Category Technology/Electronics

Al Molnar, holding a test board with the two-way transceiver chip mounted in the center, is shown with graduate student Hazal Yüksel in Molnar’s lab. Yüksel is co-lead author of the latest paper from the Molnar lab, published earlier this year in the Journal of Solid-State Circuits. Credit: Cornell University

Cornell engineers have devised a method for transmitting and receiving radio signals on a single chip, which could ultimately help change the way wireless communication is done. Separating the send and receive bands is difficult enough, but the problem is compounded by the ever-increasing number of bands in the latest devices, which handle everything wireless technology has to offer...

Visual comparison of printed surface before smoothing (1), with smoothing by conventional methods (2) and by 3D-CMF (3). CMF result (a-3) is more uniform than polishing (a-2), and CMF (b-3) accurately preserves more desired surface detail than solvent vapor method (b-2).
Credit: Waseda University

New process combines better quality with low cost and less waste, giant step towards home 3D printing. Waseda University researchers have developed a process to dramatically improve the quality of 3D printed resin products. The process combines greatly improved surface texture and higher structural rigidity with lower cost, less complexity, safer use of solvent chemicals and elimination of troublesome waste dust.

Kensuke Takagishi and Professor Shinjiro Umezu, both of the Waseda University Faculty ...

A holmium (Ho) and a iron (Fe) atom placed on a MgO substrate are the components for the world’s smallest memory device. Ho is used as a storage medium and Fe as a sensor were. The magnetism of the holmium atom can be changed or read by flowing current through the STM tip.

Storing 1 bit in 1 atom is possible: The extraordinary end of Moore’s law. One bit of digital information can now be successfully stored in an individual atom, according to a study just published in Nature. Current commercially-available magnetic memory devices require approximately 1 million atoms to do the same...

Well-Defined Nanographene–Rhenium Complex as an Efficient Electrocatalyst and Photocatalyst for Selective CO2 Reduction

An international team has achieved a new milestone in the quest to recycle CO2 in Earth’s atmosphere into carbon-neutral fuels and others materials. The chemists have engineered a molecule that uses light or electricity to convert the greenhouse gas CO2 into CO more efficiently than any other method of “carbon reduction.” “If you can create an efficient enough molecule for this reaction, it will produce energy that is free and storable in the form of fuels,” said Li, associate professor in the IU Bloomington College of Arts and Sciences’ Department of Chemistry.

Burning fuel – such as carbon monoxide – produces carbon dioxide and releases energy...