Abstract: There is provided an information processing apparatus for communicating with a database storing information on errors which have occurred in an image forming apparatus. The information processing apparatus includes a controller configured to acquire, from the database, information on an error to be analyzed and information on a related error which occurred before an occurrence of the error to be analyzed, and determine a causal part being a cause of the error to be analyzed, based on error timing information related to a timing of occurrence of the error to be analyzed and error timing information related to a timing of occurrence of the related error.

Abstract: An aqueous cleaning liquid including hydrofluoric acid and tetradecylphosphonic acid, and a method of cleaning an electronic device, contacting the electronic device with the aqueous cleaning liquid.

Abstract: A method for manufacturing a ruthenium wiring including (i) treating a metal surface including ruthenium using a first chemical solution including a compound having a functional group capable of coordinating to a ruthenium atom, and (ii) carrying out an etching treatment on the metal surface including ruthenium treated with the first chemical solution, using a second chemical solution.

Abstract: A chemical solution used for cleaning or etching a ruthenium-containing layer, which can obtain the ruthenium-containing layer having a reduced surface roughness while maintaining a good etching rate against the ruthenium, and a method for fabricating ruthenium wiring. The chemical solution includes orthoperiodic acid, a base component, and any one of a nitrogen-containing heterocyclic compound, an organic phosphonic acid, and an organic carboxylic acid.

Abstract: A method for manufacturing a ruthenium wiring including (i) treating a metal surface including ruthenium using a first chemical solution including a compound having a functional group capable of coordinating to a ruthenium atom, and (ii) carrying out an etching treatment on the metal surface including ruthenium treated with the first chemical solution, using a second chemical solution.

Abstract: In application of a green-house effect, under such a concept as to collect solar energy passively into the house and to exhaust moist air passively from the house, an all weather passive-type solar Ogako drying house which is available for all day through a year was made up improving an agricultural vinyl-house in which Ogako is dried continuously during carriage on the belt conveyors due to solar energy and auxiliary heat, and then moist air yielded when drying Ogako is exhausted through an insulated cylinder. In this case, Ogako means sawdust or tipped small particles of wood which is raw material in order to produce a woody pellet fuel.

Abstract: A fully passive-type solar lumber drying house classified into two models, one is an east-west model configured as a half Quonset hut that lumber's axis loaded is parallel to the east-west direction, and another is a north-south model configured as a Quonset hut that lumber's axis loaded is parallel to the north-south direction and the house is fully surrounded by a triple transparent film and a carbon fiber sheet and is available to be used through all year in which stacked lumber can be dried due to solar energy being assisted by auxiliary heat for one or two weeks under leaving the dry process controlled automatically, and besides moist air inside the house is exhausted through an insulated cylinder.

Abstract: A cooling device has a closed circulating channel for circulating coolant, and in the channel, a radiator and a contact-heat-exchanger type centrifugal pump are provided. A heat-producing electronic component contacts with the centrifugal pump, and the coolant in the pump collects the heat off the component due to the heat exchanging function. Then the heat is dissipated from the radiator. The pump includes a pump-casing made of highly heat conductive material and an impeller. The pump casing has a base wall and a cover wall opposite the base wall. The base wall has an outer wall face constituting a heat-receiving face, and an inner wall face facing the impeller. The impeller is disposed in a pump room defined between the base wall and cover wall of the casing. A sucking channel is provided between the heat-receiving face and an inner wall face of the pump room. This inner wall has a recess where protrusions extending toward the impeller or dimples are provided.

Abstract: In application of a green-house effect, under such a concept as to collect solar energy passively into the house and to exhaust moist air passively from the house, an all weather passive-type solar Ogako drying house H which is available for all day through a year was made up improving an agricultural vinyl-house in which Ogako is dried continuously during carriage on the belt conveyors 4, 5 due to solar energy and auxiliary heat, and then moist air yielded when drying Ogako is exhausted through an insulated cylinder 13. In this case, Ogako means sawdust or tipped small particles of wood which is raw material in order to produce a woody pellet fuel.

Abstract: In application of the green-house effect, under such a concept as to collect passively solar energy into the house and to exhaust passively moist air from the house H, this invention is related to a fully passive-type solar lumber drying house H which is fully surrounded by a triple transparent film 1 and a carbon fiber sheet 1? and is available to be used through all year in which the stacked lumber 15 can be dried due to solar energy being assisted by auxiliary heat for one or two weeks under leaving the dry process controlled automatically, and besides moist air inside the house H is exhausted through an insulated cylinder 10. The fully passive-type solar lumber drying house H in this invention is classified into two models, one of which is an east-west model (A) like a half Quonset hut that lumber's axis loaded is parallel to the east-west direction, and another is a north-south model (B) like a Quonset hut that lumber's axis loaded is parallel to the north-south direction.

Abstract: A cooling device includes a heat-radiating device and a centrifugal pump provided in a closed circulation passage for circulating refrigerant. The centrifugal pump contacts and absorbs heat from heat-generating electronic parts by heat exchange of the refrigerant therein to radiate the heat via the heat-radiating device. The centrifugal pump includes a lower casing that comes into contact with the heatgenerating electronic parts, an upper casing disposed to face the lower casing to form a pump chamber, and an impeller sandwiched between the upper casing and the lower casing. The lower casing includes a recessed conical surface facing the impeller, at least one protrusion provided in a center portion of the recessed conical surface and a contact face with which the heat-generating electronic parts come into contact formed directly below the protrusion on an opposite side of the recessed conical surface.

Abstract: A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material, and an impeller accommodated in the pump chamber, and a radiator provided at the circulating passage and being operable to release heat from the coolant. The first case has a surface arranged to contact the heat-generating component. The second case forms a pump chamber between the first case and the second case. The pump chamber stores the coolant therein. The impeller includes open-type vanes arranged to pressurize the coolant as to have the coolant flow through the circulating passage. The cooling device has a high cooling efficiency as well as a high operating efficiency of the motor while having a simple construction and a small overall size and a small thickness.

Abstract: A cooling device including a heat-radiating device and a centrifugal pump provided in a closed circulation passage for circulating refrigerant. The centrifugal pump comes into contact with heat-generating electronic parts to absorb heat from the heat-generating electronic parts by the heat exchange of the refrigerant therein to radiate the heat via the heat-radiating device. A pump chamber of the centrifugal pump is defined by a combination of a plurality of casings, that is, an upper casing, a ring-shaped sealing member and a lower casing. A contacting surface that comes in a surface contact with the heat-generating electronic parts, and a recessed conical surface that faces an impeller are formed in the lower casing of the casings that comes into a direct contact with the heat-generating electronic parts. A plurality of heat-radiating pins protruding toward the impeller is provided in a center portion of the recessed conical surface.

Abstract: A liquid cooling device according to the invention is based upon a liquid cooling device for a computer in which a cooler, a radiator, a pump and a reserve tank for reserving a refrigerant are provided to a closed circulating passage for circulating the refrigerant, the pump operating at a predetermined revolution circulates the refrigerant, the cooler removes heat from CPU using the refrigerant and the radiator radiates the removed heat, and is mainly characterized in that judgment means that judges that the operation is to be continued in case the revolution of the pump is equal to or smaller than the set revolution and judges that the quantity of the refrigerant is insufficient in case the revolution of the pump exceeds the set revolution is provided.

Abstract: A cooling device for cooling a heat-generating component includes a circulating passage arranged to have coolant circulate therein, a centrifugal pump including a first case made of metallic material, a second case made of resin material, and an impeller accommodated in the pump chamber, and a radiator provided at the circulating passage and being operable to release heat from the coolant. The first case has a surface arranged to contact the heat-generating component. The second case forms a pump chamber between the first case and the second case. The pump chamber stores the coolant therein. The impeller includes open-type vanes arranged to pressurize the coolant as to have the coolant flow through the circulating passage. The cooling device has a high cooling efficiency as well as a high operating efficiency of the motor while having a simple construction and a small overall size and a small thickness.

Abstract: A pump for circulating a coolant has a housing thereof in direct thermal connection with an electronic component. This provides both the improvement of cooling efficiency of a cooling device and the realization of a compact, slim design of the device.

Abstract: A cooling device has a closed circulating channel for circulating coolant, and in the channel, a radiator and a centrifugal pump of contact heat-exchanger model are provided. A heat-producing electronic component contacts with the centrifugal pump, and the coolant in the pump collects the heat off the component due to the heat exchanging function. Then the heat is dissipated from the radiator. The pump includes a pump-casing made of highly heat conductive material and an impeller. The pump casing has a heat-receiving plane formed on a face along a pump room therein, and a sucking channel is prepared between the heat-receiving plane and an inner wall of the pump room. This inner wall has a recess where protrusions extending toward the impeller or dimples are provided. The foregoing cooling device has a simple structure and can be downsized and slimmed while its cooling efficiency is improved.