نتایج جستجو برای: production risk
تعداد نتایج: 1524523 فیلتر نتایج به سال:
this study investigates the effects of inputs on production risk of sugar beet farmers in fars province. the study carried out in 1996. the needed data were collected by completing questionnaire from 120 farmers in fars selected through a two-stage cluster sampling survey. the results showed that pesticide, animal fertilizer, seed and irrigation have significant effects on production changes...
با توجه به اهمیت تالاب شادگان در محیط زیست ایران و افزایش آلودگی های منطقه، در پژوهش حاضر غلظت کل و منشایابی فلزات سنگین در رسوب تالاب شادگان مورد بررسی قرار گرفت. بدین منظور نمونه برداری از رسوب سطحی 10 ایستگاه با 3 تکرار صورت گرفت. جهت تعیین غلظت کل فلزات رسوب از روش (direct aqua regia)و برای آنالیز غلظت های فلزات در بخش های ژئوشیمیایی رسوب از روش استخراج پی در پی استفاده شد. آماده سازی نمونه...
Grain production is one of the Ukrainian agro-industrial complex main branches. An indicator of the grain production efficiency is its profitability. It is characterized by significant annual fluctuations that induce risk. Redistribution of existing grain crops areas taking into consideration their profitability can bring to increase of production efficiency. The paper observes Markowitz’s opti...
Benzene, Toluene, Ethyl Benzene and Xylene are volatile organic compounds (VOCs) with approximately similar physical and chemical characteristics. Benzene and Ethyl-benzene are known carcinogen as well as they affect the circulatory, nervous, and reproductive and respiratory systems. Toluene and Xylene also damage the nervous and reproductive systems. The main purpose of this study is to determ...
agriculture sector has had a significant grow thing role in the iran, but growth and development in this sector is not possible without a suitable risk management. this study has tried to predict and measure the risk from changing weather condition on agriculture products of gorgan county using mont carlo stimulation as one of the powerful tools on risk analysis. the results showed that the hig...
Background and aims: Melamine is a chemical widely used in the industries .It was used in the production of plastic – coated plates, glue, molding compounds and melamine dinnerware. Formaldehyde as an irritant was produced in the melamine dinnerware production and create some health problem. In this study irritant risk assessment of formaldehyde was assessed in Melamine dinnerware industr...
Background and aim: For prevention of accidents in chemical processes, the use of multiple layers of protection is essential. In this regard, the analysis of adequacy and use of protective layer resistance is a necessity. In this study the level of protection layers security of Cephalexin Crystals production unit of one the pharmaceutical companies is examined. Methods: In this descriptive s...
the safety of hydrogen generation facilities is the main concern in their process operation. this study was conducted to identify the hazards and evaluate the risks of a hydrogen generation plant. for this purpose, prha (process hazard analysis) was applied for hazard identification while lopa (layer of protection analysis) was used for risk assessment. the study was conducted in the hydrogen p...
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