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Упит dcterms_subject_txt:water loss

157 items

  • Advancing Sentiment Analysis in Serbian Literature: A Zero and Few-Shot Learning Approach Using the Mistral Model

    Milica Ikonić Nešić, Saša Petalinkar, Mihailo Škorić, Ranka Stanković, Biljana Rujević (2024)
    Ova studija predstavlja analizu sentimenta srpskih starih romana iz perioda 1840-1920, koristeći veliki jezički model (LLM) Mistral za tehniku učenja sa zasnovani na takozvanim "zero" i "few-shot" pokušajima. Glavni pristup uvodi inovacije osmišljavanjem istraživačkih upita (promptova) uključuju tekst sa uputstvom za klasifikaciju bez primera i na osnovu nekoliko primera, omogućavajući jezičkom modelu da klasifikuje osećanja u pozitivne, negativne ili objektivne kategorije. Ova metodologija ima za cilj da pojednostavi analizu osećanja ograničavanjem odgovora, čime se povećava preciznost ...
    zero-shot, few-shot, sentiment, Serbian, Mistral model

  • Development of an integrated model for open-pit-mine discontinuous haulage system optimization

    Miodrag Čelebić, Dragoljub Bajić, Sanja Bajić, Mirjana Banković, Duško Torbica, Aleksej Milošević , Dejan Stevanović (2024)
    equipment selection, mine mechanization, expert judgment, linguistic variables, MCDM, FAHP

  • Early–Middle Jurassic brachiopods from Ponor Mountain, Western Balkan Mountains, Bulgaria; taxonomy, biostratigraphy and occurrence in the context of the early Toarcian Oceanic Anoxic Event

    Barbara V. Radulović, Lubomir S. Metodiev, Neda Motchurova-Dekova, Platon Tchoumatchenco (2023)
    Brachiopods, taxonomy, biostratigraphy, early Toarcian Anoxic Event, Bulgaria

  • Izdvajanje vode iz prirodnog gasa

    Dejan Nedeljkov (2024)
    U radu je istaknuto važnost prirodnog gasa kao vitalna komponenta svetske energetike.Spada u najsigurnije,najčistije i najkorisnije fosilno gorivo. Sama pojava vode u vidu vlage u gasu je pokazatelj lošeg kvaliteta gasa. parametri koji mogu dovesti do lošeg kvaliteta prirodnog gasa kao pokazatelj je Wobbe index.U okviru istraživanja u master radu glavni problem funkcionisanja na KPG Paliću predstavlja vlaga u gasu,takođe se može zaključiti da kvalitet gasa zavisi od Wobbe indeksa odnosno, što je Wobbe veći, čistiji je gas, ili ...
    prirodni gas, separatori, separacija, grejači, čileri, tačka rose, Wobbe indeks
    ... impiego delle machine operatrici per il transporto di idrocarburi liqidi o gassoso lungo uno pipeline,S.P.A, MILAN, 1970., str.68 ? F.A.Inkley: Oil loss control in the petroleum industry the Institut of Petroleum, London, 1985., str. 43 11 5.2. Separacija gasa Krajnja faza separacije odvija se ...
    ... impiego delle machine operatrici per il transporto di idrocarburi liqidi o gassoso lungo uno pipeline,S.P.A, MILAN, 1970. godine [15] F.A.Inkley: Oil loss control in the petroleum industry the Institut of Petroleum, London, 1985. godine [16] Bill Smith, C.E. Crest: Design of heavy crude facilities ...

  • Fuzzy expert analysis of the severity of mining machinery failure

    Dejan V. Petrović, Miloš Tanasijević, Saša Stojadinović, Jelena Ivaz, Pavle Stojković (2020)
    Mining machinery failure is almost an everyday occurrence. Usually the failures bare certain consequences, which require additional financial costs to repair and restore the system to its operational state. The consequences are viewed through negative and damaging effects a failure has on the machine, health and safety of the employees, work environment, and on the environment. The removal of the consequences of the failure requires additional financial investment, which has a negative impact on the company’s business. In order ...
    Severity of failure, Severity of failure assessment, Mining machinery, Fuzzy sets, Fuzzy logic

  • Strategic Environmental Assessment in the Application of Preventive Protection for Wind Farm Noise—Case Study: Maestrale Ring Wind Farm

    Boško D. Josimović, Aleksandar Cvjetić, Božidar Manić (2021)
    Determining the spatial position of wind turbines is the initial and most important phase in the development of a wind farm project. In this sensitive phase, all potential problems that may arise in the later stages of project development should be prevented by means of spatial and urban planning instruments. This makes it possible to achieve maximum use of the potential of wind in a particular space and, thus, fulfil the technical and economic requirements of the project while ...
    Energija,energetski inženjering i elektroenergetska tehnologija,obnovljivi izvori energije, održivost i životna sredina,električni i elektronski inženjering,kontrola i optimizacija,inženjering
    ... interference with certain daily activities (speech, sleep and learning); and physiological effect (anxiety, tinnitus, or in the worst case, hearing loss). Problems that have stood out in importance in practice so far relate to the acoustic impact of noise and sleep disturbance to which local populations ...
    ... the SEA process for the Maestrale Ring project was to assess the signifi- cance of the impact of wind farms on the environment: biodiversity, air, water, land, cli- mate change, landscape, cultural heritage, non-ionizing radiation, noise (which is the fo- cus of this work), the effect of shadow flicker ...

  • A survey of greenhouse gases production in central European lignites

    Anna Pytlak, Anna Szafranek-Nakonieczna, Weronika Goraj, Izabela Śnieżyńska, Aleksandra Krążała, Artur Banach, Ivica Ristović, Mirosław Słowakiewicz, Zofia Stępniewska (2021)
    Lignit, Gasovi sa efektom staklene bašte, Ugljen dioksid, Metan, Azotni oksid
    ... perfectly soluble in water but this leads to acidification of the water (Cole and Prairie, 2014). Post-mining waters are also threatened by acidification caused by the oxidation of sulphides (Gläßer et al., 2011). At low pH, the water solu- bility of CO2 decreases substantially, thus, water chemistry has a ...
    ... crushed lig- nite was placed in dark glass bottles (total capacity 60 cm3) and supple- mented with an appropriate volume of a deionised water to achieve 200% of total water capacity (reflect natural conditions). The bottles were tightly closed with a rubber septa and aluminium cap to allow for headspace ...
    ... on extremely oxygen-sensitive enzymes (e.g., containing Fe\\S cluster) (Sheehan et al., 2015; Sikora et al., 2017). Their deactivation leads to the loss of en- ergy conservation by microbiota and as a consequence cessation of methane production. Interestingly, xylodetritic lignite extracted from the ...

  • Improving Document Retrieval in Large Domain Specific Textual Databases Using Lexical Resources

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Olivera Kitanović (2017)
    Large collections of textual documents represent an example of big data that requires the solution of three basic problems: the representation of documents, the representation of information needs and the matching of the two representations. This paper outlines the introduction of document indexing as a possible solution to document representation. Documents within a large textual database developed for geological projects in the Republic of Serbia for many years were indexed using methods developed within digital humanities: bag-of-words and named ...
    ... part of these data was transformed in machine readable and structured format. The better part is still in paper form, and thus sub- ject to decay or loss. An analysis of the way geological research results, stored in numerous archives and document libraries, were used, showed that this usage was inefficient ...
    ... consist of projects, archival documents and bibliographies, library of geological projects documentation and exploration-exploitation approvals for water and solid min- eral resources. Within the geo-portal access to applications for document search and retrieval is available. A textual database of special ...
    ... The noun kvalitet ‘qual- ity’, adjective podzemni ‘underground’ and toponym Beograd have unambiguous lemmas, whereas voda can correspond to nouns ‘water’ and ‘platoon’, but also A u t h o r P r o o f 16 R. Stanković et al. to a form of the verb vodati ‘to lead someone’. The system also recognizes ...

  • Preliminary regional landslide susceptibility assessment using limited data

    Igor Peshevski, Milorad Jovanovski, Biljana Abolmasov, Jovan Papic, Uroš Đurić, Miloš Marjanović, Ubydul Haque, Natasha Nedelkovska (2019)
    In this paper a heuristic approach for preliminary regional landslide susceptibility assessment using limited amount of data is presented. It is called arbitrary polynomial method and takes into account 5 landslide conditioning parameters: lithology, slope inclination, average annual rainfall, land use and maximum expected seismic intensity. According to the method, in the first stage, a gradation is performed for each of the carefully selected conditioning parameters by assigning so called rating points to the grid cells on which the ...
    klizišta, podložnost
    ... (Probistip, Makedonska Kamenica, Delcevo and Tetovo in 2015, 2016, 2017, 2018 respectively) are clear examples of such scenarios. Apart from the economic loss, some of these landslides have been life- threatening and human losses have been reported (PESHEVSKI et al., 2017). In the absence of more precise ...
    ... developed network of regional and local roads (mostly in the mountains), ski centers, and a very important hydro energy system consisting of 130 km of water distribution channels accompanied by 167 km of service roads. In a geological context, the study area belongs to a larger re- gional tectonic unit ...

  • Overcoming the Low Oral Bioavailability of Deuterated Pyrazoloquinolinone Ligand DK-I-60-3 by Nanonization: A Knowledge-Based Approach

    Jelena R. Mitrović , Branka Divović-Matović, Daniel E. Knutson, Jelena B. Ðoković, Aleksandar Kremenović, Vladimir D. Dobričić, Danijela V. Randjelović, Ivana Pantelić, James M. Cook, Miroslav M. Savić, Snežana D. Savić (2021)
    Poor water solubility of new chemical entities is considered as one of the main obstacles in drug development, as it usually leads to low bioavailability after administration. To overcome these problems, the selection of the appropriate formulation technology needs to be based on the physicochemical properties of the drug and introduced in the early stages of drug research. One example of the new potential drug substance with poor solubility is DK-I-60-3, deuterated pyrazoloquinolinone, designed for the treatment of various neuropsychiatric ...
    pyrazoloquinolinones, nanocrystals, wet media milling, fasted/fed bioavailability
    ... Scientific, Loughborough, UK). Fresh ultrapure water was supplied from a TKA GenPure system (TKA Wasseranfbereitungssysteme GmbH, Neiderelbert, Germany). 2.2. Methods 2.2.1. Preformulation Studies Solubility of DK-I-60-3 Solubility of DK-I-60-3 in distilled water, 0.1 M hydrochloride acid, phosphate buffer ...
    ... samples were diluted in ultra-purified water (1:100, v/v). Zeta Potential Measurements The zeta potential (ZP) of obtained nanocrystal dispersions was determined by Zeta- sizer Nano ZS90 (Malvern Instruments Ltd., Worcestershire, U.K.) after dilution in ultrapure water (conductivity 50 µS/cm) 1:100 (v/v) ...
    ... were pre- Pharmaceutics 2021, 13, 1188 6 of 19 conditioned by methanol and water and then loaded with samples and internal standard solution, while the endogenous impurities were removed by washing the cartridges with water and methanol. The elution was carried out by 1 mL of methanol for 1 min. The ...

  • Curcumin nanonization using an alternative small-scale production unit: selection of proper stabilizer applying basic physicochemical consideration and biological activity assessment of nanocrystals

    Ines Nikolić, Jelena Antić-Stanković, Dragana Božić, Danijela Ranđelović, Bojan Marković, Dominique Jasmin Lunter, Aleksandar Kremenović, Miroslav Savić, Snežana Savić (2020)
    As the number of poorly soluble drugs is increasing, nanocrystals have become very interesting due to wide range of application possibilities. Curcumin was used as a model active ingredient in this work. Even though it has many proven positive effects, due to its physicochemical issues, its possibilities have not been fully exploited. The goal of this work was to select optimal conditions for a top-down method for curcumin nanosuspension production, and to perform their comprehensive characterization applying complementary methodologies: ...
    nanocrystal, curcumin, top-down method, wetball milling

  • A comparison between ARIMA, LSTM, ARIMA-LSTM and SSA for cross-border rail freight traffic forecasting: the case of Alpine-Western Balkan Rail Freight Corridor

    Miloš Milenković, Miloš Gligorić, Nebojša Bojović, Zoran Gligorić (2023)
    železnica, prekogranični teretni saobraćaj, ARIMA, LSTM, SSA

  • Machine learning based landslide assessment of the Belgrade metropolitan area: Pixel resolution effects and a cross-scaling concept

    Uroš Đurić, Miloš Marjanović, Zoran Radić, Biljana Abolmasov (2019)
    Improvements of Machine Learning-based landslide prediction models can be made by optimizing scale, customizing training samples to provide sets with the best examples, feature selection, etc. Herein, a novel approach, named Cross-Scaling, is proposed that includes the mixing of training and testing set resolutions. Hypothetically, training on a coarser resolution dataset and testing the model on a finer resolution should help the algorithm to better generalize ambiguous examples of landslide classes and yield fewer over/underestimations in the model. This ...
    klizišta, podložnost, mašinsko učenje

  • Application of geophysical and multispectral imagery data for predictive mapping of a complex geo-tectonic unit: a case study of the East Vardar Ophiolite Zone, North-Macedonia

    Filip Arnaut, Dragana Đurić, Uroš Đurić, Mileva Samardžić-Petrović, Igor Peshevski (2024)
    General Earth and Planetary Sciences
    ... architecture of ML algo- rithms and the statistical distributions of data guide the training of classification models (typically by minimizing a loss function), which are then applied to the same input variables to predict classes present in the training data. The emphasis was on comparing the ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... Renouard relation. Introduced in the early 1900s, the Hazen–Williams equation determines pipe friction  head  loss  for  water,  requiring  a  single  roughness  coefficient.  Unfortunately  even  for  water  it  may  produce errors as high as ±40% when applied outside a  limited and  somewhat  controversial  ...
    ... ate hydraulics. Proceedings of the 2004  World Water and 23 Environmetal Resources Congress: Critical Transitions in Water and  Environmetal Resources Management 3108‐3115. (на енглеском)  150. Huei‐Chu, L., Tsai‐Feng, C. 2002. Space‐heating and water‐heating energy demands of  the aged in the US.  ...
    ... 276. Todini, E. 2000. Looped water distribution networks design using a resilience index based  heuristic approach. Urban Water 2(2), 115–122. (на енглеском)  277. Todini, E. 2006. On the convergence properties of the different pipe network algorithms.  8th Annual Water Distribution Systems Analysi ...

  • Ефикасност дистрибуције и коришћења природног гаса у домаћинствима

    Dejan Brkić (2010-03-30)
    Природни гас ће се у будућности све више користити као енергент за подмиривање грејних потреба становништва у српским градовима. Стога је потребно изнаћи најповољнији начин употребе природног гаса. Природни гас се може користити за подмирење грејних потреба становништва на два дијаметрално супростављена начина, и то директно, тако што би се гас директно уводио у зграде путем дистрибутивног система за снабдевање гасом и затим сагоревао у гасном котлу којим је сваки стан опремљен (гасни дистрибутивни систем), или индиректно, тако што ...
    prirоdni gаs, distribuciја gаsа,grејаnjе, cеvоvоdi, cеvоvоdnе mrеžе,fаktоr trеnjа pri prоtоku fluidа,urbаnizаm
    ... Renouard relation. Introduced in the early 1900s, the Hazen–Williams equation determines pipe friction  head  loss  for  water,  requiring  a  single  roughness  coefficient.  Unfortunately  even  for  water  it  may  produce errors as high as ±40% when applied outside a  limited and  somewhat  controversial  ...
    ... ate hydraulics. Proceedings of the 2004  World Water and 23 Environmetal Resources Congress: Critical Transitions in Water and  Environmetal Resources Management 3108‐3115. (на енглеском)  150. Huei‐Chu, L., Tsai‐Feng, C. 2002. Space‐heating and water‐heating energy demands of  the aged in the US.  ...
    ... 276. Todini, E. 2000. Looped water distribution networks design using a resilience index based  heuristic approach. Urban Water 2(2), 115–122. (на енглеском)  277. Todini, E. 2006. On the convergence properties of the different pipe network algorithms.  8th Annual Water Distribution Systems Analysi ...

  • Процена ризика од удеса на флотацијском јаловишту "Ваља Фундата

    Милица Илиевски (2024)
    У овом завршном раду под називом: „Процена ризика од удеса на флоатацијском јаловишту „Ваља Фундата““ кроз 8 поглавља описане су примењене методе за управљање флотацијском јаловином, као и могући сценарији удеса који могу настати услед нестабилности брана или природних катастрофа.Рад користи технике попут FMEA и ALARP за анализу ризика, при чему се ризик дефинише као функција вероватноће и последица инцидента.Препоручене су мере за смањење ризика и унапређење стабилности брана,укључујући редовно одржавање и надградњу инфраструктуре.Резултати рада указују да је ризик ...
    флотацијска јаловина, процена ризика, рушење бране, удеси, еколошке последице
    ... Iponena pa3Hka oJ yateca Ha (b-yIoTaniH]CKOM JazmoBHImTy "Bajba ODynanara", 2022, uHTepHu MaTepHjaiı. 6. Graham Wayne J, A procedure for estimating loss of life caused by dam failure, U.S. Department of Interior Bureau of Reclamation, DS0O 99-06 Denver, Colorado. 1999. 7. (“Cn. InacHuak PC” 0p ...
    ... probability of overflow due to heavy rainfall is considered "very low" due to the tailings facility”s capacity to accommodate large volumes of water. Regarding potential human casualties, the worst-case scenario estimates up to 144 victims, while the average number would be around 62, depending ...
    ... flotation tailings facility is classified in Category A due to potential significant environmental consequences, including long-term pollution of water, soil, and air, as well as the risk to the health of the local population living near the facility. The paper recommends measures for risk reduction ...

  • 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
    ... da varira. tl o Obično se ne koristi u zemljanim Treset O; >20 % radovima. • Sadržaj organske materij e Je određen na osnovu metode Žarenja (loss of ignition test method). Postoje i druge metode određivanja, kao što su titracija (titration), ili oksidacija kalijum permaganata KMnO+4 preko ...

  • Синтеза, структурне и магнетне особине Ca1-xGdxMnO3 нанопрахова

    Milena Rosić (2014-12-05)
    У оквиру ове докторске тезе, испитиване су оптималне методе за добијањенанопраха – калцијум манганског оксида допираног јонима гадолинијума. Циљистраживања је испитивање одговарајућих прекурсора који су подесни да седобију чисти нано прахови манганита са перовскитском структуром, као имонофазни чврсти раствори са перовскитском структуром. Као подесан методкоришћена је модификована глицин нитратна метода, а од прекурсора нитрати иацетати одговарајућих метала. Модификација глицин нитратне методе се односина делимичну замену нитрата ацетатима, чиме је ублажена бурност реакције.Испитан је различити однос прекурсора, који дају наночестичне ...
    Наноструктурни материјали, Оксиди, Термална анализа,Рендгенструктурна анализа, Магнетна мерења.
    ... by acetates, in order to control the burn-up reaction. Examined the relationship of various precursors, which give nanosized powders have a small loss in reactions. Synthesized four nanopowders using modified glycine nitrate procedure with the following nominal composition: Ca0.95Gd0.05MnO3, Ca0 ...
    ... 58-61. Wang, Z. L., Yin, J. S., Jiang, Y. D. (1997): Studies of Mn valence conversion and oxzgen vacancies in La1-xCaxMnO3-y using electron energy-loss spectroscopy. Appl. Phys. Lett. 70, 3362-3364. Wang, Y., Sui, Y., Su W. (2008): High temperature thermoelectric characteristics of Ca0.9R0.1MnO3 ...

  • Hidrodinamička analiza procesa starenja bunara sa horzontalnim drenovima na beogradskom izvorištu podzemnih voda

    Đorđije M. Božović (2023)
    Predmet istraživanja doktorske disertacije su bunari sa horizontalnim drenovima beogradskog izvorišta podzemnih voda, drugog najvećeg izvorišta ovog tipa na svetu, čiji je režim rada opterećen procesima intenzivnog starenja prisutnog od samog početka formiranja izvorišta, početkom 1950‒ih godina. Istraživanja sprovedena u okviru izrade disertacije su imala za cilj definisanje nove metodologije izučavanja procesa mehaničkog i biohemijskog kolmiranja drenova izradom detaljnih 3D numeričkih hidrodinamičkih modela, upotrebom postojećih, dostupnih i široko rasprostranjenih računarskih programa. Istraživanja su realizovana simulacijom ostvarenog režima podzemnih voda ...
    modeliranje podzemnih voda, hidrauličke karakteristike drenova, koeficijent propusnosti drenova, prifilterska zona drena, hidraulički otpori na drenovima, kolmiranje drenova, ulazne brzine podzemnih voda, MODFLOW, CLN Package
    ... Detaljan pregled geneze i uticaja pojedinačnih komponenti hidrauličkih gubitaka na rad bušenih bunara (engl. wellbore skin layer loss, gravel pack loss, well screen loss, loss in well interior) – gubitaka na filtraciju kroz tanki sloj na konturi bušenja bunara, gubitaka u prifilterskoj zoni, gubitaka ...
    ... 50010-3 80 Harbaugh, A.W., 2005. MODFLOW-2005, The U.S. Geological Survey modular ground- water model ‒ the Ground-Water Flow Process. USGS Numbered Series, Book 6: Modeling techniques, Section A. Ground-water. DOI: 10.3133/tm6A16 81 van Heeswijk, M., Cox, S.E., Huffman, R.L., Curran, C.A., 2008 ...
    ... Improving Source−Water Quality, Volume 43, Springer, Dordrecht, 19−27. DOI: 10.1007/0-306-48154-5_2 94 Hunt, J., 2002. American experience in installing horizontal collector wells; Ray, C., Melin, G., Linsky, R.B., (Eds.), Riverbank Filtration: Improving Source–Water Quality, Water Science and Technology ...