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ScienceDaily: Top Technology News |
| Posted: 18 Mar 2022 02:05 PM PDT Researchers have discovered a new form of ice, redefining the properties of water at high pressures. |
| Conversion process turns pollution into cash Posted: 18 Mar 2022 01:14 PM PDT Engineers have developed a promising electrochemical system to convert emissions from chemical and power plants into useful products while addressing climate change. |
| Researchers use unique ingredient to strengthen bamboo Posted: 18 Mar 2022 01:14 PM PDT Researchers have adapted a technique -- originally designed to embalm human remains -- to strengthen the properties of biocomposites and make them stronger. With the innovation of new materials and green composites, it is easy to overlook materials like bamboo and other natural fibers, explains one of the researchers. These fibers are now used in many applications such as clothing, the automotive industry, packaging and construction. |
| Artificial intelligence paves the way to discovering new rare-earth compounds Posted: 18 Mar 2022 01:14 PM PDT Artificial intelligence advances how scientists explore materials. Researchers trained a machine-learning (ML) model to assess the stability of rare-earth compounds. The framework they developed builds on current state-of-the-art methods for experimenting with compounds and understanding chemical instabilities. |
| Could we make cars out of petroleum residue? Posted: 18 Mar 2022 01:14 PM PDT Researchers have developed a way to make lightweight fibers, for possible use in the bodies of cars, out of an ultracheap feedstock: the waste material from the refining of petroleum. |
| Researchers develop the world's first power-free frequency tuner using nanomaterials Posted: 18 Mar 2022 10:16 AM PDT Phase-change nanowires could serve as the ultimate tunable frequency synthesizers and filters for the future of IoT and 5G networks. |
| Turning any camera into a polarization camera Posted: 18 Mar 2022 07:49 AM PDT Researchers have developed a metasurface attachment that can turn just about any camera or imaging system, even off-the-shelf systems, into polarization cameras. The attachment uses a metasurface of subwavelength nanopillars to direct light based on its polarization and compiles an image that captures polarization at every pixel. |
| A unified theory of electrochemical energy storage: Bridging batteries and supercapacitors Posted: 18 Mar 2022 07:49 AM PDT An international team of researchers suggests that all electrochemical energy storage mechanisms exist on a spectrum between physical and chemical retention of ions. |
| Electron powers a weak but significant bond for building complex structures Posted: 18 Mar 2022 06:21 AM PDT How do you bring together two molecules that positively repel each other? A research team has developed a simple and versatile solution: Introduce an electron with a jolt of electricity, and resistance between the two is reduced and a bond formed. This fundamentally new type of catalysis will offer chemists and biologists a tool for promoting and controlling molecular recognition and self-assembly, enabling them to build complex structures. |
| New strategy for designing thermoelectric materials Posted: 17 Mar 2022 11:37 AM PDT Scientists have developed a new approach to the design of thermoelectric materials by constructing a database of electronic structure parameters correlated with materials' thermoelectric conversion properties and by a comprehensive analysis of the database. This approach can be used to develop higher performance thermoelectric materials. |
| Making memory serve correctly: Fixing an inherent problem in next-generation magnetic RAM Posted: 17 Mar 2022 11:37 AM PDT SOT-RAM, a promising type of next-generation magnetic memory, could pave the way to ultra-low-power electronics. However, scientists have identified a source of disturbance during the read operation in SOT-RAMs that compromises their reliability. Fortunately, they also found a method to greatly reduce this disturbance by slightly modifying the SOT-RAM structure. Their findings will help make this type of memory faster and more reliable, helping its commercialization for sustainable IoT applications. |
| AI provides accurate breast density classification Posted: 17 Mar 2022 09:04 AM PDT An artificial intelligence (AI) tool can accurately and consistently classify breast density on mammograms, according to a new study. |
| Mathematical paradoxes demonstrate the limits of AI Posted: 17 Mar 2022 09:03 AM PDT Humans are usually pretty good at recognizing when they get things wrong, but artificial intelligence systems are not. According to a new study, AI generally suffers from inherent limitations due to a century-old mathematical paradox. |
| Engineering an 'invisible cloak' for bacteria to deliver drugs to tumors Posted: 17 Mar 2022 09:03 AM PDT Researchers have genetically engineered a microbial encapsulation system for therapeutic bacteria that can hide them from immune systems, enabling them to reach tumors more effectively and kill cancer cells in mice. |
| Photonic encryption platform in the ultraviolet and visible Posted: 17 Mar 2022 08:19 AM PDT An anticounterfeiting and tampering prevention system using ultraviolet and visible light has been recently proposed. This technology was developed using the metasurface, capable of freely controlling light and anticipated to be applicable in various industries. This study is significant in that it has resolved a long-standing issue for metasurface, which could not be operated in the ultraviolet regime. |
| Moon's orbit proposed as a gravitational wave detector Posted: 17 Mar 2022 06:47 AM PDT Researchers propose using the variations in distance between the Earth and the Moon, which can be measured with a precision of less than a centimeter, as a new gravitational wave detector within a frequency range that current devices cannot detect. The research could pave the way for the detection of signals from the early universe. |
| Public transport: AI assesses resilience of timetables Posted: 17 Mar 2022 06:47 AM PDT A brief traffic jam, a stuck door, or many passengers getting on and off at a stop - even small delays in the timetables of trains and buses can lead to major problems. A new artificial intelligence (AI) could help designing schedules that are less susceptible to those minor disruptions. |
| Novel theory of entropy may solve materials design issues Posted: 16 Mar 2022 02:33 PM PDT A challenge in materials design is that in both natural and humanmade materials, volume sometimes decreases, or increases, with increasing temperature. While there are mechanical explanations for this phenomenon for some specific materials, a general understanding of why this sometimes happens remains lacking. |
| BirdBot is energy-efficient thanks to nature as a model Posted: 16 Mar 2022 11:57 AM PDT A team of scientists has constructed a robot leg that, like its natural model, is very energy efficient. BirdBot benefits from a foot-leg coupling through a network of muscles and tendons that extends across multiple joints. In this way, BirdBot needs fewer motors than previous legged robots and could, theoretically, scale to large size. |
| Posted: 16 Mar 2022 10:27 AM PDT Researchers have found a way to improve the ability of catalysts made from metal-metal oxides to convert non-edible plants, such as wood, grass and corn stover into renewable fuels, chemicals and plastics. Metal oxide catalysts are central to reactions for upgrading petrochemicals, fine chemicals, pharmaceuticals and biomass. |
| Cheaper, more efficient ways to capture carbon Posted: 16 Mar 2022 10:27 AM PDT Researchers have developed a new tool that could lead to more efficient and cheaper technologies for capturing heat-trapping gases from the atmosphere and converting them into beneficial substances, like fuel or building materials. |
| Scientists devise new technique to increase chip yield from semiconductor wafer Posted: 16 Mar 2022 10:26 AM PDT Scientists have developed a technique to create a highly uniform and scalable semiconductor wafer, paving the way to higher chip yield and more cost-efficient semiconductors. |
| What's the prevailing opinion on social media? Look at the flocks, says researcher Posted: 16 Mar 2022 10:26 AM PDT A communication researcher has developed a framework for measuring the slippery concept of social media public opinion. Murmuration identifies meaningful groups of social media actors based on the 'who-follows-whom' relationship. The actors attract like-minded followers to form 'flocks,' which serve as the units of analysis. As opinions form and shift in response to external events, the flocks' unfolding opinions move like the fluid murmuration of airborne starlings. |
| Pivotal technique harnesses cutting-edge AI capabilities to model and map the natural environment Posted: 16 Mar 2022 10:26 AM PDT Scientists have developed a pioneering new technique that harnesses the cutting-edge capabilities of AI to model and map the natural environment in intricate detail. |
| Tiny battery-free devices float in the wind like dandelion seeds Posted: 16 Mar 2022 09:08 AM PDT Inspired by how dandelions use the wind to distribute their seeds, a team has developed a tiny sensor-carrying device that can be blown by the wind as it tumbles toward the ground. |
| New acoustic fabric converts audible sounds into electrical signals Posted: 16 Mar 2022 09:08 AM PDT Researchers have developed a new acoustic fabric converts audible sounds into electrical signals. They designed a fabric that works like a microphone, converting sound first into mechanical vibrations, then into electrical signals, similarly to how our ears hear. |
| Toward a quantum computer that calculates molecular energy Posted: 16 Mar 2022 09:08 AM PDT Researchers have developed an algorithm that uses the most quantum bits to date to calculate ground state energy, the lowest-energy state in a quantum mechanical system. The discovery could make it easier to design new materials. |
| 'Self-driving' lab speeds up research, synthesis of energy materials Posted: 16 Mar 2022 08:50 AM PDT Researchers have developed and demonstrated a 'self-driving lab' that uses artificial intelligence and fluidic systems to advance our understanding of metal halide perovskite nanocrystals. This self-driving lab can also be used to investigate a broad array of other semiconductor and metallic nanomaterials. |
| New flow battery stores power in simple organic compound Posted: 16 Mar 2022 08:50 AM PDT The intermittent supply of green electricity requires large-scale storage to keep our power grids stable. Since normal batteries do not scale very well, the idea of using flow batteries, which store electricity in a fluid is attractive. Scientists have designed a flow battery electrolyte that is cheaper and is based on an organic compound, rather than a metal. |
| AI to predict antidepressant outcomes in youth Posted: 16 Mar 2022 08:50 AM PDT Researchers have taken the first step in using artificial intelligence (AI) to predict early outcomes with antidepressants in children and adolescents with major depressive disorder. |
| Getting bacteria and yeast to talk to each other, thanks to a 'nanotranslator' Posted: 16 Mar 2022 08:50 AM PDT Cells communicate with one another in the language of chemistry, but those from different kingdoms, such as bacteria and yeast, speak dialects virtually unintelligible to the other. By learning how microbes 'talk,' researchers hope to one day manipulate their behavior to protect against disease, for example. Efforts like this are in their infancy, but researchers now describe the first system that enables two unrelated organisms to communicate. |
| Wax-coated sand keeps soil wet longer, improves crop yields in arid regions Posted: 16 Mar 2022 08:50 AM PDT Dry, hot regions are difficult places to grow plants because the soil dries out quickly. As a result, farmers in arid and semi-arid regions irrigate their fields with buried networks of irrigation tubing and cover the ground with plastic sheets. But plastic sheets are expensive and create waste. Now, researchers have developed a simple, biodegradable ground cover -- wax-coated sand -- which keeps soil wet and increases crop yields. |
| Nuclear reactor power levels can be monitored using seismic and acoustic data Posted: 16 Mar 2022 08:50 AM PDT Seismic and acoustic data recorded 50 meters away from a research nuclear reactor could predict whether the reactor was in an on or off state with 98% accuracy, according to a new study. |
| Complex pathways influence time delay in ionization of molecules Posted: 16 Mar 2022 08:49 AM PDT Study shows how the mechanism of photoionization can be used to gain insights into complex molecular potentials. |
| Scientists discover how to 3D print testicular cells Posted: 16 Mar 2022 08:49 AM PDT Scientists have 3D printed human testicular cells and identified promising early signs of sperm-producing capabilities. The researchers hope the technique will one day offer a solution for people living with presently untreatable forms of male infertility. |
| Bacterial enzyme makes new type of biodegradable polymer Posted: 16 Mar 2022 06:17 AM PDT Strings of sugars called polysaccharides are the most abundant biopolymers on Earth. Because of their versatile and environmentally friendly properties, these molecules could eventually replace some plastics. Now, researchers have identified a previously unknown bacterial enzyme that can make a new type of polysaccharide, which is similar to the biopolymer chitin. The new molecule is biodegradable and could be useful for drug delivery, tissue engineering and other biomedical applications. |
| Intensity control of projectors in parallel: A doorway to an augmented reality future Posted: 16 Mar 2022 06:17 AM PDT A challenge to adopting augmented reality (AR) in wider applications is working with dynamic objects, owing to a delay between their movement and the projection of light onto their new position. But, scientists may have a workaround. They have developed a method that uses multiple projectors while reducing delay time. Their method could open the door to a future driven by AR, helping us live increasingly technology-centered lives. |
| Novel 'Trojan horse' drug delivery system uses protein-based microdroplets Posted: 16 Mar 2022 06:17 AM PDT Scientists have developed a novel method of delivering drugs into human cells using large biological molecules, by first encasing them in a protein-based microdroplet. This discovery promises to be faster, safer, more effective, and better suited for gene therapy, cancer treatment, and vaccine delivery. |
| Stackable 'holobricks' can make giant 3D images Posted: 15 Mar 2022 04:36 PM PDT Researchers have developed a new method to display highly realistic holographic images using 'holobricks' that can be stacked together to generate large-scale holograms. |
| Drug incorporated into silicone coating reduces 'foreign body reaction' to implants Posted: 14 Mar 2022 12:43 PM PDT Long-term use of implantable electronic medical devices -- such as pacemakers and cochlear implants -- is hampered by the body's reaction to foreign bodies. Now, in a study in mice, a team led by scientists has shown that this reaction can be dramatically reduced by incorporating an anti-inflammatory drug into the silicone coating around the implant. |
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