نتایج جستجو برای: organic system

تعداد نتایج: 2407474  

2013
Alfredo Aires Rosa Carvalho Eduardo A S Rosa Maria J Saavedra

Nitrate and nitrite are widespread contaminants of vegetables, fruits, and waters. The levels of these compounds are increased as a result of using organic wastes from chemical industries, domestic wastes, effluents, nitrogenous fertilizers, and herbicides in agriculture. Therefore, determining the nitrate and nitrite levels in biological, food, and environmental samples is important to protect...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
حمید ملک سعیدی عبدالعظیم آجیلی کورش رضائی مقدم

the undesirable negative consequences of conventional farming have lead to the need and emphasis for new sustainable agricultural production techniques. organic farming has arisen to be considered as one of the sustainable agricultural systems. agricultural experts play an important role in extension and spread of the system. the research goal is to investigate the effective factors on expert&a...

امیدی, فریبرز, دهقانی, فاطمه, ذاکریان, سید ابوالفضل, گلبابایی, فریده,

Introduction: Exposure to organic solvents cause adverse effects on various systems such as the central nervous system, behavioral and cognitive changes, sleep disorders, as well as changes in mood. This study was aimed to evaluate the effect of long term exposure to mixed organic solvents on positive and negative aspects of the mood of the workers of a painting industry.   Material and Method...

2007
Lukas Kilcher

Organic agriculture can contribute to meaningful socio-economic and ecologically sustainable development, especially in poorer countries. This is due on the one hand to the application of organic principles, which means efficient management of local resources (e.g. local seed varieties, manure, etc.) and therefore costeffectiveness. On the other hand, the market for organic products – at local ...

Nicola Galluzzo

In many European states such as Spain and Italy there has been a significant growth of organic utilizable surface as a consequence of both a change in the model of agricultural production and also in order to satisfy arising demand of organic food. The purpose of this research was to investigate the level of technical, allocative and economic efficiency in Italian olive farms with two different...

Journal: :international journal of environmental research 2013
a.h. javid a.h. hassani b. ghanbari k. yaghmaeian

in this study, feasibility of upgrading and retrofitting municipal wastewater treatment plantswas investigated at laboratory scale using moving bed biofilm reactor (mbbr) process. for this purpose,an aerobic pilot was operated for nearly one year in different conditions, in which a moving bed carrier with aspecific biofilm surface area of 500 m2/m3 and a filling rate of 60% was utilized. system...

2008
D. H. Kim S. H. Cho J. H. Kim P. N. Seong J. M. Lee K. H. Hah D. G. Lim

This study compared organically reared chickens with conventionally reared ones with regard to fatty acid composition traits. The conventional and organic flocks with an average age of 40 days were raised in an indoor pen. Stocking densities of conventional and organic ones were 0.05 and 0.13 m/bird, respectively. The conventional diet was formulated with common ingredients whereas the organic ...

2007
Rolf P. Würtz

It is therefore intriguing to identify strategies by means of which these properties are achieved by living systems. This “Learning from Nature” is the founding idea of Organic Computing. Earlier IT applications include Neural Networks and Evolutionary Computation. The current interest in Organic Computing is also sustained by a notion of “Organic” which relates to the user rather than the deve...

2011
S. Padel

such as those for organic foods are rapidly increasing worldwide. Although consumers support development of technologies to improve animal health and meat quality, they have a negative view of what can be perceived as “unnatural” in the pork production system. Organic products are often purchased, because it is believed that they are healthier and safer than conventional products. Moreover, in ...

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