نتایج جستجو برای: trace

تعداد نتایج: 67071  

Journal: :international journal of environmental research 0
a.h. bu-olayan pob 5969, department of chemistry, kuwaituniversity, safat13060, kuwait b.v. thomas pob 5969, department of chemistry, kuwaituniversity, safat13060, kuwait

this study assesses the effect of major trace metals levels in wastewater discharges and sedimentfrom twenty four permanent and five semi-permanent wastewater drain outlets into the kuwait coast. theeffect of trace metals levels released from untreated wastewater discharges to euchelus asper, gastropod was also determined. results showed high trace metal levels in e. asper tissues, followed by ...

Journal: :journal of sciences, islamic republic of iran 2011
n abbassi

the kashkan formation (paleocene to middle eocene), consists of conglomerate, sandstone, and siltstone in the zagros folded zone, southwest iran. type of the sedimentary facies, architectural elements and trace fossils show that kashkan deposits were formed in a low sinuosity braided stream system, with north to south flow direction. the formation displays coarsening-upward succession reflects ...

B. Navidshad, F. Mirzaei Aghjeh Gheshlagh S. Jabbari

There were no considerable up to date on the trace element requirements of commercial poultry in recent years in despite of the progress in their performance traits. One of the more prevalent problems in modern broiler production system which could be attributed to the trace mineral inadequacy is skeletal disorders. Zinc, is an essential trace element which acts as a co-factor in several metalo...

B. Navidshad, F. Rezaei M. Mohammadrezaei M. Zarei, P. Esmaeilinasab R. Kachoei R. Valizadeh S. Jabbari S. Karamati

Since 1994 till today a few up to date have been made on the NRC (1994) recommendations for trace mineral requirements of broilers. The high prevalence of skeletal disorders in modern broilers could be a consequence of the uncoordinated growth rate and mineral nutrition. The commercial companies of broiler production often use a huge safety margin of trace minerals in feed formulation, which wi...

ژورنال: فیزیک زمین و فضا 2016

Land seismic data acquisition in most of cases suffers from obstacles in fields which deviates geometry of the real acquired data from what was designed. These obstacles will cause gaps, narrow azimuth and offset limitation in the data. These shortcomings, not only prevents regular trace distribution in bins, but also distorts the subsurface image by reducing illumination of the target formatio...

Journal: :Theoretical Computer Science 1998

Journal: :Proceedings of the American Mathematical Society 1991

Journal: :journal of mining and environment 2013
n mathiyazhagan natarajan d

an ex-situ experiment to assess the metal extractive potential of fourteen agriculture plants (vigna unguiculata, gossypium hirsutum, jatropha curcas, etc.) was conducted on magnesite mines which had above permissible levels of cadmium and lead. there was no much difference in the total chlorophyll a and b, carbohydrate and protein contents in the plants grown in the mining soil and adjacent co...

Journal: :Journal of Geophysical Research: Atmospheres 2003

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