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Filtering by: Creator Demessie, E. Sahle Remove constraint Creator: Demessie, E. Sahle Peer Reviewed No Remove constraint Peer Reviewed: No

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Dynamic modeling of thermal treatment of timber poles

Creator:

Sahle-Demessie, Endalkachew

Abstract:

The temperature-time-location relationships during steam conditioning and pressure treatment of timber poles have been studied and mathematical models that take into account both the thermal properties of the poles and the parameters of the treatment process have been developed. Although much work has been previously done in this area, the...

Resource Type:

Masters Thesis

Full Text:

ABSTRACT OF THE THESIS OF Endalkachew Sahle-Demessie for the degree of Master of Science in Chemical
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
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

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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
Phase behavior of multicomponent mixtures of complex molecules in supercritical fluids

Creator:

Hassan, Ali (Ali Humaid)

Resource Type:

Dissertation

Full Text:

Professor, representing Chemical Engineering Chair of Department of Chemical Engineering Dean of Grad e
The effects of supercritical CO₂ on the bending properties and treatment defects of four refractory wood species

Creator:

Anderson, Matthew E.

Abstract:

It is difficult to treat the heartwood of many wood species with liquid preservatives using conventional liquid processes. Supercritical fluids (SCF) used as carriers of preservatives to impregnate refractory wood species may be an attractive alternative to conventional liquid carriers. While SCF impregnation has many potential advantages, some wood species...

Resource Type:

Masters Thesis

Full Text:

privacy. AN ABSTRACT OF THE THESIS OF Matthew E. Anderson for the degree of Master of Science in Forest
Diffusion coefficients of biocides in supercritical carbon dioxide

Creator:

Kittidacha, Witoon

Resource Type:

Masters Thesis

Full Text:

Appendix D : Critical Properties Estimation ..................................... 57 Appendix E
Itraconazole formation using supercritical carbon dioxide

Creator:

Tang, Yi-Min

Resource Type:

Masters Thesis
Supercritical fluid impregnation with biocides of wood using temperature reduction

Creator:

Kang, Sung-Mo

Abstract:

Supercritical fluid (SCF) impregnation is a promising preservative treatment method, however, the development of SCF processes has been slowed by a limited understanding of the process. Developing a better understanding of the effects of various process parameters on treatment results would allow for a more rational development of SCF impregnation....

Resource Type:

Dissertation

Full Text:

materials including preservatives from wood (Levien et al., 1994; Ruddick and Cui, 1995; Sahle-Demessie at

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Academic Affiliation

Chemical Engineering7
College of Pharmacy4
Chemistry1
Environmental and Molecular Toxicology1
Forest Products1
more Academic Affiliations »

Advisor

Levien, Keith L.6
Mahmud, Taifo4
Maes, Kenneth2
Morrell, Jeffrey J.2
Taratula, Oleh2
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Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1990 to 2023

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Unknown 2

Committee Member

Alani, Adam2
Philmus, Benjamin2
Becker, Lawrence1
Blakemore, Paul R.1
Claudia Hase1
more Committee Members »

Creator

Sahle Demessie, Endalkachew2
Abdullah, Alanzi R.1
Anderson, Matthew E.1
Arefaine, Micknai1
Baranski, Emily A.1
more Creators »

Contributor

Abugrain, Mostafa1
Gidey, Fana1
Gidey, Samira1
Mahmud, Taifo1

Date

Date range begin – Date range end

Current results range from 1989 to 2023

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Decade

2020-20297
2010-20196
2000-20092
1990-19997
1980-19891

Degree Field

Chemical Engineering7
Pharmaceutical Sciences4
BioResource Research2
Applied Anthropology1
Chemistry1
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Degree Level

Doctoral8
Master's8
Bachelor's5

Degree Name

Doctor of Philosophy (Ph.D.)8
Master of Science (M.S.)7
Honors Bachelor of Science (H.B.S.)4
Bachelor of Science (B.S.)1
Master of Arts (M.A.)1

File Format

application/pdf1
pdf1

Language

English [eng]23

License

All rights reserved8
Attribution 4.0 (CC BY 4.0)2

Non-Academic Affiliation

Oregon State University. Graduate School9
Oregon State University. Honors College4
Oregon State University. Bioresource Research2
Oregon State University. Libraries1
Oregon State University. Press1
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Peer Reviewed

No[remove]23

Resource Type

Dissertation8
Masters Thesis8
Honors College Thesis4
Book1
Other1
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Rights Statement

In Copyright16
Copyright Not Evaluated7

Subject

Supercritical fluids5
Wood -- Preservation3
Douglas fir2
Antifungal agents1
Carbon dioxide1
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