Female components

Bell, T. W. and Meinwald, J. (1986). Pheromones of two arctiid moths (Creatonotos transiens and C. gangis) chiral components from both sexes and achiral female components. Journal of Chemical Ecology 12 385 109. 

Fig. 10.9. Normal pipe threaded joint. Note the tapered threads on both the male and female components. Unlike most other joints, the seal is formed in ihe threaded portion of the joint.

Genetic control of D. melanogaster female components In 1989, Jallon and Pechine found a new type of quantitative hydrocarbon polymorphism specific to D. melanogaster females that affects the positions of double bonds in dienes. Although the double bonds remained at the same relative positions - separated by 2 carbons - they were more frequently located on carbons 5,9 in African flies and on carbons 7,11 in non-African flies. A study of 85 strains from around the world found the African type throughout the whole continent south of the Sahara Desert and in the West Indies and a small number of the Pacific islands. For example, the typical Tai females (Ivory Coast) has 30-40 percent 5,9-heptacosadiene (5,9-HD) and 2-6 percent 7,11-HD. Elsewhere... 

Wood, D.L., Browne, L.E., Ewing, B., Lindahl, K., Bedard, W.D., Tilden, P.E., Mori, K., Pitman, G.B. Hughes, PR. 1976. Western pine beetle specificity among enantiomers of male and female components of an at-tractant pheromone. Science, 192, 896-898. 

FIGURE 4.23 Arrangement of the deep holes in a female component for bumpers, size 2800 X 800 x 1500 mm (left), on the right core carrier on the deep-hole drill... 

Perhaps the easiest option is to control the dispensing carefully to minimise excess adhesive (see Section 8.1.5). However, one option to overcome excess adhesive being pushed outside the joint is to apply the adhesive to the inside of the female component (Figure 5.14). 

Wood, D. L., L. E. Browne, B. Ewing, K. Lindahl, W. D. Bedard, P. E. Tilden, K. Mori, G. B. Pitman, and P. R. Hughes, Western pine beetle Specificity among enantiomers of male and female components of an attractant pheromone. Science 192 896-898 (1976). 

The sex attractant of the female arctiid moth contains among other components a com pound of molecular formula C21H40 that yields... 

Female connection A circular sleeve used to join two duct or pipe components together. The male ends of the two components are inserted into the female connection. 

The typical rotary screw compressor stage is made up of two rotating shafts, or screws. One is a female rotor and the other a male rotor. These two rotating components turn counter to one another (counterrotating). The two rotating elements are designed so that as they rotate opposite to one another their respective helix forms intermesh (see Figure 3-78). As with all rotary compressors, there are no valves. The gas is sucked into the inlet post and is squeezed between the male and female... 

Screws into the female thread in the fitting or hydraulic component. This thread also is tapered. 

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