The relationship of acid-soluble glycogen to yeast flocculation

1975 ◽  
Vol 21 (10) ◽  
pp. 1608-1613 ◽  
Author(s):  
G. B. Patel ◽  
W. M. Ingledew

A relationship between yeast flocculation and intracellular acid-soluble glycogen has been established which has been substantiated using flocculation mutants (mutants with altered capacities to flocculate) as well as a normal strain of Saccharomyces carlsbergensis. Sound evidence exists to implicate physiological differences in carbohydrate metabolism (glycogen storage) to this physical property of brewing significance.

1924 ◽  
Vol 70 (2) ◽  
pp. 333-343 ◽  
Author(s):  
Frank N. Allan ◽  
B. R. Dickson ◽  
J. Markowitz

2013 ◽  
Vol 372 ◽  
pp. 261-264 ◽  
Author(s):  
Yasuyuki Kato ◽  
Masahito Ueda

The purpose of this research is to examine the physical property of the catheter, which made of soft nylon resin and is reinforced with thin stainless wires called braid. The effect of braid on the mechanical property of the catheter is revealed by investigating the relationship of the stress relaxation and the relative angle between the braid and the principal axis of stress under combined loading of bending and torsion. Inthe first place, in order to investigate the phenomenon of stress relaxation under combined loading, the experiments under single stage step strain have been carried out by changing the ratio of bending and torsion, and the relation between the coefficient of viscosity and the relative angle of the braid is revealed. In the second place, the experiment under two-stage step strain are conducted by changing the order of bending and torsion, and the effect of these loading histories on the visco-elastic properties is examined. Moreover, the numerical simulation under two-stage step strain is carried out by using the estimated coefficient of viscosity, and in this paper, the validity of this analytical model is confirmed by comparing with the experimental results.


1924 ◽  
Vol 18 (5) ◽  
pp. 1170-1184 ◽  
Author(s):  
Sahib Singh Sokhey ◽  
Frank Nathaniel Allan

2019 ◽  
Vol 31 (6) ◽  
pp. 2395-2401
Author(s):  
Yuan Tian ◽  
Qiuliang Zhang ◽  
Xuan Liu

Abstract Compacted soil has an adverse effect on plant roots and affects water and nutrient availability. However, different degrees of soil compaction may be suitable for growth and development of different understory species. This study determined whether soil compaction could explain characteristics of 10 different Dahurian larch (Larix gmelinii Rupr.) forest types in the Daxing’anling area. The relationship of soil compaction to soil depth was also studied. Forty-five tests were conducted on soil compaction of the 10 forest types with multiple comparisons, of which five showed no significant differences. At different soil depths, there were significant differences in soil compaction among forest types. The correlation between the degree of soil compaction and depth was positive and significant. The Larix gmelinii—shrub forest type, L. gmelinii—herb forest type, and L. gmelinii—swamp forest type were significantly different in soil compaction according to soil depth. This research indicates that, as a physical property, soil compaction may be used to explain forest distribution spatial variabilities.


Author(s):  
Guohui Qu ◽  
Yuanlin Meng ◽  
Anqi Shen ◽  
Yuxin Guo ◽  
Yikun Liu ◽  
...  

The development effect of water flooding in ultra-low permeability reservoir was poor due to its poor physical property and high shale content, the experimental study of air flooding which help to complement producing energy was carried out. Based on the Accelerating Rate Calorimeter experimental results, the crude oil of N block in L oilfield can produce low-temperature oxidation reaction, which was the basic condition of air flooding. Three groups of experiment natural cylinder core were designed for oil displacement, water flooding and air flooding were used respectively, and the relationship of differential pressure, oil recovery, injection capacity with injection volume was investigated. It has been showed on the result that the recovery efficiency improved sharply than water flooding, the effect of depressurization and augmented injection was obvious, and the air displacement was validation.


1940 ◽  
Vol 34 (7) ◽  
pp. 1002-1007 ◽  
Author(s):  
David Paton Cuthbertson ◽  
Alexander McCutcheon ◽  
Hamish Nisbet Munro

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