Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"farm models"”.
-
A dynamic analysis of the crop productivity impacts of soil erosion: an application to the Piedmont area of Virginia
… of partial equilibrium dynamic economic models directed toward optimizing the private use of the soil resource. In particular, four empirical representative farm models were formulated. Solutions to the four representative farm models showed that sizable reductions in topsoil loss, which …
-
Modeling and maximizing power in wind turbine arrays
… extraction. Large wind turbine arrays, or wind farms, can be viewed as large coupled networks, for which the application of traditional optimization techniques are impractical. A brief discussion on wind farm models and traditional optimization approaches leads to a dynamic programming approach …
-
Real-time simulation of a doubly-fed induction generator based wind power system on eMEGASim® real-time digital simulator
… the author tested the performance of two DFIG models on the platform real-time simulation model; an average SimpowerSystems® DFIG wind turbine, and a detailed DFIG based wind turbine using ARTEMiS® components. The platform model implemented here consists of a high voltage transmission system …
-
Transmission Dynamics Of Mycobacterium Avium Subspecies Paratuberculosis In Closed Dairy Herds In The Us
In this work we present work focused on within farm dynamics of Mycobacterium avium subsp paratuberculosis (MAP) infection on commercial US dairies. We focused on using deterministic mathematical models informed by molecular epidemiology and analysis of longitudinal data to evaluate current …
-
Assessing the Economic Viability of Arkansas Farms under the 2018 Farm Bill
… to aid in the maintenance and expansion of farming operations. Since 1933, a series of 18 farm bills have shaped agricultural policy into what is commonly known as the agricultural safety net. The 2018 farm bill was passed on December 20, 2018 and is the most recent update of the …
-
BMP Cost and Nutrient Management Effectiveness on Typical Beef and Beef-Poultry Farms in Shenandoah County, Virginia
This study analyzes the change in whole-farm net revenues and nutrient reduction from the implementation of five best management practices (BMPs) on a typical beef and beef-poultry farm in Shenandoah County. Whole-farm net revenues, resource allocation, nutrient loss reductions, and the cost …
-
MULTIFUNCTIONAL EVALUATION AND VALIDATION OF PRACTICES, TOOLS AND INNOVATIVE MODELS FOR THE LANDSCAPE AND AGROECOLOGICAL MANAGEMENT OF AGRICULTURAL SYSTEMS: TRADE-OFFS AND SYNERGIES IN THE ECOSYSTEM SERVICES FRAMEWORK
… the ecological and agri-environmental sides of farm models validation, based on mixed practice-result-based approaches. The project aims at developing a methodological framework for a multi-functional evaluation and validation of models for the landscape and agroecological management of …
-
The Potential for Innovative Farm Business Structures in the Australian Grains Sector
… innovations. Organisational innovations in farm business models, such as joint ventures (JVs) may offer opportunities to overcome these constraints and provide new pathways for owner-operator family farms to boost productivity. JVs retain the strengths of family farm models while capturing …
-
Agricultural adjustments to a falling groundwater table in central Arizona
… citrus for highvalue crops. Nine representative farm models are developed characterizing the structure of the agricultural sector of the economy in these two areas. Data for ten crops grown by these nine farm size groups are incorporated into linear programming models to make projections for 18 …