u s navy department bureau ships (10 résultats)

Etat : Good. Good condition.

Etat : fair to good. Quarto, approx. 75, 3-hole punched sheets in folder, illus., tables, figures (some fold-out), index, folder worn & soiled: small tears, creases.

Wraps. Etat : fair. 394 pages. Wraps. Illustrations. Glossary. Index. Covers soiled and creased: small edge tears/chips, raised stamp on title page. Entire document, including covers, wrinkled because of water damage--no pages stuck together. Topics covered include elements of radar, functional components of radar system, detailed study of self-synchronized long-wave radar system, detailed study of externally synchronized microwave radar system, timers, transmitters, antenna systems, receivers, indicators, primary power and control circuits, and data transmission and servo systems. Presumed First Edition, First printing thus.

Wraps. Etat : Fair. Presumed First Edition, First printing. 474 pages. Wraps. Illustrations. Figures. Glossary. Index. Pages slightly darkened, ink name on title page. Small tear at spine. Covers soiled and stained. Ex-library with usual markings. Topics covered include introduction to radar, review of electrical fundamentals, nonsinusoidal waves and transients, vacuum tubes and applications, power-supply circuits, amplifiers and oscillator circuits, special circuits, cathode-ray tubes, cathode-ray oscilloscope circuits, transmission lines, waveguides and cavity resonators, ultra-high-frequency generators, and antennas.

Wraps. Etat : fair to good. 474 pages. Wraps. Illustrations. Figures. Glossary. Index. Pages are slightly darkened, "Official Use Only" on title page crossed out in black marker. Binding cracked at p. 249, 2" tear on p. 249 (very minor loss of text), covers discolored, worn, and creased, ink name on front cover. Topics covered include introduction to radar, review of electrical fundamentals, nonsinusoidal waves and transients, vacuum tubes and applications, power-supply circuits, amplifiers and oscillator circuits, special circuits, cathode-ray tubes, cathode-ray oscilloscope circuits, transmission lines, waveguides and cavity resonators, ultra-high-frequency generators, and antennas. Presumed First Edition, First printing thus.

Etat : fair to good. Quarto, approx. 150, 3-hole punched sheets in folder, illus., tables, fold-out figures, index, folder worn: small tears, creases.

Etat : as is (loss of text pp. 21-24). Quarto, 166, wraps, illus., figures, tables, index, loss of text pp. 21-24, pencil underlining on a few pgs, pencil notes fr flylf & fr cov.

Wraps. Etat : Good. Later printing (per date on page 474). v, [1], 474 pages. Wraps. Illustrations. Figures. Glossary. Index. Original price stamped at bottom of front cover. Topics covered include introduction to radar, review of electrical fundamentals, nonsinusoidal waves and transients, vacuum tubes and applications, power-supply circuits, amplifiers and oscillator circuits, special circuits, cathode-ray tubes, cathode-ray oscilloscope circuits, transmission lines, waveguides and cavity resonators, ultra-high-frequency generators, and antennas. Radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them. The targets may be aircraft, ships, automotive vehicles, and astronomical bodies, or even birds, insects, and rain. Besides determining the presence, location, and velocity of such objects, radar can sometimes obtain their size and shape as well. What distinguishes radar from optical and infrared sensing devices is its ability to detect faraway objects under adverse weather conditions and to determine their range, or distance, with precision. Radar underwent rapid development during the 1930s and '40s to meet the needs of the military. It is still widely employed by the armed forces, where many technological advances have originated. At the same time, radar has found an increasing number of important civilian applications, notably air traffic control, weather observation, remote sensing of the environment, aircraft and ship navigation, speed measurement for industrial applications and for law enforcement, space surveillance, and planetary observation. Radar typically involves the radiating of a narrow beam of electromagnetic energy into space from an antenna (see the figure). The narrow antenna beam scans a region where targets are expected. When a target is illuminated by the beam, it intercepts some of the radiated energy and reflects a portion back toward the radar system. Since most radar systems do not transmit and receive at the same time, a single antenna is often used on a time-shared basis for both transmitting and receiving. A receiver attached to the output element of the antenna extracts the desired reflected signals and (ideally) rejects those that are of no interest. For example, a signal of interest might be the echo from an aircraft. Signals that are not of interest might be echoes from the ground or rain, which can mask and interfere with the detection of the desired echo from the aircraft. The radar measures the location of the target in range and angular direction. Range, or distance, is determined by measuring the total time it takes for the radar signal to make the round trip to the target and back (see below). The angular direction of a target is found from the direction in which the antenna points at the time the echo signal is received. Through measurement of the location of a target at successive instants of time, the target's recent track can be determined. Once this information has been established, the target's future path can be predicted. In many surveillance radar applications, the target is not considered to be "detected" until its track has been established.

Stiff covers. Etat : fair to good. Quarto, approx. 200 pages. 3-hole punched sheets in stiff covers, illus., figures, tables, glossary, bibliography, index, covers stained, fore-edge stained. Testing electronic equipment. Topics covered include testing in general, test equipment and measurements, testing--techniques and practices, and preventive maintenance and the repair of test equipment.

Etat : fair to good. Quarto, 32 + 236, sheets inserted in 3 hole binder (1 binder screw missing), illus. (some fold-out), tables, references, appendix, index. Edges of some pages worn and small tears, some darkening to text, binder scuffed, scratched, and discolored, some ink underlining on a few pages. Title printed on binder is "Damage Control Book, U.S. Attack Cargo Ship AKA 53-63. Restricted, Serial No. 216." Contains two documents in one looseleaf binder. The first document is Part I of "Damage Control BookNavships (688)" (32 pages) on principles of stability and damage control; topics covered include transverse stability of ships, and specific instructions AP110-119. The second document is "Introduction to Engineering and Damage Control, With Notes on Ship Construction and Installations" (236 pages). Topics covered include hull design and terminology, warship construction, subdivision, hull systems, moments, stability of ships, effects of flood, damage control organization and procedure, damage control procedure, chemical attack, Marine Engineering plants, main drive engines--steam, auxiliary machinery, diesel power plants, and supplementary notes. Chapter 12 of the second document is "Notes on Fire Fighting" (pp. 142-147). This chapter discusses general procedure, types of fires, fog nozzles, foam, carbon dioxide extinguishers (and other types of extinguishers), fire hose, rescue mask, and safety precautions in enclosed spaces, among other topics.