Abstract: A display screen 100 of an operation panel displays: a function (130) that gives notification of the performance of a periodic inspection of a cooling system; and an operation button 131 for starting inspection of the cooling system. During an easy inspection, a compressor 9a of the cooling system 9 is activated when a rotor 5 is not installed, it is determined whether the temperature detected by a temperature sensor 12 falls to a prescribed temperature (e.g., ?3° C.) within a prescribed period of time (e.g., within 10 minutes) from activation, and the cooling system is determined to be normal if the detected temperature falls to the prescribed temperature and abnormal if not. The results of the determination are stored at a storage unit of the centrifuge, the timing 132 of the next inspection is displayed on the display screen 100, and it is possible to reference a past inspection history.

Abstract: In view of the demand to replace wood pulp to preserve forests which is brought about by the recent trend to preserve natural resources from the terrestrial warming or the environmental pollution, this disclosure provides a yarn using cellulose-based filament yarn made from bamboo. This is achieved by a fiber yarn which is a yarn containing a filament of cellulose-based fiber made from a bamboo having a thickness of about 10 to about 600 dtex and number of twist of 0 to about 3,000 T/M.

Abstract: In view of the demand to replace wood pulp to preserve forests which is brought about by the recent trend to preserve natural resources from the terrestrial warming or the environmental pollution, this disclosure provides a yarn using cellulose-based filament yarn made from bamboo. This is achieved by a fiber yarn which is a yarn containing a filament of cellulose-based fiber made from a bamboo having a thickness of about 10 to about 600 dtex and number of twist of 0 to about 3,000 T/M.