The aim of this study is to present a comprehensive human resources model based on ISO34000 standard at Khorasan Razavi Electricity Distribution Company. This study is mixed, sequential exploratory, and applied. The qualitative population was the experienced and scientific experts. The quantitative population was 153 managers, deputies and experts responsible for the electricity company selecte...

Background: Unsustainable development of human societies, especially in arid and semi-arid areas, is one of the most important environmental hazards that require preservation of groundwater resources, and permanent study of qualitative and quantitative changes through sampling. Accordingly, this research attempts to assess and analyze the spatial variation of quantitative and qualitative indica...

Quantitative changes in groundwater and crises resulting from uncontrolled water extraction have turned water resources management into one of the supply-demand dilemmas in arid regions. The present study evaluated the quantitative situation of water resources in the Ardestan Plain adjoining the Ardestan desert by using the MODFLOW mathematical model. Simulation of groundwater flow in the stead...

nanoparticles classified in 4 overall groups containing: metallic nanoparticles, ceramic nanoparticles, polymeric nanoparticles and semiconductor nanoparticles. these nanoparticles are used in some biomedical applications such as carrying medicine and photographing agents. with attention to different criteria which are both qualitative and quantitative, selecting the most suitable nanoparticles...

The Persian walnut (Juglans regia L.) is one of the most valuable resources in Iran because of its multi benefits. The present study was conducted in Meshkin-Shahr in Ardabil province to investigate the important quantitative and qualitative characteristics of 31 walnut genotypes. Classification of genotypes was analyzed using the cluster method. The results showed that among selected walnut ge...

1. introduction world bank, in a report on our country, has named the following factors as the water challenges facing the country: decrease in per capita recoverable water, loss of water quality, inefficient use of effective consumption monitoring in industry and agriculture, soil salinity, the poor quality of maintenance and preservation of reservoirs, restrictions on the recoverable cost and...