Rawson d e (9 Ergebnisse)

Spiral-bound. Zustand: Fair. The item might be beaten up but readable. May contain markings or highlighting, as well as stains, bent corners, or any other major defect, but the text is not obscured in any way.

Zustand: New. In English.

Zustand: New. In English.

Zustand: New. In English.

Original publisher's sewn blue paperback, ornamental frontcove with lettering, large 8vo: about the author on first endpaper, frontispieces, xviij, 327pp., [3]pp., illustrations, list illustrations, references, index. Very fine copy - as new.

Original publisher's reen cloth hardback, gilt title on green label spine, pictorial dustjacket, large 8vo: xvi, 292pp. «« Fine copy.

Original publisher's red paper-covered boards, silver lettering spine, pictorial dustjacket, large 8vo: xiv, 362pp., photographs, figures, glossary, appendices, bibliography on subjects index. Fine copy..

Wraps. Zustand: Good. Presumed First Edition, First printing. The format is approximately 8 inches by 10.5 inches. 60 pages (per DD Form 1473). Figures/Maps. Footnotes. Tables. References. Bibliography. Ex-library with usual library markings. This report was prepared for the Director, Defense Nuclear Agency. Abstract: The block motion problem of explosion-induced differential displacement along geologic discontinuities must be better understood to adequately design and site underground strategic facilities that would survive wartime threats. The purpose of this investigation is to review pertinent literature, develop concepts addressing current understanding of explosion-induced block motions, and identify research that could quantify risks for particular sites. The block motion problem is concerned both with those motions driven or dominated by the explosion-induced stress transients and with those motions triggered by the explosions but dominated by the partial relief of pre-stress conditions. Emphasis is given to the problem of triggered motions because this is the aspect of greatest uncertainty and because the limited evidence is suggestive that differential slip can be triggered at considerable distance from the explosion, depending greatly upon in-situ stress conditions. Methods for avoiding, relieving, absorbing, and resisting explosion-induced block motions are addressed and it is concluded that quantifying the block motion problem appears difficult but not hopeless. The threat of block motion , defined to encompass all explosion induced differential displacement along geologic discontinuities , is an important consideration in siting and designing underground strategic facilities for maximum system survival. A Predictive capability does not presently exist that can satisfactorily assure avoidance of the block motion problem by site selection , relief from the problem by insitu stress alteration , or assure that the design of an underground facility can absorb a block motion of uncertain magnitude. The principal reason for this situation is that there is insufficient knowledge of insitu stress field conditions and failure criteria associated with faults and other possible weakness discontinuities that are the likely locations of block motion responses to explosively induced stress transients. It is clear that the focus of developing a predictive capability should be to set lower and upper bounds on the credible block motion displacements . The motions of concern are those directly induced by explosions interacting with 'imbalanced' or excessive prestress conditions within the earth. The block motion problem also includes differential displacements induced by explosions in the rupture and spall regions of surface and near-surface bursts where induced stresses overwhelm either balanced or irnbalanced prestress conditions. Emphasis in this review has been directed at identifying the risk of explosions triggering block motions in prestressed media and examining ways of minimizing the problem. The triggering problem is of special interest because there is greater uncertainty of the risk and more distant displacements are credible for a given explosion threat than would be the case for conditions where stored tectonic stress is small. The major deficiency in assessing the risk of explosion triggered block motion is that the threats are surface or near-surface bursts , and all known triggered block motions are associated with contained explosions.…

Single Issue Magazine. Zustand: Good. First Edition. Profusely illustrated with black and white photos and illustrations. Features: In Search of the Lost Oases - Part I of a wonderful trip across the desert from Sollum, on the Mediterranean, to El Obeid, in the Sudan, mostly through unexplored territory, with photos; Smugglers Three - Poaching swan eggs; Azizun the Dancing-Girl - Sir George MacMunn owned an uncanny little "frog-girl" in India; The Odyssey of the "Olga" - A trip from Nome, Alaska to Seattle ended up taking over three months!; Photo of sixty-foot-tall statue of the god Gomateswara being annointed with oil on the great hill of Sravanbelgola; Left Behind - A young white woman is left behind at a lonely wayside station in the heart of Rhodesia; Lost in the Heart of Peru - Part I - G.M. Dyott was abandoned by his guide in the trackless upper reaches of the Amazon and endured an ordeal to return home - with photos; The Thirteenth Sample - A nerve-trying adventure in the depths of an abandoned mine in Northern Mexico; A Bird-Hunter in the Wilds - G.L. Bates describes a seven-month journey in the remote Cameroon country of Central Africa - with great photos; The Voice in the Darkness - A tragic story of an encounter between a bootlegger and the law during prohibition in Brigson, Alberta; "Sinbad the Sailor" - An American university professor becomes a swindler in Winnipeg; Tiger Tales - Tales from Assam and Sumatra by W.J. Brands; What Was It? - Patrick Brown encountered a mysterious monster in South Africa which appeared to be a survivor of some prehistoric species; The Crocodile Charmers of Java - Javanese witch-doctors 'make love to them, induce them to follow them like pet dogs, and lead them to their deaths'; The Two Strangers - Dr. C.E.Ellis thought he knew a 'bunco man' but then he met two harmless prospectors. 88 pages plus 16 pages of nostalgic ads. Clean and unmarked with light wear. A nice copy of this great vintage issue.; 8vo - over 7¾" - 9¾" tall; Wide World Magazine, October 1925, Rosita Forbes, Kufra, Rohlfs, Senussi, Siwa, Sayed Idris Sennusi, Qayi-m-qana, In Search of the Lost Oases, Sahara desert, Sollum, El Obeid, Sudan, Smugglers Three, Swan eggs, Swan Egg Poaching, Azizun the Dancing-Girl. Illustrated by Woodville, R. Caton; Gillett, F.; Leigh, Conrad; York,W.G.; Sutcliffe, Norman; Somerfield, T.; Eyles, D.C.; Brock, H.M.; Holmes,Fred; Briault, S.; Prater, E.; Goss, G.W.; Peddie, Tom; Lloyd, Stanley (illustrator).…