A new material for a portable device for hemodialysis could soon be created by scientists of Tomsk State University. The team is working on changing physicochemical properties of zeolites using thermal and mechanical treatment.
Changing properties of zeolites to develop a portable device for hemodialysis.
In approaches using conventional semiconductor materials, scientists typically created qubits in the form of individual electrons. However, this caused dephesing, and the information carriers were difficult to program and read. Now, researchers from the University of Basel, Ruhr University Bochum, and the Universite de Lyon have overcome this problem by using holes — instead of electrons — to create qubits.
A new type of quantum bit | university of basel.
There’s the common notion that black holes suck in everything in the nearby vicinity by exerting a strong gravitational influence on the matter, energy, and space surrounding them. But astronomers have found that the dark matter around black holes might be a different story. Somehow dark matter resists ‘assimilation’ into a black hole.
About 23% of the Universe is made up of mysterious dark matter, invisible material only detected through its gravitational influence on its surroundings. In the early Universe clumps of dark matter are thought to have attracted gas, which then coalesced into stars that eventually assembled the galaxies we see today. In their efforts to understand galaxy formation and evolution, astronomers have spent a good deal of time attempting to simulate the build up of dark matter in these objects.
Have you wondered how Facebook might offer high-speed internet access using lasers? The company’s Connectivity Lab is happy to show you. It just published a research paper explaining laser beam technology can deliver up to 2Gbps to remote places. The trick, it says, is to use fluorescent optical fibers to collect the light instead of relying on traditional optics. Since the fibers don’t emit the same color that they’re absorbing, you can shine a brighter light at them (similar to a solar concentrator) and manage an extremely quick turnaround time of under 2 nanoseconds. Combine that with multi-stream data encoding and you get the ample bandwidth that’s normally reserved for WiFi and wired networks.
Facebook says it’s “investigating the feasibility” of shipping laser internet hardware based on this technology, but that may be more realistic than you think. The social network managed this feat using readily available materials that weren’t even meant for the purpose. It’s hoping that other organizations will craft optimized materials that are better-suited, and notes that an infrared-based system might hit speeds of up to 10Gbps. As important as Facebook’s findings might be, they’re only just the beginning.
Posted in materials, space travel | Leave a Comment on Payload designed to show that useful, high value goods can economically be produced in low earth orbit, opening the space frontier for Earth-focused manufacturing
MOFFETT FIELD, CA. Made In Space, Inc. (Made In Space) and Thorlabs, Inc. (Thorlabs) will send a microgravity-optimized, miniature fiber drawing system to the International Space Station (ISS) to manufacture high-value-to-mass ZBLAN optical fiber via a cooperative agreement with The Center for Advancement of Science In Space (CASIS). The payload, called the “Made In Space Optical Fiber Production in Microgravity Experiment” (Fiber Payload) is currently scheduled to be launched to the ISS in the first quarter of 2017. The Fiber Payload will produce test quantities of ZBLAN optical fiber in the persistent microgravity environment ISS provides, and be returned to the Earth shortly thereafter. Once returned to the Earth, the fiber will be tested and utilized. Based on the results from this initial experiment and market demand, Made In Space plans to develop and operate larger scale microgravity production facilities for ZBLAN and other microgravity enabled materials.
The Postnova TF2000 is an advanced thermal field flow fractionation (TF3) system that provides a highly efficient method of separating and characterising complex polymer samples such as natural or synthetic rubbers, starches and paints from approximately 10 kDa up to 100 MDa and more in organic and aqueous solvents.
The TF2000 uses a temperature gradient as the driving force for its separation of polymers and particles. Molecules affected by the thermal gradient undergo diffusion which enables separation by both their molar mass and chemical composition. This unique feature allows the separation of different materials having the same molar mass. The separation can be further optimized by the use of different eluents and various temperature programs.
Computadores qu nticos a temperatura ambiente.
É aí que entra a naftalina — mais especificamente, o material resultante da queima do naftaleno. A combustão gera um material à base de carbono, um pó fino que pode ser disperso em solventes como água ou etanol e depositado diretamente sobre uma pastilha de silício — depois de seco e visto ao microscópio o material se transforma em uma série de nanoesferas.
Bálint Náfrádi, da Universidade Politécnica Federal de Lausane, na Suíça, juntamente com colegas da Austrália e da Alemanha, descobriu que esse material consegue manter estáveis os spins dos elétrons em seu interior por até 175 nanossegundos — considera-se que a computação qu ntica pode se tornar prática a temperatura ambiente com qubits que sejam estáveis por mais do que 100 nanossegundos.
