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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Bidding Competition and Supply Chain Risk in Soybean Exports

Bisbee, Seth Charles January 2018 (has links)
Commodity trading at both domestic and international levels involves many sources of supply chain risk and uncertainty. Risk management techniques are utilized by industry participants; however, there are unknown risks that can arise throughout the supply chain making effective risk management a difficult task. This study aims to address supply chain risk in soybean exports. A framework is created for a competitive bidding environment in which firms participate in an international import tender. Monte Carlo simulation is used to represent stochastic variables and derive an optimal bid under various scenarios. Sensitivity analysis is then conducted to measure the impact of key input variables on the output values. An alternative specification for risk management is also implemented into the framework. This study provides insight into supply chain uncertainty and incorporates that into a competitive bidding framework for optimal bid derivation and effective risk management.
52

Groundwater Table Effects on Yield, Growth and Water Use of Canola (Brassica napus L.) Plant

Kadioglu, Hakan January 2019 (has links)
Lysimeter experimental studies were conducted in a greenhouse to investigate canola (Brassica Napus) plant water use, growth and yield parameters under three different water table depths of 30, 60, and 90 cm. Additionally, control experiments were conducted and only irrigation was applied to these lysimeters without water table limitation. Canola plant’s tolerance level to shallow groundwater was determined. Results showed that groundwater contributions to canola plant were 97, 71, and 68%, while the average grain yields of canola were 4.5, 5.3, and 6.3 gr for the treatments of 30, 60, and 90 cm water table depths, respectively. These results demonstrated that 90 cm water table depth is the optimum depth for canola plant to produce high yield with the least amount of water utilization.
53

Drought, Depression, and Relief: The Agricultural Adjustment Wheat Reduction Program in North Dakota during the Great Depression

Gostanzik, Brent Alan January 2012 (has links)
The purpose of this thesis is to examine how the Agricultural Adjustment Wheat Reduction Program functioned in North Dakota from May of 1933 to January of 1936, why it ran so smoothly, and why it was such a success within the state. By using county Extension Agent reports that date from the time period this thesis uses an extensive number of primary sources that have not been used before. These reports, along with farmer journal accounts, newspaper articles, and Agricultural Adjustment Administration reports show that North Dakota wheat farmers openly embraced the policies of the Wheat Reduction Program and participated in it in higher numbers than any other state in the nation. The farmers embraced the program because the drought and economic depression they were facing left let them little choice, but also because the program did not seek to radically alter the structure of wheat farming in North Dakota.
54

Women's Power: A Cross-Generational Exploration of One German-Russian Farm Family

Dockter, Shona Ann January 1992 (has links)
Exploration of the familial power women possess is growing as sociologists and anthropologists recognize the legitimacy of power internal to the family. The focus of this research was to uncover the forms of power German-Russian women held as they operated in the private sphere of the family. Attention also focused on the transference of women's power, and the family power dynamics unique to farm families. Members of three generations of one German-Russian farm family were interviewed. The results indicated German-Russian women operated from bases of power derived from their roles as farm wives who contributed to family sustenance, and as caretakers and kinkeepers, maintaining family cohesion. While male power is largely public and formal, women's reliance on the bonds of familial relationships across generations lend them greater power in that realm.
55

Warm Mix Asphalt Processes Applicable to North Dakota

Saboori, Arash January 2012 (has links)
Warm mix asphalt (WMA) represents a group of technologies that allows production of asphalt mixtures at lower temperatures compared to traditional hot mix asphalt (HMA). This results in less fuel consumption and reduction in CO2 ¬and fumes emission. This research was conducted in order to provide North Dakota department of transportation (NDDOT) with a thorough study on state of the practice of WMA in USA and compare WMA performance with HMA. Extensive literature study was conducted, collecting reports and field experiment data from DOTs of states with climate similar to ND. Viewpoints of experts in the field were collected and analyzed using a comprehensive survey. These were added to analysis of collected data on WMA performance. The research results suggest using foaming processes (Double Barrel Green in particular) and chemical additives (Evotherm in particular) at this early stage with guidelines for modifications in WMA specification and testing compared to HMA. / North Dakota Department of Transportation
56

Multi-Element Composition of Triglochin Maritima L. from Contrasting Habitats including Hot Springs and Metal Enriched Areas

Sunwar, Sharmila January 2011 (has links)
The aim of this PhD research was to study multi-element composition in wetland plants from contrasting habitats, including hot springs, temporary wetlands, and metal-rich areas. Triglochin maritima L. (seaside arrowgrass) was chosen for the study because this species is common in alkaline/saline soils and is adapted to diverse habitats. Eleocharis rostellata, Juncus balticus, Salix exigua, S. boothii, and S. wolfii were also included in the study. Field studies and greenhouse experiments were conducted to study the multi-element composition in plants. In the greenhouse experiment the effects of temperature and soil biota on multielement uptake in T. maritima were studied. Root-zone soils and plant samples were analyzed for 32 - 50 elements using inductively coupled plasma OES/MS spectrometry. The expected outcomes from this research were: 1) the development of multi-element fingerprints for T. maritima and other plant species from contrasting habitats, and 2) a better understanding of the effects of temperature and soil biota on multi-element uptake in T. maritima. Habitat specific element concentration patterns in T. maritima were observed; concentrations of Mn, Li, and B were high in plants from hot spring influenced wetlands, whereas Ca, P, Mg, Fe, Sr, Ba, Ti, and Cu were higher in the plants of temporary wetlands. J. balticus and Salix species from mine impacted and uncontaminated sites revealed distinct differences in multi-element fingerprints. J. balticus showed high concentrations of S, K, Mn, Fe, Cu, Al, As, and Cd at contaminated sites compared to un-contaminated sites. Multi-element fingerprints of Salix species showed that S. boothii had higher concentrations of Mn, Fe, Al, and Ti compared to S. exigua and S. wolfii. To our knowledge for the first time the association of mycorrhizal fungus in T. maritima was confirmed, and significant effects of temperature on element concentrations, contents, and their translocation in plants were observed. Generally, the distribution of the total contents of P, Na, Mn, B, Cu, Mo, Li, Sr, Ti, and Cs in both roots and leaves were lower at 40 °C compared to 20 and 30 °C, but their distribution and translocation from root to leaves were higher at 40°C. Even though the biological and physiological functions of Li, Sr, Ba, Rb, and Ti in plants are not fully understood, these elements were substantially taken up by T. maritima, and significant positive correlations of these elements were found with elements that have known biological functions. Overall, concentrations of Ca, P, Mg, Mn, B, Sr, and Ba in T. maritima showed variation due to differences in habitats, temperature, and experimental growing conditions (greenhouse and field condition). Concentration patterns of Na, K, and Zn were species specific and affected by temperature. Li concentrations varied due to habitat differences, growth conditions, and species differences. Future research directions could include: 1) identification of the fungal species associated with T. maritima and studies to elucidate their possible role in survival of T. maritima in the elevated temperature of hot springs, 2) the effects of soil factors, such as salinity and 3) seasonal variation in uptake and translocation, particularly for the less studied elements with yet unrecognized but potential biological functions in plants. / NIH Grant Number P20 RR016471 from the INBRE Program of the National Center for Research Resources / North Dakota State University. Department of Biological Sciences / Robert H. Levis II Cross Ranch Fellowship / North Dakota State University. Environmental and Conservation Sciences program
57

Incorporating Adaptive Management and Translational Ecology into the North Dakota Total Maximum Daily Load Program: A Case Study of the Fordville Dam Nutrient TMDL

Hargiss, Michael John January 2012 (has links)
Translational ecology and adaptive management strategies were incorporated into the Fordville Dam Nutrient Total Maximum Daily Load (TMDL) case study to determine if these two techniques were compatible to the North Dakota TMDL Program. A case study summary of the Fordville Dam Nutrient TMDL was discussed to provide contrast and comparison of the current TMDL program strategy and systematic improvements that could be made with the incorporation of translational ecology and adaptive management. Translational ecology is an effective way to bridge the information barrier through open communication between the stakeholders and scientists while creating a mutual learning experience. Adaptive management is beneficial to a TMDL implementation plan because it allows stakeholders and resource managers to become involved in management decisions and develop a better understanding of the ecosystem. Therefore, combining translational ecology and adaptive management would make the TMDL process more effective, through better communication and a flexible management plan.
58

Beyond Aurora

Ireland, Ryan Patrick 22 June 2011 (has links)
No description available.
59

'Fierce Winds and a Blank Whiteness': The Culture of Dakota Winter, 1870-1915

Fischer, Daniel 29 July 2011 (has links)
This thesis argues that accommodation to winter was an important — though not the only — response of early Dakotans to the annual challenges and hazards of winter. It examines first the challenges of winter, then what Dakotans did to protect themselves from and even profit from the season, then the ways that Dakotans spoke in positive ways about their winters or, using winter, themselves. / Master of Arts
60

Plant Community Composition of Camp Grafton Training Center (South Unit) from 1998-2013

O'Brien, Peter January 2014 (has links)
A vegetation monitoring study was conducted from 1998 to 2013 at Camp Grafton South (CGS) in Eddy County, North Dakota to assess how climatic, grazing, and military training disturbance affects plant community composition. The objectives of this study were to 1) describe the prairie vegetation at CGS across three topographic positions and 2) explore any shifts in plant community composition in correlation with time. Frequency data was collected at 45 randomly selected transects on lowland, midland, and upland grassland plant communities on native prairie. Plant communities were compared using non-metric multidimensional scaling (NMS) ordination. NMS ordination showed that the three plant communities were distinct from one another, and that the frequency of the invasive graminoids Kentucky bluegrass (Poa pratensis L.) and smooth brome (Bromus inermis Leyss.) increased. Increases in precipitation, temperature, and growing season days appear to be the primary influence on the changes in plant communities from 1998-2013.

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