Increased crop production and expansion of irrigated acreage in the southeastern USA have increased agricultural water use during the past two decades. To optimize irrigation water use, it is important to know when to irrigate and how much water should be applied. The objectives of this study...

Innovation research has been widely concerned with defining the process of new product development and factors influencing innovativeness. On the other hand, the open innovation research also started to look at what are the environments where openness brings higher benefits. In this paper, we...

Herbicide-resistant (HR) rice varieties offer U.S. rice producers a powerful tool for control of red rice infestations. However, improved weed control can shorten crop rotations and boost yields, resulting in expanded rice production and lower domestic market prices. Declining market returns...

Standard international trade models have consistently produced results that, compared ex post with real world data, show the right sign but much smaller magnitudes. Besides, for the case of developing countries, these same models predict that unskilled labour would gain from liberalization, and...

This paper describes the use of corporate decision and strategy simulations as a decision-support instrument under varying market conditions in the tourism industry. It goes on to illustrate this use of simulations with an experiment which investigates how successful different market...

Rangelands and pastures are found in every state and cover 55% of the land surface of the United States. Taken as a whole, from Western deserts and grasslands to meadows and woodlands, rangelands comprise some 364 million ha or 80% of the land in the 17 Western states. The vast expanses and...

This paper introduces methods to coordinate black box simulations in the construction of metamodels for situations in which we have to deal with coupled black boxes.We de.ne three coordination methods: parallel simulation, sequential simulation and sequential modeling.To compare these three...

A method for automatic functional testing of hydraulic simulators is proposed. The method is based on using genetic algorithms to search for network parameter values at which the simulator under test computes solutions that do not satisfy the governing network equations. The search is made by...