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Showing 1 to 20 of 93 for “"Clearances"”.
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Protein clearances and renal protein selectivity in the proteinurias of pregnancy
Ever since the association between altJ.Jminuria and eclampsia was noted by Lever in 1843, the kidney has figured in the forefront in the search for aetiological factors. Lever, who was a contemporary of Bright at Guy's Hospital, observed the close similarity in appearance between many of his …
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The dynamics of spatial elastic mechanisms with clearances and support structures
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1993.
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Legacy of Betrayal: A Trans-Atlantic Comparison of the Cherokee Removal and the Highland Clearances
… stance. Additionally, in regard to the Highland Clearances, the events have been represented as the inevitable result of industrialization and modernization or the cultural genocide of the Highland Gaels. Focusing largely on the Sutherland region, this work offers an examination of the Gaelic …
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Unsteady flows in cantilever compressor stator tip clearances and the effect of real tip geometry
… tip flows. The simulations were performed with clearances of 1.6 and 3.2 percent of chord. The results show that the flow both within the gap and at the exit on the suction side are highly unsteady phenomena controlled by fine-scale turbulent structures. The signature of the classical tip …
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Contempt, sympathy and romance': lowland perceptions of the Highlands and the clearances during the famine years, 1845-1855
This thesis examines Lowland public opinion towards the Highlanders in mid-nineteenth century Scotland. It explores attitudes present in the contemporary newspaper press, and shows that public opinion was divided by three basic perceptions: 'contempt', 'sympathy' and 'romance'. An analysis of the …
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Non-smooth dynamics and sensitivity analysis of multibody systems with clearances and friction in differential variational inequality framework
… in the desired direction of motion. However, clearances in mechanical joints are integral to all real-world multibody systems. The clearances between the bodies allow the bodies to undergo a certain misalignment and the dynamics is governed by the contacts thus formed. The conventional …
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Impact of altering the delinquent debt threshold used for background investigation expansion of the denial rate of security clearances
… of cases of requests for Top Secret security clearances from applicants whose backgrounds showed some derogatory financial information, to determine the impact of the delinquent debt threshold used to expand personnel security investigations on final clearance decisions. To conduct the …
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Analysis of fatigue in firefighters: foot clearances over stair edges and validation of a novel means for metabolic data collection
… load, as is commonly done on the fireground. Clearances of the heels and toes were examined over each stair edge. Some significant changes occurred due to condition, pre/post activity, and load carriage. These results can lead to the development of a standard for the simulation of firefighting …
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Friction and lubrication behaviour of hip resurfacing metal-on-metal and ZTA ceramic on CFR peek implants with various diameters and clearances. Friction and lubrication behaviour of hip resurfacing Co-Cr-Mo and zirconia toughened alumina ceramic heads against carbon fibre reinforced poly-ether-ether-ketone cups with various diameters and clearances have been investigated using serum-based lubricants.
… resurfacing implants with various diameters and clearances have been investigated and compared to those of the newly developed zirconia toughened alumina (ZTA) ceramic femoral heads articulating against carbon fiber reinforced poly-ether-ether-ketone (CFR PEEK) acetabular cups with different …
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Computational and experimental analysis of the effects of manufacturing tolerances on the performance of a regenerative liquid ring pump
… design aspects such as the radial and axial clearances between the impeller and the casing, and more crucially most researchers tend to investigate these elements in isolation. This highlights the key driver and novelty of this current research, which applies modern Computational Fluid …
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Clearance management in twin screw compressors
… compressors is heavily dependent on the rotor clearances within them, chamber models, used as design aids, allow for the specification of their magnitude and distribution but do not account for how these may vary during operation, as a result of internal temperature changes caused by the …
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Noise due to pressure pulsations in a pressure-balanced sliding vane pump
… internal leakage, which was a function of three clearances in the pumping chamber, determined the magnitude of the pressure pulsations. If the pumping chamber components had inadequate clearances, the pump produced excessive pressure pulsations for a given discharge pressure and, consequently, …
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A Computational Model of Jetliner Taxiing
… automated scheduling algorithms to generate taxi clearances and speed-based taxi clearances, require thorough testing to ensure safety and reliability. Cognitive modeling is able to uniquely address these issues in a compromise between costly human-in-the-loop simulations and deterministic …
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The effect of clearance upon friction and lubrication of large diameter hip resurfacing prosthesis using blood and combinations of bovine serum with aqueous solutions of CMC and hyaluronic acid as lubricants.
… friction of metal-on-metal bearings with various clearances in the presence of lubricants such as blood or a fluid containing macromolecules such as hyaluronic acid (HA) which is a major component of synovial fluid increasing its viscosity and lubricating properties. In this work, therefore, we …
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Mangrove ecosystem dynamics and clearance impacts
… and fluxes. Results showed that smaller hand clearances and locations exposed to greater hydrodynamic forces showed more signs of transition to sandflat conditions (decline in mud content, change in macrofaunal communities) than larger mechanical clearances. However, sediment characteristics …
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NUCARS Modeling of a Freight Locomotive with Steerable Trucks
… stiffness has little effect. In curving, the clearances between the axles and truck frame are very important. Limiting these clearances in the steerable truck causes it to curve similar to a conventional straight locomotive truck and increases both the track force ratios and angles of attack. …
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An analysis of through-hole punching in PMMA with varied process parameters
… and die mechanics for various punch sizes and clearances were performed using ADINA finite element analysis (FEA) software; similar simulations were done for a straight shearing situation for comparison. A special straight-line punch and die set with a movable was then machined for use with an …
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Effects of a prostaglandin E₁ analogue, misoprostol, on gentamicin-induced nephrotoxicosis in dogs
… profiles, urinalyses, and exogenous creatinine clearances were monitored every 2 to 3 days. Three dogs receiving misoprostol were withdrawn early because of severity of clinical signs. Changes in serum urea nitrogen, creatinine, potassium, chloride, total protein, and urine protein-to-creatinine …
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Reações de impulso em mecanismo articulado plano com folga nas articulações
… was applied to a similar linkage witha out clearances, for camparisan purposes. Digital programs were prepared for both phases of research, and numerical examples are presented. Sections (2.5) and (2,6) regarding the "PROXIMITY PERTURBATIDN" method and all the contents of chapter III are new …
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Palaeoecology of human impact in northwest England during the early medieval period: investigating ‘cultural decline’ in the Dark Ages
… imprecise, frequently assigned major ‘woodland clearances’ to the Romano-British period, woodland regeneration phases to the early Dark Ages, ‘subdued’ agriculture to Anglo-Saxon farmers and pastoral clearances to the actions of Norse settlers.<br/>The overarching aim of this study has been to …
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