نتایج جستجو برای: actors in biomass
تعداد نتایج: 16989532 فیلتر نتایج به سال:
Innovation is a tool to achieve economic and social goals and is increasingly important as a key driver of development. Despite the success of a large number of researches in term of technical, a limited number of commercialization stages have been successfully completed, This indicates the complexity and the existence of various obstacles to commercialization. In this research, the actors in t...
Seasonal distribution of species composition, cell abundance and biomass of phytoplankton of the Caspian Sea were investigated in 2005. This survey were fulfilled in 6 transects and 26 stations A total of 260 samples were collected during winter to autumn in the southern part of Caspian Sea. Totally, 163 species of phytoplankton were identified (71 species Bacillariophyta, 31 species Chlorophy...
Seasonal distribution of species composition, cell abundance and biomass of phytoplankton of the Caspian Sea were investigated in 2005. This survey were fulfilled in 6 transects and 26 stations A total of 260 samples were collected during winter to autumn in the southern part of Caspian Sea. Totally, 163 species of phytoplankton were identified (71 species Bacillariophyta, 31 species Chlorophy...
Soil microbial biomass plays an important role in nutrient transformation in terrestrial ecosystems. Microbial biomass is also an early indicator of changes in total soil organic carbon. Thus, the main objective of this study was to identify and quantify the present status of soil microbial biomass carbon and nitrogen with various management practices in Himalayan rangeland. To meet the aforeme...
Renovation of urban distressed areas has been on the government and municipalities’ agenda because of the extent of it in the country and probability of large and average earthquakes in it and the vulnerability of these areas. So due to intersectional nature of the subject and necessity of Cooperation between actors, it is necessary to design an integrated management system in this scope. Also ...
Biomass is a key factor in dynamics evaluation of ecosystems, biodiversity level and their stability. Biomass measurement is performed every year to evaluate range ecosystems (investigating the trend of changes), range management (suitable browsing systems) and cover assessment in rangelands. As direct biomass measurement is time-consuming, has costs and destroy rangelands non-destructive metho...
abstract: the main goal of this paper is to modeling of producers’ strategic suggestions for each electricity manufacturer in an oligopolistic structure. according to the proposed structure of the electricity market modeling; this paper uses a dynamic model based on cournot equilibrium. due to the large volume of required information, the implementation of the model is limited to a regional ele...
in this article , firstly a brief survey of iranian-british official political relations are considered . then , it would be studied cultural relations of two countries in the qajar era .role of the english in these relations are evaluated in sections . first , actors of the relations are noted i four groups in cluding diplomats , military forces , tourists and other scholars and researchers ....
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید