نتایج جستجو برای: 30cm
تعداد نتایج: 278 فیلتر نتایج به سال:
Background: Electromagnetic fields (EMF) with different intensities are widely used at home, offices and public places.Today, there is a growing global concern about the effects of human exposure to EMFs. Epilepsy is one of the most common chronic neurological diseases, affecting 50 million people of all ages worldwide. We aimed to investigate the effect of exposure to Wi-Fi radiation on epilep...
The health implication of PAHs has been great concern due to its contamination the food chain. This study was carried out identify challenges associated with bioaccumulation in Fluted Pumpkin (Telfairia occidentalis) and Waterleaf (Talinum fruticosum) along Imo River Watershed, State, Nigeria. A total 8 soil samples (0-30cm) were randomly collected from different activity areas on watershed ana...
This research examined the total extractable hydrocarbon content comprising of polycyclic aromatic hydrocarbons (PAHs), petroleum (TPHs), hydrogen carbon (THC) and organic nitrogen (TON) an oil-spill-impacted site in Ogoni land, Okenta Alode, Eleme local government area, Rivers state, Nigeria. Sediment samples crude oil contaminated soils were randomly collected from different points at study s...
a four - year field experiment (1999-2002) was conducted on a silty clay loam soil at laklak research field of hamedan to determine the effects of crop residue management and plowing depth on soil fertility and wheat yield in a maize-wheat rotation. in this investigation, four corn residue managements were used consisting of 1) stalk shredding by maize stalk shredder 2) stalk shredding by disk ...
زمینه و هدف: شبیه سازی با تکنیک مونت کارلو یک ارزیابی عملی ویژگی های پرتو فوتونی کلینیکی است. دقت نتایج شبیه سازی به اعتبار سنجی محاسبات مدل شبیه سازی استفاده شده متکی است. در این مطالعه اعتبار شبیه سازی با کد BEAMnrc برای انرژی 6MV بررسی شد. روش بررسی: کلاهک درمانی شتاب دهنده واریان 2100C/D برای انرژی 6MV با استفاده از کد BAMnrc شبیهسازی شد. چشمه الکترونی ت...
Introduction: Physical attraction has a significant effect on all aspects of personal life, and in this category facial appearance is the most important part of the body in prediction of attractiveness. In the face, mouth and specially shape and size of anterior teeth is important to gain dental and facial esthetic. The aim of this study is evaluation of golden proportion from orthodontic view ...
Objective: An experiment was conducted at Wondo Genet Agricultural Research Center in the production season of 2013/14 and 2014/15 with the objective of identifying the best combination of intra and inter-row spacing for optimum plant population density of stevia. Methods: The experiment was conducted using five intra-row spacing (20cm, 25cm, 30cm, 35cm, and 40...
Background and purpose: Fertilizer is one of the sources of heavy metal contamination in soil and underground water. The purpose of this study was to investigate the concentration of cadmium, lead and arsenic in paddy soil and underground water and its relationship with chemical fertilizer in Ghaemshahr City. Materials and methods: During the spring and summer in 2010, samples of soil were ran...
Knowledge of fish diversity, population data and the stock size, and calculation of the amount of proper catch are essential for a wise and sustainable management of lakes. This research reports a study on fish populations in Dorudzan reservoir, Fars Province. The fish were sampled from three stations in the late Summer and mid Spring 2015, three days each, using nylon gill nets. The mean lengt...
studying forest degradation through evaluation of soil nutrient concentrations, which reveals soil functioning within the ecosystem, is necessary for sustainable management of land resources. this research was conducted to understand the changes of soil nutrient, resulting from exploitive management using some soil features and their spatial pattern. in the mid-summer of 2014, two sites were se...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید