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from article Nose cone
Flow about slender body.
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from article Nose cone
Flow about blunt body.
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from article Cogeneration system
Cogeneration topping-cycle system.
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from article Cogeneration system
Cogeneration bottoming-cycle system.
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from article Nuclear reactor
Boiling-water reactor. (1) The core inside the reactor vessel creates heat. (2) A liquid-steam mixture is produced when very pure water (reactor coolant) moves upward through the core, absorbing heat. (3) The liquid-steam mixture leaves the top of…
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from article Nuclear reactor
Pressurized-water reactor. (1) The core inside the reactor vessel creates heat. (2) Pressurized water in the primary coolant loop carries the heat to the steam generator. (3) Inside the steam generator, heat from the primary coolant loop vaporizes…
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from article Nuclear reactor
A nuclear plant, using a pressurized-water reactor. The PWR keeps water under pressure so that it is heated, but does not boil. Water from the reactor and the water in the steam generator that is turned into steam never mix. In this way, most of the…
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from article Nuclear reactor
High-temperature gas-cooled reactor. (Credit: Atomic Industrial Forum, Inc.)
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from article Nuclear reactor
Loop-type liquid-metal fast breeder reactor. In some designs, referred to as pool-type, the heat exchanger and primary sodium pump are located with the core inside the pressure vessel. (Credit: Atomic Industrial Forum, Inc.)
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from article Armature
A rotor armature of of a direct-current generator or motor. (General Electric)
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from article Armature
A stator armature of an ac induction motor in a motor repair shop. (General Electric)
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from article Cardiovascular system
Computerized artwork of the human cardiovascular system, including the heart, lungs, and major arteries and veins. (Credit: Science Photo Library RF/Getty Images)
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from article Cardiovascular system
Diagram of the heart and major vessels of a fetus just before birth. Small arrows within the liver indicate alternative blood routes by way of hepatic sinusoids. (Credit: Based on an original drawing by B. M. Patten; copyright © McGraw-Hill…
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from article Cardiovascular system
Single type of circulatory system. (Credit: Based on an original drawing by C. K. Weichert; copyright © McGraw-Hill Education)
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from article Cardiovascular system
Double type of circulatory system in a vertebrate having a four-chambered heart (ventral view). (Credit: Based on an original drawing by C. K. Weichert; copyright © McGraw-Hill Education)
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from article Cardiovascular system
Illustration of the human cardiovascular system, which involves pulmonary circulation and systemic circulation. Red vessels transport oxygenated blood; blue vessels transport deoxygenated blood; and purple vessels are involved in gas exchange.…
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from article Hematologic disorders
Myelophthisic anemia results from a space-occupying lesion in the bone marrow, which hinders hematopoiesis (the process by which the cellular elements of the blood are formed). In this photomicrograph, the bone marrow space is expanded, and the…
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from article Hematologic disorders
Scanning electron micrograph of (top) an elongated, flattened sickle cell and (bottom) a normal red blood cell. (Credit: Callista Images/Image Source/Getty Images)
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from article Hematologic disorders
Colored scanning electron micrograph of round leukocytes from a patient with leukemia. (Credit: Steve Gschmeissner/Science Photo Library)
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from article Branch circuit
Typical electrical wiring system. Branch circuits are those portions of system beyond the final overcurrent device approved for branch-circuit protection.
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from article Allometry
Allometric lines for the mass of some organs across mammal species. (These are best-fit lines: individual species may lie above or below them.) Note that the skeleton is disproportionately heavy in large species (positive allometry), whereas the…
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from article Allometry
Three different types of allometry. Each curve shows the growth allometry of organ size in a different species. The adults of each species show static intraspecific allometry. The circles indicate a particular stage of the life history (for example,…
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from article Engineering geology
Diagram of a typical landslide monitoring instrumentation. (Credit: USGS)
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from article Engineering geology
Rock-physics laboratory instrumentation for testing triaxial shear strength. Shearing stresses tend to separate portions of the rock (or soil) mass. Faults and folds are examples of shear failures in nature. In engineering structures, every…
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from article Engineering geology
Geologic map that can be used to identify geologic hazards and for land-use planning. (Credit: USGS)
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from article Flight controls
Simplified diagram of a typical primary flight-control system, governing attitude and direction. ( After C. H. Chatfield, C. F. Taylor, and S. Ober, The Airplane and Its Engine, 5th ed., McGraw-Hill, 1949)
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from article Flight controls
Typical airplane control systems of varying degrees of complexity, illustrated for the case of longitudinal (elevator or stabilizer) control. Similar systems are used for the other control surfaces. (a) Mechanical control system. (b) Mechanical…
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from article Flight controls
Examples of active control. (a) Active control to allow reduced static stability. Change in angle of attack and associated change in lift produce an upsetting moment. (b) Active maneuver load control. (c) Active control for gust load alleviation. (d…
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from article Blowpipe
Glassblower blowing into a blowpipe to shape molten glass. (Credit: Hero Images/Getty Images)
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from article Tin
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from article Tin
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from article Electric filter
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from article Electric filter
Passive, lumped-element filters. (a) RC low-pass filter. (b) LC band-pass filter.
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from article Electric filter
Ladder structure. (a) Overall structure with alternating series and shunt arms. (b) LC circuit whose impedance contains both a finite-frequency pole and a zero. Such circuits are used in the series and shunt arms of the ladder structure.
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from article Electric filter
Mechanical filter.
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from article Electric filter
Single-amplifier filters. (a) Low-pass Sallen-Key filter. (b) Low-pass, infinite-gain, single-amplifier filter. (c) Cascade of second-order filter realizations.
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from article Electric filter
Multiple-amplifier filters. (a) State-variable (KHN) filter. (b) Tow-Thomas filter.
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from article Electric filter
Simulated-inductor realization of fifth-order high-pass filter. (a) RLC prototype, normalized for cutoff frequency of 1 rad/s (0.159 Hz). (b) Direct active-RC realization.
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from article Isoelectric point
Titration of alanine with sodium hydroxide (NaOH), showing the course of pH with added fractional equivalents. The four arrows show, from left to right, the pKa [½ cations: NH3+(CH3)COOH, and ½ zwitterions: NH3+(CH3)CHCOO−], the pl (all…
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from article Isoelectric point
Course of the charges carried by lysine (pKa = 2.18) molecules in dilute aqueous solution with pH during a titration with alkali. Shown are the net charge, going from +2 at low pH to +1 between pH 4.5 and 6.5, the isoelectric point at pH 9.74, the…
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from article Sewage treatment
Street water drainage pipe emptying water out into nature. (Credit: Shutterstock /Brian Legate)
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from article Sewage treatment
Wastewater treatment through the secondary process.
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from article Sewage treatment
Grit chamber. (Credit: U.S. EPA)
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from article Sewage treatment
Trickling filters. (Credit: U.S. EPA)
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from article Sewage treatment
Activated sludge treatment. (Credit: U.S. EPA)
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from article Fungi
Porcini mushrooms (Boletus edulis) are members of the Basidiomycota division of Fungi. (Credit: Digoarpi/Shutterstock)
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from article Fungi
Spore types (upper illustrations) and structures of parent mycelia (lower illustrations) in fungi.
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from article Fungi
Sporangia of saprophytic Rhizopus. (Credit: Richard Gross; copyright © McGraw-Hill Education)
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from article Fungi
Sexual mechanisms in fungi: (a) gametic copulation; (b) gametangial copulation; (c) gamete-gametangial copulation; and (d) somatic copulation.
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from article Fungi
Colorized scanning electron micrograph of brewer's yeast cells (Saccharomyces cerevisiae). This fungus consists of single vegetative cells, and small daughter cells can be seen budding off from the larger cells. Brewer's yeast is used in the…
