Index Catalog // ScholarsArchive@OSU

Micro Hydro Penstock Design

Creator:: von Flotow, Andreas
Abstract:: Part of the infrastructure of a disused mill in Dee, Oregon is being converted into a hydroelectric power station. A turbine and generator combination must be selected to match the flow and pressure at the bottom of the penstock. One old penstock route is being abandoned and replaced with a...
Resource Type:: Research Paper
Full Text:: available hydraulic power prediction Andreas von Flotow Spring Term 2012 June 2, 2012

Estimating harvest rates to assess the efficacy of marine reserves in the Santa Barbara Channel Islands

Creator:: Yamane, Mark T.
Abstract:: Marine protected areas (MPAs) are used in ecosystem-based management (EBM) to increase the abundance and biomass of targeted species and protect their ecosystems by restricting certain human activities. Marine reserves (i.e. no-take MPAs) aim to achieve this by prohibiting harvest in the area. While MPAs are currently evaluated through assessments...
Resource Type:: Research Paper
Full Text:: Mark T. Yamane1 | J. Wilson White2 | Jennifer E. Caselle3 1Department of Marine Science, Eckerd

The Economic Loss in Thai Fisheries

Creator:: Tokrisna, Ruangrai
Abstract:: Main fishing gear in Thailand was otter board trawls. More than 70% of the total Thai fishing vessels had been using this fishing gear, as well as push net which was restricted targeting for demersal resources. Due to the 2.5 cm fine mesh size, juvenile economic species had been caught...
Resource Type:: Research Paper
Full Text:: growing to marketable size tΔ This could be calculated from von Bertalanffy growth

Recovering Fisheries from Crisis or Collapse: How to Shorten Impact Time of International Research Cooperation

Creator:: Nauen, Cornelia E., Christensen, Villy, Failler, Pierre, Opitz, Silvia, and Thatje, Sven
Abstract:: ICES – the International Council for the Exploration of the Sea – was founded more than a century ago out of concern for overfishing. However, today’s global marine ecosystems are for the most part in a degraded state, many alarmingly so. Why is the science used so little to make...
Resource Type:: Research Paper
Full Text:: RESEARCH COOPERATION Cornelia E. Nauen, European Commission, DG Research, International S&T Cooperation

Un manuscrit problématique d’Erec et Enide

Creator:: Carroll, Carleton W.
Abstract:: Keywords: manuscripts, Chrétien de Troyes, Erec et Enide, Arthurian literature in the Middle Ages
Resource Type:: Research Paper
Full Text:: r. tantost q. C │ clama H ; 1231–36 om. AV 3099 Ainz tint par les frains en sa main E + BP t

Combining Property Rights and Landings Taxes to Mitigate the Ecological Impacts of Fishing

Creator:: Smith, Martin D. and Gopalakrishnan, Sathya
Abstract:: Economists have long promoted fishery rationalization programs, but ITQs may fail to address the ecological consequences of fishing. Of particular concern is that economic incentives to harvest larger fish (due to size-dependent pricing or quota-induced discarding) can destabilize fish populations or lead to evolutionary changes. A substantial theoretical literature in...
Resource Type:: Research Paper
Full Text:: individual fishing quotas. Let t index time and i index individual fishing vessel. Suppose that each

A parallel intermediate representation based on Lambda expressions

Creator:: Oregon State University. Dept. of Computer Science and Budd, Timothy
Abstract:: The lambda calculus has frequently been used as an intermediate representation for programming languages, particularly for functional programming language systems. We introduce two simple extensions to the lambda calculus that describe potentially parallel computations. These extensions permit us to use the lambda calculus as an intermediate form for languages that...
Resource Type:: Research Paper
Full Text:: systems. The Von Neumann Bottleneck In his 1977 Turing Award lecture [Bac78] John Backus argued that

Economic Analysis of Polyculture Tilapia and Australian Redclaw Crayfish

Creator:: Coronado-Castro, Eva, Silva-Ledezma, Laura, and Gasca-Leyva, Eucario
Abstract:: The present paper studied system viability of tilapia nilotica and Australian redclaw crayfish in polyculture, considering tialpia as main species. Three scenarios were analyzed: tilapia monoculture with 38.7 fish/m3 and tilapia and Australian redclaw polyculture, considering the same stocking density for fish in monoculture and 17.5 crustaceans/m2, of which one...
Resource Type:: Research Paper
Full Text:: . Given t fisherme economi the past, make aq Based on compose crayfish identific offers th MATER

Bioeconomic Analysis of Ration Size in Nile Tilapia Feeding: An Example of Yucatan, Mexico

Creator:: Poot-López, Gaspar R., Hernández, Juan M., and Gasca-Leyva, Eucario
Abstract:: Nile tilapia has been cultivated in intensive systems in Yucatan, Mexico, during the first years of this century. Nevertheless, its adoption faces technical (related to the use of commercial feed) and marketing problems (fixed price of $2.14/Kg), which are analyzed in this paper. To do this, a bioeconomic model of...
Resource Type:: Research Paper
Full Text:: , a von Bertalanffy-type equation was chosen, which describes the daily growth rate of the organisms

Optimal Harvesting Time in Aquaculture Assuming Nonlinear Size-Heterogeneous Growth

Creator:: Araneda, Marcelo E., Hernandez, Juan M., and Gasca-Leyva, Eucario
Abstract:: This study explores the optimal harvesting time in a size-heterogeneous population dynamics. The model includes the effect of population density in both the mortality rate and individual growth. An application to specific conditions of shrimp culture in Mexico is presented. The optimal harvesting rule is numerically found for different economic...
Resource Type:: Research Paper
Full Text:: the size of the representative at time t, x(t), growth is defined throughout the following

ScholarsArchive@OSU

Micro Hydro Penstock Design

Estimating harvest rates to assess the efficacy of marine reserves in the Santa Barbara Channel Islands

The Economic Loss in Thai Fisheries

Recovering Fisheries from Crisis or Collapse: How to Shorten Impact Time of International Research Cooperation

Un manuscrit problématique d’Erec et Enide

Combining Property Rights and Landings Taxes to Mitigate the Ecological Impacts of Fishing

A parallel intermediate representation based on Lambda expressions

Economic Analysis of Polyculture Tilapia and Australian Redclaw Crayfish

Bioeconomic Analysis of Ration Size in Nile Tilapia Feeding: An Example of Yucatan, Mexico

Optimal Harvesting Time in Aquaculture Assuming Nonlinear Size-Heterogeneous Growth

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