Results 211 to 220 of about 467,084 (261)

Selection of Artificial Lift

SPE Mid-Continent Operations Symposium, 1999
Abstract Selection of the most economical artificial lift method is necessary for the operator to realize the maximum potential from developing any oil or gas field. Historically the methods used to select the method of lift for a particular field have varied broadly across the industry, including Determining what methods ...
James F. Lea, Henry V. Nickens
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Artificial selection in plants and animals

Proceedings of the Royal Society of London. Series B. Biological Sciences, 1966
Abstract shall be dealing in this paper with the results of selection experiments in plant said animal populations, partly from the point of view of the effectiveness of the selection in actually producing improvement, but rather more in terms of the formation that these experiments give us about the architecture of quantitative ...
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Selection strategies and artificial evolution

Theoretical and Applied Genetics, 1989
Artificial selection results in biolgical changes, creating artificial evolution. When using selection indexes, the artificial evolution depends on the relative economic (or other) weight of traits in the breeding objective, and on the phenotypic and genetic variances and covariances among these traits and the traits recorded in the selection index. As
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Lanthanide-Selective Artificial Channels

ACS Nano
Lanthanides serve as essential elements for modern technology, playing critical roles in batteries, wind turbines, portable electronics, and energy-efficient lighting. Purifying lanthanides from ores and recycling them from end-of-life consumer materials are costly and damaging to the environment due to inefficient separation technologies.
Harekrushna Behera, Tyler J. Duncan, Laxmicharan Samineni, Hyeonji Oh, Ankit Jogdand, Arnav Karnik, Raman Dhiman, Aida Fica, Tzu-Yun Hsieh, Venkat Ganesan, Manish Kumar   +10 more
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Interaction between artificial and natural selection

Theoretical and Applied Genetics, 1975
In order to understand how divergence may appear within a gene pool without limitations on gene flow, experiments were performed to investigate whether the genetic structure of a population may be effective in controlling the response to natural selection.
D, Lorenzo Palenzona, R, Alicchio, G, Rocchetta   +2 more
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A Mathematical Theory of Natural and Artificial Selection.

Bulletin of Mathematical Biology, 1926
Expressions are found for the changes caused by slow selection in populations whose characters are determined by incompletely dominant, multiple, or polyploid factors, and for the equilibria attained in certain of these cases.
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A criterion for the selection of artificial posterior teeth

Journal of Oral Rehabilitation, 1988
SummaryMandibular movement and masticatory performance were evaluated in the edentulous patients with an experimental denture using posterior artificial teeth of different occlusal schemes in order to determine the criterion for the selection of posterior artificial teeth.Lower masticatory performance was observed with non‐anatomic posterior teeth than
K, Yoshida, H, Okane, T, Nagasawa, H, Tsuru   +3 more
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Artificial Selection

2020
null Bhumika, Shailesh Singh
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Forward and reverse response to artificial selection

Theoretical and Applied Genetics, 1976
The effect of t ' generations of reverse selection after t generations of forward selection can be described by expressing the change in the metric mean resulting from reverse selection (R) interms ofthe change in the metric mean due to the previous forward selection (Δx).
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Artificial selection in populations by overlapping generations

Advances in Applied Probability, 1975
In populations of species such as cattle and sheep which are being selected for commercially important quantitative traits like milk yield and growth rate, the breeder cannot avoid overlapping generations since the female reproductive rate is so low. There is a classical theory for predicting the rate of response to selection in continuing programmes ...
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