نتایج جستجو برای: condition factor
تعداد نتایج: 1136705 فیلتر نتایج به سال:
Road transportation is one of the most important needs of villagers, which is considered as one of the important infrastructures in the development of a region. Undoubtedly villages are better equipped with the development of communication routes, especially highways, and their problems and problems are reduced. In this research, the most important consequences and factors affecting the Khoramz...
in this paper, we give connection between the order of the generalized baer-invariant of a pair of finite groups and its factor groups, when ? is considered to be the specific variety. moreover, we give a necessary and sufficient condition in which the generalized baer-invariant of a pair of groups can be embedded into the generalized baer-invariant of pair of its factor groups.
In this paper, we give connection between the order of the generalized Baer-invariant of a pair of finite groups and its factor groups, when ? is considered to be the specific variety. Moreover, we give a necessary and sufficient condition in which the generalized Baer-invariant of a pair of groups can be embedded into the generalized Baer-invariant of pair of its factor groups.
Length weight relationships of Vimba vimba persa were studied. For this purpose 174 fish samples were collected by gill nets, beach seine and purse seine from March through June 2008 at two Guilan fisheries catch stations of Guilan located in Anzali- Kiyashahr regions. Samples were immediately transferred to the laboratory of fish biology at University of Guilan for further an...
Length weight relationships of Vimba vimba persa were studied. For this purpose 174 fish samples were collected by gill nets, beach seine and purse seine from March through June 2008 at two Guilan fisheries catch stations of Guilan located in Anzali- Kiyashahr regions. Samples were immediately transferred to the laboratory of fish biology at University of Guilan for further an...
Concentration of heavy and toxic metals Cu, Zn, Cd, Pb and Hg were determined in liver and muscles of Rutilus frisii kutum and their relationships with growth parameters (length, age, condition factor) and hepatosomatic index were examined. Thirty-six fish samples were collected from February through March 2009 caught by beach seine in the southwest parts of the Caspian Sea. Atomic absorption ...
separation of polycyclic aromatic hydrocarbons was performed by rp-hplc using mixed micellar mobile phase. effect of temperature, types and amounts of coorganic solvent in mobile phase on efficiency, asymmetry factor and selectivity factor showed that the appropriate condition for separation of these compounds was 3% isopropanol (v/v) as co-organic solvent in mobile phase at 40°c. analysis of t...
introduction ownership is an important element for sustainability development in natural resource management. rangelands vegetations are important factor for produce in traditional herding therefore recognition of different utilization methods and management of this vegetation resource production for animal grazing and rangelands condition is very important. so this research carried out in 2009...
Separation of Polycyclic Aromatic Hydrocarbons was performed by RP-HPLC using mixed micellar mobile phase. Effect of temperature, types and amounts of coorganic solvent in mobile phase on efficiency, asymmetry factor and selectivity factor showed that the appropriate condition for separation of these compounds was 3% isopropanol (V/V) as co-organic solvent in mobile phase at 40°C. Analysis of...
The present study examined the effect of date pits powder as a low-cost and nutritive carbohydrate source compared to wheat, rice and corn meal in the diet of Pacific shrimp. The date pits meal was applied to the diet at the levels of 0 (control group), 5, 10, 15 and 23%, and the growth performance of shrimp was examined in 8 weeks. The results showed that the weight and length gain, specific g...
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