نتایج جستجو برای: babolsar
تعداد نتایج: 147 فیلتر نتایج به سال:
Background and purpose: This study aimed to determine the origin and distribution of lead, copper, zinc, nickel, chromium and vanadium in surface sediments of Mazandaran coastline (southeastern coast of the Caspian Sea). Materials and methods: Surface sediment samples were collected from four transects in Tonekabon, Noshahr, Babolsar and Amir abad port, at three different depths of 5, 15 and 3...
Groundwater is of the most reliable sources of water for agriculture and drinking. In coastal areas due to saltwater intrusion, determine the interface between fresh and salt water for residents of these areas is very important. In this study, the characteristics of coastal aquifers West and East Babolsar, using geoelectrical studies and geo-electromagnetic studied that these methods are of the...
The Caspian kutum, Rutilus kutum Kamenskii, 1901 from Cyprinidae family is native in the Caspian Sea, with the highest distribution in the southern part and rarely seen in the northern and is an economically important species along the Caspian Sea. Despite this, knowledge about stock structure is scarce and there is no formal management strategy to ensure the long-term sustainability of this va...
Nowadays, tourism industry, as one of the premium developing industries, plays an important role in the economy of countries and takes an active and effective part in improving cultural-social and environmental structure of the host country. Considering the increasing importance of tourism in the development of communities, the current research intends to make an investigation into the effect(s...
Excessive heat in the high-rise urban fabric has contributed to pedestrian and occupants' discomfort. Establishing wind circulation space with an environmentally compatible optimal configuration is necessary improve comfort this region. The study benefits from field measurements experimental validation of CFD simulation investigate effective parameters that affect speed. master plan proposed de...
BACKGROUND Malaria is one of the most important parasitic diseases in tropical and temperate regions. The aim of this study was to determine the trend of malaria in Mazandaran Province, northern Iran during 1997-2012. METHODS This retrospective study was conducted from 1997 to 2012. The population's study was individuals who registered at health centers of Mazandaran Province. Peripheral bloo...
parasites are widely distributed and cause many diseases in humans and domestic animals. in this study in order to find prevalent species of intestinal parasites in mazandaran province (northern iran), four cities including pol-sephid, aliabad-katoul, amol and babolsar were studied during 1991-1996. stool samples were preserved in 10% formalin prior to examination by formol-ether concentration ...
in this study, 160 fishes were randomly collected from commercial catch by a cone net in babolsar port from january to october 2010. the biological features of specimens were measured. 2 + years old fishes made the dominant age group with 33.75% and 1 + and 5 + years old had the least frequency (8.75%). relationship between length and weight indicated negative allometric growth pattern (b=2.581...
Abstract Coastal areas are dynamic and complex multi-function systems. A wide number of often conflicting human socio-economic activities occur in these areas. These include urbanization, tourism and recreational activities, industrial production, energy production and delivering, port activities, shipping, and agriculture. Coastal systems are also characterized by important ecological and ...
In this study, species composition, density and biomass of zooplanktons including Rotatoria, Protozoa and Meroplanktons were sampled using Juday net with mesh size of 100 µ at depths of 5, 10 and 20 meters in southern Caspian Sea (Babolsar) in two seasons of cold (Feb. 2015) and warm (June 2015) . This study identified Asplanchna sp. and Synchaeta sp. from Rotatoria, and Balanus sp., Pelecypoda...
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