1,684 research outputs found

    Louisiana Sugar Plantations During the Civil War.

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    Synthetic aperture guided wave imaging using a mobile sensor platform

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    This oral session at conference looks at synthetic aperture guided wave imaging using a mobile sensor platfor

    SAFER: Search and Find Emergency Rover

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    When disaster strikes and causes a structure to collapse, it poses a unique challenge to search and rescue teams as they assess the situation and search for survivors. Currently there are very few tools that can be used by these teams to aid them in gathering important information about the situation that allow members to stay at a safe distance. SAFER, Search and Find Emergency Rover, is an unmanned, remotely operated vehicle that can provide early reconnaissance to search and rescue teams so they may have more information to prepare themselves for the dangers that lay inside the wreckage. Over the past year, this team has restored a bare, non-operational chassis inherited from Roverwerx 2012 into a rugged and operational rover with increased functionality and reliability. SAFER uses a 360-degree camera to deliver real time visual reconnaissance to the operator who can remain safely stationed on the outskirts of the disaster. With strong drive motors providing enough torque to traverse steep obstacles and enough power to travel at up to 3 ft/s, SAFER can cover ground quickly and effectively over its 1-3 hour battery life, maximizing reconnaissance for the team. Additionally, SAFER contains 3 flashing beacons that can be dropped by the operator in the event a victim is found so that when team members do enter the scene they may easily locate victims. In the future, other teams may wish to improve upon this iteration by adding thermal imaging, air quality sensors, and potentially a robotic arm with a camera that can see in spaces too small for the entire rover to enter

    Accidental Poisoning in Young Children: Its Causes and Its Prevention

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    Accidents, burns, drownings, and poisonings are the four most frequent causes of death among children. They far exceed the frequency of death from any of childhood\u27s infectious diseases. With reasonable care, death from poisoning is probably the most amenable to prevention. Accidental poisoning, mainly in preschool children, is discussed from the standpoints of the major toxic hazards found around the usual home, their nature, incidence, location, and prevention

    Managing ponds and lakes for aquaculture and fisheries in Missouri : fish selection and stocking for sport fishing (2014)

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    Sport fishing is a popular recreational activity among Missouri pond owners (Figure 1). Developing a farm pond for fishing requires several important decisions, including where to get fish; what species to stock; how many, what size and when to stock. Ponds stocked with incorrect combinations of fish can quickly develop unbalanced populations that will become a problem. Small farm ponds and lakes are not natural environments, so they must be carefully managed. Successful pond management involves a combination of practices that promote a healthy and productive pond ecosystem: Ensuring during construction that a pond has enough watershed acreage to maintain water levels ; Monitoring water quality, and adjusting as necessary ; Ensuring food is available for fish ; Controlling harvesting to maintain a balance of predator and prey populations ; Managing aquatic vegetation, and controlling weeds ; Preventing situations that may cause fish kills.New 5/14/Web

    Converting unused agriculture facilities for aquaculture use : swine barn conversion for fish culture (2012)

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    New 7/12/Web

    Managing ponds and lakes for aquaculture and fisheries in Missouri : establishing hybrid sunfish in ponds for recreation (2014)

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    Sunfish -- bluegill, redear and longear sunfish -- are among the most popular species of fish for angling in Missouri (Figure 1). They are relatively easy to catch on a variety of lures and baits and provide a challenge for anglers of all ages, making hybrid sunfish a popular choice for stocking in ponds to improve angling opportunities. Several popular hybrid sunfish crosses are used to stock ponds, including bluegill and green sunfish, bluegill and redear sunfish, and green sunfish and redear sunfish. The most commonly stocked hybrid is a male bluegill crossed with a female green sunfish (Figure 2). These hybrids are exceptionally hardy fish. Bluegill and green sunfish usually inhabit, feed and spawn in shallow areas of the pond. Bluegill and green sunfish are multiple spawners and will frequent nests arranged as colonies over the warm summer months. Redear sunfish, on the other hand, only spawn once a year and normally do so at a cooler temperature than bluegill or green sunfish. Bluegill-green sunfish hybrids and bluegill-redear hybrids are good combinations because they prefer different areas of the pond and have different feeding habits. Some pond owners like these combinations because they offer diverse fishing. Being a mix of two species, hybrid sunfish have attributes of both parents. Such attributes include fast growth, reduced reproduction, ability to eat floating fish feed and an aggressive feeding behavior, which makes them easy to catch. Although hybrid sunfish are not sterile, breeding is greatly reduced because 85 to 95 percent are male. Hybrid sunfish cannot replace bluegill in a pond stocked with bass and bluegill because they do not produce enough offspring to provide enough food for largemouth bass.New 6/14/Web

    Managing ponds and lakes for aquaculture and fisheries in Missouri : pond dynamics and water quality considerations (2014)

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    More than 300,000 privately owned ponds have been constructed across Missouri to serve a variety of purposes. When properly managed, they can add value to a property (Figure 1). However, ponds are complex ecosystems that require the owner's commitment to ensure they remain productive. Knowledge of a few basic ecological concepts is important whether you are managing a pond for aquaculture enterprise or for recreational activities such as sport fishing.New 6/14/Web
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