273 research outputs found
Yugoslavism
No full textTitle: Jugoslovjenstvo (Yugoslavism) Originally published: Pozor (political daily), a series of three articles published between 21 October and 3 September, 1860. The excerpt is the third (the last) article. Language: Croatian The excerpt used is from Vladimir Koščak ed, J.J. Strossmayer, Franjo Rački, Politički spisi: rasprave, članci, govori, memorandumi (Zagreb: Znanje, 1971), pp. 285–290. About the author Franjo Rački [1828, Fužine, (near Rijeka, It. Fiume) – 1894, Zagreb]: Catholic pries..
One vote in favour of Franjo Marković
No full textIn the event of 70‘h anniversary of the death of the Croatian romantic
writer Franjo Markovic (1845—1914) the author tries to incite the interest for the researching and interpreting of the works of this poet, epic writer, playwright, critic, essayist and philosopher. The author tries to stimulate the new attitude towards Croatian literary work of the past century and point out Markovid’s importance and stimulative function which is unduly being forgotten
Deconstructing a myth: Franjo Tuđman and Bosnia and Herzegovina
No full textBased on the transcripts of conversations held in the Croatian president’s office, other documents and testimony by participants in events, the author presents the essential elements of Franjo Tuđman’s geopolitical thoughts with special focus on Bosnia and Herzegovina
Development of a measuring transducer for measuring the concentration of solutions
No full textCilj ovog završnog rada je razvoj, izrada i testiranje kapacitivnog senzora koncentracije etanola. Projektirana pločica sastoji se od dvije planarne bakrene elektrode koje su spojene na integrirani krug AD7746. U eksperimentalnom dijelu rada prikazano je dimenzioniranje i projektiranje mjernog sustava te je kao rezultat mjerenja različitih koncentracija etanola dobivena kalibracijska krivulja s jednadžbom pravca y = -1,0284x + 1,1119. Maksimalni interval pouzdanosti mjerenja iznosi ±0,00275 pF i predstavlja odnos između kapaciteta i koncentracije etanola u otopini. Također, određene su i značajke mjernog pretvornika kao što je linearnost koja iznosi 5,617 %PO. Izrađeni senzor može poslužiti za brojna daljnja istraživanja kod mjerenja koncentracije zbog svoje kompaktnosti te jednostavnosti izvedbe.In this paper, the main goal is to develop and test a capacitive ethanol concentration sensor. The designed plate consists of 2 parallel plates of copper electrodes connected to the sensor AD7746. In the experimental part, the measuring system had been dimensioned and designed. As a result of measuring different concentrations we obtained a calibration curve with equation y = -1,0284x + 1,1119 had been obtained. The maximum value of confidence interval is ±0,00275 pF, which is the ratio between the capacity and the concentration of ethanol in the solution. The most important features of the measuring transducer are also determined like linearity which is 5,617 %FS (full scale). The method itself can be used for further research in concentration measurement due to its simplicity and great application potential
Development of a measuring transducer for measuring the concentration of solutions
No full textCilj ovog završnog rada je razvoj, izrada i testiranje kapacitivnog senzora koncentracije etanola. Projektirana pločica sastoji se od dvije planarne bakrene elektrode koje su spojene na integrirani krug AD7746. U eksperimentalnom dijelu rada prikazano je dimenzioniranje i projektiranje mjernog sustava te je kao rezultat mjerenja različitih koncentracija etanola dobivena kalibracijska krivulja s jednadžbom pravca y = -1,0284x + 1,1119. Maksimalni interval pouzdanosti mjerenja iznosi ±0,00275 pF i predstavlja odnos između kapaciteta i koncentracije etanola u otopini. Također, određene su i značajke mjernog pretvornika kao što je linearnost koja iznosi 5,617 %PO. Izrađeni senzor može poslužiti za brojna daljnja istraživanja kod mjerenja koncentracije zbog svoje kompaktnosti te jednostavnosti izvedbe.In this paper, the main goal is to develop and test a capacitive ethanol concentration sensor. The designed plate consists of 2 parallel plates of copper electrodes connected to the sensor AD7746. In the experimental part, the measuring system had been dimensioned and designed. As a result of measuring different concentrations we obtained a calibration curve with equation y = -1,0284x + 1,1119 had been obtained. The maximum value of confidence interval is ±0,00275 pF, which is the ratio between the capacity and the concentration of ethanol in the solution. The most important features of the measuring transducer are also determined like linearity which is 5,617 %FS (full scale). The method itself can be used for further research in concentration measurement due to its simplicity and great application potential
Structure and properties of PEG/n-ZnO nanocomposite
No full textU ovom radu istražena su svojstva PEG12000 i PEG20000 polimera i PEG/n-ZnO kompozita s različitim udjelom nanočestica. PEG koji ima vrlo dobru biokompatibilnost i hidrofilna svojstvima, odabran je kao polimerna matrica, dok je nano ZnO, zahvaljujući svojim antibakterijskim svojstvima i svojstvima apsorpcije UV zračenja, odabran je kao punilo. Kompoziti su pripravljeni u vodenoj otopini zamiješavanjem nano-ZnO čestica s PEG polimerom. Svojstva PEG polimera i PEG/n-ZnO kompozita različitog sastava istražena su primjenom različitih tehnika. Površinske karakteristike određene su mjerenjem kontaktnog kuta na goniometru. Toplinska svojstva istražena su primjenom diferencijalne pretražne kalorimetrije i termogravimetrijske analize. Istražena su svojstva PEG i PEG/n-ZnO nakon ubrzanog starenja djelovanjem UV zračenja u vremenu od 24 sati i 120 sati. Strukturne promjene nakon UV zračenja praćene su primjenom FTIR (Fourier-transform infracrvena spektroskopija) analize. Rezultati su pokazali da se na međupovršini PEG20000/n-ZnO uspostavljaju slabije interakcije u odnosu na PEG12000/n-ZnO. Kompoziti s većim udjelom nanočestica razrušavaju kristalnu strukturu PEG polimera i ne doprinose povećanju na toplinske stabilnosti. Bolja zaštitna svojstva od UV zračenja pokazao je sustav s PEG12000 i većim udjelom n-ZnO punila.In this study, the properties of PEG12000 and PEG20000 polymers and of PEG/n-ZnO composites with different nanoparticle contents were investigated. PEG, which has very good biocompatibility and hydrophilic properties, was chosen as the polymer matrix, while
nano-ZnO was selected as the filler due to its antibacterial and UV absorption properties.
The composites were prepared in aqueous solution by mixing nano-ZnO particles with PEG polymers. The properties of the PEG polymers and the PEG/n-ZnO composites of different compositions were investigated using different techniques. The surface properties were determined by measuring the contact angle with a goniometer. The thermal properties were investigated by differential scanning calorimetry and thermogravimetric analysis.
The properties of PEG and PEG/n-ZnO were investigated after accelerated aging by
UV irradiation over 24 hours and 120 hours. Structural changes after UV irradiation were monitored by FTIR (Fourier transform infrared spectroscopy) analysis. The results showed that weaker interactions occur at the PEG20000/n-ZnO interface compared to PEG12000/n-ZnO. Composites with a higher content of nanoparticles disable the crystalline structure of the PEG polymer and do not contribute to an increase in thermal stability. The system with PEG12000 and a higher content of n-ZnO filler showed better protective properties against UV radiation
Structure and properties of PEG/n-ZnO nanocomposite
No full textU ovom radu istražena su svojstva PEG12000 i PEG20000 polimera i PEG/n-ZnO kompozita s različitim udjelom nanočestica. PEG koji ima vrlo dobru biokompatibilnost i hidrofilna svojstvima, odabran je kao polimerna matrica, dok je nano ZnO, zahvaljujući svojim antibakterijskim svojstvima i svojstvima apsorpcije UV zračenja, odabran je kao punilo. Kompoziti su pripravljeni u vodenoj otopini zamiješavanjem nano-ZnO čestica s PEG polimerom. Svojstva PEG polimera i PEG/n-ZnO kompozita različitog sastava istražena su primjenom različitih tehnika. Površinske karakteristike određene su mjerenjem kontaktnog kuta na goniometru. Toplinska svojstva istražena su primjenom diferencijalne pretražne kalorimetrije i termogravimetrijske analize. Istražena su svojstva PEG i PEG/n-ZnO nakon ubrzanog starenja djelovanjem UV zračenja u vremenu od 24 sati i 120 sati. Strukturne promjene nakon UV zračenja praćene su primjenom FTIR (Fourier-transform infracrvena spektroskopija) analize. Rezultati su pokazali da se na međupovršini PEG20000/n-ZnO uspostavljaju slabije interakcije u odnosu na PEG12000/n-ZnO. Kompoziti s većim udjelom nanočestica razrušavaju kristalnu strukturu PEG polimera i ne doprinose povećanju na toplinske stabilnosti. Bolja zaštitna svojstva od UV zračenja pokazao je sustav s PEG12000 i većim udjelom n-ZnO punila.In this study, the properties of PEG12000 and PEG20000 polymers and of PEG/n-ZnO composites with different nanoparticle contents were investigated. PEG, which has very good biocompatibility and hydrophilic properties, was chosen as the polymer matrix, while
nano-ZnO was selected as the filler due to its antibacterial and UV absorption properties.
The composites were prepared in aqueous solution by mixing nano-ZnO particles with PEG polymers. The properties of the PEG polymers and the PEG/n-ZnO composites of different compositions were investigated using different techniques. The surface properties were determined by measuring the contact angle with a goniometer. The thermal properties were investigated by differential scanning calorimetry and thermogravimetric analysis.
The properties of PEG and PEG/n-ZnO were investigated after accelerated aging by
UV irradiation over 24 hours and 120 hours. Structural changes after UV irradiation were monitored by FTIR (Fourier transform infrared spectroscopy) analysis. The results showed that weaker interactions occur at the PEG20000/n-ZnO interface compared to PEG12000/n-ZnO. Composites with a higher content of nanoparticles disable the crystalline structure of the PEG polymer and do not contribute to an increase in thermal stability. The system with PEG12000 and a higher content of n-ZnO filler showed better protective properties against UV radiation
Development of a measuring transducer for measuring the concentration of solutions
No full textCilj ovog završnog rada je razvoj, izrada i testiranje kapacitivnog senzora koncentracije etanola. Projektirana pločica sastoji se od dvije planarne bakrene elektrode koje su spojene na integrirani krug AD7746. U eksperimentalnom dijelu rada prikazano je dimenzioniranje i projektiranje mjernog sustava te je kao rezultat mjerenja različitih koncentracija etanola dobivena kalibracijska krivulja s jednadžbom pravca y = -1,0284x + 1,1119. Maksimalni interval pouzdanosti mjerenja iznosi ±0,00275 pF i predstavlja odnos između kapaciteta i koncentracije etanola u otopini. Također, određene su i značajke mjernog pretvornika kao što je linearnost koja iznosi 5,617 %PO. Izrađeni senzor može poslužiti za brojna daljnja istraživanja kod mjerenja koncentracije zbog svoje kompaktnosti te jednostavnosti izvedbe.In this paper, the main goal is to develop and test a capacitive ethanol concentration sensor. The designed plate consists of 2 parallel plates of copper electrodes connected to the sensor AD7746. In the experimental part, the measuring system had been dimensioned and designed. As a result of measuring different concentrations we obtained a calibration curve with equation y = -1,0284x + 1,1119 had been obtained. The maximum value of confidence interval is ±0,00275 pF, which is the ratio between the capacity and the concentration of ethanol in the solution. The most important features of the measuring transducer are also determined like linearity which is 5,617 %FS (full scale). The method itself can be used for further research in concentration measurement due to its simplicity and great application potential
Structure and properties of PEG/n-ZnO nanocomposite
No full textU ovom radu istražena su svojstva PEG12000 i PEG20000 polimera i PEG/n-ZnO kompozita s različitim udjelom nanočestica. PEG koji ima vrlo dobru biokompatibilnost i hidrofilna svojstvima, odabran je kao polimerna matrica, dok je nano ZnO, zahvaljujući svojim antibakterijskim svojstvima i svojstvima apsorpcije UV zračenja, odabran je kao punilo. Kompoziti su pripravljeni u vodenoj otopini zamiješavanjem nano-ZnO čestica s PEG polimerom. Svojstva PEG polimera i PEG/n-ZnO kompozita različitog sastava istražena su primjenom različitih tehnika. Površinske karakteristike određene su mjerenjem kontaktnog kuta na goniometru. Toplinska svojstva istražena su primjenom diferencijalne pretražne kalorimetrije i termogravimetrijske analize. Istražena su svojstva PEG i PEG/n-ZnO nakon ubrzanog starenja djelovanjem UV zračenja u vremenu od 24 sati i 120 sati. Strukturne promjene nakon UV zračenja praćene su primjenom FTIR (Fourier-transform infracrvena spektroskopija) analize. Rezultati su pokazali da se na međupovršini PEG20000/n-ZnO uspostavljaju slabije interakcije u odnosu na PEG12000/n-ZnO. Kompoziti s većim udjelom nanočestica razrušavaju kristalnu strukturu PEG polimera i ne doprinose povećanju na toplinske stabilnosti. Bolja zaštitna svojstva od UV zračenja pokazao je sustav s PEG12000 i većim udjelom n-ZnO punila.In this study, the properties of PEG12000 and PEG20000 polymers and of PEG/n-ZnO composites with different nanoparticle contents were investigated. PEG, which has very good biocompatibility and hydrophilic properties, was chosen as the polymer matrix, while
nano-ZnO was selected as the filler due to its antibacterial and UV absorption properties.
The composites were prepared in aqueous solution by mixing nano-ZnO particles with PEG polymers. The properties of the PEG polymers and the PEG/n-ZnO composites of different compositions were investigated using different techniques. The surface properties were determined by measuring the contact angle with a goniometer. The thermal properties were investigated by differential scanning calorimetry and thermogravimetric analysis.
The properties of PEG and PEG/n-ZnO were investigated after accelerated aging by
UV irradiation over 24 hours and 120 hours. Structural changes after UV irradiation were monitored by FTIR (Fourier transform infrared spectroscopy) analysis. The results showed that weaker interactions occur at the PEG20000/n-ZnO interface compared to PEG12000/n-ZnO. Composites with a higher content of nanoparticles disable the crystalline structure of the PEG polymer and do not contribute to an increase in thermal stability. The system with PEG12000 and a higher content of n-ZnO filler showed better protective properties against UV radiation
DR FRANJO TUĐMAN IN SCHOOL TEXTBOOKS
No full textThis paper analyses the way in which Dr Franjo Tuđman is depicted in the textbooks used in Croatian schools. The author concludes that while some basic biographical data are provided, with respect to his contribution as a statesman some authors are prone to politicization and even self-censorship, the intention of which is to diminish his contribution to the history of the Croatian people. Most issues concerning internal and external policies require further research
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