Abstract: A coating consists essentially of one or more selected from the group of nitrides of one or more first metals of titanium, zirconium and hafnium beyond 0 at % but less than 100 at % and a balance of silicon, and nitrides of one or more second metals of vanadium, niobium and tantalum.

Abstract: When a compressor vane or blade for an engine is used in an environment containing abundant foreign substances, deposits originated from the foreign substances are likely to deposit on surfaces of the vane or blade. The compressor vane or blade according to the present disclosure has a base body of the compressor vane or blade; and a coating covering the base body, which consists essentially of one or more selected from the group of molybdenum disulfide and tungsten disulfide.

Abstract: When a compressor vane or blade for an engine is used in an environment containing abundant foreign substances, deposits originated from the foreign substances are likely to deposit on surfaces of the vane or blade. The compressor vane or blade according to the present disclosure has a base body of the compressor vane or blade; and a coating covering the base body, which consists essentially of one or more selected from the group of molybdenum disulfide and tungsten disulfide.

Abstract: A coating consists essentially of one or more selected from the group of nitrides of one or more first metals of titanium, zirconium and hafnium beyond 0 at % but less than 100 at % and a balance of silicon, and nitrides of one or more second metals of vanadium, niobium and tantalum.

Abstract: A mobile communication scheme capable of notifying a communication regulation information efficiently by using radio interfaces from the macro-cell system to the micro-cell system, without requiring communications through a fixed communication network, so as to be able to regulate the service through the micro-cell system efficiently in coordination with the regulation of the service through the macro-cell system. In this mobile communication scheme, the communication regulation information is notified from the macro-cell system to the mobile station while the mobile station is located within the macro-cell system, and stored in a memory of the mobile station.

Abstract: A mobile communication system having a high precision frequency base station device with a high precision frequency generator, and the other low precision frequency base station device with a low precision frequency generator which receives transmission waves from the high precision frequency base station device using a transmission frequency in a prescribed frequency precision, and carries out transmission and reception by controlling transmission and reception frequencies of own station in accordance with the frequency precision of the received transmission waves.

Abstract: Each base station measures the field intensity of downlink rediowaves from other base stations, then analyzes the received rediowaves above a predetermined field intensity value and decides whether they are rediowaves used in the same mobile radio communication system. The base station creates peripheral base station information based on information about the rediowaves decided as being used in the same mobile radio communication system.

Abstract: A mobile station measures the field intensity and bit error rate of a downlink radio wave from a base station at each measurement timing and reports the measured results to the base station. Upon receiving the measured results from each mobile station, the base station compares the measured results with a reference characteristic to determine if they are abnormal or not. The base station acquires the determined results of the measured results for a fixed period of time and statistically processes them to judge the state of interference.