C-CVD grown MWCNTs: disclosure of defects by influence of drying condition on carboxyl functionalized structure

Experiment was carried out to investigate the effect of Ba Stearate as a reducing agent on the magnetic and physical properties of anisotropic BaFe2-W type ferrite magnets. It was found that the magnetic properties of BaO･8.5Fe2O3 were improved by adding 0.3 wt% of Ba Stearate, 0.5 wt% of SiO2, and 0.5 wt% of CaO together. The optimum conditions for making magnets were as follows; chemical composition: Ba1.029Ca0.127Si0.097C0.053Fe2+ 2.456Fe3+ 15.392O27, semisintering condition: 1350 °C×4.0 h in nitrogen gas atmosphere, drying condition: 180 °C×2.0 h in air, sintering condition: 1160 °C×1.5 h in nitrogen gas atmosphere. Magnetic and physical properties of a typical sample were Jm = 0.46 T, Jr = 0.43 T, HcJ = 182.3 kA/m, HcB = 177.2 kA/m, (BH)max = 33.8 kJ/m3, TC = 495 °C and KA = 2.65×105 J/m3 and HA = 1332 kA/m. The lattice constants of this compound were a = 5.883×10-10 m, c = 32.92×10-10 m, and c/a = 5.596.

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Adsorption characteristics of cesium on the clay minerals: Structural change under wetting and drying condition

Geoderma ◽

10.1016/j.geoderma.2018.12.002 ◽

2019 ◽

Vol 340 ◽

pp. 49-54 ◽

Cited By ~ 7

Author(s):

Sang-Min Park ◽

Jeshin Lee ◽

Eun-Ki Jeon ◽

Seunghee Kang ◽

Md. Samrat Alam ◽

...

Keyword(s):

Structural Change ◽

Clay Minerals ◽

Wetting And Drying ◽

Adsorption Characteristics ◽

Drying Condition

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Wheat Germ Drying with Different Time-Temperature Combinations in a Fluidized Bed Dryer

Processes ◽

10.3390/pr6120245 ◽

2018 ◽

Vol 6 (12) ◽

pp. 245 ◽

Cited By ~ 3

Author(s):

Der-Sheng Chan ◽

Meng-I Kuo

Keyword(s):

Experimental Data ◽

Mathematical Model ◽

Fluidized Bed ◽

Wheat Germ ◽

Dynamic Equilibrium ◽

Cooling Stage ◽

Fluidized Bed Dryer ◽

Drying Condition ◽

Drying Conditions ◽

The Mathematical Model

The development of an effective drying performance of the fluidized bed dryer (FBD) is crucial to reduce drying costs. The objective of this study was to investigate the drying performance of wheat germ (WG) with different time-temperature combinations in the FBD. The WG was dried at different set temperatures of 80, 100 and 120 °C. The moisture content (MC) and water activity (WA) of WG were measured. A mathematical model was proposed to develop an optimal drying condition. The changes in the MC of WG during drying in the FBD could be divided into the decreased period, the dynamic equilibrium period and the increased period. The product temperature of 45 °C and WA of 0.3 of WG drying could be attained by different time-temperature combinations. The mathematical model, which was developed in conjunction with different time-temperature combinations, could predict the dehydration time and the condensation time of WG for optimization the drying conditions. The WG dehydration at the heating stage and the WG condensation at the cooling stage could also be evaluated by the dehydration flux and the condensation flux, respectively. The optimal drying performance of WG exists in a compromise between promoting dehydration and reducing condensation. Information obtained from the analysis of dehydration flux and condensation flux with experimental data and simulation gave the guidelines for performing an effective drying of WG in the FBD.

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Effects of washing solution and drying condition on reactivity of nano-scale zero valent irons (nZVIs) synthesized by borohydride reduction

Chemosphere ◽

10.1016/j.chemosphere.2013.11.010 ◽

2014 ◽

Vol 97 ◽

pp. 146-152 ◽

Cited By ~ 32

Author(s):

Heesoo Woo ◽

Junboum Park ◽

Seockheon Lee ◽

Seunghak Lee

Keyword(s):

Borohydride Reduction ◽

Nano Scale ◽

Drying Condition

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