The fleet assignment problem (FAP) assigns the type of airplane at each flight segment. Since airplane is an expensive resource, poor fleet assignment can cause a great increase in costs of airlines. There are so many consideration which should be tackled in formulation of a FAP problem, especially the parameters regarding to the airplanes. This paper presents a novel, mixed integer programing ...

Land degradation is a major obstacle to agricultural development in Africa, where it's accentuated by poor practices and climate change effects. Restoration of degraded lands crucial prevent incursions into virgin marginal lands. A field experiment was carried out over four-year period on two sites, assess compare the effect common of: (i) burning crop residues weeds resource-poor farmers (T1) ...

Agritourism has been promoted primarily as a way to mitigate economic challenges faced by small-scale family farmers, but it may also foster land stewardship and promote agricultural literacy. There very little research on these relationships. We employed qualitative approach assess how farmers’ involvement in agritourism microentrepreneurship shapes their of farmlands southeastern North Caroli...