Abstract: When an online storage service is used to expand a storage capacity of a file server, an amount of communication in synchronization processing and an amount of data retained on the online storage service are reduced to save an amount of charge. In a kernel module provided with a storage area on the online storage service, files are divided into block files and managed, and blocks overlapping with an already registered and saved block file group are not uploaded, but only configuration information of the files is changed. A mechanism is adopted, in which DBs for managing meta information and elimination of duplication are divided and managed, and only updated sections are appropriately uploaded.

Abstract: When an online storage service is used to expand a storage capacity of a file server, an amount of communication in synchronization processing and an amount of data retained on the online storage service are reduced to save an amount of charge. In a kernel module provided with a storage area on the online storage service, files are divided into block files and managed, and blocks overlapping with an already registered and saved block file group are not uploaded, but only configuration information of the files is changed. A mechanism is adopted, in which DBs for managing meta information and elimination of duplication are divided and managed, and only updated sections are appropriately uploaded.

Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).

Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).

Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).

Abstract: Disclosed is a production method of polypropylene having high MFR value and excellent product qualities with high productivity. The method enables to produce a propylene polymer by a gas phase process where the reaction heat is removed mainly by the heat of vaporization of liquefied propylene. The method is characterized by using a solid catalyst component (A) which is prepared by contacting components (A1), (A2) and (A3) shown below. Further disclosed are: a propylene polymer produced by the method; a propylene polymer composition; and a molded body of the composition. Component (A1): a solid component containing titanium, magnesium and a halogen as essential components. Component (A2): a vinyl silane compound. Component (A3): an organosilicon compound having an alkoxy group (A3a) and/or a compound having at least two ether bonds (A3b).

Abstract: A catalyst having a high catalyst activity, which enables the production of an ?-olefin polymer improved in stereoregularity by decreasing an amorphous component, and a production method for the ?-olefin polymer, are developed. Described are a catalyst for polymerizing ?-olefin comprising a combination of (A) a solid catalyst component containing magnesium, titanium and a halogen as an essential component, which may contain if necessary, a silicon compound, an organoaluminum compound, and an electron donor; (B) an organoaluminum compound; and (C) a compound containing a C(?O)N bond such as an amide or an urea; which may further contain if necessary, (D) a silicon compound or a diether compound; and a production method for an ?-olefin polymer using the same.

Abstract: A catalyst having a high catalyst activity, which enables the production of an ?-olefin polymer improved in stereoregularity by decreasing an amorphous component, and a production method for the ?-olefin polymer, are developed. Described are a catalyst for polymerizing ?-olefin comprising a combination of (A) a solid catalyst component containing magnesium, titanium and a halogen as an essential component, which may contain if necessary, a silicon compound, an organoaluminum compound, and an electron donor; (B) an organoaluminum compound; and (C) a compound containing a C(?O)N bond such as an amide or an urea; which may further contain if necessary, (D) a silicon compound or a diether compound; and a production method for an ?-olefin polymer using the same.

Abstract: A high-density multilayer printed circuit board is provided such that crosstalk noise between through holes is avoided and wiring efficiency is increased. Power supply through holes which connect to power supply pins of component parts are combined to make room for via holes in certain portions of the multilayer printed circuit board. These power supply through holes are subsequently restored into their original form. This permits via holes to exist at certain locations so that certain wiring layers can be interconnected. Additionally, by restoring the power supply through holes, crosstalk noise is reduced as the rear side of the multilayer printed circuit board is approached. Finally, dummy power supply lines can be provided to further reduce crosstalk noise. These dummy power supply lines are not connected to power supply pins of the component parts.

Abstract: A flow control apparatus is disclosed which includes a housing, a cylinder disposed in the housing and a spool disposed in the cylinder while being urged in one direction along the axial direction of the cylinder. The spool slides along the axial direction against the urging force, to adjust the flow quantity of a fluid. A stopper is disposed in the housing for restricting the range of the sliding movement of the spool toward the urging direction. A pair of engaging projections are disposed on the peripheral wall of either the housing and the stopper and are separated from each other by substantially 180 degrees, and an engaging hole disposed in the other of the peripheral wall and the stopper so as to engage at least one of the engaging projections. This at least one projection is engaging with the engaging hole by the urging force acting on the spool, to attach the stopper to the housing.

Abstract: Provided is an atomizer-equipped combustion apparatus including an atomizing device for atomizing a fuel, a spray chamber for mixing the fuel atomized by the atomizing device with air to form a mixture, and for moving the mixture downwardly toward an opening at a distal end portion of the spray chamber, and a wind box provided so as to surround a lower portion of the spray chamber for forming a combustion space between itself and the spray chamber, the wind box being provided with a plurality of air supply holes facing a lower portion of the spray chamber. A mixture of external air and a fine spray of fuel produced by the atomizer can be ignited instantaneously by means of a comparatively simple structure, odors produced at igition and extinguishment can be greatly suppressed and a high turn-down ratio can be obtained.

Abstract: An ultrasonic vibrator horn for use with ultrasonic atomizing apparatus for atomizing liquids, such as liquid fuels, employed in gasoline engines, diesel engines, gas turbines and various combustors such as industrial, commercial and domestic boilers. The ultrasonic vibrator horn has a body portion connected at one axial end thereof to an ultrasonic vibration generating means. The other axial end of the body, at which atomization of liquid material fed to the horn takes place when the horn is driven by the vibration generating means, is of conical shape. The body has at least one external groove formed in it. The groove communicates with the conical end of the body for receiving the liquid material and directing it to the conical end.