Abstract: A fan according to one embodiment of the present disclosure includes a casing, an impeller including a hub portion, rotor blades, and a cylindrical portion, and fixed blades, the casing including an increasing diameter portion having an inner circumferential surface increasing in inner diameter from an air inlet side toward an air outlet side, a maximum outer diameter of the rotor blades being larger than a minimum inner diameter of the increasing diameter portion, a position of the minimum inner diameter of the increasing diameter portion being located, in an axial direction, at the air inlet side of a position of the maximum outer diameter of the rotor blades, the rotor blades projecting, in the axial direction, from the hub portion toward an air inlet, and a length of the fixed blades in the axial direction being longer than a width of the fixed blades along a radial direction.

Abstract: A fan according to one embodiment of the present disclosure includes a casing, an impeller including a hub portion, rotor blades, and a cylindrical portion, and fixed blades, the casing including an increasing diameter portion having an inner circumferential surface increasing in inner diameter from an air inlet side toward an air outlet side, a maximum outer diameter of the rotor blades being larger than a minimum inner diameter of the increasing diameter portion, a position of the minimum inner diameter of the increasing diameter portion being located, in an axial direction, at the air inlet side of a position of the maximum outer diameter of the rotor blades, the rotor blades projecting, in the axial direction, from the hub portion toward an air inlet, and a length of the fixed blades in the axial direction being longer than a width of the fixed blades along a radial direction.

Abstract: An electric pump includes a pump, a motor configured to drive the pump, a motor drive unit having a switching element and configured to drive the motor with electric power output from the switching element, and a control unit configured to output a pulse width modulation (PWM) signal for driving the switching element to the motor drive unit. The PWM signal output from the control unit, is used for monitoring a state of the motor. When the motor stops abnormally, the control unit sets a frequency of the PWM signal for use in monitoring the state of the motor to a frequency outside of a frequency band which is used when the motor is normal.

Abstract: The present invention provides a binder for positive electrode of lithium ion battery which is excellent in workability at the time of producing a positive electrode, is excellent in charge and discharge characteristics such as cycle characteristics and rate characteristics, and enables to possible to produce a positive electrode having an extended cycle life, as well as the present invention provides a slurry for forming positive electrode mixture layer of lithium ion battery, a positive electrode for lithium ion battery, and a lithium ion battery, using the same.

Abstract: An electric pump includes a pump, a motor configured to drive the pump, a motor drive unit having a switching element and configured to drive the motor with electric power output from the switching element, and a control unit configured to output a pulse width modulation (PWM) signal for driving the switching element to the motor drive unit. The PWM signal output from the control unit, is used for monitoring a state of the motor. When the motor stops abnormally, the control unit sets a frequency of the PWM signal for use in monitoring the state of the motor to a frequency outside of a frequency band which is used when the motor is normal.

Abstract: An electrolyte solution for a potassium ion battery or a potassium ion capacitor, the electrolyte solution comprising at least one potassium salt compound selected from the group consisting of potassium bis(trifluoromethanesulfonyl)amide and potassium bis(fluorosulfonyl)amide and at least one solvent selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, pentaethylene glycol dimethyl ether, ethylene carbonate, and propylene carbonate, in which a concentration of the potassium salt compound in the electrolyte solution is from 1.5 mol/kg to 12.0 mol/kg.

Abstract: An electrolyte solution for a potassium ion battery or a potassium ion capacitor, the electrolyte solution comprising at least one potassium salt compound selected from the group consisting of potassium bis(trifluoromethanesulfonyl)amide and potassium bis(fluorosulfonyl)amide and at least one solvent selected from the group consisting of ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, pentaethylene glycol dimethyl ether, ethylene carbonate, and propylene carbonate, in which a concentration of the potassium salt compound in the electrolyte solution is from 1.5 mol/kg to 12.0 mol/kg.

Abstract: Provided is the positive electrode active material for a potassium ion battery according to the embodiment comprises a compound represented by Formula (1), in which M represents at least one element selected from the group consisting of V, Fe, Co, Ni, and Mn, and x represents a number from 0 to 1; and is a positive electrode for a potassium ion battery comprising the positive electrode active material for a potassium ion battery according to the embodiment, or a potassium ion battery comprising the positive electrode for a potassium ion battery. KMOxPO4F1-x??[Formula (1)].

Abstract: According to an embodiment of the invention, a descaling system is provided that includes multiple descaling headers, a common pipe, a connection pipe, a pump, a drive device, a branch pipe, a valve, and a control device. The multiple descaling headers are provided in a rolling line. The common pipe is connected to each of the multiple descaling headers. The connection pipe is connected to the common pipe. The pump is connected to the connection pipe and supplies high pressure water to each of the multiple descaling headers via the connection pipe and the common pipe. The drive device controls the driving of the pump. The branch pipe is connected to the connection pipe. The valve is provided in the branch pipe and controls the opening/closing of the branch pipe. The control device includes a data collector, a pressure calculator, a pump controller, and a protector.

Abstract: A power management device managing electric power in a load facility group including plural load facilities includes: a detector that detects an instantaneous value of power consumption for each of the plural load facilities; a forecaster that forecasts an instantaneous value of power consumption for each of the plural load facilities; an operation unit that obtains a difference between the value detected by the detector and the value forecasted by the forecaster, for each of the plural load facilities; a controller that outputs a storage command or a discharge command based on whether the difference obtained by the operation unit is positive or negative; and a storage/discharge device that stores/discharges electricity based on the storage command or the discharge command output by the controller. The power management device can respond to instantaneous and steep power consumption amount change in a load facility to enable efficient use of power.

Abstract: The present invention relates to an active cathode material of the general formula (I): MxNia-yM1bM2cM3yO2, in which the variables are each defined as follows: M is an alkali metal, M1 is V, Cr, Mn, Fe, Co or a mixture thereof, M2 is Ge, Sn, Ti, Zr or a mixture thereof, M3 is Mg, Zn, Cu or a mixture thereof, x is in the range from 0.5 to 0.8, a is in the range from 0.1 to 0.4, b is in the range from 0.05 to 0.7, c is in the range from 0.02 to 0.6, y is in the range from 0.05 to 0.2 wherein a+b+c=1. The present invention further relates to an electrode material comprising said active cathode material, to electrodes produced from or using said electrode material and to a rechargeable electrochemical cell comprising at least one electrode. The present invention further relates to a process for preparing said active cathode material of the general formula (I).

Abstract: Provided are: a potassium ion secondary battery which is not susceptible to deterioration of charge/discharge capacity even if charging and discharging are repeated, and which has a long service life as a secondary battery; a potassium ion capacitor; a negative electrode for the potassium ion secondary battery; and a negative electrode for the potassium ion capacitor. A negative electrode for potassium ion secondary batteries and a negative electrode for potassium ion capacitors, each of which contains a carbon material that is capable of absorbing and desorbing potassium and a binder that contains a polycarboxylic acid and/or a salt thereof. A potassium ion secondary battery which is provided with the negative electrode or the capacitor. A binder for negative electrodes of potassium ion secondary batteries or negative electrodes of potassium ion capacitors, which contains a polycarboxylic acid and/or a salt thereof.

Abstract: A sodium transition metal based cathode material for a rechargeable sodium battery, having a P2 orthorhombic layered bronze crystal structure with space group Cmcm, and having a composition NaxMyMn1-yLiy?AzO2 with 0.60<x<0.95, wherein M consists of either one or more elements of the group consisting of Cu, Zn and Ni; A consisting of either one or more elements of the group consisting of Mg, Ti, Fe, Cr and Co, with 0<y<0.20, 0?z<0.2, 0?y?<0.33, and z+y?>0.

Abstract: Provided is the positive electrode active material for a potassium ion battery according to the embodiment comprises a compound represented by Formula (1), in which M represents at least one element selected from the group consisting of V, Fe, Co, Ni, and Mn, and x represents a number from 0 to 1; and is a positive electrode for a potassium ion battery comprising the positive electrode active material for a potassium ion battery according to the embodiment, or a potassium ion battery comprising the positive electrode for a potassium ion battery.

Abstract: A liquefied gas production facility includes a plurality of liquefied gas producers which produce liquefied gas by removing an unnecessary substance and liquefying feed gas containing methane as a main component.

Abstract: A sodium transition metal based cathode material for a rechargeable sodium battery, having a P2 orthorhombic layered bronze crystal structure with space group Cmcm, and having a composition NaxMyMn1-yLiy?AzO2 with 0.60<x<0.95, wherein M consists of either one or more elements of the group consisting of Cu, Zn and Ni; A consisting of either one or more elements of the group consisting of Mg, Ti, Fe, Cr and Co, with 0<y<0.20, 0?z<0.2, 0<y?<0.33, and z+y?>0.

Abstract: According to an embodiment of the invention, a descaling system is provided that includes multiple descaling headers, a common pipe, a connection pipe, a pump, a drive device, a branch pipe, a valve, and a control device. The multiple descaling headers are provided in a rolling line. The common pipe is connected to each of the multiple descaling headers. The connection pipe is connected to the common pipe. The pump is connected to the connection pipe and supplies high pressure water to each of the multiple descaling headers via the connection pipe and the common pipe. The drive device controls the driving of the pump. The branch pipe is connected to the connection pipe. The valve is provided in the branch pipe and controls the opening/closing of the branch pipe. The control device includes a data collector, a pressure calculator, a pump controller, and a protector.

Abstract: Provided are: a potassium ion secondary battery which is not susceptible to deterioration of charge/discharge capacity even if charging and discharging are repeated, and which has a long service life as a secondary battery; a potassium ion capacitor; a negative electrode for the potassium ion secondary battery; and a negative electrode for the potassium ion capacitor. A negative electrode for potassium ion secondary batteries and a negative electrode for potassium ion capacitors, each of which contains a carbon material that is capable of absorbing and desorbing potassium and a binder that contains a polycarboxylic acid and/or a salt thereof. A potassium ion secondary battery which is provided with the negative electrode or the capacitor. A binder for negative electrodes of potassium ion secondary batteries or negative electrodes of potassium ion capacitors, which contains a polycarboxylic acid and/or a salt thereof.

Abstract: A weather predicting method includes: selecting, from weather information related to areas and times and including temperature data, weather information sets related to multiple times over a fixed period concerning a first area containing a location where the air utilizing apparatus is placed; by solving, with selected weather information sets as input data, differential equations expressing the weather information based on analysis models for conducting weather simulations, generating a first narrow area weather information sets related to smaller second areas disposed within the first area; selecting a second narrow-area weather information set concerning a second area containing the location of the air utilizing apparatus from among generated first narrow-area weather information sets; and generating a temperature cumulative frequency distribution or a temperature exceedance probability distribution during the fixed period by using temperature data contained in the second narrow-area weather information se