liquid nitrogen
Hey, AMD: It's time for Ryzen's rebel moment
The PC industry is currently obsessed with power efficiency, long battery life, and AI. But who's going to stand up for the people who want raw performance and don't care about anything else? That performance advocate could be you, AMD. You've got what it takes. So dig out that bomber jacket, put on those aviator shades, and lean in.
A novel concept for Titan robotic exploration based on soft morphing aerial robots
Ruiz, Fernando, Arrue, Begona, Ollero, Anibal
This work introduces a novel approach for Titan exploration based on soft morphing aerial robots leveraging the use of flexible adaptive materials. The controlled deformation of the multirotor arms, actuated by a combination of a pneumatic system and a tendon mechanism, provides the explorer robot with the ability to perform full-body perching and land on rocky, irregular, or uneven terrains, thus unlocking new exploration horizons. In addition, after landing, they can be used for efficient sampling as tendon-driven continuum manipulators, with the pneumatic system drawing in the samples. The proposed arms enable the drone to cover long distances in Titan's atmosphere efficiently, by directing rotor thrust without rotating the body, reducing the aerodynamic drag. Given that the exploration concept is envisioned as a rotorcraft planetary lander, the robot's folding features enable over a 30$\%$ reduction in the hypersonic aeroshell's diameter. Building on this folding capability, the arms can morph partially in flight to navigate tight spaces. As for propulsion, the rotor design, justified through CFD simulations, utilizes a ducted fan configuration tailored for Titan's high Reynolds numbers. The rotors are integrated within the robot's deformable materials, facilitating smooth interactions with the environment. The research spotlights exploration simulations in the Gazebo environment, focusing on the Sotra-Patera cryovolcano region, a location with potential to clarify Titan's unique methane cycle and its Earth-like features. This work addresses one of the primary challenges of the concept by testing the behavior of small-scale deformable arms under conditions mimicking those of Titan. Groundbreaking experiments with liquid nitrogen at cryogenic temperatures were conducted on various materials, with Teflon (PTFE) at low infill rates (15-30%) emerging as a promising option.
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- Materials > Chemicals (0.70)
- Machinery > Industrial Machinery (0.54)
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Mice cloned from freeze-dried cells successfully breed, study shows
Endangered animal species could be saved from extinction after a new study has shown that mice cloned from freeze-dried cells are able to successfully grow into adults and become parents. Researchers in Japan have used freeze-dried somatic cells – animal cells other than sperm and egg cells – to clone mice. Cloned males and females were able to mate with other normal mice and produce their own healthy offspring. The team's method could bring animal species back to life after they've gone extinct in the wild, as long as their cells have already been'banked'. Researchers in Japan have used freeze-dried somatic cells to clone mice.
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- Asia > Japan > Honshū > Chūbu > Yamanashi Prefecture > Kofu (0.05)
I tried to beat an overclocking robot and failed
I had my first taste of this delicate hobby at last year's Computex, in which, with a lot of back and forth between pouring liquid nitrogen and torching, I managed to push Intel's 4.2GHz Core i7-7700K processor to an epic 7GHz. Still, I had it easy. Professional overclockers from G.SKILL and HWBOT had set everything up in the first place. Even the pros can find this all a little mundane. EVGA's Vince "Kingpin" Lucido and Illya "Tin" Tsemenko are well-known for their GPU-overclocking records over the years, but they, too, grew tired of the tedious "monkey work," to the point where they decided to build a rig that could overclock itself. The result is the Roboclocker, a PC that can intelligently and efficiently pump liquid nitrogen to both its CPU and GPU.
- Information Technology > Hardware (1.00)
- Information Technology > Artificial Intelligence > Robots (0.40)
The Morning After: Monday, June 5th 2017
Welcome to the new week. Apple's Worldwide Developer Conference kicks off later today. While we will be reporting live from it, we've also got thoughts on what you might see, right here. We also try overclocking processors with liquid nitrogen (and some skill), and explain that the end of SIM cards as we know them is coming. Oh, and Google Photos is now smart enough to delete your useless photos all by itself.
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- Information Technology > Artificial Intelligence (0.35)