Browse

In this paper consumer preferences for organic and traditional products are analyzed, regarding the level of consumer responsibility towards consumption which supports sustainable development. This study was conducted by a market research in Arad city, Romania, in 2016 on a representative sample, estimating the consumer preferences for organic products and traditional products. Arad county area is an important agricultural basin, with a rich tradition in traditional food products. These product categories are amon...

Even if EU traditional agriculture is based on a considerable part on livestock enterprises activities, and many products are sustaining the traditional activities, livestock production is the largest source of greenhouse gases, high water usage, driver of deforestation, loss of biodiversity, land use, European Union (EU) is the biggest food importer and the second food exporter, spend around 40% of its budget on Common Agricultural Policy in detriment of other sectors. This paper work aims to emphasize the impact...

Ecolabel is an environmental policy tool introduced at European level in 2000 by Ecolabel Regulation. Ecolabel is a tool to promote products with reduced environmental impact throughout their life cycle. These products contribute to an efficient use of resources and a level of environmental protection, offering consumers accurate information about the eco-labeled products. Touristic enterprises that have Ecolabel care for environment and consumer health. If we take the examples of agritourism structures, we will h...

At European level, with the evolution of European policies appeared inquiries locally to standard indicators, allowing some degree of comparison between different cities and towns, as a complement to indicators of local specifically related to the problems of each locality and which differs from one place to another, from one country to another EU. Thus, it has been adopted a set of European Common Indicators (ECI). Short and medium-term effects of air pollution harms human health and harm ecosystems and economy. ...

This article deals with the modification of the nozzle and its entire assembly with a hot end, so that it was not necessary to use a tephlon insertion and it was possible to reach the maximum temperatures of the nozzle reaching 280°C and above. With the gradual development of 3D printing technology FDM (fused deposition modeling), i.e. the fritting of the thermoplastic in the shape of the fibres and putting it into the layers, more demands are placed on the materials used. Materials with a greater temperature of g...

Constrained optimization problems are problems for which a function f (x) is to be minimized or maximized subject to constraints ? (x) . Here f : Rn ? R is called the objective function and F(x) is a Boolean-valued formula. In Mathematica the constraints ? (x) can be an arbitrary Boolean combination of equations g (x) ?0 , weak inequalities g (x) >=0, strict inequalities g(x)> 0, x is integer and x>0 statements. A point u ? Rn is said to be a global minimum of f subject to constraints F if u satisfies the constrai...

Within an expeditionary study, conducted in the south-eastern part of the Romanian Plain and central and southern Dobrogea, soil samples (0-20 cm) under the maize during the growing phase of 4-7 pairs of leaves, have been collected. The investigation methodology included three methods: determining the soil content of mobile Zn, soluble in CH3COONH4-EDTA solution at pH 7, calculating the values of the reaction-mobile phosphates index (RMPI) and of the zinc deficiency index (ZnDI), in order to establish the probabil...

The effect of a polycomposite compost consisting of three organic waste (farmyard manure, sewage sludge, and marine algae) on the nutrition and seed production of the sunflower cultivated in a field experience on a Chernozems in the southeastern part of Romania, was investigated for 2 years. Three types of compost were made from different mixtures of the three components added in proportions by 25% or 50% so that each compost was prevalent in one of them. Agro-chemical analyses of soil samples (pH and N-NO3, N-NH4...