density

Photo: Genevieve Martin/ORNL, US Dept. of Energy Oak Ridge National Laboratory (ORNL) researchers wirelessly charged a light-duty passenger EV at 100 kW with 96% efficiency – a new milestone. Scientists at the US Department of Energy-funded ORNL wirelessly charged the EV using polyphase electromagnetic coupling coils with rotating magnetic fields. ORNL’s patented system transferred power to a Hyundai Kona EV across a five-inch air gap using electromagnetic fields, a process similar to…

Learn how Kernel Density Estimation works and how you can adjust it to better handle bounded data, like age, height, or pricePhoto by Maxim Berg on UnsplashHistograms are widely used and easily grasped, but when it comes to estimating continuous densities, people often resort to treating it as a mysterious black box. However, understanding this concept is just as straightforward and becomes crucial, especially when dealing with bounded data like age, height, or price, where available libraries may not handle it…

The FDA has provided clearance for a medical device called Osteoboost, a vibrating belt that improves bone density in patients with osteopenia. The device, which was developed by California-based startup Bone Health Technologies and in part with NASA, is the first medical device of its kind to get regulatory approval as a treatment option for postmenopausal women.One in two older women who have experienced menopause gets osteoporosis (the disease that comes after prolonged and untreated osteopenia), which is characterized…

Samsung is currently showcasing several new display technologies at the CES 2024 expo. Its new QD-OLED panels meant for TVs and monitors are brighter, while its laptop OLED screens are thinner than ever. The company also unveiled several foldable, rollable, slideable, and hybrid OLED screens for automobiles, phones, tablets, laptops, and more. In addition, it has unveiled a new type of micro display, called OLEDoS, that is meant to be used in XR headsets. This OLEDoS panel will likely be used in Samsung's upcoming XR…

A breakthrough in hybrid supercapacitors has been achieved by increasing the active material in electrodes through a novel method involving β-Ni(OH)2 and NH4F. This innovation leads to more efficient energy storage, opening new possibilities for advanced energy systems. Credit: SciTechDaily.comNew research enhances hybrid supercapacitors by creating more efficient electrodes, marking a significant step forward in energy storage technology.Like batteries, supercapacitors are a type of energy-storage device. However, while…

An in-depth exploration of histograms and KDEContinue reading on Towards Data Science » An in-depth exploration of histograms and KDEContinue reading on Towards Data Science » FOLLOW US ON GOOGLE NEWS Read original article here Denial of responsibility! Techno Blender is an automatic aggregator of the all world’s media. In each content, the hyperlink to the primary source is specified. All trademarks belong to their rightful owners, all materials to their authors. If you are the owner of the content and do…

It’s taken more than three decades, but scientists believe they have created a material that’s almost impossible to break and could rival diamond as the hardest substance on the planet.An international team led by researchers from the Center for Science at Extreme Conditions at the University of Edinburgh have made a breakthrough, synthesizing carbon and nitrogen precursors to create carbon nitrades, which are tougher than cubic boron nitrade – currently the second hardest material behind diamond."Upon the discovery of…

Physics questions are the most fun when people don't immediately agree on the answer. What feels intuitive or obvious—sometimes isn’t. We can argue over the solution for hours of entertainment, and we might even learn something in the end.Here's one of these seemingly obvious questions that's been around a long time: Suppose a large rock is on a boat that is floating in a very small pond. If the rock is dumped overboard, will the water level of the pond rise, fall, or remain unchanged?Go ahead and debate it with your…

RMIT engineers say they've tripled the energy density of cheap, rechargeable, recyclable proton flow batteries, which can now challenge commercially available lithium-ion batteries for capacity with a specific energy density of 245 Wh/kg.That's as compared to the ~260-odd Wh/kg delivered by the lithium-ion batteries in a current Tesla Model 3 battery pack, but without using any lithium, thus avoiding a forecasted lithium squeeze, as well as geopolitically sensitive dependence on China in the battery supply chain, and all…

Researchers have used machine learning to assess bone density scans for calcification in the aorta, the body’s main artery. They say their method could be used to predict future cardiovascular and other disease, even before symptoms appear.Just as calcification, or the deposit of calcium, on the inner wall of blood vessels in the heart can be problematic, so can calcification of the aorta, the largest artery in the body. Exiting the heart, it branches upward to supply blood to the brain and arms and extends down to the…