نتایج جستجو برای: and chemical industries

تعداد نتایج: 16874081  

The present study aims to carry out a comparison of cash holding determinants in different industries. For this purpose, required data gathered from 123 companies in Tehran Stock Exchange during 1385 to 1390 and statistically analyzed with multiple regression based on combined data. the model was first tested in the entire sample and then separately in six industry. Empirical research findings ...

ژورنال: یافته 2009
شمس خرم آبادی, قدرت اله, میرزایی, رویا , ناصری, سیمین, غلامی, میترا ,

Background: Effluents from textile industries contain different types of dyes. One of these dyes used in textile industries is Reactive dye. Because of high molecular weight and complex chemical structures, they show low levels of biodegradability. Hence, the direct disposal of these effluents to municipal wastewater treatment, produce problems in biological treatment processes. The aim of th...

ژورنال: سلامت کار ایران 2011
متوقع, مجید, جهانگیری, مهدی,

  Background and aims In the most chemical process industries, workers are exposed to various chemicals and working with these chemicals without considering safety and health considerations can lead to different harmful symptoms. For deciding about control measures and reducing risk to acceptable level , it is necessary to assess the health risk of exposing to harmful chemicals by aid of specif...

Journal: Journal of Herbal Drugs 2014
Ali Khalilipour Mahmood Dejam,

Background & Aim: Essential oil of pennyroyal (Mentha pulegium L.) has many applications in food, perfume and pharmaceutical industries. The aim of this study was to determine the content and chemical constituents of pennyroyal essential oil growing wild in Southern Iran. Experimental: The aerial parts of the plant were collected around Hajiabad, Hormozgan province in 2013. The essent...

2016
M. S. Hamed

The drawbacks to multivariate charting schemes is their inability to identify which variable was the source of the signal. The multivariate exponentially weighted moving average (MEWMA) developed by Lowry, et al (1992) is an example of a multivariate charting scheme whose monitoring statistic is unable to determine which variable caused the signal. In this paper, the run length performance of m...

2017
SABIC Green

Background: Logistics is paramount in the business operations as it ensures transit of goods from one point to the other. Green logistics are measures in the logistics systems that are put in place to minimize the environmental implication of logistics operations while at the same time saving on cost. Thus, green logistics is adopted as it conveys a competitive merit which enhances performance ...

2008
Xue Liu BenJaMin J. GLasser

179 The last few lectures of an undergraduate class in fluid mechanics offer instructors an opportunity to teach students some advanced topics that go beyond the traditional course material.[1] Fluid-particle flows, where both the fluid and particle are in motion, are prevalent in many industries including the chemical, materials, and energy industries.[2] In the pharmaceutical and biotechnolog...

Journal: :journal of herbal drugs 0
majid mohammadhosseini department of chemistry, shahrood branch, islamic azad university, shahrood, iran

background & aim:nepeta racemosa is an herbal and medicinal plant and this report aims to   identify chemical compositions of the essential oils and volatiles of its   aerial parts through classical and advanced methods.  experimental: chemical profiles of the essential oils and volatile compounds from the aerial parts of nepeta racemosa obtained through hydrodistillation (hd), solvent-free mic...

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