• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 28
  • 5
  • 5
  • 4
  • 2
  • 1
  • Tagged with
  • 50
  • 8
  • 8
  • 6
  • 6
  • 6
  • 6
  • 6
  • 6
  • 5
  • 5
  • 4
  • 4
  • 4
  • 3
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
21

Strategic analysis of International Forest Products Limited /

Modesto, Robin M. January 2005 (has links)
Research Project (M.B.A.) - Simon Fraser University, 2005. / Research Project (Faculty of Business Administration) / Simon Fraser University. EMBA Program. Senior supervisor : Dr. Ed Bukszar.
22

Management Styles of Lumber Mill Managers in the Northern United States

Trask, Keith Matthew January 2008 (has links) (PDF)
No description available.
23

Proposta de otimização para reflorestamento de eucalipto utilizando multiprodutos

Sartori, Maurício Scorsatto [UNESP] 17 May 2013 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:35:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-05-17Bitstream added on 2014-06-13T19:06:03Z : No. of bitstreams: 1 sartori_ms_dr_botfca.pdf: 399532 bytes, checksum: d83212a1aa6e92a27edaf299ba89ebea (MD5) / Este estudo analisa a produção e o retorno econômico de um reflorestamento de Eucalyptus grandis com 12 anos de idade em uma propriedade rural no município de Bofete, estado de São Paulo. O objetivo principal foi comparar o retorno econômico quando se utiliza um mesmo povoamento florestal para diferentes estratégias de comercialização, como de um único produto ou a comercialização de multiprodutos a partir de uma seleção diamétrica, com propósitos de geração de energia ou processamento da madeira em serrarias. Foram definidas e caracterizadas cinco estratégias de comercialização através do volume de madeira quantificado por um modelo de afilamento com polinômio de 5º grau, do levantamento dos custos de implantação, variações nos custos de colheita decorrentes dos diferentes sortimentos, e receitas alcançadas a partir dos preços dos produtos comercializados. Os indicadores econômicos calculados foram o Valor Presente Líquido (R$ ha-1), Valor Esperado da Terra (R$ ha-1) e Taxa Interna de Retorno (%), considerando-se uma taxa de desconto de 7,25%. Como resultados foram encontrados Valor Presente Líquido que variaram entre R$ 3.626,37 ha-1 e R$ 5.539,60 ha- 1, Valor Esperado da Terra entre R$ 6.753,67 ha-1 e R$ 10.316,82 ha-1, e Taxa Interna de Retorno de 13,30% a 15,58%, sendo as estratégias com multiprodutos aquelas que apresentaram retornos superiores em todos os métodos. Pode-se concluir que todas as estratégias apresentaram resultados econômicos positivos, de modo que a atividade florestal é uma opção viável para pequenas e médias propriedades rurais, principalmente com o sortimento da madeira / This study analyzes the production and economic payback from a reforestation of 12 years old Eucalyptus grandis crop in a rural area of Bofete town, state of São Paulo. The main objective was to compare the economic payback when using the same forest stand for different marketing strategies, as a single product or marketing of multiproduct from a diametric selection for purposes of power generation or processing of wood in sawmills. Five marketing strategies were defined and specified through the timber volume measured by a taper model with polynomial of 5th degree, the definition of deployment costs, changes in harvesting costs arising from the different assortments, and revenues achieved from the prices of marketed products. The economic indicators that were calculated are: Net Present Value (R$ ha-1), Soil Expected Value (R$ ha-1) and Payback Internal Rate (%), assuming a discount rate of 7.25%. The analysis showed Net Present Value ranging from 3,626.37 R$ ha-1 to 5,539.60 R$ ha-1, Soil Expected Value between 6,753.67 R$ ha-1 and 10,316.82 R$ ha-1, and Payback Internal Rate of 13.30% to 15.58%, being multiproduct strategies those who achieved better payback in all methods. It can be concluded that all strategies had positive economic results, so that forestry is a viable option for small and medium farms, especially with the assortment of wood
24

Flicker prediction techniques for sawmills

Jeffries, Ismail January 2003 (has links)
Thesis (MTech (Electrical Engineering))--Cape Technikon, Cape Town, 2003 / The aim of the thesis is to investigate and develop a technique for predicting the flicker emission of sawmill loads. The technique makes use of an empirical formula to calculate the characteristic coefficient of a sawmill motor (Ksm) and depends upon the short term flicker severity level (Ps,), load size and fault level.Three types of sawmill loads are commonly found in South Afiican plants, namely the Circular, Multi-rip, and Frame Saws. A sawmill plant was selected as a benchmark and Ksm factors for these types of saws were calculated by application of the empirical formula. These Ksm factors are required for predicting the flicker emitted by similar saws at other sawmill plants.A flicker meter was used to measure the flicker values (PsI) for these saws. Fault levels were calculated for various sawmill sites investigated. Load sizes were determined and the empirical formula used to calculate the Ksm factors. These Ksm factors were then compared to those calculated at the benchmark sawmill in order to determine the accuracy of the empirical formula.Nine case studies were conducted. The sawmills selected for these investigations were in different geographical forest areas in South Afiica. Different Ksm factors were found and this can be attributed to the differences in the density and hardness of the wood in the various areas. It can also be attributed to the mechanical variables of the saws. However, a comparative analysis of the Ksm factors comparison reveal that many Ksm factors fall within a similar range and for planning purposes 88,19 and 111 can be used for the Circular, Multi-rip, and Frame Saws, respectively.The results obtained demonstrate that the developed flicker emission prediction technique for sawmills is an effective analytical tool to be used for planning the network to ensure that the flicker levels will remain within acceptable limits.
25

Proposta de otimização para reflorestamento de eucalipto utilizando multiprodutos /

Sartori, Maurício Scorsatto, 1970- January 2013 (has links)
Orientador: Magali Ribeiro da Silva / Coorientador: Luiz Carlos Faria / Banca: Rodrigo de Menezes Trigueiro / Banca: Danilo Simões / Banca: Luiz Cesar Ribas / Banca: Renata Cristina Batista Fonseca / Resumo: Este estudo analisa a produção e o retorno econômico de um reflorestamento de Eucalyptus grandis com 12 anos de idade em uma propriedade rural no município de Bofete, estado de São Paulo. O objetivo principal foi comparar o retorno econômico quando se utiliza um mesmo povoamento florestal para diferentes estratégias de comercialização, como de um único produto ou a comercialização de multiprodutos a partir de uma seleção diamétrica, com propósitos de geração de energia ou processamento da madeira em serrarias. Foram definidas e caracterizadas cinco estratégias de comercialização através do volume de madeira quantificado por um modelo de afilamento com polinômio de 5º grau, do levantamento dos custos de implantação, variações nos custos de colheita decorrentes dos diferentes sortimentos, e receitas alcançadas a partir dos preços dos produtos comercializados. Os indicadores econômicos calculados foram o Valor Presente Líquido (R$ ha-1), Valor Esperado da Terra (R$ ha-1) e Taxa Interna de Retorno (%), considerando-se uma taxa de desconto de 7,25%. Como resultados foram encontrados Valor Presente Líquido que variaram entre R$ 3.626,37 ha-1 e R$ 5.539,60 ha- 1, Valor Esperado da Terra entre R$ 6.753,67 ha-1 e R$ 10.316,82 ha-1, e Taxa Interna de Retorno de 13,30% a 15,58%, sendo as estratégias com multiprodutos aquelas que apresentaram retornos superiores em todos os métodos. Pode-se concluir que todas as estratégias apresentaram resultados econômicos positivos, de modo que a atividade florestal é uma opção viável para pequenas e médias propriedades rurais, principalmente com o sortimento da madeira / Abstract: This study analyzes the production and economic payback from a reforestation of 12 years old Eucalyptus grandis crop in a rural area of Bofete town, state of São Paulo. The main objective was to compare the economic payback when using the same forest stand for different marketing strategies, as a single product or marketing of multiproduct from a diametric selection for purposes of power generation or processing of wood in sawmills. Five marketing strategies were defined and specified through the timber volume measured by a taper model with polynomial of 5th degree, the definition of deployment costs, changes in harvesting costs arising from the different assortments, and revenues achieved from the prices of marketed products. The economic indicators that were calculated are: Net Present Value (R$ ha-1), Soil Expected Value (R$ ha-1) and Payback Internal Rate (%), assuming a discount rate of 7.25%. The analysis showed Net Present Value ranging from 3,626.37 R$ ha-1 to 5,539.60 R$ ha-1, Soil Expected Value between 6,753.67 R$ ha-1 and 10,316.82 R$ ha-1, and Payback Internal Rate of 13.30% to 15.58%, being multiproduct strategies those who achieved better payback in all methods. It can be concluded that all strategies had positive economic results, so that forestry is a viable option for small and medium farms, especially with the assortment of wood / Doutor
26

Application of simulation technique in the study of sawmill productivity

Aune, Jan Erik January 1973 (has links)
A computer simulation program which models the operation of a British Columbia coast dimension sawmill has been developed in FORTRAN IV. The model represents the initial log breakdown by a double cut, multi-pass band headrig, cant breakdown by a bulledger and the further processing on two resaws, pony edger and the double end trimsaw. Simulation of the headrig and bulledger operation is event oriented, whereas the piece flow through the other processing units is updated with 1-minute intervals. Flowcharts describe the routines briefly. The principal types of data input are sawlog population characteristics, machine characteristics, buffer storage capacities, and product output constraints. Information about the model operation is collected during the simulation runs, and the printed output includes productivity in Mbfm per 8-hour shift, the time each saw was operating, idle, busy or blocked, the time the bulledger queue contained a given number of cants and histograms showing the queue length distribution in 10-piece classes for subsequent saws. Validation of the model plays an important part in system simulation. The approach has been to attempt a verification of the piece flow arriving at trimmer, #l and #2 resaw, ponyedger and greenchain. Although the productivity figures obtained from simulation correspond to those experienced by the mill, the piece flow could not be verified. Irregular log shape, not reflected in the sawlog population characteristics and leading to more manufacturing of slabs in the real system, is considered to be the principal factor contributing to this. Preferably, further modelling should lead to the development of one general assembly-system, which regards sawmills as a collection of interconnected components, with increased input and output flexibility. / Forestry, Faculty of / Graduate
27

Environmental Aspects Review : A Case Study of Two Sawmills in Etsako-West, Edo State Nigeria

Anavberokhai, Isah O. January 2008 (has links)
<p>The forests are essential for healthy environment. Trees which are part of the</p><p>forest help to stabilize the forest soil, improve soil fertility, reduce the velocity of</p><p>wind, protect watershed and reduce the amount of carbon released into the</p><p>atmosphere. Many industries use trees as raw materials and in most cases impact</p><p>the environment, but there are great differences in the impact they make. There is</p><p>a need therefore to continually evaluate the operational activities of these</p><p>industries to ensure that the environment is protected. The use of environmental</p><p>management systems like ISO and EMAS standards has helped in the evaluation</p><p>of organizations and industries.</p><p>In this thesis, two sawmills Iretunde and Irepodun in Etsako-West local</p><p>government area Edo state Nigeria were evaluated with the aim to determine their</p><p>operational activities and how the environment is being affected by them. Subaims</p><p>were to determine the most significant environmental aspects of the sawmill</p><p>and their organizational structure. In actualizing the aim of this thesis, literature</p><p>review, site investigation as well as oral interview of the staff and management of</p><p>both sawmills were conducted. In the evaluation of the environmental aspects, the</p><p>detailed method of environmental impact evaluation by Ammenberg (2004) was</p><p>used were each environmental aspect that was weighted against nine identified</p><p>criteria.</p><p>The result obtained from the environmental aspect evaluation of both sawmills</p><p>shows that the use of raw materials and emissions to air are the most significant</p><p>environmental aspects. In conclusion, it was observed that the both sawmills are</p><p>well structured and carry out their operational activities effectively. Neither of</p><p>them has registered under any environmental management system but there is a</p><p>need for them to do so in order to help check their operational activities in order to</p><p>reduce their environmental impact.</p>
28

A case study of organizational culture in a sawmill

Chaney, Brian K. 06 August 2001 (has links)
The purpose of this study was to describe the level to which a target work culture based on core organizational values was shared in one lumber manufacturing plant. The organization under study perceived that their culture was a source of competitive advantage and was key to their success in safety, product quality, and labor-relations. The organization had actively managed their culture through operations management and human resource policies. The study addressed three research questions (1) to what extent were the core values of the organization shared, (2) were there any inconsistent values, and (3) did organizational members perceive their culture as helping or hurting their plant's performance outcomes. The study found eight of the nine values were shared across the organization. The values of safety and customer satisfaction were strongly shared. The value of environmental stewardship was not apparent in the organization. The organization perceived that its culture helped the mill success in key performance outcomes by promoting teamwork, participation, and communication. For the values of communication, involvement, trust, and respect there were perceptions of inconsistency between the target culture's definition of the value and its actual practice. The study provides support that culture may have an influence on organizational effectiveness. / Graduation date: 2002
29

Environmental Aspects Review : A Case Study of Two Sawmills in Etsako-West, Edo State Nigeria

Anavberokhai, Isah O. January 2008 (has links)
The forests are essential for healthy environment. Trees which are part of the forest help to stabilize the forest soil, improve soil fertility, reduce the velocity of wind, protect watershed and reduce the amount of carbon released into the atmosphere. Many industries use trees as raw materials and in most cases impact the environment, but there are great differences in the impact they make. There is a need therefore to continually evaluate the operational activities of these industries to ensure that the environment is protected. The use of environmental management systems like ISO and EMAS standards has helped in the evaluation of organizations and industries. In this thesis, two sawmills Iretunde and Irepodun in Etsako-West local government area Edo state Nigeria were evaluated with the aim to determine their operational activities and how the environment is being affected by them. Subaims were to determine the most significant environmental aspects of the sawmill and their organizational structure. In actualizing the aim of this thesis, literature review, site investigation as well as oral interview of the staff and management of both sawmills were conducted. In the evaluation of the environmental aspects, the detailed method of environmental impact evaluation by Ammenberg (2004) was used were each environmental aspect that was weighted against nine identified criteria. The result obtained from the environmental aspect evaluation of both sawmills shows that the use of raw materials and emissions to air are the most significant environmental aspects. In conclusion, it was observed that the both sawmills are well structured and carry out their operational activities effectively. Neither of them has registered under any environmental management system but there is a need for them to do so in order to help check their operational activities in order to reduce their environmental impact.
30

Uncovering Mill Point: Understanding Concepts of Space at Australian Historic Sawmills

Rae, Emma M. Unknown Date (has links)
In this thesis I use a predictive modelling framework to explore the use of space at nineteenth and early twentieth century Australian sawmills. Sawmills were a key component of early European settlement in heavily forested areas and are often associated with the development of significant infrastructure, such as roads and rail and sea transport networks. Despite their importance and potential for enhancing our understanding of early European communities, few studies have been undertaken on historical sawmills in Australia, particularly in relation to spatial organisation on a comparative level. A dataset of 20 nineteenth and early twentieth century sawmills was analysed and sawmills were found to fall into one of four main types ranging from small scale temporary establishments (Type A) to large, permanent sawmills with multi-faceted settlements and permanent infrastructure and support services (Type D). Analysis also revealed that sawmill features were spatially organised into industrial, intermediate and domestic zones. The model is applied to a case study, the Mill Point sawmill in southeast Queensland and results suggest a general validity of the predictive model and point to directions for further refinement and development. The study has implications for future studies of early industrial enterprises in Australia.

Page generated in 0.0844 seconds