2009 HiMCM A题特等奖学生论文下载2461
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论文摘要如下:
12th Annual High School Mathematical Contest in Modeling (HiMCM)
Summary Sheet
(Please attach a copy of this page to each copy of your Solution Paper.)
Team Control Number: 2461 Problem Chosen: A
Please type a summary of your results on this page. Please remember not to include the name of your school, advisor, or team members on this page.
Our objective is to devise an effective, feasible, costefficient national water strategy to meet the projected needs of the United States in 2025. Thus, we first created a mathematical model to project the demand for fresh water in the United States in 2025, basing our projected needs on current trends in eight major categories of fresh water usage, namely public water, domestic, irrigation, livestock, aquaculture, industrial, mining, and thermoelectricpower generation. We then devised a costefficient and plausible national water strategy in which we can meet the 2025 projected water needs of the United States through storage, movement, desalinization, and the reduction in consumption of our water resources. Within our paper, part 1 addresses the projected growth in the demand for water due to the growth in U.S population, energy demand, and industries, while parts 26 of the model addresses our national water strategy and details illustrating how our strategy will create a sustainable water usage plan for the years 2010 to 2025.
For our projection model, we considered current trends in the eight main categories of the total fresh water usage as recorded by the United States Geological Survey. The eight main categories were public water, domestic, irrigation, livestock, aquaculture, industrial, mining, and thermoelectricpower generation. We created regression curves of the data given by the USGS for each of the eight categories. We then summed up the projected 2025 fresh water usage from each of the eight categories to obtain a total fresh water usage graph which projected the total United States fresh water usage in 2025.
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