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51.
Cyclic pore pressure response of low plastic fines is examined with regard to factors influencing overall behavior of such soils under repeated loads. A model for pore pressure generation under repeated loads and another model for relationship between cyclic pore pressure and straining are proposed. The models are developed in consideration of an extended database generated through a comprehensive literature review. The models are evaluated based on the comparisons between predicted and measured pore pressure responses.  相似文献   
52.
The Kuwaiti‐Danish 2009 excavations on Failaka produced new evidence for the dating of the Dilmun temple in Tell F6. The affinities of this temple to the Barbar temples in Bahrain are emphasised, whereas the hypothesis of a Syrian‐inspired temple tower is questioned.  相似文献   
53.
Inferences about settlement structure play an important role in explanations of social and political change in Late Prehistoric eastern North America, but ethical and logistical challenges posed by extensive horizontal excavations mean that archaeologists must develop low cost, minimally invasive methods for investigating key properties of village structure. There are two important components of most villages in the region: 1) the peripheral distribution of middens; and 2) the size and location of formal communal spaces or plazas, each of which leaves traces in soil chemistry. In shallowly buried, plowed village sites where artifacts have been physically displaced, the chemical signature of middens may be more resistant to disturbance and provide an enduring signature of ancient settlement structure. We conducted a systematic soil phosphorus survey at the Reinhardt Site (33PI880) in central Ohio, the primary occupation of which occurred during the Late Prehistoric Period (ca. AD 1200-1450), to test for the presence and approximate size of a central plaza and the shape and distribution of peripheral midden deposits. Soil samples from the modern plowzone (N = 131) were analyzed for Mehlich II extractable phosphorus using molybdate colorimetry. The interpolated phosphorus distributions indicate a clear ring midden approximately 90 m across with an internal plaza that is roughly 30 m × 40 m. Artifact distributions from a shovel test pit survey and interpolations of plowzone magnetic susceptibility measurements identify the location of the village but are ambiguous with regards to village size and do not clearly distinguish the central plaza. Our results suggest that systematic surveys of soil phosphorus are a rapid, minimally invasive, and inexpensive method for generating data on the size and shape of villages and their plazas.  相似文献   
54.
Four different boundary conditions consisting of fixed nodes, motion of roller only in the z or the x direction, and equivalent motion of two side boundaries were applied with a finite element code to simulate seismic behavior of two foundation conditions consisting of dry loose and dense sands. Comparing numerical results with physical model tests indicates that data obtained from the finite element code when considering soil nonlinearity with a sand model based on the tij concept have acceptable agreements with those from dynamic centrifuge tests regardless of the boundary conditions. The results from the boundary conditions of roller in the x direction and equivalent motion of two side boundaries agree well with the experimental data in wave peaks. The two side boundary conditions also keep the ground middle undisturbed and provide the results that are similar to those obtained from the wave amplification experimental data. For numerical simulations of centrifuge model tests, the side boundary condition with roller in the x direction is recommended because of low computation time and high simulation quality.  相似文献   
55.
Engineering geological mapping was carried out at a scale of 1:25000 in the city of Bam, located in southeastern Iran, to provide engineering geological information as a base for seismic microzonation of the city. In this study, Seismic Refraction and Vertical Seismic Profiling (VSP) surveys were employed along with boreholes in order to identify the characteristics of subsurface material in Bam city. A number of different kinds of maps of the city were prepared consisting of Iso-depth, Iso-velocity, and Iso-Poisson's Ratio maps. The study also involves trial pitting and continuous core recovery, in-situ, and laboratory tests. Borehole data, index properties of soils, and standard penetration test results were used to assess subsurface conditions. Geophysical and geotechnical data were combined to simulate geotechnical boreholes and prepare engineering geological maps to provide basic data for seismic geotechnical microzonation to facilitate in the reconstruction of the city of Bam.  相似文献   
56.
EUROPE

Our Rivers. By J. W. Kempster. 8 1/2 × 5 1/2. Pp. xi+300. 20 plates. London: Geoffrey Cumberlege, Oxford University Press, 1948. 25s.

The Outer Hebrides in Relation to Highland Depopulation. By William Adams Hance. 8 1/2 × 5 1/2. Pp. xv+148. 9 maps. Bibliography. [Ph.D. Thesis, Columbia University.] Lithoprinted. New York : William A. Hance, 1949.

St. Columba and Hinba and Na h'Eileacha Naomha. The Whirlpool of Corrievreckan. By the Hon. Arthur Murray, C.M.G., D.S.O. 8 1/2 × 5 1/2. Pp. 28. g illustrations. Chart and sketch map. Privately printed, 1949.

A Hundred Tears in the Highlands. By Osgood Hanbury Mackenzie of Inverewe. Edited with an additional chapter by M. T. Sawyer of Inverewe. 8 1/2 × 5 1/2. Pp. 221. 9 illustrations. Map. London : Geoffrey Bles Ltd. New and revised edition, 1949. 12s 6d.

The Buried Barony. By Alasdair Alpin MacGregor. 8 1/2 × 5 1/2. Pp. xv+163. Frontispiece. 54 illustrations. London : Robert Hale Ltd., 1949. 12s 6d.

Cairnhill. By Hamilton More Nisbett and the late Stair Carnegie Agnew. 8 1/2 × 5 1/2. Pp.215. 18 illustrations. Edinburgh: The Moray Press, 1949. 16s.

Bedfordshire. By Laurence Meynell. 8 1/2 × 5 1/2. Pp. xv+366. 49 illustrations. Sketch map. [The County Books.] London : Robert Hale Ltd., 1950. 15s.

The West of England. By Ruth Manning‐Sanders. 8 1/2 × 5 1/2. Pp. viii+152. 117 illustrations. End‐paper sketch maps. [The Face of Britain Series.] London : B. T. Batsford Ltd., 1949. 12s 6d.

Midland England. A Survey of the Country between the Chilterns and the Trent. By W. G. Hoskins. 8 1/2 × 5 1/2. Pp. viii+120. 108 illustrations. End‐paper sketch maps. [The Face of Britain Series.] London : B. T. Batsford Ltd., 1949. 12s 6d.

Severn Stream. By Brian Waters. 8 1/2 × 5 1/2. Pp. 206. 17 illustrations. London : J. M. Dent and Sons Ltd., 1949. 15s.

Ulster. By Hugh Shearman. 8 1/2 × 5 1/2. Pp. xii+427. 49 illustrations. Sketch map. [The County Books.] London : Robert Hale Ltd., 1919. 15s.

Ireland. Edited by L. Russell Muirhead, M.A. (Cantab.). 6 1/4 × 4. Pp. Ixxii+296+ (atlas) 31. 15 maps and plans. [The Blue Guides.] London : Ernest Benn Ltd. Second edition, 1949. 15s

Dublin: A Study in Environment. By John Harvey. 8 1/2 × 5 1/2. Pp. xii+116. 161 illustrations. End‐paper maps. ["British Cities” Series.] London: B. T. Batsford Ltd., 1949. 15s.

Iceland Yesterday and To‐day. By Horace Leaf, F.R.G.S. 8 1/2 × 5 1/2. Pp. viii+205. 18 Photographs. Coloured map. London : George Allen and Unwin Ltd., 1949. 15s.

The Viking Lands. By Gordon Young. 8 1/2 × 5 1/2. Pp.154. 17 illustrations. Endpaper sketch maps. London : Evans Brothers Ltd., 1949. 9s 6d.

The Norway Tear Book, 1950. Edited by Sverre Mortensen and A. Skøien. 7 1/2 × 5. Pp. 419. Frontispiece. Oslo : Johan Grundt Tanum, 1950.

ASIA

A Handbook for Travellers in India and Pakistan, Burma and Ceylon, including the Portuguese and French Possessions and the Indian States. Edited by Sir Gordon Hearn, C.I.E., D.S.O. 7 1/4 × 4 3/4. Pp. cxxiv+792. Maps and plans. London : John Murray. Sixteenth edition, 1949. 42s.

Robert Knox in the Kandyan Kingdom. Selected and edited by E. F. C. Ludowyk. 7 1/2 × 5. Pp. xxviii+175. 4 photographs by the late Lionel Wendt. End‐paper map. London : Geoffrey Cumberlege, Oxford University Press (Indian Branch), 1948. Rs 6, or 9s.

White Stranger : Six Moons in Celebes. By Harry Wilcox. 8 1/2 × 5 1/2. Pp. 384. 24 illustrations. Sketch map. London : William Collins, Sons and Co. Ltd., 1949. 16s.

MADAGASCAR

Madagascar. By Hubert Deschamps. 7 1/2 × 5 1/2. Pp.188. 16 photographs. 3 sketch maps. Paris : Éditions Berger‐Levrault, 1947. 165 fr.

AMERICA

Histoire de la Grande Pêche de Terre‐Neuve. By Robert de Loture. 7 1/2 × 4 3/4. Pp.255. 1 fig. 2 sketch maps. Paris : Librairie Gallimard, 1949. 325 fr.

Grassland Historical Studies : Natural Resources Utilization in a Background of Science and Technology. Vol. 1. Geology and Geography. By James C. Malin. 8 1/2 × 5 1/2. Pp. xii+377. 3 illustrations. 2 maps. [Lithoprinted.] Lawrence, Kansas : James C. Malin, 1950. $2.50.

South America called Them : Explorations of the Great Naturalists Charles‐Marie de la Condamine, Alexander von Humboldt, Charles Darwin, Richard Spruce. By Victor W. von Hagen. 8 1/2 × 5 1/2. Pp. xiv+401. 28 illustrations. London: Robert Hale Ltd., 1949. 21s.

A Naturalist in the Gran Chaco. By Sir John Graham Kerr, F.R.S. 8 1/2 × 5 1/2. Pp. xi+235. 24 plates. 2 sketch maps. Cambridge: University Press, 1950. 21s.

OCEANIA

Island Administration in the South West Pacific: Government and Reconstruction in New Caledonia, the New Hebrides, and the British Solomon Islands. By Cyril S. Belshaw. 8 1/2 × 5 1/2. Pp. viii+158. 4 maps. London and New York : Royal Institute of International Affairs, 1950. 12s 6d.

Fijian Village. By Buell Quain. Introduction by Ruth Benedict. 9×6. Pp. xvii+459. 17 plates. 7 sketch maps. Glossary. Chicago, Illinois : University of Chicago Press, 1947. London: Cambridge University Press. 27s 6d.

Polynesian Trade Wind. By Sverre Holmsen. Translated from the Swedish by Joan Bulman. 8 1/2 × 5 1/2. Pp. 186. 29 illustrations. End‐paper sketch maps. London : James Barrie Publishers Ltd., 1949. 15s.

The Kon‐Tiki Expedition : By Raft across the South Seas. By Thor Heyerdahl. Translated from the Norwegian Kon‐Tiki Ekspedisjonen (1948) by F. H. Lyon. 8 1/2 × 5 1/2. Pp. 235. Frontispiece. 18 plates. London : George Allen and Unwin Ltd., 1950. 12s 6d.

POLAR REGIONS

We Live in the Arctic. By Constance and Harmon Helmericks. 9×6. Pp. xiv+321. 3 diagrams. 30 illustrations. Decorative end‐paper sketch maps. London : Hodder and Stoughton Ltd., 1949. 20s.

OCEANOGRAPHY

The Sea and its Mysteries. By John S. Colman. 7 1/2 × 5. Pp.285. 17 plates. 36 figs. Map. London : G. Bell and Sons Ltd., 1950. 12s 6d.

Les Richesses de la Mer.: Technologie biologique et océanographique. By Noël Boudarel. 10 × 6 1/2. Pp. 549, 1006 figs. [Encyclopédie Biologique, XXIX.] Paris : Paul Lechevalier, 1948. 1500 fr.

Sea‐Shore Life of Britain. By L. R. Brightwell, F.Z.S., F.R.H.S., M.B.A. 8 1/2 × 5 1/2. Pp. xii+116. 94 illustrations. [The British Nature Library.] London: B. T. Batsford Ltd. [1947], 1948. 12s 6d.

BIOGEOGRAPHY

The Badger. By Ernest Neal, M.Sc. (Lond.). 8 × 5 1/2. Pp.xv+158. 12 figs. 1 colour photograph by the author. 29 black‐and‐white photographs. [New Naturalist Monographs, 1.] London : William Collins, Sons and Co. Ltd., 1948. 12s 6d.

EDUCATIONAL

Modern World Geography—Economic and Social. By Earl C. Case and Daniel R. Bergsmark. 8 1/2 × 5 1/2. Pp. xii+746. Diagrams, sketch maps, photographs. 6 coloured maps. Philadelphia : J. B. Lippincott Company. Revised edition, 1949. 21s.

A Regional Economic Geography. By Samuel Newton Dicken, 10 1/2 × 7 1/2. Pp. xii+516. 263 figs. End‐paper maps. Boston, Massachusetts : D. C. Heath and Company, 1949. London : George G. Harrap and Co. Ltd. 25s.

GENERAL

The Voyages of Captain James Cook round the World. Selected from his Journals and edited by Christopher Lloyd. 8×5. Pp. xxiii+384. End‐paper maps. London : The Cresset Press Ltd., 1949. 9s 6d.  相似文献   
57.
Trenchless technology is well accepted for repairing critical underground lifelines with minimal ground surface disruption. The cured in place pipeline (CIPP) lining process is an application of trenchless technology that involves the installation of fiber reinforced composites inside existing pipelines. The uncertain performance of pipelines reinforced with CIPP linings in seismic areas is a barrier to the adoption of this method for seismic retrofit. This article evaluates experimentally the transient seismic response of pressurized pipelines reinforced with fiber reinforced polymer (FRP) linings. The test results show that reinforced pipelines can accommodate very high intensity ground motions and can provide substantial seismic strengthening in addition to efficient rehabilitation of aging underground infrastructure.  相似文献   
58.
Many Neolithic and Bronze Age cultural layers and pile fields embedded in sediments at the shorelines of pre-alpine lakes in France, Switzerland, Germany, Austria, and Italy (in part UNESCO World Heritage Sites), are threatened by littoral erosion which is partly caused by human agency. Based on measurements of the wave field at four prehistoric sites on Lake Constance (Germany, Switzerland) we discuss the role of passenger ship navigation. We also review the stability and ecological compatibility of archaeological preservation control fills on the littoral platform of Lake Constance, and we make some recommendations for future preservation measures.  相似文献   
59.
This article examines the way in which the town of Dunwich, Suffolk, once the capital of a Saxon kingdom and the sixth largest town in England, has constructed its identity from its long history of experiencing coastal erosion. Now as a small village, Dunwich has built a cultural heritage industry devoted to presenting absence to its visitors and residents, through many diverse forms: historiography, archaeology and the material culture displayed and commodified in the Dunwich Museum. Local pride in this history of disappearance runs strong, as was demonstrated when a proposed monument to the lost town was rejected by village residents. Connecting this sense of identity both to critical investigations into the nature of loss, transience and disappearance, as well as to the future of local and global environmental processes, this article considers whether a site whose construction of loss-as-identity should be allowed to survive past its natural lifespan – especially one that, given the process of erosion involved, can be measured. If the dominant cultural logic at a site tends towards absence rather than presence, I here ask what justifications exist for forestalling that identity in the name of conservation and preservation.  相似文献   
60.
The August 30, 1986 (MW ?=?7.1) and May 30, 1990 (MW ?=?6.9) Vrancea intermediate-depth earthquakes, despite their almost similar magnitudes, have produced very different spectral contents as shown by the strong ground motions recorded in Bucharest and its surroundings. The differences can be attributed to different epicentral distances and to different values of the stress drop. The characteristics of the seismic ground motions recorded in Bucharest area in the 1986 and 1990 seismic events are discussed in the context of (a) the source characteristics of the two earthquakes and (b) the local soil conditions in Bucharest. Furthermore, an attempt is made to determine the soil factors S defined in EN 1998-1 EN 1998-1. 2004. Design of Structures for Earthquake Resistance – Part 1: General Rules, Seismic Actions and Rules for Buildings, CEN.  [Google Scholar] for the Bucharest area, based on the strong ground motion dataset recorded during the two seismic events.  相似文献   
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