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 E-Mail IMAGE: Mole fraction along the reaction time (s) calculated by the reactor simulation. The inlet gas consisted of CH4, O2, and He (as inert gas). The total pressure was set to... view more  Credit: Atsushi Ishikawa Japanese researchers have developed a simulation method to theoretically estimate the performance of heterogeneous catalyst by combining first-principles calculation (1) and kinetic calculation techniques. Up to now, simulation studies mainly focused on a single or limited number of reaction pathways, and it was difficult to estimate the efficiency of a catalytic ...

 E-Mail IMAGE: The device processing for the double-clamped GaN bridge resonator on Si substrate: (1) The as-grown GaN epitaxial film on Si substrate. Except for the AlN buffer layer, no strain removal layer is... view more  Credit: Liwen Sang Liwen Sang, independent scientist at International Center for Materials Nanoarchitectonics, National Institute for Materials Science (also JST PRESTO researcher) developed a MEMS resonator that stably operates even under high temperatures by regulating the strain caused by the heat from gallium nitride (GaN). High-precision synchronization is...

 E-Mail IMAGE: A method that can reduce the bit width of a quantum system called the "Ising model " to solve combinatorial optimization problems. view more  Credit: Waseda University Given a list of cities and the distances between each pair of cities, how do you determine the shortest route that visits each city exactly once and returns to the starting location? This famous problem is called the "traveling salesman problem" and is an example of a combinatorial optimization problem. Solving these problems using conventional computers can be very time-consuming, and special devices ca...