Претрага
763 items
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Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)
This paper presents the first data on the organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in the East Herzegovina region of the External Dinarides. Representative, organic-rich samples from outcropping sedimentary rocks of different ages in the area (Triassic to Neogene) were selected and analysed. The organic matter was studied by Rock-Eval pyrolysis and under the microscope in reflected non-polarized light and incident blue light. The results obtained show the presence of different types of organic ...... dynamics. Paleogeography, Palaeoclimatology, Paleoecology, 220: 333–360. Vujisić, T., 1975. Osnovna geološka karta SFRJ 1:100000. Tumač za list Nikšić K 34−38. Institut za geološka istraživanja, Sarajevo, Savezni geološki zavod, Beograd, 53 pp. [In Serbo-Croatian.] Welte, D. H., 1989. �e changing ...
... greatly benefitted from critical remarks by the reviewers George Siavalas and Bosko Vukovié. 12 N. ALEKSIĆ Et Al. REFERENCES Bechtel, A., Oberauer, K., Kostić, A., Gratzer, R., Milisavljević, V., Aleksić, N., Stojanović, K., Groß, D. & Sachsenhofer, R. F., 2018. Depositional environment and hydrocarbon ...
... based on an integrated study of surface and subsurface data. AAPG Bulletin, 96: 2065–2089. 12 N. ALEKSIC ET AL. REFERENCES Bechtel, A., Oberauer, K., Kosti¢, A., Gratzer, R., Milisavljevi¢, V., Aleksi¢, N., Stojanovic, K., Gro’, D. & Sachsenhofer, R. F, 2018. Depositional environment and hydrocarbon ...Nikoleta Aleksić, Aleksandar Kostić, Miloš Radonjić. "Composition of organic matter and thermal maturity of Mesozoic and Cenozoic sedimentary rocks in East Herzegovina (External Dinarides, Bosnia and Herzegovina)" in Annales Societatis Geologorum Poloniae (2021). https://doi.org/10.14241/asgp.2021.16
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Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije
Branko M. Petrović (2016-07-12)Rotorni bageri su mašine koje se u današnje vreme najviše primenjuju uprocesu masovne eksploatacije uglja zahvaljujući, pre svega, nizu tehničkoeksploatacionihprednosti u odnosu na druge vrste bagera. Raznovrsnirudarsko-tehnički zahtevi otkopavanja doprineli su razvoju nekoliko tipova ovihmašina, tako da svaki od njih ima svoje prednosti i nedostatke u odnosu nadrugi tip.Predmet istraživanja u disertaciji odnosi se na izbor optimalnekonstrukcije strele bagera i njene usaglašenosti sa uslovima radne sredine kojiće vladati na površinskim kopovima lignita Srbije, imajući u vidu složene usloveeksploatacije (velika ...površinski kop, parametri bloka, kapacitet, rotorni bager, strelabagera, geomehanika, stabilnost kosina, ekonomija... eksploatacije, prikazali su dva slučaja, i to: prvi slučaj se odnosi na P.K. TAMNAVA ZAPAD – RB KOLUBARA, a drugi na površinski kop boksita ZAGRAD – Nikšić. Materijal koji se otkopava, bilo da je reč o mekom tlu ili pak steni, pod dejstvom spoljnih sila se deformiše a toj deformaciji suprotstavljaju ...
... kod proslojka ugljevite gline), uključujući i deformacije izazvane sniženjem nivoa podzemnih voda. Otvaranje i razrada površinskog kopa ZAGRAD – Nikšić izvršeni su po projektu koji je koristio geomehaničke parametre morenskog materijala dobijene u fazi geoloških istraživanja bušenjem. Na osnovu ...
... dužine strele bagera Ls=35 m, Ls=36 m i Ls=37 m d u ž i n a s t r e l e b a g e r a (m) 35 36 37 Red. br. O p i s Prosečno godišnje U k u p n o Prosečno godišnje U k u p n o Prosečno godišnje U k u p n o I TROŠKOVI POSLOVANJA (€) 3.841438 76.828.762 3.880.868 77 ...Branko M. Petrović. "Optimizacija dužine strele rotornih bagera u funkciji stabilnosti kosina i efektivnosti rada na površinskim kopovima lignita Srbije" in Универзитет у Београду, Универзитет у Београду, Рударско-геолошки факултет (2016-07-12)
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Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali
Darko Božović, Vladimir Simić (2023)Darko Božović, Vladimir Simić. "Arhitektonsko-građevinski kamen Crne Gore, stanje i potencijali" in Geološki glasnik (2023)
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Named Entity Recognition for Distant Reading in ELTeC
Francesca Frontini, Carmen Brando, Joanna Byszuk, Ioana Galleron, Diana Santos, Ranka Stanković (2020)Akcija COST „Udaljeno čitanje za evropsku književnu istoriju“, koja je počela 2017. godine, ima među svojim glavnim ciljevima stvaranje višejezične zbirke evropskih književnih tekstova (ELTeC) otvorenog koda. U ovom radu predstavljamo rad koji je obavljen na ručnom označavanju selekcije ELTeC kolekcije za imenovane entitete, kao i na proceni postojećih alata za prepoznavanje imenovanih entiteta u pogledu njihove sposobnosti da automatski urade takve anotacije. U poslednjem paragrafu se razmatraju zajedničke tačke između ove inicijative i CLARIN-a.... -s y n ta c t ic a n d d ire c t sp e e c h a n n o ta tio n . A t th is m o m e n t, W G 2 c a r r ie s o u t th e N E a n n o ta t io n fo r a s u b s e t o f la n g u a g e s : C z e c h (c z e ) , G e rm a n (d e u ), E n g lis h (e n g ) , F re n c h ( f ra ) , H u n g a r ...
... French: T h e m a n u a l c o rp u s c o n ta in s m a n y P E R S a n d fe w e r L O C a n n o ta t io n s . H o w e v e r , s p a C y - f ra a n n o ta te s to o m a n y L O C h e n c e th e lo w p re c is io n fo r th is ca te g o ry , a n d S E M -f ra a n n o ta te s to o ...
... u to m atic C o n te n t E x trac tio n ) E n g lish A n n o ta tio n G u id e lin e s fo r E n tit ie s , V ers io n 6 .6 . T ech- n ic a l rep o r t, L in g u is t ic D a ta C o n so r tiu m . h ttp s : //w w w .ld c .u p e n n .e d u /s ite s /w w w .ld c .u p e n n .e d u /f ile s /en ...Francesca Frontini, Carmen Brando, Joanna Byszuk, Ioana Galleron, Diana Santos, Ranka Stanković. "Named Entity Recognition for Distant Reading in ELTeC" in CLARIN Annual Conference 2020, Oct 2020, Virtual Event, France, CLARIN (2020)
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The Newton method for solving nonlinear equations based on aggregation operators
Nebojša M. Ralević, Dejan Ćebić (2019)Nebojša M. Ralević, Dejan Ćebić. "The Newton method for solving nonlinear equations based on aggregation operators" in XLVI International Symposium on Operational Research SYM-OP-IS, Kladovo, 15-18.9.2019, Универзитет у Београду (2019)
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A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice
Ventilation system analysis is a complex process based on the calculation and analysis of numerous parameters. These problems can be successfully solved by the SimVent numerical package, but a full understanding and use of the obtained results require the involvement of an experienced specialist in the ventilation field. The solution was found in the creation of a hybrid system INVENTS, whose knowledge base represents a formalization of the expert knowledge in the mine ventilation field. In this paper, we ...... w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 374 N. Lilić, I. Obradović & R. Stanković 0 .0 1 7 2 N s /m2 8 0 .9 6 8 1 N s /m 2 8 0 .2 2 6 6 N s /m 2 8 6 .8 5 ...
... 361 M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 362 N. Lilić, I. Obradović & R. ...
... networks, and M in . R es . E n g . 2 0 0 2 .1 1 :3 6 1 -3 8 2 . D o w n lo ad ed f ro m w w w .w o rl d sc ie n ti fi c. co m b y U N IV E R S IT Y O F A L B E R T A o n 0 4 /2 6 /1 5 . F o r p er so n al u se o n ly . 364 N. Lilić, I. Obradović & R. ...Nikola Lilić, Ivan Obradović, Ranka Stanković. "A Knowledge-Based Approach to Mine Ventilation Planning in Yugoslav Mining Practice" in Mineral Resources Engineering 11 no. 4, Imperial College Press (2002): 361-382. https://doi.org/10.1142/S0950609802001014
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The external aggregation Newton's method for solving nonlinear equations and applications
Marija Paunović, Dejan Ćebić, Nebojša Ralević. "The external aggregation Newton's method for solving nonlinear equations and applications" in The University Thought - Publication in Natural Sciences, Centre for Evaluation in Education and Science (CEON/CEES) (2020). https://doi.org/10.5937/univtho10-24982
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Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia
Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović (2020)Gorica Veselinović, Dragana Životić, Kristina Penezić, Milica Kašanin-Grubin, Nevenka Mijatović, Jovana Malbašić, Aleksandra Šajnović. "Geochemical characterization of sediments from the archaeological site Vinča – Belo Brdo, Serbia" in CATENA, Elsevier BV (2020). https://doi.org/10.1016/j.catena.2020.104914
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Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika
... od 2016. do 2019. go- dine u široj okolini Trstenika, a u okviru 31 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e sprovođenja terenske nastave, geofizič- ka ispitivanja su vršena na pet ...
... Zahvaljujući magnetometrij- skim ispitivanjima područja Stragari, 33 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e ukupne površine oko 2,5 ha, izvrše- no je lociranje ostataka materijalnih ...
... od strane meštana (Стокић и др., 2017; Анђелковић и др. , 2019) 35 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e rovatno iz mlađeg perioda, pri čemu su nađene i kosti odraslog čoveka ...Dragana Đurić, Jelena Vukčević, Dejan Vučković, Ivana Vasiljević, Vesna Cvetkov . "Terenska nastava iz geofizike: Arheološki lokaliteti na području Trstenika" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: zbornik radova / Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, 28.02.2020., Beograd, Beograd : Srpsko arheološko društvo (2020)
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Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta
Vesna Cvetkov (2020)... tim tačnije definisanje potencijalnih zona od interesa za arheo- 15 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e loška istraživanja i lociranje arheoloških objekata. Sam izbor metode ...
... da se ponašaju kao mali magneti i orijentišu paralelno sa MPZ. 17 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e Drugi bitan i najčešće razma- tran parametar kod magnetometrijskih i ...
... arheoloških objekata od opeke pri različi- tim vrednostima inklinacije 19 A k t u e l n a i n t e rd i s c p l i n a r n a i s t ra ž i v a n j a t e h n o l o g i j e u a r h e o l o g i j i j u g o i s t o č n e E v ro p e pomeren u odnosu na centar uzročnika (Slika 1). Kako bi oblik magnetne ...Vesna Cvetkov. "Značaj geografske širine za lociranje uzročnika magnetnih anomalija kod prospekcije arheoloških lokaliteta" in Aktuelna interdisciplinarana istraživanja tehnologije u arheologiji jugoistočne Evrope: Zbornik radova, Prvi skup Sekcije za arheometriju, arheotehnologiju, geoarheologiju i eksperimentalnu arheologiju Srpskog arheološkog društva, Beograd, 28.02.2020. , Beograd : Srpsko arheološko društvo (2020)
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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 polynomialsDragan Stankov. "The number of unimodular roots of some reciprocal polynomials" in Cmptes rendus mathematique (2020). https://doi.org/10.5802/crmath.28
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Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit
... (8) is reduced to: 1-n- c 1 -n 1 -n s Rn-k R- Rk-R sR k , (9) namely to: 1-n- c 1 -n 1 -n s R-n R- R-R sR , R1 < Rc < Rs. (10) No. 3, 2015 Mining & Metallurgy Engineering Bor 56 From the equation (10) the following is obtained: 1 1 1 1 n n s n s c RR RRn R , R1 ...
... (5), for- mula (8) se svodi na: 1-n- c 1 -n 1 -n s Rn-k R- Rk-R sR k , (9) tj. na: 1-n- c 1 -n 1 -n s R-n R- R-R sR , R1 < Rc < Rs. (10) Broj 3, 2015. Mining & Metallurgy Engineering Bor 66 Iz jednačine (10) dobijamo: 1 1 1 1 n n s n s c RR RRn R , R1 < Rc < Rs. ...
... .., N, are used from the table of experimental data, so that: n 111 RvK n 222 RvK ... n NNN RvK , whereby, for parameter K, the arithmetic mean is used, namely: N KKK K N...21 . (19) In this way, the model for solving the rock mass oscillation law is determined, taking: n RKv ...Suzana Lutovac, Nebojša Vidanović, Čedomir Beljić, Zoran Gligorić. "Soil oscillation law parameter determination with the application of Lagrange’s theorem at “Kovilovača“ open pit" in Mining and Metallurgy Engineering Bor, Bor : Mining and Metallurgy Institute Bor (2015). https://doi.org/10.5937/MMEB1503053L
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A necessary and sufficient condition for an algebraic integer to be a Salem number
Dragan Stankov (2019)We present a necessary and sufficient condition for a root greater than unity of a monic reciprocal polynomial of an even degree at least four, with integer coefficients, to be a Salem number. This condition requires that the minimal polynomial of some power of the algebraic integer has a linear coefficient that is relatively large. We also determine the probability that an arbitrary power of a Salem number, of certain small degrees, satisfies this condition.Algebraic integer, the house of algebraic integer, maximal modulus, reciprocal polynomial, primitive polynomial, Schinzel-Zassenhaus conjecture, Mahler measure, method of least squares, cyclotomic polynomialsDragan Stankov. "A necessary and sufficient condition for an algebraic integer to be a Salem number" in Journal de theorie des nombres de Bordeaux (2019). https://doi.org/10.5802/jtnb.1076
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The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments
Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević (2013)The objective of the study was to determine the origin and type of organic matter (OM) of the Tisza recent sediments along the distance of 153 km through the territory of Serbia. For this purpose group organic-geochemical parameters and biomarker compositions were used. All samples contain approximately same amount of OM, which was deposited under uniform, slightly reducing conditions. Based on the distribution of n-alkanes, the origin and type of OM could not be precisely estimated. However, n-alkane patterns ...... n-C20)+Σodd(n-C17–n-C21) / Σeven(n-C18–n-C22)]; cCPI deter- mined for distribution of n-alkanes C23–C35 (mass chromatogram m/z 71), CPI (C23–C35) = 1/2 [Σodd(n-C23– –n-C35) / Σeven(n-C22–n-C34)+Σodd(n-C23–n-C35) / Σeven(n-C24–n-C36)]; dPr/Ph = pristane/phytane Tricyclic and pentacyclic terpanes. The ...
... n of n-alkanes C16–C35 (mass chromatogram m/z 71), CPI (C16–C35) = 1/2 [Σodd(n-C17–n-C35) / Σeven(n-C16–n-C34) + Σodd(n-C17–n-C35) / Σeven(n-C18–n- –C36)]; bCPI determined for the distribution of n-alkanes C16–C22 (mass chromatogram m/z 71), CPI (C16– –C22) = 1/2 [Σodd(n-C17–n-C21) / Σeven(n-C16– ...
... such as gaso- line and diesel, have different n-alkane distributions, which range from n-C6 to n-C12, and n-C12 to n-C25, respectively. Moreover, these derivatives do not con- tain polycyclic biomarkers of the sterane and terpane types.7,8 Similarly to n-alkanes, the distributions of polycyclic alkanes ...Snežana Štrbac, Gordana Gajica, Aleksandra Šajnović, Nebojša Vasić, Ksenija Stojanović, Branimir Jovančićević. "The use of biological markers in determination of origin and type of organic matter in the Tisza river sediments" in Journal of Serbian Chemical Society, Beograd : Srpsko hemijsko društvo (2013). https://doi.org/10.2298/JSC130614087S
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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 polynomialsDragan Stankov. "On the distribution modulo 1 of the sum of powers of a Salem number" in Comptes rendus Mathematique (2016). https://doi.org/10.1016/j.crma.2016.03.012
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Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine
Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović (2019)Availability is one of the most used terms in maintainability engineering. This concept is used to denote: The quality of service of an engineering system, i.e., machines, weak points’ analysis, asset management, as well as making decisions in the process of life cycle management. Availability is an overall indicator and contains partial indicators that are oriented towards reliability, maintenance, and logistical support. Availability presents a variable value and changes in time and space. Usually, availability is shown as the ...... example: λ1 = (a11·WRB1−N)+(a12·WMB1−N)+(a13·WSB1−N) WRB1−N = (1·0.1630)+(0.5·0.2968)+(0.33·0.5401) 0.1630 = 3.01492 λ2 = (a21·WRB1−N)+(a22·WMB1−N)+(a23·WSB1−N) WMB1−N = (2·0.1630)+(1·0.2968)+(0.5·0.5401) 0.2968 = 3.00825 λ3 = (a31·WRB1−N)+(a32·WMB1−N)+(a33·WSB1−N) WSB1−N = (3·0.1630)+(2·0.2968)+(1·0 ...
... specific example: _ (a11-Wrpi-n)+(412-Wopi-n)+(413-Wspi-n) __ (1-0.1630)+(0.5-0.2968) + (0.33-0.5401) __ A= = = 3.01492 Wrsi-N 0.1630 -Wrepi- -W; _ -Weopi— 2-0.1630 1-0.2968 0.5-0.5401 A> = (421:Wrpi-n)+(422-Wopi-n) +(423-Wsp1-N) ( )+( )+( ) 3.00825 Wupi_n 0.2968 -Wrpi- -W; _ -Wopi- 3-0.1630 2-0.2968 1-0 ...
... ranking of the R, M, S indicators is given for the new (B1-N, B2-N, and B3-N have the same ranking) and old machines. Table 6. The ranking of partial indicators of the availability of new and old machines. AHP Preferences B1-N (B2-N, B3-N) B1-O B2-O B3-O R M S R M S R M S R M S R 1 1/2 1/3 1 1 1 ...Stevan Đenadić, Dragan Ignjatović, Miloš Tanasijević, Uglješa Bugarić, Ivan Janković, Tomislav Šubaranović. "Development of the Availability Concept by Using Fuzzy Theory with AHP Correction, a Case Study: Bulldozers in the Open-Pit Lignite Mine" in Energies, MDPI AG (2019). https://doi.org/10.3390/en12214044
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DNA/BSA interactions and cytotoxic studies of tetradentate N,N,O,O Schiff base copper(II) complexes
Aleksandar Mijatović, Angelina Caković, Aleksandar Lolić, Snezana Sretenović, Marko Živanović, Dragana Seklić, Jovana Bogojeski, Biljana Petrović (2023)Three Schiff base Cu(II) complexes, (N,N’-bis(acetylacetone)propylenediimine)copper(II) complex, [Cu(acac2pn)] (1), (N,N'-bis-(benzoylacetone)propylenediimine)copper(II) complex, [Cu(phacac2pn)] (2) and (N,N’-bis-(trifluoroacetylacetone)propylenediimine)copper(II) complex, [Cu(tfacac2pn)] (3), were used to investigate the interactions with calf thymus DNA (ct-DNA) and bovine serum albumin (BSA) using the electronic absorption and spectroscopic fluorescence methods. UV-Vis absorption studies showed that studied complexes interact with DNA molecule and exhibit moderate binding affinity. Fluorescence studies of complexes 1-3 also showed a possibility for DNA intercalation as well as a relatively high binding ability ...Aleksandar Mijatović, Angelina Caković, Aleksandar Lolić, Snezana Sretenović, Marko Živanović, Dragana Seklić, Jovana Bogojeski, Biljana Petrović. "DNA/BSA interactions and cytotoxic studies of tetradentate N,N,O,O Schiff base copper(II) complexes" in Journal of the Serbian Chemical Society (2023). https://doi.org/10.2298/JSC230614063M
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Some models for determination of parameters of the soil oscillation law during blasting operations
... Equation (4) into Equation (3), we obtain: v “ Kv ¨ ˝ 3 b 3¨Q 4¨π r ˛ ‚ n “ Kv ¨ ˜ 3 c 3 4 ¨ π ¸n ¨ ˆ 3 ? Q r ˙n “ Kv ¨ K1 ¨ ˆ r 3 ? Q ˙´n “ K ¨ ˆ r 3 ? Q ˙´n “ K ¨ R´n (5) where as: ˜ 3 c 3 4 ¨ π ¸n “ K1; Kv “ K K1 ; r 3 ? Q “ R (6) where: R—reduced distance is the distance ...
... marked ´n, meaning that: ∆v v ∆R R « ´n (7) Thereby it can be considered that: lim∆RÑ0 ∆v v ∆R R “ ´n, which means: dv v dR R “ ´n (8) Equation (8) can be written in the form: dv v “ ´n ¨ dR R , where by integration is obtained: ż dv v “ ´n ¨ ż dR R , namely: logv “ logR´n ` logC (9) ...
... (1) we obtain the equation: v “ v1 ¨ ˆ R1 R ˙n (14) From Equation (14), for R = R1 there is obtained v = v1 for any n, in our case n > 0. For R = Ri, i = 2, 3, ..., N, from Equation (14), we can take that: vi “ v1 ¨ ´ R1 Ri ¯n , i = 2, 3, ..., N, from there the relation is obtained: v1 ¨ v2 ...Suzana Lutovac, Dragan Medenica, Branko Gluščević, Rade Tokalić, Čedomir Beljić. "Some models for determination of parameters of the soil oscillation law during blasting operations" in Energies, Basel, Switzerland : MDPI (2018). https://doi.org/10.3390/en9080617
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Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine
... obtained: 1 1 2 1 1 2 ... ... n N N N N R v v v v R R R (10) From the relation (10), we can determine parameter n. By logharithm operation of relation (10) we obtain: 1 21 1 2 1 ... log log ... N N N N v v vR n R R R v ...
... .. N N N N v v v v n R R R R (11) By the replacement of the value for the parameter n in the equation (11), found in this way, we obtain the relation for the oscillation velocity of rock mass in the monitored environment: 1 1 n R v ...
... obtain the equation: 1 1 n R v v R (9) From the equation (9), for R = R1 there is obtained v = v1 for any n, in our case n > 0. For R = R1, i = 2, 3, ..., N, from the equation (9), we can take that: 1 1 2,3,..., n i i R v v i N R ...Suzana Lutovac, Sanja Bajić, Marina Ravilić, Radmila Gaćina. "Parameter determination of soil oscillation law using quotient of the relative growth increments of oscillation velocity and reduced distances at “Nepričava“ open pit mine" in Underground Mining Engineering, Belgrade : University of Belgrade, Faculty of Mining and Geology (2015). https://doi.org/10.5937/podrad1526009L
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Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)
Vladimir Kovačević (2024)Za potrebe izrade završnog rada na četvrtoj godini Rudarsko-geološkog fakulteta, studijskog programa Geotehnika, pod mentorstvom doc. dr Zorana Berisavljevića, odabrana je tema „Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad)“. Osnovni metodološki pristup koji je korišćen za rešavanje postavljenog problema predstavlja kabinetsko istraživanje dostupne dokumentacije, analiza i interpretacija rezultata izvedenih geoloških,geotehničkih i geomehaničkih istraživanja. Predstavljene su osnovne informacije,karakteristike i upotreba prednapregnutih geotehničkih sidara.Analiziran je tok testiranja granične nosivosti prednapregnutih sidara. Na osnovu izvršenih geotehničkih istraživanja terena i ispitivanja ...... M O H O N V 3O O N L L S S L L A L I O V d V O ĐONIMHVHH - Q O M I O H O N V Đ N L L S M . L / L I S O A I S O N M N Q I N V N M S O I S M L - V I V G I S f N V A L L I d S I I W O N T O H . L N O X O X I N S I d V Z Đ N I S S H N . L S H N H G G N V gauMn,LOniLLS ...
... A Y O H O N V O O N L L S I L L A.LIOVdV' O Đ N I D H V H H - Q 1 O D 0 i 1 O H O N V Đ N L L S ? L L / L L S O A I S O N M N N O I N V ? H D .LSŠLL – V M V G I S O f N V A L L I d S I T W O N T O H . L N O N M O M I N S I d V Z ĐNISSHNH.LSHNHd G N V SMMn.LOnbiLLS ...
... + i i = + - + ++ o 5 ( N O d d S r N a Z n O Z I - V1IS I N W H O V T I G ĐONISSiHHLSSHHd G N V g S d H n i O n H 1 I S HO34 H 3 1 N 3 O - S r N v V Z d H d v N G d b H d | 3 r I O 5 n H . L S N O y N VZ H V 1 L N 3 O B8B8B8BPEB8BSBBRB wl {v= CENTAR ...Vladimir Kovačević. Rezultati probnog ispitivanja geotehničkih prenapregnutih sidara u Užicu (Stari grad), 2024