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Easterbrook, M. Journal of Horticultural Science , 71 6 : — Eichhorn, K. Gholami, M. Proceeding of the 4 th Horticultural Science of Iran, Mashhad , pp. Euphytica , 33— Experimental and Applied Acarology , 95— Hochwender, C.
M, Cha, D. Ecological Entomology , — Howe, G. Direct defenses in plants and their induction by wounding and insect herbivores. In : Schaller A. Induced plant resistance to herbivory. Springer Science, pp. Hoy, M. Introduction to Integrated Mite Management. CRC Press, pp.
Irigoyen, J. Physiologia Plantarum , 67— Ishaaya, I. The Journal of Experimental Botany , 20 65 : — Kiyazev, S. Russian Agricultural Sciences , 5: 10— Kozlowski, J. Acarina: Eriophyoidea. Prace Nauk IOR , 29 1 : 39— Damage potential of Colomerus vitis Pag. Khanjani, M. Laugale, V. Sodininkyste ir Darzininkyste , 26 3 : 93— Li, H. Plant Disease, 91 4 : — McIntyre, P.
Ecology , 84 2 : — Mohiseni, A. Plant Protection Scientific Journal of Agriculture , 33 2 : 39— Monfreda, R.
It is proposed that a m high solid concrete gravity-arc dam be built across the Zuhreh River to the southeast of the city of Gachsaran in south-western Iran. The dam and its associated structures are mainly located on the Mishan formation. Analysis consisted of rock mass classification and a kinematic analysis of the dam foundation's rock masses.
The studies were carried out in the field and the laboratory. The field studies included geological mapping, intensive discontinuity surveying, core drilling and sampling for laboratory testing. Dam foundation analysis regarding stability using DMR classification and kinematic analysis indicated that the left abutment's rock foundation area 2 was unstable for planar, wedge and toppling failure modes.
Geological and hydrogeochemical explorations for geothermal resources in eastern Sabalan, NW Iran.
Consideration of unstable isotope of 3H delineated that the average 3H content of these waters is 5. Key words: Sabalan volcano, geology , hydrogeochemistry, stable isotopes, NW Iran. Full Text Available The aim of this paper is to delineate the different lead—zinc mineralized zones in the Zardu area of the Kushk zinc—lead stratabound SEDEX deposit, Central Iran , through concentration—volume C—V modeling of geological and lithogeochemical drillcore data. The C—V fractal modeling used lead, zinc and iron geochemical data to outline four types of mineralized zones, which were then compared to the mineralized rock types identified in the geological model.
Areas where lead and zinc values were higher than 1.edutoursport.com/libraries/2020-06-01/4102.php
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Finally, a log-ratio matrix was employed to validate the results obtained and check correlations between the geological and fractal modeling. Sistema cenagoso de ayapel como posible sitio Ramsar en Colombia. High level natural radiation areas with special regard to Ramsar. The studies of high level natural radiation areas HLNRAs around the world are of great importance for determination of risks due to long-term low-level whole body exposures of public. Detailed radiological studies have been carried out in some HLNRAs the results of which have been reported at least in three international conferences.
Among the HLNRAs, Ramsar has so far the highest level of natural radiation in some areas where radiological studies have been of concern. A program was established for Ramsar and its HLNRAs to study indoor and outdoor gamma exposures and external and internal doses of the inhabitants, Ra content of public water supplies and hot springs, of food stuffs, etc. It was concluded that the epidemiological studies in a number of countries did not show any evidence of increased health detriment in HLNRAs compared to control groups.
Determining absorbed dose of Ramsar people from natural radioactivity. Radiation exposure versus natural resources of environment is in external form.
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Especially, in some regions of the world radionuclides assembling in soils caused background of high radioactivity. Ramsar is one of these regions. The main purpose is to estimate gamma radiation exposure inside and outside of residential buildings in Ramsar and the suburbs and to present exposure map of Ramsar ; also estimating internal exposure of radon gas and obtaining effective dose of Ramsar population. To determine the concentration of Ra, Th, 40 K in soil and building materials gamma spectrometer and Germanium detector were used.
In addition to exposure rate of different sections of Ramsar and its suburbs, residential houses with high exposure rate and more than ones with normal exposure rate were determined. Annual gamma exposure was 5. Maximum of annual gamma exposure rate of this region is mSv. The estimated radon dose, through previous measurement is approximated to Annual exposure rate of gamma radiation is 0. Geology , alteration, age dating and petrogenesis of intrusive bodies in Halak Abad prospect area, NE Iran.
In this investigation, geochemical evolution, age and source of part of northeastern Iran magmatic arc intrusive bodies in Halak Abad area in the Khorasan Razavi province has been studied. The exposed rocks consist of volcanic rocks with andesite and dacite nature, limestone, plutonic rocks mostly diorite, quartz diorite, monzodiorite, quartz monzonite, granodiorite and granite and sedimentary rocks such as limestone, sandstone and conglomerate.
This magmatism is mainly low-K tholeiite series and meta-aluminous. Trace elements behavior shows a nearly flat pattern. Age of granodiorite body based on U-Pb zircon dating is Titanomagnetite, rutile and sphene are present as accessory minerals. Pentlandite, magnetite, chalchopyrite and millerite are also observed as intergrowths or inclusions in ilmenite. Conclusions The investigation of ilmenite concentration in fluvial sediments of the Upper Jogaz deposit represents a gradual increase of ilmenite concentration away from the source rock. Titanomagnetite, sphene and rutile have similar enrichment patterns to ilmenite.
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This suggests that all Ti-bearing minerals had a similar behavior in the Upper Jogaz Valley fluvial system. The geological and petrographic evidence suggests that the origin of the Upper Jogaz Valley placer is the weatherlng of the Ti-rich gabbros. The higher concentration of ilmenite in the lower part of the valley is probably caused by the lower water energy and flow downstream.
The mechanisms of hydraulic sorting Slingerland and Smith, , such as free settling of grains, entrainment of grains from a granular bed load by flowing water and shear sorting of grains in a moving fluidized bed were important in the enrichment of titaniferous placers in the downstream sediments.
References Arshadi, S. Geological map of the Fanuj quadrangle, scale , Geological Survey of Iran.