Food or Fuel? Choices and Conflicts

Ethanol, Corn Prices, Biofuels Policy, Tax Credits, RFS, Food versus Fuel, Food Security and Poverty, Resource /Energy Economics and Policy, Q28, Q11,

A Computer Program to Calculate Two-Stage Short-Run Control Chart Factors for (X,MR) Charts

This paper is the second in a series of two papers that fully develops two-stage short-run (X, MR) control charts. This paper describes the development and execution of a computer program that accurately calculates first- and second-stage short-run control chart factors for (X, MR) charts using the equations derived in the first paper. The software used is Mathcad. The program accepts values for number of subgroups, alpha for the X chart, and alpha for the MR chart both above the upper control limit and below the lower control limit. Tables are generated for specific values of these inputs and the implications of the results are discussed. A numerical example illustrates the use of the program.

Second Stage Short Run (X,vc) and (X,sc) Control Charts

In their'70 paper titled "Mean and Variance Control Chart Limits Based on a Small Number of Subgroups" (Journal of Quality Technology, Volume 2, Number 1, pp. 9-16), Yang and Hillier originally derived equations for calculating the factors required to determine second stage short run control limits for ) v,X c( and )s ,X( c charts. Two issues have restricted the applicability of this particular control chart methodology. These are the limited tabulated values of factors Yang and Hillier present and no example to illustrate the use of the methodology. This paper addresses the first issue by presenting a computer program that accurately calculates the factors regardless of the values of the required inputs. An example shows how to incorporate the methodology into a two stage short run control charting procedure. The computer program is available at http://program.20m.com.

Elam\u27s Notes On Bible School Lessons 1923

https://digitalcommons.acu.edu/crs_books/1527/thumbnail.jp

A model of the monthly structure of the U.S. beef-pork economy

The principal aim of this study was to develop a simultaneous equation model of the U. 8. beef-pork economy. Also, postsample period changes in selected endogenous variables were analyzed. Five theoretical and eleven statistical equations were specified. Using two stage least squares the statistical equations were fitted to monthly data of January 1964 through December 1970. It was found that the most important variables affecting cattle and hog marketings were respective inventory levels. Prices paid by packers for cattle and hogs were strongly influenced by respective wholesale prices. Changes in cold storage of beef and pork were influenced by respective production levels, first of month inventories and prices. Wholesale to retail marketing margins for the two meats responded to changes in retail food store wage rates. Retail demand was inelastic for beef and pork, but appeared to be elastic for broilers. No firm statement could be made about the elasticity of broiler demand, as price was used as the dependent variable. Beef and pork were very weak substitutes at the retail level. Results of the postsample analysis were, for the most part, disappointing. The first stage equations of the model were used to calculate values for endogenous variables from actual data on exogenous variables. It was found that these calculated values were not outstandingly successful in tracking changes in respective actual values. The model did predict levels of all endogenous price variables would rise between February 1971 and February 1972, although in some cases it missed the extent of the rises by a considerable amount. In addition, it was found that published cattle inventories, but not published hog inventories, were useful for tracking postsample data. From a summary table of elasticity estimates from past studies, it would appear that retail demand for beef is becoming more price and income inelastic. For this and other recent studies, the income elasticity for pork was positive, a result which contradicted earlier studies

Elam\u27s Notes On Bible School Lessons 1926

https://digitalcommons.acu.edu/crs_books/1534/thumbnail.jp

Design verification test matrix development for the STME thrust chamber assembly

This report presents the results of the test matrix development for design verification at the component level for the National Launch System (NLS) space transportation main engine (STME) thrust chamber assembly (TCA) components including the following: injector, combustion chamber, and nozzle. A systematic approach was used in the development of the minimum recommended TCA matrix resulting in a minimum number of hardware units and a minimum number of hot fire tests

SIMPLE AND MULTIPLE CROSS-HEDGING OF RICE BRAN

Feasibility of forward pricing sales of rice bran via cross-hedging was investigated. Corn, oats, wheat, and soybean meal futures were considered as simple and multiple cross-hedging media. Simulation results indicated that simple cross-hedging using corn futures would be most effective in reducing price risks.Demand and Price Analysis,

Two-Stage Short-Run (X, MR) Control Charts

This article is the first in a series of two articles that applies two-stage short-run control charting to (X, MR) charts. Theory is developed and then used to derive the control chart factor equations. In the sequel, the control chart factor calculations are computerized and an example is presented

The Bible Doctrine of Sanctification Contrasted With the Second Blessing Theory of It.

https://digitalcommons.acu.edu/crs_books/1050/thumbnail.jp