An electrical joint assembly for connecting a plurality of conductors includes a busbar hub and a plurality of limiter modules. In response to application of electric current, and termination of application of electric current, the wire correspondingly contracts and extends in length causing the opening and permitting the closing of the air removal passageway by the valve. Every time the air-fuel ratio sensor output is acquired, the value of the cylinder air amount at the point earlier, by a transport delay time, than the point of the acquisition is determined based on the time-series data, and a corresponding determination value corresponding thereto is calculated. The modified database protocol packet is then provided to a database server, where database server subsequently accessed by the EDSM system to retrieve the database query and the first HMAC value. The coating is applied by means of a modified PVD process in that, for creating the carbonitride layer, carbon and nitrogen in the form of gas are introduced into the reaction chamber, and one or several ion sources are continued to be operated to form plasma.