No description available.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1991. / Vita. Abstract. Includes bibliographical references (leaves 71-72). Also available via the Internet.

No description available.

Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 162-167). Also available via the Internet.

Thesis (Ph. D.)--University of Wyoming, 2007. / Title from PDF title page (viewed on Nov. 7, 2008). Includes bibliographical references (p. 86-88).

Stora Enso is today one of the four largest companies in the swedish forest industry. The company's business is spread all over the world, but it’s headquarters are located in Sweden and Finland. Stora Enso Skog is part of the company's global organization for wood supply to Swedish sawmills, paper mills and pulp mills. As all companies, regardless of industry, are part of a supply chain, an impact on and by other performers in the chain occurs. It is this influence that determines the prerequisites and starting points for effective processes and flows. The supply chain between forests and industry, on the other hand, is complex as tree as a raw material source are generally difficult to specify. The purpose of this case study is, therefore, to map the supply chain of the pinetree-timber at the “Dalälven” area from forest harvesting to measurement and sorted stock at the sawmill. Based on this objective, a delimitation has been made in such a way that the case study is performed only after pinetree-timber as a product. By dividing this pinetree-timber process into three parts; the harvesting process, the transport process and the measurement process an observation and semi-structured interviews was made with closely related staff as well as the transport partner Westan Logistik. The answers from interviews constituted an empirical comparison that was then compared to reviewed secondary data in the form of different literary theories. The results are visualized through a process flowchart, a information flowchart, a value-flow analysis, and a leadtime analysis, which have shown, among other things, that the value-creating activities (V) are less compared to non-value-creating activities (I) and the necessary non-value creation activities (N) in the pine-tree timber process. Even the leadtime proportion is greatest in the non-value-creating activities. The results provided the basis for an analysis and, last but not least, conclusions could be drawn. Because the raw material is complex, and the pinetree-timber process contains many performers, it can be a challenge to get a smooth and efficient flow through the supply chain. Interviews and theories have shown that the physical as well as the informative flow has difficulties which, for instance, slow down the process more than necessary. It is therefore interesting to see through a mapping how these can be improved and have a higher level of efficiency.

Baigiamajame darbe aptariami kirtavietėse paliekamų pušies biologinės įvairovės medžių ilgalaikio išlikimo neigiamiems aplinkos veiksniams tyrimo rezultatai. Darbo tikslas – surinkti ir įvertinti Nemenčinės miškų urėdijos kirtavietėse paliekamų biologinės įvairovės medžių būklę, kiekį ir išlikimą kirtavietėje. Darbo objektas – plyno kirtimo biržės ir jose palikti biologinės įvairovės medžiai. Darbo metodika. Mokslinės literatūros analizės pagrindu teoriniu aspektu buvo gilinamasi į biologinės įvairovės svarbą ir jos apsaugos priemonių kūrimą bei taikymą. Šiam tikslui pasiekti studijuojamos lietuvių bei užsienio autorių knygos, moksliniai straipsniai, internetinė medžiaga, susijusi su nagrinėjama tema. Tyrimo metu buvo analizuojami keli parametrai: medžių atsparumas aplinkos poveikiams, medžių ilgalaikis išlikimas priklausantis nuo kirtavietės ploto, reljefo, paklotės storio. Darbo rezultatai. Tyrimo metu buvo susisteminta medžių paliekamų bioįvairovei tendencija. Buvo tirtos trijų skirtingų kirtimų metų šešios kirtavietės. Tyrimo metu nustatyta, kad į medžių paliekamų bioįvairovei būklę vis daugiau atsižvelgiama. Kirtimų metu paliekama vis didesnės įvairovės medžių, kurie atrenkami pagal normatyvus, kad būtų kuo ilgaamžiškesnis jų išlikimas. Nemenčinės miškų urėdijoje kirtavietėse po kirtimo praėjus daugiau nei 5 metams daugiausia išliko gyvybingų – žalių – medžių 77 proc. ir tik 23 proc. kitokių nudžiuvusių, nulaužtų ir išverstų medžių. Dauguma žalių medžių dažniausiai... [toliau žr. visą tekstą] / The master thesis presents the pine tree biodiversity and it‘s condition in the clear-felled area had been evaluated in forest areas. Aim of the work – assemble and evaluate the condition, quantity and survival of the trees, left for biological diversity in clear cutting areas in Nemenčinės forestry enterprise. Object of the work – The trees left for the biological diversity in clear cutting areas. Methods of the work – the theoretical aspect of the importance of biodiversity and its conservation and development of the application were analyzed in literature. To achieve this, the Lithuanian and foreign authors, books, scientific articles, online material related to the topic were studied. The study included the analysis of several parameters: tree resistance to environmental factors, long-term survival of the trees from harvesting area, terrain. Result of work - during the studies the biodiversity trend of the pine trees left in the wood clearcuts was structured. Six clearings in three different harvest years have been tested. It have been stated that more and more attention for the biodiversity is considered. During the clear cuttings bigger variety of the trees are left. These trees are selected according to the guidelines in order to make the more durable. After more than 5 years in the Nemenčinės forestry enterprise - the majority of trees in the clearcut forest - 77 % of them - are well growing, lush green trees. However, 23 % of the trees are dead, twisted or dumped... [to full text]