منابع مشابه
Carotenoids in Niphargus casimiriensis Skalski (Amphipoda) from artesian wells
Carotenoids are some of the commonest pigments found in nature. They are produced only by plants, both autotrophic and heterotrophic, whereas animals obtain them through the food they eat. These pigments may, however, in the latter undergo further conversion as a result, for example, of oxidation. Various functions have been ascribed to carotenoids ranging from their participation in the photos...
متن کاملconstruction of relief wells under artesian flow conditions at dam toes: engineering experiences from karkheh earth dam, iran
we report engineering experiences from the critical task of relief well installation under high artesian flow conditions at the downstream toe of the karkheh earth dam, iran. due to the establishment of excessive uplift pressure at the downstream toe of the karkheh dam, installation of a series of new relief wells was considered to permanently relieve part of these pressures. the mentioned upli...
متن کاملCircular No. 78 - Annual Summary of Publications
S OF SCIENTIFIC AND TECHNICAL PAPERS2 Reprint 107. THE DRAINAGE OF LAND OVERLYING ARTESIAN BASINS. By W. Gardner. O. W. Israelsen, and W. W. McLaughlins • In SOIL SCIENCE, Vol. 26, No.1 (July, 1928), pp. 33-45. The methods of hydrodynamics are used in an effort to calculate the influence of drain tile and of wells on the water-logged condition of fine-textured .oils due to hydrostatic pressure in
متن کاملWATER FROM DIFFERENT SOURCES USED FOR THE IRRIGATION OF VEGETABLES TO BE MARKETED: RESEARCH ON Cryptosporidium spp., Giardia spp., AND COLIFORMS IN PARANA, BRAZIL.
The aim of this work was to compare, from a parasitological ( Cryptosporidium spp. and Giardia duodenalis), bacteriological (total and thermotolerants coliforms) and physicochemical perspective, water sources used for drinking and irrigation of vegetables intended to be sold for human consumption. From January 2010 to May 2011, samples of different water sources from vegetable producing propert...
متن کاملWell-Construction and the Preservation of the Purity of Well-Water
By Surgn.-Capt. P. IIeiiiu, m.d., f.r.s.e., d.p.h. Camb., Fellow, Santy. Inst., Fellow of British Inst., Pub. Health, Health Officer, Chudderghat Municipality. 1 iieiie are three varieties ot wells, shallow or superficial, deep and artesian. The last mentioned may be considered a variety of deep well, and we will dispose of it with a few words, for the reason that artesian wells have, up to dat...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1885
ISSN: 0036-8733
DOI: 10.1038/scientificamerican09121885-8074supp