compaction


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Related to compaction: Soil compaction

compaction

 [kom-pak´shun]
a complication of labor in twin births in which there is simultaneous full engagement of the leading fetal poles of both twins, so that the true pelvic cavity is filled and further descent is prevented.

com·pac·tion

(kom-pak'shŭn),
The process following the third cleavage division of the zygote during which the blastomeres maximize their contact with each other by polarization and adhesion, forming a compact ball that is held together by tight junctions; compaction segregates the inner cells of the blastocyst that form the embryo from the outer cells that form the fetal part of the placenta.
[L. compactio, fr. com-pingo, pp. com-pactus, to press together]

compaction

/com·pac·tion/ (kom-pak´shun)
1. a complication of labor in twin births in which there is simultaneous full engagement of the leading fetal poles of both twins, so that the lesser pelvis is filled and further descent is prevented.
2. in embryology, the process during which blastomeres change their shape and align themselves tightly against each other to form the compact morula.

com·pac·tion

(kŏm-pakshŭn)
Act of compression or squeezing together.
[L. compactio, fr. com-pingo, pp. com-pactus, to press together]

compaction (kompak´shən),

n the act of compacting or the state of being compact.

compaction

packing together as in twin births when both fetuses engage the pelvis at the same time, in prolonged constipation in dogs, and in compaction of endochondral bone as a part of normal bone modeling.
References in periodicals archive ?
The compression mold used to make the crystallized sheet, was however not really appropriate for powder compaction as it contained a cavity with a covering metal plate, and not a male part to press the powder in the cavity.
Besides the difference in root inherent traits, the vetiver roots also has elastic cortex, particularly aerenchyma sandwiched between the soil and vascular cylinder, which would be able to alleviate the radial pressure from soil compaction.
Key companies in the compaction machines market include XCMG Co.
We applied both dynamic compaction and dynamic replacement techniques," says Shouman.
Bullock P, Newman ACD, Thomason AJ (1985) Porosity aspects of the regeneration of soil structure after compaction.
Both treatments occurred in the early summer months (May to July), a period early enough to avoid extreme fire hazard conditions but late enough so that soils are not saturated with moisture -- operating when soils are relatively dry is a best management practice for avoiding compaction.
These conditions increase the compaction effort with a specific energy of about 2.
The results of his investigation showed that both the swell potential and swell pressure increases as the compaction energy is increased.
The stream compaction (stream reduction) is an important algorithmic function, a primitive building block, useful in many algorithms that benefit from the massive parallelism.
Key words: Aggregate size, soil compaction, bulk density, hydraulic conductivity
The sensor measures changes in sand compaction, which is affected by the mechanics of the vibration system, including motor and linkage wear, changes in the sand properties (fine content and loss on ignition percentage), and environmental changes (temperature and humidity).