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Hydration Sensor Could Improve Dialysis

  • Magazine Article
  • TBMG-35344
Published 2019-10-01 by Tech Briefs Media Group in United States

A new portable sensor can accurately measure patients’ hydration levels using a technique known as nuclear magnetic resonance (NMR) relaxometry. Such a device could be useful for not only dialysis patients but also people with congestive heart failure, as well as athletes and elderly people who may be in danger of becoming dehydrated.

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Development of Subject-Specific Elderly Female Finite Element Models for Vehicle Safety

Chongqing University-Yunlei Yin, Junming Li, Qingmiao Wang
State Key Lab of Veh NVH & Safety Technology/Chongqing Univ-Wenxiang Dong, Zhenfei Zhan
Published 2019-04-02 by SAE International in United States
Previous study suggested that female, thin, obese, and older occupants had a higher risk of death and serious injury in motor vehicle crashes. Human body finite element models were a valuable tool in the study of injury biomechanics. The mesh deformation method based on radial basis function(RBF) was an attractive alternative for morphing baseline model to target models. Generally, when a complex model contained many elements and nodes, it was impossible to use all surface nodes as landmarks in RBF interpolation process, due to its prohibitive computational cost. To improve the efficiency, the current technique was to averagely select a set of nodes as landmarks from all surface nodes. In fact, the location and the number of selected landmarks had an important effect on the accuracy of mesh deformation. Hence, how to select important nodes as landmarks was a significant issue. In the paper, an efficient peak point-selection RBF mesh deformation method was used to select landmarks. The multiple peak points were selected to expand landmarks set, so as to improve the morphing quality compared…
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Quantification of Sternum Morphomics and Injury Data

Chantal Parenteau
General Motors-Barbara Bunn, Suzanne Johannson
Published 2019-04-02 by SAE International in United States
Crash safety researchers have an increased concern regarding the decreased thoracic deflection and the contributing injury causation factors among the elderly population. Sternum fractures are categorized as moderate severity injuries, but can have long term effects depending on the fragility and frailty of the occupant. Current research has provided detail on rib morphology, but very little information on sternum morphology, sternum fracture locations, and mechanisms of injury. The objective of this study is two-fold (1) quantify sternum morphology and (2) document sternum fracture locations using computed tomography (CT) scans and crash data. Thoracic CT scans from the University of Michigan Hospital database were used to measure thoracic depth, manubriosternal joint, sternum thickness and bone density. The sternum fracture locations and descriptions were extracted from 63 International Center for Automotive Medicine (ICAM) crash cases, of which 22 cases had corresponding CT scans. The University of Michigan Internal Review Board (HUM00043599 and HUM00041441) approved the use of crash cases and CT scan data.The sternum morphomics data showed the thoracic depth increased, except for the 60-74-year-old age group.…
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Analysis of Single-Vehicle Accidents in Japan Involving Elderly Drivers

SAE International Journal of Transportation Safety

National Traffic Safety & Enviro Lab.-Kazumoto Morita, Michiaki Sekine
  • Journal Article
  • 09-06-01-0002
Published 2018-06-05 by SAE International in United States
The Japanese population is aging rapidly, raising the number of traffic accidents involving elderly drivers. In Japan, single-vehicle accidents are a serious problem because they often result in fatalities. We analyzed these accidents by vehicle type, age group, and driving area. To examine the risk of accidents of the elderly drivers, their driving frequency needs to be considered, which is less. Moreover, it is difficult to know the actual distance driven by them. Therefore, in this article, based on the assumption that the number of rear-end collisions is a proxy for the traffic volume, we used the number of such collisions as a control for the driving frequency. It was found that in single-vehicle accidents, elderly drivers were at higher risk than other age groups, especially when driving light motor vehicles (K-type vehicles) in non-urban areas. A possible explanation is the higher frequency with which the elderly drive K-type vehicles in areas where there are few other vehicles on the road.
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Automating Personal Safety with Wearable Smart Jewelry

  • Magazine Article
  • TBMG-29012
Published 2018-06-01 by Tech Briefs Media Group in United States

A major challenge to assault prevention is that during an assault, victims often do not have an easily accessible way to call for help. Whether calling 911 or using an emergency alert app or device, the user has to press a button in order to call for help. That is often not possible while a violent act is taking place or if a person is unconscious as a result of the assault.

HANDHELD AND WEARABLE DEVICES: Paving a New Path for Healthcare

  • Magazine Article
  • TBMG-28920
Published 2018-05-01 by Tech Briefs Media Group in United States

Technology is transforming many aspects of the healthcare industry, and the patient care experience is an important facet of the healthcare ecosystem. With the advent of the Internet of Things (IoT) and adoption of health-focused wearables, patient care technology has become increasingly complex while at the same time allowing for greater efficiency. As IoT adoption has grown exponentially across the consumer and business landscape, these new technological solutions are being adapted to help those seeking better medical care take a proactive role in their health and overall well-being. These new devices are making healthcare more efficient while enabling an improved patient experience.

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Development of a Real-Time Stroke Detection System for Elderly Drivers Using Quad-Chamber Air Cushion and IoT Devices

Daewon Precision-Jae Hun Hur, Woojae Jin
Korea Research Institute of Standards & Science-Se Jin Park, Seunghee Hong, Damee Kim, Young Seo, Iqram Hussain
Published 2018-04-03 by SAE International in United States
IoT (Internet of things) is considered most innovative technology in smart healthcare monitoring system which is able to show real-time physiological parameters feed data to web cloud, analysis using machine learning, artificial intelligence and big data. Stroke is most deadly diseases and real-time monitoring is desired to detect stroke onset during regular activities. The aim of our study is to develop a Real-time health monitoring system for elderly drivers using air cushion seat and IoT devices in order to detect stroke onset during driving. We have also made a prototype of brain stroke detection system using Quad-chamber air cushion system and IoT devices. This system can measure ECG, EEG, heart rate, seat pressure balance data, face/eye tracking etc. using IoT sensors, compare real-time data with reference data, predict abnormality, generate alarm and send message to relatives and emergency services if any stroke onset happens in order to provide emergency assistance to driver.
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Device-Free Motion Tracing Using WiFi Signals

  • Magazine Article
  • TBMG-27979
Published 2017-12-01 by Tech Briefs Media Group in United States

Fine-grained human motion tracing — the ability to trace the trajectory of a moving human hand or leg, or even the whole body — is a general capability that is useful in a wide variety of applications. It can be used for gesture recognition and virtual touch-screens (e.g. Kinect-style natural user interfaces), activity recognition, monitoring of young infants and the elderly, or security applications such as intruder detection. Motivated by these applications, depth-sensing-based systems have been developed to implement motion tracing capabilities in cameras; however, these devices are limited because they have a constrained field of view (around 2 to 4 m range with a 60-degree aperture), and do not work in non-line-of-sight scenarios, preventing their use in many applications such as whole-home activity recognition, security, and elderly care.

Miniature Airborne Particle Mass Monitor

  • Magazine Article
  • TBMG-28015
Published 2017-12-01 by Tech Briefs Media Group in United States

Particulate matter (PM) exposure and health effects have become top U.S. environmental research agenda items over the past decade. Environmental epidemiological studies rely on information from both sides of the dose-response equation: risk factor measures and health outcome data. The ability to resolve relationships from environmental data depends upon the quantity, accuracy, specificity, and precision of both. Although health surveillance and data collection methods have improved dramatically through database system advances, the techniques for PM exposure are not adequate.

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Senior Drivers, Bicyclists and Pedestrian Behavior Related with Traffic Accidents and Injuries

Applus + Idiada Spain-Alba Fornells, Núria Parera, Adria Ferrer
Fiat Chrysler Automobiles-Anita Fiorentino
Published 2017-03-28 by SAE International in United States
While accident data show a decreasing number of fatalities and serious injuries on European Union (EU) roads, recent data from ERSO (European Road Safety Observatory) show an increasing proportion of elderly in the fatality statistics. Due to the continuous increase of life expectancy in Europe and other highly-developed countries, the elderly make up a higher number of drivers and other road users such as bicyclists and pedestrians whose mobility needs and habits have been changing over recent years. Moreover, due to their greater vulnerability, the elderly are more likely to be seriously injured in any given accident than younger people. With the goal of improving the safety mobility of the elderly, the SENIORS Project, funded by the European Commission, is investigating and assessing the injury reduction that can be achieved through innovative tools and safety systems. The first step was to develop the required understanding of accident scenarios, injury mechanisms and risks and to implement these findings in the test tool and test assessment procedures. To this end, accident databases were studied and compared regarding…
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