http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
마투르 락샤,배호한,남궁연,박준영,송선주 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.11
The present investigation consists of a comprehensive analysis of the rheological properties of tape casting slurry and optimization of its composition through rheological results. Formulation of slurry consists of gadolinium doped ceria (GDC) powder, solvent (ethanol and toluene), dispersant (menhaden fish oil), plasticizer (benzyl butyl phthalate160 and polyethylene glycol 8000), and binder (polyvinyl butyral 98). The slurry exhibits pseudoplastic behavior, which is drastically affected by a minute change in powder content. These changes in the flow properties were traced in terms of shear dependence (m) and fractal dimension (df) of aggregates, along with the trend of growth in aggregate size (R) and its volume fraction (a) in the presence of different additives. These results suggest that the GDC particles tend to form large, rigid aggregates, which show appearance of yield stress even at >0.06. Furthermore, the addition of polymeric chains in the form of additives causes the steric stabilization of aggregates and formation of their 3-D network structure, which suppresses the sedimentation velocity to zero and provides crack-free and homogeneous green tape.
Soil Amendment wit Oil Cakes in Ginger Field for Rhizome Rot Control
랄타코레,마투르,차크라바르티,Lal Thakore B.B.,Mathur Sneh,Singh R.B.,Chakravarti B.P. Korean Society of Applied Entomology 1987 한국식물보호학회지 Vol.26 No.4
토양에 첨가한 8종의 Oil cake 중 Margosa, Undi, Karanj cake은 생강뿌리썩음병의 발생을 억제하였다. 생강수량의 증진효과는 Karanj, Roselle, Mustard cake의 순으로 높았다. Out of 8 oil cakes used for soil amendment, Margosa, Undi and Karanj cakes were found to reduce the ginger rot. However, maximum increase in yield was found in Karanj cake followed by Roselle and Mustard cakes.
Bae Hohan,Shin Yonghun,마투르 락샤,Lee Donghwa,송선주 한국세라믹학회 2022 한국세라믹학회지 Vol.59 No.6
In this study, the mass and charge transport properties of La 0.2Sr0.8FeO3-δ have been investigated by deploying defect chemical analysis. From the thermo-gravimetric analysis and DC 4-probe method, oxygen non-stoichiometry ( δ) and total electrical conductivity (σ) were examined as functions of temperature (750 < T/°C < 900) and partial pressure of oxygen (10–20 < Po 2 /atm < 0.21). The standard enthalpy and entropy changes of reactions and the defect concentrations were calculated from the defect chemical relation. Relative partial molar quantities of mixing of component oxygen were also calculated from both Gibbs–Helmholtz relation and the statistical thermodynamic model. The semiconductor-like conducting behavior due to the localized electrons/holes was observed as with the variation of δ. Electron/hole mobility and oxygen ion partial conductivity were also quantitatively extracted based on the defect structure. Furthermore, fi rst-principles density functional theory (DFT) calculations predict oxidation in Po 2 regime Po 2 > 10 –15–10–12 atm (750–900 °C) can release extra holes and eventually increase electrical conductivity.