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Methodology for Studying the Ecological Quality of Furniture
Leon Oblak,Matej Jo?t
Drvna Industrija , 2011,
Abstract: Decisions for environment-friendly production and environmentally acceptable products are becoming a necessity and one of very important objectives of timber companies next to already existing economic criteria. Individual products and their manufacture have different infl uences on the pollution of the environment. Therefore it is necessary to determine the ecological quality of individual products, which means analyzing their ecological suitability during their life cycle. In our research we developed the methodology for establishing the ecological quality of furniture, based on three scientific methods: the method of life cycle analysis, ABC analysis, modified for our case, and the multi-criteria decision-making method. We analyzed the ecological quality of three kitchens of a well-known manufacturer. The results of the research are the basis for developing an optimal business strategy from the viewpoint of determining a production assortment. The used methodology is also suitable for studying other furniture products and for accepting optimal environmentally acceptable decisions in wood companies.
Consumption of woody biomass in industry, commercial, and public facilities in Serbia: Present state and possible contribution to the share of renewable sources in final energy consumption
Glavonji? Branko D.,Oblak Leon Z.
Thermal Science , 2012, DOI: 10.2298/tsci1201007g
Abstract: This paper is the continuation of the presentation of results obtained in comprehensive researches of woody biomass consumption in Serbia conducted as a part of the TCP/FAO project “Wood energy for sustainable rural development”. The previous paper (No. 3, 2011) showed results of wood fuels consumption for households heating and this paper shows their consumption for the needs of industry, commercial and public facilities. Research results show that total consumption of woody biomass in Serbia in 2010 was 7.41 million m3, out of which 7.03 million m3 was in the form of roundwood and 0.38 million m3 was in the form of wood residue from industry. The biggest consumers of woody biomass (roundwood, chips, residues) are households with the participation of 86.54%, followed by the production of wood-based panels with 4.47% and energy production for own purposes of wood processing companies with 2.96%. Compared to the officially registered consumption in energy balance in the amount of 0.281 Mtoe, actual consumption of wood energy in Serbia in 2010 was 1.37 Mtoe or 4.9 times higher. Participation of wood energy in final energy consumption in Serbia was 57,300 TJ or 13.6% in 2010. Current use of wood energy substitutes imports of light heating oil in the value of 1.3 billion € or 650 million € in the case of natural gas substituting. Use of wood fuel prevented emissions of about 7 million tonnes of CO2 from fossil fuels.
Production management information system in wood processing and furniture manufacture
Tomislav Grladinovi?,Leon Oblak,Milo? Hitka
Drvna Industrija , 2007,
Abstract: Introduction of a production management information system is one of the ways that could help the management to increase its efficiency. It should enable the monitoring of the whole business of a firm through co-ordination in the process of collecting and using information.
Insurance Models of Wood Sector Companies
Mario Koprol?ec,Darko Motik,Leon Oblak
Drvna Industrija , 2012,
Abstract: The research goals were to determine how the wood sector companies were insured and which risks were covered by insurance. The following parameters were studied: the structure of insurance, company size, technological capabilities requiring insurance coverage, and the overall security of wood sector companies with respect to property and property interests. The results have shown that the wood sector companies use the services of insurance companies but not to a suffi cient extent. It has been shown that companies that had suffered great damage have greater security for the recovery of damage. It has also been shown that insurance models should be applied since the share of insurance premium costs in the total cost structure is almost negligible and that saving on these costs is not desirable taking into consideration that it brings the necessary security to the wood sector companies. By analyzing and comparing the obtained results, insurance models that would be the most effective have been presented and elaborated.
Relation between consumption and import of wooden windows in France
Oblak Leon,Glavonji? Branko,Rankovi? Nenad,Petrovi? Slavica
Glasnik ?umarskog Fakulteta , 2007, DOI: 10.2298/gsf0795135o
Abstract: The paper presents the results from the research about the relation between consumption and import of wooden windows in France. Apart from this, regional direction of import as well as the analysis of trends in consumption and import of wooden windows in France have also been presented. Researches were performed during the period from 1995 to 2005.
Trends of wood window and door consumption in Spain, France and Germany as elements of strategy for their export from Serbia
Rankovi? Nenad,Glavonji? Branko,Oblak Leon,Petrovi? Slavica
Glasnik ?umarskog Fakulteta , 2007, DOI: 10.2298/gsf0796083r
Abstract: The paper gives results of the analysis of econometric models and trends of wood window and door consumption in Spain, France and Germany in the period 2008-2012. The results of the analysis are important for the process of creating export strategy for the chosen wood products from Serbia on the markets of the chosen countries. For each of the abovementioned markets, main recommendations in view of the possibilities for wood windows and doors export from Serbia are given, as well as the recommendations for the appearance of domestic producers on each of the chosen markets.
Wood Sector Media Promotion in Some South-East European Countries
Denis Jela?i?,Leon Oblak,Slavica Petrovi?,Maja Moro
Drvna Industrija , 2012,
Abstract: Wood processing and furniture manufacturing is one of the key industrial sectors in South-East European countries. Based on its share in GDP, this industrial sector should be part of the national strategy plans. However, media coverage of wood processing and furniture manufacturing in Croatia, as well as in other South-East European countries, is far behind the promotion of other industrial sectors. This paper presents the current situation in promotional activities of wood sector in some South-East European countries media and it shows the differences between individual countries. Also, it presents some ideas on improving this situation according to media share of other highly profi led industrial sectors in some South-East European countries.
Glued Laminated Timber in Architecture
Manja Kitek Kuzman, Leon Oblak, Sre?ko Vratu?a
Drvna Industrija , 2010,
Abstract: Structural glued laminated timber (glulam) is an engineered, stress-rated product that consists of two or more layers of lumber (i.e., laminations) glued together with the grain running lengthwise. This article discusses typical shapes and sizes of glulam construction elements and static systems. This paper presents special stress conditions in the apex area of double-tapered beams with varying cross-section, curved and pitched-cambered beams. The results (tensile stresses perpendicular to the grain) obtained by the SAP2000 computer program are shown. In many cases these stresses are the crucial parameter that determines the size of the beam in the apex area. The article discusses the most typical application of glulam elements and analyses its production and use in Slovenia and other EU member states. The study seeks to identify opportunities for increased use of glulam construction in Slovenia.
Adaptability of Kitchen Furniture for Elderly People in Terms of Safety
Jasna Hrovatin,Kaja ?irok,Simona Jev?nik,Leon Oblak
Drvna Industrija , 2012,
Abstract: The number of senior citizens is rapidly increasing, which consequently signifi es an increase in the number of people having sight, hearing or memory diffi culties, people with hampered mobility, and people who find it increasingly diffi cult to process information. Elderly persons experience a greater degree of risk whilst performing daily tasks in their kitchens. Moreover, they are more susceptible to infection and illnesses, necessitating greater care to achieve hygienic conditions within their kitchens. The goal of our research was to determine whether people are generally content with the functionality of their kitchens and whether the degree of dissatisfaction increases with the age of the users. The study aims to pinpoint any major problems facing elderly people whilst working in their kitchens and to establish criteria for kitchen furniture design that could be tailored to senior users’ interests, with the focus on safety. This research was carried out via individual surveys at the respondents’ homes. 204 respondents participated in the research. The results show that most users do not realize that, with more appropriate kitchen equipment, they could perform daily tasks faster, safer, and with less effort. Common shortcomings include insuffi cient lighting (32 %), inappropriate sequential composition of work surfaces (56 %), ease of hygiene maintenance (68 %), inappropriately - shaped furniture (72 %), and tasks that become troublesome because of declining memory (75 %). We believe that it is necessary to design kitchen equipment specifically adjusted for the needs of the elderly.
Choice of Quantitative Method for Forecasting of Parquet Sales
Leon Oblak,Lidija Zadnik Stirn,Maja Moro,Jasna Hrovatin
Drvna Industrija , 2012,
Abstract: Companies that cannot predict business forecasts for their sales always fi nd themselves in ambiguity. In this research we analyzed two quantitative methods that gave the best results for forecasting the sales: Holt-Winters method of exponent smoothing of higher orders and linear regression of the 1st order. The data for the implementation of these two methods were obtained in a wood company that deals with parquet sales. The data were gathered for parquet sales by month in the years 2000 to 2009. The calculations of sales forecasts enabled to compare both methods. On the basis of smaller deviations from data obtained, we determined the most appropriate method. We received the best result with the use of Holt-Winters multiplicative model of exponent smoothing of higher orders. Thus, according to this research, this method should be used for further forecasting of parquet sales in the analyzed wood company.
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