997 resultados para Frederick County


Relevância:

20.00% 20.00%

Publicador:

Resumo:

In this paper, taking the northern region of Changxing County for example, with ammonia nitrogen as a pollution assessment index, we used an improved export coefficient method for estimate polluting load of non-point source pollution (NSP) and the social pollution survey data in the study area to estimate point source pollution. By comparing the total pollution output and the national surface water environmental quality standards find that the whole study area achieves the second water quality standard. However, Jiapu Township exceeds the water quality standards seriously because of the superfluous point source pollution. The water quality of other Townships is good. Further analysis showed that different types of land use and proportions in the northern region of Changxing County have a significant impact on the non-point source pollution, the general law is farmland contributes the largest share of the non-point source pollution output, followed by residential area and bare land, besides, with the increase in the proportion of forest and the decrease of farmland and residential area, the non-point source pollution reduces gradually. © 2010 IEEE.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

http://www.archive.org/details/goodbirdindian00goodiala

Relevância:

20.00% 20.00%

Publicador:

Resumo:

There are several thousand souterrains in Ireland, and in Co. Cork to date we have records of the existence of approximately 500. The scientific name souterrain is an antiquarian's term for these monuments. Other names used in the past were Dane's Hole and Rath Cave. Folknames for souterrains range from the nondescript Cave or Poll Talaimh to, in specific cases, Tigh-faoi-thalamh and Carraig-an-tseomra. Dr Anthony Lucas states in a recent paper (2) that probably, during the period in which they were used, one of the common names for a souterrain was Uam (Uaimh in modern Irish).