49951, 1891-05-05, C*** (Docteur)

2017 ◽  
Keyword(s):  
05 C

Effect of Shock Loading on the Microstructure of Uniloy 326

1974 ◽  
Vol 32 ◽  
pp. 504-505
Author(s):  
K. P. Staudhammer ◽  
L. E. Murr
Keyword(s):  
Grain Size ◽  
Shock Loading ◽  
Current Investigation ◽  
Two Phase ◽  
05 C ◽  
Shock Deformation ◽  
Heat Treated

The effect of shock loading on a variety of steels has been reviewed recently by Leslie. It is generally observed that significant changes in microstructure and microhardness are produced by explosive shock deformation. While the effect of shock loading on austenitic, ferritic, martensitic, and pearlitic structures has been investigated, there have been no systematic studies of the shock-loading of microduplex structures.In the current investigation, the shock-loading response of millrolled and heat-treated Uniloy 326 (thickness 60 mil) having a residual grain size of 1 to 2μ before shock loading was studied. Uniloy 326 is a two phase (microduplex) alloy consisting of 30% austenite (γ) in a ferrite (α) matrix; with the composition.3% Ti, 1% Mn, .6% Si,.05% C, 6% Ni, 26% Cr, balance Fe.

scholarly journals TMOD-05. C-MYC OVEREXPRESSION INDUCES CHOROID PLEXUS PAPILLOMAS THROUGH A T-CELL MEDIATED INFLAMMATORY MECHANISM

2019 ◽  
Vol 21 (Supplement_2) ◽  
pp. ii122-ii122
Author(s):  
Ashirwad Merve ◽  
Xinyu Zhang ◽  
Nicola Pomella ◽  
Anaelle Dumas ◽  
Silvia Marino
Keyword(s):  
T Cell ◽  
Choroid Plexus ◽  
05 C ◽  
Inflammatory Mechanism ◽  
Choroid Plexus Papillomas

scholarly journals A 4-chromatic graph with a special plane drawing

1979 ◽  
Vol 28 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Nicholas Wormald
Keyword(s):  
05 C 15 ◽  
Subject Classification ◽  
05 C 10 ◽  
05 C ◽  
Special Plane

AbstractA graph is found which is 4-chromatic, has girth 5, and can be obtained by taking a setSof points in the plane and joining two of the points whenever their distance is 1. The points inSare not found explicitly, but their existence is demonstrated by use of a computer.Subject classification (Amer. Math. Soc. (MOS) 1970): 05 C 15, 05 C 10.

Long- and short-term effects on intake of pelleting a roughage for sheep

1974 ◽  
Vol 19 (1) ◽  
pp. 77-86 ◽  
Author(s):  
J. F. D. Greenhalgh ◽  
G. W. Reid
Keyword(s):  
Body Weight ◽  
Dry Matter ◽  
Dry Matter Intake ◽  
Short Term ◽  
05 C ◽  
Digestive Organs ◽  
Dry Matter Digestibility ◽  
Ad Libitum ◽  
Chopped Grass

SUMMARY1. Four groups of eight castrated male lambs, weighing initially about 37 kg, were fed ad libitum for 18 weeks on: C, chopped dried grass throughout; P, pelleted grass throughout; C/P (or P/C), the two forms alternated every 3 weeks; or C + P, both forms on offer.2. Daily dry-matter intake (g/kg W0·75) was 58·2 for treatment C and 814 for treatment P; thus the long-term difference in intake was 40%. However, in the alternated sheep, dry-matter intake was 53·6 g/kg W0·75 for chopped grass and 86·5 g for pelleted; this short-term difference (61%) was significantly greater than the long-term difference. Dry-matter intake for treatment C+P was 84·9 g/kg W0·75; after the first week, chopped grass comprised only 10% of this. Dry-matter digestibility coefficients (%) were: C, 740; P, 61·4 and C+P, 62·0.3. The sheep were killed in week 19 and the dimensions of digestive organs and their contents were adjusted to an animal of 50 kg empty body weight. The weight of the reticulo-rumen was greater for C (1·30 kg) than for P (0·94) or C+ P (1·05), C/P and P/C being inter-mediate (1·15). The water-filled volume of the rumen was proportional to weight, except that C/P (alternated sheep finishing on pelleted grass) had low volumes. Reticulo-rumen fill was greater for C (7·28 kg) than for P (3·97) or C+ P (4·53), P/C (5·90) and C/P (4·34) being intermediate. There were no other significant differences in organs or contents.4. Gains in empty-body weight (g/day) were: C, 112; P, 181; C/P and P/C, 126; C + P, 195.

scholarly journals Hamiltonian cycles in certain graphs

1978 ◽  
Vol 26 (1) ◽  
pp. 89-98 ◽  
Author(s):  
Katherine Heinrich ◽  
W. D. Wallis
Keyword(s):  
05 C 35 ◽  
Subject Classification ◽  
Hamiltonian Cycles ◽  
05 B 30 ◽  
05 C

AbstractIt is observed that arrays which arise in the scheduling of tournaments exist if and only if there are Hamiltonian cycles in certain graphs. The graphs are generalizations of those which arise in the “Footballers of Croam” problem. It is proven that such Hamiltonian cycles exist in infinite classes of the graphs.Subject classification (Amer. Math. Soc. (MOS) 1970): 05 C 35, 05 B 30.

The Reactions of Mosquitoes to Temperature and Humidity

1938 ◽  
Vol 29 (2) ◽  
pp. 125-140 ◽  
Author(s):  
R. C. Muirhead Thomson
Keyword(s):  
High Temperature ◽  
High Temperatures ◽  
Close Relation ◽  
05 C ◽  
Culex Fatigans ◽  
New Type ◽  
Effects Of Temperature ◽  
Humidity Range ◽  
Increased Activity ◽  
Humidity Reaction

Reactions to Temperature1. The reactions of Culex fatigans to temperature were studied by means of a new type of temperature gradient apparatus based on the same principle as the humidity alternative chamber.2. Females at different stages were exposed to a range of 5°C. at different parts of the temperature scale, and it was found that the sensitivity was very much greater at high temperatures than at low ones.3. The most striking feature of behaviour at all stages was the strong avoidance of high temperatures. This was strongest in the hungry females, less strong in the blood-fed females and those with mature ovaries, and least strong in the newly emerged females.4. Newly emerged females showed avoidance of high temperature below 30°C., but not below 25°C. They also showed a weak avoidance of low temperature. At 29°C. they were sensitive to a difference of 1°C. or a gradient of 0·05°C. per cm.5. Hungry females showed a strong avoidance of high temperature below 25°C., the reaction still taking place below 15°C. There was no avoidance of low temperatures.6. Blood-fed females and those with mature ovaries showed a strong avoidance of high temperatures below 25°C., but below 20°C. they were unaffected by temperature differences. Blood-fed females were sensitive to a difference of 1°C. or a gradient of 0·05°C. per cm. at 23°C.7. Except in the case of newly emerged females there was quite a close relation between the reactions to temperature and the effects of temperature.8. Reasons are given for regarding the temperature reactions of Culex as of first importance in determining the behaviour of the mosquitoes when seeking a resting place.Reactions to Humidity9. The reactions of Culex fatigans to humidity were studied by means of the alternative chamber, in a dark constant temperature room at 25°C.10. At all stages the strongest humidity reaction was an avoidance of high humidities above 95 per cent. R.H.11. This reaction was strongest in the blood-fed females and those with mature ovaries, less strong in the newly emerged females, and weakest in the hungry females.12. The avoidance of high humidity was strongest when there was a difference of 20 per cent. R.H., such as a 78–98 per cent. R.H. gradient. Near saturation point all stages except hungry females were sensitive to a difference of 1 per cent. R.H. or a gradient of ·05 per cent. R.H. per cm. Hungry females at this point were not sensitive to a difference of less than 3 per cent. R.H.13. All stages showed a slight but regular avoidance of low humidities, provided a sufficiently large humidity range, not less than 40 per cent. R.H., was present.14. Hungry females, despite the onset of mortality due to desiccation, showed no sharp avoidance of low humidities which were rapidly fatal to them.15. Between 30 and 85 per cent. R.H. all stages were unaffected by humidity differences of as much as 40 per cent. R.H.16. The avoidance of high humidities was equally strong in blood-fed females at 20, 25, and 30°C. At 35°C., greatly increased activity eliminated the reaction.17. The reaction was much less intense in daylight and disappeared altogether after sundown.18. Reasons are given for considering that the measure of humidity which determines the behaviour of the mosquito is relative humidity and not saturation deficiency, even though the latter is the important one in the water relations of insects.

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