Abstract: A work machine comprises a joystick to control a movement of the work machine, a lock lever to control a hydraulic system of the work machine, a display to output information to an operator inside the work machine, and processing circuitry. The processing circuitry is configured to lock the hydraulic system without receiving an input from the lock lever, perform an idling stop operation of an engine of the work machine, output, on the display, an instruction for the operator to operate the joystick to restart the engine of the work machine, detect a predetermined operation of the joystick, perform an engine restart operation, under a condition that the predetermined operation of the joystick is detected, and unlock the hydraulic system without receiving the input from the lock lever.

Abstract: A data analysis method for analyzing data on a data analysis apparatus having: setting, a plurality of dimension tables each having a first identifier for identifying data to be analyzed and attributes corresponding to the first identifier; setting, a history table having a second identifier associated with each of the first identifiers of the dimension tables, and having attributes corresponding to the second identifier; setting, a relation table for storing attributes relating to the first identifier, the dimension tables having a first dimension table associated with the relation table through the attribute relating to the first identifier; associating, the first identifiers that refers to the first identifier of a first dimension table with the attributes; and processing, a query for the relation table and the first dimension table, and generating a second dimension table.

Abstract: A data management method employing the results of an analysis of data stored in a storage unit of a computer provided with a processor and a storage unit, wherein the computer generates an analysis data set by selecting data stored in the storage unit, subjects the analysis data set to prescribed data mining, extracts a model from the analysis data set, converts the model into a relational table, and associates the relational table with a dimension table and a history table that have been stored in advance in the storage unit.

Abstract: A data analysis method for analyzing data on a data analysis apparatus having: setting, a plurality of dimension tables each having a first identifier for identifying data to be analyzed and attributes corresponding to the first identifier; setting, a history table having a second identifier associated with each of the first identifiers of the dimension tables, and having attributes corresponding to the second identifier; setting, a relation table for storing attributes relating to the first identifier, the dimension tables having a first dimension table associated with the relation table through the attribute relating to the first identifier; associating, the first identifiers that refers to the first identifier of a first dimension table with the attributes; and processing, a query for the relation table and the first dimension table, and generating a second dimension table.

Abstract: A silicon film forming apparatus includes a deposition chamber (10), a silicon sputter target (2) arranged in the chamber, a hydrogen gas supply circuit (102 or 102?) supplying a hydrogen gas into the chamber, and a high-frequency power applying device (antenna 1, 1?, power source PW and others) generating inductively coupled plasma by applying high-frequency power to the gas supplied into the deposition chamber (10). Chemical sputtering is effected on the target (2) by the plasma to form a silicon film on a substrate S. A silane gas may be used. A silane gas supply circuit (101) may be provided with a gas reservoir unit (GR). The silicon film can be formed inexpensively and fast at a relatively low temperature.