Index Catalog // ScholarsArchive@OSU

The value of improved ENSO forecasts : a stochastic bioeconomic model applied to the Pacific Northwest coho salmon fishery

Creator:: Costello, Christopher J
Abstract:: See pdf
Resource Type:: Masters Thesis
Full Text:: Christopher J. Costello for the degree Of Master of Science in

Optimally managing a stochastic renewable resource under general economic conditions

Creator:: McGough, Bruce, Plantinga, Andrew J., and Costello, Christopher
Abstract:: Empirical evidence indicates that environmental fluctuations have important effects on fisheries production. However, existing analytical solutions of stochastic fisheries models have been produced only under highly simplified economic and biological conditions. The main contribution of this paper is to derive under general conditions a policy function for the management of...
Resource Type:: Article
Full Text:: Economic Conditions Bruce McGough∗ Andrew J. Plantinga† Christopher Costello‡ ∗Oregon State University

Investing in Fishery Recovery

Creator:: Costello, Christopher
Abstract:: We examine the status of the world's fisheries and the potential for economic and ecological benefits from fishery management reforms. Global fisheries are at a crossroads - they are on average overexploited, suggesting a global benefit from recovery. But many fisheries are already biologically sustainable. Even in these fisheries, economic...
Resource Type:: Presentation
Full Text:: Recovery Christopher Costello University of California, Santa Barbara & National Bureau of Economic

Fishery Management with Environmental Prediction

Creator:: Costello, Christopher, Polasky, Steven, and Solow, Andrew
Abstract:: In this paper, we use a common renewable resource model with stochastic growth to obtain three main results. First, we demonstrate that predictions of poor future environmental conditions lead to lower desired escapement (i.e., low remaining resource stock in place after harvest) and higher current harvest. At first glance, it...
Resource Type:: Conference Proceeding
Full Text:: Proceedings Fishery Management with Environmental Predictioni Christopher Costello (UC Santa Barbara

Human gait analysis by gait pattern measurement and forward dynamic model combined with non linear feedback control

Creator:: Ko, Seung-uk
Abstract:: Normal gait of human is believed to be an adapted motor control result of optimal behavior of individual. Normal gait would be altered by aging or injury without being perceived. Subtle changes in gait which is not easy to detect, can cause many serious problems including joint pains and even...
Resource Type:: Dissertation
Full Text:: : _______________________________________________________________ Mark F. Costello Normal gait of human is believed to be an adapted motor control result

Optimal soaring by a small autonomous glider

Creator:: Kyle, Jason A.
Abstract:: Extending the flight time of an autonomous unmanned air vehicle by soaring is considered. A suboptimal controller is developed and successful static soaring is demonstrated with a 6 degree of freedom glider model. Altitude gain rates of between ¼ and ½ m/s are achieved with this simple implementation. A hybrid...
Resource Type:: Dissertation
Full Text:: . Abstract approved: __________________________________________________ Mark F. Costello

Suitability of diverse composts as soil amendments for highbush blueberry (Vaccinium corymbosum L.)

Creator:: Costello, Ryan C.
Abstract:: Highbush blueberry (Vaccinium corymbosum L.) is adapted to soils with high organic matter and acidic pH. Composts provide organic matter and nutrients for growing blueberry in mineral soils, but many composts are high in pH and soluble salts. Acidification with elemental sulfur (S°) can remedy high pH, but the process...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Ryan C. Costello for the

A water balance model for reforestation sites : description and sensitivity

Creator:: Costello, Craig
Abstract:: A model was developed for analysis of the soil water balance of individual reforestation sites in western Oregon. The numerical procedure for this model was programmed in compiled BASIC language and calculations for an entire season are made in about 180 seconds on an IBM AT microcomputer. The processes that...
Resource Type:: Masters Thesis
Full Text:: : description and sensitivity AN ABSTRACT OF THE THESIS OF Craig Costello for the degree of Master of Science

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Creator:: Costello, Denise H.
Abstract:: The Water, Sanitation and Hygiene (WASH) sector of international development works to increase access to sustainable, safe water and improved sanitation. Currently, at least 780 million people live without clean drinking water and 2.5 billion without access to improved sanitation (UNICEF & World Health Organization, 2012). Lack of access to...
Resource Type:: Masters Thesis
Full Text:: AN ABSTRACT OF THE THESIS OF Denise H. Costello for the

Dynamic modeling, control aspects and model predictive control of a parafoil and payload system

Creator:: Slegers, Nathan J.
Abstract:: Control issues are investigated for a parafoil and payload system with left and right parafoil brakes used as the control mechanism. It is shown through dynamic modeling and simulation that parafoil and payload systems can exhibit two basic modes of lateral control, namely, roll and skid steering. Using a small...
Resource Type:: Dissertation
Full Text:: Nathan J. Slegers for the degree of Doctor of Philosophy in

ScholarsArchive@OSU

The value of improved ENSO forecasts : a stochastic bioeconomic model applied to the Pacific Northwest coho salmon fishery

Optimally managing a stochastic renewable resource under general economic conditions

Investing in Fishery Recovery

Fishery Management with Environmental Prediction

Human gait analysis by gait pattern measurement and forward dynamic model combined with non linear feedback control

Optimal soaring by a small autonomous glider

Suitability of diverse composts as soil amendments for highbush blueberry (Vaccinium corymbosum L.)

A water balance model for reforestation sites : description and sensitivity

An evaluation of a water, sanitation, and hygiene (WASH) program for rural communities in northern Afghanistan

Dynamic modeling, control aspects and model predictive control of a parafoil and payload system

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