نتایج جستجو برای: source of need production
تعداد نتایج: 21258531 فیلتر نتایج به سال:
گل محمدی (r. damascena mill.)مهمترین گونه ای است که در تولید گلاب، عطر و اسانس، در صنعت عطرسازی و دارویی کاربرد دارد. با وجود اهمیت عطر گل محمدی، پژوهش های مولکولی و بیوشیمیایی عطر گل این گونه هنوز در مراحل ابتدایی است. در این پژوهش، ویژگی های مولکولی و فیزیولوژیکی تولید عطر در گل محمدی در آزمایش های مختلف مورد بررسی قرار گرفتند. در آزمایش اول، پژوهشی به منظور بررسی تنوع شیمیایی اسانس میان 44 ت...
Introduction: Agriculture is one of the oldest jobs in the world and almost 7-2 billion people all over the world are working in this field. In the field of agriculture workers may be always in danger, due exposure to various chemical and physical factors. Despite the dramatic technological developments in agricultural science, this field is still among one of the most dangerous workplaces...
background: along with the prospers of scientific production there is a need for measuring and evaluation of university’ s scientific productions by means of accepted international indices to make comparison between academic institutions. this study aims to evaluate the scientific production of faculty members affiliated to shahid beheshti university of medical sciences (sbmus) in web of scienc...
background: l-tryptophan is used widespread in the pharmaceutical industry. the majority of l-trp production depends on microbial processes that produce l-tryptophan from indole and l-serine. these processes are very costly due to the costs of precursors, especially l-serine. use of inexpensive substitutions as the l-serine source of l-tryptophan production enables us to reach a cost-effective ...
1.0 overview it seems that grammar plays a crucial role in the area of second and foreign language learning and widely has been acknowledged in grammar research. in other words, teaching grammar is an issue which has attracted much attention to itself, and a lot of teachers argue about the existence of grammar in language teaching and learning. this issue will remind us a famous sentence f...
در این پایان نامه مبدل های امپدانسی بطور خلاصه با عنوان (z-source converter) نامگذاری شده است. این مبدل در همه اشکال انتقال توان بصورت های dc به ac، ac به dc، ac به ac و dc به dc کابرد دارد. مبدل منبع امپدانسی از یک شبکه امپدانسی جالب بین یک منبع تغذیه و بار یا مبدل های دیگر برای دستیابی به ویژگی های منحصربفردی که در vsi و csi وجود ندارد، بهره می گیرد. در مبدل های منبع امپدانسی موانع و محدودیت ...
Denrostellera lessertii (Thymelaceae) is a native plant of Iran, which grows in limited area of Iran. So far, different groups have reported the anticancer products of many species of this family. The antitumor and anti-metastatic properties of D.lessertii have also been well worked out in our group and the most active component, 3-Hydrogenkwadaphnin has been purified and its chemical structure...
Denrostellera lessertii (Thymelaceae) is a native plant of Iran, which grows in limited area of Iran. So far, different groups have reported the anticancer products of many species of this family. The antitumor and anti-metastatic properties of D.lessertii have also been well worked out in our group and the most active component, 3-Hydrogenkwadaphnin has been purified and its chemical structure...
what has been discussed here has been a study of international immigration law. this branch of law has not been a major player in the field of international law. no collective law exists, and no codification has been carried out as yet. however, the need for such a set of laws has forced the international community to pay more attention to this issue. the need for a better life in the so-call...
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