scholarly journals Study of low-temperature effect on the fracture locus of a 420-MPa structural steel with the edge tracing method

2018 ◽  
Vol 41 (8) ◽  
pp. 1649-1661 ◽  
Author(s):  
S. Tu ◽  
X. Ren ◽  
T.A. Kristensen ◽  
J. He ◽  
Z. Zhang
Keyword(s):  
Low Temperature ◽  
Temperature Effect ◽  
Structural Steel ◽  
Fracture Locus ◽  
Edge Tracing ◽  
Tracing Method

scholarly journals GENETIC EVIDENCE FOR INTERACTION BETWEEN NONHOMOLOGOUS PROTEINS IN YEAST AND A CASE OF SUPPRESSION AT THE HIS1 LOCUS

Genetics ◽  
1980 ◽  
Vol 94 (2) ◽  
pp. 327-339 ◽  
Author(s):  
Richard Snow
Keyword(s):  
Enzyme Activity ◽  
Low Temperature ◽  
Enzymatic Activity ◽  
Temperature Effect ◽  
Conformational Change ◽  
Minimal Medium ◽  
Genetic Evidence ◽  
Structural Genes ◽  
Wild Type ◽  
Is Strain

ABSTRACT The HIS1 and THR4 loci are the structural genes for phosphoribosyl-ATP pyrophosphorylase and threonine synthetase, respectively. The allele his1-IS has no enzyme activity at 30", but does have activity at 15" provided the cell contains the wild-type THR4 allele or a suppressing allele at another locus, designated SUP(his1-1S). Under these conditions, cells with the hisl-IS mutation are capable of growth on minimal medium at 15". Three kinds of reversions of a hisl-IS thr4 sup(his1-IS) strain to histidine prototrophy have been obtained: (1) his1-IS locus reversions to HIS1 that restore growth without added histidine at 30", (2)  thr4 reversions to THR4 that simultaneously eliminate the requirement for threonine and restore the low-temperature effect on the his1-IS allele, and (3)mutations from sup to SUP. The SUP allele is not an ochre suppressor, and it is not linked to either HISI, THR4 or a centromere. It may represent a missense suppressor. I t is proposed that the effect ofTHR4 is caused by aggregation of the wild-type threonine synthetase with defective his1-IS monomers, causing a favorable conformational change in the histidine protein that restores limited enzymatic activity. This can be regarded as a case of complementation between nonhomologous proteins.

scholarly journals Low-temperature effect on the impact and flexural behaviour of basalt composite laminates

2020 ◽  
Vol 249 ◽  
pp. 112607 ◽  
Author(s):  
M.R. Ricciardi ◽  
I. Papa ◽  
F. Impero ◽  
A. Langella ◽  
V. Lopresto ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Effect ◽  
Composite Laminates ◽  
Flexural Behaviour ◽  
The Impact

FREQUENCY SPECTRA OF FREE LATTICES AND PARTICLE SIZE EFFECTS ON THE HEAT CAPACITY OF SOLIDS

1955 ◽  
Vol 33 (6) ◽  
pp. 1079-1087 ◽  
Author(s):  
D. Patterson
Keyword(s):  
Particle Size ◽  
Heat Capacity ◽  
Low Temperature ◽  
Temperature Effect ◽  
Size Effects ◽  
Continuum Model ◽  
Free Boundaries ◽  
Frequency Spectra ◽  
Optical Modes ◽  
Effect Of Particle Size

The effect of particle size on the heat capacity of solids has been investigated using lattices with free boundaries as models. A monatomic lattice shows a low temperature effect associated with the acoustic modes. This can be compared with results obtained from a continuum model. With a diatomic lattice, however, an effect is also associated with the optical modes and is apparent at higher temperatures. The possibility that this latter effect can explain some recent experimental results is examined.

Methanol dehydrogenation and oxidation on Pt 1–X Ni X /CNTs at low temperature: Effect of Ni addition

2016 ◽  
Vol 99 ◽  
pp. 437-442 ◽  
Author(s):  
J.R. Rodriguez ◽  
S. Fuentes Moyado ◽  
M.T. Oropeza-Guzman ◽  
S.B. Aguirre ◽  
José Romo-Herrera ◽  
...  
Keyword(s):  
Low Temperature ◽  
Temperature Effect ◽  
Methanol Dehydrogenation ◽  
Ni Addition

Low temperature effect on production of ampicillin and cephalexin in ethylene glycol medium with immobilized penicillin acylase

2006 ◽  
Vol 41 (9) ◽  
pp. 1924-1931 ◽  
Author(s):  
Carolina Aguirre ◽  
Paola Opazo ◽  
Mineri Venegas ◽  
Ruby Riveros ◽  
Andrés Illanes
Keyword(s):  
Low Temperature ◽  
Ethylene Glycol ◽  
Temperature Effect ◽  
Penicillin Acylase ◽  
Immobilized Penicillin Acylase

Vanadium supported on carbon-coated monoliths for the SCR of NO at low temperature: effect of pore structure

2004 ◽  
Vol 50 (4) ◽  
pp. 235-242 ◽  
Author(s):  
E Garcı́a-Bordejé ◽  
L Calvillo ◽  
M.J Lázaro ◽  
R Moliner
Keyword(s):  
Low Temperature ◽  
Pore Structure ◽  
Temperature Effect ◽  
Scr Of No ◽  
Carbon Coated
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