CONSTRUCTION ...Dragan Lukić, Dragoslav Rakić, Irena Basarić Ikodinović. "Control of substructure construction of railways in the Republic of Serbia" in International Conference On Contemporary Theory and Practice in Construction XV, Banja Luka 16-17 jun 2022., University of Banja Luka Faculty of Architecture, Civil Engineering and Geodesy (2022)
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Properties of fly ash and slag from the power plants
This paper describes the physical, chemical and mineral properties of ash and slag, which were taken from thermal power plants Nikola Tesla A, Nikola Tesla B, Kostolac A and Kostolac B. The knowledge of the mineralogical material composition is important because the type of minerals directly determines the properties of the fly ash and slag and their possible application. Laboratory tests showed that ash and slag samples consist of the following minerals: amorphous materials, quartz, feldspar, mullite, melilite, cristobalite, ...fly ash, slag, physical composition, chemical composition, mineral composition, X-ray diffraction methodMiloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić. "Properties of fly ash and slag from the power plants" in Geologia Croatica, Zagreb : Croatian Geological Survey (2016). https://doi.org/10.4154/gc.2016.26
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Phase relations and physical indicators of municipal waste from old landfills in Serbia
Due to certain similarities of municipal waste and soil, usually for the determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal waste physical state can be found in the literature. The basic reasons should be found in different definitions and methods that researchers use ...municipal waste, moisture content, unit weight, specific gravity, grain size distribution, porosityGeneral Computer Science... determination of basic parameters of physical state, laboratory and field tests which are common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal ...
... determination of basic parameters of physical state, laboratory and field tests which arec common in geotechnical investigations are used. It is often to construct an apparatus for special purpose to perform some specific laboratory and field tests. Therefore, different values of indicators of municipal ...
... one active landfill that is currently used for waste disposal Novi Sad and from one closed landfill Belgrade — Ada Huja (Rakić, 2013). All laboratory tests were performed on waste material that was taken from the landfills by exploratory drilling: or by digging exploratory pits. After that, ...Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić. "Phase relations and physical indicators of municipal waste from old landfills in Serbia" in Japanese Geotechnical Society Special Publication, The Japanese Geotechnical Society (2021). https://doi.org/10.3208/jgssp.v09.cpeg016
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Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja
Jovana M. Janković Pantić (2022)Odlaganje otpada na komunalne deponije predstavlja osnovni način zbrinjavanja otpada u Srbiji. Kako bi se prostor za deponovanje materijala racionalno koristio potrebno ga je svakodnevno zbijati sa unapred definisanom količinom vode koja se dodaje. Dobro zbijeni komunalni otpad zauzima manju zapreminu i omogućuje sigurnije skladištenje, pa je korisno prethodno laboratorijski odrediti parametre zbijanja: maksimalnu suvu zapreminsku težinu (dmax) i optimalnu vlažnost (wopt). U Srbiji do sada nisu određivani parametri zbijanja, dok je u svetu primenjivana standardna metoda (Proktorov opit) ...Jovana M. Janković Pantić. Geotehnički efekti razaranja komunalnog otpada različitim postupcima zbijanja, Beograd : [J. Janković Pantić], 2022
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Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста
One of the specificities of reservoirs forming in highly karstified terrains is reflected in the wide range of unknowns, specifically during reservoir formation, filling and operation. Unfortunately, despite complex research, many reservoirs constructed in karst terrains have problems with water losses from the reservoir to other aquifers due to ponor and ponor zones which are a common in the karst of Eastern Herzegovina. One of such zones is Šuković ponor located in the southern part of the Cerničko polje ...Петар Војновић, Саша Милановић, Љиљана Васић. "Оцјена водопропусности понорске зоне Шуковићу (Цернићко поље) помоћу Лижоновог теста " in Мултидисциплинарна конференција “Kарст 2022 - Значај, стање и перспективе коришћења и заштите ресурса у карсту", Српска академија наука и уметности (2022)
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Effects of bentonite binder dosage on the properties of green limestone pellets
Vladimir Jovanović, Dinko Knežević, Živko Sekulić, Milan Kragović, Jovica Stojanović, Slavica Mihajlović, Dragana Nišić, Dragan Radulović, Branislav Ivošević, Milan Petrov (2016)This paper presents the results of tests carried out to determine how the dosage of bentonite added as binder, affects the properties of green pellets made of the limestone fines that originate from Lithothamnium limestone processing. Bentonite was added to limestone in different mass fractions (1, 2.5, 5 and 10%), whereas all the other parameters of the pelletizing process remained constant. The aim of pelletizing was to consolidate limestone fines and form mechanically stable pellets, provided that all the ...Vladimir Jovanović, Dinko Knežević, Živko Sekulić, Milan Kragović, Jovica Stojanović, Slavica Mihajlović, Dragana Nišić, Dragan Radulović, Branislav Ivošević, Milan Petrov. "Effects of bentonite binder dosage on the properties of green limestone pellets" in Chemical Industry, Beograd : National Library of Serbia (2016). https://doi.org/10.2298/HEMIND160210023J