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Filtering by: Committee Member Thomas, Christoph K. Remove constraint Committee Member: Thomas, Christoph K.

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Ammonia Volatilization from Nitrogen Fertilizers and Wastewater Reuse in the Columbia Basin

Creator:

Del Moro, Sarah K.

Abstract:

Ammonia (NH₃) volatilization and loss from nitrogen (N) fertilizer in agriculture negatively impacts crops, farm profitability, human health and surrounding ecosystems where it is deposited. A significant source of NH₃ volatilization occurs from surface application of urea on sandy soils with low pH buffering capacity such as those in the...

Resource Type:

Masters Thesis
Direction, method, and model for implementing design for construction worker safety in the US

Creator:

Tymvios, Nicholas

Abstract:

The construction industry employs about 7% of the total US workforce, and yet it accounts for 15.7% of all occupational fatalities. Specifically in 2011, there were 721 deaths in construction, second only to transportation with 733. The cause of a large number of these construction deaths can be attributed to...

Resource Type:

Dissertation
Impacts of dwarf mistletoe on the physiology of host Tsuga heterophylla trees as recorded in tree ring C and O stable isotopes

Creator:

Marias, Danielle E.

Abstract:

Dwarf mistletoes, obligate, parasitic plants with diminutive aerial shoots, have long-term effects on host tree water relations, hydraulic architecture, and photosynthetic gas exchange and can eventually lead to tree death. To investigate the long-term impacts of dwarf mistletoe on gas exchange of host western hemlock trees, I compared growth, gas...

Resource Type:

Masters Thesis
Development of an improved system for Oregon to accurately quantify dense-graded hot mix asphalt pavement density

Creator:

Darra, Suraj

Abstract:

The Oregon Department of Transportation (ODOT) standard specifications require a minimum density for the construction of dense-graded hot mix asphalt (HMA) pavements. Currently, the standard specifications call for density measurements for quality control (QC) and quality assurance (QA) testing to be made using nuclear density gauges that are calibrated using...

Resource Type:

Masters Thesis

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Academic Affiliation

Civil and Construction Engineering1
Crop and Soil Science1
Forest Ecosystems and Society1
School of Civil and Construction Engineering1

Advisor

Gambatese, John A.1
Horneck, Donald A.1
Meinzer, Frederick C.1
Scholz, Todd V.1
Sullivan, Dan M.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2010 to 2016

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Committee Member

Thomas, Christoph K.[remove]4
Anthony, Veltri1
David, Rogge F.1
David, Sillars N.1
Gambatese, John A.1
more Committee Members »

Creator

Darra, Suraj1
del Moro, Sarah K.1
Marias, Danielle E.1
Tymvios, Nicholas1

Date

Date range begin – Date range end

Current results range from 2009 to 2015

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Decade

2010-20193
2000-20091

Degree Field

Civil Engineering2
Forest Ecosystems and Society1
Soil Science1

Degree Level

Master's3
Doctoral1

Degree Name

Master of Science (M.S.)3
Doctor of Philosophy (Ph.D.)1

Language

English [eng]4

License

All rights reserved4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No4

Resource Type

Masters Thesis3
Dissertation1

Rights Statement

In Copyright4

Subject

Agricultural pollution -- Columbia River Valley1
Ammonia -- Environmental aspects -- Columbia River Valley1
Building sites -- United States -- Safety measures1
Carbon -- Isotopes1
Construction industry -- United States -- Safety measures1
more Subjects »

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