Претрага

Упит dcterms_subject_txt:unit weight

140 items

  • SASA Dictionary as the Gold Standard for Good Dictionary Examples for Serbian

    Ranka Stanković, Branislava Šandrih, Rada Stijović, Cvetana Krstev, Duško Vitas, Aleksandra Marković (2019)
    У овом раду представљамо модел за избор добрих примера за речник српског језика и развој иницијалних компоненти модела. Метода која се користи заснива се на детаљној анализи различитих лексичких и синтактичких карактеристика у корпусу састављених од примера из пет дигитализованих свезака речника САНУ. Почетни скуп функција био је инспирисан сличним приступом и за друге језике. Дистрибуција карактеристика примера из овог корпуса упоређује се са карактеристиком дистрибуције узорака реченица ексцерпираних из корпуса који садрже различите текстове. Анализа је показала да ...
    Српски, добри примери из речника, аутоматизација израде речника, издвајање својстава, Машинско учење
    ... e. several attributes are assigned to each feature: code, description, processing level (char, word, and sentence), headword dependency (yes/no), weight (for weighted sum and use in our future model 4 They were chosen according to the principles ...
    ... we have also used the analytic hierarchy process (AHP), where each feature value is converted to a numerical value from 0 to 100 and a numerical weight (priority) is assigned to it (the sum of all weights being 1), which gave us better results. The precision calculated on the evaluation set for the ...
    ... which are mentioned by S. Atkins and M. Rundell: they can complement the definition and help the user understand the meaning of the headword/lexical unit (their informative value); they should show the typical and natural way of behaviour of a word: syntactic patterns, collocations, as well as its ...

  • Application of Lignite Combustion Waste Slag Generated in Heating Plants as a Partial Replacement for Cement. Part II: Physical–Mechanical and Physical–Chemical Characterization of Mortar and Concrete

    Milan Kragović, Nenad Ristić , Jelena Gulicovski, Andrijana Nedeljković, Snežana Pašalić, Ivica Ristović, Marija Stojmenović (2021)
    sagorevanje lignita, otpadna šljaka, zamena cementa, proizvodnja maltera i betona, fizičko-mehanička i fizičko-hemijska karakterizacija
    ... dehydration and decomposition of the hydrates of the silicate-oxides, as well as calcium silicate-oxides [34]. This process has been followed with a weight loss of around 2.60% on the TGA curve. In the second temperature interval (200–600 ◦C) endothermic peaks are observed at 373, 460, and 573 ◦C. The ...
    ... presence of quartz (river sand) and or silicate fume (SiO2) [35]. In this temperature interval (200–600 ◦C) determined mass loss by TG analysis was 3.11%. Weight loss in the third temperature interval (600–800 ◦C) of 2.35% and the endothermic peak at 727 ◦C, is caused by the decomposition of the carbonates, ...
    ... cal characterization of samples are given in Tables 4 and 5 and Figures 1–6. Table 4. Physical properties of fresh and hardened mortar. Parameter Unit E-M P10-M P15-M P20-M P25-M Consistency: by flow table mm 205 ± 7.9 187 ± 7.2 169 ± 7.5 152 ± 6.4 136 ± 6.0 Bulk density of fresh mortar kg/m3 2248 ...

  • Available technological procedures for capturing CO2 in the industrial and power generation sectors

    Lola Tomić, Vesna Karović Maričić, Dušan Danilović, Branko Leković, Miroslav Crnogorac (2021)
    Climate change is a major environmental issue caused by anthropogenic emissions of greenhouse gases. Capturing CO2 and storing it in suitable geological formations is one of the main technological solutions that can provide mitigation of CO2 emission into the atmosphere. Capturing CO2 represents the first phase in process of carbon capture and storage, and includes the application of various technologies for the separation of CO2 produced in the energy and industrial sectors. There are four main systems for capturing ...
    capturing CO2, power plants, CO2 capture systems, CO2 technologies
    ... physical and chemical adsorption. The adsorption is affected by the characteristics of adsorbed particles like polarity, molecular size, and molecular weight, in addition to the characteristics of the adsorbent surface that include pore size and polarity [21]. Typical adsorbents that could be applied include ...

  • Regional Slope Stability Analysis in Landslide Hazard Assessment Context, North Macedonia Example

    Miloš Marjanović, Biljana Abolmasov, Igor Peshevski, James Reeves, Irena Georgievska (2020)

  • Investigation of quantitative indicators of anisotropy based on longitudinal elastic waves propagation velocities with uncertainty

    Miloš Gligorić, Jelena Majstorović, Suzana Lutovac (2018)
    ... Non-destructive Digital Indicating Taster) (Gligorić et. al., 2017). This instrument is projected for application in mines (portable), small dimensions, weight only 3 kg with battery. This device can work on the basis of internal combustion, external combustion and alternating current. It consists of the ...

  • Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

    Hans Peter Nytoft, Geir Kildahl-Andersen, Sofie Lindström, Frode Rise, Achim Bechtel, Danica Mitrović, Nataša Đoković, Dragana Životić, Ksenija A. Stojanović (2019)
    Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMRspectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10?20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270?146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant ...
    Geochemistry and Petrology

  • The Fuzzy–AHP Synthesis Model for Energy Security Assessment of the Serbian Natural Gas Sector

    Aleksandar R. Madžarević, Dejan D. Ivezić, Miloš L. Tanasijević, Marija A. Živković (2020)
    Natural gas is used for the production of almost 20% of total energy today. The natural gas security of the Republic of Serbia is an urgent strategic, political and security issue. Serbia is one of the most vulnerable countries in Southeast Europe, because it only has one supply route. This study is a contribution to efforts to better understand the factors affecting energy security through the implementation of a new methodology based on the fuzzy–AHP synthesis model for measuring ...
    energetska bezbednost, prirodni gas, fazi AHP, AHP višekriterijumska analiza, fazi teorija
    ... consistency index and AHP indicator weight coefficients for the partial and synthesis indicators is presented in Table 28. Symmetry 2020, 12, 908 29 of 42 Table 28. Comparison of the influence of partials indicators on synthesis indicators, random consistency index and weight coefficients for different partial ...
    ... provides outcome ranking. The estimate of relative weights shall be expressed as follows: aij= aij/Σaij (4) for i,j = 1, . . . , n. The criteria weight is then determined using the form: wi= aij/(n·Σaij) (5) for i,j = 1, . . . , n. The consistency check is expressed as follows: bi =wi·the parameter ...
    ... 29 May 2020). [CrossRef] 30. Badea, A.C.; Rocco, C.M.; Tarantola, S.; Bolado, R. Composite indicators for security of energy supply using ordered weight averaging. Reliab. Eng. Syst. Saf. 2011, 96, 651–662. Available online: https: //www.sciencedirect.com/science/article/pii/S0951832010002814 (accessed ...

  • Atmospheric exposure vs burying: influences on damage intensity of built-in kersantite in the monument of the Small Staircase (Belgrade, Serbia)

    Nevenka Novaković, Predrag Dabić, Vesna Matović (2023)
    Proučavan je efekat „zatrpanog kamena“ na intenzitet procesa degradacije prisutnih na kersantitu koji je ugrađen u spomenik Malo stepenište. Istraživanja su vršena na uzorcima stene iz kamenoloma i na oštećenim kamenim blokovima ugrađenim u spomenik. Dok su neki delovi stepeništa bili pod zemljom 90 godina, većina kamenih elemenata je bila izložena različitim uslovima sredine i antropogenim uticajima. Urađeno je detaljno mapiranje trenutnog stanja spomenika kako bi se istražio uticaj “zatrpavanja” i kompleksne geometrije spomenika na tip propadanja i variranje ...
    Raspadanje, Indeks oštećenja, Zatrpavanje, Fizička svojstva, Kersantit

  • Geoenvironmental Investigations at a Smelter Location in Bor (Serbia)

    Petar Papić, Zvonimir Milijić, Jana Stojković, Jovana Milosavljević, Maja Todorović, Marina Ćuk, Željko Kamberović (2014)

  • A Fuzzy Expert Model for Availability Evaluation

    Dejan Ivezić, Miloš Tanasijević, Predrag Jovančić, Radiša Đurić (2019)
    Each technical system within itself carries the great potential danger of possible occurrence of failure and damages. Mining machines are characteristic by great investment values, costs of unplanned shutdowns, complex working conditions, and environment and workers hazards. Systematic monitoring of the mining machinery is of great importance for the management of the mining companies. Availability is the overall concept of quality of service. Includes information regard to operating state, an idle state, a standby state and shut down. The ...
    raspoloživost, ekspertski sistem, fazi teorija, buldozeri
    ... example for machine Liebherr-D is presented in detail. R in this case study determined as, where it is to linguistic variable "excellent" joined weight 0.06. Thereby, fuzzy set excellent is defined as (1): Rexc = (1/0, 2/0, 3/0, 4/0.25, 5/1). In this way the specific values of fuzzy set good for ...

  • Optimization and Analysis of Drilling and Blasting Parameters Using O-Pitblast Software

    Stefan Milanović, Nikola Simić, Lazar Kričak, Milanka Negovanović, Nikola Đokić (2024)
    The development of modern technologies has enabled the application of specialized softwares in the field of mining through various segments and processes, including in works related to drilling and blasting. The application of specialized software for drilling and blasting with the use of modern technologies such as photogrammetry enabled more accurate data from the field for later processing. By processing data and creating a 3D model of the terrain for drilling and blasting works, it can obtain precise data, ...
    optimizacija, 3D model, bušenje, miniranje, O-Pitblast, softver

  • Geochemical study of U, Th and REE mineralizations in Jurassic sediments and hydrochemical characterization of groundwaters in Eastern Serbia – Case study: Plavna area

    Jovan Kovačević, Maja Todorović, Marina Ćuk, Petar Papić (2016)
    jurski sedimenti, uran, torijum, elementi retkih zemalja, podzemna voda, istočna Srbija

  • Mineral and Thermal Waters of Serbia: Multivariate Statistical Approach to Hydrochemical Characterization

    Maja Todorović, Jana Štrbački, Marina Ćuk, Jakov Andrijašević, Jovana Šišović, Petar Papić (2016)

  • Determining the Groundwater Balance and Radius of Influence Using Hydrodynamic Modeling: the Case Study of the Groundwater Source “Šumice” (Kikinda, Serbia)

    Dušan Polomčić, Dragoljub Bajić, Jelena Zarić (2015)
    A groundwater flow model was developed to simulate groundwater extraction from the public water supply source of the City of Kikinda. The hydrodynamic model includes the municipal groundwater source of Kikinda (Šumice and the Jezero Well), but also an extended area where there are groundwater sources that provide water supply to three factories: (MSK, TM and LŽT - Kikinda). Hydrodynamic modeling, based on the numerical method of finite differences will show the groundwater balance of the sources in the ...
    Water supply, Aquifer, Flow, Groundwater regime, Numerical modeling, Particle tracking
    ... represents a grain diameter for which 10%, 50% and 60% of the sample will be finer than it or using another words, 10%, 50% and 60% of the sample by weight is smaller than diameter d10, d50 and d60). According to pumping test data, the transmissibility coefficient in the extended area of Kikinda, depending ...
    ... abstracted in the post-glacial period, during the Holocene: abandoned channel facies, floodplain facies, bog sediments, alluvia, and the youngest unit deposited since the Holocene – the beach facies of the Tisa River. Sedimentological analyses have shown that they were mostly made up of alevrites ...

  • Properties of fly ash and slag from the power plants

    Miloš Šešlija, Aleksandra Rosić, Nebojša Radović, Milinko Vasić, Mitar Đogo, Milovan Jotić (2016)
    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 method
    ... Croatica 69/3320 cal properties of the ash and slag. Sample humidity was examined according to the standard EN 1328-1, the solid particles volume weight test followed the standard EN 1097-7, grain size composi- tion was tested according to EN 933-1, EN 451-2 and SRPS U. B1.018., and the pH value test ...

  • Mechanosynthesis and structural characterization of nanocrystalline Ce1–Y O2– (x=0.1–0.35) solid solutions

    Martin Fabián, Bratislav Antić, Vladimír Girman, Milica Vučinić-Vasić, Aleksandar Kremenović, Shigeru Suzuki, Horst Hahn, Vladimír Šepelák (2015)
    A series of nanostructuredfluorite-type Ce1–xYxO2–δ (0rxr0.35) solid solutions, prepared via highenergy milling of the CeO2/Y2O3mixtures, are investigated by XRD, HR-TEM, EDS and Raman spectroscopy. For thefirst time, complementary information on both the long-range and short-range structural features of mechanosynthesized Ce1–xYxO2–δ, obtained by Rietveld analysis of XRD data and Raman spectroscopy, is provided. The lattice parameters of the as-prepared solid solutions decrease with increasing yttrium content. Rietveld refinements of the XRD data reveal increase in microstrains in the host ceria ...
    Ceria, Yttrium, Solid solution, Mechanosynthesis, Oxygen vacancy, Nanocrystalline material

  • Cutting Resistance Laboratory Testing Methodology for Underwater Coal Mining

    Vladimir Čebašek, Veljko Rupar, Stevan Đenadić, Filip Miletić (2021)
    Geology,Geotechnical Engineering and Engineering Geology
    ... to carry out cutting resistance tests are determined according to the equation: P = γw × h = 10 × (25–60) = 250–600 (kPa) (5) where: γw—water unit weight, γ = 10 (kN/m3), and h—mining depth, h = 25–60 (m). The pressure interval for the cutting resistance test is set according to the depths at which ...
    ... collect relevant data. The testing methodology was initially modified to provide reliable data of cutting resistance per unit of cutting-edge length engaged, KL, and cutting resistance per unit of slice cross-sectional area, KA, especially in the water under different hydrostatic pressures (250–600 kPa), ...
    ... the sample splitting, the size of the wedge penetration into the specimen is recorded [24]. Cutting resistance per unit of cutting-edge length engaged, KL, and cutting resis- tance per unit of slice cross-sectional area, KA, are calculated according to the following equations [14]: KL = P/L (N/cm′) (3) ...

  • The influence of Al<sup>3+</sup>ion on porcine pepsin activity<i>in vitro</i>

    Vesna M. Pavelkić, Kristina R. Gopcević, Danijela Z. Krstić, Marija A. Ilić (2008)
    The in vitro effect of Al3þ ions in the concentration range 1.7·1026M–8.7·1023M on pepsin activity at pH 2, via kinetic parameters and its electrophoretic mobility was evaluated. Kinetic study demonstrated the existence of an activation effect of Al3þ at pH 2 on pepsin molecule. Kinetic analysis with respect to concentrations of haemoglobin showed that Al3þ ions increase the maximal velocity (Vmax) and kcat values rather than apparent affinity for substrate (KS) implying the non-competitive nature of activation which indicated ...
    Пепсин, алуминијум, кинетика, активација, електрофоретска мобилност
    ... by a hinged flexible flap region [1-6]. The represents an appropriate model to study the effects of pepsin consists of 326 residues with molecular weight — metal ions on structure, function and kinetic of 35000Da and it derives from its zymogene ~ behaviour[12,13]. Jo ur na l of En zy me ...
    ... solutions acidified with 0.0!M HCI, pH2), carried out on Beckman UV 5260 UV-VIS spectrophotometer with an electro-thermaltemperature control cell unit. The temperature control performed with DANA - Digital voltmeter model 4800 with chromel-alumel thermocouples. A quartz cell with a 1 cm path ...

  • Specifičnosti izgradnje deonice 3 brze saobraćajnice Požarevac-Golubac na organskom tlu

    Vojislav Lučić (2024)
    U ovom završnom radu prikazani su podaci koji se odnose na metode ojačanja terena izgrađenog od slabonosivog organskog tla, kao i njegove geotehničke karakteristike na primeru šireg istražnog prostora, u okolini sela Kumane duž trase treće dionice brze saobraćajnice Požarevac-Golubac. U radu su prvo prikazane osnovne karakteristike i podele organskog tla i treseta, zatim su navedene metode ojačanja tla koje mogu da se koriste na datom istražnom prostoru i na kraju je izvršena analiza i interpretacija rezultata geotehničkih istraživanja ...
    organsko tlo, treset, metode ojačanja slabonosivog tla, slieganje, konsolidacija i vremenski tok konsolidacije
    ... površina i različite vrste tla. Rezultati analiza Bishopove i Spencerove metode su dati na slikama 18 i 19. 44 0.759| Materisl — [o , | Unit Weight {KN7 |__Strength — |__coheson —| PMi |___Water Name miš} Type- kepa) __| e | surtace wse |E]} _s __{ P |__i __ |s | Noe Mohr- oqsmoro ||BB| _cs ...
    ... Laporovita Mohr- = |MI| = }| |_ o |s |wwwrewe Slika 18 – Kritična klizna površina i faktor sigurnosti dobijen metodom Bishopa [0.827| Materisl Unit Weight (kN7 | __Strength__|__Cohcson | Phi |___Water Name m3} Type_ (kPa} ivl Surface masp ||j i i a 55 | Nome I Organskotio | B 167 ol EJ o |waterTable ...

  • Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit

    Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić (2015)
    ... obtained: No. 3, 2015 Mining & Metallurgy Engineering Bor 58 - angle of internal friction φ = 31º 35' - cohesion C = 138.33 [kN/m2] - volume weight γ = 26.26 [kN/m3] - compressive strength σp = 808.08 [daN/cm2] - tensile strength σz = 75.90 [daN/cm2] - velocity of longitudinal elastic waves ...