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Упит dcterms_subject_txt:magnetic properties

367 items

  • Comprehensive Profiling of Microbiologically Induced CaCO3 Precipitation by Ureolytic Bacillus Isolates from Alkaline Soils

    Olja Šovljanski, Lato Pezo, Jovana Stanojev, Branimir Bajac, Sabina Kovač, Elvira Tóth, Ivan Ristić, Ana Tomić, Aleksandra Ranitović, Dragoljub Cvetković, Siniša Markov (2021)
    MICP process, kinetic study, calcite, vaterite, MALDI-TOF identification, Bacillus licheniformis, Sporosarcina pasteurii
    ... Additionally, Raman analysis was performed at a range of 100–1500 cm–1 using a DXR Raman microscope (Thermo Scientific, Waltham, MA, USA). The thermal properties were investigated using differential thermal and thermogravimetric analysis (DTA/TGA) which was performed in the tem- perature range up to 1000 ◦C ...
    ... ureolysis by Sporosarcina pasteurii. J. Appl. Microb. 2015, 118, 1321–1332. [CrossRef] 11. Krajewska, B.; Ureases, I. Functional, catalytic and kinetic properties: A review. J. Mol. Catal. B Enzym. 2009, 59, 9–21. [CrossRef] 12. Whiffin, V.S.; van Paassen, L.A.; Harkes, M.P. Microbial carbonate precipitation ...
    ... [CrossRef] [PubMed] 33. Vahabi, A.; Ramezanianpour, A.A.; Akbari Noghabi, K. A preliminary insight into the revolutionary new line in improving concrete properties using an indigenous bacterial strain Bacillus licheniformis AK01, as a healing agent. Eur. J. Environ. Civil. Eng. 2014, 19, 614–627. [CrossRef] ...

  • Design of a sucker rod pumping system

    Ana Ponoćko (2024)
    For a long time in the history of oil production, sucker rod pumps have been the first and in many cases the only choice when it comes to mechanical extraction methods. Proper selection of each individual element of the system enables optimization, which entails benefits in the form of increased efficiency and reduced costs. The first part of the paper presents the underground and surface equipment of the rod pump and describes the operation of the entire system. The ...
    sucker rod pump, fluid production, mechanical extraction methods,, Prosper, QROD, RODSTAR
    ... input screen at any time. RodStar allows users to design rod pumping systems by inputting parameters such as well depth, fluid properties, and mechanical properties of rods and pumps. The software simulates the behavior of the pumping system under various operational conditions, enabling engineers ...
    ... carbon– manganese and nickel-molybdenum groups. The latter alloy group may include additional elements to enhance strength, improve structural properties, and achieve specific technical characteristics. These elements include nickel, chromium, copper, molybdenum, and boron. Steel rods are classified ...
    ... ): 16% UVEAMNOE diič 50% PoLrod.dlsm. 4:6"(S1Bmn) | Funuablaioad Power(KiVh 3 PRRPIMHP. — 06 puLiunu i Fluid load on pump (N): 3494 - , Fluid Properties Motor & Power Meter Fluid level tvd (m from surface): — 120 Buoyan rodwelghM(N): 16815 268 EOk Pol. Rod Power (KW): 5 NNo: 035 , Fo/SKr: 039 Water ...

  • Sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja

    Anđela Jovanović (2024)
    Predmet i cilj pisanja ovog rada su sinteza i karakterizacija vanadata alkalnih metala sa elementima retkih zemalja. Prilikom ovih istraživanja, ispitivan je sistem REE2O3–V2O5–KF, gde REE predstavlja trovalentni katjon izabranih elemenata retkih zemalja (Y, Sm, Eu, Gd, Er, Yb). Ovo istraživanje bazirano je na sintezi kristala, nakon čega su dobijeni kristali posmatrani pod binokularnom lupom, analizirani metodom rendgenske difrakcije na polikristalnom materijalu (XRPD) i metodom skenirajuće elektronske mikroskopije sa energetsko-disperzivnom spektroskopijom (SEM-EDS), kako bi se utvrdile karakteristike dobijenih kristala. ...
    elementi retkih zemalja, sinteza kristala metodom fluksa, vanadati alkalnih metala, rendgenska difrakcija, SEM-EDS metoda

  • Insights into dike nucleation and eruption dynamics from high-resolution seismic imaging of magmatic system at the East Pacific Rise

    Milena Marjanović, Suzanne M. Carbotte, Alexandre Stopin, Satish C. Singh, René-Édouard Plessix, Miloš Marjanović, Mladen R. Nedimović, Juan Pablo Canales, Hélène D. Carton, John C. Mutter, Javier Escartín (2023)
    Multidisciplinary

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... inflectional properties. The letter K at the beginning of the inflectional code determines the word type, or part of speech (POS), for example, N for noun, V for verb, etc., whereas nnn represents the ordinal number of the inflectional class for a particular POS. The inflectional properties of the class ...
    ... class. The +SinSem marks, which are not obligatory, but if present, may be multiple, describe the syntactic, semantic, derivational and other properties of the lemma. Thus, for example the noun devojka (girl) appears in the DELAS dictionary as: devojka,N618+Hum+Ek which means that devojka is a noun ...

  • Hydrochemical changes and groundwater grouping data by multivariate statistical methods within one karst system: recharge–discharge zone (Eastern Serbia case study)

    Ljiljana Vasić, Dragana Živojinović, Vladana Rajaković-Ognjanović (2020)
    Geochemistry and Petrology

  • Палеомагнетски резултати из Тимочког магматског комплекса, Источна Србија

    Весна Лесић, Емо Мартон, Драган Лукић, Весна Цветков (2018)
    ... peci‐ mens of selected samples, one with alternating field, the other with thermal method (accompanied by  the monitoring of the magnetic susceptibility) till the magnetic signal was lost. The demagnetization me‐ thod which gave better results was used to demagnetize the rest of the samples from eac ...
    ...  of the series with 53.34 mole% ilmenite  (Luković  et  al., 2017), but   our magnetic mineralogy  experiments  suggest different  composition.  The  Curie‐point measurements show that during the first heating two magnetic minerals can be recognized,  one at 409°C , the other at the Curie‐point of t ...
    ... ing repeated  heating and cooling the first magnetic phase appears at 300°C., while magnetite remains stable. Similar  behaviour was observed during  the  stepwise  thermal demagnetization of  the 3‐component  IRM.  It  is  quite possible that the magnetic phase with the lower and changing Curie poi ...

  • NMR kinetic studies of the interactions between [Ru(terpy)(bipy)(H2O)]2+ and some sulfur-donor ligands

    Aleksandar Mijatović, Biljana Šmit, Ana Rilak, Biljana Petrović, Dragan Čanović, Živadin D. Bugarčić (2012)
    Reakcije supstitucije monofunkcionalnog [Ru(terpi)(bipi)(H2O)]2+ kompleksa, gde je terpi = 2,2′:6′,2″-terpiridin i bipi = 2,2′-bipiridin, sa biološki relevantnim sumporo donorskim ligandima, kao što su tiourea, l-metionin, l-cistein i glutation, proučavane su u vodenim rastvorima tehnikom 1H i 13C NMR spektroskopije. Sve reakcije su proučavajne na pH 7,4, u prisustvu fosfatnog pufera, da bi se oponašalo fiziološko okruženje tokom procesa supstitucije. Reakcije se izvode na 295 K pod uslovima reakcija drugog reda. Uočeni rezultati pokazuju da brzina supstitucije snažno zavisi ...
    Materials Chemistry,Inorganic Chemistry,Physical and Theoretical Chemistry

  • 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
    ... storage coefficient, specific storage, and effective porosity were adopted based on international reports [22-25], related to the hydrogeological properties of sediments with similar characteristics. Boundary conditions The following boundary conditions were specified in the hydrodynamic model ...
    ... Simulation of Flow and Advective Transport, Academic Press, San Diego, CA, 381p, 1992. 24. Rehm, B. W., Groenewold G. H. and Morin, K. A., Hydraulic Properties of Coal and Related Materials, Northern Great Plains, Ground Water, Vol. 18, No. 6, 551-561, 1980, http://dx.doi.org/10.1111/j.1745-6584.1980 ...

  • Damage quantification of built stone on Dark Gate (Belgrade, Serbia): sample of damage index application for decay rate evaluation

    Maja Franković, Nevenka Novaković, Vesna Matović (2015)
    The Dark Gate is the monument of culture, part of the cultural and historical complex of the Belgrade Fortress. It is constructed of limestone blocks that after 270 years of exposure to environmental conditions and different anthropogenic influences show wide ranges of decay forms. During 2007, detail registration of all built limestone microfacies and weathering forms was done using tools of monument mapping. A correlation scheme ‘‘intensity– damage category’’ was made according to the type, intensity, and distribution of ...
    Krečnjak, mapiranje, Indeks raspadanja, brzina raspadanja, progresija
    ... and rate of stone decay depend on these factors acting independently or more frequently together in different combinations, as well as of the properties of the stone itself, creating stresses that accumulate within stonework over time. Therefore, the rate of decay and weathering effects can vary ...
    ... fortress of Belgrade, 2nd edn, Javno preduzece “Beogradska tvrdjava”, Belgrade (in Serbian) Rothert E, Eggers T, Cassar J et al (2007) Stone properties and weathering induced by salt crystallization of maltese globigerina limestone. In: Prikry1 R, Smith B J (ed) Building stone decay: from diagnosis ...
    ... Siegsmund S, Sterflinger K (2011) Characterisation of stone deterioration on buildings. In: Siegsmund S, Snethlage R (eds) Stone in architecture, properties, durability, 4th edn. Springer, Heilderberg, pp 347—410 Siegesmund S, Weiss T, Volibrecht A (2002) Natural stone, weathering phenomena, co ...

  • Sustainable Modularity Approach to Facilities Development Based on Geothermal Energy Potential

    Nataša Čuković-Ignjatović, Ana Vranješ, Dušan Ignjatović, Dejan Milenić, Olivera Krunić (2021)
    The study presented in this paper assessed the multidisciplinary approach of geothermal potential in the area of the most southeastern part of the Pannonian basin, focused on resources utilization. This study aims to present a method for the cascade use of geothermal energy as a source of thermal energy for space heating and cooling and as a resource for balneological purposes. Two particular sites were selected—one in a natural environment; the other within a small settlement. Geothermal resources come ...
    геотермална енергија, Панонски басен, геотермална каскада, енергетска ефикасност, бањски центри, балнеологија, биоклиматска архитектура, стратегије пасивног дизајнирања, модуларни објекти
    ... electricity production is mainly related to specific tectonic regions, its direct use is more common. Coupling the energy potential with the healing properties of water’s temperature and chemical composition, is recognized as a versatile and efficient way of exploiting this geothermal resources [6–9]. Hot ...
    ... electricity production is mainly related to specific tectonic regions, its direct use is more common. Coupling the energy potential with the healing properties of water’s temperature and chemical composition, is recognized as a versatile and efficient way of exploiting this geothermal resources [6-9]. Hot ...
    ... (In Serbian) 12. Dokmanović, P.B.; Krunić, O.Ž.; Martinović, M.K.; Magazinović, S.M. Hydrogeothermal Resources in Spa Areas of Serbia: Main Properties and Possible Improvement of Use. Therm. Sci. 2012, 16, 21–30. [CrossRef] 13. Republic Agency for Spatial Planning of the Republic of Serbia. Spatial ...

  • Efikasnost različitih tipova glina Srbije za adsorpciju metilen plavog

    Maja D. Milošević (2016-12-09)
    Adsorpciona efikasnost različitih uzoraka glina sa lokaliteta Srbije određenaje njihovim tretiranjem različitim koncentracijama rastvora metilen plavog (MP).Detaljna mineraloška karakterizacija ispitivanih glina i rezultati njihove interakcijesa rastvorima MP dobijeni su primenom optičkih, rendgenskih, hemijskih, DTA ispektroskopskih metoda.Na osnovu formiranja MP agregata u izmenljivim pozicijama i površiničestica gline, razlikuju se dva tipa glinovitih minerala: visoko naelektrisani(smektiti) i nisko naelektrisani (kaoliniti). Dimeri se stvaraju na naelektrisanimpovršinama, a granica njihovog razvoja omogućuje determinaciju mineralne vrste.Molekuli MP stoje pod uglom od 21.5o kada se ...
    minerali glina, metilen plavo, kristali metilen plavog, difuznarefleksija, adsorpcija, flokulacija, naelektrisanje slojeva
    ... Electrokinetic and rheological properties of Na- bentonite in some electrolyte solutions. Microporous and Mesoporous Materials 117: 331 - 338 Duran J.D.G., Ramos-Tejada M.M., Arroyo F.J. and Gonzalez-Caballero F. 2000. Rheological and electrokinetic properties of sodium montmorillonite suspensions ...
    ... of water in montmorillonite. Clays & Clay Miner. 42 (6): 702 - 716 Bodman S.W., Kodama S.P., Pfeil P.C and Stevens R.E. 1967. Solubility and properties of two crystalline phases of methylene blue. Journal of chemical and engineering data 12: 4 Borkovec M., Wu Q., Degovics G., Laggner P. and ...
    ... &user=yoRdi8AAAAAJ&citation_for_view=yoRdi8AAAAAJ:9yKSN-GCB0IC 115 Bujdak J. 2006. Effect of the layer charge of clay minerals on optical properties of organic dyes. A review. Applied Clay Science 34: 58 - 73 Bujdak J. and Iyi N. 2002. Visible spectroscopy of cationic dyes in dispersions ...

  • Terminology Acquisition and Description Using Lexical Resources and Local Grammars

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Biljana Lazić (2015)
    Acquisition of new terminology from specific domains and its adequate description within terminological dictionaries is a complex task, especially for languages that are morphologically complex such as Serbian. In this paper we present an approach to solving this task semi-automatically on basis of lexical resources and local grammars developed for Serbian. Special attention is given to automatic inflectional class prediction for simple adjectives and nouns and the use of syntactic graphs for extraction of Multi-Word Unit (MWU) candidates for ...
    ... Systems (Vol. 6177, pp. 248-255): Springer Berlin Heidelberg. Justeson, J. S., & Katz, S. M. (1995). Technical ter- minology: some linguistic properties and an algo- rithm for identification in text. Natural Language Engineering, 1 (01): 9-27. doi:10.1017/S1351324900000048 Krstev, C. (2008). ...
    ... multiword expression prediction for grammar engineering. Proc. of the Workshop on Multiword Expressions: Identifying and Exploiting Underlying Properties. (pp. 36-44). Proceedings of the conference Terminology and Artificial Intelligence 2015 (Granada, Spain) 89 ...

  • Природни потенцијал минералних вода Србије - Natural potential of mineral waters in Serbia

    Оливера Крунић (2021)
    минералне воде

  • Mean-based iterative methods for finding multiple roots in nonlinear chemistry problems

    Dejan Ćebić, Nebojša M. Ralević (2021)
    нелинеарне једначине, поступци засновани на срединама, вишеструки корени,

  • Substitution reactions of some novel sterically hindered monofunctional Pd(II) complexes

    Aleksandar Mijatović, Jovana Bogojeski, Biljana Petrović, Živadin D. Bugarčić (2011)
    Reakcije supstitucije monofunkcionalnih kompleksa [(TLtBu)PdCl]+ i [Pd(tpdm)Cl]+, gde je TLtBu = 2,6-bis[(1,3-di-terc-butilimidazolin-2-imino)metil]piridin i tpdm = terpiridindimetan, sa nukleofilima kao što su: tiourea, I−, Br−, NO2−, piridin i dimetil-sulfoksid (DMSO) proučavani su u 0,1 M vodenom rastvoru NaClO4 u prisustvu 10 mM NaCl. Reakcije su sprovedene na tri različite temperature (288, 298 i 308 K) korišćenjem tehnike zaustavljenog protoka na različitim temperaturama. Reakcije supstitucije su praćene pod uslovima pseudo prvog reda sa velikim viškom nukleofila. Dobijeni rezultati pokazuju da kompleks ...
    Materials Chemistry, Inorganic Chemistry, Physical and Theoretical Chemistry
    ... whereas the highest reactivity shows thiourea compared to the other used ligands. Thiourea is a very useful nucleophile since it combines the ligand properties of thiolates (r-donor) and thio- ethers (r-donor, p-acceptor) [22,24] so it shows the strongest nucleophilicity. Our results confirm this explanation ...
    ... whereas the highest reactivity shows thiourea compared to the other used ligands. Thiourea is a very useful nucleophile since it combines the ligand properties of thiolates (o-donor) and thio- ethers (o-donor, m-acceptor) [22,24] so it shows the strongest nucleophilicity. Our results confirm this explanation ...

  • Flood protection and water utilization of karst poljes: example of Gatačko Polje, Eastern Herzegovina

    Tina Dašić, Ljiljana Vasić (2020)
    Earth-Surface Processes,Geology, Pollution, Soil Science, Water Science and Technology, Environmental Chemistry,Global and Planetary Change

  • Mineral Resources of Serbia: Environmental, Societal and Economic Challenges

    Vladimir Simić, Rade Jelenković, Dragana Životić (2019)
    ... acid (FA) composition of the source triglycerides and it determines some critical properties of biodiesel, like viscosity, density, low temperature properties, oxidation stability, etc. Relationships between properties of biodiesel and its FAME contents have been reported previously (Giakoumis 2013; ...
    ... Biodiesel Resources and Comparison of Their Fuel, Engine and Emission Properties.” Renewable and Sustainable Energy Reviews 43: 495—520. doi:10.1016/j.rser.2014.11.049. Tang, H., S. O. Salley, and K. Y. Simon Ng. 2008. “Fuel Properties and Precipitate Formation at Low Temperature in Soy-, Cottonseed- ...
    ... reserved. No part of this book may be reproduced, stored in a retrieval system or transmitted in any form or by any means: electronic, electrostatic, magnetic, tape, mechanical photocopying, recording or otherwise without the written permission of the Publisher. We have partnered with Copyright Clearance ...

  • Отпад из процеса сагоревања угља као сировина за добијање елемената ретких земаља

    Бојан Земљак (2024)
    Због великог броја индустрија у којима се користе ови ресурси, глобална економија се у великој мери ослања на елементе ретких земаља. Елементи ретких земаља су есенцијална сировина — материјал за развој савремених технологија, али у односу на њихову огромну потражњу, њихово вађење је ограничено и повезано је са значајним утицајима на животну средину. Због њихове ограничене доступности, проблема који се јављају при процесима експлоатације, све више и више земаља почиње да тражи повољније могућности вађења елемената [REE] из секундарних ...
    Елементи ретких земаља, резерве, употреба, представници и методе опоравка елемената ретких земаља
    ... with HfNiGa2-Type Structure: Synthesis, Structure, and Physical Properties. Chemistry of materials, 16(3), p.466-476. [52] Freeman, A.J. and Watson, R.E., 1962. Theoretical investigatiton of some magnetic and spectroscopic properties of rare-earth ions. Physical Review, 127(6), p.2058. [53] Johansson ...
    ... order transition at the Curie point of gadolinium (silicon germanium). lowa State University. [147] Ivchenko, V.V., 2002. Magnetic, Caloric and Crystallographic Properties of Dy5 (SixGe1-x) 4 Alloys (No. IS-T 2075). Ames Lab., Ames, IA (United States). [148] Wall, F., 2014. Rare earth elements ...
    ... [DTPA] – egrnm. Diethylenetriamine pentaacetate . [IL] — eprn. Jonic liquid . [EDDS] – eprn. Efhylenediamine-N,N'-disuccinic acid . [MRI] – enrm. Magnetic resonance imaging .· IEDR] – egrn. Economically Demonstrated Resources . [TPEO] – eprz. Total rare earth oxide Canp:ikaj: IP.4:10 EGRRRRR ...