Design and Implementation of a Stepped Frequency Continuous Wave Radar System for Biomedical Applications

There is a need to detect vital signs of human (e.g., the respiration and heart-beat rate) with noncontact method in a number of applications such as search and rescue operation (e.g. earthquakes, fire), health monitoring of the elderly, performance monitoring of athletes Ultra-wideband radar system can be utilized for noncontact vital signs monitoring and tracking of various human activities of more than one subject. Therefore, a stepped-frequency continuous wave radar (SFCW) system with wideband performance is designed and implemented for Vital signs detection and fall events monitoring. The design of the SFCW radar system is firstly developed using off-the-shelf discrete components. Later, the system is implemented using surface mount components to make it portable with low cost. The measurement result is proved to be accurate for both heart rate and respiration rate detection within ±5% when compared with contact measurements. Furthermore, an electromagnetic model has been developed using a multi-layer dielectric model of the human subject to validate the experimental results. The agreement between measured and simulated results is good for distances up to 2 m and at various subjects’ orientations with respect to the radar, even in the presence of more than one subject. The compressive sensing (CS) technique is utilized to reduce the size of the acquired data to levels significantly below the Nyquist threshold. In our demonstration, we use phase information contained in the obtained complex high-resolution range profile (HRRP) to derive the motion characteristics of the human. The obtained data has been successfully utilized for non-contact walk, fall and limping detection and healthcare monitoring. The effectiveness of the proposed method is validated using measured results

Propaedeutics of Internal Diseases

УЧЕБНЫЕ ПОСОБИЯВНУТРЕННИЕ ОРГАНЫ /ПАТОЛОГИЯДИАГНОСТИКАТЕРАПИЯ (ДИСЦИПЛИНА)ПАТОЛОГИЧЕСКИЕ СОСТОЯНИЯ, ПРИЗНАКИ БОЛЕЗНЕЙ И СИМПТОМЫINTERNAL MEDICINEВНУТРЕННИЕ БОЛЕЗНИINTERNAL DISEASESPROPAEDEUTICS OF INTERNAL DISEASESИНОСТРАННЫЕ СТУДЕНТЫУчебное пособие написано в соответствии с типовой учебной программой по дисциплине "Пропедевтика внутренних болезней" для специальности "Лечебное дело", утвержденной Министерством здравоохранения Республики Беларусь 04.09.2014. Издание содержит следующие разделы: субъективное и объективное обследование в клинике внутренних болезней, обследование пациентов с заболеваниями системы органов дыхания и системы кровообращения. Предназначается для студентов 2 и 3 курсов, изучающих пропедевтику внутренних болезней на английском языке

Aerospace Medicine and Biology: A continuing bibliography with indexes (supplement 167)

This bibliography lists 235 reports, articles, and other documents introduced into the NASA scientific and technical information system in April 1977

Spacelab Science Results Study

Beginning with OSTA-1 in November 1981 and ending with Neurolab in March 1998, a total of 36 Shuttle missions carried various Spacelab components such as the Spacelab module, pallet, instrument pointing system, or mission peculiar experiment support structure. The experiments carried out during these flights included astrophysics, solar physics, plasma physics, atmospheric science, Earth observations, and a wide range of microgravity experiments in life sciences, biotechnology, materials science, and fluid physics which includes combustion and critical point phenomena. In all, some 764 experiments were conducted by investigators from the U.S., Europe, and Japan. The purpose of this Spacelab Science Results Study is to document the contributions made in each of the major research areas by giving a brief synopsis of the more significant experiments and an extensive list of the publications that were produced. We have also endeavored to show how these results impacted the existing body of knowledge, where they have spawned new fields, and if appropriate, where the knowledge they produced has been applied

Fluctuations of attention network activation during the resting state reflect fluctuations in subjective attentional state.

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