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from article Bridge maintenance
Under-bridge snooper truck during bridge inspection. (Courtesy Lian Duan)
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from article Bridge maintenance
Repair of concrete I-girder by replacement of damaged concrete.
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from article Bridge maintenance
Strengthening of a steel I-girder by adding new steel plates to flanges.
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from article Bridge maintenance
Strengthening a steel girder by applying external post-tensioning force.
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from article Bridge maintenance
A typical steel jacket for a reinforced-concrete column.
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from article Bridge maintenance
Built-up steel member retrofit. (Courtesy Lian Duan)
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from article Bridge maintenance
Seismic isolation bearing installed in the Antioch Bridge, California. (Courtesy Lian Duan)
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from article Bridge maintenance
A damper installed in the west span of the San Francisco–Oakland Bay Bridge, California. (Courtesy Lian Duan)
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from article Video disk
DVD operational principles.
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from article Process control
Optimum operation of distillation column.
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from article Process control
Estimation of product quality by on-line computer.
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from article Process control
Block diagram illustrating feedback loop around process.
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from article Process control
Feedback and feedforward control on continuous stirred chemical reactor.
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from article Process control
Block diagram of typical feedforward control.
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from article Process control
Closed-loop fuzzy process control.
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from article Process control
Neural network for process modeling and control.
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from article Process control
Local computer system.
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from article Process control
Schematic example of modern distributed control system.
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from article Manganese
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from article Crystal growth
Schematic representation of cross section of crystal at three stages of regular growth.
Image
from article Crystal growth
A model of a crystal surface showing the inequivalent binding sites at which the atoms labeled A and B are located. (General Electric Co.)
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from article Crystal growth
A dendrite. Growth direction is upward for primary protuberances; side branches grow perpendicularly; side branches on the side branches are also seen growing perpendicularly. (After W. Kurz and D. J. Fisher, Fundamentals of Solidification, Trans…
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from article Crystal growth
Hypothetical binary system AB having simple compound formation. (a) Phase diagram. (b) Corresponding partial pressure curves. The extent of the stoichiometry range is greatly exaggerated for illustration.
Image
from article Crystal growth
Czochralski crystal growth and temperature distribution.
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from article Crystal growth
Vertical Bridgman crystal and temperature distribution.
