Purdue University researchers developed a device to decrease energy consumption of the vapor-compression heat pump cycle, which is commonly used in homes, businesses and vehicles for cooling and heating. The team created a novel turbomachine expander that helps harvest previously wasted energy used in the process of moving the air from high to low pressure. The device can be used as a control agent within an existing heat pump.
Researchers have developed the first decentralized algorithm with a collision-free, deadlock-free guarantee and validated it on a swarm of 100 autonomous robots in the lab.
Dr. Hun-Gi Jung and his research team at the Center for Energy Storage Research of the Korea Institute of Science and Technology have announced the development of silicon anode materials that can increase battery capacity four-fold in comparison to graphite anode materials and enable rapid charging to more than 80% capacity in only five minutes. When applied to batteries for electric vehicles, the new materials are expected to more than double their driving range.
A catalyst is needed for a chemical process that releases hydrogen from an H2O molecule. It can be made, for example, from platinum, or from molybdenum. But these are quite expensive materials. Therefore, the output energy is expensive too.
New machine learning method from Stanford, with Toyota and MIT researchers, has slashed battery testing times -- a key barrier to longer-lasting, faster-charging batteries for electric vehicles -- by nearly fifteenfold.
Avoiding unnecessary bleeding during neuroendoscopic surgeries is crucial. When blood vessel location in a tumor cannot be visually confirmed, unintentional damage to the vessel and subsequent bleeding may occur. We propose a method for tumor blood vessel detection using a surgical robot system equipped with a force sensor in the gripper. Using this method, pulsation of a simulated artery inside a simulated tumor was detected by the force sensor, displayed as a gripping force wave.
Greater use of electric vehicles might be good for the environment, but further growth hinges on continued availability of critical battery components such as cobalt. Cell phones and other electronics also depend on the element's availability. Supplies of the metal are adequate in the short term, but shortages could develop down the road if refining and recycling aren't ramped up or made more efficient, according to research published in ACS' Environmental Science & Technology.
A study by University of Oxford researchers, published today in Social Science & Medicine, has found that ride-hailing provider, Uber, is associated with a 9% decline in serious road accident injuries in the UK. However, that relative improvement is counterbalanced by the fact that there was an increase in slight road accident injuries in London.
In a new research paper, ;Phantom of the ADAS,' the researchers demonstrated that autopilots and advanced driving-assistance systems (ADASs) in semi-autonomous or fully autonomous cars register depthless projections of objects (phantoms) as real objects. They show how attackers can exploit this perceptual challenge to manipulate the vehicle and potentially harm the driver or passengers without any special expertise by using a commercial drone and inexpensive image projector.
Snakes live in diverse environments ranging from unbearably hot deserts to lush tropical forests, where they slither up trees, rocks and shrubbery every day. By studying how these serpents move, Johns Hopkins engineers have created a snake robot that can nimbly and stably climb large steps.