scholarly journals Observations on the relationship of the phagocytosis and electrolytes, with special reference to the influences of Mg..and Ca..upon the sensitized bacteria

1949 ◽  
Vol 4 (3) ◽  
pp. 153-158
Author(s):  
Yosio SAWAI
Keyword(s):  
Special Reference ◽  
Relationship Of ◽  
The Relationship

scholarly journals THE VULNERABILITY OF BALSAM FIR TO SPRUCE BUDWORM ATTACK IN NORTHWESTERN ONTARIO, WITH SPECIAL REFERENCE TO THE PHYSIOLOGICAL AGE OF THE TREE

1958 ◽  
Vol 34 (4) ◽  
pp. 405-422 ◽  
Author(s):  
J. R. Blais
Keyword(s):  
Special Reference ◽  
Tree Mortality ◽  
Spruce Budworm ◽  
Balsam Fir ◽  
Site Quality ◽  
Physiological Age ◽  
Northwestern Ontario ◽  
Relationship Of ◽  
The Relationship ◽  
Relative Vulnerability

The annual defoliation by spruce budworm and the progressive mortality of balsam fir trees were recorded in nine study plots in northwestern Ontario over a period of 11 years. In addition to general observations on the relationship of tree mortality to defoliation, some information was obtained on the relative vulnerability of the trees with respect to size, physiological age (flowering condition), and vigor (site quality).

The Regenerative Cycle: An Efficiency Basis having Special Reference to the Number of Feed Water Heating Stages

1941 ◽  
Vol 146 (1) ◽  
pp. 5-19 ◽  
Author(s):  
H. S. Horsman
Keyword(s):  
Special Reference ◽  
Feed Water ◽  
Final States ◽  
Boiler Plant ◽  
Worked Example ◽  
The Difference ◽  
Relationship Of ◽  
The Relationship ◽  
Regenerative Cycle ◽  
The Ideal

The efficiency of the regenerative cycle may be defined as the ratio of the heat converted into work (in British Thermal Units per pound of steam) to the heat supplied to 1 lb. of steam in the boiler plant. Where feed heating is employed, however, the heat converted into work is less than the adiabatic heat drop as calculated from the initial and final states of expansion. The difference between these quantities is termed “unavailable heat” in the paper, and the efficiency is therefore given as the ratio of the adiabatic heat drop less the unavailable heat, to the heat supplied to 1 lb. of steam in the boiler plant. The object of the paper is to illustrate the advantage derived from working in terms of unavailable heat. Values of this quantity are given, and the author provides a worked example showing their use. Appendixes I and II deal with investigations of the case in which the number of feed heating stages is infinitely great, i.e. the conditions for the ideal efficiency. The relationship of the ideal efficiency to other efficiencies corresponding to various finite numbers of feed heating stages is indicated.

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