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In parallel and distributed computing environments, task scheduling, where the basic idea is minimizing time loss and maximizing performance, is an absolutely critical component. Scheduling in these environments is NP-hard, so it is important that we continue to search and find the most efficient and effective ways of mapping tasks to processors. One such effective approach is known as Ant Colony Optimization (ACO). This popular optimization technique is inspired by the foraging behavior of ants in their colonies to find the shortest paths between their nests and food sources.
A major challenge facing farmers in Portland, Jamaica is dry weather, especially during the optimal growing season from April through August. During this five-month period Portland suffered from severe dry spells during the years 2014, 2015, 2018 and 2020. A second challenge is the damage to crops and land as well as loss of livestock due to tropical storms or hurricanes and the associated flooding. Portland farmers have suffered losses due to an active hurricane season numerous times and most recently in the years 2004, 2005, 2012 and 2020.
The worldwide ginger market was valued at US$6.82 billion in 2020, with India, Nigeria and China being the top global producers (Global Ginger Market Report, 2021). Jamaican ginger once held pride of place in the global market, with its widely accepted superior quality, uniqueness of flavor and high oil content. However, since the initial outbreak of the ginger rhizome rot disease in 1995, production has drastically plummeted to insignificant levels and the industry has not yet recovered. In this regard, a number of intervention strategies have been implemented by the Government of Jamaica over the years, including the Eastern Jamaica Agricultural Support Project of 1993 under RADA, the Ginger Agricultural Science, Technology and Innovation Working Group initiative supported by the CTA ACP-EU under the National Commission and Science and Technology in 2005, the Ginger Resuscitation and Expansion Programme of 2011 led by the Export Division of the Ministry of Agriculture, the Ginger Value Chain Study supported by the FAO, the Ginger Varietal Study funded through the Jamaica Business Development Fund in 2018 and the ongoing Ginger Value Chain and Certification Programme supported by the FAO, with propagation and production of disease-free planting materials. These programmes, amounting to investments of millions of dollars, through partnerships with the key private, governmental and international stakeholders, have been met with varying degrees of success.
At the inception of automated solar tracking in the 1970’s, geometric architectures with pair(/s) of solid-state photo-sensitive devices were constructed and used to detect the sun’s position. As an alternative in recent years, cameras have been used to capture and process live sky images to detect the sun’s position. When the sky is cloudy however, both approaches are prone to errors and sometimes require human intervention which tend to reduce the trackers’ economic viability [1].
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