Research

Oct
15

SmartSealz

he  high  emphasis  on  safety  while  operating vehicles, planes, and heavy machinery is essential. The operators, the company, and the public have great interest in safety due to concerns of public relations and customer well-being.  This  project  pursues  the  creation  of  a physiological alertness feedback  device  or “smart” ear seals for astronauts, pilots, and heavy […]

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Oct
15

Sleep Apnea

Sleep breathing disorder (SBD), characterized as abnormalities in breathing pattern during sleep, is quite common worldwide and largely undiagnosed. Since the recognition of sleep apnea in the late 1970s as the most common sleep breathing disorder, the emphasis on monitoring and measurement of respiratory flow and efforts during sleep has significantly increased. Measurement of both […]

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Oct
15

SCG Annotation

The SCG signal is measured by placing an accelerometer on the torso which captures the induced vibration of the heart propagated to the surface of the chest. The feasibility of using seismocardiogram (SCG), in conjunction with ECG, for finding cardiac time intervals was first investigated in 1990’s and has also been recently verified. Specific peaks […]

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Respiration Analysis of SCG

Respiration  affects  the  cardiovascular  system  significantly  and  this  is  observed  in  hemodynamic parameters  such  as  stroke  volume  and  heart  rate. The  morphology  of  signals  relevant  to  the  heart  also changes  with  respiration.  Such  changes  have  been  used  to  extract  respiration  signal  from  the electrocardiogram (ECG). It is also shown that accelerometers placed on the body […]

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PTT

SCG is a low frequency sternum vibrations, recorded by accelerometers 11. Certain points on SCG morphology correspond to aortic valve opening and closure, and from the time locations of these points, it is possible to derive systolic time intervals of pre-ejection period and left ventricular ejection time 12. PPG sensor on the other hand, is […]

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Blood Pressure Estimation

In this research we are exploring a Seismocardiogram (SCG) and Photoplethysmogram (PPG) signal as a marker of proximal pulse and distal pulse respectively for computing pulse transit time (PTT). PTT is a time taken by a pulse wave to travel from proximal site to the distal site, PTT being inversely proportional to blood pressure can […]

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Parkinson

The second most common neurodegenerative disease is Parkinson’s disease (PD). PD is a chronic and progressive ailment in which the brain is unable to control body movement. Typical symptoms of PD include resting tremor, bradykinesia, and postural instability. Although medications have been helpful in treating PD symptoms, currently, there is no cure for PD and […]

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Hemorrhage

Over 40% of deaths within 24 hours of a traumatic injury are due to hemorrhage1. The early application of life saving interventions, before the development of circulatory shock, is a priority in dealing with hemorrhage. Mortality can be significantly reduced when patients needing immediate care can be identified early. Traditionally patients are diagnosed based on […]

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Hand Arthritis

Hand  Arthritis  is  one  of  the  most  common  health  problems  affecting  people throughout the world and primarily affects the articulating joints of the hand and can cause pain, deformity and moderate to severe disability. Hand arthritis is actually grouped into two  main  types;  osteoarthritis  (OA)  and  inflammatory  arthritis  (IA)  that  includes rheumatoid arthritis (RA). The […]

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Concussion

Concussion, also referred as mild traumatic brain injury is one of the most common occurrences in high impact games like football, ice hockey, rugby as well as other fast spaced sports. According to the CDC, between 2001 and 2009, an estimated 173,285 people under age 19 were treated in hospital emergency rooms for concussion related […]

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