Access to services and infrastructure is generally available nationwide in Germany (drinking water supply, sewage treatment, mail, telecommunications, transport). The quality of these services, however, differs from region to region. One field which needs improvement is sewage treatment where, for economic reasons, the number of decentralised systems is growing. The call for nationwide access t...

hargraves-samani method is one of the methods for calculating plant evapotranspiration that needs minimum meteorological data. in order to evaluate et-hs model in determining sugar beet crop water demand in isfahan, an experiment was conducted at research field of department of agriculture, khorasgan branch, islamic azad university, isfahan, iranin 2005. the study was based a randomized complet...

AIMS An evaluation was made of the prevalence of Legionella species in hot water distribution systems in the city of Bologna (Italy) and their possible association with bacterial contamination (total counts and Pseudomonadaceae) and the chemical characteristics of the water (pH, Ca, Mg, Fe, Mn, Cu, Zn and Total Organic Carbon, TOC). METHODS AND RESULTS A total of 137 hot water samples were an...

sustainability of water supply networks should be based on the risks of water hammer phenomenon. the purpose of this study is to provide a new approach to the analysis of water hammer phenomenon in the water supply network. by conventional methods, the damage because of water hammer is estimated based on the maximum pressure at nodes. however, during this phenomenon continuation and changing of...

Greene, John L.; Siegel, William C. 1994. The status and impact of state and local regulation on private timber supply. General Technical Report RM-255. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Forest and Range Experiment Station. 22 p. State and local regulatory enactments that affect private forest management are identified and summarized. The results o...

Introduction. The coverage of sanitation and access to safe drinking water in Ethiopia especially in Wolaita Sodo town are not well studied. Therefore, the main objective of this study was estimating access to drinking water supply, sanitation, and hygiene facilities in Wolaita Sodo town, southern Ethiopia, in reference to national coverage. Methods. A community based cross-sectional study desi...

Because non-industrial private forests (NIPFs) comprise over 60% of forestland, NIPF owners may substantially affect timber supply and ecosystem quality. A dynamic model shows that NIPF owners may maximize timber income despite receiving utility from nontimber goods. The model links landowners' behavior to ecosystem management by introducing the ecosystem as an alternative source of nontimber g...