Active research has been going on to observe and validate the Power Law in physics, computer science, economics, linguistics, sociology, geophysics etc. This paper sets out to test the hypothesis that the Power Law is a feature of water and wastewater pipeline networks in cities. Databases from 30 different municipalities in Norway serve as the […]
Författare
G. VENKATESH and HELGE BRATTEBØ
Nyckelord (Keyword)
Urban water and wastewater pipeline networks, water pipelines, wastewater pipelines, power law,
pipeline stock analysis
Årgång
2011
Nummer
3
Utgåva
Double ring infiltrometers are usually used by engineers, agronomists, and other professionals to estimate the infiltration rate of different soil types. Measurement of surface infiltration rate is necessary for many purposes (describing the soil permeability). In this study, the effect of land use in heavy clayey soil on soil infiltration rate was investigated using double […]
Författare
TAREK SELIM
Nyckelord (Keyword)
Infiltration rate, Double ring infiltrometers, the El-Salam Canal command, Egypt
Årgång
2011
Nummer
3
Utgåva
Contemporary Swedish crisis management system have developed since the 1960s and during this time focus have changed from handling military threats and security of supply, to unpredictable and transboundary crisis. Local governments, responsible for much of the services to the citizens, have to handle the far reaching effect of climate change. At the same time […]
Författare
KATARINA KJELLMAN och PER-ERIK NYSTRÖM
Nyckelord (Keyword)
climate change, consumer, co operation, crisis management, crisis preparedness, drinking water,
National Food Administration, perception, surrounding world, uncertainty
Årgång
2011
Nummer
3
Utgåva
The city of Amritsar today is facing the scarcity of water resources due to change in urbanization and other external externalities. Drinking water supply of city is entirely dependant on ground water resources, and the latter has been increasingly exploited at a rate that exceeds its natural replenishment. Besides this, major portion of water is […]
Författare
WAFA SINGH and DEVESH SHARMA
Nyckelord (Keyword)
Amritsar; Scarcity; water distribution, groundwater; over-exploitation; performance indicators
Årgång
2011
Nummer
3
Utgåva
The present study used results from a ‘paleosimulation’ covering the Baltic Sea basin and the surrounding areas to investigate chaotic properties of temperature, precipitation, and runoff. Three periods between years 1000 and 1929 (1000–1199, 1551–1749, and 1751–1929), representing a warm, a cool, and an intermediate climate episode, respectively, were studied. Time series of annual temperature, […]
Författare
RONNY BERNDTSSON, BELLIE SIVAKUMAR, JONAS OLSSON, and L. PHIL GRAHAM
Nyckelord (Keyword)
Baltic Sea; regional hydrology; temperature; precipitation; runoff; nonlinearity; chaos
Årgång
2011
Nummer
3
Utgåva
This study contains a series of laboratory experiments designed to describe the lateral movement and spatial variability of an infiltrated dye tracer across the capillary fringe of homogenous sand in an aquarium. A combination of image analysis and geoelectrical monitoring was used to track the flow paths of the dye with different hydraulic gradients and […]
Författare
PONTUS POJMARK, BENEDICT RUMPF, TORLEIF DAHLIN, MAGNUS PERSSON, and THOMAS GÜNTHER
Nyckelord (Keyword)
capillary fringe, lateral movement, dye tracer, image analysis, geoelectrical imaging, resistivity,
BERT
Årgång
2011
Nummer
3
Utgåva