Index Catalog // ScholarsArchive@OSU

Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

Creator:: Wilson, Cameron A.
Abstract:: High early strength (HES) concrete is becoming increasingly used to repair damaged concrete pavement sections. The use of HES concrete enables the repaired pavement to be opened to traffic within hours of placing the concrete. A common approach used for the rapid repair of concrete pavement consists of closing a...
Resource Type:: Masters Thesis

Institutional Path Dependence in NASA’s Human Spaceflight Program: A Case Study of Technological Evolution and Persistence

Creator:: Waddell, Trevor W.
Abstract:: Despite extensive research on the historical and technical aspects of national space policy, little has attempted to understand the links between technological evolution in NASA’s spaceflight program in relation to its administrative, political and economic context. This essay explores these connections in the development and evolution of core systems in...
Resource Type:: Capstone Project
Full Text:: _________________________________________________________________ Jack Higginbotham, representing College of Science, Space Programs

Determining contact angle of solutions with varying surface tension on dry and pre-wetted silica sands

Creator:: McGinnis, Thomas L.
Abstract:: Infiltration of highly concentrated solutions into unsaturated sand is suspected to be affected by the liquid-gas interfacial tension between the resident water and that of the infiltrating solution. The wetting of non-porous solid surfaces by liquids is commonly quantified by contact angle measurements. However, it is well known that wettability...
Resource Type:: Masters Thesis
Full Text:: appreciated. I want to thank Maria Dragila and Jack Higginbotham for serving on my committee. Maria provided

Determination of effective doses from radionuclides in the Columbia River sediments

Creator:: Wu, Renpo
Resource Type:: Masters Thesis
Full Text:: my graduate committee. I would like to thank Dr. Jack F. Higginbotham, Dr. Shoichi Kimura for

Exile in one's homeland : Yung Wing and the Chinese Educational Mission

Creator:: Yao, Yingxia
Abstract:: This thesis examines the influence of Christian missions on Yung Wing (1828-1912) during the nineteenth century, when China was beginning to encounter the West. Yung was the first Chinese graduate student to enter an American institution of higher education (Yale College, 1854). As a Westernized Christian intellectual, he strove to...
Resource Type:: Masters Thesis
Full Text:: his class will, I believe, benefit me for the rest of my life. I also thank Jack Higginbotham for

Developing safety performance functions for 4-leg single-lane roundabouts based on Oregon data : a case study

Creator:: Zheng, Jianfei
Abstract:: Roundabouts have become an alternative for traditional intersections due to the safer operational performance. Previous research has provided crash modification factors (CMFs) as a criterion based on before-after studies as to evaluate the safety performance of roundabouts. One drawback of assessment based on crash modification factors, however, is that a...
Resource Type:: Masters Thesis
Full Text:: thank Dr. Hurwitz, Dr. Di and Dr. Higginbotham who could take their valuable time as my defense

The use of ⁶⁰Co cell survival curves in BNCT research

Creator:: Johnson, Jennifer Elizabeth
Abstract:: The cell survival curve is the only means by which to both qualitatively and quantitatively assess morphologic alterations directly resulting from in vitro irradiation of the cell. A ⁶⁰Co cell survival curve experiment has successfully demonstrated the response of the AtT-20 clone mammalian cell line to the effects of gamma...
Resource Type:: Masters Thesis
Full Text:: several calculations. Third, thanks to all committee members, (Dr. John Ruben, Zoology; Dr. Jack

Analysis and measurement of charge injection in switched-capacitor circuits

Creator:: Shen, Min
Abstract:: It has been verified by theoretical analysis, circuit simulation and test that two switch transistors in parallel in a simple sample and hold circuit can be achieve high speed with low error voltage due to charge injection. The wide transistor provides low RC time constant when it is closed and...
Resource Type:: Masters Thesis
Full Text:: , Professor Un-Ku Moon and Professor Jack Higginbotham for taking time to serve on my graduate committee and

The genesis of the San Vicente lead zinc rhythmite deposit, Peru : a petrologic, geochemical, and sulfur isotope study

Creator:: Schütfort, Erwin G.
Abstract:: The San Vicente zinc lead deposit is located in the Eastern Andes of Central Peru. The deposit is an epigenetic Mississippi Valley-type deposit based on stratigraphic, geologic, petrographic, and geochemical evidence. The dolomite host rocks of the Pucara Group are of Triassic-Jurassic age. The source of metals are red sandstones...
Resource Type:: Masters Thesis
Full Text:: , scientific inquiry, and geologic writing. My committee members John Dilles, Roger Nielsen, and Jack

Multi-mode resource-constrained project scheduling problem with resource vacations and task splitting

Creator:: Buddhakulsomsiri, Jirachai
Abstract:: The research presented in this dissertation addresses the Multi-Mode Resource-Constrained Project Scheduling Problem (MMRCPSP) in the presence of resource unavailability. This research is motivated by the scheduling of engineering design tasks in automotive product development to minimize the project completion time, but addresses a general scheduling situation that is applicable...
Resource Type:: Dissertation
Full Text:: . Daniel Schafer for his guidance on statistical aspect of this work; Dr. Kimberly Douglas and Dr. Jack

ScholarsArchive@OSU

Improving the Performance of High Early Strength Concrete by Controlling Self-Desiccation and Mitigating Shrinkage

Institutional Path Dependence in NASA’s Human Spaceflight Program: A Case Study of Technological Evolution and Persistence

Determining contact angle of solutions with varying surface tension on dry and pre-wetted silica sands

Determination of effective doses from radionuclides in the Columbia River sediments

Exile in one's homeland : Yung Wing and the Chinese Educational Mission

Developing safety performance functions for 4-leg single-lane roundabouts based on Oregon data : a case study

The use of ⁶⁰Co cell survival curves in BNCT research

Analysis and measurement of charge injection in switched-capacitor circuits

The genesis of the San Vicente lead zinc rhythmite deposit, Peru : a petrologic, geochemical, and sulfur isotope study

Multi-mode resource-constrained project scheduling problem with resource vacations and task splitting

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