نتایج جستجو برای: chemical analysis
تعداد نتایج: 3128915 فیلتر نتایج به سال:
Background & Aim:Mentha longifolia (L.) Huds is an aromatic perennial herb that belongs to the family Lamiaceae. The aim of this study was to identify chemical composition of aerial parts (including leaf, stem and flowers) of M. longifolia collected from (Kamu mountain) Isfahan province. Experimental: The essential oils were extrac...
System defects and policy-related exclusion in the development and utilization of energy resources bring the problem of rich poverty to energy and chemical industry base in Northern Shaanxi. The long existence of the rich poverty problem of energy and chemical industry base in Northern Shaanxi forms deep-seated constraints to the sustainable development of energy economy in Northern Shaanxi and...
background: the spread of urbanization in floodplains as well as increase of industrial and agricultural activities in river discharges may lead to water pollution by physical, chemical and biological pollutants. one of the major concerns in monitoring the water resources system is indentifying major quality parameters and determining a relationship between physical and chemical parameters. thi...
this ethnographic case study research was carried out in a private school setting in the context of iran. the research tried to explore the analysis and identity construction of a group of learners and teachers along with the content analysis of books on the basis of four types of commodified, political, national and narrative identities. how english language learners and teachers in an informa...
present study determines not only the total amounts of metals (cr, cu and pb) in superficial agricultural soil of sistan area in eastern iran, but also the chemical partitioning of these elements in seven statistically selected cases. the analysis was run for local soil, soil treated by non-contaminated organic, compost and chemical fertilizers as well as soil treated by metal-contaminated fert...
present study determines not only the total amounts of metals (cr, cu and pb) in superficial agricultural soil of sistan area in eastern iran, but also the chemical partitioning of these elements in seven statistically selected cases. the analysis was run for local soil, soil treated by non-contaminated organic, compost and chemical fertilizers as well as soil treated by metal-contaminated fer...
abstract this study evaluated and compared medical terminology and english for the students of medicine (ii) as two representatives of the textbooks available on the iranian market for teaching english to the students of medicine. this research was performed on the basis of a teacher’s and a number of students’ attitudes and the students’ needs analysis for two reasons: first, to investigate...
background & aim:mentha longifolia (l.) huds is an aromatic perennial herb that belongs to the family lamiaceae. the aim of this study was to identify chemical composition of aerial parts (including leaf, stem and flowers) of m. longifolia collected from (kamu mountain) isfahan province. experimental: the essential oils were extracted using the hydrodistillation method and analysed by g...
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