//www.koonmotors.com/news/matter_energy/engineering_and_construction/ Engineering and construction news. Read all the latest research in engineering and all types of construction. en-us Wed, 06 Sep 2023 14:50:35 EDT Wed, 06 Sep 2023 14:50:35 EDT 60 //www.koonmotors.com/images/scidaily-logo-rss.png//www.koonmotors.com/news/matter_energy/engineering_and_construction/ For more science news, visit ScienceDaily. //www.koonmotors.com/releases/2023/09/230906112446.htm A recent study has introduced a groundbreaking milestone in tissue regeneration by developing a technology that utilizes autologous blood to produce three-dimensional microvascular implants. Wed, 06 Sep 2023 11:24:46 EDT //www.koonmotors.com/releases/2023/09/230906112446.htm //www.koonmotors.com/releases/2023/09/230906112443.htm A recent study has unveiled a significant breakthrough in photoelectrode development. Wed, 06 Sep 2023 11:24:43 EDT //www.koonmotors.com/releases/2023/09/230906112443.htm //www.koonmotors.com/releases/2023/09/230905155709.htm A team of scientists developed a new machine learning model for discovering critical-element-free permanent magnet materials based on the predicted Curie temperature of new material combinations. Tue, 05 Sep 2023 15:57:09 EDT //www.koonmotors.com/releases/2023/09/230905155709.htm //www.koonmotors.com/releases/2023/09/230905125037.htm Researchers have pushed the limits of the possible in the field of atomic-scale spin-optics, creating a spin-optical laser from monolayer-integrated spin-valley microcavities without requiring magnetic fields or cryogenic temperatures. Tue, 05 Sep 2023 12:50:37 EDT //www.koonmotors.com/releases/2023/09/230905125037.htm //www.koonmotors.com/releases/2023/09/230905125016.htm By adding a naturally-occurring polymer that makes wood more porous, scientists have engineered trees easier to disassemble into simpler building blocks. Tue, 05 Sep 2023 12:50:16 EDT //www.koonmotors.com/releases/2023/09/230905125016.htm //www.koonmotors.com/releases/2023/09/230905125004.htm Beyond-silicon technology demands ultra-high-performance field-effect transistors (FETs). Transition metal dichalcogenides (TMDs) provide an ideal material platform, but the device performances such as contact resistance, on/off ratio, and mobility are often limited by the presence of interfacial residues caused by transfer procedures. We show an ideal residue-free transfer approach using polypropylene carbonate (PPC) with a negligible residue for monolayer MoS2. By incorporating bismuth semimetal contact with atomically clean monolayer MoS2-FET on h-BN substrate, we obtain an ultralow Ohmic contact resistance approaching the quantum limit and a record-high on/off ratio of ~1011 at 15 K. Such an ultraclean fabrication approach could be the ideal platform for high-performance electrical devices using large-area semiconducting TMDs. Tue, 05 Sep 2023 12:50:04 EDT //www.koonmotors.com/releases/2023/09/230905125004.htm //www.koonmotors.com/releases/2023/09/230905124850.htm A 'living material,' made of a natural polymer combined with genetically engineered bacteria, could offer a sustainable and eco-friendly solution to clean pollutants from water. Researchers developed their living material using a seaweed-based polymer and bacteria that have been programmed to produce an enzyme that transforms various organic pollutants into harmless compounds. In tests, heir material decontaminated water solutions tainted with a pollutant from textile manufacturing: indigo carmine, a blue dye that is used to color denim. Tue, 05 Sep 2023 12:48:50 EDT //www.koonmotors.com/releases/2023/09/230905124850.htm //www.koonmotors.com/releases/2023/08/230831121804.htm The day when robots can cook dinner, clear the kitchen table and empty the dishwasher is still a long way off. First, robots need to be able to recognize the many items of different sizes, shapes and brands in our homes. A team has now made a significant advance toward that technology with a robotic system that uses artificial intelligence to help robots better identify and remember objects. Thu, 31 Aug 2023 12:18:04 EDT //www.koonmotors.com/releases/2023/08/230831121804.htm //www.koonmotors.com/releases/2023/08/230831121743.htm 通过控制多个inorgan的安排ic and organic layers within crystals using a novel technique, researchers have shown they can control the energy levels of electrons and holes (positive charge carriers) within a class of materials called perovskites. This tuning influences the materials' optoelectronic properties and their ability to emit light of specific energies, demonstrated by their ability to function as a source of lasers. Thu, 31 Aug 2023 12:17:43 EDT //www.koonmotors.com/releases/2023/08/230831121743.htm //www.koonmotors.com/releases/2023/08/230831121733.htm A team of researchers addressed the question: what happens to a Ga-promoted Cu surface under reaction conditions required for the synthesis of methanol? They found complex structural transformations of this bimetallic catalyst that might change the common view on the catalytically active surface structure. Thu, 31 Aug 2023 12:17:33 EDT //www.koonmotors.com/releases/2023/08/230831121733.htm //www.koonmotors.com/releases/2023/08/230830131937.htm Researchers have developed a new approach to building quantum repeaters, devices that can link quantum computers over long distances. The new system transmits low-loss signals over optical fiber using light in the telecom band, a longstanding goal in the march toward robust quantum communication networks. Wed, 30 Aug 2023 13:19:37 EDT //www.koonmotors.com/releases/2023/08/230830131937.htm //www.koonmotors.com/releases/2023/08/230830131917.htm Historically, metasurface research has concentrated on the full manipulation of light's characteristics, resulting in a diverse array of optical devices such as metalenses, metaholograms, and beam diffraction devices. Nevertheless, recent studies have shifted their focus toward integrating metasurfaces with other optical components. Wed, 30 Aug 2023 13:19:17 EDT //www.koonmotors.com/releases/2023/08/230830131917.htm //www.koonmotors.com/releases/2023/08/230830131834.htm The safety of tall buildings in the world's cities, in the face of extreme external traumas like vehicle impacts, blasts or fires, has been tested using a model developed by structural engineers -- with reassuring results. Wed, 30 Aug 2023 13:18:34 EDT //www.koonmotors.com/releases/2023/08/230830131834.htm //www.koonmotors.com/releases/2023/08/230830131742.htm Imagine a robot that can wedge itself through the cracks in rubble to search for survivors trapped in the wreckage of a collapsed building. Engineers are working toward to that goal with CLARI, short for Compliant Legged Articulated Robotic Insect. Wed, 30 Aug 2023 13:17:42 EDT //www.koonmotors.com/releases/2023/08/230830131742.htm //www.koonmotors.com/releases/2023/08/230830131611.htm While self-driving vehicles (SDVs) are being hailed as a solution for safer, more efficient roads, new research suggests some are not quite ready to embrace self-driving cars wholeheartedly -- and will need a period of gradual transition before adoption. Wed, 30 Aug 2023 13:16:11 EDT //www.koonmotors.com/releases/2023/08/230830131611.htm //www.koonmotors.com/releases/2023/08/230829130037.htm Scientists have developed a fabric-based wearable device that 'taps' a user's wrist with pressurized air, silently helping them navigate to their destination. The study demonstrated that users correctly interpreted which direction the device was telling them to go an average of 87% of the time. Since the wearable embeds most of its control system within the fabric itself, using air instead of electronics, it can be built lighter and more compact than existing designs. Tue, 29 Aug 2023 13:00:37 EDT //www.koonmotors.com/releases/2023/08/230829130037.htm //www.koonmotors.com/releases/2023/08/230829130031.htm A scientist combines attention neural networks with graph neural networks to better understand and design proteins. The approach couples the strengths of geometric deep learning with those of language models to predict existing protein properties and envision new proteins that nature has not yet devised. The model turns numbers, descriptions, tasks, and other elements into symbols for neural networks to use. Tue, 29 Aug 2023 13:00:31 EDT //www.koonmotors.com/releases/2023/08/230829130031.htm //www.koonmotors.com/releases/2023/08/230829130009.htm A research team overcomes limitations of conventional strain sensors using computer vision integrated optical sensors. Tue, 29 Aug 2023 13:00:09 EDT //www.koonmotors.com/releases/2023/08/230829130009.htm //www.koonmotors.com/releases/2023/08/230829125950.htm It has long been known that graphene has excellent electronic properties. However, it was unclear until now how stable these properties are. Are they destroyed by disturbances and additional effects, which are unavoidable in practice, or do they remain intact? Scientists have now succeeded in developing a comprehensive computer model of realistic graphene structures. It turned out that the desired effects are very stable. Even graphene pieces that are not quite perfect can be used well for technological applications. Tue, 29 Aug 2023 12:59:50 EDT //www.koonmotors.com/releases/2023/08/230829125950.htm //www.koonmotors.com/releases/2023/08/230829125828.htm A new study suggests rough surfaces inspired by the bacteria-killing spikes on insect wings may be more effective at combating drug-resistant superbugs, including fungus, than previously understood. Tue, 29 Aug 2023 12:58:28 EDT //www.koonmotors.com/releases/2023/08/230829125828.htm //www.koonmotors.com/releases/2023/08/230828223805.htm Physicists have developed a technique to precisely control the alignment of supermoiré lattices by using a set of golden rules, paving the way for the advancement of next generation moiré quantum matter. Mon, 28 Aug 2023 22:38:05 EDT //www.koonmotors.com/releases/2023/08/230828223805.htm //www.koonmotors.com/releases/2023/08/230828130148.htm 使用捕获离子quantum computer, the research team witnessed the interference pattern of a single atom caused by a 'conical intersection'. Conical intersections are known throughout chemistry and are vital to rapid photo-chemical processes such as light harvesting in human vision or photosynthesis. 星期一,2023年8月28日13:01:48美国东部时间 //www.koonmotors.com/releases/2023/08/230828130148.htm //www.koonmotors.com/releases/2023/08/230828105521.htm A team of researchers is designing novel systems to capture water vapor in the air and turn it into liquid. They have developed sponges or membranes with a large surface area that continually capture moisture from their surrounding environment. Mon, 28 Aug 2023 10:55:21 EDT //www.koonmotors.com/releases/2023/08/230828105521.htm //www.koonmotors.com/releases/2023/08/230824150114.htm Scientific exploration of the deep ocean has largely remained inaccessible to most people because of barriers to access due to infrastructure, training, and physical ability requirements for at-sea oceanographic research. Thu, 24 Aug 2023 15:01:14 EDT //www.koonmotors.com/releases/2023/08/230824150114.htm //www.koonmotors.com/releases/2023/08/230824111900.htm Scientists have developed a flexible battery as thin as a human cornea, which stores electricity when it is immersed in saline solution, and which could one day power smart contact lenses. Thu, 24 Aug 2023 11:19:00 EDT //www.koonmotors.com/releases/2023/08/230824111900.htm //www.koonmotors.com/releases/2023/08/230824111845.htm A new study has found a way to prevent lithium plating in electric vehicle batteries, which could lead to faster charging times. Thu, 24 Aug 2023 11:18:45 EDT //www.koonmotors.com/releases/2023/08/230824111845.htm //www.koonmotors.com/releases/2023/08/230824003859.htm An innovative bimanual robot displays tactile sensitivity close to human-level dexterity using AI to inform its actions. Thu, 24 Aug 2023 00:38:59 EDT //www.koonmotors.com/releases/2023/08/230824003859.htm //www.koonmotors.com/releases/2023/08/230823122630.htm A team has created an artificial quantum magnet featuring a quasiparticle made of entangled electrons, the triplon. Wed, 23 Aug 2023 12:26:30 EDT //www.koonmotors.com/releases/2023/08/230823122630.htm //www.koonmotors.com/releases/2023/08/230822151745.htm Researchers used kirigami, the art of Japanese paper cutting and folding, to develop ultrastrong, lightweight materials that have tunable mechanical properties, like stiffness and flexibility. These materials could be used in airplanes, automobiles, or spacecraft. Tue, 22 Aug 2023 15:17:45 EDT //www.koonmotors.com/releases/2023/08/230822151745.htm //www.koonmotors.com/releases/2023/08/230822111720.htm Researchers used topological data analysis to improve the predictions of physical properties of amorphous materials by machine-learning algorithms. This may allow for cheaper and faster calculations of material properties. Tue, 22 Aug 2023 11:17:20 EDT //www.koonmotors.com/releases/2023/08/230822111720.htm //www.koonmotors.com/releases/2023/08/230822111655.htm Researchers have developed an epoxy resin that can be repaired and recycled, in addition to being flame-retardant and mechanically strong. Potential applications range from coating for wooden flooring to composites in aerospace and railways. Tue, 22 Aug 2023 11:16:55 EDT //www.koonmotors.com/releases/2023/08/230822111655.htm //www.koonmotors.com/releases/2023/08/230822111637.htm A shipping container that can test passive cooling systems could help researchers and builders find carbon-free ways to keep people cool in extreme temperatures. Researchers created the 60 square-foot chamber to test passive systems that use wind towers along with water evaporation instead of electricity to cool spaces. Tue, 22 Aug 2023 11:16:37 EDT //www.koonmotors.com/releases/2023/08/230822111637.htm //www.koonmotors.com/releases/2023/08/230822111622.htm Engineers in Australia have found a way of making stronger concrete with roasted used-coffee grounds, to give the drink-additive a 'double shot' at life and reduce waste going to landfills. The team developed a technique to make concrete 30% stronger by turning waste coffee grounds into biochar, using a low-energy process without oxygen at 350 degrees Celsius. Tue, 22 Aug 2023 11:16:22 EDT //www.koonmotors.com/releases/2023/08/230822111622.htm //www.koonmotors.com/releases/2023/08/230821174251.htm Physicists use a 350-year-old theorem that explains the workings of pendulums and planets to reveal new properties of light waves. Mon, 21 Aug 2023 17:42:51 EDT //www.koonmotors.com/releases/2023/08/230821174251.htm //www.koonmotors.com/releases/2023/08/230818153123.htm New research reveals a promising breakthrough in green energy: an electrolyzer device capable of converting carbon dioxide into propane in a manner that is both scalable and economically viable. Fri, 18 Aug 2023 15:31:23 EDT //www.koonmotors.com/releases/2023/08/230818153123.htm //www.koonmotors.com/releases/2023/08/230818135157.htm Researchers took a leaf out of nature's book to develop 'eAir' -- a novel pressure sensing technology that promises to transform minimally-invasive surgeries and implantable sensors. This novel invention mirrors the lotus leaf's natural sensitivity to the extremely light touch of a water droplet, to achieve high accuracy and reliability in pressure detection. For example, during a laparoscopic or robotic surgery, graspers enhanced with eAir sensors could provide tactile feedback to help surgeons improve surgical and patient outcomes. eAir may also be used to improve the process of monitoring intracranial pressure -- the pressure within the skull that can influence brain health. Fri, 18 Aug 2023 13:51:57 EDT //www.koonmotors.com/releases/2023/08/230818135157.htm //www.koonmotors.com/releases/2023/08/230817163930.htm Materials are often considered to be one phase, but many engineering materials contain two or more phases, improving their properties and performance. These two-phase materials have inclusions, called precipitates, embedded in the microstructure. Alloys, a combination of two or more types of metals, are used in many applications, like turbines for jet engines and light-weight alloys for automotive applications, because they have very good mechanical properties due to those embedded precipitates. The average precipitate size, however, tends to increase over time-in a process called coarsening-which results in a degradation of performance for microstructures with nanoscale precipitates. Thu, 17 Aug 2023 16:39:30 EDT //www.koonmotors.com/releases/2023/08/230817163930.htm //www.koonmotors.com/releases/2023/08/230816114057.htm Researchers have found a way to control the interaction of light and quantum 'spin' in organic semiconductors, that works even at room temperature. Wed, 16 Aug 2023 11:40:57 EDT //www.koonmotors.com/releases/2023/08/230816114057.htm //www.koonmotors.com/releases/2023/08/230815151131.htm Scientists recreate and compare molecular languages at the origin of life -- opening new doors for the development of novel nanotechnologies. Tue, 15 Aug 2023 15:11:31 EDT //www.koonmotors.com/releases/2023/08/230815151131.htm //www.koonmotors.com/releases/2023/08/230815131855.htm Developing a framework for future research requires a comprehensive approach based on diagnosis, stage of recovery, and domain. Tue, 15 Aug 2023 13:18:55 EDT //www.koonmotors.com/releases/2023/08/230815131855.htm //www.koonmotors.com/releases/2023/08/230815131829.htm Graphene nanoribbons have outstanding properties that can be precisely controlled. Researchers have succeeded in attaching electrodes to individual atomically precise nanoribbons, paving the way for precise characterization of the fascinating ribbons and their possible use in quantum technology. Tue, 15 Aug 2023 13:18:29 EDT //www.koonmotors.com/releases/2023/08/230815131829.htm //www.koonmotors.com/releases/2023/08/230815131821.htm Chemists have discovered that tiny gold 'seed' particles, a key ingredient in one of the most common nanoparticle recipes, are one and the same as gold buckyballs, 32-atom spheres that are cousins of the Nobel Prize-winning carbon buckyballs discovered in 1985. Tue, 15 Aug 2023 13:18:21 EDT //www.koonmotors.com/releases/2023/08/230815131821.htm //www.koonmotors.com/releases/2023/08/230814122514.htm High-temperature flames are used to create a wide variety of materials -- but once you start a fire, it can be difficult to control how the flame interacts with the material you are trying to process. Researchers have now developed a technique that utilizes a molecule-thin protective layer to control how the flame's heat interacts with the material -- taming the fire and allowing users to finely tune the characteristics of the processed material. Mon, 14 Aug 2023 12:25:14 EDT //www.koonmotors.com/releases/2023/08/230814122514.htm //www.koonmotors.com/releases/2023/08/230814122405.htm Imagine using insects as a source of chemicals to make plastics that can biodegrade later -- with the help of that very same type of bug. That concept is closer to reality than you might expect. Researchers will describe their progress to date, including the isolation and purification of the insect-derived chemicals and their conversion into their bioplastics. Mon, 14 Aug 2023 12:24:05 EDT //www.koonmotors.com/releases/2023/08/230814122405.htm //www.koonmotors.com/releases/2023/08/230814122320.htm A team of scientists developed a new quantum-mechanics-based approach to predict metal ductility. The team demonstrated its effectiveness on refractory multi-principal-element alloys. Mon, 14 Aug 2023 12:23:20 EDT //www.koonmotors.com/releases/2023/08/230814122320.htm //www.koonmotors.com/releases/2023/08/230814122318.htm A new study finds that 'connected' vehicles, which share data with each other wirelessly, significantly improve travel time through intersections -- but automated vehicles can actually slow down travel time through intersections if they are not connected to each other. The culprit? Safety. Mon, 14 Aug 2023 12:23:18 EDT //www.koonmotors.com/releases/2023/08/230814122318.htm //www.koonmotors.com/releases/2023/08/230811143834.htm Through a series of innovative experiments, scientists found that a sheet of glass crystal just a few atoms thick could trap and carry light. Not only that, but it was surprisingly efficient and could travel relatively long distances -- up to a centimeter, which is very far in the world of light-based computing. Fri, 11 Aug 2023 14:38:34 EDT //www.koonmotors.com/releases/2023/08/230811143834.htm //www.koonmotors.com/releases/2023/08/230811143820.htm Using scaffolds of folded DNA, engineers assembled arrays of quantum rods with desirable photonic properties that could enable them to be used as highly efficient micro-LEDs for televisions or virtual reality devices. Fri, 11 Aug 2023 14:38:20 EDT //www.koonmotors.com/releases/2023/08/230811143820.htm //www.koonmotors.com/releases/2023/08/230811143817.htm Scientists pioneer a new machine learning model for corrosion-resistant alloy design. Fri, 11 Aug 2023 14:38:17 EDT //www.koonmotors.com/releases/2023/08/230811143817.htm //www.koonmotors.com/releases/2023/08/230811115524.htm Although many Americans dutifully deposit their plastic trash into the appropriate bins each week, many of those materials, including flexible films, multilayer materials and a lot of colored plastics, are not recyclable using conventional mechanical recycling methods. In the end, only about 9 percent of plastic in the United States is ever reused, often in low-value products. With a new technique, however, chemical engineers are turning low-value waste plastic into high-value products. Fri, 11 Aug 2023 11:55:24 EDT //www.koonmotors.com/releases/2023/08/230811115524.htm //www.koonmotors.com/releases/2023/08/230811115513.htm Systems in the Universe trend toward disorder, with only applied energy keeping the chaos at bay. The concept is called entropy, and examples can be found everywhere: ice melting, campfire burning, water boiling. Zentropy theory, however, adds another level to the mix. Fri, 11 Aug 2023 11:55:13 EDT //www.koonmotors.com/releases/2023/08/230811115513.htm //www.koonmotors.com/releases/2023/08/230810110356.htm 一个研究小组开发了一种新的方法来计算self-assemble a thin layer of amino acids with ordered orientation over a large area that demonstrates high piezoelectric strength, making the manufacturing of biocompatible and biodegradable medical microdevices, such as pacemaker and implantable biosensor, in the near future possible. Thu, 10 Aug 2023 11:03:56 EDT //www.koonmotors.com/releases/2023/08/230810110356.htm //www.koonmotors.com/releases/2023/08/230810110335.htm Industrial biocatalysis with enzymes is deemed to be a 'game changer' in the development of a sustainable chemical industry. Enzymes can be used to synthesize an impressive range of complex molecules, including pharmaceutical substances, under environmentally compatible conditions. Researchers have now developed a new class of materials by producing enzyme foams of tremendous stability and activity. Thu, 10 Aug 2023 11:03:35 EDT //www.koonmotors.com/releases/2023/08/230810110335.htm //www.koonmotors.com/releases/2023/08/230809130634.htm Gold (Au)-based electrocatalysts used for hydrogen production via water electrolysis exhibit high chemical stability but low hydrogen evolution reaction (HER) activity. Alloying them with nickel (Ni) can improve their HER activity. A recent study investigated the HER activity and surface properties of AuNi alloy prepared on single crystal Au surfaces, revealing the atomic structural changes and surface sites responsible for enhanced HER activity of AuNi/Au catalyst during electrolysis. Wed, 09 Aug 2023 13:06:34 EDT //www.koonmotors.com/releases/2023/08/230809130634.htm //www.koonmotors.com/releases/2023/08/230809130556.htm Researchers have developed an easy-to-build, low-cost 3D nanoprinting system that can create arbitrary 3D structures with extremely fine features. The new 3D nanoprinting technique is precise enough to print metamaterials as well as a variety of optical devices and components such as microlenses, micro-optical devices and metamaterials. Wed, 09 Aug 2023 13:05:56 EDT //www.koonmotors.com/releases/2023/08/230809130556.htm //www.koonmotors.com/releases/2023/08/230808110939.htm New research shows that electrical stimuli passed between neighboring electrodes can also affect non-neighboring electrodes. Known as non-locality, this discovery is a crucial milestone toward creating brain-like computers with minimal energy requirements. Tue, 08 Aug 2023 11:09:39 EDT //www.koonmotors.com/releases/2023/08/230808110939.htm //www.koonmotors.com/releases/2023/08/230808110922.htm As an engineering plastic having high transparency and impact resistance, polycarbonate (PC) is employed in eyeglass lenses, camera lenses, DVDs, automobile headlights and bulletproof glass. The industrial production thereof is mainly performed by means of interfacial polymerization reacting highly reactive phosgene with alcohol at the interface of water and an organic solvent. However, because phosgene is extremely toxic, a synthesis method not employing it has been actively studied from the perspective of safety. Tue, 08 Aug 2023 11:09:22 EDT //www.koonmotors.com/releases/2023/08/230808110922.htm //www.koonmotors.com/releases/2023/08/230807121907.htm A new study suggests that Cytochromes P450 (CYP450s) enzymes can sense and respond to stimuli, acting like soft robots in living systems. Mon, 07 Aug 2023 12:19:07 EDT //www.koonmotors.com/releases/2023/08/230807121907.htm //www.koonmotors.com/releases/2023/08/230804161748.htm Researchers have developed a way to make a promising, sustainable alternative to petroleum-based plastics more biodegradable. A team has made a bio-based polymer blend that's compostable in both home and industrial settings. Fri, 04 Aug 2023 16:17:48 EDT //www.koonmotors.com/releases/2023/08/230804161748.htm //www.koonmotors.com/releases/2023/08/230804140510.htm The research team at The University of Texas at Austin created a noninvasive electroencephalogram (EEG) sensor that they installed in a Meta VR headset that can be worn comfortably for long periods. The EEG measures the brain's electrical activity during the immersive VR interactions. Fri, 04 Aug 2023 14:05:10 EDT //www.koonmotors.com/releases/2023/08/230804140510.htm