DECENTRALIZED SUBOPTIMAL CONTROL OF INDUSTRIAL MANIPULATORS BY A COMPUTER VISION SYSTEM.
AuthorWatts, Russell Charles.
KeywordsRobots -- Industrial applications.
Automatic control -- Industrial applications.
Cameras -- Industrial applications.
Image processing -- Industrial applications.
Manipulators (Mechanism) -- Automatic control.
Manipulators (Mechanism) -- Optical equipment.
Robots, Industrial -- Automatic control.
MetadataShow full item record
PublisherThe University of Arizona.
RightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Degree ProgramGraduate College
Degree GrantorUniversity of Arizona
Showing items related by title, author, creator and subject.
Environmental adaptation, political coercion, and illegal behavior: Small-scale fishing in the Gulf of California.Vasquez-León, Marcela. (The University of Arizona., 1995)This dissertation examines the shrimp industry in the Gulf of California from a political ecology perspective. The interaction between fishermen and their marine environment is explored, as well as the historical factors that led to vastly different types of fishermen in the communities of Guaymas and Empalme. Some have specialized in the harvesting of shrimp; others are diversified, multiple species fishermen. Some are highly industrialized offshore shrimpers; others are small-scale fishermen, more modest in their technology but more resilient when facing the current crisis in the shrimp industry. The underlaying causes of this crisis are explored by looking at state development policies, the assumptions behind fisheries management, and the configuration of markets. These have all emphasized specialization in the production of shrimp while ignoring the high interannual variability characteristic of shrimp populations. The end result: an overcapitalized, overexpanded industry and a possible overexploitation of shrimp stocks. Rather than addressing the root causes of the crisis, recent policies have instead transferred rights to the offshore fishery from cooperatives to private investors. At the same time there has been a concerted attack against small-scale producers. It is believed that by getting rid of this sector, catch per boat in the offshore sector will increase and overall "efficiency" will be improved. I compare industrialized trawlers and the small-scale sector and argue that the latter is currently producing high quality shrimp at lower monetary and ecological costs. But small-scale fishing is not equated with sustainability. Instead, differences among small-scale fishermen are analyzed. I contend that those who belong to traditional fishing families and have access to collective knowledge about the marine environment that has accumulated through generations, are better able to deal with a highly unpredictable environment and minimize risk. Those who do not have access to this knowledge have specialized in the harvesting of shrimp. I argue that a strategy of diversification is both more profitable in the short-term and sustainable in the long-run. Avoidance strategies among small-scale fishermen in response to externally imposed regulations are also examined. Fishermen are analyzed as individual profit maximizers and as community members who break the rules to serve collective interests. Just as individuals act collectively to deal with an unpredictable environment, they also act collectively to effectively challenge the institutions of rule-making.
Digging Up Whiskey Row: An Archaeological and Historical Investigation of Industrial Capitalism on the North Shore of Lake SuperiorTumberg, Timothy Andrew (The University of Arizona., 2012)Following years of speculation about the potential economic value of mineral deposits in northeastern Minnesota, the first full-scale attempts to exploit that potential began in 1882. That year, the Minnesota Iron Company (MIC) imported dozens of miners to start extracting iron ore from the Soudan Mine on the south shore of Lake Vermilion. They concurrently imported hundreds of men to Agate Bay on the north shore of Lake Superior, approximately 70 miles south of the mine. The MIC selected Agate Bay as the spot for their ore shipping port and they needed men to start the simultaneous construction of an ore dock in the harbor and a railroad north from the harbor to the mine. Immediately after choosing Agate Bay as the spot for their shipping port location, the MIC bought up all the land along the north and west sides of Agate Bay except for a four-acre parcel that owner Thomas Sexton refused to sell. As the MIC-controlled community of Two Harbors developed around it, Sexton's parcel, which he platted as the community of Agate Bay, remained outside of company control. It quickly developed a reputation as a sea of iniquity that eventually became known as "Hell's Four Acres," which included a particularly notorious section called Whiskey Row. Sexton's platted community of Agate Bay existed for just a few years before the iron company acquired it early in 1886. At that point the company removed or demolished all of the remaining structures and covered much of what had been the settlement of Agate Bay with a coal storage platform. This project examines the town site of Agate Bay by looking at the documentary information in the historical record as well as the material culture remains recovered during archaeological excavations. Agate Bay is examined in terms of its position in a world economy (World Systems Theory) with consideration of the potential impacts of industrial capitalism.