منابع مشابه
Harvest and Post-harvest Operations
Harvest and post-harvest operations constitute principal constraints to rice production, especially in irrigated systems, because of the larger yield that has to be handled. Post-harvest crop losses of up to 35% have been reported and attributed to inefficiency of manual threshing of rice by small-scale farmers. This leads to poor grain quality and rejection of locally produced rice. The Africa...
متن کاملFrozen Moments, Frozen Lives
SUMMER 2008 BETA 31 Trauma : “I can’t remember anything after the first few words she said: ‘I’m sorry to tell you that your test results came back positive.’ After that, it was all just a blur of sounds and images—the traffic outside, my heart beating, the look on her face. Everything was moving in slow motion. I just kept hearing those five words echoing in my head: ‘Your test came back posit...
متن کاملNode harvest
When choosing a suitable technique for regression and classification with multivariate predictor variables, one is often faced with a tradeoff between interpretability and high predictive accuracy. To give a classical example, classification and regression trees are easy to understand and interpret. Tree ensembles like Random Forests provide usually more accurate predictions. Yet tree ensembles...
متن کاملHarvest Regulations and Implementation Uncertainty in Small Game Harvest Management
A main challenge in harvest management is to set policies that maximize the probability that management goals are met. While the management cycle includes multiple sources of uncertainty, only some of these has received considerable attention. Currently, there is a large gap in our knowledge about implemention of harvest regulations, and to which extent indirect control methods such as harvest ...
متن کاملMultiple Solution Harvest Scheduling
Application of the Metropolis algorithm for forest harvest scheduling is extended by automating the relative weighting of objective function components. Previous applications of the Metropolis algorithm require the user to specify these weights, which demands substantial trial and error in practice. This modification allows for general incorporation of objective function components that are eit...
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ژورنال
عنوان ژورنال: The Iowa Review
سال: 1990
ISSN: 0021-065X,2330-0361
DOI: 10.17077/0021-065x.3836