The objectives of this study are to revise and reformulate a previous simulation model of the Calapooia River and proposed Holley Dam project and to critically investigate the anadromous fish enhancement function of the project. The Corps of Engineers proposes a 145,000 acre-foot reservoir for the Calapooia River at Holley, Oregon. Previously, a 97,000 acre-foot reservoir was proposed. The larger project's justification is based mainly on anadromous fish enhancement. Investigation revealed that there is a great deal of uncertainty and lack of information about: (1) temperature requirements of anadromous fish in the Calapooia River and whether they can be met, (2) the affects of high streamflow discharges on spawning, incubation, and rearing of anadromous fish in the Calapooia River, (3) the affects of variability in food supply due to fluctuations in the level of the water in the reservoir, and (4) the survival rates of salmon eggs to fry, fry to smolts, and ocean survival. A simulation model in DYNAMO computer language is formulated and includes the following components: (1) hydrology generator, (2) reservoir regulation and flood control procedures, (3) freshwater life cycle of Spring Chinook and Fall Chinook Salmon, (4) supply of recreation user days, (5) supply of resident fishing angler days, and (6) supply of irrigation water. The model calculates the daily, monthly, and yearly variability of various physical, economic, and intangible outcomes. The simulation of floods and their regulation corresponds to historical data and regulation hypothesized by the Corps of Engineers. The dynamic nature of the Spring and Fall Chinook Salmon populations are modeled and computer results indicate that the likelihood of conservation and enhancement is not great enough to justify the 145,000 acre-foot reservoir. Due to the fluctuations in the reservoir level which accompany flood control regulation and reflect the variability in the hydrology, the recreational use and resident fishing angler use is highly variable and the average use is unlikely to reach the estimated supply potential. The reservoir, as simulated by the model, has sufficient capacity to supply water for the proposed irrigation project. However, it appears that uncertainty remains concerning the dollar benefits that are obtainable from irrigating soils along the Calapooia River. Further study is necessary to determine whether the 97,000 acre-foot reservoir is a feasible alternative to the proposed 145,000 acre-foot reservoir. The computer model is general in formulation and can be utilized to provide information to decision makers in determining the feasibility of further dam and reservoir construction. / Graduation date: 1972

No description available.

Report (M.S.)--Virginia Polytechnic Institute and State University. M.S. 1991. / Vita. Abstract. Includes bibliographical references (leaves 72-73). Also available via the Internet.

Thesis (Ph.D)--Aerospace Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Costello, Mark. Part of the SMARTech Electronic Thesis and Dissertation Collection.

A new hybrid micro vehicle, called the Hopping Rotochute, was developed to robustly explore environments with rough terrain while minimizing energy consumption over extended periods of time. Unlike traditional robots, the Hopping Rotochute maneuvers through complex terrain by hopping over or through impeding obstacles. A small coaxial rotor system provides the necessary lift while a movable internal mass controls the direction of travel. In addition, the low mass center and egg-like shaped body creates a means to passively reorient the vehicle to an upright attitude when in ground contact while protecting the rotating components. The design, fabrication, and testing of a radio-controlled Hopping Rotochute prototype as well as an analytical study of the flight performance are documented. The aerodynamic, mechanical, and electrical design of the prototype is outlined which were driven by the operational requirements assigned to the vehicle. The aerodynamic characteristics of the rotor system as well as the damping characteristics of the foam base are given based on experimental results using a rotor test stand and a drop test stand respectively. Experimental flight testing results using the prototype are outlined which demonstrate that all design and operational requirements are satisfied. A dynamic model associated with the Hopping Rotochute is then developed including a soft contact model which estimates the forces and moments on the vehicle during ground contact. A comparison between the vehicle's motion measured using a motion capture system and the simulation results are presented to determine the validity of the experimentally-tuned dynamic model. Using this validated simulation model, key parameters such as system weight, rotor speed profile, internal mass weight and location, as well as battery capacity are varied to explore the flight performance characteristics. The sensitivity of the hopping rotochute to atmospheric winds is also investigated as well as the ability of the device to perform trajectory shaping.