Hiroshi Murakami

TL;DR: In this paper, the structure changes of graphite due to keV-energy hydrogen ion bombardment are studied by means of high resolution electron microscopy (HREM), where highly graphitized vapor grown graphite fibers of diameters around 700 nm are irradiated side on with 1 keV H + ion beam to various fluences ranging from 1 × 10 14 to 1 ×10 18 H + /cm 2.

TL;DR: In this article, a simulation and experiment on a new time-keeping method for the quasi-zenith satellite (QZS) was conducted on the ground, which indicated the feasibility of synchronization to within 10 ns between the GS and the QZS.

TL;DR: In this paper, the angular distribution of atoms sputtered from binary alloys (Cu/Ni, Co/Ni and Fe/Ni) were investigated in relation to the surface segregation phenomenon of one component of the alloys.

TL;DR: An ozone beam generation apparatus as mentioned in this paper includes an ozonizer for forming an ozone-containing gas through the ozonization of an oxygen-containing gases; a refrigerator for liquefying or solidifying only ozone present in the ozonecontaining gas; a vessel for storing the liquefied or solidified ozone; a temperature controller for contorting the temperature of the storing vessel and for gasifying the liquid or gasified ozone.

TL;DR: Three sensor-based pathplanning methods to simultaneousl y control the orientation of the main body and the arm position of a space robot using only arm motion are proposed.