Energy & Green Tech
Researchers have used new technology to create an electric flare stack that significantly reduces CO2 emissions compared to gas flares that are currently used by oil refineries to control pollution.
Dec 12, 2023
0
18
Robotics
Seeing robots made with soft, flexible parts in action appears to lower people's anxiety about working with them or even being replaced by them.
Dec 5, 2023
0
83
Software
Apple's iOS 17 operating system is expected to drop any day. The software update comes with several new features, including a tool for daily mood and emotion logging—a technique known to emotion researchers as "experience ...
Sep 12, 2023
0
6
Engineering
Pumping liquids may seem like a solved problem but optimizing the process is still an area of active research. Any pumping application—from industrial scales to heating systems at home—would benefit from a reduction in ...
Sep 6, 2023
0
24
Electronics & Semiconductors
Scientists at the University of Sussex have successfully trialed new biodegradable health sensors that could change the way we experience personal health care and fitness monitoring technology.
Mar 2, 2023
0
56
Computer Sciences
Could an app tell if a first date is just not that into you? Engineers at the University of Cincinnati say the technology might not be far off. They trained a computer—using data from wearable technology that measures respiration, ...
Feb 13, 2023
0
21
Engineering
Researchers have developed 3D printed artificial heart valves designed to allow a patient's own cells to form new tissue. To form these scaffolds using melt electrowriting—an advanced additive manufacturing technique—the ...
Jun 2, 2022
0
328
Engineering
A new preparation technique fabricates thin, silicone-based patches that rapidly wick water away from the skin. The technique could reduce the redness and itching caused by wearable biosensors that trap sweat beneath them. ...
Feb 22, 2021
0
38
Electronics & Semiconductors
Researchers at the University of Colorado Boulder are developing a wearable electronic device that's "really wearable"—a stretchy and fully-recyclable circuit board that's inspired by, and sticks onto, human skin.
Nov 6, 2020
1
248
Energy & Green Tech
North Carolina State University engineers have demonstrated a flexible device that harvests the heat energy from the human body to monitor health. The device surpasses all other flexible harvesters that use body heat as the ...
Jan 30, 2020
0
84
The human heart provides a continuous blood circulation through the cardiac cycle and is one of the most vital organs in the human body. It is divided into four chambers: the two upper chambers are called the left and right atria and two lower chambers are called the right and left ventricles. Normally the right ventricle pumps the same blood amount into the lungs with each bit that the left ventricle pumps out. Physicians commonly refer to the right atrium and right ventricle together as the right heart and to the left atrium and ventricle as the left heart.
The electric energy that stimulates the heart occurs in the sinoatrial node, which produces a definite potential and then discharges, sending an impulse across the atria. The Purkinje fibers transmit the electric charge to the myocardium while the cells of the atrial walls transmit it from cell to cell, making the atrial syncytium.
The human heart and its disorders (cardiopathies) are studied primarily by cardiology.
This text uses material from Wikipedia, licensed under CC BY-SA
