http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Radović (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
Jelena Vuksanović,Mirjana Lj. Kijevčanin,Ivona R. Radović 한국화학공학회 2018 Korean Journal of Chemical Engineering Vol.35 No.7
The ability of binary deep eutectic solvent choline chloride+1,2-propanediol (DES1; 1 : 3 mole ratio) and ternary deep eutectic solvent choline chloride+1,2-propanediol+water (DES2; 1 : 3 : 3 mole ratio) for breaking the azeotropes hexane/heptane+ethanol by means of liquid-liquid extraction was evaluated. Liquid-liquid equilibrium experiments were performed at 298.15 K, at atmospheric pressure, and data were correlated by NRTL and UNIQUAC models. Thermodynamic properties (density, viscosity, refractive index and speed of sound) of DES1 and DES2 were determined in temperature range from 288.15K to 333.15K and at atmospheric pressure. Extraction ability of the investigated eutectics yielded promising results in comparison with conventional solvents. Besides a high selectivity towards ethanol, an advantage of DES2 is its lower viscosity and higher distribution ratio values, which is an important aspect for a potential industrial application. Another advantage of both investigated eutectics is their easy and high recoverability from the extract layer based on their negligible vapor pressure.
-
Dispersion and damping of the interband π plasmon in graphene grown on Cu(111) foils
Politano, A.,Radović,, I.,Borka, D.,Miš,ković,, Z.L.,Yu, H.K.,Farí,as, D.,Chiarello, G. Elsevier 2017 Carbon Vol.114 No.-
<P><B>Abstract</B></P> <P>By means of angle-resolved electron energy loss spectroscopy, we have measured the interband π plasmon in high-quality graphene grown on peeled-off epitaxial Cu(111) foils. Experimental loss spectra have been reproduced by means of a hydrodynamic model. The dispersion relation of the plasmon frequency shows a nearly-flat dispersion up to a critical wave-vector of 0.3 Å<SUP>−1</SUP>. We propose that the observed behavior could be originated by confinement effects in ripples in the strained graphene sheet. Strain also limits the dispersion at higher momenta, as a consequence of the increased effective mass of charge carriers. The analysis of momentum dependence of the line-width and of the inverse quality factor indicates that damping processes are dominated by decay in electron-hole pairs via indirect interband transitions.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
-
Evaluation of the Composition and Morphology of a WTi/Si System Processed by a Picosecond Laser
Suzana Petrovic,D. Peruško,I. Radovi-Bogdanovic,G. Brankovic,M. Cˇekada,B. Gakovic,M. Jakšic,M. Trtica,Milosavljevic 대한금속·재료학회 2012 METALS AND MATERIALS International Vol.18 No.3
In this work we studied the influence of laser radiation on the composition, structure and morphology of WTi thin films deposited on n-type (100) silicon wafers. The films were deposited by d.c. sputtering from a 70:30 at% W-Ti target, using Ar ions, to a thickness of ~190 nm. Irradiation was performed with a pulsed Nd:YAG laser operating at 1064 nm, whereas the pulse duration was 150 ps. Laser fluences of 3.2and 5.9 J/cm2were found to be sufficient for modification of the WTi/silicon target system. The results show: (i) ablation of WTi thin film and a Si substrate in the central zone of spots, (ii) appearance of hydrodynamic features like resolidified material, (iii) partial ablation of the WTi thin film at the periphery and (iv) appearance of thin film cracks at the far periphery. On the non-ablated areas, the laser modifica-tion induced changes in composition, such as inter-mixing of components at the WTi/Si interface with for-mation of silicides in both metals. Surface oxidation was the dominant process in the ablated areas, which is demonstrated by the presence of a SiO2 phase.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
