Modern agriculture features industrialization, marketized industrial structure, intensive production pattern and high digitization; farm produce logistics are characterized by wide range, large quantity, relative independence, consumable as well as value-added processing. In this study, in view of the features of modern agriculture and farm produce logistics, a SCOR model (Supply-Chain Operatio...

In this paper we examine the marginal impact of changing farm supply on the market structure of the downstream food processing sector. We develop a theoretical model that allows for cost differences among processors and endogenizes downstream entry and exit. Comparative statics results are consistent with several well-established trends in the food processing sector. In particular, the analysis...

We present a model for scheduling power generation at a wind farm, and introduce a particle swarm optimization algorithm with a small world network structure to solve the model. The solution generated by the algorithm defines the operational status of wind turbines for a scheduling horizon selected by a decision maker. Different operational scenarios are constructed based on time series data of...

The changes in a population of springbok confined to a paddock on a farm in the Karoo were ob­ served for 12 years. The observations and data on the age structure, obtained from skulls in the paddock, were used to construct a model of the population changes over the first 10 years. In the 11th year the population was severely depleted as a result of drought. Possible reasons for the magnitude o...

Parsec is a parallel programming environment whose goal is to simplify the development of multicomputer programs without, as is often the case, sacraficing performance. We have reconciled these objectives by “compiling” the structure of parallel applications into information to configure each of a small set of communication primitives on a context sensitive basis. In this paper we show how Pars...

A growing number of studies have shown that adequate spatial access to healthy foods leads to increased fresh produce consumption and reduced risk of chronic diseases. Annual dynamics of spatial access to 1,539 vendors of fresh produce (including farmers markets and roadside farm stands) are analyzed in Massachusetts. Travel distance to the nearest fresh produce vendor was calculated for each c...

This chapter analyzes the technical efficiency of banana production among Ugandan smallholders by estimating a stochastic production frontier model with inefficiency effects. The empirical models are formulated within the overarching framework of the agricultural household specified in Chapter 2. The data design is also summarized in Chapter 2, although additional information about soil quality...

the gamasiab river has one of the highest discharge in the western iran receiving wastewater of trout frames. the present study investigated effects of wastewater using bioassessment of benthic organisms. the benthos were sampled over four seasons using a surber sampler on four stations, upstream, on the farm outlet, 500 and 1000 m down the farm outlet. 5454 benthic fauna were identified that w...

abstract producing of flowers and ornamental plants in iran has some challenges and failure in the market structure and marketing of these products. in this study, we evaluated the different marketing channels of flowers and ornamental plants in the existing market structure according to economic criteria and the characteristics of market structure. cut-rose and esfahan province were selected a...