نتایج جستجو برای: economical growth

تعداد نتایج: 835372  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده زیست شناسی 1388

126 abstract: in this research we studied the effects of cyclic hydration and dehydration of cysts of artemia urmiana and artemia parthenogenetica on the hatching percentage, survival and growth. the experiment was carried out in 3 treatments (1-3 hydration/dehydration cycles) with 3 replicates for each treatment. later effects of cold preservation at -20°c during three time periods were ...

2002
Michael Bretz

In his study of human understanding, Lonergan [1992] saw the task of constructing a cohesive body of explanatory knowledge as a convoluted building process of recurrent schemes (RS) that act as foundational elements to further growth. Although BL’s kernal RS was composed of the cognitional dynamics surrounding Insight [Bretz, 2002], other examples of recurrent growth schemes abound in nature: r...

2012
Inseok Seo Steve W. Martin

Research on lithium-ion secondary batteries began in the 1980s because of the growing demand for power sources for portable electronic devices. After the early 1990s, the demands for higher capacities and even smaller sizes energy systems significantly increased. Further, the explosive growth in the use of limited fossil fuels and their associated environmental issues and economical aspects are...

Journal: :جغرافیا و توسعه ناحیه ای 0

the reduction in regional differences to stop the movement and displacement of human forces and capital in the direction of preparing the ground for development is very effective. development means boosting human potentials for the improved utilization of his environment. rational utilization depends on economical, social and cultural particulars. therefore any kind of condition that is effecti...

Journal: :E3S web of conferences 2023

Currently, the intensification of agricultural production and development irrigated agriculture requires search for solutions rational economical use irrigation water, widespread introduction new, improved water-saving technologies, technical means into production, which directly positively affects growth, development, yield cotton. This article is devoted to influence technology with on rate,

2013
Jiexia Liu Yi Zhu Yujun Tao Yuanming Zhang Aifen Li Tao Li Ming Sang Chengwu Zhang

BACKGROUND Recent studies have demonstrated that microalga has been widely regarded as one of the most promising raw materials of biofuels. However, lack of an economical, efficient and convenient method to harvest microalgae is a bottleneck to boost their full-scale application. Many methods of harvesting microalgae, including mechanical, electrical, biological and chemical based, have been st...

Journal: :Journal of animal science 1993
M van Oijen M Montaño-Bermudez M K Nielsen

Economical and biological efficiencies of beef production to weaning and to slaughter were estimated in three groups, different in milk available (low, medium, and high) to the calves but with the same potential for growth. Data from different breed groups of cows (low [L] = Hereford x Angus, medium [M] = Red Poll x Angus, and high [H] = Milking Shorthorn x Angus) were used. Economical efficien...

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