Influence of temperature on the lifetime of electronically excited uranyl ion: IV. Effect of isotope enrichment in low-temperature crystallization of partially deuterated aqueous solutions of sulfuric acid

Rheological behaviors of high acyl (HA) gellan are not well understood partially because of its relatively late commercialization compared to low acyl gellan. The objective of this study was to investigate the effect of temperature (5-30 °C), calcium (0, 1 and 10 mM) and gellan concentrations (0.0044-0.1000% w/v) on the flow behaviors of high acyl gellan aqueous solutions using rheological tests. Gellan solutions with 0 or 1 mM added Ca++ exhibited shear thinning behavior at gellan concentrations above 0.0125%. The influence of temperature on apparent viscosity (shear rate, 100 s-1) of gellan solutions can be described with an Arrhenius relationship. The apparent viscosity of gellan solution at low concentrations was more sensitive to temperature changes. The addition of Ca++ led to a decrease in flow resistance for a dilute gellan solution (<0.0125%), but an increased resistance for a relatively concentrated gellan solution (>0.0125%).

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Low-Temperature Crystallization of Forsterite and Orthoenstatite

Journal of the American Ceramic Society ◽

10.1111/j.1151-2916.1999.tb01718.x ◽

2004 ◽

Vol 82 (1) ◽

pp. 22-26 ◽

Cited By ~ 26

Author(s):

Takayuki Ban ◽

Yutaka Ohya ◽

Yasutaka Takahashi

Keyword(s):

Low Temperature ◽

Low Temperature Crystallization ◽

Temperature Crystallization

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The influence of temperature on the absorption of water by seeds of hordeum vulgare in relation to the temperature coefficient of chemical change

Proceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character ◽

10.1098/rspb.1912.0082 ◽

1912 ◽

Vol 85 (582) ◽

pp. 546-553 ◽

Cited By ~ 20

Keyword(s):

Hordeum Vulgare ◽

Aqueous Solutions ◽

Temperature Coefficient ◽

Chemical Change ◽

Experimental Conditions ◽

Influence Of Temperature ◽

Suitable Medium ◽

Influence Of Temperature On

Attention has previously been directed by one of us to the existence of a differential septum enclosing the seeds of Hordeum (barley). When the seeds are immersed in aqueous solutions of most electrolytes, and of many non-electrolytes, this covering behaves as a very efficient differential septum, water alone entering the seeds under the attractive influence of the finely granulated contents. The rate at which the water enters is considerably affected if substances are dissolved in it, being increased by some and diminished by others; it is also markedly dependent on the temperature of the water or solution in which the seeds are immersed. Variations of the rate at which water enters with alterations of the experimental conditions are presumably due mainly to changes in the water, and the seeds of Hordeum would thus appear to be a very suitable medium for the investigation of the nature of the changes produced in water by the presence of dissolved substances or by alterations of temperature.

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