Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.

Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.

Abstract: The present invention provides a refrigerating machine oil comprising: an ester of a polyhydric alcohol and a fatty acid as a base oil; and an ether compound of a polyhydric alcohol, the refrigerating machine oil being used with an unsaturated hydrofluorocarbon refrigerant.

Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.

Abstract: Disclosed is a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil comprising an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound, and a phosphorous compound, and at least one refrigerant selected from 1, 1, 1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene, the fatty acid comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the carbodiimide compound and the phosphorus compound satisfy the conditions represented by the formula (1): 0.11 ? ( N C M C · W C ) ( N P M P · W P ) ? 4.

Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.

Abstract: The present invention provides a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil, and the refrigerating machine oil being used with a trifluoroethylene refrigerant.

Abstract: Disclosed is a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil comprising an ester of a polyhydric alcohol and a fatty acid, a carbodiimide compound, and a phosphorous compound, and at least one refrigerant selected from 1, 1, 1,2-tetrafluoroethane and 2,3,3,3-tetrafluoropropene, the fatty acid comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the carbodiimide compound and the phosphorus compound satisfy the conditions represented by the formula (1): 0.11 ? ( N C M C · W C ) ( N P M P · W P ) ? 4.

Abstract: The present invention provides a refrigerating machine oil composition comprising an ester-based base oil, an epoxy compound, and a carbodiimide compound, the refrigerating machine oil composition being used with a refrigerant containing a fluoropropene in a refrigerating machine comprising a member containing polyethylene terephthalate and/or a member containing hydrogenated acrylonitrile butadiene rubber.

Abstract: The refrigerating machine oil according to the present invention comprises a polyalkylene glycol represented by the following formula (1): R1—(OR3)n—OR2??(1) [R1 and R2 may be the same or different from each other and each represent a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, or an acyl group having from 2 to 5 carbon atoms, R3 represents an alkylene group having from 2 to 4 carbon atoms, n represents an integer such that a number average molecular weight of the polyalkylene glycol represented by the formula (1) is from 1000 to 2500] the polyalkylene glycol having a ratio of the weight average molecular weight Mw to the number average molecular weight Mn, Mw/Mn, of from 1.00 to 1.15, the refrigerating machine oil being used with a mildly flammable hydrofluorocarbon refrigerant.

Abstract: There is provided a center server and a store terminal to enhance the targeting accuracy in providing services. The center server gives a unique ID to a member application, sends it to a particular mobile information terminal and manages it as authentication information about a member who is the user of the mobile information terminal. In response to purchases of a particular article by the member, the store terminal inputs the ID from the mobile information terminal and inputs purchase information about the article the member purchases. The center server then acquires attribute information about a member identified by the ID. Then, by checking the purchase information, the attribute information and service information set in association with attribute information about the member and kinds of articles and stored in particular storage means, information about a service to be provided for the member is identified.

Abstract: To enhance the targeting accuracy in providing services such as provision of samples for members by performing management of member information and authentication while securing personal anonymity. There is provided a center server and a store terminal. The center server gives a unique ID to a member application, sends it to a particular mobile information terminal and manages it as authentication information about a member who is the user of the mobile information terminal. In response to purchases of a particular article by the member, the store terminal inputs the ID from the mobile information terminal and inputs purchase information about the article the member purchases. The center server then acquires attribute information about a member identified by the ID.

Abstract: A package-on-package includes a semiconductor package, and a coil provided at the semiconductor package. The semiconductor package includes a bottom face, and a solder ball protruded from the bottom face. An axis of the coil is inclined with respect to the normal line of the bottom face.

Abstract: To enhance the targeting accuracy in providing services such as provision of samples for members by performing management of member information and authentication while securing personal anonymity. There is provided a center server and a store terminal. The center server gives a unique ID to a member application, sends it to a particular mobile information terminal and manages it as authentication information about a member who is the user of the mobile information terminal. In response to purchases of a particular article by the member, the store terminal inputs the ID from the mobile information terminal and inputs purchase information about the article the member purchases. The center server then acquires attribute information about a member identified by the ID.

Abstract: Data to support a determination as to whether or not a project can be executed, etc., is provided on the basis of a cost estimation value of project deliverables. Regarding a risk event parameter group which is a collection of risk event parameters indicating a degree of estimation risk for each of a plurality of estimation risk events, the similarity between risk event parameter groups of a plurality of past projects and a risk target parameter group of a target project is obtained (S41 to S43), the top N past projects in terms of the similarity to the target project is extracted from the plurality of past projects (S43), a cost deviation of a cost estimation value of the target project is obtained from the cost estimation value and the actual value of each of the N past projects (S45, S46), cost fluctuation information is created on the basis of the cost deviation of the target project (S47), and the cost fluctuation information is displayed.

Abstract: A package-on-package includes a semiconductor package, and a coil provided at the semiconductor package. The semiconductor package includes a bottom face, and a solder ball protruded from the bottom face. An axis of the coil is inclined with respect to the normal line of the bottom face.

Abstract: A semiconductor device capable of reducing power consumption is provided. When a power to an internal circuit is interrupted, e.g., in a standby mode, a switch is turned off, and a pseudo-ground line is charged with a leak current of the internal circuit to raise a potential thereof. After the switch is turned off, a switch connected to a charge supply unit is turned on while the potential is rising, so that the charge supply unit is electrically coupled to the pseudo-ground line. Thereby, charges accumulated in the charge supply unit are discharged to the pseudo-ground line. The switch is turned off to decouple electrically the charge supply unit from the pseudo-ground line. Thereby, when the power supply is interrupted, a part of the charges for raising the potential of the pseudo-ground line is supplemented with the charges of the charge supply unit.

Abstract: A semiconductor device capable of reducing power consumption is provided. When a power to an internal circuit is interrupted, e.g., in a standby mode, a switch is turned off, and a pseudo-ground line is charged with a leak current of the internal circuit to raise a potential thereof. After the switch is turned off, a switch connected to a charge supply unit is turned on while the potential is rising, so that the charge supply unit is electrically coupled to the pseudo-ground line. Thereby, charges accumulated in the charge supply unit are discharged to the pseudo-ground line. The switch is turned off to decouple electrically the charge supply unit from the pseudo-ground line. Thereby, when the power supply is interrupted, a part of the charges for raising the potential of the pseudo-ground line is supplemented with the charges of the charge supply unit.

Abstract: A voltage supply control circuit is arranged between a true ground voltage and a pseudo ground line. In an active mode, first and second control signals are at the “H” and “L” levels, respectively. In response to this, a first switch is turned on so that a first node is electrically coupled to a power supply voltage, and attains the “H” level. Further, a second switch is turned on to couple electrically the ground voltage to a second node. In a standby mode, the first and second control signals are at the “L” and “H” levels, respectively. In response to this, a third switch is turned on to couple electrically the first and second nodes together. Since the power supply voltage was electrically coupled to the first node according to the turn-on of the first switch in the active mode, the path of the control signal including the first node to the switch has accumulated charged charges.

Abstract: A voltage supply control circuit is arranged between a true ground voltage and a pseudo ground line. In an active mode, first and second control signals are at the “H” and “L” levels, respectively. In response to this, a first switch is turned on so that a first node is electrically coupled to a power supply voltage, and attains the “H” level. Further, a second switch is turned on to couple electrically the ground voltage to a second node. In a standby mode, the first and second control signals are at the “L” and “H” levels, respectively. In response to this, a third switch is turned on to couple electrically the first and second nodes together. Since the power supply voltage was electrically coupled to the first node according to the turn-on of the first switch in the active mode, the path of the control signal including the first node to the switch has accumulated charged charges.