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 20 of 29 for “"mattress"”.
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Undead Bed: Mattress Recycling in Boston
… a waste regulation that bans the disposal of mattresses and box springs at solid waste facilities. The waste ban will take effect while the Massachusetts legislature is working on passing an EPR (Extended Producer Responsibility) bill for mattress waste. This bill would require the mattress …
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Individual cell pressure control in an air mattress for the prevention of the pressure sores
Many kinds of pressure-relieving mattresses have been developed to prevent pressure sores in patients with spinal cord injuries (SCIs) and obesity. Current technology uses alternating air pressure mattress, foam and low pressure mattress for reducing the incidence of pressure sores in SCI and …
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Mattress fires and their effect on the destruction and distribution of remains in a house-fire setting
… first investigated the limited contribution of a mattress alone to the burning of a body. By burning pig (Sus scrofa or Sus domestica) carcasses in a controlled environment, I determined that a mattress does not significantly damage the body to the point where identification would be hindered. In …
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A new standard in testing mattresses for use in x-ray imaging : developing, validating and using a novel method to test x-ray mattresses for pressure ulcer development, radiation dosimetry and image quality
… often undergo X-ray imaging while lying on a mattress. Therefore, mattresses must have low X-ray attenuation properties to minimise radiation dose to the patient. Mattresses should create no artifacts within the X-ray image, as this may compromise image quality and diagnosis. Finally, …
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AP pelvis x-ray imaging on a trolley: the impact of trolley design, mattress design and radiographer practices on image quality and radiation dose
… was to evaluate the impact of trolley design, mattress design and radiographer practice on image quality and radiation dose for AP pelvis imaging on a trolley in order to optimise this imaging examination. AP pelvis was chosen as the focus of this thesis due to the frequency of this examination …
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Influence of suture technique on ridge dimensions and keratinized tissue after alveolar ridge preservation: a pilot study
… of ARP using an external crossing horizontal mattress suture (control) versus an internal crossing horizontal mattress suture (test). After at least 15 weeks healing from extraction and ARP, subjects were evaluated clinically for changes alveolar ridge height, width, and extent of keratinized …
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IN-SITU PATIENT WEIGHT SENSOR MEASUREMENT SYSTEM FOR HOSPITAL BEDS
… of modular scales that are installed under the mattress on any existing hospital bed, and aims to improve the productivity of nurses and the quality of patient care.
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Investigating Vibration Levels in Neonatal Patient Transport
… shaker table. Results demonstrate that custom mattresses decreased the vibration when compared to the currently used Geo-Matrix™ mattress by 2-4 times, and use of a head restraint harness showed a decrease in vibration when compared to the standard five-point harness by 1.7-3.3 times.
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Surgical techniques used for closure of perimembranous ventricular septal defects
… suture material in a continuous horizontal mattress suture without pledgets. Surgical time, discharge echocardiograms and follow up records were reviewed to assess the incidence of complications, reoperation or residual VSD needing further follow up.
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Inverse Problems in Structural Mechanics
… patient. The smart bed is modeled as an elastic mattress core, which supports a fiber optic sensor cable. The initial and deformed geometries of the bed due to the body weight of the patient are calculated using MSC/NASTRAN for a given body pressure. The deformation of the fiber optic cable can …
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An IoT-based Pressure Injury Prevention System
… and lying pressure between a human body and a mattress or sitting surface, a battery-powered control and data transmission unit, and a suite of cloud-based software functions such as data transmission, storage database, analytical algorithms, and a data portal. The system measures pressure in …
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An instrument to investigate consumer demand, use and care of flame resistant treated textile items
… flame resistant children's sleepwear and robes, mattress pads, curtains, draperies, carpets, rugs, and bedspreads; less than one fourth of the respondents had attempted to purchase them. Over one-half the mothers were unaware of federal legislation preventing future sale of flammable textile …
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Explorations in City Image: An Investigation of Tools of Perception and Representation in Urban Design
… and results in a plaza for the local Mattress Factory Art Museum. The design phase uses and evaluates traditional perception and representational tools of urban design. New creative maps are used to express what the traditional tools cannot. These creative maps are used to derive the …
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Physiological evaluation of sleep surfaces in healthy volunteers and patients with acute-upon-chronic lower back pain
… compared with a conventional flat innerspring mattress (CM). Accordingly the aim of this thesis was to measure the EMG activity, heart rate response, perception of comfort and pattern of pressure distribution after lying on a variety of different surfaces, thus endeavouring to determine a …
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Multi-sensor signal processing methods for home monitoring of cardiovascular and respiratory diseases
… Specifically, over-night data from an under-the-mattress impulse radio ultra-wide band (IR-UWB) radar combined with the signals from a microphone sensor were analyzed using machine learning algorithms to detect sleep apnea, a sleep related respiratory disorder caused by involuntary cessation of …
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Exercise in artificial gravity
… support beams. We also added a sliding mattress with linear ball bearings on rails, so that the subject's body can move up and down while stepping. Design changes and exercise feasibility were validated by having subjects exercise during centrifugation at 23 rpm. We measured heart rate, …
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Passive Noise Control in Incubators
… incubator. In the experimental portion, porous mattresses were analyzed to reduce SPL values. These same test scenarios were modeled using the FE software. Using this model, extensive studies were performed on an arrangement of porous mattress materials with simple foam shapes to determine sound …
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Sites of Passage: Art as Action in Egypt and the US-- Creating an Autoethnography Through Performance Writing, Revolution, and Social Practice
… 9, 2011-February 14, 2012 (extended) at the Mattress Factory Museum, one of the only installation art museums of its kind. The exhibit included site-specific works, curatorial tours, discussion panels, workshops, community outreach, and a performance series. I curated all of the artists into …
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Optimising the decommissioning of pipeline protection structures in the North Sea
… protection structures, including concrete mattresses, grout bags and rockdump, are used to protect and support pipelines on the seabed. The OSPAR 98/3 decision to ban offshore disposal of decommissioned installations does not cover pipeline protection structures, although current UK …
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Recognition of sleep stages from sensor data
… (MUHBS) is such a sensor. It is placed under the mattress and hence, it has no contact with the body. The ultimate goal of this work is to recognize sleep stages using this non-invasive bed sensor. Sleep data were collected with this bed sensor and a MindoHydra wearable EEG device as the ground …
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