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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.
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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.
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from article Crystal growth
An isotherm in the aluminum-gallium-arsenic (Al-Ga-As) ternary phase diagram. Each corner represents a pure element and each point within the diagram a unique composition, all at a given temperature. Each composition on the liquidus is in…
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from article Crystal growth
Molecular-beam epitaxy apparatus.
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from article Crystal growth
Cross section of a gallium arsenide–aluminum arsenide (GaAs–AlAs) single crystal with individual gallium arsenide and aluminum arsenide layers each about 5 × 10−10 m thick.
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from article Food manufacturing
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from article Food manufacturing
Average composition of the United States diet dry weight per capita per day. Prior sanctioned substances were specifically approved by FDA or USDA for use in food prior to the passage of the Food Additives Amendment in 1958.
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from article Food manufacturing
Rank ordering of food ingredients by per capita annual disappearance.
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from article Food manufacturing
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from article Food manufacturing
Flow chart of the fiber-spinning technique used to prepare food analogs. (After N. R. Lockmiller, Increased utilization of protein in foods, Cereal Sci. Today, 18(3):77–81, 1973)
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from article Food manufacturing
Typical high-temperature extrusion process for production of a meat or seafood analog. (After O. B. Smith, in L. D. Hill, ed., Textured Vegetable Proteins, World Soybean Research, Interstate Printers and Publishers, 1976)
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from article Food manufacturing
Front view diagram of a horizontal dough mixer.
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from article Food manufacturing
Small integrated bread make-up system. A mass of bread dough is placed in the hopper of the divider (right) which cuts it into pieces of uniform weight. The rounder (center foreground) receives the rough pieces from the divider, forms them into…
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from article Food manufacturing
Tunnel oven. Loaf-size dough pieces enter the oven at left background and are carried through the baking chamber on a continuous metal belt which serves as the hearth. The baked loaves exit at right foreground. Ordinary pan bread would require sets…
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from article Food manufacturing
Schematic for production of shredded wheat biscuits. (After G. A. Leveille and M. A. Uebersax, Fundamentals of food science for the dietician: Wheat products, dietetic currents, vol. 7(1), pp. 1–8, Ross Laboratories, Columbus, Ohio, January–February…
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from article Food manufacturing
Small-scale abrasive dehulling machine in (a) upright and (b) dumping positions. (Plant Biotechnology Institute, National Research Council of Canada, Saskatoon)
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from article Food manufacturing
Flow chart for the preparation of fish meal, condensed fish solubles, and fish oil from whole fish by using the wet process. (Zapata Haynie Corp.)
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from article Food manufacturing
Common market forms of fresh or frozen fish.
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from article Food manufacturing
Processing steps in the canning of tuna.
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from article Food manufacturing
Schematic sectional view of a fish flesh-separating machine to produce minced fish.
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from article Food manufacturing
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from article Food manufacturing
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from article Risk assessment and management
Risk management and assessment involves solving problems such as the lifetime risk of occupational exposure to radiation from nuclear power reactors. (Copyright © Philip Lange/Shutterstock.com)
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from article Risk assessment and management
Risk analysis, assessment, and management.
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from article Heterodonta
Common heterodont bivalves. (Credit: Ronald V. Dimock, Jr.)
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from article Heterodonta
Common heterodont bivalves. (Credit: Ronald V. Dimock, Jr.)
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from article Stripping (chemical engineering)
Stripping column and accessory equipment.
