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Artykuły w czasopismach na temat "Mernine"
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Vučić, Damjan. "PROJEKTOVANJE MERNIH KONDICIONERA". Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 35, nr 11 (4.11.2020): 1986–89. http://dx.doi.org/10.24867/10be32vucic.
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Merni kondicioneri su veoma važan deo mernih sistema jer kvalitet i tačnost merenja veoma zavise od kvaliteta realizacije tih ulaznih mernih elektronskih sklopova. Tema ovog rada je teoretska analiza tehnika relizacije mernih kondicionera, a zatim projektovanje operacionog pojačavača kao osnovnog gradivnog bloka mernih kondicionera. Kolo je projektvano i simulirano korišćenjem programskog paketa Cadance. Provereno je da projektovano kolo zadovoljava vrednosti propisane specifikacijom za ekstremne vrednosti parametara okoline kao i za velike varijacije prilikom procesiranja kola na silikonu.
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Ranisavljev, Miloš, i Branko Štrbac. "OPTIMIZACIJA PROCESA MERENJA NA KOORDINATNOJ MERNOJ MAŠINI PRIMENOM TAGUČI DIZAJNA EKSPERIMENTA". Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 37, nr 01 (3.01.2022): 4–7. http://dx.doi.org/10.24867/16am03ranisavljev.
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Iako ih karakterišu visoke metrološke performanse, zbog složenosti procesa merenja na koordinatnim mernim mašinama, postoji mnogo faktora koji utiču na kvalitet rezultata merenja. Cilj ove studije jeste, primenom Taguči dizajna eksperimenta koji analizira glavne uticajne faktore na kvalitet rezultata merenja, optimizovati proces merenja na mernim mašinama tako da se dobiju najbolje performanse sa aspekta tačnosti i merne nesigurnosti. Studija slučaja je sprovedena na toleranciji ravnosti i merena je ravnost na četiri radna predmeta čije greške oblika ravne površine se značajno razlikuju.
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Lončar, Milan, i Branko Štrbac. "ANALIZA TAČNOSTI KOORDINATNIH MERNIH SISTEMA PRI ODREĐIVANJU GREŠKE RAVNOSTI". Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 35, nr 01 (15.12.2019): 1–4. http://dx.doi.org/10.24867/06am00loncar.
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Razvojem proizvodnje ka složenim radnim predmetima sa uskim tolerancijama izrade dovelo je koordinatne merne sisteme (KMS) na lidersku poziciju u procesima verifikacije. Postoji niz različitih KMS koje se danas koriste a karakteriše ih način uzorkovanja, tačnost, brzina, fleksibilnost. Mnoge KMS nemaju utvrđene procedure za proveru tačnosti. Ova rad je imao za cilj da utvrdi tačnost različit KMS na primeru merenja etalona ravnosti sa poznatim kalibracionim vrednostima. Rezultati su pokazali visoke performanse koordinatnih mernih mašina za obe vrste senzora a loše performanse za industrijski CT.
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Despotović, Željko, Marko Tajdić i Jovan Kon. "Hibridno napajanje telekomunikacione i merne opreme daljinskih mernih stanica u sistemima zaštite od poplava". Energija, ekonomija, ekologija 22, nr 1-2 (2020): 102–11. http://dx.doi.org/10.46793/eee20-1-2.102d.
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The paper will present the implementation of a hybrid power supply for telecommunication and corresponding measuring equipment of remote measuring stations, which are an integral part of the flood protection system. Solar power is the primary energy source during the day, while in night conditions it is actually used as a distribution network (which also supplies street lighting). The power system is implemented with two controlled MPPT chargers (mains and solar), 12V / 110Ah battery bank and associated monitoring system. The paper will present key experimental results obtained during the release of a concrete realized measuring station and associated telecommunication equipment, on the Ub River, Ub Municipality.
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Simonović, Milan, Dragan Lazarević, Marko Simonović i Bogdan Nedić. "Comparison of measurement using optical measuring systems and coordinate measuring machine". IMK-14 - Istrazivanje i razvoj 26, nr 2 (2020): 35–41. http://dx.doi.org/10.5937/imk2002035s.
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The paper presents the results of measuring the gearbox housing with the ATOS optical measuring system, the TRITOP system and the "TESA micro-hit 4-5-4" coordinate measuring machine. The aim of the study was to determine the differences in modern measuring systems and whether these differences affect the final measurement result when controlling parts of a complex configuration. At the beginning of the paper, the way of functioning of the used measuring systems and the results of research in this area are described. GOM Inspect software used for the ATOS and TRITOP measuring systems, while PC DMIS software used for the coordinate measuring machine. The analysis of the obtained results showed that there are significant differences in the measurement results and that the measuring systems used can't be applied with the same success to the measurement of parts of complex configuration such as the gearbox housing.
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Fajgelj, Stanislav, i Bojan Janičić. "KakaoKTT: SPSS makro za ajtem analizu - klasični model". Primenjena psihologija 1, nr 3-4 (26.12.2008): 207–22. http://dx.doi.org/10.19090/pp.2008.3-4.207-222.
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U radu je prikazan KAKAOKTT, jedan od programa za ajtem analizu testa iz skupa KAKAO. Skup KAKAO je namenjen ajtem analizi mernih instrumenata iz oblasti nauka o ponašanju. Programi su izrađeni u Matrix jeziku, kao makroi u okviru statističkog paketa SPSS. To su makro programi otvorenog koda (open source), besplatni su, za njihovo odvijanje potreban je statistički paket SPSS i vrlo su jednostavni za upotrebu. Makro KakaoKTT je namenjen ajtem analizi zasnovanoj na klasičnoj testnoj teoriji. Sadrži probrani skup mernih karakteristika ajtema i testa, kao i kratak opis svakog prikazanog koeficijenta. Osim klasičnih poka-zatelja obuhvaćeni su i pokazatelji mernih svojstava bazirani na Gutma-novom mernom modelu. KakaoKTT prihvata dihotomne i polihotomne ajteme koji su skorovani u istom smeru.
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Spasić, Aleksandra, i Luka Strezoski. "VERIFIKACIJA PRORAČUNA ZA DETEKCIJU I IDENTIFIKACIJU LOŠIH TELEMETRISANIH MERENJA U PRENOSNO-PROIZVODNIM MREŽAMA". Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 38, nr 09 (5.09.2023): 1109–12. http://dx.doi.org/10.24867/24be05spasic.
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U radu su opisane teorijske osnove proračuna statičke estimacije stanja, zatim detekcije i identifikacije loših merenja za prenosno-proizvodne mreže. Urađena je verifikacija proračuna na mreži sa šest čvorova. Konačan cilj rada je da se detektuju sva loša merenja koja se javljaju usled starenja klase tačnosti mernih uređaja, pojave šumova prilikom prenosa mernih signala u dispečerski centar itd.
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Önal, H. Inci. "Archives as Builders of Civic Partnerships". Atlanti 26, nr 2 (25.10.2016): 181–88. http://dx.doi.org/10.33700/2670-451x.26.2.181-188(2016).
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Archives and archivists can participate in rekindling civic engagement from many venues. The implementation of a modern civil registration service is at the heart of providing better archival public services. The modernisation of civil registration system in Turkey culminated in 2000 with the introduction of the Central Civil Registration System or MERNIS, as is known by its abbreviations in Turkish, set up after long and arduous work. This paper describes the process of establishing, extending, and improving MERNIS services through national and international cooperation and collaboration. The focus of this paper provides examples of using archives by the public agencies accessing MERNIS are as follows: Economic and financial; planning and investment; security; military service; health services; education; social security; electoral registers; justice. As a result, it was found out that access to central civil registration system and archival databases to citizens eager to find and use vital services within their communities.
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Akbar, Aulia, i Arman Adiviani Bahari. "Kontribusi Gagasan Wahid Hasyim dan Fatimah Mernisi terhadap Rekontruksi Pendidikan Agama Islam". EDUKATIF : JURNAL ILMU PENDIDIKAN 6, nr 5 (3.08.2024): 5529–40. http://dx.doi.org/10.31004/edukatif.v6i5.7300.
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Berdasarkan konteks globalisasi, sistem pendidikan dituntut untuk melakukan permbaharuan akibat masifnya arus globalisasi yang menuntut pendidik dan peserta didik cakap dalam mengikuti perkembangan zaman. Berdasarkan latar malasah tersebut, maka tulisan ini bertujuan untuk memberikan kontribusi atas pembaharuan sistem pendidikan agama Islam berlandaskan pada gagasan pemikiran Wahid Hasyim dan Fatimah Mernisi guna memenuhi kebutuhan masa depan. Adapun penelitian ini menggunakan metode library research dengan pengumpulan data melalui analisis dan telaah jurnal, buku, artikel, maupun dokumen yang relevan dengan topik yang diangkat. Hasil dari penelitian ini menunjukan bahwa implikasi dari gagasan pemikiran Wahid Hasyim dan Fatimah Mernisi mengenai rekontruksi Pendidikan Agama Islam ialah perlunya interdisipliner ilmu pengetahuan yang melibatkan integrasi berbagai disiplin ilmu, guna memperkaya pemahaman dan memperoleh keilmuan yang lebih komprehensif. Dengan interdisiplin ilmu pengetahuan, guru-guru dituntut agar dapat memadukan materi Pendidikan Agama Islam dengan ilmu-ilmu lain. Hal ini ditujukan untuk perkembangan pengetahuan dan nalar peserta didik semakin holistic dan komprehensif serta cakap dalam menjawab perkembangan zaman
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Narić, Marko. "ISTRAŽIVANJE UTICAJA LOKALNOG OTPORA POSTAVLJENOG ISPRED MERNE BLENDE NA STRUJNE PARAMETRE". Zbornik radova Fakulteta tehničkih nauka u Novom Sadu 34, nr 09 (16.08.2019): 1503–6. http://dx.doi.org/10.24867/04am04naric.
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Predmet rada bila je merna blenda, uređaj za merenje protoka fluida. Cilj rada bio je da se istraži uticaj lokalnog otpora postavljenog ispred merne blende na sledeće strujne parametre: razliku pritiska, pad pritiska, gubitak strujne snage i koeficijent protoka. Razmatrana je merna blenda sa jednim (SHO) i merna blenda sa više otvora (MHO). Analiza je urađena primenom računarske dinamike fluida. Zaključeno je da lokalni otpor postavljen ispred merne blende utiče na navedene strujne parametre.
Rozprawy doktorskie na temat "Mernine"
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Dragana, Naumović Vuković. "Prilog savremenom etaloniranju strujnih mernih transformatora". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107383&source=NDLTD&language=en.
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U ovoj doktorskoj disertaciji prikazana je koncepcija, realizacija i potvrda nove metodejednovremenog etaloniranja strujnih mernih transformatora sa dve različite merneaparature. Pregledom stručne literature ne postoji podatak da je ova metoda ranijeprimenjivana. U disertaciji su prikazane različite merne metode za ispitivanje ietaloniranje mernih transformatora koje imaju primenu u savremenoj praksi i kojepodrazumevaju i različite merne mogućnosti. Takođe je i ekperimentalno potvrđenojednovremeno ispitivanje i etaloniranje strujnih mernih transformatora sa nekolikomernih aparatura koje su zasnovane na različitim metodama. Sprovedna istraživanja ieksperimentalni rezultati pokazuju i potvrđuju niz prednosti ovakvog načinaetaloniranja. Detaljna analiza komponenti merne nesigurnosti pokazala je da seprimenom ove metode postiže poboljšanje merne nesigurnost etaloniranja za skoro redveličine u odnosu na klasično pojedinačno etaloniranje sa dve različite merneaparature. Analiza uticajnih veličina na mernu nesigurnost pokazuje da se po ovoj novojmetodi etaloniranja eliminiše niz komponenti od kojih su najznačajnije: uticajnejednakosti referentnih struja i ispitnog opterećenja. Istraživanja su takođe pokazalada jednovremena metoda osim što doprinosi podizanju tačnosti etaloniranja strujnihtransformatora, ima primenu i u etaloniranju mernih aparatura za ispitivanje tačnostimernih transformatora i interkonparaciji strujnih etalon transformatora. Krozkonkretne primere realizovane u praksi, razmotreni su i prikazani načini etaloniranjamernih aparatura za ispitivanje tačnosti ovom novom metodom. Interkomparacijom dvamerna sistema visoke klase tačnosti Nacionalnog merološkog instituta Kanade(National Research Council Canada), od kojih je jedna razvijena u ElektrotehničkomInstitutu "Nikola Tesla", pokazana je i prednost primene jednovremene metode u oblastiprimarne metrologije strujnih mernih transformatora.The dissertation presents the concept, its realisation and verification of the new methodof simultaneous comparison of the current transformers by two different measuringapparatus. It is shown by searching the literature, that this method has not been usedbefore. In this dissertation different measuring methods for testing and calibration ofcurrent transformers, with their different measuring capabilities are presented. Most ofthem have been used in recent practice. Furthermore, the experimental verification ofnew simultaneous calibration method is presented. For this reason some measuringapparatus based on different measuring methods were used. Conducted research andexperimental results confirmed a number of advantages of this calibration method.Detailed analysis of the components of the uncertainty of measurements shown thatusing simultaneous method uncertainty of measurements have been improvedcomparing to method with two individual calibration by different apparatus. In that casesome of the measuring uncertainty components can be neglected. The most significantis component caused by variation of referent current and component caused by variationof burden. The research has also showed that simultaneous method can be used forcalibration of measuring apparatus for current transformer accuracy testing and theirinter-comparisons. The ways of calibration of apparatus for current transformer accuracytesting are considered and presented, through concrete examples realized in practice.A high-accuracy comparison of two NRC (National Research Council Canada)calibration systems were carried out by new simultaneous method. One measuringsystem is developed at Electrical Engineering institute Nicola Tesla, Belgrade.Accordingly the advantage of simultaneous method applied at the primary metrology ofcurrent transformer is verified.
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Dragan, Halas. "Računarska simulacija i analiza novih oblika mernih blendi". Phd thesis, Univerzitet u Novom Sadu, Tehnološki fakultet Novi Sad, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=114280&source=NDLTD&language=en.
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U mnogim granama tehnike javljaju se problemimerenja protoka fluida. Merne blende, zbog svojihmnogih prednosti predstavljaju najzastupljenijiinstrument za merenje protoka fluida kroz cevovode. Sadruge strane njihova upotreba povećava troškove radaindustrijskih postrojenja. Jedan od ciljeva ovedoktorske disertacije bio je ispitivanje novih oblikamernih blendi u cilju uštede energije pri njihovom radu.U ovoj doktorskoj disertaciji predložen je algoritamispitivanja novih oblika mernih blendi. Takođe jekonstruisana i izrađena laboratorijska aparatura zanjihovo ispitivanje kao i diferncijalni "U" manometarza merenje malih razlika pritisaka. U okviru ovedoktorske disertacije dizajnirana su i ispitana tri novaoblika mernih blendi. Ušteda energije je postignutadizajnom koji smanjuje otpor merne blende kaoelementa cevovoda. Novi oblici mernih blendi, kao ijedna standardnog oblika koja je poslužila kaoreferentna, ispitani su prema predloženom algoritmu. Uprvom koraku merne blende su dizajnirane uprogramskom paketu Solid Works. Zatim su, premapredloženom algoritmu, ispitane pomoću računarske simulacije u programskom paketu COMSOL Multiphysics. Po dobijanju zadovoljavajućih rezultata računarske simulacije, merne blende su izrađene na 3D štampaču, FDM postupkom i ispitane na laboratorijskoj aparaturi. Rezultati laboratorijskih ispitivanja su upoređeni sa rezultatima računarske simulacije. Upoređeni rezultati računarske simulacije i laboratorijskih ispitivanja su pokazali da je računarska simulacija dobro opisivala situaciju. Rezultati laboratorijskog ispitivanja su pokazali znatan efekat uštede energije. Takođe je utvrđeno da se pomoću računarske simulacije mogu dobiti podaci na osnovu kojih se može doneti odluka da li novi oblik merne blende treba korigovati ili ima smisla pristupiti laboratorijskom ispitivanju. Algoritam ispitivanja koji je predložen u ovoj doktorskoj disertaciji se pokazao efikasnim. In many domains of technology, there are problemswith the measurement of fluid flow. Orifice plates,because of their many advantages, represent the mostcommon instrument for measuring fluid flow throughpipelines. On the other hand, their use increases theoperating cost of industrial plants. One of the goals ofthis doctoral dissertation was to test new forms oforifice plates for a reason to save energy during theirwork. An algorithm for testing new forms of orificeplates is proposed. Also, the laboratory equipment fortesting them was designed and made, as well as adifferential "U" manometer for measuring smallpressure differences. As part of this doctoraldissertation are designed and tested three new forms oforifice plates. Energy-saving was achieved by a designthat reduces the resistance of the orifice plate as anelement of the pipeline. New forms of orifice plates, as well as a standard shape, which served as a reference, were tested according to the present algorithm. In the first step, orifice plates are designed in the Solid Works software package. Then, according to the proposed algorithm, they were tested using computer simulation in COMSOL Multiphysics software package. After achieving satisfactory results of computer simulation, orifice plates are made on a 3D printer, using the FDM process and tested in the laboratory apparatus. The results of laboratory tests were compared with the results of computer simulations. Compared results of computer simulation and laboratory testing showed that computer simulation described the situation well. The results of the laboratory test showed a significant energy-saving effect. It was also found that computer simulation can obtain data that can decide whether a new form of orifice plate must be corrected or it makes sense to access laboratory testing. The algorithm proposed in this doctoral dissertation has proven effective.
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Dejana, Herceg. "Modelovanje mernih transformatora bez jezgra sa feromagnetskim oklopom". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2016. https://www.cris.uns.ac.rs/record.jsf?recordId=96158&source=NDLTD&language=en.
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U ovoj doktorskoj tezi razvijen je postupak za ispitivanje uticajaoklopa na merni transformator bez jezgra sa stanovištalinearnosti transformatora i zaštite transformatora oduticaja elektromagnetske smetnje. Formiran je parametarski modeloklopa i mernog transformatora bez jezgra. Izvedena su merenjamagnetskih karakteristika feromagnetskih materijala, dat je novianalitički model histerezisa i određene su krive magnetisanja ipermeabilnosti materijala. Na osnovu numeričkih ieksperimentalnih rezultata, a u skladu sa definisanimkriterijumom, izvršena je analiza kvaliteta oklapanja zarazmatrane tipove oklopa.In this thesis a method for examining the effects of shielding on a corelessmeasuring transformer from the standpoint of transformer linearity and EMradiation shielding is developed. A parametric model of the shield and thecoreless measuring transformer is constructed. Measurements of magneticproperties of ferromagnetic materials were performed; a new analytical modelof hysteresis is developed; magnetization curves and permeability of thematerials are determined. Based on numerical and experimental results, andusing the defined criterion, the analysis of shielding quality of the consideredshield types was performed.
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Stover, Rachyl-anne. "Description of the dietary breadth and overlap of the translocated Shark Bay rufous hare-wallaby (Lagorchestes hirsutus) and banded hare-wallaby (Lagostrophus fasciatus) using scat DNA". Thesis, Edith Cowan University, Research Online, Perth, Western Australia, 2025. https://ro.ecu.edu.au/theses/2922.
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Conservation translocations are increasingly used worldwide to prevent extinctions and support ecological restoration projects. These translocations involve a lot of uncertainty, particularly when species are introduced to ecosystems where they have not previously coexisted. Many historical translocations in Australia and globally have failed due to insufficient baseline data and inadequate post-translocation monitoring. Contemporary translocations can aim to improve translocation outcomes by increasing baseline data collection and developing robust post-release monitoring for translocated species. The development of environmental DNA (eDNA) techniques has facilitated the collection of information from environments with minimal disturbance to species. The advancement of such passive monitoring techniques has allowed for increased ability to monitor and study cryptic and rare species.
The Shark Bay rufous hare-wallaby (Lagorchestes hirsutus bernieri) and the banded hare-wallaby (Lagostrophus fasciatus) were introduced to Dirk Hartog Island (DHI) from founder populations on the Bernier and Dorre islands in Shark Bay, Western Australia, as part of the Dirk Hartog Island National Park Ecological Restoration Program. Once found across large areas of south-west and central Australia, the populations on the Bernier and Dorre islands are the last natural populations of the two species due to habitat loss and predation post-European colonisation. As the rufous hare-wallaby and banded hare-wallaby have not been previously recorded on DHI, there was uncertainty regarding their successful establishment on the island and their potential interactions with each other and other species involved in the restoration program.
The diets of rufous hare-wallabies and banded hare-wallabies were investigated through the DNA metabarcoding of scat samples from three islands in Shark Bay, Western Australia. This researched aimed to assess dietary overlap and the potential for resource competition between the two hare-wallaby species. Additionally, the difference in diet between the founder populations to their post-translocation diets on DHI were analysed as an indication of dietary flexibility and adaptability to environmental changes. The diets of both species of hare-wallaby were found to be broad, containing taxa from multiple plant families including invasive weeds. On DHI there was a high degree of overlap in the diets of the two species, indicating a risk of resource competition. The diets of the translocated populations differed significantly from the founder populations, which demonstrated flexible foraging behaviour and signified that rufous hare-wallabies and banded hare-wallabies are excellent candidates for future translocation projects on other islands and within mainland reserves.
This thesis is the first study to define and compare the diets of the Shark Bay rufous hare-wallaby and the banded hare-wallaby using scat DNA. The understanding of diet is fundamental to ecology and an essential consideration in restoration projects involving new species interactions. The findings from this research can benefit the fulfilment of translocation success criteria related to species establishment and health targets for the new populations. By demonstrating the dietary breadth and flexibility of Shark Bay’s hare-wallabies, this thesis exemplifies the utility of scat DNA in supporting the conservation of translocated fauna.
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Vladimir, Rajs. "Metode praćenja parametara životne sredine bazirane na pametnim mernim sistemima". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2015. https://www.cris.uns.ac.rs/record.jsf?recordId=95395&source=NDLTD&language=en.
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Kako se efekat globalnog zagrevanja odigrava širom planete, tako se svetska populacija suočava sa verovatno jednim od najvažnijih socijalnih i naučnih fenomena-promenom parametara životne sredine usled zagađenja. Preduzimanje bilo kakve akcije zahteva precizna i tačna merenja parametara životne sredine u više desetina hiljada tačaka, postavljenih širom sveta. Pošto je finansijski skupo, a i praktično nemoguće napraviti tako veliki broj mernih stanica koje bi premrežile celu planetu, očigledno je da se moraju pronaći neka alternativna rešenja. Napravljen je merni sistem i realizovane su merne metode za udaljeno merenje parametara životne sredine. Ovaj sistem može biti realizovan kao stacionarna ili kao pokretna merna stanica. Radna hipoteza se zasniva na korišćenju statističke analize izmernih podataka, gde se dolazi do pretpostavke i dokaza o mogućnosti smanjenja broja senzora na mernoj stanici, jer se praćenjem jedne veličine (koncentracija ugljen-monoksida) može doći do pretpostavljene vrednosti druge veličine (koncentracija azot-dioksida) u slučaju da potiču iz istog izvora. A korišćenjem predikcije, pomoću regresionog modela – interpolacije i ekstrapolacije pokazala se mogućnost smanjenja broja mernih stanica. Naime, korišćenjem interpolacionih krivih moguće je na teritoriji jednog grada prikazati estimacije koncentracija gasova na osnovu podataka sa pokretne merne stanice. Takođe, na osnovu matematičkog ARMA modela pokazana je estimacija koncentracije gasova na osnovu prethodnih merenja.As the effects of global warming are spreading globally, the world population encounters one of the most important social and scientific phenomena- changing the parameters of the environment due to pollution. Any conducted action requires precise and accurate measuring of the environmental parameters at several dozens of thousands points deployed around the world. Since financially, as well as practically, it is impossible to create such a large number of measuring stations which would network all over the planet, it is obvious that some alternative solutions must be found. A new measuring system is developed and measuring methods for remote measurement of environmental parameters are implemented. This system can be implemented as a stationary or mobile measuring station. The working hypothesis is based on the use of statistical analysis of measurement data. It leads to the possibility of reducing the number of sensors at measure station, as based on the monitoring of one value-gas concentration (the concentration of carbon monoxide) can be estimated values of other gas (the concentration of nitrogen - dioxide) in the case that they originate from the same source. Using prediction and regression models - interpolation and extrapolation have shown the possibility to reduce the number of measuring stations. Specifically, in the territory of one observedcity, by using interpolation curves, the estimation of concentrations of gases based on data from the measuring system can be shown. Also, based on a mathematical model (ARMA) estimation of concentrations of gases based on previous measurements is shown.
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Mernik, Thomas [Verfasser], i Angelo [Akademischer Betreuer] Santangelo. "The Expected Angular Resolution of the JEM-EUSO Mission / Thomas Mernik ; Betreuer: Angelo Santangelo". Tübingen : Universitätsbibliothek Tübingen, 2014. http://d-nb.info/1163282588/34.
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Uroš, Kovačević. "Izražavanje merne nesigurnosti kapacitivnih razdelnika napona sa koncentrisanim parametrima u oblasti visokih frekvencija". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104228&source=NDLTD&language=en.
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Ova disertacija sadrži analizu mogućnosti merenja brzih impulsnihnapona i izražavanja odgovarajuće merne nesigurnosti. Dokazano je daje moguće izvršiti numeričku simulaciju odziva mernog sistema naimpuls brzine porasta reda veličine pikosekunde. Izražena je mernanesigurnost kapacitivnog razdelnika napona Monte Karlo metodom.Prikazan je način konstruisanja kapacitivnog razdelnika napona satalasovodnim prilagodnim otporom. Konstruisano je više tipovakapacitivnih razdelnika napona izuzetno dobrih karakteristika. Naosnovu dobijenih rezultata je odabran kapacitivni razdelnik naponanajboljih karakteristika i izražena je njegova merna nesigurnostThis thesis contains an analysis of the possibilities for measurement of veryfast pulse voltages and proper expression of measurement uncertainty. It hasbeen proven that it is possible to perform numerical simulation to theresponse of the very fast pulse voltage with rise time at the order ofpicoseconds of the measuring system. Measurement uncertainty ofcapacitive voltage dividers is expressed by Monte Carlo method. The way ofconstructing capacitive voltage dividers with a waveguide resistance isshown in this thesis. The design of four types of capacitive voltage dividerswith extremely good features are shown. Based on these results, capacitivevoltage divider with best characteristics is selected and its measurementuncertainty is expressed.
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Branko, Štrbac. "Procena merne nesigurnosti pri merenju ravnosti na koordinatnoj mernoj mašini primenom Monte Karlo simulacije". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2017. https://www.cris.uns.ac.rs/record.jsf?recordId=104130&source=NDLTD&language=en.
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Koordinatne merne mašine (KMM) su dominantni merni instrumenti udimenzionalnoj metrologiji. NJihovom upotrebom se može izmeritibilo koja makro tolerancija označena na tehničkoj dokumentaciji.Tolerancija ravnosti je često prisutna u cilju izvršenja zahtevanihfunkcionalnih zahteva radnog predmeta. Istraživanja sprovedena uovom radu se bave problemom procene greške ravnosti merene na KMMzasnovane na metodi minimalne zone i procene merne nesigurnosti zaovaj merni zadakat. Aksenat je stavljen na primeni Monte Karlometode kao simulacionog alata za procenu merne nesigurnosti.Razvijena je nova metodologija za procenu greške ravnosti kao isimulacioni model za procenu merne nesigurnosti za ovaj mernizadatak.Coordinate measuring machines (CMMs) are dominant measuringinstruments in dimensional metrology. These machines can measure anymacro-tolerance indicated in the technical documentation. Flatness toleranceis often present with the aim of completing the needed functionalrequirements of a workpiece. The investigation conducted in this paperconsiders the problem of assessing the flatness error measured on a CMMbased on the minimum zone method and on the method of evaluatingmeasurement uncertainty for this measuring task. The emphasis is on theuse of Monte Carlo method as a simulation tool for evaluating measurementuncertainty. A new methodology for assessing the flatness error has beendeveloped, as well as a simulation model for evaluating measurementuncertainty for this measuring task.
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Marko, Đurđević. "Прилог истраживању струјања гаса кроз мерне бленде са вишеотвора". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2020. https://www.cris.uns.ac.rs/record.jsf?recordId=115023&source=NDLTD&language=en.
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Уз растуће цене енергената, данас је од пресудног значаја тачно мерењепротока флуида у индустријским процесима. Због своје једноставности,поузданости и једноставног одржавања, мерне бленде су честораспрострањени мерни инструменти у многим индустријама.Конвенционална мерна бленда са једним отвором (БЈО) је широкозаступљен мерни инструмент на бази диференцијалног притиска, али овајинструмент има и одређене недостатке, који се могу превазићи мерномблендом са више отвора (БВО). Предмет истраживања докторскедисертације је била БВО. За истраживање су се користилеекспериментална и нумеричка метода, а истражили су се однос површинеотвора бленде и површине попречног пресека цеви β, пад притисака,губитак притисака, утицај угла излазне ивице мерне бленде, утицајвлажности гаса и утицај равних деоница испред и иза мерне бленде натачност мерења. Такође поред овога одредио се и губитак снаге којинастаје код различитих мерних бленди, поврат притиска, коефицијентпротока тј. коефицијент пада притиска. Представљени резултати у оквирудокторске дисертације су показали бројне предности БВО у односу на БЈО.Uz rastuće cene energenata, danas je od presudnog značaja tačno merenjeprotoka fluida u industrijskim procesima. Zbog svoje jednostavnosti,pouzdanosti i jednostavnog održavanja, merne blende su čestorasprostranjeni merni instrumenti u mnogim industrijama.Konvencionalna merna blenda sa jednim otvorom (BJO) je širokozastupljen merni instrument na bazi diferencijalnog pritiska, ali ovajinstrument ima i određene nedostatke, koji se mogu prevazići mernomblendom sa više otvora (BVO). Predmet istraživanja doktorskedisertacije je bila BVO. Za istraživanje su se koristileeksperimentalna i numerička metoda, a istražili su se odnos površineotvora blende i površine poprečnog preseka cevi β, pad pritisaka,gubitak pritisaka, uticaj ugla izlazne ivice merne blende, uticajvlažnosti gasa i uticaj ravnih deonica ispred i iza merne blende natačnost merenja. Takođe pored ovoga odredio se i gubitak snage kojinastaje kod različitih mernih blendi, povrat pritiska, koeficijentprotoka tj. koeficijent pada pritiska. Predstavljeni rezultati u okvirudoktorske disertacije su pokazali brojne prednosti BVO u odnosu na BJO.
Nowadays, with rising energy prices, accurate flow measurement is playing animportant role in industrial processes. Due to its simplicity, reliability and ease ofmaintenance, orifice flow meters are very common measuring instruments inmany industries. Conventional single-hole orifice (SHO) flow meter is widelyused differential pressure-based instrument, but this instrument has somedisadvantages that can be overcome by multi-hole orifice (MHO) flow meter. Thesubject of the doctoral dissertation research was MHO flow meter. Experimentaland numerical methods were used for the research, whereas the ratio of theorifice area and the cross-sectional pipe area β, pressure drop, pressure loss,angle of bevel influence, gas humidity influence and straight sections upstreamand downstream of the orifice influence on measurement accuracy wereinvestigated. Also, power loss for different orifice flow meters, pressure recovery,discharge coefficient i.e. pressure drop coefficient were determined. Resultspresented within the doctoral dissertation showed numerous advantages ofMHO compared to SHO.
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Marjan, Urekar. "Prilog optimizaciji performansi digitalnih merenja". Phd thesis, Univerzitet u Novom Sadu, Fakultet tehničkih nauka u Novom Sadu, 2018. https://www.cris.uns.ac.rs/record.jsf?recordId=107133&source=NDLTD&language=en.
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U tezi se razmatra kriterijum optimalnosti stohastičkog fleš A/D konvertora (SFADC) koji predstavlja osnovu stohastičke digitalne metode merenja (SDMM). Razvijen je matematički i simulacioni model višebitnog SFADC i određen optimum broja bita rezolucije. Napravljen je hardverski prototip 4-bitnog stohastičkog mernog instrumenta (SMI), koji je ispitan brojnim eksperimentima i upoređen sa teorijski određenim vrednostima performansi merenja. Hipoteza ove teze – da postoji optimalni broj bita rezolucije SMI pri kome se ostvaruje maksimalna dobit u preciznosti merenja po ceni dupliranja potrebnog hardvera – potpuno je potvrđena.The thesis considers the criterion of optimality of the stochastic flash A/D converter (SFADC), which is the basis of the stochastic digital measurement method (SDMM). The mathematical and simulation model of the multibit SFADC was developed and the optimal number of bits of resolution was determined. A hardware prototype of a 4-bit stochastic measuring instrument (SMI) was made, tested in numerous experiments and compared with theoretically determined measurement performance values. The hypothesis of this thesis - that there is an optimal number of SMI resolution bits in which the maximum benefit of the measurement precision is achieved at the price of duplication of the required hardware - is fully confirmed
Książki na temat "Mernine"
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1967-, Talmats Madjid, Merniz Nora 1967- i Nasser 1956-, red. Beur stories: Madjid Talmats, Nora Merniz, Nasser. [S.l.]: Marsa, 2001.
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Yugoslavia. Zbirka propisa o mernim jedinicama i dragocenim metalima. Beograd: Službeni list SRJ, 1995.
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Čʻačʻava, Tʻamaz. Ase dasrulda ubzo-ukvlod mernis čeneba!: Lekʻsebi, 1998-1999. Tʻbilisi: [s.n.], 2000.
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Manevich, V. A. 22-x mernoe ivritskoe prostranstvo: Tora i matematika : matematicheskie aspekty v kabbalisticheskikh issledovanii︠a︡kh. Israel: [s.n.], 2000.
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de, Decker Jacques, Wedekind Frank 1864-1918, Wangermée Robert i Mernier Benoît 1964-, red. L' éveil du printemps, naissance d'un opéra: Frühlings Erwachen : opéra de Benoît Mernier et Jacques De Decker, d'après Frank Wedekind. Sprimont: Mardaga, 2007.
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Schreiner, Annika, i Tassia Schreiner. Merni the Mernicorn. Schreiner, Tassia, 2023.
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Komentar Zakona o mernim jedinicama i merilima. Beograd: Novinsko-izdavačka ustanova Službeni list SFRJ, 1987.
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La politique française en MerNoire, 1747-1789: Vicissitudes d'une implantation. İstanbul: Les Éditions Isis, 1992.
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Markuš, Miša, Neda Spasojević i Aleksandar Atanacković. "Merenje amplitudske i frekvencijske modulacije analizatorom frekvencijskog spektra". W LXVIII Конференција ЕТРАН 2024, 144–48. Друштво за ЕТРАН и Академска мисао, 2024. http://dx.doi.org/10.69994/68e24024.
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U radu je predstavljen postupak merenja amplitudske i frekvencijske modulacije korišćenjem analizatora frekvencijskog spektra. Prikazan je proračun merne nesigurnosti merenja i izvršeno je poređenje sa slučajem kada se ovi tipovi analognih modulacija mere mernim prijemnikom.
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Spasojević, Neda, Miša Markuš i Slobodan Subotić. "Unapređenje nesigurnosti etaloniranja apsolutne RF snage". W LXVIII Конференција ЕТРАН 2024, 149–53. Друштво за ЕТРАН и Академска мисао, 2024. http://dx.doi.org/10.69994/68e24025.
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U radu je opisan način poboljšanja nesigurnosti etaloniranja apsolutne vrednosti srednje snage primenom transfer etalona RF snage. Predloženi metod podrazumeva alternativnu primenu etalona primarno namenjenog za prenošenje sledivosti RF snage na senzore snage. Unapređenje merne nesigurnosti je inicirano učešćem laboratorije Tehničkog opitnog centra (TOC) u međulaboratorijskom poređenju iz oblasti RF snage, sa ciljem da se postigne što tačnije i pouzdanije merenje. Poređenje je potvrdilo validnost metoda i ukazalo na mogućnost poboljšanja mernih mogućnosti iskazanih u obimu akreditacije laboratorije TOC-a. Primenjenim metodom se merna nesigurnost smanjuje u opsegu snage od 1 mW do 10 mW više od pet puta.
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Mijušković, Srđan. "DIGITALIZACIJA VN POSTROJENJA – MERNI TRANSFORMATORI". W 5. Savetovanje Srpskog nacionalnog komiteta Međunarodnog saveta za velike električne mreže. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre35.0165m.
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Digitalization of HV facilities is a process that is part of a much larger movement, the Industrial Revolution 4.0. IEC 61850 standard, developed since the end of the 1990s, deals with thousands of pages in its numerous parts on various functions of the architecture of HV system systems, but also other segments of the power system, with the continuation of digitalization as the goal. The IEC 61850 standard, developed since the end of the 1990s, in its numerous parts on thousands of pages deals with the architecture of HV facilities various functions and other segments of the power system, as well, with the continuation of digitalization as the goal. Digitalization of the HV facilities up to the Process Bus level encourages the further development of HV elements and consideration regarding the future of equipment in operation. Special attention must therefore be given to the Merging Units and new technologies in the manufacture of Low Power Instrument Transformers (LPIT), which is shown in the paper.
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Rajić, Tomislav, Koviljka Stanković i Đorđe Čubrić. "ISPITIVANJE INDUKTIVNIH NAPONSKIH MERNIH TRANSFORMATORAOTPORNOST IZOLACIJE I PARCIJALNA PRAŽNJENJA". W 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.2053r.
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During the monitoring, management and protection of electrical plants, networks and devices, regular measurement of various quantities is necessary. First of all, current and voltage measurements are basic. In this paper, attention is directed to voltage inductive transformers. The insulation is made of oil and it is necessary to regularly check the condition of the insulation in order to determine the need for its replacement. Of the many measurements that are made in practice, this paper will talk about insulation resistance and partial discharges in oil. Moisture and impurities mostly affect the dielectric properties of oil insulation. Oil-paper insulation with absorbed moisture is characterized by lower values of insulation resistance and polarization index. Aging of the insulation generally leads to a decrease in the insulation resistance, and to a certain extent to a decrease in the polarization index, especially if due to aging oil deposits are separated from the winding. Partial discharge is the phenomenon of multiple electrical breakdowns limited to some local area of the insulating material. Methods of measuring insulation resistance and partial discharges as well as reference values for assessing the state of insulation based on measured values are presented.
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Subotić, Slobodan, Nikola Jovičić i Dragan Lazić. "Analiza merne nesigurnosti etaloniranja električne kapacitivnosti LCR metara". W LXVIII Конференција ЕТРАН 2024, 154–57. Друштво за ЕТРАН и Академска мисао, 2024. http://dx.doi.org/10.69994/68e24026.
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LCR metri su multifunkcijski uređaji za merenje električne induktivnosti, kapacitivnosti i otpornosti. Periodičnim etaloniranjem LCR metara obezbeđuje se potvrda metroloških karakteristika datih u specifikaciji proizvođača. U radu je prikazana analiza merne nesigurnosti etaloniranja električne kapacitivnosti LCR metara, kao i metoda direktnog poređenja sa referentnim etalonom za električnu kapacitivnost.
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Obradović, Dušan, i Aleksandar Antonić. "PROVERA STANJA MERNIH TRANSFORMATORA 110 kV ISPITIVANJEM PARCIJALNIH PRAŽNJENJA ULTRAZVUČNOM METODOM". W 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.0268o.
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Condition assessment of a large number of 110 kV instrument transformers was carried out in 2022. The previous condition assessment was carried out in 2017. Condition assessment of measuring transformers 110 kV includes ultrasonic testing of partial discharges of the AED-2000 device, and in case partial discharges are determined by ultrasonic testing or partial discharges are suspected, samples are taken for dissolved gases in oil analysis (gas chromatographic analysis). All tested 110 kV instrument transformers are older types with an iron vessel in the lower part. Inverse instrument transformers 110 kV, newer with an aluminum vessel in the lower part and instrument transformers 110 kV with an open magnetic circuit without a vessel could not be tested due to the method of connecting the probe using a magnet. For newer types with an aluminum vessel in the lower part, it is possible to place the probe in several ways. The number of instrument transformers 110 kV tested by the ultrasound method for partial discharge are shown and analyzed. In addition to what is shown, periodic thermal imaging checks of these and other devices are carried out, as well as targeted GH analyzes of 110 kV instrument transformers.
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Naumović-Vuković, Dragana, i Slobodan Škundrić. "OBEZBEĐENJE VALIDNOSTI REZULTATA ISPITIVANJA I ETALONIRANJA U OBLASTI STRUJNIH MERNIH TRANSFORMATORA". W 36. Savetovanja CIGRE Srbija 2023 Fleksibilnost elektroenergetskog sistema. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre36.0299nv.
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The laboratories accredited according to standard EN/IEC 17025:2017 for calibration and testing, have to demonstrate how they ensure the validity of their results. One way to fulfil requirements for monitoring the validity of the calibration and testing results is through the intralaboratory comparisons where it is available and appropriate. The paper presents interlaboratory comparison of current transformer accuracy testing by two different measuring methods. This is one of the used ways for ensuring the validity of testing and calibration results and monitoring of the performance in the Laboratory for testing and calibration in Electrical Engineering Institute Nikola Tesla Belgrade.
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Sreemathy, J., i N. Prasath. "Crop Recommendation with BiLSTM-MERNN Algorithm for Precision Agriculture". W 2023 International Conference on Networking and Communications (ICNWC). IEEE, 2023. http://dx.doi.org/10.1109/icnwc57852.2023.10127227.
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Praščević, Momir, i Darko Mihajlov. "Proračun nesigurnosti dugotrajnih merenja buke u životnoj sredini bez nadzora". W LXVIII Конференција ЕТРАН 2024, 21–26. Друштво за ЕТРАН и Академска мисао, 2024. http://dx.doi.org/10.69994/68e24003.
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Opšte smernice za procenu vrednosti merne nesigurnosti prilikom merenja buke u životnoj sredini, koja uključuje uticaj različitih izvora nesigurnosti, sadržane su u standardu ISO 1996-2. Prema datim smernicama, u radu je predstavljen detaljan metodološki pristup za procenu nesigurnosti dugotrajnih merenja buke u životnoj sredini bez nadzora na osnovu velikog broja rezultata nezavisnih merenja ekvivalentnih nivoa zvučnog pritiska, izvršenih u različitim situacijama emisije zvuka i meteorološkim uslovima. Rezultati merenja su stratifikovani u različite okvire koji označavaju različite kategorije emisije zvuka i meteoroloških uslova. U radu su prikazani rezultati proračuna nesigurnosti dugotrajnih merenja buke u životnoj sredini bez nadzora sprovedenih na teritoriji grada Niša korišćenjem predloženog metodološkog pristupa.
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Polužanski, Vladimir, Nenad Kartalović, Koviljka Stanković, Boško Nikolić i Nikola Miladinović. "ISTRAŽIVANJE UTICAJA PROMENE TEMPERATURE MINERALNOG ULJA NA BUDŽET MERNE NESIGURNOSTI SVEAKUSTIČNOG NEITERATIVNOG ALGORITMA ZA LOCIRANJE PARCIJALNOG PRAŽNJENJA". W 35. Savetovanje Srpskog nacionalnog komiteta Međunarodnog saveta za velike električne mreže. Srpski nacionalni komitet Međunarodnog saveta za velike električne mreže CIGRE Srbija, 2023. http://dx.doi.org/10.46793/cigre35.1176p.
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The paper presents a procedure for improving the calculation of the measurement uncertainty of a non-iterative algorithm for locating partial discharge in mineral oil by the all-acoustic method. The specificity of the given algorithm is the approximation (assumption) that the temperature of the mineral oil (the speed of the acoustic signal) is constant over the volume of the material. Since in actual exploitation conditions, the temperature of mineral oil is non-stationary, inhomogeneous, and dependent on influential external factors, this assumption can be a great source of measurement uncertainty in determining the location of partial discharge by a given algorithm. The non-iterative algorithm has 19 parameters, i.e., a relatively large nineteen- dimensional state space that needs to be investigated to quantify the impact of changes in oil temperature on the combined measurement uncertainty budget. For a given problem, the generation and exploration of state space can be effectively achieved by applying the Monte Carlo method from the field of artificial intelligence. In this paper, for a specific sensors' position, the influence of the shape and dimensions of the area filled with mineral oil (in which partial discharge can occur) on the contribution of oil temperature to the standard combined measurement uncertainty of the non-iterative algorithm is investigated. Also, the possibilities of applying the acquired insights (taking into account modern economic sensory solutions) in the concepts of continuous monitoring of the occurrence of partial discharges in mineral oil within the Industrial Internet of Things were discussed.