نتایج جستجو برای: wood products

تعداد نتایج: 327504  

2003
Geoffrey H. Donovan David L. Nicholls Joseph Roos

Donovan, Geoffrey H.; Nicholls, David L.; Roos, Joseph. 2003. Marketing recommendations for wood products from Alaska birch, red alder, and Alaska yellow-cedar. Gen. Tech. Rep. PNW-GTR-589. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 13 p. Several factors have contributed to a recent decline in Alaska’s wood products industry, including redu...

2004
Perry Forsythe

The Forest and Wood products Research and Development Corporation ("FWPRDC") makes no warranties or assurances with respect to this publication including merchantability, fitness for purpose or otherwise. FWPRDC and all persons associated with it exclude all liability (including liability for negligence) in relation to any opinion, advice or information contained in this publication or for any ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده منابع طبیعی 1391

in this study, the effects of oleothermal modification on physical and mechanical peroperties of fir wood (abeis sp.) blocks were examined. at first, some blocks of fir wood with 5 × 20 × 120 cm dimensions were prepared. the blocks were treated in soybean oil. the effects of 3 factors such as treatments temperature (180and 200 °c), holding time (12 and 15 h) and initial moisture content of wood...

Journal: :تحقیقات اقتصادی 0
حسن سبحانی دانشیار دانشکده اقتصاد دانشگاه تهران حمید عزیز محمدلو دانشجوی دکتری علوم اقتصادی دانشگاه تهران

the main objective of this study is to investigate the production factors productivity in large manufacturing sub-sectors. for this purpose, using statistical data for period 1972-2004, we have tried to study and analyze the trend and level of production factors productivity (partial and total productivity) in each sub-sectors classified according to isic two digits code. the average and margin...

2008
Carolina Chávez Felipe Baesler

This paper presents the study of one optimization of the production planning model in the supply chain wood Industry: market, sawmill and harvest, multiperiod and a planning horizon of two years, which means of maximizing the profitability of a mix of wood products, incorporating an approach of game theory. This approach would incorporate the decisions of corporate governance the trade-off of t...

1999
JEFFREY P. PRESTEMON

A BSTRACT According to the Heckscher-Ohlin-Vanek theorem, the net exports of a region are determined by relative abundance of the immobile factors of production. Empirical tests of this theory, usually at a high level of aggregation, have frequently not supported it. We find, instead, that data on interstate trade in wood products within the United States are in strong agreement with the theore...

1999

Issue: Pulp and paper industry were originally designed and constructed to use virgin wood feedstocks as a raw material. Some of the virgin wood fiber used for the pulp and paper industry is from lower value roundwood logs that are chipped for pulping. The other major source is from the residuals from sawmill, veneer, and lumber plants. These solid wood production plants produce millions of ton...

2001
Christophe Plomion Grégoire Leprovost

Wood is the most important natural and endlessly renewable source of energy and therefore has a major future role as an environmentally cost-effective alternative to burning fossils fuels. The major role of wood is not only the provision of energy but also the provision of energy-sufficient material for our buildings and many other products. In addition, developing wood cells represent one of t...

2015
Heather Keith David Lindenmayer Andrew Macintosh Brendan Mackey Paul Adam

Climate change mitigation benefits from the land sector are not being fully realised because of uncertainty and controversy about the role of native forest management. The dominant policy view, as stated in the IPCC's Fifth Assessment Report, is that sustainable forest harvesting yielding wood products, generates the largest mitigation benefit. We demonstrate that changing native forest managem...

This study aims to investigate the relationships between people?s livelihoods and the woodland resources of the Ganaveh watershed in southern Zagros, Iran, as a basis for suggestions of strategies for sustainable management of the woodland resources and improvement of the livelihoods of people in the community. Household data were collected through interviews with heads of households and member...

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