____-----__-___-___..______-_--_-__________ Introduction_______________________________________ Frequency of overbank flow.__________________________ Formation of a typical flood plain_____._______________ The characteristics of point bars._________________ Sediments forming a typical point bar_________ Process of formation and elevation of the surface of point bars.____________________________...

the aim of this study is to assess the concentration of nitrate in groundwater resources of the kordkandi-duzduzan plain and to evaluate the vulnerability of the groundwater using avi and gods methods. kordkandi-duzduzan plain is located in east azarbaijan province in the northwest of iran, which groundwater is important for drinking and agriculture in the region due to scarcity of suitable sur...

in this paper, the artificial neural network (ann) approach is applied for forecasting groundwater level fluctuation in aghili plain,southwest iran. an optimal design is completed for the two hidden layers with four different algorithms: gradient descent withmomentum (gdm), levenberg marquardt (lm), resilient back propagation (rp), and scaled conjugate gradient (scg). rain,evaporation, relative...

in this paper, the artificial neural network (ann) approach is applied for forecasting groundwater level fluctuation in aghili plain,southwest iran. an optimal design is completed for the two hidden layers with four different algorithms: gradient descent withmomentum (gdm), levenberg marquardt (lm), resilient back propagation (rp), and scaled conjugate gradient (scg). rain,evaporation, relative...

JOHN D. STOECKLE and GEORGE ABBOTT WHITE, Plain pictures ofplain doctoring. Vernacular expression in New Deal medicine and photography, Cambridge, Mass., and London, MIT Press, 1985, 4to, pp. xxiii, 250, illus., £21.50. EMANOEL LEE, To the bitter end. A photographic history of the Boer War 1899-1902, London, Viking, 1985, 4to, pp. xii, 226, illus., £12.95. Books on the history of medicine, with...

background: although experiments on water quality are time consuming and expensive, models are often employed as supplement to simulate water quality. artificial neural network (ann) is an efficient tool in hydrologic studies, yet it cannot predetermine its results in the forms of maps and geo-referenced data. methods: in this study, ann was applied to simulate groundwater quality and geographi...

groundwater quality management is one of the most important issues in many arid and semi-arid regions, including iran.nitrate (no3-) is one of the most common anions contaminating groundwater. this study aimed to range nitrateconcentrations in water resources in bahabad plain in yazd province. to evaluate the nitrate data in this descriptive study,260 nitrate samples from 13 wells in bahabad we...

groundwater is a major source of water for domestic, industrial, and agricultural sectors in many countries. the main objective of this research was to provide an overview of present groundwater quality using parameters such as calcium, magnesium, sodium, chloride, sulfate, ph, and electrical conductivity (ec) in the mehran plain, ilam province using gis and geostatistical techniques. a total o...

Seismic refraction profiles recorded layer. Crustal subsidence and periodic basaltic along the eastern Snake River Plain (ESRP) in southeastern Idaho during the 1978 YellowstoneSnake River Plain cooperative seismic profiling experiment are interpreted to infer the crustal velocity and attenuation (Q-i) structure of the ESRP. Travel-time and synthetic seismogram modeling of a 250 km reversed ref...

BACKGROUND Ankle fractures, especially those resulting from external rotation mechanisms are associated with injury to the distal tibiofibular syndesmosis. Some authors have recommended performing CT scanning after open ankle surgery to evaluate the reduction of syndesmosis. In this current study, we aimed to investigate the sensitivity of plain radiography in diagnosing syndesmosis malreductio...