Researchers at the Fraunhofer Institute for Digital Media Technology IDMT in Oldenburg have developed a new method for collecting and analyzing vital signs from the human body by using radar. The key feature is that the radar ...
Sep 27, 2023
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Recently, a team led by Prof. Chen Yan and researcher Sun Qibin from the University of Science and Technology of China (USTC) achieved contactless electrocardiogram (ECG) monitoring through a millimeter-wave radar system. ...
Dec 13, 2022
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The majority of heart attacks and strokes in the world are ischemic, meaning a clot or buildup of plaque in an artery prevents oxygen-rich blood from reaching cells in the heart or brain. Blocked for too long, tissues die.
Jul 19, 2022
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Micro-Doppler radars could soon be used in clinical settings to predict injury risk and track recovery progress, according to Penn State researchers.
Mar 4, 2021
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Scientists estimate that nearly 60% of all cancer patients do not respond effectively to chemotherapy treatments. Even worse—many of those same patients experience toxic and sometimes deadly side effects.
Oct 22, 2020
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There is increasing interest in technology for non-contact measurement of human vital signs (heart rate, respiration, and body temperature), which are important for understanding the state of a person's health. New biological ...
Jun 12, 2019
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A radar system developed at the University of Waterloo can wirelessly monitor the vital signs of patients, eliminating the need to hook them up to any machines.
May 3, 2019
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AICAr (5-amino-4-imidazolecarboxamide riboside, also called Acadesine) has been found to inhibit cell proliferation and has cytotoxic potential for childhood acute lymphoblastic leukemia (ALL) cells. Much of the drug's cytotoxic ...
Jan 31, 2019
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Soldiers at radar installations who were exposed to high doses of radiation during their service passed on more genetic alterations to their children than families without radiation exposure. This has been demonstrated in ...
Oct 8, 2018
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People with diabetes could be able to monitor their blood sugar without drawing blood using a system now being developed at the University of Waterloo.
Jun 28, 2018
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Radar is an object detection system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and fixed objects such as aircraft, ships, motor vehicles, weather formations, and terrain. The term RADAR was coined in 1941 as an acronym for radio detection and ranging. The term has since entered the English language as a standard word, radar, losing the capitalization. Radar was originally called RDF (Radio Direction Finder, now used as a totally different device) in the United Kingdom.
A radar system has a transmitter that emits microwaves or radio waves. These waves are in phase when emitted, and when they come into contact with an object are scattered in all directions. The signal is thus partly reflected back and it has a slight change of wavelength (and thus frequency) if the target is moving. The receiver is usually, but not always, in the same location as the transmitter. Although the signal returned is usually very weak, the signal can be amplified through use of electronic techniques in the receiver and in the antenna configuration. This enables radar to detect objects at ranges where other emissions, such as sound or visible light, would be too weak to detect. Radar is used in meteorological detection of precipitation, measuring ocean surface waves, air traffic control, police detection of speeding traffic, and by the military.
This text uses material from Wikipedia, licensed under CC BY-SA
