Index Catalog // ScholarsArchive@OSU

Conserving energy by environmentally acceptable practices in maintaining and procuring transmission poles for long service ; August 1990

Creator:: Morrell, Jeffrey J., Corden, M. E. (Malcolm E.), and Oregon State University. Department of Forest Products
Abstract:: Evaluations of previously established field trials indicate that chioropicrin, and Vorlex continue to provide protection to Douglas-fir poles, although the degree of protection is diminishing. Reapplication of Vapam 18 years after the initial application eliminated fungi which had recolonized the poles. Methylisothiocyanate (MITC) continues to protect Douglas-fir poles 12 years...
Resource Type:: Technical Report
Full Text:: Service (Forest Pathologist) W. E. Eslyn, U.S. Forest Products Laboratory (Forest Products Pathologist

Supercritical fluid (SCF) treatment: Its effect on bending strength and stiffness of ponderosa pine sapwood

Creator:: Smith, Susan M., Demessie, E. Sahle, Morrell, Jeffrey J., Levien, Keith L., and Ng, Harry
Abstract:: Adverse effects on mechanical properties from using a supercritical fluid (SCF) to increase preservative penetration of refractory woods were evaluated by treating small ponderosa pine sapwood specimens with supercritical carbon dioxide at 64 combinations of temperatures (35 to 80 C), pressure (1,000 to 4,000 psig), and time (0.5 to 2...
Resource Type:: Article
Full Text:: of Forest Products Oregon State University Corvallis, OR 9733 1 E. Sahle Demessie Graduate

The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide

Creator:: Yi, Jung-Seok
Abstract:: The extraction of pentachlorophenol (PCP) from pressure treated wood wafers with supercritical carbon dioxide has been studied. Experimental data were obtained for the effects of pressure (17.5 - 25.0 MPa), temperature (313 - 353 K), flow rate (1 - 3 ml/min at supercritical conditions), and sample size (0.8 x 10...
Resource Type:: Masters Thesis
Full Text:: throughout my studies. Special thanks are due to Endalkachew Sahle-Demessie and other colleagues of my

1992-1994 Biennial bibliography / Forest Research Laboratory

Creator:: Oregon State University. Forest Research Laboratory
Resource Type:: Other

OSU theses and dissertations : 1983-1992

Creator:: Glenn, Judith A.
Abstract:: Departmental and author index of Masters' theses and doctoral dissertations accepted by the Graduate School.
Resource Type:: Book
Full Text:: . 27 Niklitschek, Mario E. Exact welfare measurement: theory and application to recreation economics

Deposition of chemicals in semi-porous solids using supercritical fluid carriers

Creator:: Sahle-Demessie, Endalkachew
Resource Type:: Dissertation
Full Text:: supercritical fluid carriers AN ABSTRACT OF THE THESIS OF Endalkachew Sahle-Demessie for the degree of Doctor

Solubility of biocides in pure and modified supercritical carbon dioxide

Creator:: Junsophonsri, Sarawadee
Resource Type:: Masters Thesis
Full Text:: great thanks also to Endalkachew Sahle-Demessie and the group of the supercritical fluid lab for the

Supercritical carbon dioxide treatment: Effect on permeability of Douglas-fir heartwood

Creator:: Demessie, Endalkachew Sahle, Hassan, Ali, Levien, Keith L., Kumar, Satish, and Morrell, Jeffrey J.
Abstract:: The effect of supercritical fluid treatment on superficial gas permeability of Douglas-fir was investigated by using carbon dioxide either alone or amended with methanol. Permeability increased in a majority of samples, although nearly one-third of the specimens declined in permeability. Improvements in permeability appeared to be unrelated to variations in...
Resource Type:: Article
Full Text:: OF DOUGLAS-FIR HEARTWOOD1 Endalkachew Sahle Demessie Graduate Research Assistant Ali Hassan

Wood pole maintenance manual

Creator:: Morrell, Jeffrey J. and Oregon State University. Forest Research Laboratory
Abstract:: The specification, inspection, and remedial treatment of utility poles are addressed. Included are discussions of enhancing specifications for improved performance, techniques for detecting decay and other defects, and chemical treatments available for arresting decay of poles in service.
Resource Type:: Technical Report

Effects of supercritical fluid treatments on physical properties of wood-based composites

Creator:: Acda, Menandro N., Morrell, Jeffrey J., and Levien, Keith L.
Abstract:: The effects of supercritical fluid (SCF) impregnation on physical properties of composites were investigated at various pressures, temperatures, and treatment times with carbon dioxide as the fluid and tebuconazole as a biocide. In general, within the ranges tested, SCF treatment had no negative effects on modulus of rupture (MOR), modulus...
Resource Type:: Article
Full Text:: solution (Sahle-Demessie 1994). The biocide-laden mixture was then introduced into the treatment vessel

ScholarsArchive@OSU

Conserving energy by environmentally acceptable practices in maintaining and procuring transmission poles for long service ; August 1990

Supercritical fluid (SCF) treatment: Its effect on bending strength and stiffness of ponderosa pine sapwood

The extraction of pentachlorophenol from pressure treated wood using supercritical carbon dioxide

1992-1994 Biennial bibliography / Forest Research Laboratory

OSU theses and dissertations : 1983-1992

Deposition of chemicals in semi-porous solids using supercritical fluid carriers

Solubility of biocides in pure and modified supercritical carbon dioxide

Supercritical carbon dioxide treatment: Effect on permeability of Douglas-fir heartwood

Wood pole maintenance manual

Effects of supercritical fluid treatments on physical properties of wood-based composites

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