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1
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Agricultural knowledge and information systems in European bioeconomy

100%
Kania J.
Economic and Regional Studies
|
2015
|
tom 08
|
nr 2
The paper presents an analysis and evaluation of Agricultural Knowledge and Information Systems in Europe and the ongoing changes and trends. It is proceeded by a short description of the strategy for the bioeconomy. The analysis uses the results of the author’s own research and review of the literature. Research shows that agricultural knowledge systems are in the process of transition, i.e. from a linear top-down approach towards a more flexible bottom-up approach and interactive solutions in the form of a network. Bioeconomy represents a new challenge in front of all the classic AKIS stakeholders, as well as creates an opportunity for many new NGOs, foundations, centers of excellence, etc. specializing in various aspects of the national management of renewable resources in agriculture.
2

Renewable energy sector in Poland in comparison with other EU countries

84%
Mikolajczak E.
Intercathedra
|
2010
|
tom 26
Crucial factor stimulating renewable energy development, quite apart from fast exploitation of natural resources of coal, gas, oil or uranium is the threat represented by conventional energy waste products such as sulphur, nitrogen and carbon monoxides as well as ashes. Renewable energy resources are not only sustainable but as naturally bound up with environmental processes are highly pro-ecological. Generating energy from renewable resources is in comparison with traditional ones much more environment-friendly mainly via limitation of harmful substances especially greenhouse gases. The article presents current level of harvesting energy from renewable resources in selected EU countries taking into account various forms of those renewable. Compared to European data the situation of renewable energy sector in Poland was presented.
3

Bioplastics from renewable resources - next generation packaging materials

84%
Zakowska H., Ganczewski G.
Opakowanie
|
2012
|
nr 09 English Edition
4

Wood supply in Poland in relation to the expectations of wood industry

84%
Stanula Z., Bienkowski S.
Intercathedra
|
2013
|
tom 29
|
nr 1
Wood, xylem (ksylos in Greek means wood) is the name for a compound heterogeneous plant tissue which is created in the process of vascular plants growth. Depending on the fundamental directions of its anatomy (longitudinal radial, longitudinal tangential and transverse) it manifests various mechanical characteristics. As an organic renewable resource, it has been accompanying people on everyday basis since prehistoric times. Civilization development has also promoted wood utilization as a resource essential for distinct areas or developing industry. It has been currently estimated that wood is used in over 10 thousand applications32. The versatility and in numerous cases even irrevocability of wood usage makes it a highly desirable resource. Its temporary shortage causes many conflicts between the sellers and the buyers as well as the recipients themselves.
5
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Content available

Selected aspects of modelling of sustainable urban transportation system

84%
Chamier-Gliszczynski N.
Teka Komisji Motoryzacji i Energetyki Rolnictwa
|
2011
|
tom 11C
The article refers to a system approach which is used in an analysis of transport issues. A proposal for the construction of a model of a sustainable urban transportation system was presented.
6

Modern trends in utilization of polysaccharide crops

84%
Tomasik P.
Acta Agraria et Silvestria. Series Agraria
|
2003
|
tom 40
|
nr Sek.roln.
Non-nutritional applications of polysaccharides are presented as a remedy for limits put on the level and quality of crop production. Present state of technique and prospects arc discussed based on the outlook of European Union, for the level of production of chemical industry up to 2040. The 300% increase in the output of that industry will be achieved without any increase in the utilization of fossils. Polysaccharides and proteins, versatile, renewable, biodegradable materials originating from crops will be primary sources of chemical industry.
7

Biopolymers based on renewable resources: environmental and economic aspects

84%
Murmura F., Taddeo R., Liberatore L.
Towaroznawcze Problemy Jakości. Polskie Towarzystwo Towaroznawcze
|
2007
|
nr 2
8

Nowe rodzaje lakierow z surowcow odnawialnych

67%
W O.
Biuletyn Informacyjny Ośrodka Badawczo-Rozwojowego Przemysłu Płyt Drewnopochodnych w Czarnej Wodzie
|
2009
|
tom 49
|
nr 1-2
92-93
9

Reforms for meeting common challenges

67%
Pieniazek A.
Polish Food
|
2011
|
nr 2
10

Characteristics of pellets made of food processing wastes and of short-rotation willow biomass

67%
Stolarski M., Szczukowski S., Tworkowski J., Klasa A.
Electronic Journal of Polish Agricultural Universities. Series Environmental Development
|
2011
|
tom 14
|
nr 2
11

Polymer materials

67%
Zakowska H., Krzan A., Scandola M., Voevodina I., Horvat P., Ganczewski G.
Opakowanie
|
2013
|
nr 08
Before moving on to the definition and classifications of plastics, we have to understand the building blocks of plastics. Those are called polymers. In short polymers are large molecules made of repetitive units called monomers. They could have linear, branched or cross-linked structure. Linear polymers are often thermoplastic, that is to say they "are fusible in certain temperatures and also soluble in some solvents. Cross-linked polymers are infusible and insoluble. Polymers are widespread in nature. They are building material for plant and animal organisms. Starch, cellulose, proteins and chitin are all polymers. Other large group of polymers are synthetically made from petrochemical sources, natural gas and coal. All polymer groups are used in many industrial branches.
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