Analysis of Body Pressure Distributions of the Air-Cell Mattress for Preventing Decubitus Ulcer

2006 ◽  
Vol 326-328 ◽  
pp. 743-746
Author(s):  
Hyeon Seok Cho ◽  
Jei Chung Ryu ◽  
Gyoo Suk Kim ◽  
Mu Sung Mun ◽  
Kyung Hoon Kim ◽  
...  
Keyword(s):  
Contact Pressure ◽  
Performance Optimization ◽  
Decubitus Ulcer ◽  
The Body ◽  
Human Model ◽  
Body Contact ◽  
Cell Height ◽  
Pressure Distributions ◽  
Closed Type ◽  
Human Flesh

A finite element simulation model was developed for the performance optimization of a closed type air-cell mattress used for the ulcer prevention. An H-model with material properties of human flesh and kinematic joints were used for the calculation of the body contact pressure. The material property of rubber air-cell was evaluated by tensile test of standard specimen. We evaluated the body contact pressure distribution after laying human model on the inflated air-cell mattress. It was found that the body contact pressure was dependent on cell height, but hardly affected by the cell thickness.

scholarly journals Cardboard Bed Without Mattress Is Ineffective in Improving the body Contact Pressure-a Preliminary Study Using a Dummy Model

2021 ◽  
Vol 58 ◽  
pp. 004695802110656
Author(s):  
Seiji Hamanishi
Keyword(s):  
Contact Pressure ◽  
Body Surface ◽  
High Performance ◽  
The Body ◽  
Whole Body ◽  
Future Research ◽  
Scientific Validity ◽  
Body Contact ◽  
Surface Contour ◽  
Preliminary Study

Objective This study aimed to describe and evaluate the dispersion of body-mattress contact pressure on a cardboard bed and investigate whether the cardboard bed has a positive effect on evacuees’ musculoskeletal burden. Materials and Methods A high-performance nursing simulator was used to measure the contact pressure and the body surface contour area of the bed, and these values were collected with the patient in the supine position using the Body Pressure Measurement System. Data of each test were acquired 10 times and were compared among 4 conditions (plastic sheet, cardboard bed, cardboard bed with a blanket, and cardboard bed with a mattress-topper). The data analysis for body-mattress contacts pressure and the surface contour area of the whole body, head, chest, and buttocks were conducted by one-way repeated analysis of variance and Bonferroni post-hoc test. Results The average body-contact pressure on the cardboard bed did not decrease compared with that on the floor with plastic sheets. In contrast, the body surface contour area was significantly different among any other conditions, but the gap was only approximately 16%. However, the body-contact pressure and the body surface contour area were improved when a mattress-topper was added on the cardboard bed. When a blanket was laid on the cardboard bed, the contact area was increased. Conclusion Our results indicate that the pressure dispersion ability of the cardboard bed was not sufficient; however, adding the mattress-topper or the blanket could contribute to an improvement in the evacuees’ musculoskeletal burden. Many evacuees lay a mattress topper or futon on a cardboard bed after installing cardboard beds. Our findings may also support the scientific validity of the evacuees’ actual sleeping style in Japan. This preliminary study provides the basis for future research on exploring an appropriate sleeping bed condition in evacuee shelters.

Two new annual fishes (Cyprinodontiformes: Rivulidae) unexpectedly discovered in the highlands of southern Brazil

Zootaxa ◽  
2021 ◽  
Vol 4949 (3) ◽  
pp. 499-520
Author(s):  
LUIS ESTEBAN KRAUSE LANÉS ◽  
MATHEUS VIEIRA VOLCAN ◽  
LEONARDO MALTCHIK
Keyword(s):  
New Species ◽  
Conservation Status ◽  
The Body ◽  
Colour Pattern ◽  
Southern Brazil ◽  
Body Depth ◽  
Body Contact ◽  
Morphometric Features ◽  
Natural Grassland ◽  
Two Populations

Two new species of Austrolebias are described based on specimens collected from temporary pools located in natural grassland landscape within the Araucaria Forest domain at exceptionally high altitudes (~1000 meters a.s.l.). Austrolebias botocudo sp. n. and Austrolebias nubium sp. n. occur, respectively, in drainages of upper rio Apuaê-Inhandava (upper rio Uruguay basin) and upper rio Taquari-Antas (upper rio Jacuí, Laguna dos Patos basin), in the Meridional Plateau of southern Brazil. Despite an intensive survey conducted in the area, only two populations of each species were recorded. Both new species occurs at altitudes that are among the higher recorded for species of the genus, and both are assigned to the subgenus Acrolebias. The new species described herein are easily distinguished for its congeners by the colour pattern of males, by presence of melanophores irregularly distributed in different parts of the body, contact organs cover the body and anal fins, position of fins related with vertebrae, by preopercular and mandibular series of neuromasts united, by a series of morphometric features and by larger maximum standard length. Austrolebias botocudo and A. nubium are distinguished from each other by colour pattern of males, length of contact organs in the flank and number of contact organs in scales of lateral line, dorsal profile of head, number of neuromasts in the preopercular + mandibular series, body depth in females, and by basihyal cartilage length. Additionally, we discuss the conservation status of the new species, and provided an identification key for the species of the subgenus Acrolebias. 

Professional identity in the global sports entertainment industry

2009 ◽  
Vol 46 (1) ◽  
pp. 27-44 ◽  
Author(s):  
Peter Kelly ◽  
Christopher Hickey
Keyword(s):  
Professional Identity ◽  
Management Practices ◽  
Young Men ◽  
The Body ◽  
Care Of The Self ◽  
Body Contact ◽  
Australian Football League ◽  
Australian Football ◽  
Relations Of Power ◽  
Professional Footballer

In this article we discuss the ways in which the professional identity of Australian Football League (AFL) footballers — in a physical, high body contact sport — is shaped by concerns to develop different aspects of the body, mind and soul of the young men who want to become AFL footballers. Drawing on Michel Foucault’s later work on the care of the self we argue that narratives of identity necessarily involve a struggle for the body, mind and soul of these young men. Foucault’s work enables us to identify and analyse how relations of power, forms of regulation and arts of governing interact in ongoing attempts to develop the professional footballer. The article explores these issues via an analysis of the rationalities and techniques that inform talent identification and player management practices; and risk management in relation to these practices and processes in the AFL.

An Investigation of the Forces on Three Dimensional Bluff Bodies in Rough Wall Turbulent Boundary Layers

1977 ◽  
Vol 99 (3) ◽  
pp. 503-509 ◽  
Author(s):  
B. E. Lee ◽  
B. F. Soliman
Keyword(s):  
Three Dimensional ◽  
The Body ◽  
Bluff Bodies ◽  
Drag Forces ◽  
Pressure Distributions ◽  
Mean Pressure ◽  
Flow Phenomena ◽  
The Mean ◽  
Building Ventilation ◽  
Group Density

A study has been made of the influence of grouping parameters on the mean pressure distributions experienced by three dimensional bluff bodies immersed in a turbulent boundary layer. The range of variable parameters has included group density, group pattern and incident flow type and direction for a simple cuboid element form. The three flow regimes associated with increasing group density are reflected in both the mean drag forces acting on the body and their associated pressure distributions. A comparison of both pressure distributions and velocity profile parameters with established work on two dimensional bodies shows close agreement in identifying these flow regime changes. It is considered that the application of these results may enhance our understanding of some common flow phenomena, including turbulent flow over rough surfaces, building ventilation studies and environmental wind around buildings.

scholarly journals Software for hydraulic design of axial-flow pump impellers and its manufacturing documentations

2021 ◽  
Vol 345 ◽  
pp. 00016
Author(s):  
László Kalmár ◽  
György Hegedűs ◽  
Árpád Fáy ◽  
Norbert Szaszák
Keyword(s):  
3D Printing ◽  
Axial Flow ◽  
Design Procedure ◽  
The Body ◽  
Pressure Distributions ◽  
Axial Pump ◽  
Singularity Method ◽  
Hydraulic Design ◽  
Axial Flow Pump ◽  
Flow Pump

This article presents a hydraulic design procedure for axial-flow pump impellers, followed by their manufacturing documentations, all in one easy-to-use software named AXPHD V2.0 (AXial Pump Hydraulic Design) developed by one of the authors (Kalmár). After the user determined pump duty, the software offers input data which may be changed interactively. The hydrodynamic singularity method is used to compute the blade profiles on cylindrical surfaces. If the velocity and pressure distributions are accepted, then the body model of the impeller is produced by AUTODESK INVENTOR PROFESSIONAL 2019. Full manufacturing documentation is prepared including shop-drawings for traditional production, numeric modules for CAM, and files for 3D printing. A photo of an impeller made by 3D printing closes the paper.

A Comparison of Theoretical and Experimental Pressure Distributions on Bodies of Revolution

1980 ◽  
Vol 24 (01) ◽  
pp. 60-65
Author(s):  
A. J. Smits ◽  
S. P. Law ◽  
P. N. Joubert
Keyword(s):  
Calculation Method ◽  
The Body ◽  
Viscous Effects ◽  
Bodies Of Revolution ◽  
Pressure Distributions ◽  
Wide Range ◽  
The Right ◽  
Right Order ◽  
Axisymmetric Bodies ◽  
Experimental Pressure

A wide range of experimental pressure distributions along axisymmetric bodies was compared with the results of Landweber's potential flow calculation method. Apart from certain viscous effects, some discrepancies were found, and it is shown that blockage corrections are of the right order to account for these discrepancies. The calculation method was also used to show that the pressure distribution over the nose of the body is largely independent of the tail shape, and vice versa.

The Werewolf, Inside and Out

2020 ◽  
pp. 82-108
Author(s):  
Daniel Ogden
Keyword(s):  
Inner Core ◽  
The Body ◽  
Ancient World ◽  
Human Form ◽  
Human Element ◽  
The Core ◽  
Opposite Process ◽  
Human Flesh

Ancient werewolf thinking was strongly articulated in accordance with an axis between an inside and an outside, in three ways. First, the werewolf was often understood as a combination of an outer carapace and an inner core: more often the human element formed the carapace, and the lupine element the core, but the opposite arrangement could also obtain. Usually the humanoid carapace was identified, awkwardly, with the werewolf’s human clothing, and the wolf was revealed once this was shed; but sometimes, perhaps, the wolf could be more deeply buried within, as in the cases of those, like Aristomenes, that boasted a hairy heart. The inner and outer form could be pinned together, as it were, by an identifying wound; it is also possible that the belief that a wound could force a werewolf back into human form existed already in the ancient world. Secondly, a werewolf transformation, in either direction, could be effected by the taking of a foodstuff within the body: a man could be transformed into a werewolf by eating an (enchanted?) piece of bread, or the food most appropriate to a wolf, human flesh; he could be transformed back into a man either by abstinence from human flesh or by the equal-and-opposite process of eating a wolf’s heart. And, thirdly, it was the impulse of the werewolf, when transformed from man to wolf, to make a bolt from the inner places of humanity and civilisation for the outer places of the wilderness and the forest.

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