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Упит dcterms_creator_txt:Mike W. Morley

577 items

  • Effectiveness Analysis of Different Bucket-wheel Excavators

    Stevan Đenadić, Predrag Jovančić, Dragan Ignjatović, Miloš Tanasijević, Filip Miletić (2021)
    Coal production in open-pit lignite mines in the Republic of Serbia is performed with continuous work systems. In addition to coal production, the same systems are used for the exploitation of large quantities of overburden. According to the reliability concept, continuous systems are in linear connection. If the failure occurs in one part of the system, that will produce a downtime of the entire system. The initial and most important factor of continuous systems is the bucket-wheel excavator. It ...
    bucket-wheel excavator, open-pit coal mine, mining, multi-criteria decision methods

  • Phase relations and physical indicators of municipal waste from old landfills in Serbia

    Dragoslav R Rakić, Irena G Basarić Ikodinović, Jovana M Janković, Tina D Đurić (2021)
    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
    ... parameters are: dry unit weight (ya) expressed by weight-volume ratio - W„/V; porosity (n) expressed by volume ratio - V,/V and moisture content (w) expressed by weight ratio - W„/W.. All three parameters are defined by weight — W (or mass – m) and volume — V (Table 1). This concept is convenient ...
    ... physical parameters of municipal waste (Fassett et al., 1994). Parameter Mark Unit Relations Unit weight Y kN/m) Y=W/V=(I+w) ·Ya Void ratio e mš/m* e= V /V, = | ___I-n Unit weight W a of solid A kN/m* E i ——— particles Vs 1-n 'Volume water v m*/m* v= V Zw.J0 content -% V Yw Volume gas a m*/m* ...
    ... n=m An—n„—To Q) 1_Z H() w=w, — 4 G) m where: mx, mya — initial dry mass and mass of drained water Žuo, }a — Initial dry unit weight and dry unit weight in degradation stage no, n — initial porosity and porosity in a certain stage of degradation Wo, W — initial moisture and moisture ...

  • Minerali sistema Cn3(As, Sb, V,Sn,Ge,W)S4 u ležištima bakra istočne Srbije

    Ljubomir Cvetković (1989)
    Minerali, bakar, Istočna Srbija

  • Development of a petrographic classification system for organic particles affected by self-heating in coal waste. (An ICCP Classification System, Self-heating Working Group – Commission III)

    M. Misz-Kennan, J. Kus, D. Flores, C. Avila, Z. Büçkün, N. Choudhury, K. Christanis, J.P. Joubert, S. Kalaitzidis, A.I. Karayigit, M. Malecha, M. Marques, P. Martizzi, J.M.K. O'Keefe, W. Pickel, G. Predeanu, S. Pusz, J. Ribeiro, S. Rodrigues, A.K. Singh, I. Suárez-Ruiz, I. Sýkorová, N.J. Wagner, D. Životić (2020)
    Self-heating of coal waste is a major problem in the leading coal-producing and consuming countries, independent of the recent or past coal exploitation history. The phenomenon of self-heating is dependent on many factors such as the properties of organic matter (maceral composition and rank), moisture and pyrite content, climate effects, and storage conditions (shape of the dump or compaction of the coal waste). Once deposited, coal waste undergoes oxidation, which can lead to self- heating with the overall temperatures ...
    Stratigraphy,Economic Geology,Geology,Fuel Technology

  • 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
    ... V LN -W 1 V LN -W 2 K N N -W 1 K N N -W 2 TC B - W 1 TC B - W 2 B C B - W 1 B C B - W 2 H C 4 H C l o m n ( n oitc u d or p 4 ss a m yr d g 1- y a d 1- ) 0.0 0.2 0.4 0.6 60.0 80.0 100.0 120.0 K B R V LN -W 1 V LN -W 2 K N N -W 1 K N N -W 2 TC B ...
    ... B - W 1 TC B - W 2 B C B - W 1 B C B - W 2 O C 2 O C l o m n( n oi tc u d or p 2 ss a m yr d g 1- y a d 1- ) 0 100 200 300 400 500 a) b) Fig. 5. Greenhouse gases (GHG) production rate of CO2 (a) and CH4 (b) in the studied lignites. Mean values ± SD. Sample abbreviations ...
    ... . Mastej, W., Bartus, T., Rydlewski, J., 2015. Analysis of lithofacies cyclicity in the miocene coal complex of the Belchatów lignite deposit, south-Central Poland. Geologos 21, 285–302. https://doi.org/10.1515/logos-2015-0021. Meissner, K., 1962. Wlasnosci geotechniczne skal nadkladu w Koninskim Zaglebiu ...

  • Mineralogy and genetic characteristics of the Rudnik Pb-Zn/Cu,Ag,Bi,W polymetallic deposit (Central Serbia) - New occurrence of Pb(Ag)Bi sulfosalts

    Stojanović Jovica, Radosavljević-Mihajlović Ana, Radosavljević Slobodan, Vuković Nikola, Pačevski Aleksandar (2016)

  • Status of the geochemical determination of the solar pp-neutrino flux by LOREX

    Pavićević Miodrag, Amthauer Georg, Aničin Ivan, Bosch Franz, Boev Blažo, Brüchle W., Cvetković Vladica, Djurčić Zoran, Henning W.F., Jelenković Rade, Pejović Vladan, Weiss A. (2012)

  • Simultaneous determination of long-term average fluxes of solar pp-neutrinos and cosmic ray muons. Astrophysics and Space Sciences Transactions (ASTRA).

    Aničin Ivan, Pavićević Miodrag, Amthauer Georg, Boev Blažo, Bosch Franz, Bruchle W., Đurčić Zoran, Faestermann, T., Henning, W.F., Jelenković Rade, Niedermann S., Pejović Vladan, Vermeesch P., Weiss A. (2010)

  • New data for the geochemical determination of the solar pp-neutrino flux by means of lorandite mineral

    Pavićević Miodrag, Bosch F., Amthauer Georg, Aničin Ivan, Boev Blažo, Brüchle W., Faesterman, T., Henning W.F., Jelenković Rade, Pejović Vladan, Djurčić Zoran (2010)

  • Sillakkudirhynchia gen. nov. (Rhynchonellida, Brachiopoda) from the Upper Cretaceous (Campanian) of the Cauvery Basin, southern India: Taxonomy, palaeoecology and palaeobiogeography

    Radulović Barbara, Ayoub-Hanna W., Radulović Vladan, Banjac Nenad (2015)

  • Callovian (Middle Jurassic) Sphriganaria (Brachiopoda) from the Jordan Valley (Middle East)

    Howard R. Feldman, Barbara V. Radulović, Fayez Ahmad (2023)
    Brachiopods, Middle Jurassic, Sphriganaria, shell microstructure, Ethiopian Province

  • The number of unimodular roots of some reciprocal polynomials

    Dragan Stankov (2020)
    We introduce a sequence P2n of monic reciprocal polynomials with integer coefficients having the central coefficients fixed. We prove that the ratio between number of nonunimodular roots of P2n and its degree d has a limit when d tends to infinity. We present an algorithm for calculation the limit and a numerical method for its approximation. If P2n is the sum of a fixed number of monomials we determine the central coefficients such that the ratio has the minimal limit. ...
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • 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
    ... 48) w(0.42) AM(0.21) Q(0.31) K2O(0.83) CaO(0.48) SO3(0.99) MgO(0.30) He(0.20) R(0.74) w(0.75) AM(0.97) Al2O3 SO3(0.86) CaO(0.83) Fe2O3(0.71) MgO(0.29) M(0.76) Ml(0.59) He(0.49) R(0.84) w(0.83) <2.9(0.64) AM(0.18) SO3(0,99) CaO(0.58) Fe2O3(0.98) MgO(0.99) M(0.99) Ml(0.41) He(0.41) R(0.57) w(0.61) ...
    ... R(0.77) w(0.16) <2.9(0.47) AM(0.57) Q(0.48) SiO2(0.82) CaO(0.84) He(0.53) R(0.99) w(0.99) <2.9(0.68) AM(0.98) R He(0.75) SiO2(0.56) Al2O3(0.50) K2O(0.84) AM(0.72) w(0.31) Fe2O3(0.79) <2.9(0.42) MgO(0.61) pH(0.32) CaO(0.98) Q(0.64) Cr(0.43) He(0.53) SiO2(0.99) Al2O3(0.81) K2O(0.98) AM(0.92) w(0.99) Fe2O3(0 ...
    ... Na2O(0.99) Fe2O3(0.99) Kr(0.99) He(0.25) Ml(0.25) R(0.97) w CaO(0.65) K2O(0.33) Al2O3(0.80) SiO2(0.44) He(0.08) R(0.74) CaO(0.97) K2O(0.78) Al2O3(0.36) SiO2(0.65) He(0.34) R(0.96) <2.9 w(0.39) CaO(0.55) K2O(0.63) Al2O3(0.43) M(0.75) R(0.58) w(0.63) CaO(0.47) K2O(0.77) Al2O3(0.99) M(0.99) R(0.63) <63 ...

  • Multi-Criteria Approach for Selecting Optimal Dozer Type in Open-Cast Coal Mining

    Ivan Janković, Stevan Đenadić , Dragan Ignjatović , Predrag Jovančić , Tomislav Šubaranović, Ivica Ristović (2019)
    Analitički hijererhijski proces (AHP), dozeri, eksploatacija uglja, površinski kopovi
    ... FOR PEER REVIEW 5 of 16 1 1 1 2 1 n 11 12 1n 1 1 2 2 2 n 21 22 2n n 1 n 2 n n n1 n2 nn w /w w /w ... w /w a a ... a w /w w /w ... w /w a a ... a M= = ... ... ... ... ... ... ... ... w /w w /w ... w /w a a ... a                         (2) The fourth and final step ...
    ... value that presents priority vector (W). Calculating the priority vector of each element of the analysis by equation number 1 creates the possibility of forming the mathematical matrix M (by Equation (2)). n n i i j jj= 1 j= 1 W 1W = = W i= 1 , . . . ,n W W           (1) Figure ...
    ... value that presents priority vector (W). Calculating the priority vector of each element of the analysis by equation number 1 creates the possibility of forming the mathematical matrix M (by Equation (2)). n n i i j jj= 1 j= 1 W 1W = = W i= 1 , . . . ,n W W           (1) Figure ...

  • On the compatibility of lexical resources for NooJ

    Ranka Stanković, Miloš Utvić, Duško Vitas, Cvetana Krstev, Ivan Obradović (2012)
    Lexical resources for many languages are provided for the NooJ linguistic development environment. Meta-data descriptions of morphosyntactic and semantic properties of these languages and their resources are a mandatory part of each language module. In this paper we analyze how well the meta-data actually describe resources for a chosen subset of languages and to what extent are they compatible across languages to support multilingual processing. We show that there is place for improvement in both directions.
    ... …

    ...
    Rozdział pierwszy: W KTÓRYM FILEAS FOGG I PASSEPARTOUT AKCEPTUJĄ SIĘ NAWZAJEM

    W roku 1872 dom opatrzony numerem siódmym przy Saville Row w Burlington Gardens - dom, w którym w 1814 zmarł Sheridan * - zamieszkiwał szanowny pan Fileas Fogg ...

    ... P+AO+AO2+PDR+PDT+IMT+GPS+GP P+s+p+1+2+3+m+f+n+np+cp+sp Bg s+p+0+d+h+l+o+v+c+f+m+n+y+z+i+a+t+1+2+3+b+w+x+A+B+C+K+ P+F+M+N+R+E+D+I+Y+Z+X+W+Q Sr m+f+n+1+2+3+4+5+6+7+s+p+w+v+q+g+i+a+b+c+d+k+W+P+A+I+Y +G+T+F+S+X+x+y+z+h Table 4. Analysis of *.def metadata: INFLECTION Proceedings of the 2011 ...
    ... mz+f+n 1+2+3 F+G+H+J+K+P+Q+S+T+U+Z Hr S+p m+f+n 1+2+3 INF+INFk+PR+IMP+AO+PDR+PDT+ IMT+GPS+GPP+PER+FUT1+FUT2 Bg S+p f+m+n 1+2+3 R+E+D+I Sr S+p+w x+y+z W+P+A+I+Y+G+T+F+S+X Table 3. Analysis of *.def metadata: VERBS The final table pertaining to results of the analysis of *.def files, namely Table ...

  • Anisotropic grossular–andradite garnets: Evidence of two stage skarn evolution from Rudnik, Central Serbia

    Bojan Kostić, Danica Srećković-Batoćanin, Petyo Filipov, Pavle Tančić, Kristijan Sokol (2021)
    This paper presents LA-ICP-MS data for garnets from the Rudnik skarn deposit (Serbia), which range from Grs45–58Adr40–52Alm2–3 in the core and Adr70–97Grs2–29Sps1 in the rim displaying anisotropy and zoning. In spite of wide compositional variations the garnets near the end-member of andradite (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern ...
    grandite, garnets, skarn, Rudnik
    ... metaso- matism, at higher water/rock ratios (W/R), from magmatic- derived fluids, while Al-rich garnets are formed by diffusive metasomatism, at low W/R ratio, from host rock buffered metasomatic fluids (Gaspar et al. 2008). Significant presence of W suggests hydrothermal fluids derived from granitic ...
    ... 4) shows a flat REE pattern without any signi- ficant enrichment or depletion. Studied garnet zones also show As, W, U, Th and Zr correlations. To be more specific, higher As and W enrichments (up to almost 12 times for both ele- ments) strongly correlate with andradite-rich zone (rim), whereas U ...
    ... (Adr > 90) are generally isotropic. Fe-rich rims exhibit LREE depletion and flat HREE pattern with weak negative Eu anomaly, including higher As and W contents. On the other side, the Fe-poorer core shows flat REE pattern without any significant enrichment or depletion of REE, except higher amounts ...

  • On the distribution modulo 1 of the sum of powers of a Salem number

    Dragan Stankov (2016)
    It is well known that the sequence of powers of a Salem number θ, modulo 1, is dense in the unit interval, but is not uniformly distributed. Generalizing a result of Dupain, we determine, explicitly, the repartition function of the sequence , where P is a polynomial with integer coefficients and θ is quartic. Also, we consider some examples to illustrate the method of determination.
    Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomials

  • Correlation Between Dynamic CBR and Compaction and Bearing Capacity of Pavement Foundation Layers

    Milan Bogdanović, Snežana Bogdanović, Dragoslav Rakić, Irena Basarić Ikodinović (2024)
    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
    ... close to w„„. Additionally, it was observed that, when the water con- tent for dry sample formation increased, CBRy „ decreased to 2.0% of the water content for formation, and then increased again as the water content increased from 2.0% to approximately 9.7% (SP) or 8.8% (MP), approaching w„ . Increasing ...
    ... sults for fine-grained soil under different compaction conditions. The study considered clay material with a water content of approximately + 4% w (maximum dry bulk density p,wax = 1.82 Mg/m*, optimal water content Wop = 15.6%). A comparison between the results of California Bearing Ratio (CBR) ...
    ... as follows: The CBR,,, parameter is correlated with the parameters of the standard and modified Proctor 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 ...

  • Inhibitory effect of platinum and ruthenium bipyridyl complexes on porcine pancreatic phospholipase A2

    Tina Kamčeva, Jörg Flemmig, Bojana Damnjanović, Jürgen Arnhold, Aleksandar Mijatović, Marijana Petković (2011)
    Fosfolipaza pankreasa A2 (PLA2) igra važnu ulogu u ćelijskoj homeostazi kao iu procesu karcinogeneze. Efekti metalo-lekova koji se koriste kao hemoterapeutici na aktivnost ovog enzima nisu poznati. U ovom radu, interakcija između PLA2 svinjskog pankreasa i dva odabrana kompleksa prelaznih metala — tetrahloro(bipiridin) platine(IV) ([PtCl4(bipi)]) i dihloro (bipiridin) rutenijum(III)hlorida ([RuCl2(bipi)2) ]Cl)—proučavana je. Laserska desorpcija/jonizacija uz pomoć matriksa, vremenska masa spektrometrija (MALDI-TOF MS) i fluorescentna spektroskopija korišćeni su za analizu aktivnosti enzima u odsustvu i prisustvu metalnih kompleksa i za ...
    Metals and Alloys, Biochemistry, Biomaterials, Biophysics, Chemistry (miscellaneous)
    ... choice. Tested metal complexes affect the enzymatic aLaboratory of Physical Chemistry, Institute of Nuclear Sciences ‘‘Vinča’’, University of Belgrade, Mike Petrovića Alasa 12-14, Belgrade, Serbia. E-mail: tina@vinca.rs, marijanapetkovic@vinca.rs, bojanad@vinca.rs; Fax: +381 11 24 7207; Tel: +381 11 3408692 ...
    ... 2009, 131, 12193–12200. 17 W. Han Ang and P. J. Dyson, Eur. J. Inorg. Chem., 2006, 4003–4018. 18 X. Sun, C.-N. Tsang and H. Sun, Metallomics, 2009, 1, 25. 19 P. Heffeter, K. Böck, B. Atil, M. A. Reza Hoda, W. Körner, C. Bartel, U. Jungwirth, B. K. Keppler, M. Micksche, W. Berger and G. Koellensperger ...
    ... Pharm. Sci., 2008, 34, 140–148. 48 G. Speelmans, W. H. H. M. Sips, R. J. H. Grisel, R. W. H. M. Staffhorst, A. M. J. Fichtinger-Schepman, J. Reedijk and B. de Kruijff, Biochim. Biophys. Acta, 1996, 1283, 60–66. 49 J. P. Li, T.-M. Chang, D. Wagner and W. Y. Chey, Am. J. Physiol. Gastrointest. Liver Physiol ...

  • Analiza parametara bušenja i miniranja na površinskom kopu „Čokoće“ - Novi Popovacu softverskom paketu O-Pitblast

    Aleksandar Đorđević (2024)
    Bušenje i miniranje predstavlja prvu fazu u otkopavanju čvrstih mineralnih sirovina, kako u podzemnoj tako i u površinskoj eksploataciji.Bušenjem i miniranjem vrši se njihovo odvajanje iz masiva i drobljenje na komade neophodne krupnoće.Uprkos razvijenoj mehanizaciji, praktično jedini efikasni postupak otkopavanja čvrstih stenskih masiva zasnovan je na primeni eksploziva.Ležište krečnjaka “Čokoće” kao i cementara “Moravacem” nalaze se u Popovcu kod Paraćina u centralnom delu Srbije. Preduzeće datira još iz davne 1928.godine, koje je tada, u improvizovanim pećima, peklo i proizvodilo kreč.Od 2015. ...
    PK „Čokoće“, moravacem, krečnjak, eksploatacija, miniranje, bušenje, O-pitblast
    ... otpora (m) D- – prečnik eksplozivnog punjenja D = 80 mm, (0,080 m — srednji prečnik) re, Is— gustina eksploziva ı stene 1,2)3 W = 37,8 · 0,08 · {Š} W = 2,8m Ili D W = 12 · De-{z-—e+ 1,5} Ps Wr = 2,78m Iz prethodno dobijenih rezultata dobili smo da se LNO dobijena empirijskim formulama ...
    ... 1,2 U zapadnoj literaturi koristi se: W = 37,8 · M, · {&}1/3 Ps gde je: Wpr— prosečna vrednost otpora (m) D – prečnik eksplozivnog punjenja D = 100 mm, (0,10 m – srednji prečnik) re, Is— gustina eksploziva ı stene 1/3 W = 37,8 · 0,10 · {Š} W =3,0m ili 40 Iz prethodno dobijenih ...
    ... specifične potrošnje, kao funkcija prečnika eksplozivnog punjenja itd. Određivanje otpora kao funkcija prečnika eksplozivnog punjenja: W=k D. |Pe -Ri | 0 W =3,3m gde je: k — konstanta, za većinu stena k = 0,8 D- = prečnik eksplozivnog punjenja (0,080 m) P. = pritisak eksplozije eksploziva ...