Z transform and the use of the digital differential analyzer as a peripheral device to a general purpose computer

Z transform and use of digital differential analyzer as peripheral device to general purpose compute

The Potential Viability of Biomass Ethanol as a Renewable Fuel

Much attention has been paid to alternative fuel sources of late. Ethanol has been a politically popular alternative fuel additive and has recently been pushed to the forefront as a leading replacement to MTBE as an oxygenate. This paper examines the potential markets for ethanol, including biomass ethanol, and discusses the strengths and weaknesses of different oxygenate products. We find that the market for ethanol is tenuous and dependent on government support at this time. Biomass ethanol is more expensive to produce, but does have the advantage of being able to be produced near petroleum refineries, thus reducing transport costs, compared to other sources of ethanol.biomass, ethanol

A Two-Step Auction in the Presence of Negative Values: An Application to “Farm-Raised†Pre-Cooked Roast Beef

Uniform auctions are commonly used to elicit willingness to pay for new or novel products, product attributes, or non-market goods. However, most auctions or other contingent-valuation techniques do not allow for negative values, despite the fact that many consumers hold negative values for these products or product attributes. We conducted a WTP auction for a new product along with a within-sample WTA second auction allowing for negative responses. We find that failing to allow for negative values significantly inflates willingness to pay estimates and estimates of expected market share. This paper provides a method of incorporating negative values into auctions and willingness to pay elicitation.Consumer/Household Economics, Food Consumption/Nutrition/Food Safety,

THE POTENTIAL VIABILITY OF BIOMASS ETHANOL AS A RENEWABLE FUEL SOURCE: A DISCUSSION

Much attention has been paid to alternative fuel sources of late. Ethanol has been a politically popular alternative fuel additive and has recently been pushed to the forefront as a leading replacement to MTBE as an oxygenate. This paper examines the potential markets for ethanol, including biomass ethanol, and discusses the strengths and weaknesses of different oxygenate products. We find that the market for ethanol is tenuous and dependent on government support at this time. Biomass ethanol is more expensive to produce, but does have the advantage of being able to be produced near petroleum refineries, thus reducing transport costs, compared to other sources of ethanol.Resource /Energy Economics and Policy,

Using Portfolio Theory to Enhance Wheat Yield Stability in Low-Income Nations: An Application in the Yaqui Valley of Northwestern Mexico

This study applies portfolio theory to wheat varietal selection decisions in order to find risk-minimizing outcomes while holding historical yields constant. Potential correlation across wheat cultivar yields increases the complexity of cultivar selection decisions, with gains in one attribute (yield potential) often associated with losses in another (yield stability). Using location-specific empirical data, portfolio theory can provide producers in low-income countries a tool for developing a recommended portfolio of varieties given a desired risk-aversion level. Based on data from Mexico’s Yaqui Valley, results suggest that sowing a portfolio of wheat varieties could have lowered yield variance by 22% to 33% in Northwest Mexico.optimal variety selection, portfolio analysis, wheat, Crop Production/Industries,

Modeling the Effects of Cap and Trade and a Carbon Offset Policy on Crop Allocations and Farm Income

A static, producer profit maximization framework is used to capture county level land use choice on the basis of profitability, greenhouse gas (GHG) emissions to the farm gate as well as soil carbon sequestration as affected by tillage and soil type. Policy scenarios of a 5% GHG cap on agricultural emissions in conjunction with a carbon offset payment system, designed to provide producer payments for net carbon footprint (GHG emissions – soil carbon sequestration) reductions compared to a baseline are evaluated to determine potential changes to land use and or producer income as a result of different policy scenarios. Results suggest that a policy solely targeted at emissions can be counterproductive in the sense that acreage reductions of more input-intensive crops also lead to soil carbon sequestration reductions. Producer income effects are largely negative unless carbon prices reach nearly $100 per ton.Cap and Trade, Carbon Sequestration, GHG Emissions, Agriculture, Agricultural and Food Policy, Environmental Economics and Policy, Q50, Q58, Q54,

EVALUATION OF WINTER CEREAL COVER CROPS ACROSS NITROGEN MANAGEMENT STRAGIES FOR NO-TILL CORN PRODUCTION

Rye (Secale cereale L.) is the most popular winter cereal cover crop utilized before corn, but wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.) may provide a comparable value due to their similar fibrous root systems. Despite the benefits associated with winter cereal cover crops, drawbacks are possible for the subsequent corn crop. A field study was conducted with three site-years in Kentucky to measure the impact of the three winter cereals across nitrogen (N) management strategies. Wheat produced the most biomass compared with barley or rye cover crops. Wheat and rye needed approximately 100 more kg N ha⁻¹ to reach the agronomic optimum N rate when all N was applied at planting and 40 more kg N ha⁻¹ at sidedress compared with the no-cover crop control. A meta-analysis of peer-reviewed data from the Midwest found that corn following winter cereal cover crops had a more significant response to split N. A partial budget analysis of the field study found winter cereal cover crops are rarely profitable in the first year of adoption, regardless of species or N management strategy. The economic analysis also showed improved returns when N was split, but the mean net result was still negative

19_Nalley, Michael_Portfolio

Michael Nalley Through thought we can explore the meanings in life and the My prints focus on the suffering and escapism through the absurd hero’s journey, taking the thoughts and feelings of existential introspection and giving it physical form though screen print. They focus on snapshots of a life lived without pre-derived meaning in search of purpose through a narrative set that paints a life of filled with opulence and escapism from a dark and uncaring world. I look at the flawed nature of faith and how one deals with a world once witnessed to the absurde, how we as humans escape those feelings, and the feelings of outsiderism and loneliness felt in such a world. Formally, my pieces use a balancing act of bright and pastel colours in contrast with harsh and intense reds, browns, and blacks to push a scene from something grounded and real, into something more surreal and fantastic. I use appropriated images from Victorian etchings and Renaissance iconography intermingled with hand drawn imagery to show the journey of a man\u27s life surrounded by reminders of his meaningless and insignificance in the nihilist’s reality. All the while, my absurde hero marches on filling his life with anything that can fill the void. I use the breakdown of religious imagery in direct contrast to the horrors of war or broken landscapes as the breakdown of faith and the derived meaning in life that accompanies it. I place such images in the background as a reminder of how such feelings, even when covered and subverted, are always in the back of the mind, always dragging at the soul with a reminder of one’s place in the eyes of an uncaring universe filled with pain and death under the guise of a moral cause. I pull formal inspiration from artists like Matt Hopson-Walker, balancing heavy subject matter with bright and popping colours. Carrie Lingscheit has also influences my work formally with how she plays with heavily stylized and naturalized forms juxtaposed together. Conceptually my pieces pull mostly from philosophical literature in the form of writers like Albert Camus and Friedrich Nietzsche, as I explore the same vein of thought but instead use images rather than words to convey such introspection. With a life without meaning, we are left to find and make such meaning ourselves. I use the arts to explore that existential journey and to give physical form to such introspective moments through a nihilistic lense. I use art to tell a story of another trying desperately to find purpose, all the while dealing with the anger that comes with the question of evil, the substances that give momentary reprieve from unending feelings of dread and loneliness, and an escape into the social world in hopes of drowning out the voice of pain through endless social contact.https://digitalcommons.murraystate.edu/art399/1058/thumbnail.jp