Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"hoist"”.
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An automatic crowd-hoist regulator for the strip mining industry
… Strip Mining Industry's first Automatic Crowd-Hoist Regulator. The introduction considers the purpose and needs for such a regulator by briefly outlining the present manual dipper loading operation. Section IV and Appendix 1 presents the analytical system requirements which are basically …
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Design study of an automated method for mine hoist electrical system inspection and testing
Includes bibliographical references.
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Fault diagnosis based on causal reasoning
… its application to a Mark 45 turret gun's lower hoist are described. HOIST is a system that performs fault diagnosis without the use of a domain expert or "shallow rules". Rather its "knowledge" is coded directly from a structural specification of the Mark 45 lower hoist. The technology reported …
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The effect of overloading on reliability of wheel loader structural components
… the bucket on hydraulic pressures in the hoist cylinders (used as a proxy for forces on a wheel loader); and 3) investigate the effect of overloading the bucket on the reliability of structural components of a wheel loader.</p><p>To achieve these objectives, the research used data from …
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Active Vibration Suppression for Wafer Transfer Systems in Semiconductor Fabrication Plants
… wafer handling is performed by Overhead Hoist Transport (OHT) vehicles that transport wafers in front opening unified pods (FOUPs). When the wafers are transported in FOUPs, semiconductor chips are at risk of damage by excited small particles due to mechanical vibration, especially if …
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Assessment of an ex vivo porcine lung model to investigate host-microbe interactions in cases of ventilator associated pneumonia
… that it is a practical method of exploring the hoist microbe interactions in cases of VAP.
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The Modelling and Simulation of the Dynamic Behaviour of a Lift Car-Rope Suspension System
… lateral and longitudinal vibrations of hoist, compensating ropes and travelling cables can occur and car vibrations may take place. The design methodology of lift systems requires performing a thorough dynamic analysis in order to predict the dynamic loads and to evaluate the response of …
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A system theoretic safety analysis of U.S. Coast Guard aviation mishap involving CG-6505
… a Coast Guard helicopter (CG-6505) conducting hoist training with a Coast Guard small boat, which resulted in the loss of the helicopter and its four-person crew. The analysis identified enhancements to Coast Guard aviation system controls that were not expressly identified as part of the MAB …
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Exploring preventive interventions and risk factors of hospital-acquired pressure ulcers: A retrospective matched case-control design.
… of daily living and moving outside bed only by a hoist. When adjusting the effect of all variables related to physical activity and mobility through the multivariate model, only two factors were independently associated with developing pressure ulcer: moving in bed with help and the ability to …
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A consensus on reporting variables for terrestrial helicopter search and rescue operations in South Africa through a Delphi study
INTRODUCTION: Search and rescue (SAR) endeavours to locate distressed individuals in remote, challenging environments. Terrestrial rescues take place on land, while aquatic rescues involve water operations. The global surge in outdoor activities has increased SAR demands, especially in challenging …
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Jeřáb sloupový
Tato bakalářská práce se zabývá návrhem konstrukce sloupového jeřábu s délkou vyložení ramene 5000 mm, výškou zdvihu 6800 mm a nosností 1200 kg. Práce obsahuje návrh hlavních nosných prvků jeřábu, důležité pevnostní výpočty a výběr vhodného kladkostroje. Součástí práce je také výkresová dokumentace …